JP2018041259A - system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system of which the convenience is improved by reducing confusion of a user or helping the user to know what kind of information is being stored on a storage medium removed from a medium housing part.SOLUTION: At least two medium housing parts hold removable storage media. Control means has a function to access the storage medium housed in each of the medium housing parts and has a function to store a video image picked up by an imaging apparatus that is mounted on a vehicle, on the storage medium held in at least one medium housing part. Notification means notifies a user of a role of the storage medium that is accessed by the control means.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a system for recording a video imaged by an imaging device.

  In an image recording apparatus that continuously records captured images, Patent Document 1 discloses an image recording apparatus that improves the stability of the recording operation of captured images. The image recording apparatus disclosed in Patent Literature 1 is a control capable of executing control for recording a captured image on a storage medium, an imaging camera for acquiring image information, a medium storage unit that stores a storage medium in a removable manner. Means. The control means erases the captured images in order from the oldest when the image was captured, and sequentially stores a new captured image in the free area while securing a free area in the storage area of the storage medium. It is possible to execute a control mode for recording a series of captured images over a number of times using a storage medium. This image recording apparatus includes at least two medium accommodating units.

JP 2014-220803 A

  If at least two medium accommodating portions are provided, for example, the user may be confused as to which medium accommodating portion the storage medium should be accommodated. For example, it may be difficult for the user to understand what information is stored in the storage medium removed from one medium accommodating unit. An object of the present invention is to provide a system that improves user convenience by reducing the user's confusion or by helping the user to know what information is stored in the storage medium removed from the medium storage unit. It is to be.

(1) at least two medium accommodating units for holding a removable storage medium;
A function of accessing a storage medium accommodated in each of the medium accommodation units, and a function of storing an image captured by an imaging device mounted on a vehicle in a storage medium held in at least one of the medium accommodation units Control means to have,
The system may include a notifying unit that informs a user of a role of a storage medium accessed by the control unit.

  The user can remove the storage medium in which the video imaged by the imaging device mounted on the vehicle is stored from the medium housing unit and use it in another device. Further, the user can recognize the role of the storage medium held in or held in the medium storage unit. A user who recognizes the role of the storage medium can appropriately handle the storage medium according to the role when the storage medium is attached to or detached from the medium storage unit or after the storage medium is removed from the medium storage unit. This increases convenience for the user.

  For example, the notification unit may notify the user of the role of the storage medium loaded in the medium storage unit before the user mounts the storage medium in the medium storage unit. The user can know the role played by the storage medium before mounting the storage medium in the medium storage unit. For example, when the user removes the storage medium from the medium storage unit, the notification unit may notify the user of the role of the storage medium attached to the medium storage unit. The user can know the role played by the storage medium removed from the medium storage unit. The notification means particularly preferably notifies the user of the role played by the storage medium both before the user attaches the storage medium to the medium storage unit and when the user removes the storage medium from the medium storage unit.

  As a removable storage medium, for example, an SD card, a micro SD card, an XQD card, or the like can be used. For example, an insertion port such as a slot may be provided in the system housing corresponding to the medium accommodating portion. For example, the user can attach the storage medium to the medium accommodation unit through the insertion port and remove the storage medium from the medium accommodation unit.

  The access to the storage medium stored in the medium storage unit may include at least one of writing data to the storage medium and reading data from the storage medium.

  Next, the role played by the storage medium held in the two medium accommodation units will be exemplified.

  (1.1) For example, it is good to record the image imaged with the imaging device mounted in the vehicle in both of two storage media. As this image, for example, an image from the time when the vehicle is turned on to the time when it is turned off, an image of a predetermined time before and after the time when a predetermined event occurs during the period when the vehicle is turned on. A video during the parking period, a video for a predetermined time before and after a predetermined event occurs during the parking period, and the like may be used. A user can use a system including the imaging apparatus as a drive recorder.

  For example, the same video may be recorded simultaneously on storage media held in two medium accommodating units, and one may have a role of backing up the other. For example, one storage medium may have a role of recording a video in real time, and the other storage medium may have a role of copying the recorded video. For example, one storage medium may have a role of recording high resolution or high frame rate video, and the other storage medium may have a role of recording at a low resolution or low frame rate for a long time.

  For example, one video may be recorded alternately on two storage media at regular intervals, and the two storage media may have a role of complementing each other to form one video. For example, by switching two storage media in a short time for each video writing unit to the storage medium and recording one video alternately on the two storage media, the apparent writing speed on the two storage media It is good to have a role to improve For example, when a temporary write error occurs in one storage medium, the other storage medium may have a role of replacing the storage medium in which the write error has occurred.

  For example, when one storage medium has a role of constantly recording video from the time when the vehicle power is turned on to the time when it is turned off, and when a predetermined event occurs in the other storage medium It is good to have a role to record the video before and after. For example, one storage medium may have a role of constantly recording video during a period when the vehicle is turned on, and the other storage medium may have a role of recording video during a parking period.

  For example, the format format of one storage medium is changed to a general-purpose format format so that it plays a role as a storage medium for playing back video on another general-purpose playback device, and the format format of the other storage medium is an original format. It is preferable that the format be used as a storage medium for playing back video only with this system and a device having a unique playback function.

  For example, one storage medium has a role of recording images before and after a specific event (first type event) occurs, and the other storage medium has an event different from the first type event ( It is preferable to have a role of recording images before and after the time when the second type event) occurs. Information defining the first type event and the second type event may be stored in advance in the control means.

  For example, two imaging devices (a first imaging device and a second imaging device) are mounted on a vehicle, and one of the storage media has a role of recording video captured by the first imaging device, The other storage medium may have a role of recording the video imaged by the second imaging device.

  (1.2) One storage medium has a role of recording an image captured in a state where the imaging device is mounted on the vehicle, and the imaging device is taken out from the vehicle to the other storage medium, for example, outdoors. It is good to have the role which records the image image | photographed in the state mounted | worn with the apparatus etc. which are used for sports. Examples of outdoor sports include snowboarding, skiing, surfing, windsurfing, cycling, and jogging. The user can use the system including the imaging device as a drive recorder or as an action camera.

  (1.3) One storage medium is provided with a role of recording an image captured by an imaging device mounted on a vehicle (a surrounding image of the vehicle, in particular, a front image) as it is, and the other storage medium is, for example, a vehicle It is preferable to have a role of recording a video obtained by synthesizing another image with a video imaged by an imaging device mounted on the computer. As another image, an alarm image or the like for informing that the radar apparatus has been approached may be used. It is possible to easily find a video in a period approaching the radar device by fast-forwarding and reproducing the video in which the alarm image is synthesized. It is possible to check how the driver has operated when an alarm or the like is generated in light of the content of the alarm.

  (1.4) A log in which one storage medium has a role of recording an image captured by an imaging device mounted on a vehicle, and the other storage medium includes, for example, vehicle information during traveling arranged in time series It is good to have a role to record data.

  For example, one storage medium plays a role of recording images around the vehicle, especially in front of the vehicle, and the other storage medium is checked for the presence of dangerous driving such as sudden start, sudden turn, sudden braking, sudden acceleration, etc. It is better to have a role of recording log data that is the basis for this.

  (1.5) One storage medium has a role of recording video captured by the imaging device mounted on the vehicle, and a specific image is extracted from the video captured by the imaging device on the other storage medium. It is desirable to have a role of recording a template image for doing so. As a template image, for example, an image of various traffic signs, an image of a specific person, an image of a specific vehicle number, or the like can be used. By performing image recognition based on a traffic sign image on an image acquired in real time, a traffic rule applied to the current position can be detected. By performing image recognition based on an image of a specific person and an image of a specific vehicle number for an image acquired in real time, the specific person and the specific vehicle can be found.

  (1.6) Information that is a key for allowing one storage medium to record video captured by an imaging device mounted on a vehicle and allowing the other storage medium to access various systems It is preferable to have a role of storing (information indicating access authority). It is possible to prevent a user having only a lower access authority from performing a process that is allowed only by a person having a higher access authority. Thereby, security can be improved.

  (1.7) One storage medium has a role of recording video captured by an imaging device mounted on a vehicle, and the other storage medium specifies a condition for marking the recorded video. It is good to have a role to memorize the information that is the basis of. The control means may apply a mark indicating the event occurrence to the video at the time when the occurrence of the event satisfying the condition for marking is detected. After recording the video, it is possible to easily search for a video when a predetermined event occurs using a mark attached to the video. A storage medium having a role of recording video also has a role of recording a mark indicating that a predetermined event has occurred.

  (1.8) One storage medium has a role of recording an image captured by an imaging device mounted on a vehicle that regularly travels on a predetermined route, and the other storage medium has a predetermined recording function. It is preferable to have a role of recording the video imaged by the imaging device mounted on the vehicle that has traveled the route. The control means may reproduce a video imaged in the past in a vehicle traveling on a predetermined route. The driver can travel without hesitation on a route determined based on the reproduced video.

  (1.9) Instead of the imaging device mounted on the vehicle, one storage medium has a role of recording video captured by the imaging device displayed in the store of the store, and the other recording medium has It is better to have a role of recording video images for sales promotion. The dealer can use the system including the imaging device as a demo machine for sale. In addition, by playing video images for sales promotion, it is possible to inform consumers of the function and performance of the system.

  As a notification means, for example, a display device that displays an image, a sound output device that outputs sound, a communication device that transmits an instruction to display an image on the display device or output sound to the sound output device, and a position that houses the storage medium It may be a character or a graphic displayed on the surface of the housing in association with In addition, as a notification means, in the configuration in which the storage medium is mounted in the medium accommodating portion through the insertion port of the housing, the configuration in which the size of the insertion port is changed, the configuration in which the shape of the insertion port is changed, the insertion of the storage medium It is good also as a structure which changed the direction and the difficulty of access to an insertion port differing.

  For example, the role of the storage medium is not fixed to one example (role mode) exemplified in the above (1.1) to (1.9), and the role of which mode is assigned to the storage medium. Or change it. For example, it is preferable to have a function of allowing the user to select which mode role the storage medium plays. When the storage medium is removed from all the medium storage units, the mode of the role played by the storage medium may be returned to the preset basic mode. The role mode may not be determined before the storage medium is attached to the medium accommodating portion, and the role mode may be determined after the storage medium is attached to the medium accommodating portion.

(2) The control means has a function of alternately recording video images taken by the same imaging device on a storage medium respectively held in the medium container, every time unit;
The control means may be a system having a function of notifying the user that the storage media respectively held in the medium accommodating portion have a role of constituting one video through the notification means. .

  The user can easily recognize that the storage media respectively held in the plurality of medium storage units form one video. After the storage medium is removed from the medium storage unit, it is preferable to handle a plurality of storage media as a set. This may cause a situation in which the storage medium in the set is dissipated and one video cannot be configured. It becomes difficult.

  For example, when a storage medium held in one medium accommodating part is removed, the control means removes the storage medium held in the other medium accommodating part, Prompt the user with images. For example, when the storage medium is held in one medium storage unit, the control unit may prompt the user by sound or image to hold the other storage medium in the other medium storage unit. For example, the time unit for switching the storage medium for recording the video is preferably from several minutes to several tens of minutes.

  (3) When the control unit detects that the storage medium held in one of the medium storage units has been removed, the storage medium held in the other medium storage unit is also imaged through the notification unit. It is preferable that the system has a function of notifying the user that it is necessary for playback of the video.

  When the user removes the storage medium from the medium accommodating portion in order to play back the video recorded on the storage medium with another device, it becomes difficult to forget to remove the other storage medium. As a result, the video can be reproduced on another device without rework. For example, in the configuration of (2) above, the user can play a video on another device using a pair of two storage media on which the video is recorded alternately every certain time unit. For example, information (hereinafter referred to as key information) indicating the authority to record video on one storage medium and to reproduce the video may be stored on the other storage medium. At this time, the user can play back the video on another device using the storage medium on which the video is recorded and the storage medium on which the key information is stored as a set.

(4) Furthermore, it has a communication means which transmits an image,
The control means displays a video that has not been transmitted via the communication means among videos recorded in a storage medium held in one of the medium storage units on a storage medium held in the other medium storage unit. It is preferable that the system has a function of reading out and transmitting during the recording period.

  The control unit can transmit the recorded video to the external device after recording the video on the storage medium. The user can play back the video on the external device without removing the storage medium from the medium housing unit. In general, when a removable storage medium is read while data is being written, the writing and reading speed tends to be significantly reduced. During the recording of the video on the storage medium, the video recorded on the storage medium is not read, and during the period when the video is recorded on another storage medium, the video that could not be transmitted is read and transmitted. A decrease in writing and reading speed can be suppressed. Even if the video cannot be transmitted immediately due to a communication error or the like, the video can be read from the storage medium and transmitted later. The storage medium plays a role of recording a video, and also plays a role of a storage unit that stores a video to be transmitted through the communication unit until the transmission is completed.

  For example, the control unit may record the video imaged by the imaging device in a storage medium held in the medium storage unit and transmit the video to the external device immediately (in real time) through the communication unit. For example, the communication means may transmit video by wireless communication. As the wireless communication technology, for example, a wireless communication technology compliant with a short-range wireless communication standard such as the WiFi standard or Bluetooth (registered trademark) or a mobile communication system standard such as 4G can be used. For example, a server, a personal computer, a smart phone, a tablet terminal, or the like can be used as an external device.

  (5) The control means has a buffer memory for temporarily storing the video, and transfers the video captured by the same imaging device from the buffer memory to the storage medium held in one of the medium storage units. The system may have a function of starting the transfer from the buffer memory to the storage medium held in the other medium accommodating unit before the transfer is completed.

  The apparent writing speed can be increased as compared with the case of recording video on one storage medium. As a result, it is possible to record a video with a high frame rate and a high resolution that cannot be written in time at a writing speed to one storage medium. The two storage media record a short-time video in which temporally continuous images are divided into small pieces on the time axis, and two storage media form one temporally continuous video as a set. Take the role of composing.

  For example, DMA transfer may be used for recording video on a storage medium, and the transfer destination storage medium may be switched for each DMA transfer block.

  A buffer memory may be prepared for each medium storage unit. When the process of transferring the video in one buffer memory to the storage medium is completed, the new video is buffered in the buffer memory that has completed the video transfer without depending on the transfer state of the video in the other buffer memory. Can do. You may divide the memory space in one buffer memory into the area | region for one medium accommodating part, and the area | region for the other medium accommodating part.

(6) The at least two medium accommodating units support interface standards having different maximum writing speeds,
The control means writes the video imaged by the imaging device in real time to a storage medium held in the medium housing unit that supports the interface standard with the higher maximum writing speed, and in real time according to a command from the user A system having a function of copying the written video to a storage medium held in the other medium storage unit may be used.

  Compared with the case where the video is recorded in real time on the storage medium with the slower writing speed, it becomes possible to record the video with a high frame rate and high resolution in real time. When a video recorded on a storage medium with a higher writing speed is copied to another storage medium, a high writing speed is not required for the copy destination storage medium. For this reason, a lower-priced storage medium can be used as a storage medium with a slower writing speed. Thus, the same video can be copied to a plurality of low-cost storage media and used for distribution. The storage medium held in the medium container supporting the interface standard with the fastest maximum writing speed plays a role of recording video in real time, for example, and the storage medium held in the other medium container is already recorded, for example It plays the role of copying the video that has been recorded. In particular, since the present system has the configuration (1), the user can distinguish between a storage medium for recording video in real time and a storage medium for copying.

  For example, an XQD card can be used as a storage medium with a higher maximum writing speed, and an SD card can be used as a storage medium with a lower maximum writing speed.

  For example, the notifying unit specifies information (for example, a position) for specifying a medium storage unit to which a storage medium for recording video in real time is to be mounted, and information (for example, a position) for specifying a medium storage unit to be mounted for a copy storage medium ) May be displayed on the display device.

(7) At least one of the medium accommodating units supports an interface standard with a storage medium having a wireless communication function,
The control unit reads a video from a function of causing a storage medium having a wireless communication function to transmit a video captured by an imaging device and a previous storage medium held in the other medium storage unit. It is preferable that the system has a function of transmitting the video.

  Video captured by the imaging apparatus can be wirelessly transmitted to an external device via a storage medium having a wireless communication function. Thereby, the user can reproduce | regenerate an image | video with an external apparatus, without removing a storage medium from a medium accommodating part. The storage medium held in one of the medium storage units plays a role of transmitting a video wirelessly, and the storage medium held in the other medium storage unit plays a role of recording a video. Note that a storage medium that plays a role of transmitting wirelessly may further play a role of recording video.

  As a storage medium having a wireless communication function, for example, an SDIO card having a WiFi communication function, an SDIO card having a mobile communication system communication function, an SDIO card having a transfer jet communication function, or the like can be used.

  It is further preferable that the two medium accommodating units support an interface standard with a storage medium having a wireless communication function. For example, when a video is recorded on a storage medium held in one medium container, the video already recorded on the storage medium held in the other medium container is transferred to the storage medium. Can be sent using the function.

(8) When one of the medium accommodating portions holds a storage medium in which images captured in the past by an imaging device mounted on a vehicle are recorded together with the captured position information,
The control means may be a system having a function of reading an image corresponding to corresponding position information from a storage medium held in the medium accommodating portion and displaying the image on the display means based on the current position of the vehicle.

  The driver can drive while referring to the video displayed on the display means. The images captured in the past may be captured while traveling along the recommended travel route of the vehicle. For a driver who is not guided by the recommended travel route, the video displayed on the display means becomes useful information for traveling the recommended travel route. For example, a storage medium held in one of the medium storage units plays a role of recording a video in real time, and a storage medium held in the other medium storage unit takes a function of providing a video when traveling in the past. .

  (9) In the system of (8), the notifying unit provides the user with the medium containing unit that should hold the storage medium on which the video to be displayed on the display unit is recorded, out of the two medium containing units. A system with a function to notify is good.

  The driver can easily know which medium storage unit should hold the storage medium on which images captured in the past are recorded. For this reason, it is difficult to make a mistake in attaching the storage medium to the medium accommodating portion.

(10) Furthermore, an internal power supply for supplying power to the control means when supply of power from the outside is stopped,
The control means records an image on a storage medium held in one of the medium accommodating portions when power is supplied from the outside, and from the internal power supply when the supply of power from the outside is stopped. The system may have a function of receiving power supply and recording video on a storage medium held in the other medium storage unit.

  The user can take the system out of the vehicle and image a desired object. A storage medium in which video captured when the system is mounted on a vehicle is recorded separately from a storage medium in which video captured after being taken out of the vehicle is recorded. In a state where the system is mounted on a vehicle, an image captured by the imaging device is recorded on a storage medium held in one of the medium storage units, and from the storage medium held in the other medium storage unit outside the vehicle. The recorded video can be read out.

  For example, it is possible to drive a vehicle and go out for a vacation, take this system out of the vehicle at the resort and use it as an action camera. Images taken at the resort can be played in the car on the way home.

  For example, one storage medium plays a role of recording a video while the vehicle is running in real time, and the other storage medium plays a role of recording a video captured when used as an action camera, and an action camera. It plays a role of providing an image captured when in use in a vehicle. For example, the notifying unit records information (for example, a position) for specifying a medium housing unit that holds a storage medium for recording a video during traveling of the vehicle, and a storage medium for recording a video captured when used as an action camera. Information (for example, position) for specifying the medium storage unit that holds the image may be displayed on the display means. Thus, the user can easily know which video is recorded in the storage medium held in which medium accommodating unit.

  During the period when power is supplied from the outside to the system, the system is operated as a drive recorder, and when the system is operating as a drive recorder and the external power supply is stopped, the system is operated as a parking surveillance recording recorder. If the main switch of the system is turned on while no power is supplied to the system from the outside, the system may be operated as an action camera. When operating as a drive recorder or a parking surveillance recording recorder, the video is recorded on a storage medium held in one medium container, and when operating as an action camera, held in the other medium container It is advisable to record video on the recorded storage medium.

  After operating as an action camera, when the system is mounted on a vehicle and power supply from the outside is started, the video recorded during the period of operation as the action camera may be automatically reproduced. The user can immediately view and enjoy the video captured as the action camera in the car.

  After operating as an action camera, display the current video captured by the imaging device on the display until a predetermined time has elapsed from when the system was installed in the vehicle and external power supply was started. The video recorded during the period of operation as the action camera after a predetermined time has elapsed may be automatically reproduced. The user can adjust the attitude of the imaging device while viewing the video displayed on the display unit during a period in which the current video captured by the imaging device is displayed on the display unit.

  (11) The control means records an image captured by an imaging device mounted on a vehicle in a storage medium held in one of the medium accommodation units, and an image captured by the imaging device mounted on the vehicle. It is preferable that the system has a function of recording a composite image obtained by superimposing other images on a storage medium held in the other medium storage unit.

  The user can use the composite image for various purposes when checking the video recorded when the vehicle is running after running, and leave the unprocessed video as it is on the other storage medium. it can. At the time of video playback, the composite image and the raw video can be compared. With the unprocessed video, the situation around the vehicle at the time of alarm occurrence can be grasped in detail. Furthermore, since it can be inferred that the unprocessed video has not been tampered with, it is considered that the raw video has higher evidence ability than the composite image. One storage medium plays a role of recording a video in an unprocessed state, and the other storage medium plays a role of recording a composite image obtained by synthesizing an image such as alarm information with the captured video.

  For example, an image generated by a computer may be used as an image to be superimposed on the video imaged by the imaging device. For example, alarm information detected by a device such as a radar detector may be employed as the image generated by the computer. Examples of the alarm information include information indicating the distance to the alarm target such as a radar-type speed controller, and information for alerting the driver such as information prompting the driver to decrease the speed. The person in charge of vehicle management can confirm what kind of driving the driver has performed when an alarm is issued.

  The alarm information may be superimposed on the video and recorded as an image, and the audio information may be recorded by issuing a sound for notifying the alarm. For example, the sound picked up by the microphone in the vehicle may be recorded in the storage medium that stores the raw video, and only the alarm sound may be recorded in the storage medium that records the composite image.

  As a composite image, a translucent image representing alarm information may be superimposed on the video imaged by the imaging device. It is good to divide the screen and display a map around the vehicle position at the time of issuing the alarm on a part of the screen.

  (12) The control unit has a function of recording images captured by two imaging devices in storage media held in different medium storage units, and the notification unit includes the two imaging devices and the medium. It is good to set it as the system which notifies a user the correspondence with an accommodating part.

  The two storage media play a role of recording videos captured by different imaging devices. For example, the notifying unit may display the correspondence relationship between the two medium storage units and the imaging device that captures the video recorded in the storage medium held in the medium storage unit as an image or text information. An image of a wide area that cannot be covered by a single imaging apparatus can be recorded. The user can easily know which imaging device has recorded the video imaged by the storage medium held in which media storage unit. The user can remove the storage medium on which the video to be confirmed is recorded from the medium accommodating portion.

  The control means may notify the user through the notification means that the video recorded in the storage medium held in each of the two medium accommodating portions is a video obtained by imaging different areas in the same period. The user who notices the notification through the notification means can associate the images captured during the same period, for example, and simultaneously display the images at the same time on the display means for confirmation.

  When the user removes only the storage medium held in one medium container, the control means records the video imaged in the same period on the storage medium held in the other medium container. Therefore, it is preferable to prompt the user through the notification means to remove the storage medium held in the medium accommodating portion. This notification makes it difficult to forget to remove the storage medium from the medium storage unit.

  When confirming the video of the storage medium held in the two medium storage units, the playback device may synchronize the two videos and simultaneously display the video at the same time on the display means. The user can easily check the situation around the vehicle at the same time.

  For example, as the two imaging devices, devices that image the front and rear of the vehicle or the front and the interior of the vehicle may be used. After the vehicle travels, it is possible to check the situation of both the front and the rear of the vehicle, or the situation of both the front and the inside of the vehicle with images.

  For example, two imaging devices may be mounted on a work vehicle, and on the one hand, the front of the vehicle may be imaged, and on the other hand, the work location may be imaged. For example, a work vehicle on which an imaging device is mounted may be a forklift, and a work location that is imaged by one imaging device may be a range of lifting and lowering forks. The user can check the traveling state and the working state of the work vehicle with an image after the work.

  For example, two imaging devices may be mounted on a vehicle operating on the premises, and the front of the vehicle may be imaged on the one hand and the driver may be imaged on the other hand. By viewing the images captured by the two imaging devices, it is possible to verify whether or not the driver observes the driving rules on the premises. For example, it is possible to verify whether or not the user has pointed and cheered when making a right or left turn. When audio is added to the video, it is possible to verify whether or not a cheering call such as “right or left” is performed at a specific place.

  For example, different types of imaging devices may be used as the two imaging devices. For example, an omnidirectional camera may be used as one imaging device, and a normal camera may be used as the other imaging device. Based on the information notified through the notification means, the user stores a storage medium in which video captured by the omnidirectional camera is stored and a storage medium in which video captured by the normal camera is recorded. It can be easily distinguished.

  One of the two imaging devices may be housed in the system housing, and the other may be an external camera. Since the user only needs to connect one external camera to the housing, the connection work can be simplified.

  Both of the two imaging devices may be external cameras. The user can select an external camera having suitable performance depending on the object to be imaged and the use of the imaged video. Further, the arrangement position of the imaging device is not affected by the position of the casing of the system, and the degree of freedom of arrangement of the imaging device is increased. The shape of the connection terminal on the housing side of the system for connecting the external camera may be different from each other. Connection errors between two different types of external cameras can be prevented.

  Three or more medium accommodating units may be provided, and imaging devices corresponding to the number of medium accommodating units may be prepared. By preparing three or more medium storage units and imaging devices, a wider range of images can be simultaneously captured and recorded in the corresponding storage medium.

  (13) The control unit records the video imaged by the same imaging device on the storage medium held in the two medium accommodating units with different recording conditions of at least one of the frame rate and the resolution. The notification means may be a system having a function of notifying a user of information based on a difference in recording conditions.

  The storage medium that is recorded at a recording condition with a low frame rate or resolution can be used for long-time recording, and the storage medium that is recorded at a recording condition with a high frame rate or resolution is recorded. It can be used for more detailed analysis of video. Based on the information notified through the notification means, the user can easily determine which medium storage unit holds the video of the storage medium depending on the purpose of use of the video.

  The storage medium for long-time recording has a longer life because the number of rewrites is smaller than the storage medium for detailed analysis. For example, even if the video is not recorded because the storage medium for detailed analysis has reached the end of its life, the video remains in the storage medium for long-time recording. In addition, there is a low probability that the two storage media will reach the end of their lives at the same time. For this reason, even if one storage medium reaches the end of its life, video is normally recorded on the other storage medium, and there is almost no situation in which no video remains on either storage medium. Absent.

  The storage media held in the two medium storage units play a role of recording videos captured by the same imaging device under different recording conditions. For example, information indicating the frame rate, information indicating the resolution, or the like may be employed as the information based on the difference in the recording condition notified to the user by the notification means.

(14) At least one recording condition of a frame rate and a resolution is stored in a storage medium held in at least one of the medium accommodating units,
The control means may be a system having a function of reading a recording condition stored in a storage medium held in the medium accommodating unit and recording a video based on the read recording condition.

  The user can record video on the storage medium under the desired recording conditions by storing the recording conditions in advance in a storage medium held in the medium storage unit.

  As a recording condition, in addition to the frame rate and resolution, for example, a condition for determining the occurrence of an event when recording images before and after the event occurs, a condition for determining whether or not to record audio, and the like may be included. As a condition for determining the occurrence of an event, for example, a detection value of an acceleration sensor mounted on the vehicle may be used as a determination threshold value. In addition to the detection value of the acceleration sensor, other event types may be adopted as the recording condition.

  The storage medium held in the medium storage unit plays a role of recording video, and the storage medium held in at least one of the medium storage units plays a role of storing recording conditions. The notifying unit may notify the user of information (for example, a position) that specifies a medium housing unit that holds a storage medium that stores recording conditions.

  When recording conditions are stored in both storage media held in the two medium storage units, the control means validates the recording conditions stored in the storage medium held in one specific medium storage unit. The video recording conditions stored in the storage medium held in the other medium storage unit may not be adopted, and the video may be recorded on the two storage media based on the effective video recording conditions. The user only needs to hold the storage medium storing the recording conditions that the user wants to actually record in one specific medium storage unit, and does not need to know the recording conditions stored in the other storage medium.

  The control means validates the recording conditions stored in the storage media held in the two medium storage units, and records video based on the recording conditions stored in the storage media for each storage medium. May be. The user can determine recording conditions for each storage medium.

  The control means may record the video on the storage medium based on the recording conditions set in advance in the control means without adopting the recording conditions stored in the storage medium. The user sets the recording conditions in the control means in advance, so that the user can check the recording conditions stored in the storage medium every time the storage medium is held in the medium storage unit, based on the desired recording conditions. Video can be recorded.

  The control means includes a mode for enabling the recording conditions stored in the storage medium held in a specific medium storage unit, a mode for enabling both the recording conditions stored in the storage medium, and The user may be allowed to select one mode from the modes that enable the recording conditions set in the control means. The user can select the most appropriate mode according to the usage pattern of the system.

  The control means may display a plurality of modes to be selected by the user on the display means as menus. The user may select one mode from the menu. When a storage medium that does not store recording conditions is held in the medium container, the mode that enables the recording conditions stored in the storage medium held in the medium container is excluded from the menu. It is good to leave. When the recording condition is not set in the control means, a mode for enabling the recording condition set in the control means may be excluded from the menu. The user can know a list of selectable modes.

  The priority is stored in each storage medium together with the recording condition, and the control means may validate the recording condition with the higher priority. If the priorities are the same, it may be determined which recording condition is to be valid based on the time when the priorities are set. For example, the recording condition with the newer set time may be validated. On the contrary, the recording condition with the older setting time may be validated. It may be set in advance in the control means whether to enable the recording condition with the newer setting time or the recording condition with the older setting time.

  (15) The control means may be a system having a function of recording, in real time, images captured by the same imaging device on both storage media held in at least two of the medium storage units.

  Even if a recording error occurs in a storage medium held in one of the medium storage units and a video is not recorded, the video can be normally recorded in the storage medium held in the other medium storage unit. it can. For this reason, it is possible to avoid a situation in which no video remains. It is possible to remove the storage medium of only one medium storage unit and reproduce the video on another device such as a personal computer.

  For example, storage media held in two medium storage units play the role of recording the same video and backing up each other. For example, the notification means may notify the user that the same video is recorded on the storage medium held in the two medium storage units.

  The control device may store information indicating that another storage medium recording the same video exists in each storage medium on which the same video is recorded, and information (pairing information) relating the two. The control means reads the pairing information of the storage medium held in one medium storage unit, thereby identifying the presence or absence of the paired storage medium storing the same video and the paired storage medium. Can do.

  (16) The control means has a function of verifying when a video is recorded on the storage medium held in the medium container, and a verify error occurs when recording on the storage medium held in one of the medium containers. When the error occurs, the system may have a function of recording the video in which the verify error has occurred in the storage medium held in the other medium storage unit.

  A video that cannot be written due to a verify error during writing to one storage medium can be written to the other storage medium. As a result, it is possible to reduce the frequency of occurrence of a situation in which video cannot be recorded as a whole.

  The storage media held in the two medium storage units play a role of complementing each other and recording the video even if a verification error occurs in one of the storage media when recording the video. For example, the notifying unit may notify the user that one video is recorded in a storage medium held in two medium accommodating units so as to complement each other.

  For example, when an acknowledgment (ACK) signal is returned when writing video to the storage medium, it is determined that a verify error has not occurred, and when a negative response (NAK) signal is returned, it is determined that a verify error has occurred. Good. Alternatively, the presence or absence of a verification error may be determined by reading the recorded video and confirming data consistency.

  After a verification error occurs and the storage medium of the video recording destination is changed, if the verification error occurs in the storage medium after the change, the video recording destination may be returned to the original storage medium. If the cause of the verify error is temporary, there is a possibility that the video can be normally recorded on the original storage medium.

(17) Key information indicating access authority is stored in a storage medium held in at least one of the medium accommodating units,
The control means reads the key information stored in the storage medium held in the medium accommodation unit, and accesses the storage medium held in the medium accommodation unit based on the read key information. It is better to have a system with functions that are restricted or permitted.

  The storage medium held in one of the medium storage units plays a role of recording video, and the storage medium held in the other medium storage unit indicates an access right to the storage medium held in the medium storage unit. Plays the role of storing key information. By restricting access according to the key information, the security of the system can be enhanced. For example, the control means may have a function of operating in any one of an administrator mode and a user mode. As key information to be stored in the storage medium, it is preferable to permit the operation in the administrator mode, permit only the operation in the user mode, or the like. For example, when the control unit is operating in the administrator mode, the control unit can perform initialization processing of the storage medium held in the medium storage unit, but when operating in the user mode, It is preferable that the initialization process of the storage medium held in the storage unit cannot be performed. For example, the information stored in the storage medium may be classified into information that can be browsed only by an administrator and information that can be browsed by general users. When operating in the administrator mode, the control means can read information that can only be viewed by the administrator. However, when operating in the user mode, the control means can only read information that can only be viewed by the administrator. It is better not to be able to read.

  Information for driver guidance may be stored in a storage medium that stores key information. The control means may read out information for driver guidance and cause the output means to output the information. As the output means, for example, a display means for displaying an image or a sound generation means for outputting sound may be used. The driver is motivated to perform safe driving by noticing the information output to the output means. For each driver, the manager may store information for driver guidance in a storage medium based on the driving behavior of the driver and pass the information to the driver.

  For example, it is good to give the storage medium which memorize | stored the information which prompts a stop to the driver | operator who has the habit of ignoring a stop. The control means may output information for prompting the suspension from the output means when the video captured by the imaging device is subjected to image analysis to detect a pause sign. As information for prompting a pause, for example, a voice “Let's pause at a place with a stop sign” may be output. For example, a storage medium storing information that prompts the driver to frequently operate the sudden handle to avoid the sudden handle operation may be given.

  The manager can know the driving habits of each driver by watching the video recorded constantly while the vehicle is running. Further, it is possible to identify a place where dangerous driving has been performed in the past by associating the video recorded in the storage medium with the position information. The manager may store the position information together with the information for driver guidance. When the control unit detects that the vehicle has approached a place where dangerous driving has been performed in the past, the control unit may output information for calling attention so as not to perform dangerous driving. In addition, when the control means detects the occurrence of the dangerous driving of the same type as the dangerous driving stored as information for driver guidance, the control means may output information for calling attention not to perform the dangerous driving from the output means. . Further, the control means may cause the output means to output information for calling attention so as not to perform the dangerous driving when an event that is predicted to occur dangerous driving occurs. For example, when a traffic light is detected in a video imaged by the imaging device, information for calling attention not to ignore the signal may be output from the output means. For example, when a pedestrian is detected in the video imaged by the imaging device, information for calling attention so as to pay attention to the pedestrian may be output from the output unit.

  (18) The notifying unit may be a system having a function of notifying a user of the medium accommodating unit that should hold the storage medium storing the key information among the at least two medium accommodating units.

  A mounting error of the storage medium storing the key information to the medium accommodating portion is less likely to occur. For example, as a notification means for notifying the user of the role played by the storage medium, a sign indicating the key information may be provided on the surface of the casing in the vicinity of the medium housing portion to which the storage medium storing the key information is to be attached. In addition, when the control unit detects that the storage medium storing the key information is loaded in the wrong medium storage unit, the control unit causes the notification unit to output information that prompts the user to mount the storage medium in the correct medium storage unit. Good.

  (19) The control means includes a video imaged by the imaging device from a time point when the vehicle power is turned on to a time point when the vehicle is turned off, and a part of the video image including a time point when a predetermined event occurs. Or a video image captured by the imaging device from the time when the vehicle is turned on until the time when it is turned off. It is preferable that the system has a function of recording video captured by the imaging device during a period in which the power of the vehicle is turned off, in storage media held in different media storage units.

  Compared with the case where the above-mentioned two videos are recorded on one storage medium, the overall recording capacity is increased. Thus, the time during which video captured by the imaging device can be recorded (referred to as continuous recording) from the time when the vehicle is turned on to the time when it is turned off, or the vehicle is turned off. The time during which the video captured by the imaging device during the period during which the image is captured can be recorded (referred to as parking monitoring recording) becomes longer. When performing continuous recording or parking monitoring recording, if the process of overwriting an old video with a new video is performed when there is no free space in the storage medium, the number of overwrites can be reduced. Thereby, the lifetime of the storage medium can be extended.

  A storage medium having an appropriate recording capacity may be prepared according to the capacity of the video to be recorded. For example, a storage medium for recording a part of video including the time when an event occurs (referred to as event recording) does not need to have a capacity as large as that of a recording medium for constant recording or parking monitoring recording. Therefore, prepare a large-capacity storage medium for constant recording or parking monitoring recording, and prepare a storage medium for event recording that has a smaller capacity than a recording medium for constant recording or parking monitoring recording. do it. Thereby, the cost required for the storage medium can be reduced.

  The storage medium held in one medium storage unit plays a role of constantly recording video, and the storage medium held in the other medium storage unit plays a role of parking monitoring recording or event recording. For example, the notification means may notify the user of information (for example, a position) that specifies a medium storage unit in which a storage medium for constantly recording video, parking monitoring recording, or event recording is held.

  The user can remove only the storage medium on which the video to be viewed is recorded from the medium housing unit and play it on an external device. For example, when it is desired to view a video when an event occurs, only the event recording storage medium needs to be removed from the medium accommodating portion.

  The “video captured by the imaging device while the vehicle is powered off” includes, for example, video captured while the vehicle is parked. Images captured over the entire period of parking may be recorded, and it is particularly preferable to record a part of the image including a point in time when a predetermined event occurs during parking. The events may include, for example, the occurrence of motion in the image being captured, the occurrence of vibrations of the vehicle, the generation of loud sounds, the opening of vehicle windows, the opening of vehicle doors, and the like. By recording a part of the video including the time point when the event occurs on the storage medium for parking monitoring recording, it is possible to reduce the consumption of the capacity of the storage medium.

  (20) The control means records an image captured by an imaging device mounted on a vehicle in a storage medium held in one of the medium accommodation units, and acquires information related to traveling of the vehicle acquired from the vehicle. The system may have a function of recording in a storage medium held in the other medium storage unit.

  The administrator can evaluate the driving at the time of video acquisition by associating the video stored in the storage medium with the information related to the traveling of the vehicle at the time of imaging. The storage medium held in one of the medium storage units plays a role of recording video captured by the imaging device mounted on the vehicle, and the storage medium held in the other medium storage unit is acquired from the vehicle It plays a role of recording information related to vehicle travel. For example, the notifying means specifies information (for example, a position) for specifying a medium storage unit that holds a storage medium for recording video, and information for specifying a medium storage unit for holding a storage medium for recording information related to vehicle travel ( For example, the user may be notified of the position).

  The information related to traveling of the vehicle may include, for example, position information, speed information, acceleration information, information indicating the operation status of the vehicle, and the like. Such information can be acquired through, for example, an OBD connector of the vehicle. The operation status of the vehicle may include, for example, an operation status such as whether or not the brake is stepped on and whether or not the direction indicator is released.

(21) An event condition, which is a condition for determining that a predetermined event has occurred, is stored in a storage medium held in at least one of the medium accommodation units,
The control means reads the event condition from the storage medium held in one of the medium storage units, records the video imaged by the imaging device on the storage medium held in the other medium storage unit, When the occurrence of an event satisfying the read event condition is detected, the system may have a function of recording a mark indicating that the event has occurred in association with the video.

  The user can find the video to be confirmed or verified in a short time with reference to the mark recorded on the storage medium in which the video is recorded. As a result, useful video can be extracted from an enormous amount of video and the video can be used effectively. Since the user has only to store the event condition to be confirmed or verified in the storage medium, the user can easily add or delete the event condition.

  The storage medium held in one medium storage unit plays a role of storing event conditions, and the storage medium held in the other medium storage unit records video and the time when an event that satisfies the event condition occurs Play a role to remember. The notification means specifies information (for example, position) that identifies a medium accommodating unit that holds a storage medium that stores event conditions, and information (for example, position) that identifies a medium accommodating unit that holds a storage medium on which video is recorded. To the user.

  The event condition may include a condition for detecting the occurrence of an event that may occur due to, for example, driver fatigue or carelessness. For example, the event conditions include deviation from the driving lane, abnormal approach to the previous vehicle, occurrence of a certain amount of time, lateral blurring, slipping, etc. while the host vehicle is stopped even though the previous vehicle has started. be able to. The occurrence of these events can be detected by installing an advanced driving assistance system (ADAS) on the vehicle. The administrator can make the driver aware of the degree of danger by showing the video of the event occurrence to the driver, which can lead to safe driving.

  The event condition may include, for example, a condition that a specific person or a specific vehicle exists in the captured video. An image of a specific person or vehicle to be detected is stored in a storage medium, and the control unit may detect the specific person or vehicle using an image authentication technique. When the control means detects a specific person or vehicle, the control means may transmit the position information of the detected location, the video at the time of detection, etc. to a data center (for example, a police server). The information sent to the data center provides useful clues to find the person or vehicle that is being arranged.

  The event condition may include, for example, detection of a vehicle (dangerous vehicle) that is moving unsafely or dangerously. The disturbing or dangerous movement may include, for example, meandering, ignoring signals, overspeeding, etc. When the dangerous vehicle is detected, the control means may transmit position information of the detected location, an image at the time of detection, and the like to a data center (for example, a police server). By sharing the existence of a dangerous vehicle among the drivers of a plurality of vehicles, it is possible to prevent an accident caused by the dangerous vehicle from occurring. The driver of the dangerous vehicle can be instructed not to perform dangerous driving.

  The event condition may include detection of a person taking a specific posture, detection of a pedestrian of a specific age, detection of a bicycle, detection of a specific traffic sign, and the like. It is possible to easily confirm or verify what kind of driving the driver has performed when these events occur. For example, as a person taking a specific posture, a person raising his hand, a person holding a selfie stick, etc. may be included. When a person raising his / her hand is detected, for example, it can be verified by video whether or not the driver has paused. When a person holding a selfie stick is detected, it can be verified whether the driver has slowed down. Children or old people may be included as pedestrians of a specific age. When a child or an elderly person is detected as a pedestrian, for example, it can be verified whether or not the driver has slowed down. When various traffic signs are detected, it can be verified, for example, whether the driver complies with traffic rules.

 (22) The control means records a video in a general-purpose file format on a storage medium held in one of the medium storage units, and in a unique format on the storage medium held in the other medium storage unit. A system with a video recording function is preferable.

  A storage medium on which video is recorded in a general-purpose file format can be removed from the medium accommodating portion and played back by a general playback device such as a general-purpose media player of a personal computer. A storage medium in which video is recorded in a unique format can be removed from the medium container and played using dedicated application software.

  The storage medium held in one medium storage unit plays a role of recording video in a general-purpose file format, and the storage medium held in the other medium storage unit records video in a unique file format format. Take a role. The notification means includes, for example, information (for example, a position) for specifying a medium storage unit that holds a storage medium that records video in a general-purpose file format format, and a medium storage that holds a storage medium that records video in a unique file format format. It is good to inform the user of information (for example, position) for specifying the part.

  As a general-purpose file format, for example, the avi file format may be adopted. Video compression techniques include MPEG2, Motion JPEG, H.264. H.264, H.C. 265 or the like may be applied.

  (23) The control unit has a function of initializing a storage medium held in the medium accommodation unit, and an operation for initializing the storage medium held in one of the medium accommodation units is performed by a user. And the information specifying the medium accommodating unit to be initialized specified by the user and the confirmation of initialization execution waiting status to the user through the notification means and after receiving a confirmed response from the user It is preferable that the system has a function of executing initialization processing.

  It is possible to prevent an unexpected storage medium from being initialized due to a user operation mistake. As a result, it is possible to prevent a video that is not desired to be erased from being erased.

  As information specifying the medium storage unit to be initialized specified by the user, the control unit may display information specifying the medium storage unit on the display unit in characters or images.

  (24) The control unit records, on the storage medium held in the two medium storage units, images having a mutually complementary relationship and identification information for associating the two storage media, and the one of the media When the storage medium in which the identification information is recorded is held only in the storage unit, the system may have a function of notifying the user through the notification means that there is another storage medium that complements each other.

  When a user attaches or removes a storage medium to / from the medium storage unit, it is difficult to forget to attach or remove one of the two storage media having a mutually complementary relationship. It is possible to avoid the occurrence of a situation where two storage media having mutually complementary relationships are dissipated and a useful video cannot be obtained.

  The storage media held in the two medium storage units play a role of recording videos having a mutually complementary relationship. For example, it is preferable to play a role of storing identification information for identifying a storage medium to be complemented in storage media held in two medium storage units.

  As a mutually complementary relationship, for example, a part of the time zone video is recorded on one storage medium, and the other time zone video is recorded on the other storage medium. It is good to have a relationship in which a video over the range is constructed. It is particularly preferable that the video is divided into small pieces on the time axis, and the divided video images are alternately recorded on two storage media.

  As a mutually complementary relationship, for example, one is a storage medium initialized in a general-purpose format, and the other is a storage medium initialized in a unique format, and the video recorded in both is the same It is good to have a relationship. Depending on the device to be played, video can be played by mounting a storage medium in a format supported by that device. For example, the FAT format may be adopted as the general-purpose format. For example, a format called YP format may be adopted as a unique format format.

  (25) The control means has a function of copying a video recorded in a storage medium held in one of the medium accommodating portions to a storage medium held in the other, and further, copied by a user operation. A system having a function for making a reservation for processing start is preferable.

  It takes a long time to copy video recorded over a long period of time to another storage medium. By making a reservation for starting the copy process, the user can perform the copy process in an idle time when the system is not used.

  The storage medium held in one medium storage unit plays a role of recording the original video, and the storage medium held in the other medium storage unit plays a role as a video copy destination. The notification means, for example, informs the user of information (for example, position) that specifies a medium storage unit that holds a storage medium that is a copy source, and information (for example, position) that specifies a medium storage unit that holds a storage medium that is a copy destination. It is good to inform.

  It is preferable that the user can specify the copy source video. It is preferable that an event-recorded video can be selected as a copy-source video, and a constantly recorded video cannot be selected. In general, a constantly recorded video has a significantly larger capacity than an event-recorded video, so that a long time is required for copying. By making it impossible to select a constantly recorded video as a copy source, it is possible to avoid a situation in which copying takes an unexpectedly long time.

(26) Further, a housing for housing the medium accommodating portion and the control unit is provided, and an insertion port through which the storage medium passes when the medium accommodating portion holds the storage medium is provided for each medium accommodating portion. Provided in the body,
The two medium storage units are configured to hold storage media having different sizes, and the sizes of the insertion openings are different from each other in accordance with the difference in the size of the storage media to be held. And
The notification unit may be a system that notifies the user of the role of the storage medium held in the medium storage unit by a configuration in which the size of the insertion slot is different.

  The user can notice the role of the storage medium attached to the medium accommodating portion through the insertion opening by looking at the size of the insertion opening. For example, the user thinks that a storage medium attached through a large insertion slot will be difficult to lose when carrying, and as a result notices that the storage medium attached through the insertion slot is portable. On the contrary, it is noticed that the storage medium loaded through the smaller insertion slot is used for use in a state where it is always loaded in the medium container.

(27) Further, a housing for housing the medium housing unit and the control unit is provided, and an insertion port through which the storage medium passes when the medium housing unit holds the storage medium is provided for each of the medium housing units. Provided in the body,
One of the insertion openings has a configuration that makes it difficult for the storage medium to pass through the other insertion opening,
The notification means may be a system that notifies the user of the role of the storage medium held in the medium accommodating portion due to the difference in the configuration of the insertion slot.

  The user can recognize the role of the storage medium held in the medium accommodating portion by sensing that it is difficult to pass the insertion slot when the storage medium is mounted. For example, when it is difficult to pass through the insertion slot, the user must use the storage medium that is passed through the insertion slot and mounted in the medium accommodating portion as it is in principle, not for carrying. Notice. On the other hand, when it is easy to pass through the insertion slot, the user notices that the storage medium that passes through the insertion slot and is attached to the medium accommodating portion is for carrying.

  For example, the insertion port that is difficult to pass the storage medium may be configured to have a cover that can be opened and closed, and the insertion port that is easy to pass the storage medium may be configured to be always open.

(28) Furthermore, it has a housing for housing the medium housing portion and the control means,
In a state where the housing is mounted on a vehicle, one of the medium accommodating portions is disposed at a position where it is more difficult to attach a storage medium than the other medium accommodating portion,
The notification unit may be a system that notifies the user of the role of the storage medium held in the medium accommodating unit according to the difference in the position of the medium accommodating unit.

  When a user installs a storage medium, the user can recognize the role of the storage medium to be installed in the medium accommodation unit by sensing that the storage medium is difficult to install or easy to install due to the difference in the position of the medium accommodation unit. . For example, when it is difficult to attach a storage medium, the user notices that the storage medium attached to the medium accommodating portion is not for carrying but is used for use with wearing in principle. On the contrary, when it is easy to attach the storage medium, the user notices that the storage medium attached to the medium accommodating portion is for carrying.

  As a position where the storage medium can be easily mounted, for example, in a state where the housing is mounted on the vehicle, an empty space having a size corresponding to a portion of the surface of the housing from the wrist of a general adult male is adjacent to the surface. Examples include reserved areas. As a size corresponding to a part from the wrist of a general adult male, for example, a sphere having a diameter of 10 cm may be used. As a position where it is difficult to mount the storage medium, for example, an area where such an empty space is not secured can be cited.

  For example, the position on which the storage medium is difficult to be mounted may be the surface of the housing that faces the front, top, or middle of the vehicle. The position where the storage medium can be easily mounted may be, for example, the housing surface facing in the left-right direction or the direction in the passenger compartment. The surface facing the direction of the bracket for attaching the housing to the vehicle may be a position where it is difficult to mount the storage medium.

  For example, the control unit may record the video imaged by the imaging device during the parking period in a storage medium held in a medium storage unit disposed at a position where the storage medium is difficult to attach. It is difficult for the driver to accidentally remove the storage medium from the medium housing unit when the vehicle is parked, making it impossible to record video during the parking period.

  (29) The control means has a function of detecting that an error has occurred in each of the storage media held in the two medium storage units, and an error occurs in the storage medium held in one of the medium storage units. When it is detected that the storage medium in which the error occurred has been removed from the medium accommodating portion, a message prompting the user to remove the other storage medium and submit it to the maintenance staff is output to the output means. It is good to make it a system.

  By inspecting not only the storage medium in which an error has occurred but also the storage medium in which no error has occurred, it becomes easier to isolate the cause of the error. The error includes, for example, a storage medium failure, a write failure, and a specified number of overwriting times exceeding.

(30) The storage medium held in the medium accommodating unit has a mechanical write prohibition switch for prohibiting a write operation,
The medium storage unit has a function of setting a write-protected state by operating a write-protect switch of a storage medium that is held,
When the control means detects that a predetermined event has occurred, the control means may be a system having a function of controlling the medium accommodating portion and setting a write-protect switch on the storage medium to a write-protect state.

  By setting the storage medium in a write-inhibited state, it is possible to prevent the video at the time of the event from being overwritten. A mechanical switch may be used as the write inhibit switch, and the medium accommodating portion may have a function of driving the mechanical switch. The function of driving the mechanical switch can be realized by, for example, a solenoid actuator.

(31) When a video for sales promotion is recorded on the storage medium held in one of the medium storage units,
The control means records, in place of the imaging device mounted on the vehicle, the video imaged by the imaging device displayed in the store on the storage medium held in the other medium storage unit, and a predetermined time has elapsed. Then, it is preferable that the system has a function of stopping recording and displaying the recorded video on the display means.

  The store can increase the consumer's willingness to purchase by displaying a video for sales promotion on the display means. Furthermore, the function of the system can be easily communicated to consumers. The consumer can check the video captured at the store through the display means. Thereby, the consumer can experience the function and performance of the system.

  The storage medium held in one of the medium storage units plays a role of recording a video for sales promotion, and the storage medium held in the other medium storage unit is imaged by an imaging device displayed at a store. It plays a role to record the recorded video. The notification means, for example, information (for example, position) for specifying a medium housing unit that holds a storage medium that records a sales promotion video, and a memory that records a video captured by an imaging device displayed at a store. It is preferable to inform the user of information (for example, position) for specifying the medium accommodating unit that holds the medium.

  At the end of the sales promotion video, you should add a video telling the consumer that shooting will start. The consumer sees this video, knows that imaging is started, and can start the action of directing the imaging device toward the object to be imaged. The control means may end the imaging at a fixed time, automatically reproduce the video, and display it on the display means. When the reproduction of the captured video is finished, it is preferable to return to the reproduction of the sales promotion video.

  (32) The notification means may be a system having a function of notifying a user of a mutual relationship between information stored in storage media held in the two medium storage units.

  The user can know the mutual relationship between the information stored in the storage media held in the two medium storage units. This increases convenience for the user.

  Next, the relationship between information stored in two storage media will be exemplified. First, a case will be described as an example where information stored in two storage media is an image.

  As a mutual relationship between the images, it is preferable that the two images are paired to make sense, and only one of the images does not make sense, or the intended use purpose cannot be achieved. When information stored in two storage media has this relationship, the notification means may notify the user that it cannot be used with only one storage medium. Since the user is urged to carry two storage media as a set, it is difficult for the user to forget to carry one storage medium and use the video.

  As an interrelationship between the images, the image pickup object and the image pickup time are the same, and it is preferable that both the images have a use value independently. As such a relationship, for example, a relationship that the recording formats on the two storage media are exactly the same, a relationship that the format formats of the two storage media are different, a frame rate of video recorded on the two storage media, and a resolution The relationship that the setting conditions are different, etc., all the images acquired during the imaging period are recorded on one side, and only the images before and after the predetermined event occurrence are recorded on the other side, both In both cases, the video before and after the event occurrence is recorded, but the event type is different. When the information stored in the two storage media has this relationship, the notification means may notify the user that the video can be used independently and the difference between the two videos. The user can determine which storage medium should be viewed according to the purpose of use.

  As the interrelationships between the images, since the imaging objects are the same but the imaging times are different, it is preferable that the usage purposes of the images are different. As such a relationship, for example, there is a relationship in which images are captured by an imaging device mounted on a vehicle traveling on a prescribed route, but imaging dates and times are different. When the information stored in the two storage media has this relationship, the notification means may notify the vehicle driver of the image capturing time. Since the driver of the vehicle can check a video recorded in the past when traveling on a predetermined route, an error in the route is unlikely to occur.

  The relationship between the images may be a relationship in which different imaging objects are captured at the same time by different imaging devices. As such a relationship, for example, the relationship between the image in front of the vehicle and the image in the vehicle, the relationship between the image in front of the vehicle and the image in the rear, the relationship between the image in front of the work vehicle and the image of the work target location, etc. Can be mentioned. When the information stored in the two storage media has this relationship, the notification means may notify the user that the imaging times of the two videos are the same. The user can recognize that it is meaningful to play two videos in synchronization with each other.

  The relationship between the images may be a relationship in which the images are captured in different environments using the same imaging device. As such a relationship, for example, an image captured by mounting the imaging device on a vehicle and an image captured by taking the imaging device from the vehicle and attaching it to an outdoor sports equipment can be cited. When the information stored in the two storage media has this relationship, the notification means may notify the user that the two videos are taken in different environments. The user can know that different videos captured in different environments are recorded on the two storage media. Further, it is particularly preferable that the notifying means informs which storage medium is recorded in which environment a video image is recorded. The user can know in which storage medium an image captured in which environment is recorded.

  The relationship between the images is that the images are captured using the same imaging device, but the image recorded on one storage medium is a composite image in which an additional image is superimposed on the captured image. Good. As an additional image, for example, an alarm image issued when the vehicle approaches the radar device may be used. When the video recorded on the two storage media has this relationship, the notification means informs the user that the video recorded on one of the storage media is a composite image in which additional images are superimposed. Good.

  As the interrelationship of the images, the two are images for achieving a common purpose, but it is preferable that one is a pre-prepared image and the other is an image recorded on the spot. . As such a relationship, for example, one can be a sales promotion video explaining the function and performance of the system, and the other can be a video taken on the spot. When the information stored in the two storage media has this relationship, the notification means notifies the user that one of the storage media is an image prepared in advance and that the other storage medium is recorded. Good. When the video of one storage medium is prepared in advance, the user can know that the other storage medium should be used for recording. The consumer can know the outline and performance of the system by viewing the sales promotion video, and can experience the operation and performance of the system by viewing the video recorded on the spot.

  As the interrelationship between the videos, it is preferable that one video is captured by the imaging device and the other video is a template image for extracting a specific image from the video captured by the imaging device. The notification means may notify the user that the image recorded on one storage medium is a template image for image recognition and the other is a storage medium for image recording. The user can extract various images by adding or modifying the template image.

  Next, the case where the information stored in one of the two storage media is a video and the information stored in the other is data other than the video will be exemplified.

  As a mutual relationship between the information, one information may be a video imaged by the imaging device, and the other information may be information (key information) indicating authority to access the storage medium. The notification means may notify the user that the information stored in one of the storage media is information indicating access authority. The user can know that a storage medium serving as a key for permitting a predetermined access authority is necessary to access the video.

  As a mutual relationship between the information, it is preferable that one information is a video imaged by an imaging device mounted on the vehicle, and the other information is log data in which vehicle information is recorded in time series. The notification means may notify the user that one is an image captured by an imaging device mounted on a vehicle and the other is log data. The user can know that useful information regarding traveling of the vehicle can be obtained by combining the video and log data respectively recorded in the two storage media.

  The user can remove the storage medium in which the video imaged by the imaging device mounted on the vehicle is stored from the medium housing unit and use it in another device. Furthermore, the user can recognize the role of the storage medium held in or held in the medium housing unit by the notification from the notification unit. A user who recognizes the role of the storage medium can appropriately handle the storage medium according to the role when the storage medium is attached to or detached from the medium storage unit or after the storage medium is removed from the medium storage unit. This increases convenience for the user.

FIG. 1A is a perspective view of the system according to the first embodiment when viewed obliquely from the rear, and FIG. 1B is a diagram showing the system, windshield, dashboard, and the like in a state where the system is mounted on a vehicle. FIG. 2 is a block diagram of a system according to the first embodiment. FIG. 3A and FIG. 3B are timing charts showing the timing of recording video captured by a camera on an SD card held in an SD card reader and the timing of transmitting video to an external device via a communication circuit. . FIG. 4 is a diagram illustrating an example of an image displayed on the display of the system according to the first embodiment. FIG. 5A is a block diagram of a part of the controller of the system according to the second embodiment, and FIG. 5B is a timing chart showing the timing of transferring video to the SD card. FIG. 6 is a flowchart of processing executed by the controller of the system according to the third embodiment. FIG. 7A is a diagram showing an example of an image displayed on the display of the system according to the third embodiment, and FIG. 7B is a diagram showing an example of an image recorded on one SD card. FIGS. 8A and 8B are conceptual diagrams of video frames respectively recorded on two SD cards by the system according to the fourth embodiment. FIG. 9 is a diagram showing an example of an image displayed on the display of the system according to the fourth embodiment. FIG. 10 is a flowchart of processing executed by the controller of the system according to the fifth embodiment. FIG. 11 is a flowchart of processing executed by the controller of the system according to the sixth embodiment. FIG. 12A is a diagram showing an example of an image displayed on the display by the controller when the SD card attached to one SD card reader is in an operating state, and FIG. It is a figure which shows an example of the image which the controller displayed on the display 11 when the mounted SD card is in an operation state. FIG. 13 is a diagram illustrating an example of an image displayed on the display 11 by the controller of the system according to the seventh embodiment. FIG. 14 is a diagram illustrating an example of an image displayed on the display 11 by the controller of the system according to the eighth embodiment. FIG. 15 is a diagram illustrating an example of an image displayed on the display when the system according to the modification of the eighth embodiment causes the user to select a copy source video. FIG. 16A is a functional block diagram of a part of the system according to the ninth embodiment, and FIG. 16B shows a display on the display when an SDIO card having a wireless communication function is mounted on one SD card reader. It is a figure which shows an example of the image to do. FIG. 17 is a diagram illustrating an example of an image displayed on the display by the controller of the system according to the tenth embodiment in order to notify the user of the recording destination. FIG. 18A is a diagram showing an image on a display on which a correspondence relationship between an event and a recording destination SD card is displayed in the system according to the eleventh embodiment, and FIG. 18B is a modified example of the eleventh embodiment. It is a figure which shows an example of the image which the controller of the system by shown on the display. FIG. 19A is a diagram showing an example of an image displayed on the display of the system according to the twelfth embodiment, and FIG. 19B is a diagram showing a frame sequence of video recorded on one SD card. FIG. 20 is a diagram showing an example of an image displayed on the display of the system according to the thirteenth embodiment. FIG. 21 is a diagram showing an example of a setting window when recording conditions are set on an SD card using a personal computer in the thirteenth embodiment. FIG. 22 is a diagram showing an example of a menu screen displayed on the display of the system according to the modification of the thirteenth embodiment. FIG. 23A is a block diagram showing some functions of the system according to the fourteenth embodiment, and FIG. 23B shows an image on a display on which the correspondence between two cameras and two SD card readers is displayed. FIG. 24A and 24b are schematic views of a system according to a modification of the fourteenth embodiment. FIG. 25 is a diagram showing an example of an image displayed on the display of the system according to the fifteenth embodiment. FIG. 26 is a flowchart of the operation of the system according to the sixteenth embodiment. FIG. 27 is a diagram showing an example of an image displayed on the display of the system according to the sixteenth embodiment. FIG. 28 is a mode transition diagram between operation modes of the system according to the seventeenth embodiment. FIG. 29 is a diagram showing an example of an image displayed on the display of the system according to the seventeenth embodiment. FIG. 30 is a diagram showing an example of an image displayed on the display of the system according to the eighteenth embodiment. FIG. 31 is a diagram showing an example of an image displayed on the display of the system according to the nineteenth embodiment. FIG. 32 is a diagram showing an example of an image displayed on the display of the system according to the twentieth embodiment. FIG. 33 is a perspective view of a system according to the twenty-first embodiment and a plan view of an SD card mounted in the system. FIG. 34A is a perspective view of a system according to the twenty-second embodiment, and FIG. 34b is a perspective view of a system according to a modification of the twenty-second embodiment. FIG. 35 is a perspective view of a system according to the twenty-third embodiment. FIG. 36 is a diagram showing an example of an image displayed on the display of the system according to the twenty-fourth embodiment. FIG. 37 is a block diagram showing partial functions of the system according to the twenty-fifth embodiment.

  Embodiments of the present invention will be specifically described with reference to the following examples.

[First embodiment]
A drive recorder will be described with reference to FIGS. 1A to 4 as a first embodiment of a system for recording video.

  FIG. 1A is a perspective view of the system 1 according to the first embodiment when viewed obliquely from the rear. An SD card insertion slot 10a and an SD card insertion slot 10b are provided on one side of the casing of the system 1. A display 11 and a plurality of operation buttons 12 are provided on the rear surface of the housing. A joint rail 13 is provided on the upper surface of the housing. Although not shown in FIG. 1A, a camera lens is provided on the front surface of the housing. A DC jack is provided on the side surface that does not appear in FIG. 1A, and a speaker and an HD output terminal are provided on the bottom surface.

  A camera including a lens captures an image in front of the vehicle, for example. The DC jack is a jack for connecting to a DC power source via a power cable. SD card insertion openings 10a and 10b are insertion openings for inserting SD cards. The speaker outputs sound and voice. The HD output terminal is a terminal for connecting to another information device via a cable. The joint rail 13 is for attaching a joint for mounting the system 1 on a vehicle. The display 11 displays various images. The operation buttons 12 are used for inputting various commands to the system 1 when operated by the user.

  FIG. 1B is a diagram illustrating the system 1, the windshield 3, the dashboard, and the like in a state where the system 1 is mounted on a vehicle. The system 1 is disposed at a position on the passenger seat side adjacent to the room mirror 4 near the center in the left-right direction, above the windshield 3 of the vehicle. The system 1 is fixed by being attached to the windshield 3 with an attachment member such as a double-sided tape. The DC jack of the system 1 is connected to the cigar socket 5 via the power cable 6. When the accessory power supply of the vehicle is turned on, power is supplied from the cigar socket 5 to the system 1.

  FIG. 2 is a block diagram of the system 1 according to the first embodiment. The system 1 includes a controller 20, a camera 17, a database 21, a GPS receiver 16, SD card readers 14a and 14b, an acceleration sensor 18, a speaker 15, a display 11, an operation button 12, and a communication circuit 19. Although the SD card readers 14a and 14b should be strictly called “SD card reader / writer”, they are simply called “SD card reader” in this specification.

  The speaker 15 and the display 11 function as notification means for notifying the user of various information. The speaker 15 emits an alarm or various information by sound or voice based on the control of the controller 20. The display 11 displays various information as images based on the control of the controller 20. The operation buttons 12 function as input means for the user to give various commands to the system 1.

  The camera 17 functions as an imaging device that captures a moving image within the angle of view (within the field of view). The camera 17 takes the captured moving image into the controller 20 as video data. The controller 20 records video on an SD card held in at least one of the SD card readers 14a and 14b based on video data input from the camera 17.

  The database 21 is stored, for example, in a non-volatile memory (for example, EEPROM) externally attached to the controller 20. The database 21 includes map data, for example.

  The GPS receiver 16 detects the position information of the host vehicle at the current time based on an instruction from the controller 20. The position information includes the time obtained based on the signal from the GPS satellite, the speed of the host vehicle, the longitude, the latitude, the altitude, and the like. The controller 20 performs processing for recording the history of the position information.

  The SD card readers 14a and 14b function as medium storage units that hold the SD cards 22a and 22b, respectively. The SD cards 22a and 22b function as removable storage media. The user can attach the SD cards 22a and 22b to the SD card readers 14a and 14b through the SD card insertion openings 10a and 10b (FIG. 1A), respectively. The SD card readers 14a and 14b read the data of the SD cards 22a and 22b held in the SD card readers 14a and 14b or store the data in the SD cards 22a and 22b based on the control from the controller 20, respectively. .

  As the acceleration sensor 18, a three-axis type sensor that detects acceleration and inclination in directions of three axes (x axis, y axis, and z axis) is used. The measurement value obtained by the acceleration sensor 18 is always taken into the controller 20. The controller 20 acquires triaxial acceleration information every 10 ms, for example.

  The controller 20 includes a well-known memory such as a CPU 20a, ROM 20b, and RAM 20c, a timer 20d, and other peripheral circuits. Various programs are stored in the ROM 20b of the controller 20. The controller 20 implements various functions by executing these programs. The various programs include an operating system (OS), a GPS information processing program, a video processing program, a communication processing program, and the like.

  By executing the GPS information processing program, the controller 20 can store the GPS information received by the GPS receiver 16 in the SD cards 22a and 22b held in the SD card readers 14a and 14b, respectively. By executing the video processing program, the controller 20 can record the video captured by the camera 17 in a predetermined recording area of the SD card in association with the time. The controller 20 has a function of accessing the SD cards 22a and 22b held in the SD card readers 14a and 14b, respectively. The image is captured by the camera 17 on the SD card held in at least one of the SD card readers 14a and 14b. It functions as a control means having a function of recording video.

  The display 11 functions as a notification means for notifying the user of the role played by the SD cards 22a and 22b accessed by the controller 20.

  The communication circuit 19 functions as a communication unit for performing wireless communication with an external device such as a server, a personal computer, a smartphone, a tablet terminal, or the like. The controller 20 has a function of transmitting data such as video to an external device via the communication circuit 19 by executing a communication processing program. As the communication circuit 19, for example, a communication circuit compliant with a short-range wireless communication standard such as WiFi standard, Bluetooth (registered trademark), or a mobile communication system standard such as LTE or 4G may be used. The standard for short-range wireless communication can be applied to communication between a work vehicle (forklift or the like) operating on the premises and an external device, for example. The standard of a mobile communication system can be applied, for example, to communication between a vehicle moving in a wider area and an external device.

  3A and 3B show the timing at which the video captured by the camera 17 is recorded on the SD cards 22a and 22b held in the SD card readers 14a and 14b, respectively, and the video is transmitted to the external device via the communication circuit 19. It is a timing chart which shows the timing to perform.

  FIG. 3A shows a timing chart during a period in which the communication line is in a communicable state. The controller 20 has a function of alternately recording images captured by one camera 17 on the SD cards 22a and 22b at certain time units. In the example shown in FIG. 3A, the controller 20 records the video captured in the periods T1, T3, T5, T7... On one SD card 22a, and in the periods T2, T4, T6, T8. The captured video is recorded on the other SD card 22b. Further, the controller 20 transmits the video to the external device in real time via the communication circuit 19.

  FIG. 3B shows a timing chart when the communication line through the communication circuit 19 is temporarily interrupted. In FIG. 3B, the communication line becomes incapable of communication at the start time t1 of the period T4, the communication line is restored at time t2 in the middle of the period T5, and becomes incapable of communication at time t3 in the middle of the period T6. An example is shown in which the communication line has been restored at time t4 in the middle of.

  Even during a period in which the communication line is interrupted, the controller 20 records video on the SD cards 22a and 22b alternately. During a period when the communication line is interrupted, the controller 20 does not transmit video through the communication circuit 19. For example, the controller 20 records the images A and B captured during the period from t1 to t2 on the SD card 22b and records the image C on the SD card 22a, but does not transmit it to the external device. The video D captured during the period from t3 to t4 is recorded on the SD card 22b and the video E is recorded on the SD card 22a, but is not transmitted to the external device.

  The controller 20 reads out the video A that has not been transmitted in real time via the communication circuit 19 from the video recorded on the SD card 22b during the period T5 during which the video is recorded on the other SD card 22a. To the external device. The video B that could not be read and transmitted in the period T5 and the video D recorded in the period T6 are read from the SD card 22b and transmitted to the external device via the communication circuit 19 in the period T7. The video C that could not be transmitted in the period T5 is read from the SD card 22a in the next period T6 and transmitted to the external device via the communication circuit 19. Similarly, the video E that could not be transmitted in the period T7 is read from the SD card 22a in the next period T8 and transmitted to the external device via the communication circuit 19. In the period T5 to T8, the controller 20 simultaneously executes both real-time video transmission and video transmission and transmission recorded on the SD card 22a or 22b.

  In this way, the controller 20 writes video to one SD card 22a, reads video from the other SD card 22b (periods T1, T3, T5, T7...), And from one SD card 22a. A state (periods T2, T4, T6, T8...) In which the video is read and the video is written to the other SD card 22b is alternately made in time.

  The controller 20 displays an image on the display 11 informing the user of the role of the two SD cards 22a and 22b.

  FIG. 4 shows an example of an image displayed on the display 11. The screen of the display 11 is divided into a mode display area 31 located at the upper end, a time display area 32 located at the lower end, and a video display area 30 sandwiched between the two. The controller 20 displays the video captured by the camera 17 in the video display area 30 in real time. Icons indicating various modes are displayed in the mode display area 31. In the time display area 32, the current time is displayed as a number.

  In the mode display area 31, an icon 55 indicating that the video imaged by the camera 17 is recorded on one of the SD cards 22a and 22b is displayed. The switch indicated by the icon 55 is switched to the icon representing the SD card that is currently recording video. When the SD card for recording video is switched, the switch in the icon 55 is also switched.

[Effect of the first embodiment]
Next, the excellent effect of the first embodiment will be described. The user can remove the SD cards 22a and 22b in which the images captured by the camera 17 mounted on the vehicle are stored from the SD card readers 14a and 14b and use them in other devices. Further, the user can recognize the role of the SD cards 22a and 22b held or held in the SD card readers 14a and 14b by looking at the icon 55. The user who has recognized the role of the SD cards 22a and 22b can connect the SD card 22a and 22b to the SD card reader 14a and 14b, or after removing the SD card 22a and 22b from the SD card reader 14a and 14b. 22a and 22b can be appropriately handled according to their roles. This increases convenience for the user.

  In the first embodiment, video recorded on the SD cards 22a and 22b can be transmitted to an external device by wireless communication. For this reason, without removing the SD cards 22 a and 22 b from the system 1, it is possible to reproduce the video on the external device. In this specification, video data may be simply referred to as video.

  In general, when data is read from an SD card while data is being written, the data transfer speed is slow. For example, if unsent video C recorded on the SD card 22a shown in FIG. 3B is read and transmitted during the period T5 when video is recorded on the SD card 22a, the data transfer rate to the SD card 22a becomes slow. End up. If the writing speed becomes slower than the speed required for recording the video, the video cannot be recorded normally. In the first embodiment, during the recording of the video on the SD card 22a (period T5), the video C recorded on the SD card 22a is not read, but the video is recorded on the other SD card 22b. Since the video C that could not be transmitted is read and transmitted in the period T6, it is possible to suppress a decrease in writing and reading speed.

  Note that the video writing to one SD card 22a and the video reading from the other SD card 22b can be performed in parallel by the DMA controller.

  Even if the video cannot be transmitted in real time due to a communication error or the like, the video can be read and transmitted from the SD cards 22a and 22b later. The SD cards 22a and 22b play a role of recording video, and also play a role as storage means for storing video to be transmitted through the communication circuit 19 until transmission is completed.

  When the video recorded in the SD cards 22a and 22b is left in the buffer memory in the controller 20 until the transmission via the communication circuit 19 is completed, the video is not read from the SD cards 22a and 22b, and the buffer memory Video can be read out and transmitted from. However, when this method is adopted, it is necessary to leave in the buffer memory all images captured during a period when the communication line is unusable, so a large-capacity buffer memory must be secured. Don't be. In the first embodiment, since the video can be deleted from the buffer memory when the video is recorded on the SD cards 22a and 22b, an increase in the capacity of the buffer memory can be suppressed. Furthermore, since the buffer memory is volatile, when the power supply is stopped, the video in the buffer memory is erased. In the first embodiment, since the video is recorded on the nonvolatile SD cards 22a and 22b, the untransmitted video is not erased even if the supply of power is stopped.

  The capacity of video recorded within one time unit is sufficiently larger than the capacity of the DMA transfer block. The unit of time for switching between the SD cards 22a and 22b for recording video may be in the range of several minutes to several tens of minutes, for example.

[Modification of the first embodiment]
Next, a modification of the first embodiment will be described. In the first embodiment, the image captured by the camera 17 is a moving image. An image compression technique may be used when recording moving images on the SD cards 22a and 22b. For example, a moving image may be composed of I frames (key frames) and P frames. When transmitting via the communication circuit 19, it is preferable to transmit the I frame and a plurality of subsequent P frames as an inseparable minimum unit, and transmit each minimum unit or a plurality of minimum units as one transfer unit.

  For example, during the period T5 shown in FIG. 3B, the CPU 20a performs both processing of writing video to the SD card 22a and reading video from the SD card 22b. Therefore, the burden on the CPU 20a increases. If the processing capacity of the CPU 20a is not sufficient, video may be read from the SD cards 22a and 22b and transmitted after the end of real-time transmission.

  In addition, since it is necessary to transmit both the video to be transmitted in real time and the video A read from the SD card 22b during the period T5 shown in FIG. 3B, a high data transfer rate is required for the communication line. It is done. If the data transfer rate of the communication line is not sufficient, the data transfer amount may be reduced by increasing the compression rate of the video to be transmitted.

[Second Embodiment]
Next, a system according to the second embodiment will be described with reference to FIGS. 5A and 5B. Hereinafter, description of the configuration common to the configuration of the first embodiment is omitted.

  FIG. 5A is a block diagram of a part of the controller 20 of the system 1 according to the second embodiment. The controller 20 includes a DMA controller 20e and a buffer memory 20g corresponding to one SD card reader 14a, and includes a DMA controller 20f and a buffer memory 20h corresponding to the other SD card reader 14b. The buffer memories 20g and 20h temporarily store images to be recorded on the SD cards 22a and 22b, respectively.

  The CPU 20a has a function of transferring a video in the buffer memory 20g to the SD card 22a by writing a video to be recorded on the SD card 22a to the buffer memory 20g and then giving a command to the DMA controller 20e. Similarly, the CPU 20a writes a video to be recorded on the other SD card 22b to the buffer memory 20h, and then gives a command to the DMA controller 20f to transfer the video in the buffer memory 20h to the SD card 22b. Have.

  FIG. 5B is a timing chart showing the timing for transferring video to the SD cards 22a and 22b. The controller 20 acquires video A to video E from the camera 17 in time series. Each of video A to video E is a data transfer unit by DMA.

  After writing the video A into the buffer memory 20g, the CPU 20a gives a command to the DMA controller 20e (time t1) and starts transferring the video A to the SD card 22a. In parallel, the CPU 20a writes the video B to the buffer memory 20h. Before the transfer of video A ends (time t3), the CPU 20a gives a command to the DMA controller 20f (time t2), and starts transfer of video B to the SD card 22b. Thereafter, before the transfer of the video B is completed, the transfer of the video C is started.

  In the second embodiment, the two SD cards 22a and 22b record a short-time video in which temporally continuous video is divided into small pieces on the time axis, and the two SD cards 22a and 22b It plays a role of composing one video that is continuous in time as a set.

[Effect of the second embodiment]
Next, the excellent effect of the second embodiment will be described. For example, when the process of transferring the video in one buffer memory 20g to the SD card 22a is completed (t3 in FIG. 5B), the transfer of the video is completed even if untransferred video remains in the other buffer memory 20h. A new video can be buffered in the buffer memory 20g. In this way, the apparent transfer rate can be increased by distributing and writing one video to the two SD cards 22a and 22b. As a result, it is possible to record a high frame rate and high resolution video that cannot be written in time with the writing speed of one SD card. For example, an ultra-high-quality 8K moving image cannot be recorded in real time on a normal SD card because the writing speed of the SD card becomes a bottleneck. In the system according to the second embodiment, the bottleneck of the writing speed of the SD card can be eliminated.

[Modification of Second Embodiment]
Even when video is recorded in a distributed manner on the two SD cards 22a and 22b, if the bottleneck of the writing speed cannot be eliminated, it is preferable to use three or more SD cards.

  In the second embodiment, the buffer memories 20g and 20h are prepared for each of the SD card readers 14a and 14b. However, the memory space in one buffer memory is divided into an area for one SD card reader 14a and the other SD card. It may be divided into areas for the reader 14b.

[Third embodiment]
Next, a system according to a third embodiment will be described with reference to FIG. Hereinafter, description of the configuration common to the configurations of the above-described embodiments will be omitted.

  FIG. 6 is a flowchart of processing executed by the controller 20 of the system 1 according to the third embodiment. When the system is started by turning on the power of the vehicle, the controller 20 (FIG. 2) displays an image taken by the camera 17 (FIG. 2) and an SD card held in one SD card reader 14a. It records in 22a (step SA1).

  Next, the controller 20 determines whether or not the current vehicle position satisfies the alarm issuing condition (step SA2). For example, the controller 20 determines that the alarm issue condition is satisfied when the distance from the current vehicle position to the radar speed control machine is equal to or less than the determination threshold. For example, 500 m, 1 km or the like may be employed as the determination threshold.

  If the controller 20 determines that the alarm issue condition is satisfied, the controller 20 combines the image captured by the camera 17 with the image representing the alarm information to generate a combined image (step SA3). Examples of alarm information include information indicating the distance to the radar-type speed control machine and information for alerting the driver such as information prompting the driver to reduce the speed. The controller 20 generates an image representing the alarm information. The controller 20 displays this composite image on the display 11 (step SA4). Thereafter, the composite image is recorded on the SD card 22b held by the SD card reader 14b (step SA5).

  FIG. 7A shows an example of an image displayed on the display 11. The controller 20 displays the composite image in the video display area 30. An image 34 indicating alarm information is combined with the video 33 captured by the camera 17. In the example shown in FIG. 7A, the image indicating the alarm information includes character information indicating that the distance from the own vehicle to the radar speed control machine is 500 m.

  If it is determined in step SA2 that the alarm issuing condition is not satisfied, the video image 33 captured by the camera 17 is displayed on the display 11 (step SA6). Thereafter, the video imaged by the camera 17 is recorded on the SD card 22b held in the SD card reader 14b (step SA7).

  FIG. 7B shows an example of the video 33 recorded on the SD card 22b. The video 33 is a video that has not been subjected to any image composition processing on the video captured by the camera 17. The video 33 recorded on the SD card 22b is not subjected to image synthesis processing, but may be subjected to video compression processing.

  After step SA5 or SA7, the controller 20 determines whether or not to end the process (step SA8). For example, when the power of the vehicle is turned off, it is determined to end the process. If the process is not terminated, the processes from step SA1 to step SA8 are repeated.

[Effect of the third embodiment]
Next, the excellent effect of the third embodiment will be described. The user can use the composite image for various purposes when checking the video recorded when the vehicle is running after running, and leave the unprocessed video as it is on the other storage medium. it can. At the time of video playback, the composite image and the raw video can be compared. The person in charge of vehicle management can confirm what kind of driving the driver has performed when an alarm is issued. With the unprocessed video, the situation around the vehicle at the time of alarm occurrence can be grasped in detail. Furthermore, since it can be inferred that the unprocessed video has not been tampered with, it is considered that the raw video has higher evidence ability than the composite image.

[Modification of the third embodiment]
The image to be superimposed on the video imaged by the camera 17 may be another image generated by a computer in addition to the image indicating the alarm information. The image generated by the computer may be an image displayed by the car navigation system, for example, a map around the current position of the vehicle when an alarm is issued. The image generated by the computer may be made translucent and superimposed on the video captured by the camera 17. When the image generated by the computer is made translucent, the image captured by the camera 17 can be confirmed without reproducing the raw image even in the overlapping portion.

  The alarm information may be superimposed on the video and recorded as an image, and the audio information may be recorded by issuing a sound for notifying the alarm. For example, it may be possible to output a voice message “500 meters up to H system. Set the speed to 60 km or less.” And record this voice information on the SD card 22b. For example, the voice picked up by the microphone in the vehicle may be recorded on the SD card 22a storing the raw video, and only the warning voice may be recorded on the SD card 22b recording the composite image.

[Fourth embodiment]
Next, a system 1 according to a fourth embodiment will be described with reference to FIGS. 8A, 8B, and 9. FIG. Hereinafter, description of the configuration common to the configurations of the above-described embodiments will be omitted.

  8A and 8B are conceptual diagrams of video frames recorded on the SD cards 22a and 22b, respectively. The controller 20 (FIG. 2) has a function of recording images captured by the camera 17 (FIG. 2) on the SD cards 22a and 22b with different frame rates (number of frames per unit time). For example, one SD card 22a records video at a frame rate of 30 fps, and the other SD card 22b records video at a frame rate of 5 fps.

  FIG. 9 shows an example of an image displayed on the display 11. The controller 20 (FIG. 2) displays in the mode display area 31 of the display 11 an image 37 indicating the frame rate as well as indicating that the video captured by the camera 17 is recorded on the SD cards 22a and 22b. In the icon 37, the frame rates are displayed numerically in two rows. The numerical value of the frame rate displayed in the upper row indicates the frame rate of the video recorded on the SD card 22b that is attached / detached through the upper SD card insertion slot 10b (FIG. 1A), and the numerical value of the frame rate displayed in the lower portion. These show the frame rate of the image | video recorded on SD card 22a attached or detached through the lower SD card insertion slot 10a (FIG. 1A). The display 11 functions as a notification means for notifying the user that the SD cards 22a and 22b are responsible for recording video at frame rates of 30 fps and 5 fps, respectively.

[Effect of the fourth embodiment]
Next, the excellent effect of the fourth embodiment will be described. The SD card 22b that is recorded under a recording condition with a low frame rate can be used for long-time recording, and the SD card 22a that is recorded with a recording condition with a high frame rate is used for recording recorded video. It can be used for more detailed analysis. The user can easily determine which one of the SD card readers 14a and 14b should view the SD card image by looking at the icon 37 displayed on the display 11 according to the purpose of use of the image. it can.

  The SD card 22b for long-time recording has a longer life because the number of rewrites is smaller than that of the SD card 22a for detailed analysis. For example, even if the video is not recorded because the SD card 22a for detailed analysis has expired, the video remains on the SD card 22b for long-time recording. In addition, the probability that the two SD cards 22a and 22b reach the end of their lives at the same time is low. For this reason, even if one of the SD cards 22a and 22b reaches the end of its life, the video is normally recorded on the other, and there is a situation in which no video remains on either of the SD cards 22a and 22b. There is hardly anything.

[Modification of Fourth Embodiment]
In the fourth embodiment, the frame rates of the videos recorded on the SD cards 22a and 22b are varied. However, the recording conditions other than the frame rate, for example, the resolutions may be varied. Further, both the frame rate and the resolution may be different. The resolution of the video recorded on the SD card 22b for long time recording may be lower than the resolution of the video recorded on the SD card 22a for detailed analysis. By setting the resolution in this way, the recordable time of the SD card 22b can be made longer. When the resolutions of the images recorded on the SD cards 22a and 22b are different, the controller 20 may display character information indicating the resolution on the display 11.

[Fifth embodiment]
Next, a system according to a fifth embodiment will be described with reference to FIG. Hereinafter, description of the configuration common to the configurations of the above-described embodiments will be omitted.

  The controller 20 (FIG. 2) of the system 1 according to the fifth embodiment uses the same recording conditions for both the SD cards 22a and 22b held in the SD card readers 14a and 14b, respectively. With the ability to record in real time. When the same video is recorded on both the SD cards 22a and 22b, the controller 20 writes identification information (pairing information) for linking the two to the SD cards 22a and 22b. The two SD cards 22a and 22b record the same video and play a role of backing up each other.

  The controller 20 informs the user that the same video is recorded on the two SD cards 22a and 22b and plays a role of backing up each other. For example, the controller 20 displays information indicating that the same video is recorded on the two SD cards 22a and 22b and plays a role of backing up each other on the display 11 as an image or text.

  FIG. 10 is a flowchart of processing executed by the controller 20. When the system 1 is started by turning on the vehicle, the controller 20 determines whether or not the SD cards 22a and 22b are mounted on both the SD card readers 14a and 14b (step SB01). .

  When the SD card is attached only to one of the SD card readers 14a and 14b, the controller 20 determines whether to record video on only one SD card or on two SD cards. Let the user select (step SB02). For example, the controller 20 displays a message on the display 11 that prompts the user to select whether to record video on only one SD card or to record video on two SD cards. The user can select whether to record video on only one SD card or on two SD cards by operating the operation buttons 12 (FIGS. 1A and 2). . In addition, after removing the SD card attached to one of the SD card readers 14a and 14b, it may be attached to a different one of the SD card readers 14a and 14b.

  If the user chooses to record video on two SD cards, the controller 20 displays a message on the display 11 prompting the other SD card in the pair to be installed in an empty SD card reader. Then, it waits until the SD card is inserted (step SB03).

  When the controller 20 detects that an SD card is inserted into an empty SD card reader, the controller 20 determines whether or not the SD cards 22a and 22b attached to the two SD card readers 14a and 14b are inconsistent (step). SB04). For example, the controller 20 reads the identification information written in the two SD cards 22a and 22b, and determines whether or not the two have a paired relationship. If the two have a paired relationship, it is determined whether or not the images recorded on the two SD cards 22a and 22b are the same. For example, it is possible to determine whether or not the images are the same by comparing the capacities of the images recorded on the two SD cards 22a and 22b and the recording date and time.

  When the two SD cards 22a and 22b have a paired relationship and the images are the same, the controller 20 determines that there is no mismatch between the two SD cards 22a and 22b. In other cases, it is determined that there is a mismatch.

  When it is determined that there is a mismatch between the two SD cards 22a and 22b, the controller 20 allows the user to select which video of the SD cards 22a and 22b is left (step SB05). For example, the controller 20 displays a message on the display 11 for selecting which one of the SD card readers 14a and 14b to leave the image of the SD card attached. By operating the operation button 12 or the like, the user can select one of the SD card readers 14a and 14b to which the SD card to which video is to be attached is attached.

  When the user selects the SD card reader 14a, the controller 20 erases the video of the SD card 22b attached to the SD card reader 14b that has not been selected, and copies the video of the SD card 22a to the SD card 22b (step). SB06). When the identification information between the SD card 22a and the SD card 22b is different, the identification information of the SD card 22b is matched with the identification information of the SD card 22a.

  When the user selects the SD card reader 14b, the controller 20 erases the video of the SD card 22a mounted on the SD card reader 14a that has not been selected, and copies the video of the SD card 22b to the SD card 22a (step). SB07). When the identification information between the SD card 22a and the SD card 22b is different, the identification information of the SD card 22a is matched with the identification information of the SD card 22b.

  When the process of step SB06 or step SB07 ends, the process of recording the video imaged by the camera 17 on the two SD cards 22a and 22b is started (step SB08).

  If it is determined in step SB04 that there is no mismatch between the two SD cards 22a and 22b, the controller 20 starts a process of recording on the two SD cards 22a and 22b (step SB08).

  If it is determined in step SB01 that two SD cards are mounted, the controller 20 executes the process of step SB04 without executing the processes of step SB02 and step SB03.

  If the user selects to record video on only one SD card in step SB02, whether or not to erase the video recorded on the SD card attached to one of the SD card readers 14a and 14b. Is selected by the user (step SB10). For example, the controller 20 displays a message on the display 11 asking whether or not to delete the video. The user can select whether to delete the video by operating the operation button 12 or the like.

  When the user selects to delete the video, the controller 20 deletes the video in the installed SD card (step SB11). After erasing the video, the controller 20 starts a process of recording the video taken by the camera 17 on one SD card (step SB12). When the user selects not to delete the video, the controller 20 starts a process of recording the video captured by the camera 17 on one SD card without deleting the video (step SB12).

[Effect of the fifth embodiment]
Next, the excellent effect of the fifth embodiment will be described. When video is recorded in real time on the two SD cards 22a and 22b in step SB08, even if a write error occurs in one of the SD cards 22a and 22b, the video can be normally recorded on the other SD card. . For this reason, it is possible to avoid a situation in which no video remains. It is possible to remove the SD card of only one of the SD card readers 14a and 14b and play the video on another device such as a personal computer.

  Even if the video of one sector of the SD cards 22a and 22b cannot be read, the video can be reproduced by reading the content of the other sector where the same video is recorded.

  The user can know that the two SD cards 22a and 22b are paired by looking at the display 11 on which information representing the role of the SD card is displayed.

  Furthermore, the user can recognize that there is another SD card that is paired with one currently installed SD card by looking at the information displayed on the display 11 in step SB02. Thereby, forgetting to insert the SD card can be prevented. If no other SD card is found at hand, the user can cause the system 1 to record video by selecting recording on only one SD card in step SB02. .

  Since the controller 20 determines the consistency of the two SD cards 22a and 22b in step SB04, the consistency of the two SD cards 22a and 22b that are paired can be maintained.

[Sixth embodiment]
Next, a system 1 according to a sixth embodiment will be described with reference to FIGS. 11, 12A, and 12B. Hereinafter, description of the configuration common to the configurations of the above-described embodiments will be omitted. The system 1 according to the sixth embodiment records video on one of the two SD cards 22a and 22b, and if a verification error occurs during video recording on one SD card, the video recording destination SD is recorded. It has a function of switching video cards and recording video on the other SD card.

  FIG. 11 is a flowchart of processing executed by the controller 20 (FIG. 2) of the system 1 according to the sixth embodiment. When the vehicle is turned on and the system 1 is activated, the controller 20 activates one of the SD cards 22a and 22b attached to the SD card readers 14a and 14b (FIG. 2), and the other A standby state is set (step SC1). The controller 20 displays on the display 11 an image that informs the user of the SD card reader in which the SD card in the operating state is mounted (step SC2). Thereafter, the controller 20 writes the video imaged by the camera 17 (FIG. 2) on the SD card in the operating state (step SC3).

  After the video is written, the controller 20 determines whether or not the system operation is finished (step SC4). For example, when the power of the vehicle is turned off, it is determined that the operation of the system 1 is finished. If the operation of the system 1 is not complete, the controller 20 determines whether or not a verify error has occurred when writing to the SD card (step SC5). For example, when an acknowledgment (ACK) signal is returned when video is written to the SD card, it is determined that a verification error has not occurred, and when a negative response (NAK) signal is returned, it is determined that a verification error has occurred. Good. The determination of whether or not a verify error has occurred may be performed for each DMA transfer, for example. If a verify error has not occurred, a new video is written to the operating SC card (step SC3).

  If a verify error has occurred, the controller 20 puts the SD card in the standby state into the standby state, and puts the standby SD card into the operation state (step SC6). After switching the state of the SD card, the controller 20 displays an image on the display 11 informing the user of the SD card reader in which the SD card in the operating state is mounted (step SC7), and a verify error occurs. Then, the video that could not be normally written is written to the SD card that has been newly activated (step SC8). Thereafter, a new video is written to the SD card in the operating state (step SC3).

  FIG. 12A shows an example of an image displayed on the display 11 by the controller 20 when the SD card 22a attached to one SD card reader 14a is in an operating state. FIG. 12B shows an example of an image displayed on the display 11 by the controller 20 when the SD card 22b attached to the other SD card reader 14b is in an operating state. The controller 20 (FIG. 2) displays in the mode display area 31 an icon 38 indicating an SD card reader in which the SD card set to the operation state is mounted. The icon 38 is a graphic that indicates the SD card set in the operating state and can notify the user that two SD cards are paired and record one video. In FIG. 12A, the figure indicating the SD card 22a in the operating state is indicated by a white outline with a thick outline, and the figure indicating the SD card 22b in the standby state is indicated in gray. Further, two figures indicating the SD cards 22a and 22b are surrounded by a broken line. By making the two figures indicating the SD cards 22a and 22b into a figure that surrounds with a polygonal line, the user can recognize that the two SD cards 22a and 22b are paired.

[Effect of the sixth embodiment]
Next, the excellent effect of the sixth embodiment will be described. A video that cannot be written due to a verify error during writing to one SD card can be written to the other SD card. In this way, the SD cards 22a and 22b held by the two SD card readers 14a and 14b complement each other even if a verification error occurs in one of the SD cards when recording video. Plays the role of recording video.

  If the cause of the verify error is temporary, there is a possibility that the video can be normally recorded on the SD card where the verify error has occurred once. Therefore, after a verify error has occurred and the SD card in the operating state is changed, if a verify error occurs even in the SD card newly in the operating state, the original SD card is set in the operating state again. As a result, it is possible to reduce the frequency of occurrence of a situation in which video cannot be recorded as a whole.

[Modification of the sixth embodiment]
For example, the controller 20 displays on the display 11 that one video is recorded on the SD cards 22a and 22b respectively held by the two SD card readers 14a and 14b. The user should be notified by The user notices that two SD cards 22a and 22b are necessary to reproduce temporally continuous video. When playing back video on an external device, the user can recognize that the two SD cards 22a and 22b need to be removed from the SD card readers 14a and 14b and attached to the external device.

  When determining whether or not a verify error has occurred (step SC5), the video recorded on the SD card may be read to check data consistency. It is also possible to read the written video and perform a CRC check.

[Seventh embodiment]
Next, a system 1 according to a seventh embodiment will be described with reference to FIG. Hereinafter, description of the configuration common to the configurations of the above-described embodiments will be omitted.

  The controller 20 has a function of recording video in a general-purpose file format on an SD card held in one SD card reader and recording video in an original format on the SD card held in the other SD card reader. Have. As a general-purpose file format, for example, an avi file format can be adopted. Video compression techniques include MPEG2, Motion JPEG, H.264. H.264, H.C. 265 or the like may be applied. As a unique file format format, for example, a format format called YP format format can be adopted.

  The SD card held in one SD card reader plays a role of recording video in a general-purpose file format format, and the SD card held in the other SD card reader records video in a unique file format format. Take a role.

  The controller 20 displays, for example, an SD card reader that holds an SD card that records video in a general-purpose file format format, and an image that informs the user of an SD card reader that holds an SD card that records video in a unique file format format. 11 is displayed.

  FIG. 13 shows an example of an image displayed on the display 11 by the controller 20. The controller 20 displays in the mode display area 31 of the display 11 an icon 39 indicating the format format of the SD cards 22a and 22b held in the SD card readers 14a and 14b, respectively. For example, a letter “avi” is displayed on the right side of the icon indicating the SD card 22a, and a letter “YP” is displayed on the right side of the icon indicating the SD card 22b. Further, the icon 39 has a graphic that can notify the user that the images recorded on the two SD cards 22a and 22b are the same. For example, a straight line extending from the icon indicating the camera 17 branches into two, the branched straight lines extend toward two icons indicating two SD cards 22a and 22b, respectively, and an arrow is attached to each tip. Has been.

[Effect of the seventh embodiment]
Next, the excellent effect of the seventh embodiment will be described. The SD card 22a on which video is recorded in a general-purpose file format can be removed from the SD card reader 14a and can be played back by a general playback device such as a general-purpose media player of a personal computer. The SD card 22b on which video is recorded in a unique format can be removed from the SD card reader 14b and reproduced using dedicated application software.

  The user recognizes that the video captured by the camera 17 is recorded on both the SD cards 22a and 22b by looking at the two arrows directed to the two icons 39 indicating the SD cards 22a and 22b. it can. Further, the user can know the format of the two SD cards 22a and 22b by looking at the characters displayed on the right side of the icon 39 indicating the SD cards 22a and 22b.

  Since the SD card 22b in which video is recorded in a unique format cannot be reproduced or rewritten on a general personal computer or the like, the confidentiality and safety of the video can be improved.

[Eighth embodiment]
Next, a system according to an eighth embodiment will be described with reference to FIG. Hereinafter, description of the configuration common to the configurations of the above-described embodiments will be omitted. In the above-described embodiments, the SD card is adopted as the removable storage medium. However, in the eighth embodiment, two kinds of storage media having different standard values of the maximum writing speed are adopted. For example, an XQD card can be adopted as one of the storage media with a fast maximum writing speed, and an SD card can be adopted as a storage medium with a slow maximum writing speed.

  A medium accommodating portion is provided for each of the two types of storage media. For example, one of the two medium storage units can be an XQD card reader and the other can be an SD card reader. The maximum writing speed of the interface standard supported by the XQD card reader is faster than the maximum writing speed of the interface standard supported by the SD card reader.

  The controller 20 writes the video imaged by the camera 17 in real time to the XQD card held in the XQD card reader that supports the interface standard with the higher maximum writing speed. The controller 20 has a function of copying the video written in real time on the XQD card to the SD card held in the SD card reader according to a command from the user.

  Further, the controller 20 displays an image on the display 11 indicating that one medium accommodating portion is an XQD card reader and the other medium accommodating portion is an SD card reader.

  FIG. 14 shows an example of an image displayed on the display 11 by the controller 20. The controller 20 displays an icon 40 indicating the interface standard of the medium storage unit in the mode display area 31. The icon 40 also has a function of notifying the role played by the XQD card and the SD card held by the XQD card reader and the SD card reader. For example, the icon 40 indicates that the video imaged by the camera 17 is recorded in real time on the XQD card, and the video image recorded on the XQD card is copied to the SD card.

[Effect of the eighth embodiment]
Next, the excellent effect of the eighth embodiment will be described. Compared to the case of recording video in real time on an SD card having a slow maximum writing speed, it becomes possible to record video with a high frame rate and high resolution in real time on the XQD card. When the video recorded on the XQD card is copied to another SD card, a high writing speed is not required for the copy destination SD card. In general, the SD card with the slower writing speed is cheaper than the XQD card. Thereby, the same image can be copied to a plurality of low-cost SD cards and used for distribution.

[Modification of Eighth Embodiment]
A removable medium other than the XQD card may be used as a storage medium with a higher maximum writing speed, and a removable medium other than an SD card may be used as a storage medium with a lower maximum writing speed.

  The controller 20 may have a function of making a copy reservation by designating a copy start time for copying the video recorded on the XQD card. The user can designate the time zone when the vehicle is not used and copy the video.

  The XQD card may be recorded with an image captured by the camera 17 during a period from when the vehicle power is turned on to when it is turned off (hereinafter referred to as constant recording). In addition, videos before and after the time point when the occurrence of a predetermined event is detected may be recorded (hereinafter referred to as event recording). It is particularly good to perform both continuous recording and event recording.

  The controller 20 may have a function of allowing the user to select a video to be copied from the video recorded as an event on the XQD card.

  FIG. 15 shows an example of an image displayed on the display 11 when the user selects a copy source video. The controller 20 displays the event occurrence date and time of the video recorded on the XQD card and the thumbnail image of the video at the time of the event in the video display area 30 and prompts the user to select the copy source video. Is displayed. The user can select the video to be copied by operating the operation button 12. The controller 20 copies the selected video from the XQD card to the SD card.

  In order to copy all the images recorded at all times, a long copy time is required. The user can select and copy only a desired video, thereby reducing unnecessary copy time.

[Ninth Embodiment]
Next, a system 1 according to a ninth embodiment will be described with reference to FIGS. 16A and 16B. Hereinafter, description of the configuration common to the configurations of the above-described embodiments will be omitted.

  FIG. 16A is a functional block diagram of a part of the system 1 according to the ninth embodiment. At least one of the SD card readers 14a and 14b of the system 1 according to the ninth embodiment, for example, the SD card reader 14b, supports an interface standard with the SDIO card 22c having a wireless communication function. As the SDIO card 22c, for example, a card having a WiFi standard communication function, a card having a mobile communication system standard communication function, a card having a transfer jet standard communication function, or the like can be used.

  The controller 20 has a function of causing the SDIO card 22c to transmit video captured by the camera 17 (FIG. 2) to an external device, and a function of reading video from the SD card 22a and transmitting the read video.

  FIG. 16B shows an example of an image displayed on the display 11 by the controller 20 when the SDIO card 22c having a wireless communication function is attached to the SD card reader 14b. The controller 20 displays icons 41a and 41b representing the SD card 22a and the SDIO card 22c attached to the SD card readers 14a and 14b in the mode display area 31. The icon representing the SDIO card 22c having the wireless communication function includes an antenna figure for notifying that the wireless communication function is provided.

[Effect of the ninth embodiment]
Next, the excellent effect of the ninth embodiment will be described. The system 1 according to the ninth embodiment can wirelessly transmit an image captured by the camera 17 to an external device via the SDIO card 22c having a wireless communication function. Accordingly, the user can play back the video recorded on the SD card 22a on the external device without removing the SD card 22a from the SD card reader 14a.

  By viewing the image displayed on the display 11, the user knows that the SDIO card 22c attached to one SD card reader 14b has a wireless communication function and plays a role of transmitting video wirelessly. be able to. It can be known that the SD card 22a attached to the other SD card reader 14a plays a role of recording video.

[Modification of Ninth Embodiment]
The SDIO card 22c may have a function of recording video in addition to the wireless communication function. The video recorded on the SDIO card 22c can be transmitted to an external device using a wireless communication function of the SDIO card 22c in response to a command from the controller 20. For example, the controller 20 may read the video from the SDIO card 22c, and transmit the read video from the SDIO card 22c. In addition, it is particularly preferable that the controller 20 autonomously transmits a video by giving a transmission command to the SDIO card 22c.

  It is further preferable that both of the two SD card readers 14a and 14b support an interface standard with an SDIO card having a wireless communication function. For example, while recording an image on an SDIO card held on one SDIO card reader, an image already recorded on the SDIO card held on the other SD card reader is displayed on the SDIO card reader. It can be transmitted using a communication function.

  As the SDIO card, a card compatible with a proximity wireless transfer technology standard such as a transfer jet may be used. When the SDIO card compliant with the proximity wireless transfer technology standard is held in the SD card reader, the user removes the system 1 (FIGS. 1A and 1B) from the vehicle and moves it closer to the parent device, thereby transferring the image to the parent device. be able to. The SD card reader that supports the interface standard with the SDIO card compatible with the proximity wireless transfer technology standard is preferably disposed closer to the wall of the housing than the other SD card reader so as not to interfere with the proximity wireless transfer. .

[Tenth embodiment]
Next, a system 1 according to a tenth embodiment will be described with reference to FIG. Hereinafter, description of the configuration common to the configurations of the above-described embodiments will be omitted.

  The controller 20 records a video imaged by the camera 17 from the time when the vehicle power is turned on to the time when the vehicle is turned off (hereinafter referred to as “always recording”). A function of recording a video of a predetermined period including a time point when a predetermined event occurs (hereinafter referred to as event recording), and a video captured by the camera 17 during a period in which the vehicle is turned off (hereinafter referred to as “event recording”). It has a function of parking monitoring recording) and a log data (hereinafter referred to as log data recording) in which information relating to vehicle travel is arranged in time series.

  As the predetermined event, for example, detection of an impact having a magnitude greater than or equal to a threshold value by the acceleration sensor 18 can be cited. The log data may include, for example, GPS information (vehicle position information), speed information, acceleration information, information indicating the operation status of the vehicle, a trajectory of vehicle movement, and the like. The operation status of the vehicle may include, for example, an operation status such as whether or not the brake is stepped on and whether or not the direction indicator is released. These pieces of information can be acquired from various sensors and OBD connectors mounted on the vehicle.

  The recording destination of the continuous recording, event recording, parking monitoring recording, and log data recording is set to either the SD card 22a held by the SD card reader 14a or the SD card 22b held by the SD card reader 14b. ing. The controller 20 has a function of notifying the user of which SD card reader holds these recording destinations.

  FIG. 17 shows an example of an image displayed on the display 11 by the controller 20 in order to inform the user of the recording destination. The user can display the image shown in FIG. 17 by operating the operation button 12.

  The controller 20 displays the outline of the system 1 and the SD card insertion openings 10a and 10b in the image display area 30 in a graphic form, and the positions of the SD card insertion openings 10a and 10b and the SD card insertion openings 10a and 10b. A chart showing the correspondence with the contents recorded on the SD cards 22a and 22b is displayed. From the image shown in FIG. 17, the user always performs recording on the SD card 22a inserted into the lower SD card insertion slot 10a, and the event recording, parking monitoring recording, and log data recording are performed on the upper side. It can be recognized that the process is performed on the SD card 22b inserted into the SD card insertion slot 10b.

[Effect of the tenth embodiment]
Next, an excellent effect of the tenth embodiment will be described. In the tenth embodiment, the recording capacity as a whole increases as compared to the case where all of the constant recording, event recording, parking monitoring recording, and log data recording are recorded on one SD card. As a result, the time that can always be recorded or the time that can be parked and monitored becomes longer, the number of events that can be recorded by the event increases, and the amount of log data that can be recorded increases. In continuous recording or parking monitoring recording, when the SD card runs out of space, when the old video is overwritten with a new video, the number of overwriting can be reduced. Thereby, the life of the SD card can be extended.

  The user may prepare an SD card having an appropriate recording capacity according to the capacity of the recorded video.

  The user can remove only the SD card on which the desired video is recorded from the SD card reader and play it back on an external device. For example, when it is desired to view a video when an event occurs, only the SD card 22b for event recording may be removed from the SD card reader 14b. By viewing the image (FIG. 17) displayed on the display 11, the user can easily know which SD card to remove.

  When the system 1 is used for business purposes, for example, the operation manager may cause the driver to submit only the SD card 22b recorded as an event. For the operation manager, it is possible to obtain an effect that the amount of images to be confirmed is reduced as compared with the case where all the recorded images are confirmed. Also, the number of SD cards to be submitted to the operation manager is reduced by recording only the information necessary for the operation manager on one SD card and recording the less necessary information on the other SD card. Can do. This facilitates operation management.

[Modification of Tenth Embodiment]
In the tenth embodiment, the controller 20 has a function of performing continuous recording, event recording, parking monitoring recording, and log data recording. However, the controller 20 has a function of performing continuous recording and event recording, or parking monitoring recording. And event recording may be provided. At this time, the SD card that performs constant recording or parking monitoring recording may be different from the SD card that performs event recording. It is preferable to overwrite the SD card that performs constant recording or parking monitoring recording and not to overwrite the SD card that performs event recording.

  For example, an SD card for event recording does not require as much capacity as an SD card for constant recording or parking monitoring recording. Therefore, a relatively large capacity SD card for constant recording or parking monitoring recording is prepared, and the SD card for event recording has a capacity larger than that of the SD card for constant recording or parking monitoring recording. Just prepare a small one. Thereby, the cost required for the SD card can be reduced.

  The parking monitoring record is good to record images taken over the entire period of parking with the vehicle turned off, especially when recording some images including the time when a predetermined event occurred during parking. Good. Events include, for example, detection of motion occurrence (motion detection) within a captured image, detection of vehicle vibration, detection of loud sound, detection of opening of a vehicle window, detection of opening of a vehicle door, etc. Good. By recording a part of the video including the time when the event occurs in the storage medium for parking monitoring recording, it is possible to reduce the capacity consumption of the SD card for parking monitoring recording.

  Recording may be always performed on one SD card and log data may be recorded on the other SD card. The operation manager can evaluate the driving at the time of video acquisition by associating the video stored in one SD card with the log data. The driver looks at the image (FIG. 17) displayed on the display 11, for example, the position of the SD card insertion slot for inserting the SD card for recording the video and the SD for inserting the SD card for recording the log data. You can know the position of the card slot.

  In the tenth embodiment, the correspondence relationship between the regular recording, event recording, parking monitoring recording, and log data recording and the SD card is fixed, but this correspondence relationship may be changed by the user. For example, the correspondence may be changed by the user operating the operation button 12 while viewing the image on the display 11 shown in FIG.

  The system 1 may have three SD card readers for mounting the SD card for constant recording, the SD card for event recording, and the SD card for parking monitoring recording. By dividing the SD card for each application, a plurality of SD cards can be submitted to an administrator who needs them.

[Eleventh embodiment]
Next, a system 1 according to an eleventh embodiment will be described with reference to FIG. 18A. Hereinafter, description of the configuration common to the configurations of the above-described embodiments will be omitted.

  The controller 20 of the system according to the eleventh embodiment records videos before and after the occurrence of a specific event (referred to as a first type event) on one SD card, and is different from the first type of event. Has a function of recording images before and after the occurrence of the event (referred to as a second type event) on the other SD card. Information defining the first type event and the second type event may be stored in the controller 20 in advance, for example.

  The controller 20 displays a correspondence relationship between the specific event and the SD card that records the video when the event occurs on the display 11.

  FIG. 18A shows an image on the display 11 on which the correspondence between the event and the recording destination SD card is displayed. The user can display the image shown in FIG. 18A by operating the operation button 12.

  The controller 20 displays the outline of the system 1 and the SD card insertion openings 10a and 10b in the image display area 30 in a graphic form, and the positions of the SD card insertion openings 10a and 10b and the SD card insertion openings 10a and 10b. A chart showing the correspondence with events that trigger recording on the SD cards 22a and 22b is displayed.

  Sudden steering, sudden braking, sudden acceleration, etc. are mainly based on the driver's own driving ability and driving attitude. The occurrence of the collision is considered to be caused by the traveling of other vehicles regardless of the driving ability and driving attitude of the driver. Thus, as in the example shown in FIG. 18A, the SD card 22a that records video when an event that is considered to be caused by a person other than the driver occurs, and an event that is considered to be caused mainly by the driver. The SD card 22b that records the video when this occurs may be different.

[Effect of the eleventh embodiment]
Next, the excellent effect of the eleventh embodiment will be described. From the image shown in FIG. 18A, the user records the video at the time of the collision on the SD card 22a inserted into the lower SD card insertion slot 10a, and the video at the time of sudden steering, sudden braking, and sudden acceleration. Is recorded on the SD card 22b inserted in the upper SD card insertion slot 10b.

  An image when an event (for example, sudden steering, sudden braking, sudden acceleration, etc.) that is considered to be caused by the driver's driving skill or driving attitude can be used to educate the driver. When the operation manager requests the driver to take out and submit the SD card 22b in which the video at the time of sudden steering, sudden braking and sudden acceleration is recorded from the system 1, the driver is displayed on the display 11. From this image, it can be easily determined which SD card insertion slot should be taken out.

[Modification of the eleventh embodiment]
FIG. 18B shows an example of an image displayed on the display 11 by the controller 20 of the system according to the modification of the eleventh embodiment. In this modified example, if an event occurs when the legal speed is observed, the controller 20 records the images before and after that on one SD card 22a, and if the event occurs when the legal speed is exceeded. The images before and after are recorded on the other SD card 22b. The controller 20 displays a correspondence relationship between the generated event and the SD card on which the video is to be recorded on the display 11. The legal speed of the currently traveling route can be obtained from road signs, map data, and the like.

  The user can easily compare the video when the legal speed is exceeded with the video when the legal speed is observed.

[Twelfth embodiment]
Next, a system 1 according to a twelfth embodiment will be described with reference to FIGS. 19A and 19B. Hereinafter, description of the configuration common to the configurations of the above-described embodiments will be omitted.

  In the twelfth embodiment, an event condition, which is a condition for determining that a predetermined event has occurred, is stored in the SD card held in one SD card reader. The controller 20 reads the event condition from the SD card, records the video captured by the camera 17 on the SD card held by the other SD card reader, and detects the occurrence of an event that satisfies the read event condition. Then, it has a function of recording a mark indicating that an event has occurred in association with a video.

  The controller 20 displays an image on the display 11 for informing the user of the SD card reader to which the SD card storing the event condition is attached and the SD card reader to which the SD card for recording the video is attached.

  FIG. 19A shows an example of an image displayed on the display 11. An icon 42a indicating the SD card 22a in which video captured by the camera 17 is recorded, and an icon 42b indicating the SD card 22b storing event conditions are displayed in the mode display area 31. For example, an arrow from the icon indicating the camera 17 to the icon indicating the SD card 22a is displayed, and an exclamation point surrounded by a circle is displayed in the middle of the arrow, and the SD card 22b is placed near the exclamation mark. An icon 42b is displayed. An arrow from the icon indicating the camera 17 to the icon indicating the SD card 22a indicates that an image captured by the camera 17 is recorded on the SD card 22a. An exclamation point indicated on the arrow and an icon 42b indicating the SD card 22b indicate that the event condition is stored in the SD card 22b.

  FIG. 19B shows a frame sequence of video recorded on the SD card 22a. A mark 43 indicating that an event has occurred is recorded corresponding to the frame imaged when the event occurred among the plurality of frames. The mark 43 includes information for identifying which event has occurred.

[Effect of the twelfth embodiment]
Next, the excellent effect of the twelfth embodiment will be described. The user can find out the video to be confirmed or verified in a short time with reference to the mark 43 recorded on the SD card 22a on which the video is recorded. As a result, useful video can be extracted from an enormous amount of video and the video can be used effectively. Since the user has only to store the event condition to be confirmed or verified in the SD card 22b, the event condition can be easily added or deleted.

  The user looks at the image displayed on the display 11 and can analogize that the video captured by the camera 17 is recorded on the SD card 22a and the event condition is stored on the SD card 22b. Thus, the user can know the SD card reader 14b to which the SD card 22b storing the event conditions should be attached and the SD card reader 14a to which the SD card 22a for recording video should be attached.

  The event condition may include a condition for detecting the occurrence of an event that may occur due to, for example, driver fatigue or carelessness. For example, the event conditions include deviation from the driving lane, abnormal approach to the previous vehicle, occurrence of a certain amount of time, lateral blurring, slipping, etc. while the host vehicle is stopped even though the previous vehicle has started. be able to. The occurrence of these events can be detected by installing an advanced driving assistance system (ADAS) on the vehicle. The operation manager can make the driver aware of the degree of danger by showing the image of the event occurrence to the driver, which can lead to safe driving.

  The event condition may include, for example, a condition that a specific person or a specific vehicle exists in the captured video. An image of a specific person or a specific vehicle number to be detected is stored in the SD card 22b as a template image, and the controller 20 may detect the specific person or vehicle using an image authentication technique. When the controller 20 detects a specific person or vehicle, the controller 20 may transmit position information of the detected location, an image at the time of detection, and the like to a data center (for example, a police server). The information sent to the data center provides useful clues to find the person or vehicle that is being arranged.

  The event condition may include, for example, detection of a vehicle (dangerous vehicle) that is moving unsafely or dangerously. The disturbing or dangerous movement may include, for example, meandering, ignoring signals, overspeeding, etc. When detecting the dangerous vehicle, the controller 20 may transmit the position information of the detected location, the video at the time of detection, and the like to a data center (for example, a police server). By sharing the existence of a dangerous vehicle among the drivers of a plurality of vehicles, it is possible to prevent an accident caused by the dangerous vehicle from occurring. The driver of the dangerous vehicle can be instructed not to perform dangerous driving.

  The event condition may include detection of a person taking a specific posture, detection of a pedestrian of a specific age, detection of a bicycle, detection of a specific traffic sign, and the like. It is possible to easily confirm or verify what kind of driving the driver has performed when these events occur. For example, as a person taking a specific posture, a person raising his hand, a person holding a selfie stick, etc. may be included. When a person raising his / her hand is detected, for example, it can be verified by video whether or not the driver has paused. When a person holding a selfie stick is detected, it can be verified whether the driver has slowed down. Children or old people may be included as pedestrians of a specific age. When a child or an elderly person is detected as a pedestrian, it can be verified, for example, whether or not the driver has slowed down. When various traffic signs are detected, it is possible to verify, for example, whether or not the driver complies with traffic rules.

[Thirteenth embodiment]
Next, a system according to a thirteenth embodiment will be described with reference to FIGS. Hereinafter, description of the configuration common to the configurations of the above-described embodiments will be omitted.

  In the thirteenth embodiment, at least one recording condition of frame rate and resolution is stored in the SD card 22a held in the SD card reader 14a. The controller 20 has a function of reading a recording condition stored in the SD card 22a and recording a video based on the read recording condition.

  The controller 20 displays the recording conditions stored in the SD card 22a on the display 11, thereby informing the user of the recording conditions under which the video is recorded.

  FIG. 20 shows an example of an image displayed on the display 11. An icon 53a indicating the SD card 22a and an icon 53b indicating the SD card 22b are displayed in the mode display area 31. For example, the character displayed on the right side of the icon 53a indicates that the recording condition “frame rate 30 fps” is stored in the SD card 22a. A downward triangle symbol displayed on the right side of the icon 53b indicates that video is recorded on the SD card 22b at the same frame rate as that of the SD card 22a.

  Recording conditions stored in the SD card 22a can be set by an external device such as a personal computer.

  FIG. 21 shows an example of a setting window when recording conditions are set on an SD card using a personal computer. The recording method selection box allows the user to select one mode from a mode in which only continuous recording is performed, a mode in which both continuous recording and event recording are performed, and a mode in which only event recording is performed.

  The image shown in FIG. 21 shows an example in which a sub camera can be connected in addition to the camera (main camera) 17 built in the system 1, but in the thirteenth embodiment, no sub camera is connected. An example will be described. The user can select the resolution of the main camera, the number of recorded frames (frame rate), and the number of event recorded frames from the pull-down menu. Furthermore, the user can select an event recording time, audio recording presence / absence, history recording time, and history recording frame number from a pull-down menu. Furthermore, the user can select whether or not to perform overwriting when there is no more free space in the recording area for constant recording, event recording, and history recording.

  Further, the user can select whether or not to perform event recording based on the measurement value of the acceleration sensor (G sensor) 18 and whether or not to perform event recording based on the measurement value of the gyro sensor. Furthermore, it is possible to set the magnitude of the measurement value determined to perform event recording.

  A “Save to SD card” button is displayed in the setting window displayed on the screen of the personal computer. When the user selects (for example, clicks, taps, etc.) the “save to SD card” button with the pointing device, the recording conditions set in the setting window are stored in the SD card.

[Effect of the thirteenth embodiment]
Next, the excellent effect of the thirteenth embodiment will be described. The user can record the video on the SD cards 22a and 22b under the desired video recording conditions by storing the video recording conditions in the SD card 22a attached to the SD card reader 14a in advance. By looking at the icons 53a and 53b displayed on the display 11, it is possible to confirm the SD card reader 14a to which the SD card 22a in which the recording conditions are stored and the current recording conditions are to be installed.

[Modification of the thirteenth embodiment]
As a recording condition, in addition to the frame rate and resolution, as shown in FIG. 21, for example, a condition for determining the occurrence of an event when recording images before and after the event occurs, and a condition for whether or not to record audio Etc. may be included. As a condition for determining whether or not an event has occurred, for example, a detection value of the acceleration sensor 18 mounted on the vehicle may be used as a determination threshold. In addition to the detection value of the acceleration sensor 18, other event types may be adopted as the recording condition.

  In the thirteenth embodiment, the recording conditions are stored in the SD card 22a attached to the SD card reader 14a. However, the recording conditions are stored in the SD card 22b attached to the other SD card reader 14b. It is good to keep it.

  When the recording conditions are stored in both the SD cards 22a and 22b held in the two SD card readers 14a and 14b, the controller 20 is stored in the SD card held in one specific SD card reader. It is preferable to record the video on the two SD cards based on the effective recording conditions without using the recording conditions stored in the SD card held in the other SD card reader. . The user only needs to attach the SD card storing the recording conditions to be actually recorded to one specific SD card reader, and does not need to know the recording conditions stored in the other SD card.

  The controller 20 enables the recording conditions stored in the SD cards 22a and 22b held in the two SD card readers 14a and 14b, respectively, and sets the recording conditions stored in the SD card for each SD card. A video may be recorded based on this. The user can determine recording conditions for each SD card.

  The controller 20 may record video on the SD card based on the recording conditions set in advance in the controller 20 without adopting the recording conditions stored in the SD card. The user sets the recording conditions in the controller 20 in advance, so that the user does not check the recording conditions stored in the SD card every time the SD card is inserted into the SD card reader, based on the desired recording conditions. Video can be recorded.

  The controller 20 is configured to enable a recording condition stored in an SD card held in a specific SD card reader, a mode in which both recording conditions stored in the SD card are enabled, It is desirable to have a function that allows the user to select one mode from modes that enable the recording conditions set in the controller 20. The user can select the most appropriate mode according to the usage pattern of the system.

  The controller 20 may display a plurality of modes to be selected by the user on the display 11 as menus.

  FIG. 22 shows an example of a menu screen displayed on the display 11. A button 44a for designating a mode for enabling the recording conditions stored in the SD card 22a held in the SD card reader 14a, and a mode for enabling the recording conditions stored in the SD card 22b held in the SD card reader 14b. Button 44b for designating, a button 44c for designating a mode for validating the recording conditions stored in both SD cards, and a button 44d for designating a mode for validating the prescribed recording conditions set in the controller 20 It is displayed.

  The user may select one mode from the menu. When an SD card that does not store recording conditions is held in the SD card reader, the mode that enables the recording conditions stored in the SD card held in the SD card reader is excluded from the menu. It is good to leave. When the recording condition is not set in the controller 20, a mode for enabling the default recording condition set in the controller 20 may be excluded from the menu. The user can know a list of selectable modes by looking at the menu screen displayed on the display 11.

  The priority may be stored in each SD card together with the recording condition, and the controller 20 may validate the recording condition with the higher priority. If the priorities are the same, it may be determined which recording condition is to be valid based on the time when the priorities are set. For example, the recording condition with the newer set time may be validated. On the contrary, the recording condition with the older setting time may be validated. It is preferable to set in advance in the controller 20 whether to enable the recording condition with the newer setting time or the older recording condition.

  The SD card reader to which the SD card storing the recording condition to be enabled and the SD card insertion slot may be fixed. For example, the user may insert an SD card that stores recording conditions to be validated into an SD card insertion slot at a predetermined position.

  In FIG. 21, the example in which the recording condition is set by the personal computer has been described. However, the controller 20 of the system 1 may have a function of storing the recording condition in the SD card.

[Fourteenth embodiment]
Next, a system 1 according to a fourteenth embodiment will be described with reference to FIGS. 23A, 23B, 24A, and 24B. Hereinafter, description of the configuration common to the configurations of the above-described embodiments will be omitted.

  FIG. 23A is a block diagram showing some functions of the system 1 according to the fourteenth embodiment. In the fourteenth embodiment, images are transferred from the two cameras 17a and 17b to the controller 20. For example, the two cameras 17a and 17b may be installed so as to image the front and rear of the vehicle, or the front and the inside of the vehicle, respectively.

  The controller 20 has a function of recording images captured by the two cameras 17a and 17b on SD cards 22a and 22b held in different SD card readers 14a and 14b, respectively. The controller 20 displays the correspondence between the two cameras 17a and 17b and the two SD card readers 14a and 14b on the display 11 as images or text information.

  FIG. 23B shows an image on the display 11 on which the correspondence between the two cameras 17a and 17b and the two SD card readers 14a and 14b is displayed. In the mode display area 31, an icon 45a indicating that the camera 17a corresponds to the SD card reader 14a and an icon 45b indicating that the camera 17b corresponds to the SD card reader 14b are displayed.

[Effect of the 14th embodiment]
Next, the excellent effect of the fourteenth embodiment will be described. The system 1 according to the fourteenth embodiment can record a wide area video that cannot be covered by one camera. For example, it is possible to record images of the front and rear of the vehicle, or images of the front and the interior of the vehicle. The user can easily know which video captured by which camera is recorded on the SD card held by which SD card reader by looking at the image (FIG. 23B) displayed on the display 11. The user can remove the SD card on which the video to be played back on the external device is recorded from the SD card reader and play back the video.

[Modification of the 14th embodiment]
The controller 20 indicates that the images recorded on the SD cards 22a and 22b respectively held by the two SD card readers 14a and 14b are images obtained by capturing different areas in the same period, through the display 11. It is good to inform. The user notices through the display 11 that two images captured during the same period are recorded on the two SD cards 22a and 22b, respectively. When confirming the images on the two SD cards 22a and 22b, the playback device may synchronize the two images and simultaneously display the images at the same time on the display screen. The user can easily check the situation around the vehicle at the same time.

  When the user removes only the SD card held by one SD card reader, the controller 20 records the video imaged in the same period on the SD card held by the other SD card reader. Therefore, a message prompting the user to remove the SD card may be displayed on the display 11. This notification makes it difficult to forget to remove the SD cards 22a and 22b from the SD card readers 14a and 14b.

  For example, two cameras 17a and 17b may be mounted on a work vehicle, and the front of the vehicle may be imaged on the one hand and the work location may be imaged on the other. For example, a work vehicle on which the cameras 17a and 17b are mounted may be a forklift, and a work location imaged by one camera 17a may be a range of fork lifting / lowering operations. The user can check the traveling state and the working state of the work vehicle with an image after the work.

  For example, two cameras 17a and 17b may be mounted on a vehicle operating on the premises, and the front of the vehicle may be imaged on the one hand and the driver may be imaged on the other hand. By looking at the images captured by the two cameras 17a and 17b, it is possible to verify whether the driver observes the driving rules on the premises. For example, it is possible to verify whether or not the user has pointed and cheered when making a right or left turn. When audio is added to the video, it is possible to verify whether or not a cheering call such as “right or left” is performed at a specific place.

  For example, different cameras may be used as the two cameras 17a and 17b. For example, an omnidirectional camera may be used as one camera 17a and a normal camera may be used as the other camera 17b. Based on the information notified through the display 11, the user stores an SD card in which video captured by the omnidirectional camera is stored and an SD card in which video captured by the normal camera is recorded. It can be easily distinguished.

  As shown in FIG. 24A, one camera 17a may be housed in the housing of the system 1, and the other camera 17b may be an external camera. Since the user only needs to connect one external camera 17b to the housing, the connection work can be simplified.

  As shown in FIG. 24B, both the two cameras 17a and 17b may be external cameras. The user can select an external camera having suitable performance depending on the object to be imaged and the use of the imaged video. Further, since the arrangement positions of the cameras 17a and 17b are not affected by the position of the system casing, the degree of freedom of arrangement of the cameras 17a and 17b is increased. The shapes of the connection terminals 46a and 46b on the housing side of the system 1 for connecting the external cameras 17a and 17b may be different. A connection error between the two external cameras 17a and 17b of different types can be prevented.

  Three or more SD card readers may be provided, and cameras corresponding to the number of SD card readers may be prepared. By preparing three or more SD card readers and cameras, a wider range of images can be simultaneously captured and recorded on the corresponding SD card.

[Fifteenth embodiment]
Next, a system according to a fifteenth embodiment will be described with reference to FIG. Hereinafter, description of the configuration common to the configurations of the above-described embodiments will be omitted.

  The controller 20 records the current video imaged by the camera 17 on the SD card 22a held by one SD card reader 14a. In the fifteenth embodiment, the other SD card reader 14b holds an SD card 22b on which images captured in the past by the camera 17 mounted on the vehicle are recorded together with the imaged position information. The controller 20 has a function of reading an image corresponding to the current position information from the SD card 22b and displaying it on the display 11 while checking the current position information of the vehicle based on the current position of the vehicle.

  Thus, for example, the SD card 22a held in one SD card reader 14a plays a role of recording video in real time, and the SD card 22b held in the other SD card reader 14b has traveled in the past. The function to provide the video of. The controller 20 informs the user of the roles of the two SD cards 22a and 22b through the display 11.

  FIG. 25 shows an example of an image displayed on the display 11. In the mode display area 31, there are an icon 47a indicating that the video captured by the camera 17 is recorded in real time on the SD card 22a, and an icon 47b indicating that the video recorded on the SD card 22b is displayed on the display 11. It is displayed. Further, a current video 48 captured by the camera 17 and a video 49 read from the SD card 22b are displayed in the video display area 30. The displayed past video 49 is associated with position information corresponding to the current vehicle position.

[Effect of the fifteenth embodiment]
Next, the excellent effect of the fifteenth embodiment will be described. The driver can drive while referring to the past video 49 displayed on the display 11. The images captured in the past may be captured while traveling along the recommended travel route of the vehicle. For a driver who is not guided by the recommended travel route, the video 49 displayed on the display 11 is useful information for traveling on the recommended travel route.

  The driver should look at the icons 47a and 47b displayed in the mode display area 31, and which SD card reader should be equipped with the SD card 22b on which past images when traveling along the recommended travel route are recorded. It is easy to know. For this reason, it is difficult to make a mistake in inserting the SD card into the SD card reader.

[Sixteenth embodiment]
Next, the system 1 according to the sixteenth embodiment will be described with reference to FIGS. Hereinafter, description of the configuration common to the configurations of the above-described embodiments will be omitted.

  In the sixteenth embodiment, the SD card 22b in which a store demonstration video for sales promotion is recorded is mounted on one SD card reader 14b and operates in a state where it is displayed at the store front.

  FIG. 26 is a flowchart of the operation of the system 1. When a user, for example, a store clerk, performs an operation to start the demonstration mode, the controller 20 displays a sales promotion demonstration video recorded on one SD card 22b on the display 11 (step SD1). At the end of the promotional video, a video telling consumers that shooting will begin is added. For example, it is good to play an image including a sound such as "Because shooting starts from now on, please point the camera in the direction you want to shoot."

  When the reproduction of the sales promotion demonstration video is completed, the controller 20 records the video captured by the camera 17 on the other SD card 22a for a predetermined time set in the controller 20 in advance (step SD2). For example, the predetermined time may be about 30 seconds. When the predetermined time elapses, the controller 20 ends the video recording and reproduces the video recorded on the SD card 22a (step SD3). The reproduced video is displayed on the display 11.

  Thereafter, the controller 20 determines whether or not to end the sales promotion operation. For example, the controller 20 ends the operation when the supply of power to the system 1 is stopped. If the controller 20 does not terminate the operation, the operation from the reproduction of the demonstration video for sales promotion (step SD1) is repeated. As described above, the controller 20 switches the playback of the demonstration video, the recording of the storefront video, and the playback of the storefront video in this order.

  The controller 20 records, for example, information for identifying the SD card reader 14b holding the SD card 22b on which a sales promotion video is recorded, and an SD card 22a for recording the video captured by the camera 17 displayed at the store. Is displayed on the display 11 to identify the SD card reader 14a holding the.

  FIG. 27 shows an example of an image displayed on the display 11. In the mode display area 31, an icon 50 is displayed to inform the user of the role played by the SD cards 22a and 22b. The icon 50 indicates that the video captured by the camera 17 is recorded on the SD card 22a, the video recorded on the SD card 22a is displayed on the display 11, the demonstration video is recorded on the SD card 22b, and This shows that the demonstration video is displayed on the display 11.

[Effect of the sixteenth embodiment]
Next, the excellent effect of the sixteenth embodiment will be described. The dealer can increase the consumer's willingness to purchase by displaying a demonstration video for sales promotion on the display 11. Furthermore, the function of the system can be easily communicated to consumers. The consumer can check the video captured at the store through the display 11. As a result, consumers can deeply understand the functions of the system and experience the performance.

  The consumer can see the demonstration video and know that the imaging is started, and can start the action of aiming the camera at an object to be imaged. The controller 20 may end the imaging in a fixed time, automatically reproduce the video, and display it on the display 11. When the reproduction of the captured video is finished, it is preferable to return to the reproduction of the sales promotion video.

[Seventeenth embodiment]
Next, a system 1 according to a seventeenth embodiment will be described with reference to FIG. Hereinafter, description of the configuration common to the configurations of the above-described embodiments will be omitted.

  The system 1 according to the seventeenth embodiment has an internal power source (battery) that supplies power to various components in the system 1 when the supply of power from the outside, for example, a vehicle is stopped. The internal power supply is charged during a period in which power is supplied to the system 1 from the vehicle.

  The system 1 operates as a drive recorder when power is supplied from the vehicle (drive recorder mode), and operates as a parking monitoring / recording device when power supply from the vehicle stops while being mounted on the vehicle. (Parking monitoring mode), and a function that operates in one of the operation modes (action camera mode) that operates as an action camera while being taken out of the vehicle.

  FIG. 28 shows a mode transition diagram between operation modes. The system 1 has five operation modes: a drive recorder mode, a parking monitoring mode, an action camera mode, a stop A mode, and a stop B mode. In the drive recorder mode, power is supplied from the outside (for example, a vehicle), and the main switch is turned on. In the drive recorder mode, the controller 20 performs constant recording, event recording, and the like, for example.

  If the external power supply stops when the operation mode is the drive recorder mode, the controller 20 changes the operation mode to the parking monitoring mode. In the parking monitoring mode, the controller 20 performs parking monitoring recording. If the main switch is turned off when the operation mode is the drive recorder mode, the controller 20 changes the operation mode to the stop A mode. In the stop A mode, the controller 20 does not record video.

  When the external power supply is resumed when the operation mode is the parking monitoring mode, the controller 20 changes the operation mode to the drive recorder mode. If the main switch is turned off when the operation mode is the parking monitoring mode, the controller 20 changes the operation mode to the stop B mode. In the stop B mode, the controller 20 does not record video.

  If the main switch is turned on when the operation mode is the stop A mode, the controller 20 changes the operation mode to the drive recorder mode. If the external power supply is stopped when the operation mode is the stop A mode, the controller 20 changes the operation mode to the stop B mode.

  When the external power supply resumes when the operation mode is the stop B mode, the controller 20 changes the operation mode to the stop A mode. When the main switch is turned on when the operation mode is the stop B mode, the controller 20 changes the operation mode to the action camera mode. The operation when the operation mode is the action camera mode will be described later.

  When the main switch is turned off when the operation mode is the action camera mode, the controller 20 changes the operation mode to the stop B mode. When the external power supply is resumed when the operation mode is the action camera mode, the controller 20 changes the operation mode to the drive recorder mode.

  The controller 20 records video on the SD card 22a held in one SD card reader 14a in the drive recorder mode, and the SD card 22b held in the other SD card reader 14b in the action camera mode. It has a function to record video. Further, the controller 20 has a function of recording an image on the SD card 22a held in one SD card reader 14a in the parking monitoring mode. The controller 20 displays the role played by the SD cards 22a and 22b held in the SD card readers 14a and 14b on the display 11.

  FIG. 29 shows an example of an image displayed on the display 11. An icon 51a indicating that an image captured when the system 1 is mounted on a vehicle is recorded in the mode display area 31 and the system 1 is taken out of the vehicle. An icon 51b indicating that the recorded video is recorded on the other SD card 22b is displayed. In FIG. 29, the fact that the system 1 has been taken out of the vehicle is represented by a figure of a ski as an example.

[Effect of the seventeenth embodiment]
The user can take the system 1 out of the vehicle and image a desired object. It is possible to store separately the SD card 22a on which the video imaged when the system 1 is mounted on the vehicle and the SD card 22b on which the video imaged by taking out from the vehicle is recorded. In a state where the system 1 is mounted on a vehicle, the video recorded by the camera 17 can be recorded on one SD card 22a, and the video recorded outside the vehicle can be read from the other SD card 22b.

  For example, it is possible to drive a vehicle and go out for a vacation, take the system 1 out of the vehicle at the resort and use it as an action camera. Images taken at the resort can be played in the car on the way home.

  The user can easily know which video is recorded on the SD card held by which SD card reader by looking at the icons 51 a and 51 b displayed on the display 11.

  When the system 1 is used as a drive recorder, the internal power supply of the system 1 is automatically charged during the period when the vehicle is turned on. For this reason, when the system 1 is used as an action camera, it is difficult to forget to charge the internal power supply.

[Modification of Seventeenth Embodiment]
After the system 1 operates as an action camera, when the system 1 is mounted on a vehicle and external power supply is started, the controller 20 automatically displays the video recorded on the SD card 22b during the period when the system 1 operates as an action camera. It is good to have a function to play back automatically. The user can immediately view and enjoy the video captured as the action camera in the car.

  It is particularly preferable that the system 1 is provided with a video data output terminal such as an HDMI (registered trademark) terminal and has a function of connecting to a large screen monitor. You can watch the video taken as an action camera on a large screen. As described above, the SD card reader 14b plays a role of holding the SD card for playback. When an SD card on which a video such as a movie is recorded is attached to the playback SD card reader 14b, the movie can be viewed on a large screen in the vehicle.

  After the system 1 operates as an action camera, the controller 20 is currently captured by the camera 17 until a predetermined time elapses after the system 1 is mounted on a vehicle and external power supply is started. It is preferable to have a function of automatically playing back the video recorded during the period of operation as the action camera after a predetermined time has elapsed. The user can adjust the posture of the camera 17 while viewing the video displayed on the display 11 during a period in which the current video captured by the camera 17 is displayed on the display 11.

  A camera mounted on a drive recorder generally has an ultra-wide angle and a single focal point. This feature is common to the feature required for action cameras. In order to use the system 1 as an action camera, the system 1 may be provided with a waterproof function.

  In addition to the joint rail 13 used when the system 1 is mounted on a vehicle, when the system 1 is used as an action camera, it is preferable to provide a joint portion with a mount for attaching to various equipment used in outdoor sports. . Further, the joint rail 13 for mounting on the vehicle may be attached to various mounts for the action camera via an adapter. When the system 1 is mounted on a vehicle, the system 1 is generally suspended from above as shown in FIG. 1B, but when used as an action camera, the system 1 is often supported from below. When the system 1 is supported from below using the joint rail 13, the top and bottom are reversed during imaging. The system 1 may determine the top / bottom by the acceleration sensor 18 (FIG. 2), and determine and record the top and bottom of the captured image according to the top / bottom determination result.

  When the system 1 is operating in each of the drive recorder mode, the parking monitoring mode, and the action camera mode, a function of recording only images of a predetermined time before and after a predetermined event occurs on a predetermined SD card. The controller 20 may be provided. The time that goes back from the event occurrence detection time to the video recording start time is called “preceding time”, and the elapsed time from the event occurrence detection time to the video recording end is called “delay time”. A condition (event condition) for determining that an event for recording a video has occurred may be different for each operation mode. The event condition is a condition that triggers recording an image.

[Event conditions applied in the seventeenth embodiment]
Next, event conditions applicable for each operation mode will be described.

  When the operation mode is the drive recorder mode, the event condition may be detection of an impact exceeding a certain threshold, detection of a sudden handle operation, detection of a sudden brake operation, detection of sudden acceleration, or the like. When the operation mode is the parking monitoring mode, the event conditions include detection of movement of an object within the field of view of the camera 17, detection of opening of a window glass, detection of opening of a door, detection of shaking of a vehicle body, loud sound exceeding a threshold value It is good to detect it. When the operation mode is the action camera mode, the event condition may be changed depending on what kind of outdoor sports the user using the system 1 is doing.

  Hereinafter, event conditions when surfing will be described. For example, the take-off may be detected as the event condition. Here, the take-off means a moment when the player accelerates while paddling while lying down and stands up on the wave. Since the surfboard starts to run at the time of take-off, it is preferable to detect the take-off based on the acceleration, motion, etc. at that time. For the detection of take-off, a motion sensor that can measure acceleration, angular velocity, posture angle, azimuth, velocity, position, and the like may be used.

  In order to leave an image of the moment when the surfer captures the wave, the preceding time from the take-off detection time may be, for example, 30 seconds or more and 2 minutes or less, particularly about 1 minute. In order to leave an image from take-off to installation, the delay time may be determined in consideration of the estimated time from take-off to installation. For example, the delay time is preferably 1 minute or more and 3 minutes or less, and particularly preferably about 2 minutes. When take-off is detected again within the delay time, video may be recorded until a predetermined delay time elapses from that point.

  Advanced players may accelerate by performing a lip action that hits the bottom when the waves rip. At this time, the motion becomes larger and the acceleration increases. If this lip action is detected during video recording, a predetermined delay time may be re-measured from the time of detection. For example, the elapsed time from the occurrence of the event may be initialized at the time when the lip action is detected. When the elapsed time is initially set, video is recorded until a predetermined delay time elapses from the time when the lip action is detected.

  Next, event conditions when skiing or snowboarding are described. For example, the start of slipping may be detected as an event condition. For detection of the start of slipping, a motion sensor that can measure acceleration, angular velocity, posture angle, azimuth, velocity, position, and the like may be used. The preceding time may be, for example, 30 seconds or more and 2 minutes or less, and particularly preferably about 1 minute. For example, the delay time is preferably 1 minute or more and 3 minutes or less, and particularly preferably about 2 minutes.

  Further, it is preferable to detect a fall as an event condition. The fall detection can be performed by using a measurement result of acceleration, angular velocity, posture angle, azimuth, and the like by a motion sensor. Furthermore, as an event condition, it may be detected that the speed has reached a predetermined threshold.

  The controller 20 may extend the delay time when detecting a predetermined trigger during video recording. While sliding, some kind of motion is also involved, so it is better to pick up acceleration or motion as a trigger. If you are going downhill, pick up speed as a trigger. If a predetermined trigger is not detected within a predetermined delay time from the event detection time, video recording may be terminated when a predetermined delay time has elapsed from the event detection time.

  Next, event conditions when playing golf will be described. For example, detection of address completion may be set as an event condition (trigger), and recording may be stopped when a predetermined delay time has elapsed since the detection of impact. In order to leave an image in the follow-through period, the predetermined delay time is preferably, for example, not less than 2 seconds and not more than 5 seconds, and particularly preferably about 3 seconds. Detection of address completion and impact detection can be detected by a slim watch type sensor (for example, Golf Navi YBW-Putt sold by Jupiter Co., Ltd.) attached to a golfer's wrist. By transmitting a detection result to the system 1 from a slim watch type sensor using a short-range wireless communication (for example, Bluetooth (registered trademark)) function, the system 1 can specify the address completion time and the impact time. .

  By linking the swing trainer (for example, the swing trainer GST series sold by Jupiter Co., Ltd.) having the function of estimating the head speed, ball speed, meet rate, flight distance, etc., with the system 1 of this embodiment, A function of embedding estimated values such as head speed, ball speed, meet rate, flight distance, etc. in the video may be added. The user can verify the quality of his / her swing by associating the actual swing image with the head speed, ball speed, meet rate, flight distance, and the like.

  It may be embarrassing to set the system 1 of this embodiment having a recording function at a golf driving range. For example, when the system is set in a chair at the back of the batting, it is difficult for others to notice the presence of the system 1. It is even better if a fixing device having a function of keeping the posture by placing the system 1 on a chair is attached to the system 1. Furthermore, when a can holder is provided in a chair or the like, a fixing device having a function of holding the posture by putting the system 1 in the can holder may be attached to the system 1. The system 1 may be provided with an attachment portion for attaching such a fixing device.

  When going to a golf driving range, it is common to hit about 100 to 300 balls per shot. For example, under the condition that about 10 seconds of video is recorded per shot, about 3000 seconds of video is recorded per practice. As an example, it is desirable to prepare an SD card having a capacity capable of recording an image of 3000 seconds under the conditions of a resolution of 1080p and a frame rate of 30 fps. Also, golfers tend to desire a higher frame rate than video resolution in order to verify their swing. The system 1 may have a function of changing the frame rate by a user operation. It is further preferable to have a function of automatically adjusting the resolution according to the capacity of the SD card for recording video and the set frame rate. By adjusting the resolution, even if the user sets the frame rate high, it is possible to record the video for the required time.

  The frame rate of the video after detection of address completion may be higher (the number of frames) than the frame rate of video before detection of address completion. By reducing the frame rate of the video before detection of address completion, the total data amount of the video can be reduced.

  Instead of all the swings, only a video of a swing that satisfies a specific condition may be recorded. For example, it is preferable to record only the video of the swing determined to be a miss shot and the swing determined to be a nice shot. The system 1 may have a function of discriminating between a nice shot and a miss shot. Whether it is a miss shot and a nice shot may be determined based on estimated values such as meet rate, head speed, and flight distance. For example, a swing with a meat rate of 1.4 or more, a head speed of 50 m / s or more, and a flying distance of 260 yards or more may be determined as a nice shot. Moreover, it is good to determine the swing estimated that the meet rate is 1.2 or more and 1.3 or less as a miss shot.

  By recording only the video of a specific shot, the capacity of the SD card can be saved. Further, when the capacity of the SD card is constant, the frame rate and resolution can be increased. The user can reproduce a nice shot video and a miss shot video and compare them. The system 1 particularly preferably has a function of displaying a nice shot video and a miss shot video side by side on one screen during video playback.

  As another example, video of all swings may be recorded, and a mark for identifying a nice shot and a miss shot may be recorded together with the video. By using a mark that identifies a nice shot and a miss shot, it is possible to easily extract a nice shot video and a miss shot video from a long-time video.

  In practice at a golf driving range, the number of balls hit for each club type may be recorded together with date / time information. The user can know the history of the number of balls for each club type based on this record. The number of balls hit can be considered as a practice amount. For example, a year ago, the amount of practice by the driver was large, but it can be seen that the amount of practice by the iron is large recently.

  Information indicating the time interval between hits at the golf driving range and the next hit may be recorded together with the video. For example, the time interval when the club is continuously played is relatively short, and the time interval when the club is changed is relatively long. The time interval recorded with the video provides a clue to find out when the club changed.

  For example, a beginner whose basic form is not fixed goes to a driving range for the purpose of wearing the basic form. For example, there are various measures for a user who wants to prevent the left shoulder from opening in order to prevent the driver from slicing. When various measures are tried and a measure that seems to be effective is found, the same measure is taken and checked to confirm reproducibility. Check the video of the form during the break and continue to hit it if it is different from the image. For example, by comparing a model video posted on a video posting site with one's own form, it is possible to verify whether the swing can be performed according to the image. Improvement is possible by repeating the recording of the practice shot and its video and the confirmation of the video. Information indicating the time interval from one shot to the next is a clue to find the point in time when the video was confirmed during this repeated practice.

  The event condition described above can be applied not only to the system 1 according to the seventeenth embodiment having a drive recorder function and an action camera function, but also to an action camera dedicated machine.

[Eighteenth embodiment]
Next, a system according to an eighteenth embodiment will be described with reference to FIG. Hereinafter, description of the configuration common to the configurations of the above-described embodiments will be omitted.

  In the eighteenth embodiment, key information indicating access authority is stored in an SD card held in at least one of the SD card readers 14a and 14b. The controller 20 reads the key information stored in the SD card held in the SD card reader, and accesses the SD card held in the SD card readers 14a and 14b based on the read key information. Has functions to restrict or allow.

  The controller 20 displays on the display 11 an SD card reader that holds an SD card that plays a role of recording video captured by the camera 17 and an SD card reader that holds an SD card in which key information is stored. The function to inform the user by the image to be performed.

  FIG. 30 shows an example of an image displayed on the display 11. In the mode display area 31, the icon 52a indicating that video is recorded on the SD card 22a held in the SD card reader 14a, and key information is stored in the SD card 22b held in the SD card reader 14b. Is displayed.

[Effect of the 18th embodiment]
Next, the excellent effect of the eighteenth embodiment will be described. Since the access to the SD cards 22a and 22b is restricted or permitted by the key information of the SD card 22b held in one SD card reader 14b, the security of the system can be improved.

  The user can easily know which SD card reader should be loaded with the SD card 22b storing the key information by looking at the image displayed on the display 11. In addition, it is possible to reduce mistakes in installing the SD card.

[Modification of Eighteenth Embodiment]
For example, the controller 20 may have a function of operating in any one of an administrator mode and a user mode. The key information stored in the SD card 22b may be permission of operation in the administrator mode, permission of operation only in the user mode, or the like. For example, when the controller 20 is operating in the administrator mode, the controller 20 can initialize the SD card 22a held in the SD card reader 14a, but when operating in the user mode. The SD card 22a held in the SD card reader 14a may not be initialized. For example, the information stored in the SD card 22a may be classified into information that can be browsed only by an administrator and information that can be browsed by a general user. When operating in the administrator mode, the controller 20 can read information that can be browsed only by the administrator. However, when operating in the user mode, the controller 20 can read information that can be browsed only by the administrator. It is better not to be able to read. The controller 20 may have a function of operating in the user mode when the SD card storing the key information is not held in any SD card reader.

  Information for driver guidance (for example, video images) may be stored in the SD card 22b in which key information is stored. The controller 20 may read out information for driver guidance and display the information on the display 11 or output sound from the speaker 15. When an SD card in which video images for driver guidance are stored is installed, the controller 20 may automatically reproduce the video images for guidance. The driver is motivated to perform safe driving by noticing the information displayed on the display 11 and the information output from the speaker 15. For each driver, the manager may store information for driver guidance in the SD card 22b based on the driving behavior of the driver and pass it to the driver.

  For example, it is good to give the SD card 22b which memorize | stored the information which urges | pauses suspension to the driver with the habit which ignores suspension. The controller 20 may output information for prompting the pause from the display 11 or the speaker 15 when analyzing the video captured by the camera 17 and detecting a stop sign. As information for prompting a pause, for example, a voice “Let's pause at a place with a stop sign” may be output. For example, it is good to give the SD card 22b which memorize | stored the information which encourages not to perform a sudden handle operation to the driver who operates a sudden handle frequently.

  The manager can know the driving habits of each driver by watching the video recorded constantly while the vehicle is running. Further, it is possible to identify a place where dangerous driving has been performed in the past by associating the video recorded on the SD card with the position information. The administrator may add the position information to the information for driver guidance and store the information. When the controller 20 detects that it has approached a place where dangerous driving has been performed in the past, the controller 20 may output information for calling attention so as not to perform dangerous driving from the display 11 or the speaker 15. Further, when the controller 20 detects the occurrence of a dangerous driving of the same type as the dangerous driving stored as information for driver guidance, the controller 20 outputs information for alerting the user not to perform the dangerous driving from the display 11 or the speaker 15. Good. Further, the controller 20 may output information for alerting the user not to perform the dangerous driving from the display 11 or the speaker 15 when an event that is predicted to generate the dangerous driving occurs. For example, when a traffic light is detected in the video imaged by the camera 17, information for calling attention not to ignore the signal may be output from the display 11 or the speaker 15. For example, if a pedestrian is detected in the video imaged by the camera 17, information for calling attention to the pedestrian should be output from the display 11 or the speaker 15.

  As a notification means for notifying the user of the SD card 22b storing the key information, a sign indicating the key information is provided on the surface of the casing near the SD card reader 14b to which the SD card 22b storing the key information is to be attached. It is good to provide. Further, when the controller 20 detects that the SD card 22b storing the key information is attached to the wrong SD card reader, the controller 20 displays information prompting the user to attach the SD card 22b to the correct SD card reader. It is good to output from 15.

[Nineteenth embodiment]
Next, a system 1 according to a nineteenth embodiment will be described with reference to FIG. Hereinafter, description of the configuration common to the configurations of the above-described embodiments will be omitted.

  In the nineteenth embodiment, the controller 20 uses the SD cards 22a and 22b held by the two SD card readers 14a and 14b, images having a mutually complementary relationship, and two SD cards 22a and 22b. Record identification information to associate Furthermore, when the SD card in which the identification information is recorded is held only in one SD card reader, the function of notifying the user through the display 11 or the speaker 15 that there is another SD card that complements each other exists. Have.

  FIG. 31 shows an example of an image displayed on the display 11. As an example, an icon 55 indicating that video captured by the camera 17 is recorded alternately on one SD card 22a and the other SD card 22b is displayed in the mode display area 31. The SD cards 22a and 22b store identification information indicating that the SD cards 22a and 22b are paired and the recorded videos complement each other to form one video.

  When only one of the SD cards is inserted into the SD card reader, the controller 20 says, “One of the two SD cards that make up the pair is installed. The other SD card that forms the pair is also installed. Please display the message "Do you want to continue the process?" The user can select “Yes” or “No” by operating the operation button 12.

  When the user selects “Yes”, the controller 20 continues the processing as it is. For example, video is recorded only on the installed SD card. If the user selects “No”, the controller 20 stands by for processing until another SD card is inserted into the SD card reader.

  In addition, when only one of the paired SD cards is removed from the SD card reader, the controller 20 may notify the user that the paired SD card remains in the SD card reader.

[Effect of the nineteenth embodiment]
Next, effects of the nineteenth embodiment will be described. When the user attaches or removes the SD card to / from the SD card reader, it is difficult to forget to attach or remove one of the two SD cards having a mutually complementary relationship. It is possible to avoid the occurrence of a situation where two SD cards having a mutually complementary relationship are dissipated and a useful video cannot be obtained.

[Modification of the 19th embodiment]
As a mutually complementary relationship, for example, one is an SD card initialized with a general-purpose format, and the other is an SD card initialized with a unique format, and the images recorded on both are the same. It is good to have a relationship. Depending on the device to be played, video can be played back by installing an SD card in a format supported by that device. For example, the FAT format may be adopted as the general-purpose format. For example, a format called YP format may be adopted as a unique format format.

  When the FAT format SD card is removed from the SD card reader and the YP format SD card is inserted, the controller 20 may display a message on the display 11 prompting the user to insert the FAT format SD card.

  The controller 20 may record video in the YP format on both SD cards attached to two SD card readers. At this time, if one of the SD cards is removed and a FAT format SD card is inserted, the controller 20 may display a message on the display 11 urging the user to insert a YP format SD card. Alternatively, a message may be displayed on the display 11 to confirm to the user whether the newly installed FAT format SD card may be initialized in the YP format.

  When an SD card that does not store key information is inserted into an SD card reader to which an SD card that stores key information is to be mounted, the controller 20 prompts the user to insert an SD card that stores key information. May be displayed on the display 11.

[20th embodiment]
Next, a system 1 according to a twentieth embodiment will be described with reference to FIG. Hereinafter, description of the configuration common to the configurations of the above-described embodiments will be omitted.

  In the twentieth embodiment, the controller 20 has a function of initializing the SD cards 22a and 22b held in the SD card readers 14a and 14b. When the user performs an operation of initializing an SD card held in one SD card reader, the controller 20 waits for information for specifying the SD card to be initialized specified by the user and initialization confirmation. It has a function of displaying the state on the display 11. The controller 20 has a function of executing initialization processing after receiving a confirmed response from the user.

  FIG. 32 shows an example of an image displayed on the display 11. A graphic representing the outer shape of the system 1 is displayed in the video display area 30 so that the positions of the SD card insertion slots 10a and 10b can be seen. Further, the SD card insertion slot in which the SD card to be initialized specified by the user is inserted is displayed separately from other SD card insertion slots, and a message for confirming whether or not to initialize is displayed. . For example, a message “Do you want to initialize?” Is displayed. The user can select “Yes” or “No”.

  When the user selects “Yes”, the controller 20 executes initialization of the SD card designated by the user. If the user selects “No”, the controller 20 stops the initialization process.

[Effect of the twentieth embodiment]
Next, effects of the twentieth embodiment will be described. Since the controller 20 performs initialization after waiting for a confirmation response from the user during the initialization process, it is possible to prevent an unexpected storage medium from being initialized due to a user operation error. As a result, it is possible to prevent a video that is not desired to be erased from being erased.

  Since the position of the SD card insertion slot into which the designated initialization target SD card is inserted is displayed in a graphic form, the user can easily make a mistake when there is an error in the instruction of the initialization target SD card. You can notice.

[Twenty-first embodiment]
Next, the system 1 according to the twenty-first embodiment will be described with reference to FIG. Hereinafter, description of the configuration common to the configurations of the above-described embodiments will be omitted.

  FIG. 33 is a perspective view of the system 1 according to the twenty-first embodiment and a plan view of the SD cards 22a and 22b to be installed in the system 1. In the twenty-first embodiment, an identification mark is displayed on each of the SD card insertion slots 10a and 10b of the system 1. The identification mark 60a displayed in the vicinity of one SD card insertion slot 10a and the identification mark 60b displayed in the vicinity of the other SD card insertion slot 10b are different in at least one of shape and color. In the example shown in FIG. 33, the shape of one identification mark 60a is a star, and the shape of the other identification mark 60b is a triangle.

  The system 1 is provided with seals 61a and 61b for attaching to the SD card. The seals 61a and 61b are provided with identification marks having the same shape and color as the identification marks attached to the SD card insertion openings 10a and 10b, respectively. For example, a star-shaped identification mark is printed on one seal 61a, and a triangular identification mark is printed on the other seal 61b.

[Effect of the twenty-first embodiment]
Next, the excellent effect of the twenty-first embodiment will be described. The user can associate the SD card with the SD card insertion slot by sticking the stickers 61a and 61b to the SD cards 22a and 22b, respectively. When the user inserts the SD card into the SD card reader, the user can easily know which SD card insertion slot to insert by looking at the identification mark. As a result, the effect that mistakes in mounting the SD card are reduced can be obtained.

[Modification of the twenty-first embodiment]
The controller 20 may store information for identifying an identification mark associated with the SD card reader in the SD card attached to the SD card reader. For example, if the SD card 22a in which information for identifying a star-shaped identification mark is stored is erroneously inserted into the SD card insertion slot 10b associated with the triangular identification mark, the controller 20 removes the identification mark from the SD card 22a. Information to be identified can be read to detect erroneous mounting. When the controller 20 detects erroneous mounting, the controller 20 may display a message informing the display 11 that the mounting is incorrect. For example, a message that prompts the user to insert an SD card with a triangle sticker may be displayed. The user can notice that it is an erroneous attachment by looking at the message displayed on the display 11.

[Twenty-second embodiment]
Next, a system 1 according to a twenty-second embodiment will be described with reference to FIGS. 34A and 34B. Hereinafter, description of the configuration common to the configurations of the above-described embodiments will be omitted.

  FIG. 34A is a perspective view of the system 1 according to the twenty-second embodiment. One SD card insertion slot 10 b is provided on the upper surface of the casing of the system 1, and the other SD card insertion slot 10 a is provided on the side surface of the system 1. The upper surface of the housing faces the windshield or ceiling of the vehicle, and the space between them is narrow. For this reason, it is difficult for the user to insert or remove the SD card through the SD card insertion slot 10b provided on the upper surface. On the other hand, it is relatively easy to insert or remove the SD card through the SD card insertion slot 10a provided on the side surface.

  The SD card 22a attached to the SD card reader 14a corresponding to the one SD card insertion slot 10a is used for an application that needs to be frequently detached, and the SD card reader 14b corresponding to the other SD card insertion slot 10b. The SD card 22b attached to the card is used for an application that does not need to be frequently detached.

  The system 1 informs the user of the role of the SD card based on the difference in the ease of attaching and detaching the SD card to the two SD card readers 14a and 14b.

[Effect of the twenty-second embodiment]
When the user installs the SD card, the user can recognize the role of the SD card inserted through the SD card insertion slot by sensing that it is difficult to attach or detach the SD card through the SD card insertion slot. For example, when it is difficult to attach and detach through the SD card insertion slot, the user is not intended to carry the SD card attached to the SD card reader through the SD card insertion slot but to use it while it is installed in principle. I notice that. On the contrary, when it is easy to attach and detach through the SD card insertion slot, the user notices that the SD card attached to the SD card reader through the SD card insertion slot is for carrying.

[Modification of the twenty-second embodiment]
In a state where the system 1 is mounted on a vehicle, one SD card reader may be arranged at a position where it is more difficult to install the SD card than the other SD card reader. The system 1 may inform the user of the role of the SD card held by the SD card reader due to the difference in the position of the SD card reader.

  As a position where the SD card can be easily mounted, for example, in a state where the housing is mounted on a vehicle, an empty space of a size corresponding to a portion of the surface of the housing from the wrist of a general adult male is formed on the surface of the housing. An area secured adjacently can be mentioned. As a size corresponding to a part from the wrist of a general adult male, for example, a sphere having a diameter of 10 cm may be used. As a position where it is difficult to mount the SD card, for example, an area where such an empty space is not secured can be cited.

  For example, the position where it is difficult to mount the SD card may be the surface of the housing that faces the front, top, or middle of the vehicle. The position where the SD card can be easily mounted may be, for example, the housing surface facing in the left-right direction or the direction in the passenger compartment. The surface facing the direction of the bracket for attaching the housing to the vehicle may be a position where it is difficult to mount the SD card.

  For example, the controller 20 may record an image captured by the camera 17 during a parking period on an SD card held by an SD card reader disposed at a position where it is difficult to attach the SD card. It is difficult for the driver to accidentally remove the SD card from the SD card reader when the vehicle is parked and to record video during the parking period.

  As shown to FIG. 34B, it is good to set it as the structure which cannot let an SD card pass by attaching the lid | cover 62 which can be opened and closed to the SD card insertion slot 10b. The SD card insertion slot 10a that allows easy passage of the SD card may be configured to be always open.

[Twenty-third embodiment]
Next, a system 1 according to a twenty-third embodiment will be described with reference to FIG. Hereinafter, description of the configuration common to the configurations of the above-described embodiments will be omitted.

  FIG. 35 is a perspective view of the system 1 according to the twenty-third embodiment. SD card insertion slots 10a and 10b are provided in the casing of the system 1. Corresponding to the SD card insertion openings 10a and 10b, SD card readers 14a and 14b are arranged in the housing. The SD card readers 14a and 14b are configured to hold SD cards having different sizes. For example, one SD card reader 14a holds a relatively small micro SD card, and the other SD card reader 14b holds a normal size SD card.

  The sizes of the SD card insertion slots 10a and 10b are different from each other corresponding to the difference in the size of the SD card to be held. For example, the SD card insertion slot 10a for inserting a micro SD card is smaller than the SD card insertion slot 10b for inserting a normal size SD card.

  The system 1 informs the user of the role played by the SD card held by the SD card readers 14a and 14b by the configuration in which the two SD card insertion openings 10a and 10b have different sizes.

[Effect of the twenty-third embodiment]
Next, the excellent effect of the twenty-third embodiment will be described. The user can notice the role of the SD card inserted into the SD card reader through the SD card insertion slot by looking at the size of the SD card insertion slots 10a and 10b. For example, the user thinks that an SD card of a normal size that is inserted through the large SD card insertion slot 10b is unlikely to be lost during carrying, and as a result, the SD card that is inserted through the SD card insertion slot 10b is portable. I realize that. On the contrary, the micro SD card inserted through the smaller SD card insertion slot 10a is in principle used for use with the SD card reader 14a always mounted.

  For example, there is a provision that an SD card in which video is constantly recorded is submitted to the administrator every time the vehicle travels, and an SD card in which an event is recorded is submitted to the administrator only when a predetermined event occurs. In this case, it is preferable to always record on a normal size SD card and record an event on a micro SD card.

[Twenty-fourth embodiment]
Next, a system 1 according to a twenty-fourth embodiment will be described with reference to FIG. Hereinafter, description of the configuration common to the configurations of the above-described embodiments will be omitted.

  The controller 20 has a function of detecting that an error has occurred in each of the SD cards 22a and 22b held in the two SD card readers 14a and 14b. When it is detected that an error has occurred in the SD card held in one SD card reader and the detected SD card has been removed from the SD card reader, the other SD card is also removed. The display 11 has a function for displaying a message prompting the maintenance staff (administrator) to submit it.

  FIG. 36 shows an example of an image displayed on the display 11. In the video display area 30, a message “SD card with error has been removed. Please remove the other SD card and submit it to the administrator” is displayed.

[Effect of the twenty-fourth embodiment]
Next, the excellent effect of the twenty-fourth embodiment will be described. By inspecting not only the SD card in which an error has occurred but also the SD card in which no error has occurred, it becomes easy to isolate the cause of the error. The error includes, for example, an SD card failure, a writing failure, an overwriting prescribed value exceeding the number of overwrites, and the like. By looking at the message displayed on the display 11, the driver can forget to remove the SD card and forget to submit it to the maintenance staff.

[Twenty-fifth embodiment]
Next, the system 1 according to the twenty-fifth embodiment will be described with reference to FIG. Hereinafter, description of the configuration common to the configurations of the above-described embodiments will be omitted.

  FIG. 37 is a block diagram showing partial functions of the system 1 according to the twenty-fifth embodiment. The SD cards 22a and 22b are provided with mechanical write prohibit switches (write protect switches) 62a and 62b that can be turned on and off by a user operating from the outside. When the write inhibit switches 62a and 62b are turned on, writing to the SD cards 22a and 22b is prohibited. One SD card reader 14b includes an actuator 63 that turns on the write inhibit switch 62b of the loaded SD card 22b. The actuator 63 turns on the write inhibit switch 62b of the SD card 22b attached to the SD card reader 14b based on a command from the controller 20. The actuator 63 that turns on the write inhibit switch 62b can be realized by a solenoid actuator, for example.

  When detecting that a predetermined event has occurred, the controller 20 has a function of controlling the actuator 63 to turn on the write prohibit switch 62b of the SD card 22b. In particular, the controller 20 may have a function of turning on the write inhibit switch 62b after a predetermined time has elapsed since the occurrence of the event was detected.

[Effect of the twenty-fifth embodiment]
Next, the excellent effect of the twenty-fifth embodiment will be described. When the controller 20 puts the SD card 22b in a write-inhibited state, it is possible to prevent the recorded video from being overwritten when an event occurs.

[Twenty-sixth embodiment]
Next, a system 1 according to a twenty-sixth embodiment will be described. Hereinafter, description of the configuration common to the configurations of the above-described embodiments will be omitted.

  The controller 20 of the system 1 according to the twenty-sixth embodiment can select and execute one of the functions of the above-described first to twentieth embodiments and the twenty-fifth embodiment. For example, it is possible to change which role the SD card plays in the above-described embodiment by user operation. For example, the user can select which role the SD card plays. When the SD card is removed from all the SD card readers, the role played by the SD card may be returned to the preset basic role. Before the SD card is attached to the SD card reader, the role of the SD card is not determined, and the role may be determined after the SD card is attached to the SD card reader.

[Twenty-seventh embodiment]
Next, a twenty-seventh embodiment will be described. Hereinafter, description of the configuration common to the configurations of the above-described embodiments will be omitted.

  In the above-described embodiment, the user is informed of the role of the SD card through the image displayed on the display 11 by the controller 20, but in the twenty-seventh embodiment, the controller 20 has the SD held by two SD card readers. It has a function of notifying the user of the mutual relationship of information stored in the card.

  The user can know the mutual relationship between the information stored in the SD cards held by the two SD card readers. This increases convenience for the user.

  Next, the relationship between the information stored in the two SD cards will be exemplified. First, a case will be described as an example where information stored in two storage media is an image.

  As a mutual relationship between the images, it is preferable that the two images are paired to make sense, and only one of the images does not make sense, or the intended use purpose cannot be achieved. When the information stored in the two SD cards has this relationship, the controller 20 may notify the user via the display 11 that it cannot be used with only one SD card. Since the user is prompted to carry two SD cards as a set, it is difficult for the user to forget to carry one SD card and use the video.

  As an interrelationship between the images, the image pickup object and the image pickup time are the same, and it is preferable that both the images have a use value independently. As such a relationship, for example, a relationship that the recording formats on the two SD cards are exactly the same, a relationship that the format formats of the two SD cards are different, and a frame of video recorded on the two SD cards. The relationship that the recording conditions (setting conditions) such as rate and resolution are different, all the images acquired during the imaging period are recorded on one side, and only the video before and after the predetermined event occurrence is recorded on the other side For example, both have recorded the video before and after the event occurrence, but have different event types. When the information stored in the two storage media has this relationship, the controller 20 may inform the user that the video can be used alone and the difference between the two videos via the display 11. . The user can determine which SD card is preferable to be viewed according to the purpose of use.

  As the interrelationships between the images, since the imaging objects are the same but the imaging times are different, it is preferable that the usage purposes of the images are different. As such a relationship, for example, it is a video that is mounted on a vehicle traveling on a prescribed route and is captured by the camera 17, but the relationship is that imaging dates and times are different. When the information stored in the two SD cards has this relationship, the controller 20 may inform the driver of the vehicle of the image capturing time via the display 11. Since the driver of the vehicle can check a video recorded in the past when traveling on a predetermined route, an error in the route is unlikely to occur.

  The relationship between the images may be a relationship in which different images are captured by different cameras at the same time. As such a relationship, for example, the relationship between the image in front of the vehicle and the image in the vehicle, the relationship between the image in front of the vehicle and the image in the rear, the relationship between the image in front of the work vehicle and the image of the work target location, etc. Can be mentioned. When the information stored in the two SD cards has this relationship, the controller 20 may inform the user via the display 11 that the imaging times of the two videos are the same. The user can recognize that it is meaningful to play two videos in synchronization with each other.

  The relationship between the images may be a relationship in which the images are captured in different environments using the same camera. As such a relationship, for example, an image captured by mounting the camera on the vehicle, an image captured by taking the camera out of the vehicle and attaching it to an outdoor sports equipment, and the like can be cited. When the information stored in the two SD cards has this relationship, the controller 20 may inform the user that the two images are taken in different environments via the display 11. . The user can know that different images captured in different environments are recorded on the two SD cards. Further, the controller 20 is particularly preferably informed on which storage medium an image captured in which environment is recorded via the display 11. The user can know which SD card records the video imaged in which environment.

  As an interrelationship of images, the image is captured using the same camera, but the image recorded on one SD card is a composite image in which an additional image is superimposed on the captured image. Good. As an additional image, for example, an alarm image issued when the vehicle approaches the radar device may be used. When the video recorded on the two SD cards has this relationship, the controller 20 indicates that the video recorded on one SD card via the display 11 is a composite image in which additional images are superimposed. It is good to inform the user of this.

  As the interrelationship of the images, the two are images for achieving a common purpose, but it is preferable that one is a pre-prepared image and the other is an image recorded on the spot. . As such a relationship, for example, one can be a sales promotion video explaining the function and performance of the system, and the other can be a video taken on the spot. When the information stored in the two SD cards has this relationship, the controller 20 stores a video prepared in advance on one SD card via the display 11, and the other SD card stores the image prepared in advance. Should inform the user that recording will take place. When the video on one SD card is prepared in advance, the user can know that the other SD card should be used for recording. The consumer can know the outline and performance of the system by viewing the sales promotion video, and can experience the operation and performance of the system by viewing the video recorded on the spot.

  As the interrelationship between the videos, it is preferable that one video is captured by the camera and the other video is a template image for extracting a specific image from the video captured by the camera. The controller 20 may notify the user via the display 11 that the image recorded on one SD card is a template image for image recognition and the other is an SD card for image recording. The user can extract various images by adding or modifying the template image.

  Next, the case where the information stored in one of the two storage media is a video and the information stored in the other is data other than the video will be exemplified.

  As a mutual relationship of information, it is preferable that one information is an image captured by a camera and the other information is information (key information) indicating an authority to access the SD card. The controller 20 may notify the user that the information stored in one of the SD cards is information indicating access authority via the display 11. The user can know that an SD card as a key for permitting a predetermined access authority is necessary to access the video.

As a mutual relationship between the information, it is preferable that one information is a video image captured by a camera mounted on the vehicle and the other information is log data that records vehicle information in time series. The controller 20 may notify the user that one of the images is captured by a camera mounted on the vehicle via the display 11 and the other is log data. The user can know that useful information relating to the traveling of the vehicle can be obtained by combining the video and log data respectively recorded on the two SD cards.
@
In each of the embodiments described above, a system in which two SD card readers are mainly mounted has been described. However, it is obvious that three or more SD card readers may be mounted. .

  Each of the above-described embodiments is an exemplification, and needless to say, partial replacement or combination of the configurations shown in the different embodiments is possible. Each component described in each embodiment may be arbitrarily combined. Moreover, you may further apply the invention and each component described in the means to solve a subject to the combination of each component of each Example. About the same effect by the same composition of a plurality of examples, it does not refer to every example one by one. Furthermore, the present invention is not limited to the embodiments described above. It will be apparent to those skilled in the art that various modifications, improvements, combinations, and the like can be made.

DESCRIPTION OF SYMBOLS 1 Drive recorder 3 Windshield 4 Room mirror 5 Cigar socket 6 Power cable 10a, 10b SD card insertion slot 11 Display 12 Operation button 13 Joint rail 14a, 14b SD card reader 15 Speaker 16 GPS receiver 17, 17a, 17b Camera 18 Acceleration Sensor 19 Communication circuit 20 Controller 20a CPU
20b ROM
20c RAM
20d Timer 20e, 20f DMA controller 20g, 20h Buffer memory 21 Database 22a, 22b SD card 22c SDIO card 30 Video display area 31 Mode display area 32 Time display area 33 Video captured by camera 34 Image showing alarm information 37 Frame rate An icon 38 indicating an SD card in an operating state 39 An icon indicating an SD card format 40 An icon 41a indicating an interface standard of a medium housing unit An icon 41b indicating an SD card for recording video An SDIO card having a wireless communication function An icon 42a An icon 42b indicating an SD card for recording video An icon 43 indicating an SD card recording an event condition A mark 44a to 44d indicating that an event has occurred. Buttons 45a and 45b Icons 46a and 46b indicating correspondence between the camera and the SD card reader Connection terminal 47a Icon 47b indicating that the video is recorded on the SD card Icon indicating that the video recorded on the SD card is displayed on the display 48 Current image 49 Past image 50 Icon 51a Icon 51b indicating that the image captured in the vehicle is recorded on one SD card 51b Image captured in the state of being taken out of the vehicle on the other SD Icon 52a indicating recording on a card Icon 52b indicating recording of video on one SD card Icon 53a, 53b indicating that key information is stored Icon 55 indicating SD card Images are alternately recorded Icon 60a, 60b indicating the correspondence with the SD card Identification mark 61a, 61b Seal 62a, 62b Write prohibition switch 63 Actuator

Claims (32)

At least two medium storage units for holding removable storage media;
A function of accessing a storage medium accommodated in each of the medium accommodation units, and a function of storing an image captured by an imaging device mounted on a vehicle in a storage medium held in at least one of the medium accommodation units Control means to have,
And a notification means for notifying a user of a role of a storage medium accessed by the control means. The control means has a function of alternately recording video images taken by the same imaging device on a storage medium respectively held in the medium storage unit for each time unit;
2. The control means according to claim 1, further comprising a function of notifying a user through the notification means that the storage media respectively held in the medium accommodating portion have a role of constituting one video. The system described.   When the control unit detects that the storage medium held in one of the medium storage units is removed, the storage medium held in the other medium storage unit also plays the video through the notification unit. The system according to claim 1, wherein the system has a function of notifying a user that it is necessary. Furthermore, it has a communication means for transmitting video,
The control means displays a video that has not been transmitted via the communication means among videos recorded in a storage medium held in one of the medium storage units on a storage medium held in the other medium storage unit. The system according to claim 2, wherein the system has a function of reading and transmitting during a recording period.   The control means has a buffer memory for temporarily storing the video, and transfers the video captured by the same imaging device from the buffer memory to the storage medium held in one of the medium accommodating units. The system according to any one of claims 1 to 4, wherein the system has a function of starting transfer to a storage medium held in the other medium storage unit before finishing. At least two of the medium accommodating units support interface standards having different maximum writing speeds,
The control means writes the video imaged by the imaging device in real time to a storage medium held in the medium housing unit that supports the interface standard with the higher maximum writing speed, and in real time according to a command from the user The system according to any one of claims 1 to 5, which has a function of copying a written video to a storage medium held in the other medium storage unit. At least one of the medium accommodating units supports an interface standard with a storage medium having a wireless communication function,
The control unit reads a video from a function of causing a storage medium having a wireless communication function to transmit a video captured by an imaging device and a previous storage medium held in the other medium storage unit. The system according to claim 1, wherein the system has a function of transmitting a received video. When the storage medium in which the video imaged in the past by the imaging device mounted on the vehicle is recorded together with the imaged position information is held in one of the medium accommodating units,
8. The control unit according to claim 1, wherein the control unit has a function of reading an image having corresponding position information from a storage medium held in the medium storage unit and displaying the image on the display unit based on a current position of the vehicle. The system according to claim 1.   The system according to claim 8, wherein the notification unit has a function of notifying a user of the medium storage unit that should hold a storage medium in which a video to be displayed on the display unit is recorded, out of the two medium storage units. . Furthermore, it has an internal power supply for supplying power to the control means when the supply of power from the outside is stopped,
The control means records an image on a storage medium held in one of the medium accommodating portions when power is supplied from the outside, and from the internal power supply when the supply of power from the outside is stopped. The system according to any one of claims 1 to 9, which has a function of receiving a power supply and recording an image on a storage medium held in the other medium storage unit.   The control means records an image captured by an imaging device mounted on a vehicle in a storage medium held in one of the medium housing units, and adds another image to the image captured by the imaging device mounted on the vehicle. The system according to any one of claims 1 to 10, which has a function of recording a composite image obtained by superimposing images on a storage medium held in the other medium storage unit.   The control unit has a function of recording videos captured by two imaging devices in storage media held in different medium storage units, and the notification unit includes two imaging devices and the medium storage unit. The system according to claim 1, wherein the correspondence relationship is notified to the user.   The control means has a function of recording video captured by the same imaging device on storage media held in the two media storage units with different recording conditions of at least one of frame rate and resolution. The system according to any one of claims 1 to 12, wherein the notification unit has a function of notifying a user of information based on a difference in recording conditions. Recording conditions of at least one of a frame rate and a resolution are stored in a storage medium held in at least one of the medium storage units,
The control unit has a function of reading a recording condition stored in a storage medium held in the medium accommodating unit and recording a video based on the read recording condition. The system according to item 1.   The control unit according to any one of claims 1 to 14, wherein the control unit has a function of recording, in real time, images captured by the same imaging device on both of the storage media held in the at least two medium storage units. The system described in the section.   The control means has a function of verifying when recording a video on a storage medium held in the medium storage unit, and when a verification error occurs during recording on a storage medium held in one of the medium storage units The system according to any one of claims 1 to 15, which has a function of recording a video in which a verification error has occurred in a storage medium held in the other medium storage unit. Key information indicating access authority is stored in a storage medium held in at least one of the medium storage units,
The control means reads the key information stored in the storage medium held in the medium accommodation unit, and accesses the storage medium held in the medium accommodation unit based on the read key information. The system according to any one of claims 1 to 16, which has a function of limiting or permitting.   The system according to claim 17, wherein the notifying unit has a function of notifying a user of the medium accommodating unit that should hold a storage medium storing key information among at least two medium accommodating units.   The control means mutually exchanges an image captured by the imaging device from a time point when the vehicle power is turned on to a time point when the vehicle is turned off, and a part of the image including a time point when a predetermined event occurs. A function of recording in a storage medium held in a different medium storage unit, or an image captured by the imaging device from when the vehicle is turned on to when it is turned off, The function according to any one of claims 1 to 18, which has a function of recording video captured by an imaging device during a period in which the power is turned off, in storage media held in different media storage units. The described system.   The control means records an image captured by an imaging device mounted on a vehicle in a storage medium held in one of the medium accommodation units, and acquires information related to travel of the vehicle acquired from the vehicle on the other side. The system according to any one of claims 1 to 19, which has a function of recording in a storage medium held in a medium storage unit. An event condition, which is a condition for determining that a predetermined event has occurred, is stored in a storage medium held in at least one of the medium accommodating units,
The control means reads the event condition from the storage medium held in one of the medium storage units, records the video imaged by the imaging device on the storage medium held in the other medium storage unit, The system according to any one of claims 1 to 20, which has a function of recording, in association with a video, a mark indicating that an event has occurred when occurrence of an event that satisfies the read event condition is detected.   The control means records a video in a general-purpose file format on a storage medium held in one of the medium storage units, and records a video in a unique format on the storage medium held in the other medium storage unit The system according to any one of claims 1 to 21, which has a function of:   The control unit has a function of initializing a storage medium held in the medium storage unit, and when an operation for initializing a storage medium held in one of the medium storage units is performed by a user, The information specifying the medium storage unit to be initialized specified by, and that the user is in the confirmation waiting state for initialization execution are notified to the user through the notification means, and the initialization is performed after receiving a confirmed response from the user. The system according to any one of claims 1 to 22, which has a function of executing processing.   The control means records, on a storage medium held in the two medium storage units, images having a mutually complementary relationship and identification information for associating the two storage media, in one of the medium storage units. 24. Any one of claims 1 to 23, having a function of notifying a user through the notification means that there is another storage medium that complements each other when the storage medium on which the identification information is recorded is held. The system according to item 1.   The control means has a function of copying a video recorded on a storage medium held on one side of the medium storage unit to a storage medium held on the other side, and further starts a copy process by a user operation. The system according to any one of claims 1 to 24, which has a function of making a reservation. further,
A housing for housing the medium housing unit and the control unit, and an insertion port through which the storage medium passes when the medium housing unit holds the storage medium is provided in the housing for each medium housing unit. And
The two medium storage units are configured to hold storage media having different sizes, and the sizes of the insertion openings are different from each other in accordance with the difference in the size of the storage media to be held. And
The system according to any one of claims 1 to 25, wherein the notification unit notifies a user of a role of a storage medium held in the medium storage unit with a configuration in which the size of the insertion port is different. And a housing for accommodating the medium accommodating portion and the control means.
An insertion port for allowing a storage medium to pass when the storage medium is held in the storage medium is provided in the housing for each storage medium.
One of the insertion openings has a configuration that makes it difficult for the storage medium to pass through the other insertion opening,
The system according to any one of claims 1 to 25, wherein the notification unit notifies a user of a role of a storage medium held in the medium accommodation unit due to a difference in configuration of the insertion slot. And a housing for accommodating the medium accommodating portion and the control means.
In a state where the housing is mounted on a vehicle, one of the medium accommodating portions is disposed at a position where it is more difficult to attach a storage medium than the other medium accommodating portion,
The system according to any one of claims 1 to 25, wherein the notification unit notifies a user of a role of a storage medium held in the medium accommodating unit according to a difference in position of the medium accommodating unit.   The control means has a function of detecting that an error has occurred in each of the storage media held in the two medium storage units, and an error has occurred in the storage medium held in one of the media storage units And detecting the fact that the storage medium in which the error has occurred is removed from the medium accommodating portion, and causing the output means to output a message prompting the user to remove the other storage medium and submit it to the maintenance staff. The system according to any one of 1 to 28. The storage medium held in the medium container has a mechanical write prohibit switch that prohibits a write operation,
The medium storage unit has a function of setting a write-protected state by operating a write-protect switch of a storage medium that is held,
30. The control unit according to claim 1, wherein when the control unit detects that a predetermined event has occurred, the control unit has a function of controlling the medium housing unit and setting a write-protect switch of the storage medium to a write-protect state. The system described in. When a video for sales promotion is recorded on a storage medium held in one of the medium storage units,
The control means records, in place of the imaging device mounted on the vehicle, the video imaged by the imaging device displayed in the store on the storage medium held in the other medium storage unit, and a predetermined time has elapsed. The system according to any one of claims 1 to 30, wherein the system has a function of stopping recording and displaying the recorded video on a display unit.   The system according to any one of claims 1 to 31, wherein the notification unit has a function of notifying a user of a mutual relationship between information stored in storage media held in two medium storage units.