JP7187063B2 - system - Google Patents

Description

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

2. Description of the Related Art Japanese Patent Application Laid-Open No. 2002-200003 discloses an image recording apparatus that continuously records captured images and that has improved stability in the recording operation of the captured images. The image recording apparatus disclosed in Patent Document 1 includes an imaging camera for acquiring image information, a medium storage unit that removably stores a storage medium, and a control capable of executing control for recording a captured image on the storage medium. means. The control means deletes captured images in order from the oldest image capturing timing and sequentially secures a free space in the storage area of the storage medium and stores new captured images in the free space, thereby erasing the past predetermined period of time. A control mode in which a series of captured images over a period of time is recorded using a storage medium can be executed. This image recording apparatus has at least two medium storage units.

JP 2014-220803 A

If at least two medium storage units are provided, for example, the user may be confused as to which medium storage unit should store the storage medium. For example, it may be difficult for the user to understand what information is stored in the storage medium removed from one medium container. SUMMARY OF THE INVENTION An object of the present invention is to provide a system that improves convenience by reducing user's confusion or 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 media receptacles for holding removable storage media;
It has a function of accessing storage media accommodated in each of the medium storage units, and a function of storing an image captured by an imaging device mounted on a vehicle in the storage medium held in at least one of the medium storage units. a control means having
The system may also include notifying means for notifying the user of the role played by the storage medium accessed by the control means.

The user can remove the storage medium storing the video imaged by the imaging device mounted on the vehicle from the medium container and use it in another device. Furthermore, the user can recognize the role of the storage medium held or held in the medium container. A user who recognizes the role of the storage medium can appropriately handle the storage medium according to its role when attaching or detaching the storage medium to or after removing the storage medium from the medium storage section. Therefore, convenience for the user is enhanced.

For example, before the user mounts the storage medium in the medium container, the notification means may notify the user of the role played by the storage medium mounted in the medium container. The user can know the role played by the storage medium before loading the storage medium into the medium container. For example, when the user removes the storage medium from the medium container, the notification means may notify the user of the role played by the storage medium loaded in the medium container. The user can know the role played by the storage medium removed from the medium container. It is particularly preferable that the notification means inform the user of the role played by the storage medium both before the user attaches the storage medium to the medium container and when the user removes the storage medium from the medium container.

For example, an SD card, a micro SD card, an XQD card, or the like can be used as a removable storage medium. For example, it is preferable to provide an insertion opening such as a slot in the housing of the system corresponding to the medium containing portion. For example, the user can load the storage medium into the medium container through the insertion slot and remove the storage medium from the medium container.

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

Next, the roles played by the storage media held in the two medium storage units will be exemplified.

(1.1) For example, images captured by an imaging device mounted on a vehicle may be recorded on both of the two storage media. This video includes, for example, video from when the power of the vehicle is turned on until it is turned off, or video of a predetermined time before and after the time when a predetermined event occurs while the power of the vehicle is on. , during the parking period, or during a predetermined period of time before and after the occurrence of a predetermined event during the parking period. A user can use a system including this imaging device as a drive recorder.

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

For example, one video may be alternately recorded in two storage media at regular time intervals, and the two storage media may complement each other to form one video. For example, by switching between two storage media in a short period of time for each unit of video writing to the storage medium and alternately recording one video on the two storage media, the apparent writing speed of the two storage media can be reduced to should play a role in improving For example, when a temporary write error occurs in one storage medium, the other storage medium may serve as a substitute for the storage medium in which the write error occurred.

For example, one of the storage media has the role of constantly recording video from the time the power of the vehicle is turned on to the time the vehicle is turned off, and the other storage medium is used to record the time when a predetermined event occurs. It is good to have the role of recording the video before and after the video. For example, one storage medium may have the role of constantly recording images while the vehicle is on, and the other storage medium may have the role of recording images while the vehicle is parked.

For example, the format of one storage medium may be a general-purpose format to play a role as a storage medium for playing video on another general-purpose playback device, and the format of the other storage medium may be a unique format. It is recommended that the format serve as a storage medium for reproducing the video only with this system and a device having a unique reproduction function.

For example, one of the storage media can record video before and after the occurrence of a specific event (type 1 event), and the other storage medium can store an event (type 1 event) different from the type 1 event (type 1 event). It is preferable to play a role of recording images before and after the occurrence of the type 2 event). Information defining the first type event and the second type event is preferably stored in advance in the control means.

For example, two imaging devices (a first imaging device and a second imaging device) are installed in a vehicle, and one of the storage media has the role of recording the video imaged by the first imaging device, It is preferable that the other storage medium has the role of recording the image captured by the second imaging device.

(1.2) One of the storage media has the role of recording the image captured by the imaging device mounted in the vehicle, and the other storage medium stores the image captured by the imaging device when it is taken out of the vehicle, for example, outdoors. It is preferable to have a role of recording an image captured while being attached to equipment used for sports. Examples of outdoor sports include snowboarding, skiing, surfing, windsurfing, cycling, and jogging. A user can use a system including this imaging device as a drive recorder or as an action camera.

(1.3) One of the storage media has the role of recording the image captured by the imaging device mounted on the vehicle (the image around the vehicle, especially the image in front of the vehicle) as it is, and the other storage medium is used to store, for example, the vehicle It is preferable that the image pickup device mounted on the camera record an image obtained by synthesizing another image with the image picked up by the image pickup device. As another image, it is preferable to use a warning image or the like that informs that the radar device is approaching. By fast-forwarding and reproducing the image synthesized with this warning image, it is possible to easily find the image during the period in which the radar apparatus was approached. It is possible to confirm how the driver drove when the warning or the like was issued by comparing it with the content of the warning.

(1.4) One storage medium has the role of recording images captured by an imaging device mounted on a vehicle, and the other storage medium stores, for example, a log in which vehicle information during travel is arranged in chronological order. It is better to give it the role of recording data.

For example, one storage medium has the role of recording images around the vehicle, especially the front, and the other storage medium is used to check whether there is dangerous driving such as sudden departure, sudden turns, sudden braking, and sudden acceleration. It is better to have a role to record log data that is the basis for

(1.5) One storage medium has the role of recording video captured by an imaging device mounted on a vehicle, and the other storage medium extracts a specific image from the video captured by the imaging device. It is preferable to have a role of recording a template image to be used. The template image can be, for example, an image of various traffic signs, an image of a specific person, an image of a specific vehicle number, or the like. By performing image recognition based on the image of the traffic sign on the image acquired in real time, it is possible to detect the traffic rules applied to the current position. A specific person and a specific vehicle can be found by performing image recognition based on an image of a specific person and an image of a specific vehicle number in images acquired in real time.

(1.6) Key information that allows one storage medium to record video captured by an imaging device mounted on a vehicle, and the other storage medium to permit various accesses to the system. (information indicating access authority). It is possible to prevent a user with only lower access authority from performing a process that is permitted only by a person with higher access authority. This can improve security.

(1.7) To make one storage medium play the role of recording video captured by an imaging device mounted on a vehicle, and specify conditions for marking the recorded video in the other storage medium. It is good to have the role of storing the information that is the basis of the Preferably, the control means puts a mark indicating the occurrence of the event on the image at the time of detecting the occurrence of the event that satisfies the marking condition. After recording the video, it is possible to easily retrieve the video at the time when a predetermined event occurred by using the mark attached to the video. A storage medium that has the role of recording video also has the role of recording a mark that indicates when a predetermined event has occurred.

(1.8) One of the storage media has the role of recording images taken by an imaging device mounted on a vehicle that regularly travels a predetermined route, and the other storage medium stores a predetermined It is preferable to have a role of recording images captured by an image capturing device mounted on a vehicle that has traveled on the designated route. Preferably, the control means reproduces a video imaged in the past in a vehicle traveling along a predetermined route. The driver can drive without hesitation along the route determined based on the image being reproduced.

(1.9) One of the storage media is given the role of recording the image captured by the imaging device displayed in the store instead of the imaging device mounted on the vehicle, and the other recording medium , the role of recording video footage for sales promotion should be given. A store can use a system including this imaging device as a demonstration machine for sale. In addition, by playing promotional video footage, consumers can be made aware of the capabilities and performance of the system.

As notification means, for example, a display device that displays an image, an audio output device that outputs audio, a communication device that transmits a command to display an image on the display device or to output audio to the audio output device, and a position that accommodates a storage medium may be characters or figures displayed on the surface of the housing in association with the . In addition, as a notification means, in a configuration in which a storage medium is loaded into a medium storage portion through an insertion port of a housing, a configuration in which the size of the insertion port is changed, a configuration in which the shape of the insertion port is varied, and a storage medium is inserted. A configuration in which the directions are different and a configuration in which the degree of difficulty of access to the insertion port is varied may be used.

For example, the role played by the storage medium is not fixed to one example (role mode) exemplified in (1.1) to (1.9) above. or changeable. For example, it is preferable to have a function of allowing the user to select which mode the storage medium will play. When the storage media are removed from all the medium storage units, it is preferable to return the mode of the role played by the storage media to the preset basic mode. The role mode may not be determined before the storage medium is mounted in the medium housing portion, and the role mode may be determined after the storage medium is mounted in the medium housing portion.

(2) the control means has a function of alternately recording images captured by the same image capturing device in storage media held in the medium storage units in units of time;
The control means may further have a function of informing the user through the notification means that the storage media respectively held in the medium storage units are grouped together and play a role in composing one video. .

The user can easily notice that a set of storage media held in each of the plurality of medium storage units constitutes one video. After removing the storage medium from the medium container, the user realizes that it is preferable to handle a plurality of storage media as a set, so that a situation arises in which the set of storage media disperses, making it impossible to compose one video. it gets harder.

For example, when a storage medium held in one medium container is removed, the control means may issue a voice or voice command so that the storage media held in other medium containers are also removed and carried or stored together. It is good to prompt the user with an image. For example, when a storage medium is held in one medium container, the control means may audibly or visually prompt the user to hold the other storage medium in the other medium container. For example, the unit of time for switching storage media for recording video may be from several minutes to several tens of minutes.

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

When the user removes the storage medium from the medium container in order to reproduce the video recorded on the storage medium with another device, it is difficult for the user to forget to remove the other storage medium. As a result, the video can be played back on another device without going back. For example, in the configuration (2) above, the user can make a set of two storage media in which video images are alternately recorded in certain time units, and can reproduce the video images on another device. For example, a video may be recorded in one storage medium, and information representing the authority to reproduce the video (hereinafter referred to as key information) may be stored in the other storage medium. At this time, the user can combine the storage medium in which the video is recorded and the storage medium in which the key information is stored, and can reproduce the video on another device.

(4) further has communication means for transmitting video,
The control means stores a video image, which is recorded in the storage medium held in one of the medium housing units and has not been transmitted through the communication means, to the storage medium held in the other medium housing unit. It is preferable that the system has a function of reading and transmitting during the recording period.

After recording the video on the storage medium, the control means can transmit the recorded video to the external device. The user can play the video on the external device without removing the storage medium from the medium storage unit. Removable storage media typically exhibit a tendency for writing and reading speeds to drop significantly if reading is performed while data is being written. During the recording of video on a storage medium, the video recorded on that 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 the video and also plays a role of storage means for storing the video to be transmitted via the communication means until the transmission is completed.

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

(5) The control means has a buffer memory for temporarily storing an image, and transfers the image captured by the same imaging device from the buffer memory to the storage medium held in one of the medium storage units. It is preferable that the system has a function of starting transfer from the buffer memory to the storage medium held in the other medium container before the transfer ends.

The apparent writing speed can be made faster than when video is recorded on a single storage medium. As a result, it becomes possible to record high-frame-rate, high-resolution video that cannot be written in time with the writing speed to one storage medium. The two storage media record a short-time video in which a temporally continuous video is divided into small pieces on the time axis, and two storage media are combined to record one temporally continuous video. play a role in composing.

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

A buffer memory should be prepared for each medium container. To buffer a new video in a buffer memory to which video transfer is completed, without depending on the transfer state of the video in the other buffer memory, when processing for transferring the video in one buffer memory to a storage medium is completed. can be done. The memory space in one buffer memory may be divided into an area for one medium containing portion and an area for the other medium containing portion.

(6) at least two of the medium housing units support interface standards with mutually different maximum writing speeds;
The control means writes, in real time, the image captured by the imaging device to the storage medium held in the medium storage unit that supports the interface standard with the faster maximum writing speed, and in real time according to a command from the user. It is preferable that the system has a function of copying the written video to the storage medium held in the other medium storage unit.

High frame rate and high resolution video can be recorded in real time as compared to recording video in real time on a storage medium with a slower writing speed. When a video recorded on a storage medium with a faster writing speed is copied to another storage medium, the destination storage medium does not need to have a high writing speed. Therefore, a less expensive storage medium can be used as the storage medium with a slower writing speed. As a result, 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 containing section that supports the interface standard with a high maximum writing speed serves, for example, to record video in real time, and the storage medium held in the other medium containing section has already recorded data, for example. It plays the role of copying the video that is being played. In particular, since this system has the configuration (1) above, 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 faster maximum writing speed, and an SD card can be used as a storage medium with a lower maximum writing speed.

For example, the notification means may include information (eg, position) specifying a medium containing section to which a storage medium for recording video in real time should be mounted, and information (eg, position) specifying a medium containing section to mount a storage medium for copying. ) may be displayed on the display device.

(7) at least one of the medium housing units supports an interface standard between a storage medium having a wireless communication function;
The control means has a function of transmitting an image captured by the image pickup device to a storage medium having a wireless communication function, and reads the image from the other storage medium held in the medium storage unit and reads out the image. It is preferable that the system has a function of transmitting a video image.

An image captured by the imaging device can be wirelessly transmitted to an external device via a storage medium having a wireless communication function. As a result, the user can reproduce the video on the external device without removing the storage medium from the medium container. The storage medium held in one of the medium housing sections serves to wirelessly transmit video, and the storage medium held in the other medium housing section serves to record video. Note that the storage medium that plays the role of wireless transmission may also play the role of recording video.

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

It is further preferable that the two medium housing units support an interface standard between storage media having wireless communication functions. For example, when video is being recorded on a storage medium held in one of the medium housing units, video already recorded in the storage medium held in the other medium housing unit may be transmitted to that storage medium. can be sent using the function.

(8) When one of the medium storage units holds a storage medium in which a video imaged in the past by an imaging device mounted on a vehicle is recorded together with imaged position information,
The control means may be a system having a function of reading out an image corresponding to the corresponding positional information from the storage medium held in the medium containing section and displaying it on the display means based on the current position of the vehicle.

The driver can drive while referring to the image displayed on the display means. The image captured in the past may be captured while the vehicle is traveling along the recommended travel route. For a driver unfamiliar with the recommended travel route, the image displayed on the display means provides useful information for traveling the recommended travel route. For example, the storage medium held in one of the medium storage units has the role of recording video in real time, and the storage medium held in the other medium storage unit has the function of providing video from past travels. .

(9) In the system of (8) above, the notification means informs the user of which of the two medium containing parts should hold the storage medium recording the video to be displayed on the display means. The system should have a notification function.

The driver can easily know in which medium storage unit the storage medium in which the video imaged in the past is recorded is to be held. For this reason, it is less likely that the storage medium will be incorrectly attached to the medium container.

(10) further comprising an internal power source that supplies power to the control means when the supply of power from the outside stops;
The control means records an image on the storage medium held in one of the medium housing units when power is supplied from the outside, and records video from the internal power supply when the power supply from the outside is stopped. It is preferable that the system has a function of receiving power supply and recording an image on the storage medium held in the other medium storage unit.

A user can take the system out of the vehicle and image a desired object. It is possible to separately store a storage medium in which images taken while the system is mounted in a vehicle and a storage medium in which images taken out of the vehicle are recorded. While the system is installed in the vehicle, the image captured by the imaging device is recorded in the storage medium held in one of the medium storage units, while the image is recorded outside the vehicle from the storage medium held in the other medium storage unit. Recorded video can be read out.

For example, the vehicle can be driven to go on a holiday, and the system can be taken out of the vehicle at the holiday destination and used as an action camera. A video captured at a vacation spot can be played back in the car on the way back from the vacation.

For example, one storage medium plays the role of recording video in real time while the vehicle is running, and the other storage medium plays the role of recording the video taken when it is used as an action camera, and as an action camera. It plays a role of providing in-vehicle images captured during use. For example, the notification means may include information (for example, position) specifying a medium storage unit holding a storage medium for recording images while the vehicle is running, and a storage medium for recording images taken when the vehicle is being used as an action camera. It is preferable that the display means displays information (for example, the position) specifying the medium containing portion holding the . This allows the user to easily know which video is recorded in which storage medium held in which medium container.

Operate the system as a drive recorder while the system is powered externally, and operate the system as a parking surveillance recorder when the external power supply is stopped while the system is operating as a drive recorder. and operate as an action camera when the main switch of the system is turned on while power is not supplied to the system from the outside. When operating as a drive recorder or parking surveillance recording recorder, images are recorded in the storage medium held in one medium container, and when operating as an action camera, it is held in the other medium container. It is preferable to record the video on a storage medium that has been stored.

After operating as an action camera, when the system is installed in a vehicle and external power supply is started, the video recorded during the period of operation as an action camera may be automatically played back. The user can immediately appreciate and enjoy the video captured by the action camera in the vehicle.

After operating as an action camera, the current image picked up by the imaging device is displayed on the display means until a predetermined time elapses from the time the system is mounted on the vehicle and the power supply from the outside is started. Alternatively, after a predetermined period of time has elapsed, the video recorded during the operation as an action camera may be automatically played back. The user can adjust the posture of the imaging device while viewing the image displayed on the display means while the current image captured by the imaging device is being displayed on the display means.

(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 storage units, and records 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 in which another image is superimposed on the other image in the storage medium held in the other medium storage unit.

When the user confirms the video recorded while the vehicle is running after driving, the user can use the synthesized image for various purposes, and can leave the unprocessed video in the other storage medium as it is. can. When the video is played, the composite image can be contrasted with the raw video. Raw video provides a detailed picture of the vehicle's surroundings at the time of the alarm. Furthermore, since it can be inferred that the unprocessed video has not been tampered with, it is considered to have higher admissibility than the composite image. One storage medium plays a role of recording an unprocessed image, and the other storage medium plays a role of recording a synthesized image obtained by synthesizing an image such as alarm information with a captured image.

For example, an image generated by a computer may be used as the image to be superimposed on the image captured by the imaging device. As the computer-generated image, for example, alarm information detected by a device such as a radar detector may be employed. The warning information includes, for example, information indicating the distance to a warning target such as a radar speed control device, and information calling attention to the driver, such as information issued to the driver prompting the driver to slow down. The person in charge of managing the vehicle can confirm how the driver traveled when the warning was issued.

The alarm information may be superimposed on the video and recorded as an image, and the audio information may be recorded by outputting a sound to notify the alarm. For example, the storage medium storing the raw video may record the sound picked up by the microphone in the vehicle, and the storage medium recording the composite image may record only the sound of the alarm.

As the composite image, it is preferable to superimpose a translucent image representing the alarm information on the image captured by the imaging device. It is preferable to divide the screen and display a map around the vehicle position at the time of alarm issuance on a part of the screen.

(12) The control means has a function of recording images captured by two image capturing devices in storage media held in different medium storage units, and the notification means includes two image capturing devices and the media. It is preferable that the system informs the user of the corresponding relationship with the storage section.

The two storage media play a role of recording images captured by different imaging devices. The notification means preferably displays, as an image or character information, the correspondence relationship between, for example, two medium housing units and an imaging device that captures images to be recorded in the storage media held in the medium housing units. It is possible to record images of a wide area that cannot be covered by one imaging device. The user can easily know which storage medium held in which medium container stores the image captured by which imaging device. The user can remove the storage medium in which the video to be checked is recorded from the medium storage section.

The control means preferably informs the user through the notification means that the images recorded in the storage media respectively held in the two medium storage units are images captured in different areas during the same period. A user who notices the notification through the notification means can associate the images captured during the same period, for example, by simultaneously displaying the images taken at the same time on the display means for confirmation.

When the user removes only the storage medium held in one medium housing section, the control means detects whether the video imaged during the same period is recorded in the storage medium held in the other medium housing section. Therefore, it is preferable to prompt the user through the notification means to also remove the storage medium held in that medium storage unit. This notification makes it less likely that the user will forget to remove the storage medium from the medium container.

When checking images on the storage media held in the two medium storage units, it is preferable that the playback device synchronizes the two images and simultaneously displays the images 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, it is preferable to use a device that images the front and rear of the vehicle, or a device that images the front and the interior of the vehicle. After the vehicle is running, it is possible to check the conditions both in front of and behind the vehicle, or both in front of and inside the vehicle.

For example, two imaging devices may be mounted on a work vehicle, one imaging the front of the vehicle and the other imaging the work location. For example, it is preferable to use a forklift as the work vehicle on which the imaging device is mounted, and to set the work location to be imaged by one imaging device as the range of the lifting operation of the fork. The user can confirm the running status of the work vehicle and the working status by video after the work is completed.

For example, it is preferable to mount two imaging devices on a vehicle operating in a premises, one imaging the front of the vehicle and the other imaging the driver. By viewing the images captured by the two imaging devices, it is possible to verify whether or not the driver observes the driving rules in the premises. For example, it can be verified whether or not the user has pointed and cheered when making a left or right turn. If audio is added to the video, it is possible to verify whether or not the player shouted "right, left," at a specific location.

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 selects a storage medium storing images captured by the omnidirectional camera and a storage medium storing images captured by a normal camera. can be easily distinguished.

It is preferable that one of the two imaging devices is housed inside the housing of the system and the other is 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 with suitable performance depending on the object to be imaged and the purpose of the imaged image. In addition, the arrangement position of the imaging device is not affected by the position of the housing of the system, and the degree of freedom in arranging the imaging device increases. It is preferable to make the shape of the connection terminal on the housing side of the system for connecting the external camera different from each other. It is possible to prevent connection errors between two different types of external cameras.

Three or more medium housing units may be provided, and as many imaging devices as the medium housing units may be prepared. By preparing three or more medium storage units and imaging devices, it is possible to simultaneously capture a wider range of images and record them in corresponding storage media.

(13) The control means records images captured by the same image capturing device into the storage media held in the two medium storage units with different recording conditions of at least one of frame rate and resolution. function, and the notification means may be a system having a function of notifying the user of information based on differences in recording conditions.

The storage medium recorded under low frame rate or resolution recording conditions can be used for long-time recording, and the storage medium recorded under high frame rate or resolution recording conditions can be used for long-time recording. It can be used for more detailed video analysis. Based on the information notified through the notifying means, the user can easily determine which storage medium held in which storage medium should be viewed in accordance with the intended use of the image.

Since the storage medium for long-time recording is rewritten less times than the storage medium for detailed analysis, it has a longer life. For example, even if no video is recorded because the storage medium for detailed analysis has exceeded its service life, the video remains on the storage medium for long-time recording. Also, the probability that the two storage media will reach the end of their lives at the same time is low. Therefore, even if one of the storage media reaches the end of its life, the video will be recorded normally on the other storage medium. do not have.

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

(14) recording conditions of at least one of frame rate and resolution are stored in a storage medium held in at least one of the medium storage units;
The control means may be a system having a function of reading recording conditions stored in a storage medium held in the medium housing unit and recording video based on the read recording conditions.

By pre-storing the recording conditions in the storage medium held in the medium container, the user can record the video in the storage medium under the desired recording conditions.

In addition to the frame rate and resolution, the recording conditions may include, for example, a condition for judging the occurrence of an event when recording images before and after the occurrence of the event, a condition for whether or not to record audio, and the like. For the 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. In addition to the detection value of the acceleration sensor, other types of events may be employed as recording conditions.

The storage media held in the medium storage units play a role of recording video, and the storage media held in at least one of the medium storage units play a role of storing recording conditions. Preferably, the notification means notifies the user of information (for example, position) specifying the medium container holding the storage medium storing the recording conditions.

When recording conditions are stored in both of the storage media held in the two medium housing units, the control means validates the recording conditions stored in the storage medium held in one specific medium housing unit. However, it is preferable that the recording condition stored in the storage medium held in the other medium container is not adopted, and the video is recorded in the two storage media based on the effective recording condition. The user only has to hold the storage medium storing the recording conditions to be actually recorded in one specific medium container, and does not need to know the recording conditions stored in the other storage medium.

The control means respectively 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 each storage medium. may 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. By setting the recording conditions in the control means in advance, the user can perform recording based on the desired recording conditions without checking the recording conditions stored in the storage medium each time the storage medium is held in the medium container. Video can be recorded.

The control means includes a mode for validating the recording conditions stored in the storage medium held in one specific medium container, a mode for validating both the recording conditions stored in the storage medium, and a mode for validating both the recording conditions stored in the storage medium. It is preferable to allow the user 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 of the system.

Preferably, the control means causes the display means to display a plurality of modes to be selected by the user as a menu. The user only has to select one mode from the menu. When a storage medium in which no recording conditions are stored is held in the medium housing section, the mode for validating the recording conditions stored in the storage medium held in the medium housing section is excluded from the menu. Good to keep. When the recording conditions are not set in the control means, it is preferable to exclude from the menu the mode for validating the recording conditions set in the control means. The user can see a list of selectable modes.

It is preferable to store the recording condition and the priority in each storage medium, and to enable the recording condition with the higher priority by the control means. If the priorities are the same, it is preferable to determine which recording condition to activate based on the timing at which the priorities are set. For example, it is preferable to validate the recording condition whose set time is newer. Conversely, the recording condition with the earlier set time may be validated. It is preferable to set in advance in the control means whether to validate 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 in both of the storage media held in at least two of the medium storage units.

Even if a write error occurs in the storage medium held in one of the medium housing units and video is not recorded, the video can be normally recorded in the storage medium held in the other medium housing unit. can. Therefore, it is possible to avoid the situation where no image remains. It is possible to remove the storage medium from only one of the medium storage units and reproduce the video on another device such as a personal computer.

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

The control device preferably stores information indicating that there is another storage medium that records the same video and information that associates the two (pairing information) in each storage medium that records the same video. The control means reads the pairing information of the storage media held in one medium container to identify the presence or absence of paired storage media storing the same video and to identify the paired storage media. can be done.

(16) The control means has a function of verifying when a video is recorded on the storage medium held in the medium containing section, and a verify error occurs during recording on the storage medium held in one of the medium containing sections. It is preferable that the system has a function of recording the image in which the verify error has occurred in the storage medium held in the other medium storage unit when the verify error occurs.

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

The storage media held in the two medium storage units play a role in recording video by complementing each other even if a verify error occurs in one of the storage media when recording video. For example, the notification means may notify the user that one video is recorded on the storage media held in the two medium storage units so as to complement each other.

For example, if it is determined that no verify error has occurred when a positive acknowledgment (ACK) signal is returned when writing video to the storage medium, and it is determined that a verify error has occurred when a negative acknowledgment (NAK) signal is returned. good. Alternatively, the presence or absence of the verification error may be determined by reading out the recorded video and confirming the consistency of the data.

If a verify error occurs and the video recording destination storage medium is changed and a verify error also occurs in the changed storage medium, the video recording destination may be returned to the original storage medium. If the cause of the verification error is temporary, there is a possibility that the video can be recorded normally 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 storage units;
The control means reads out key information stored in a storage medium held in the medium housing unit, and controls access to the storage medium held in the medium housing unit based on the read key information. The system should have a function to restrict or permit.

A storage medium held in one medium housing unit plays a role of recording video, and a storage medium held in the other medium housing unit indicates access authority to the storage medium held in the medium housing unit. Plays the role of storing key information. By restricting access according to key information, system security can be enhanced. For example, the control means may have a function of operating in either an administrator mode or a user mode. The key information to be stored in the storage medium may be permission of operation in administrator mode, permission of operation only in user mode, or the like. For example, when operating in the administrator mode, the control means can initialize the storage medium held in the medium container, but when operating in the user mode, the control means can initialize the medium. It is preferable to prevent initialization processing of the storage medium held in the storage unit. For example, the information stored in the storage medium may be divided into information that can be viewed only by administrators and information that can be viewed by general users. When operating in the administrator mode, the control means can read information that only the administrator can view, but when operating in the user mode, it can read information that only the administrator can view. It should be made unreadable.

Information for driver guidance may be stored in a storage medium for storing key information. Preferably, the control means reads the information for driver guidance and causes the output means to output the information. As the output means, it is preferable to use, for example, a display means for displaying an image or a sound generating means for outputting a sound. The driver is motivated to drive safely by noticing the information output to the output means. The manager may store information for driver guidance in a storage medium for each driver based on the driving habits of the driver and pass the information to the driver.

For example, for a driver who has a habit of ignoring stoppages, it is preferable to give a storage medium storing information prompting a stoppage. The control means preferably causes the output means to output information prompting a stop when the image captured by the imaging device is analyzed and the stop sign is detected. As the information prompting the user to stop, for example, it is preferable to output a voice saying "Let's stop at a place with a stop sign." For example, for a driver who frequently turns abruptly, it is preferable to give a storage medium in which information to urge him not to turn abruptly is stored.

The manager can see the images recorded all the time while the vehicle is running, and can know the driving habits of each driver. In addition, by associating the video recorded on the storage medium with the position information, it is possible to specify the location where the driver has performed dangerous driving in the past. The manager should store this position information together with the information for driver guidance. The control means preferably causes the output means to output information calling attention not to drive dangerously when it is detected that the vehicle has approached a place where dangerous driving has been performed in the past. Further, when the control means detects the occurrence of dangerous driving similar to the dangerous driving stored as information for driver guidance, the control means preferably causes the output means to output information calling attention not to perform the dangerous driving. . Further, the control means preferably causes the output means to output information calling attention not to perform dangerous driving when an event that is predicted to cause dangerous driving occurs. For example, when a traffic signal is detected in an image captured by an imaging device, it is preferable to output information from the output means to call attention not to ignore the signal. For example, when a pedestrian is detected in the image captured by the imaging device, it is preferable to cause the output means to output information calling attention to the pedestrian.

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

This makes it difficult for a storage medium storing key information to be erroneously attached to the medium accommodating section. For example, as notification means for notifying the user of the role played by the storage medium, it is preferable to provide a mark indicating the key information on the surface of the housing near the medium housing section to which the storage medium storing the key information is to be loaded. Further, when the control means detects that the storage medium storing the key information has been mounted in the wrong medium container, the control means causes the notification means to output information prompting the user to mount the storage medium in the correct medium container. Good.

(19) The control means controls the image captured by the imaging device from the time when the power of the vehicle is turned on to the time when the power is turned off, and a part of the image including the time when a predetermined event occurs. are recorded in different storage media held in the medium storage units, or images captured by an imaging device from the time the vehicle is turned on to the time it is turned off. The system may have a function of recording images captured by the imaging device while the power of the vehicle is turned off in storage media held in different media storage units.

As compared with the case of recording the above-described two videos on one storage medium, the recording capacity as a whole increases. As a result, the time during which the image captured by the imaging device can be recorded from the time the power of the vehicle is turned on until the time the power of the vehicle is turned off (referred to as constant recording) is determined, or the time when the power of the vehicle is turned off The time during which the image captured by the imaging device can be recorded (referred to as parking surveillance recording) is lengthened. When performing constant recording or parking monitoring recording, if the processing of overwriting old video with new video when the free space of the storage medium runs out, the number of times of overwriting can be reduced. This can extend the life of the storage medium.

A storage medium having an appropriate recording capacity should be prepared according to the capacity of the video to be recorded. For example, a storage medium for recording a portion of video including the time when an event occurs (referred to as event recording) does not require the same capacity as a storage medium for constant recording or parking surveillance recording. For this reason, prepare a storage medium with a large capacity for constant recording or parking surveillance recording, and prepare a storage medium for event recording with a smaller capacity than that for constant recording or parking surveillance recording. do it. Thereby, the cost required for the storage medium can be reduced.

The storage medium held in one medium container plays a role of constantly recording images, and the storage medium held in the other medium container plays a role of parking surveillance recording or event recording of images. For example, the notification means may notify the user of information (for example, position) specifying a medium container holding a storage medium for constant recording, parking surveillance recording, or event recording.

The user can remove only the storage medium on which the desired video is recorded from the medium container and reproduce it on an external device. For example, if the user wants to see the video when an event occurs, it is sufficient to remove only the storage medium for recording the event from the medium container.

The "video captured by the imaging device while the vehicle is powered off" includes, for example, video captured while the vehicle is parked. It is preferable to record images captured during the entire period of parking, and it is particularly preferable to record partial images including the point in time when a predetermined event occurs while the vehicle is parked. The events may include, for example, the occurrence of motion in the image being captured, the occurrence of vehicle vibration, the occurrence of loud noise, the opening of the vehicle window, the opening of the vehicle door, and the like. By recording a part of the video including the point in time when the event occurs in the storage medium for parking surveillance recording, it is possible to reduce the capacity consumption of the storage medium.

(20) The control means records an image captured by an imaging device mounted on the vehicle in a storage medium held in one of the medium storage units, and stores information related to vehicle travel obtained from the vehicle. It is preferable that the system has a function of recording on the storage medium held in the other medium storage unit.

The administrator can associate the video stored in the storage medium with the information related to the driving of the vehicle at the time of capturing, and evaluate the driving at the time of capturing the video. The storage medium held in one of the medium housing units plays a role of recording the video imaged by the imaging device mounted on the vehicle, and the storage medium held in the other medium housing unit is used to record the image captured by the imaging device mounted on the vehicle. It plays the role of recording information related to the running of the vehicle. The notification means includes, for example, information (for example, a position) specifying a medium accommodation unit holding a storage medium for recording video, and information specifying a medium accommodation unit holding a storage medium for recording information related to running of the vehicle ( For example, the position) may be notified to the user.

The information related to vehicle travel may include, for example, position information, speed information, acceleration information, and information indicating the operation status of the vehicle. These information can be obtained, for example, through the vehicle's OBD connector. The operation status of the vehicle may include, for example, whether or not the brake is stepped on, and whether or not the direction indicator is turned on.

(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 storage units;
The control means reads an event condition from a storage medium held in one of the medium housing units, records an image captured by an imaging device in a storage medium held in the other medium housing unit, and It is preferable that the system has a function of recording a mark indicating that an event has occurred in association with an image when occurrence of an event that satisfies the read event condition is detected.

A user can quickly find a video to be confirmed or verified by referring to the marks recorded on the storage medium recording the video. As a result, useful images can be extracted from a huge amount of images, and the images can be used effectively. Since the user only has to store the event conditions to be confirmed or verified in the storage medium, the user can easily add or delete the event conditions.

The storage medium held in one of the medium housing units plays a role of storing event conditions, and the storage medium held in the other medium housing unit records video and also when an event that satisfies the event conditions occurs. play a role in remembering The notification means includes information (eg, position) specifying the medium container holding the storage medium storing the event condition and information (eg, position) specifying the medium container holding the storage medium in which the video is recorded. should be communicated to the user.

The event conditions may include, for example, conditions for detecting the occurrence of events that may be caused by driver fatigue, carelessness, or the like. For example, the event conditions include departure from the driving lane, abnormal approach to the vehicle in front, the passage of a certain period of time while the vehicle is stopped even though the vehicle in front has started, and the occurrence of lateral shake, slippage, etc. be able to. The occurrence of these events can be detected by equipping the vehicle with advanced driver assistance systems (ADAS). The manager can make the driver aware of the degree of danger by showing the video of the occurrence of the event 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 is present in the captured video. Images of a specific person or vehicle to be detected may be stored in a storage medium, and the control means may detect the specific person or vehicle using image authentication technology. When a specific person or vehicle is detected, the control means preferably transmits 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 or the like). The information sent to the data center provides valuable clues in locating the person or vehicle being sought.

Event conditions may include, for example, the detection of a vehicle moving erratically or dangerously (dangerous vehicle). Disturbed or dangerous behavior may include, for example, meandering, ignoring traffic lights, speeding, and the like. When the dangerous vehicle is detected, the control means preferably transmits the position information of the detected location, the image at the time of detection, and the like to a data center (for example, a police server or the like). By sharing the presence of a dangerous vehicle among drivers of a plurality of vehicles, it is possible to prevent accidents caused by dangerous vehicles from occurring. A driver of a dangerous vehicle can be instructed not to drive dangerously.

Event conditions may include detection of a person in a particular posture, detection of a pedestrian of a particular age, detection of a bicycle, detection of a particular traffic sign, and the like. It is possible to easily confirm or verify how the driver drove when these events occurred. For example, the person taking a specific posture may include a person raising his hand, a person holding a selfie stick, and the like. The video can verify, for example, whether the driver paused when a person with his hand raised was detected. It can be verified whether the driver slowed down when a person holding a selfie stick was detected. Pedestrians of a particular age group may include children or the elderly. When detecting a child or an elderly person as a pedestrian, it can be verified, for example, whether the driver has slowed down. When various traffic signs are detected, it can be verified, for example, whether the driver has complied with the traffic rules.

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

A storage medium in which video is recorded in a general-purpose file format can be removed from the medium container and played back by a general playback device such as a general-purpose media player of a personal computer. A storage medium on which video is recorded in a unique format can be removed from the medium container and played back 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. play a role. The notification means includes, for example, information (e.g., position) specifying a medium container holding a storage medium for recording video in a general-purpose file format, and medium accommodation for holding a storage medium for recording video in a unique file format. Information identifying the unit (eg, location) may be provided to the user.

For example, the avi file format may be used as a general-purpose file format. As video compression techniques, MPEG2, motion JPEG, H.264, etc. are available. 264, H. H.265 or the like may be applied.

(23) The control means has a function of initializing the storage media held in the medium storage units, and the user performs an operation to initialize the storage media held in one of the medium storage units. and information specifying the medium containing portion to be initialized specified by the user and the fact that the confirmation waiting state of initialization execution is notified to the user through the notification means, and after receiving a confirmed response from the user. , the system should have a function of executing initialization processing.

It is possible to prevent an unexpected storage medium from being initialized due to a user's operation error. As a result, it is possible to prevent the video that is not desired to be deleted from being deleted.

As the information specifying the medium containing portion to be initialized designated by the user, it is preferable that the control means causes the display means to display the information specifying the medium containing portion in characters or images.

(24) The control means records, in the storage media held in the two medium storage units, images having a mutually complementary relationship and identification information that associates the two storage media, and It is preferable that the system has a function of notifying the user through the notifying means that there is another storage medium that complements each other when the storage medium on which the identification information is recorded is held only in the storage unit.

When a user attaches or removes a storage medium to or from the medium storage section, it is difficult for the user to forget to attach or remove one of two storage media that complement each other. It is possible to avoid the occurrence of a situation where two storage media having a mutually complementary relationship are lost and useful images cannot be obtained.

The storage media held in the two medium storage units play a role of recording video images that complement each other. For example, the storage media held in the two medium storage units may play a role of storing identification information for identifying the storage media to be complemented.

As a mutually complementary relationship, for example, video in a part of the time period is recorded in one storage medium and video in the remaining time period is recorded in the other storage medium, and the two complement each other to record the entire period. It is preferable to have a relationship in which an image is formed over a period of time. It is particularly advantageous to divide the image into pieces on the time axis and alternately record the pieces of the image on two storage media.

As a mutually complementary relationship, for example, one is a storage medium initialized in a general-purpose format, the other is a storage medium initialized in a unique format, and the images recorded on both are the same. It is preferable that the relationship is Depending on the device to be played back, the video can be played back by loading a storage medium with a format supported by that device. For example, the FAT format may be adopted as a 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 an image recorded in a storage medium held in one of the medium housing units to a storage medium held in the other medium housing unit, and furthermore, copying is performed by a user's operation. The system should have a function of reserving the start of processing.

It takes a long time to copy video recorded over a long period of time to another storage medium. By making a reservation for the start of copy processing, the user can perform the copy processing when the user is not using this system.

The storage medium held in one of the medium housing sections plays the role of recording the original video, and the storage medium held in the other medium housing section plays the role of the video copy destination. For example, the notification means provides the user with information (eg, position) specifying the medium containing section holding the copy source storage medium and information (eg, position) specifying the medium containing section holding the copy destination storage medium. I should let you know.

It is preferable to allow the user to specify the copy source video. As a copy source video, event-recorded video should be selectable, and constant-recorded video should not be selectable. In general, a constantly recorded video has a significantly larger capacity than an event-recorded video, so copying takes a long time. By making it impossible to select a constantly recorded video as a copy source, it is possible to avoid the occurrence of a situation in which copying takes an unexpectedly long time.

(26) Further, a housing for housing the medium containing portion and the control means is provided, and an insertion opening through which the storage medium passes when the medium containing portion holds the storage medium is provided for each of the medium containing portions. located on the body,
The two medium housing units are configured to hold storage media of different sizes, respectively, and the sizes of the insertion openings are different from each other corresponding to the difference in size of the storage media to be held. cage,
The notification means may be a system that notifies the user of the role of the storage medium held in the medium container by means of a configuration in which the sizes of the insertion openings are different.

The user can see the size of the insertion opening and notice the role of the storage medium loaded into the medium container through the insertion opening. For example, the user realizes that a storage medium loaded through a large insertion slot is unlikely to be lost during transportation, and as a result, the user realizes that a storage medium loaded through the insertion slot is for portable use. Conversely, it should be noted that the storage medium loaded through the smaller slot is, in principle, always intended for use while being loaded in the medium container.

(27) Further, a housing for housing the medium containing portion and the control means is provided, and an insertion opening through which the storage medium passes when the medium containing portion holds the storage medium is provided for each of the medium containing portions. located on the body,
one of the insertion openings has a configuration that makes it more difficult for the storage medium to pass through than the other insertion opening,
The notifying means may be a system that notifies the user of the role of the storage medium held in the medium container according to the difference in the configuration of the insertion slot.

A user can notice the role of the storage medium held in the medium accommodating portion by sensing that it is difficult to pass the storage medium through the insertion slot when the user installs the storage medium. For example, when it is difficult for the user to pass through the insertion slot, the user should ensure that the storage medium that is inserted into the medium container through the insertion slot is not intended for carrying, but is intended to be used as it is in principle. notice. Conversely, when it is easy to pass through the insertion slot, the user notices that the storage medium inserted into the medium container through the insertion slot is for carrying.

For example, an insertion port through which the storage medium is difficult to pass may be provided with a lid that can be opened and closed, and an insertion port through which the storage medium may easily pass may be configured to be open at all times.

(28) further comprising a housing for housing the medium containing section and the control means;
one of the medium housing portions is arranged at a position where it is more difficult to mount a storage medium than the other medium housing portion when the housing is mounted on a vehicle;
The notification means may be a system that notifies the user of the role of the storage medium held in the medium container according to the difference in the position of the medium container.

When the user mounts the storage medium, he or she can recognize the role of the storage medium loaded in the medium storage section by sensing whether it is difficult or easy to load the storage medium due to the difference in the position of the medium storage section. . For example, when it is difficult to attach the storage medium, the user realizes that the storage medium attached to the medium container is not intended for carrying, but is intended to be used while attached in principle. Conversely, when the storage medium is easy to attach, the user notices that the storage medium attached to the medium container is intended for portability.

As a position where the storage medium can be easily attached, for example, when the housing is mounted in a vehicle, there is an empty space adjacent to the surface of the housing surface, the size of which corresponds to the portion beyond the wrist of a typical adult male. An example is the reserved area. For example, a sphere with a diameter of 10 cm may be used as the size corresponding to the tip of a general adult male's wrist. As a position where it is difficult to mount a storage medium, for example, there is an area where such a free space is not secured.

For example, as a position where it is difficult to mount a storage medium, it is preferable to select a housing surface facing forward, upward, or in the middle of the vehicle. As a position where the storage medium can be easily mounted, for example, the surface of the housing facing in the left-right direction or in the direction of the interior of the vehicle may be used. 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 means may record an image captured by the imaging device while the vehicle is parked in a storage medium held in a medium storage portion arranged at a position where it is difficult to mount the storage medium. This makes it difficult for the driver to accidentally remove the storage medium from the medium storage 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 housing units, and is capable of detecting an error in the storage medium held in one of the medium housing units. is detected, and the storage medium in which the error occurred has been removed from the medium storage unit, a message is output to the output means urging the other storage medium to be removed and submitted to the person in charge of maintenance. It is better to have a system that allows

By inspecting not only storage media in which errors have occurred, but also storage media in which no errors have occurred, it becomes easier to isolate the cause of the error. Errors include, for example, storage medium failures, write failures, overwrite counts exceeding specified values, and the like.

(30) the storage medium held in the medium housing unit has a mechanical write inhibit switch for inhibiting write operation;
The medium containing unit has a function of setting a write-protected state by operating a write-protect switch of the storage medium it holds,
It is preferable that the control means has a function of controlling the medium container to set the write inhibit switch of the storage medium to the write inhibit state when detecting that a predetermined event has occurred.

By setting the storage medium to a write-protected state, it is possible to prevent the video at the time of event occurrence from being overwritten. A mechanical switch may be used as the write inhibit switch, and the medium containing section 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 in the storage medium held in one of the medium storage units,
The control means records an image captured by an imaging device displayed in a store in place of the imaging device mounted on the vehicle in the other storage medium held in the medium storage unit, and records the image captured by the imaging device on display at the store in place of the imaging device mounted on the vehicle. Then, the system should have a function of stopping the recording and displaying the recorded video on the display means.

The store can motivate the consumer to purchase by displaying the video for sales promotion on the display means. Furthermore, the functionality of the system can be easily communicated to the consumer. The consumer can check the image captured at the store through the display means. This allows consumers to experience the functionality and performance of the system.

The storage medium held in one of the medium storage units plays the role of recording videos for sales promotion, and the storage medium held in the other medium storage unit is imaged by an imaging device displayed at the store. It plays the role of recording the captured video. The notification means includes, for example, information (for example, position) specifying the medium storage unit holding the storage medium recording the video for sales promotion, and storage for recording the video captured by the imaging device displayed in the store. The user may be provided with information (eg, location) that identifies the medium container that holds the medium.

At the end of the promotional video, add a video telling the consumer that filming is about to begin. The consumer sees this image, knows that imaging will start, and can start the action of directing the imaging device toward the object to be imaged. Preferably, the control means terminates the imaging in a certain period of time, automatically reproduces the image, and causes the display means to display the image. When playback of the captured video ends, it is preferable to return to playback of the promotional video.

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

The user can know the mutual relationship of the information stored in the storage media held in the two medium storage units. Therefore, convenience for the user is enhanced.

Next, the mutual relationship of information stored in two storage media will be illustrated. First, a case where the information stored in the two storage media are both images will be exemplified.

As for the mutual relationship between the images, it is preferable that the two images are paired to make sense, and that only one of the images does not make sense, or that the desired purpose of use cannot be achieved. When information stored on two storage media has this relationship, the notification means may inform the user that it is not possible to use 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 become unable to use the video.

As for the interrelationship between the images, it is preferable that the imaged object and the imaged time are the same, and both the images have a value of use on their own. Such relationships include, for example, the relationship that the recording formats for the two storage media are exactly the same, the relationship that the format formats of the two storage media are different, the frame rate and resolution of the video recorded on the two storage media. , and the relationship that all images acquired during the imaging period are recorded on one side, and only the images before and after the occurrence of a predetermined event are recorded on the other side. In both cases, images before and after the occurrence of the event are recorded, but the type of the event is different. When the information stored on the two storage media has this relationship, the notification means should inform the user that the image can be used alone and the differences between the two images. The user can determine which storage medium is preferable for viewing the video according to the purpose of use.

As for the interrelationship between the images, it is preferable that the objects to be imaged are the same but the imaging times are different, so that the purpose of use of the images is different. As such a relationship, for example, the images captured by the image capturing device mounted on the vehicle traveling on the prescribed route are different in image capturing date and time. When the information stored in the two storage media has this relationship, it is preferable that the notification means informs the driver of the vehicle of the image pickup timing. The driver of the vehicle can check the video recorded in the past when driving the predetermined route, so it is difficult for the driver to make a mistake in the route.

As a mutual relationship between the images, it is preferable that the images are images of different imaging objects taken at the same time by different imaging devices. Such relationships include, for example, the relationship between the image in front of the vehicle and the image inside the vehicle, the relationship between the image in front of the vehicle and the image behind the vehicle, the relationship between the image in front of the work vehicle and the image of the work target location, and the like. can be mentioned. When the information stored in the two storage media has this relationship, it is preferable that the notification means inform the user that the two images are taken at the same time. The user can recognize that it is meaningful to synchronize the time and reproduce the two videos.

As a mutual relationship between images, it is preferable that the images are images captured under different environments using the same imaging device. Examples of such a relationship include an image captured by an imaging device mounted in a vehicle and an image captured by an imaging device taken out of the vehicle and attached to equipment for outdoor sports. When the information stored in the two storage media has this relationship, it is preferable that the notification means inform the user that the two images were taken under different environments. The user can know that different images captured under different environments are recorded in the two storage media. Furthermore, it is especially preferable for the notification means to notify in which storage medium the captured image is recorded in which environment. The user can know in which storage medium the captured image is recorded under which environment.

As an interrelationship between images, the images are captured using the same imaging device, but the image recorded in one storage medium is a composite image in which an additional image is superimposed on the imaged image. do it. The additional image may be, for example, a warning image issued when the vehicle approaches the radar device. When the images recorded on the two storage media have this relationship, if the notifying means informs the user that the image recorded on one of the storage media is a composite image superimposed with an additional image. good.

As for the interrelationship of the images, it is preferable that the two images are combined to achieve a common purpose, but one is the image prepared in advance and the other is the 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 informs the user that one storage medium is a pre-prepared video and the other storage medium is being recorded. Good. The user can know that when the video on one storage medium is prearranged, the other storage medium should be used for recording. Consumers can get an overview and performance of the system by watching promotional videos, and experience the operation and performance of the system by watching live recorded videos.

As for the interrelationship between the images, it is preferable that one image is captured by the imaging device and the other image is a template image for extracting a specific image from the video captured by the imaging device. Preferably, the notification means informs the user that the image recorded in one storage medium is the template image for image recognition and the other is the storage medium for image recording. A user can extract different images by adding or modifying the template image.

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

As for the mutual relationship between the information, it is preferable that one information is a video captured by an imaging device, and the other information is information (key information) indicating the authority to access the storage medium. Preferably, the notification means informs the user that the information stored in one of the storage media is information indicating access authority. A user can know that a key storage medium that permits a predetermined access right is required in order to access the video.

As for the mutual relationship between the information, it is preferable that one information is an image captured by an imaging device mounted on a vehicle, and the other information is log data recording vehicle information in chronological order. Preferably, the notification means informs the user that one is the image captured by the imaging device mounted on the vehicle and the other is the log data. The user can know that useful information regarding the running 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 storing the video imaged by the imaging device mounted on the vehicle from the medium container and use it in another device. Further, the user can recognize the role of the storage medium held or held in the medium housing unit by the notification from the notification means. A user who recognizes the role of the storage medium can appropriately handle the storage medium according to its role when attaching or detaching the storage medium to or after removing the storage medium from the medium storage section. Therefore, convenience for the user is enhanced.

FIG. 1A is a perspective view of the system according to the first embodiment as viewed obliquely from behind, and FIG. 1B is a diagram showing the system, windshield, dashboard, etc. when the system is mounted on a vehicle. FIG. 2 is a block diagram of the system according to the first embodiment. 3A and 3B are timing charts showing timings for recording images captured by a camera to SD cards respectively held in SD card readers, and timings for transmitting images to an external device via a communication circuit. . FIG. 4 is a diagram showing an example of an image displayed on the display of the system according to the first embodiment. FIG. 5A is a block diagram of part of the controller of the system according to the second embodiment, and FIG. 5B is a timing chart showing the timing of video transfer to the SD card. FIG. 6 is a flowchart of processing performed 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 video recorded on one SD card. 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 flow chart 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 by the controller on the display when the SD card attached to one SD card reader is in an operating state, and FIG. FIG. 4 is a diagram showing an example of an image displayed on the display 11 by the controller when the attached SD card is in an operating state; FIG. 13 is a diagram showing 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 showing 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 showing an example of an image displayed on the display when the system according to the modification of the eighth embodiment allows the user to select the 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 the controller displaying on the display when an SDIO card with wireless communication function is attached to one of the SD card readers. It is a figure which shows an example of the image which carries out. FIG. 17 is a diagram showing an example of an image displayed on the display by the controller of the system according to the tenth embodiment to notify the user of the recording destination. FIG. 18A is a diagram showing an image on the display displaying the correspondence between the event and the recording destination SD card in the system according to the eleventh embodiment, and FIG. 18B is a modification of the eleventh embodiment. 1 is a diagram showing an example of an image displayed on a display by a controller of a system according to FIG. 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 video frame sequence 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 setting recording conditions for 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 modified example of the thirteenth embodiment. FIG. 23A is a block diagram showing part of the functions of the system according to the fourteenth embodiment, and FIG. 23B shows an image on the display showing the correspondence between two cameras and two SD card readers. FIG. 4 is a diagram showing; Figures 24A and 24b are schematic diagrams of a system according to a variant 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 flow chart 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 operating 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 the system according to the 21st embodiment, and a plan view of an SD card mounted in the system. Figure 34A is a perspective view of a system according to the twenty-second embodiment, and Figure 34b is a perspective view of a system according to a variant of the twenty-second embodiment. FIG. 35 is a perspective view of a system according to a 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 using the following examples.

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

FIG. 1A is a perspective view of the system 1 according to the first embodiment, seen obliquely from behind. An SD card insertion slot 10a and an SD card insertion slot 10b are provided on one side of the housing 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 not appearing in FIG. 1A, and a speaker and an HD output terminal are provided on the bottom.

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

FIG. 1B is a diagram showing the system 1, the windshield 3, the dashboard, etc. when the system 1 is installed in a vehicle. The system 1 is arranged on the passenger seat side adjacent to the rearview mirror 4 above the windshield 3 of the vehicle and near the center in the left-right direction. The system 1 is attached and fixed to the windshield 3 with an attachment member such as double-sided tape. A DC jack of system 1 is connected to cigarette lighter socket 5 via power cable 6 . When the accessory power supply of the vehicle is turned on, power is supplied from the cigarette lighter 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, operation buttons 12, and a communication circuit 19. Strictly speaking, the SD card readers 14a and 14b should be called "SD card reader/writers", but in this specification, they are simply called "SD card readers".

The speaker 15 and the display 11 function as notification means for informing the user of various information. The speaker 15 issues warnings and various information by sound or voice under the control of the controller 20 . The display 11 displays various information as images under the control of the controller 20 . The operation button 12 functions 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 moving image captured by the camera 17 is captured by the controller 20 as video data. Based on the video data input from the camera 17, the controller 20 records the video on the SD card held in at least one of the SD card readers 14a and 14b.

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

The GPS receiver 16 detects position information of the vehicle at the current time based on instructions from the controller 20 . The positional information includes the time obtained based on the signals from the GPS satellites, the speed of the own vehicle, the longitude, the latitude, the altitude, and the like. The controller 20 performs processing for recording the history of these positional information.

The SD card readers 14a and 14b function as medium housing units that hold SD cards 22a and 22b, respectively. The SD cards 22a and 22b function as removable storage media. A user can insert SD cards 22a and 22b into SD card readers 14a and 14b through SD card slots 10a and 10b (FIG. 1A), respectively. The SD card readers 14a and 14b respectively read data from the SD cards 22a and 22b held in the SD card readers 14a and 14b or store data in the SD cards 22a and 22b under the control of the controller 20. .

As the acceleration sensor 18, a 3-axis type sensor that detects acceleration and tilt in each of 3 axes (x-axis, y-axis, z-axis) is used. Measured values by the acceleration sensor 18 are always taken into the controller 20 . The controller 20 acquires triaxial acceleration information, for example, every 10 ms.

The controller 20 has a well-known CPU 20a, memories such as a ROM 20b and a RAM 20c, a timer 20d, and other peripheral circuits. Various programs are stored in the ROM 20 b of the controller 20 . The controller 20 implements various functions by executing these programs. 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 imaged 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, and the SD card held in at least one of the SD card readers 14a and 14b is captured by the camera 17. It functions as a control means with the function of recording video.

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

The communication circuit 19 functions as communication means for performing wireless communication with external devices such as servers, personal computers, smart phones, tablet terminals, and 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, it is preferable to use a communication circuit conforming to, for example, a WiFi standard, a short-range wireless communication standard such as Bluetooth (registered trademark), a mobile communication system standard such as LTE, 4G, or the like. The short-range wireless communication standard can be applied, for example, to communication between work vehicles (forklifts, etc.) operating in the premises and external devices. Mobile communication system standards can be applied, for example, to communication between vehicles moving within a wider area and external devices.

3A and 3B show the timing of recording the video captured by the camera 17 in the SD cards 22a and 22b held in the SD card readers 14a and 14b, respectively, and the transmission of the video to the external device via the communication circuit 19. It is a timing chart which shows the timing which carries out.

FIG. 3A shows a timing chart during a period when the communication line is in a communicable state. The controller 20 has a function of alternately recording images captured by one camera 17 in the SD cards 22a and 22b at certain time units. In the example shown in FIG. 3A, the controller 20 records the images captured during periods T1, T3, T5, T7, . . . The captured image is recorded in the other SD card 22b. Furthermore, 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 via the communication circuit 19 is temporarily interrupted. In FIG. 3B, the communication line is disabled at time t1 at the start of period T4, restored at time t2 in the middle of period T5, disabled at time t3 in the middle of period T6, and disabled at time T7. It shows an example in which the communication line is restored at time t4 in the middle of .

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

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

In this way, the controller 20 writes video to one SD card 22a and reads video from the other SD card 22b (periods T1, T3, T5, T7, . . . ). A state (periods T2, T4, T6, T8, .

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

FIG. 4 shows an example of an image displayed on the display 11. As shown in FIG. 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 an image display area 30 sandwiched between them. The controller 20 displays the image captured by the camera 17 in the image display area 30 in real time. Icons indicating various modes are displayed in the mode display area 31 . The current time is displayed in numbers in the time display area 32 .

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

[Effect of the first embodiment]
Next, the excellent effects of the first embodiment will be described. The user can remove the SD cards 22a and 22b storing the images captured by the camera 17 mounted on the vehicle from the SD card readers 14a and 14b and use them in other devices. Further, the user can see the icon 55 to recognize the roles of the SD cards 22a and 22b held or held in the SD card readers 14a and 14b. A user who recognizes the roles of the SD cards 22a and 22b should read the SD cards when inserting and removing the SD cards 22a and 22b from the SD card readers 14a and 14b, or after removing the SD cards 22a and 22b from the SD card readers 14a and 14b. 22a and 22b can be handled appropriately according to their roles. Therefore, convenience for the user is enhanced.

In the first embodiment, images recorded on the SD cards 22a and 22b can be transmitted to an external device by wireless communication. Therefore, the video can be reproduced by an external device without removing the SD cards 22a and 22b from the system 1. FIG. In this specification, video data may be simply referred to as video.

In general, when data is written to an SD card while data is read, the data transfer speed becomes slow. For example, if an unsent image C recorded on the SD card 22a shown in FIG. 3B is read and transmitted during the period T5 during which the image is recorded on the SD card 22a, the data transfer speed to the SD card 22a slows down. end up If the writing speed becomes slower than the speed required to record the video, the video cannot be recorded normally. In the first embodiment, while the video is being recorded on the SD card 22a (time period T5), the video C recorded on the SD card 22a is not read out, and the video is recorded on another SD card 22b. Since the image C that could not be transmitted is read out and transmitted in the period T6, it is possible to suppress a decrease in the writing and reading speed.

The writing of video to one SD card 22a and the reading of video from the other SD card 22b can be performed in parallel by a 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 out from the SD cards 22a and 22b and transmitted later. The SD cards 22a and 22b play a role of recording images, and also play a role of storage means for storing images to be transmitted via the communication circuit 19 until the transmission is completed.

If the images recorded on the SD cards 22a and 22b are left in the buffer memory in the controller 20 until the transmission via the communication circuit 19 is completed, the images are not read from the SD cards 22a and 22b, and the images are stored in the buffer memory. You can read the video from and send it. However, when this method is adopted, it is necessary to store all images captured while the communication line is unavailable in the buffer memory, so a large-capacity buffer memory must be secured. not. In the first embodiment, since the video can be deleted from the buffer memory at the time 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, the video in the buffer memory is erased when the power supply is stopped. In the first embodiment, since images are recorded in the non-volatile SD cards 22a and 22b, unsent images will not be erased even if the power supply is stopped.

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

[Modification of the first embodiment]
Next, a modification of the first embodiment will be described. The video captured by the camera 17 in the first embodiment 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, an I frame followed by a plurality of P frames should be regarded as an inseparable minimum unit, and each minimum unit or a plurality of minimum units should be collectively transmitted 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 load on the CPU 20a increases. If the processing capability of the CPU 20a is not sufficient, the images may be read from the SD cards 22a and 22b and transmitted after real-time transmission is completed.

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

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

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

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

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

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

In the second embodiment, the two SD cards 22a and 22b record a short-time video in which a temporally continuous video is divided into pieces on the time axis, and the two SD cards 22a and 22b They play a role in forming a single temporally continuous video as a group.

[Effect of Second Embodiment]
Next, the excellent effects 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 there is an untransferred video in the other buffer memory 20h. New images can be buffered in the buffer memory 20g. In this way, by distributing and writing one video to the two SD cards 22a and 22b, the apparent transfer speed can be increased. As a result, it becomes possible to record high-frame-rate, high-resolution video that cannot be written in time with the speed of writing to a single SD card. For example, ultra-high-definition 8K video cannot be recorded in real time to a normal SD card because the writing speed of the SD card is 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 if the video is recorded on the two SD cards 22a and 22b in a distributed manner, if the writing speed bottleneck cannot be eliminated, three or more SD cards should be used.

In the second embodiment, the buffer memories 20g and 20h are prepared for each of the SD card readers 14a and 14b. It may be divided into an area for the reader 14b.

[Third embodiment]
A system according to a third embodiment will now be described with reference to FIG. Hereinafter, descriptions of configurations common to those of the above-described multiple embodiments will be omitted.

FIG. 6 is a flow chart of processing executed by the controller 20 of the system 1 according to the third embodiment. When the system is activated by turning on the power of the vehicle, the controller 20 (FIG. 2) transfers the image captured by the camera 17 (FIG. 2) to the SD card held in one SD card reader 14a. 22a (step SA1).

Next, the controller 20 determines whether or not the current position of the vehicle satisfies the conditions for issuing an alarm (step SA2). For example, the controller 20 determines that the warning issuance condition is satisfied when the distance from the current vehicle position to the radar speed control device becomes equal to or less than the determination threshold. For example, 500 m, 1 km, or the like may be used as the determination threshold.

When the controller 20 determines that the warning issuance condition is satisfied, the controller 20 combines an image representing the warning information with the image captured by the camera 17 to generate a composite image (step SA3). The warning information includes, for example, information indicating the distance to the radar-type speed control device, and information for calling attention to the driver, such as information issued to the driver and prompting the driver to slow down. An image representing the alarm information is generated by the controller 20 . The controller 20 displays this synthesized image on the display 11 (step SA4). After that, the synthesized image is recorded in the SD card 22b held in the SD card reader 14b (step SA5).

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

If it is determined in step SA2 that the warning issuance condition is not satisfied, the image 33 captured by the camera 17 is displayed on the display 11 (step SA6). Then camera 1
7 is recorded in the SD card 22b held in the SD card reader 14b (step SA7).

FIG. 7B shows an example of video 33 recorded on the SD card 22b. This image 33 is obtained by not subjecting the image picked up by the camera 17 to any image composition processing. Although the image 33 recorded on the SD card 22b is not subjected to image synthesis processing, it is preferable to perform image compression processing.

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

[Effect of the third embodiment]
Next, the excellent effects of the third embodiment will be described. When the user confirms the video recorded while the vehicle is running after driving, the user can use the synthesized image for various purposes, and can leave the unprocessed video in the other storage medium as it is. can. When the video is played, the composite image can be contrasted with the raw video. The person in charge of managing the vehicle can confirm how the driver traveled when the warning was issued. Raw video provides a detailed picture of the vehicle's surroundings at the time of the alarm. Furthermore, since it can be inferred that the unprocessed video has not been tampered with, it is considered to have higher admissibility than the composite image.

[Modification of the third embodiment]
As an image to be superimposed on the image captured by the camera 17, other than the image showing the alarm information, another image generated by a computer may be used. The image generated by the computer may be an image displayed by a car navigation system, for example, a map of the surroundings of the vehicle's current position at the time of alarm issuance. A computer-generated image may be translucent and superimposed on the image captured by the camera 17 . By making the computer-generated image translucent, the image captured by the camera 17 can be confirmed even in the overlapping portion without reproducing the unprocessed image.

The alarm information may be superimposed on the video and recorded as an image, and the audio information may be recorded by outputting a sound to notify the alarm. For example, it is preferable to output a voice saying "It is 500 m to the H system. Please reduce the speed to 60 km or less" and record this voice information in the SD card 22b. For example, the SD card 22a that stores the raw video may record the sound picked up by the microphone in the vehicle, and the SD card 22b that records the composite image may record only the warning sound.

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

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

FIG. 9 shows an example of an image displayed on the display 11. As shown in FIG. The controller 20 (FIG. 2) displays an icon 37 indicating the frame rate in the mode display area 31 of the display 11, indicating that the images captured by the camera 17 are to be recorded on the SD cards 22a and 22b. In the icon 37, frame rates are displayed in numerical values arranged 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 inserted and removed through the upper SD card slot 10b (FIG. 1A), and the numerical value of the frame rate displayed in the lower row. indicates the frame rate of the video recorded on the SD card 22a that is inserted/removed through the lower SD card slot 10a (FIG. 1A). The display 11 functions as 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 effects of the fourth embodiment will be described. The SD card 22b for recording under low frame rate recording conditions can be used for long-time recording, and the SD card 22a for recording under high frame rate recording conditions can be used for recorded video. It can be used for more detailed analysis. By looking at the icon 37 displayed on the display 11, the user can easily determine which one of the SD card readers 14a and 14b should be used to view the image on the SD card according to the purpose of using the image. can.

Since the SD card 22b for long-time recording has fewer rewriting times than the SD card 22a for detailed analysis, it has a longer life. For example, even if video is not recorded because the SD card 22a for detailed analysis has exceeded its life, video remains on the SD card 22b for long-time recording. Also, the probability that the two SD cards 22a and 22b will reach the end of their lives at the same time is low. Therefore, even if one of the SD cards 22a and 22b has reached the end of its life, the video will be recorded normally on the other, resulting in a situation where neither SD card 22a nor 22b has any video left. Very rarely.

[Modification of the fourth embodiment]
In the fourth embodiment, the frame rates of the images recorded on the SD cards 22a and 22b are made different, but recording conditions other than the frame rate, such as resolution, may be made different. Furthermore, both frame rate and resolution may be different. The resolution of the video recorded on the SD card 22b for long-time recording should 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. If the resolutions of the images recorded on the SD cards 22a and 22b are to be different, the controller 20 will cause the display 11 to display character information indicating the resolution.

[Fifth embodiment]
A system according to a fifth embodiment will now be described with reference to FIG. Hereinafter, descriptions of configurations common to those of the above-described multiple embodiments will be omitted.

The controller 20 (FIG. 2) of the system 1 according to the fifth embodiment transfers the video captured by the camera 17 to both the SD cards 22a and 22b held in the SD card readers 14a and 14b, respectively, under the same recording conditions. It has a function 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) linking them to the SD cards 22a and 22b. The two SD cards 22a and 22b play the role of recording the same video and 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 that the two SD cards 22a and 22b play a role of backing up each other. For example, the controller 20 displays information on the display 11 in the form of an image or text indicating that the same video is recorded on the two SD cards 22a and 22b and that the two SD cards 22a and 22b play a role of mutual backup.

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

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

When the user selects to record video on two SD cards, the controller 20 displays a message on the display 11 prompting the user to insert the other paired SD card into an empty SD card reader. and waits until the SD card is loaded (step SB03).

When the controller 20 detects that an SD card is attached to an empty SD card reader, it determines whether 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 they have a mutually 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, by comparing the capacities and recording dates and times of the images recorded on the two SD cards 22a and 22b, it is possible to determine whether or not the images are the same.

If the two SD cards 22a and 22b have a paired relationship and the images on both are the same, the controller 20 determines that there is no mismatch between the two SD cards 22a and 22b. Otherwise, it is determined that there is inconsistency.

If it is determined that the two SD cards 22a and 22b are inconsistent, the controller 20 allows the user to select which of the SD cards 22a and 22b to keep (step SB05). For example, the controller 20 displays a message on the display 11 to select which of the SD card readers 14a and 14b to store the image of the attached SD card. By operating the operation button 12 or the like, the user can select the SD card reader to which the SD card for recording the video is attached, out of the SD card readers 14a and 14b.

When the user selects the SD card reader 14a, the controller 20 erases the video on the SD card 22b attached to the SD card reader 14b that is not selected, and copies the video on the SD card 22a to the SD card 22b (step SB06). SD card 22
a and the SD card 22b, 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 on the SD card 22a attached to the SD card reader 14a that is not selected, and copies the video on the SD card 22b to the SD card 22a (step SB07). When the identification information of the SD card 22a and the SD card 22b are 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 is finished, the process of recording the video imaged by the camera 17 to the two SD cards 22a and 22b is started (step SB08).

When it is determined in step SB04 that there is no mismatch between the two SD cards 22a and 22b, the controller 20 starts the 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 loaded, the controller 20 executes the process of step SB04 without executing the processes of steps SB02 and SB03.

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

When the user selects to erase the video, the controller 20 erases the video in the attached SD card (step SB11). After erasing the image, the controller 20 starts processing to record the image captured by the camera 17 in one SD card (step SB12). When the user selects not to erase the image, the controller 20 starts processing to record the image captured by the camera 17 in one SD card without erasing the image (step SB12).

[Effect of the fifth embodiment]
Next, the excellent effects of the fifth embodiment will be described. When the video is recorded in real time on the two SD cards 22a and 22b in step SB08, even if a writing error occurs in one of the SD cards 22a and 22b, the video can be normally recorded in the other SD card. . Therefore, it is possible to avoid the situation where no image remains. By removing the SD card from only one of the SD card readers 14a and 14b, the video can be played back on another device such as a personal computer.

Also, even if the image in a certain sector of one of the SD cards 22a and 22b cannot be read, the image can be reproduced by reading the contents of the other sector in which the same image is recorded.

The user can see that the two SD cards 22a and 22b are paired by looking at the display 11 displaying information representing the roles of the SD cards.

Furthermore, the user can see the information displayed on the display 11 in step SB02 and notice that there is another SD card paired with the one SD card currently installed. As a result, forgetting to insert the SD card can be prevented. Also, if the other SD card to be paired with is not found at hand, the user can cause the system 1 to record video by selecting recording to 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 paired two SD cards 22a and 22b can be maintained.

[Sixth embodiment]
A system 1 according to a sixth embodiment will now be described with reference to FIGS. 11, 12A and 12B. Hereinafter, descriptions of configurations common to those of the above-described multiple 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 verify error occurs when recording video on one of the SD cards, the SD card on which the video is recorded It has a function to switch cards and record video on the other SD card.

FIG. 11 is a flow chart of processing executed by the controller 20 (FIG. 2) of the system 1 according to the sixth embodiment. When the power of 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 activates the other. A standby state is set (step SC1). The controller 20 displays on the display 11 an image informing the user of the SD card reader to which the SD card in operation is attached (step SC2). After that, the controller 20 writes the image captured by the camera 17 (FIG. 2) to the SD card in the operating state (step SC3).

After writing the video, the controller 20 determines whether or not the operation of the system has ended (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 has not ended, the controller 20 determines whether or not a verify error has occurred during writing to the SD card (step SC5). For example, if a positive acknowledgment (ACK) signal is returned when writing video to an SD card, it is determined that no verify error has occurred, and if a negative acknowledgment (NAK) signal is returned, it is determined that a verify error has occurred. good. The determination of whether or not a verify error has occurred may be performed, for example, for each DMA transfer. If no verify error has occurred, a new image is written to the SC card in operation (step SC3).

If a verify error occurs, the controller 20 puts the SD card in the operating state into the standby state, and puts the SD card in the standby state into the operating state (step SC6). After switching the state of the SD card, the controller 20 displays on the display 11 an image informing the user of the SD card reader to which the SD card in the operating state is attached (step SC7), and a verify error occurs. Then, the video that could not be written normally is written to the newly activated SD card (step SC8). After that, a new image 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 operation. The controller 20 (FIG. 2) displays in the mode display area 31 an icon 38 indicating an SD card reader loaded with an SD card that is set to the operating state. The icon 38 indicates the SD card that is set to the operating state, and is a figure capable of informing the user that two SD cards are paired to record one video. In FIG. 12A, the figure indicating the SD card 22a in the operating state is indicated by a white and thick outline, and the figure indicating the SD card 22b in the standby state is indicated in gray. Furthermore, two figures representing the SD cards 22a and 22b are surrounded by polygonal lines. The user can recognize that the two SD cards 22a and 22b are paired by forming a polygonal line around the two figures representing the SD cards 22a and 22b.

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

If the cause of the verify error is temporary, there is a possibility that the SD card in which the verify error once occurred can be successfully recorded thereafter. Therefore, after a verify error occurs and the SD card in the operating state is changed, if the verify error also occurs in the SD card newly put into the operating state, the original SD card is put into the operating state again. As a result, as a whole, it is possible to reduce the frequency of situations in which video cannot be recorded.

[Modification of the sixth embodiment]
For example, the controller 20 displays on the display 11 that one video is recorded in the SD cards 22a and 22b respectively held in the two SD card readers 14a and 14b, complementing each other. The user should be notified by The user realizes that two SD cards 22a and 22b are required to reproduce temporally continuous video. When reproducing video on an external device, the user can recognize that it is necessary to remove the two SD cards 22a and 22b from the SD card readers 14a and 14b and mount them on the external device.

When determining whether or not a verification error has occurred (step SC5), the video recorded on the SD card may be read to confirm the consistency of the data. You can also read out the written video and perform a CRC check.

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

The controller 20 has a function of recording video in a general-purpose file format on the SD card held by one SD card reader and recording video in a unique format on the SD card held by the other SD card reader. have For example, an avi file format can be adopted as a general-purpose file format. As video compression techniques, MPEG2, motion JPEG, H.264, etc. are available. 264, H. H.265 or the like may be applied. As a unique file format, for example, a format called YP format can be adopted.

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

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

FIG. 13 shows an example of an image displayed on the display 11 by the controller 20. As shown in FIG. The controller 20 displays, in the mode display area 31 of the display 11, icons 39 indicating the format types of the SD cards 22a and 22b held in the SD card readers 14a and 14b, respectively. For example, the characters "avi" are displayed to the right of the icon representing the SD card 22a, and the characters "YP" are displayed to the right of the icon representing the SD card 22b. Furthermore, the icon 39 is a figure that can notify the user that the images recorded on the two SD cards 22a and 22b are the same. For example, one straight line extending from the icon representing the camera 17 branches into two straight lines, each of which extends toward two icons representing two SD cards 22a and 22b, each with an arrow at its tip. It is

[Effect of the seventh embodiment]
Next, the excellent effects 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 reproduced by a general reproduction 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.

When the user sees two arrows pointing to two icons 39 indicating SD cards 22a and 22b, the user can recognize that the images captured by camera 17 are recorded on both SD cards 22a and 22b. can. Furthermore, the user can see the characters displayed on the right side of the icon 39 indicating the SD cards 22a and 22b to know the format of the two SD cards 22a and 22b.

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

[Eighth embodiment]
A system according to an eighth embodiment will now be described with reference to FIG. Hereinafter, descriptions of configurations common to those of the above-described multiple embodiments will be omitted. In the above embodiments, an SD card is used as a removable storage medium, but in the eighth embodiment, two types of storage media having different standard values of maximum writing speed are used. For example, an XQD card can be used as a storage medium with a high maximum writing speed, and an SD card can be used as a storage medium with a low maximum writing speed.

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

A controller 20 writes the video imaged by the camera 17 in real time to the XQD card held in the XQD card reader supporting the interface standard with the faster maximum writing speed. The controller 20 has a function of copying the video written in the XQD card in real time to the SD card held in the SD card reader according to the instruction from the user.

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

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

[Effect of the eighth embodiment]
Next, the excellent effects of the eighth embodiment will be described. Compared to recording video in real time on an SD card with a slow maximum writing speed, it is possible to record video with a high frame rate and high resolution on an XQD card in real time. When copying the video recorded on the XQD card to another SD card, the destination SD card does not require a high writing speed. In general, SD cards with slower write speeds are less expensive than XQD cards. As a result, the same video can be copied to a plurality of low-cost SD cards and used for distribution.

[Modification of the eighth embodiment]
Removable media other than the XQD card may be used as the storage medium with the higher maximum write speed, and removable media other than the SD card may be used as the storage medium with the lower maximum write speed.

The controller 20 preferably has 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 a time slot during which the vehicle is not used and cause the video to be copied.

The XQD card should preferably record images captured by the camera 17 during the period from when the power of the vehicle is turned on until it is turned off (hereinafter referred to as constant recording). In addition, it is also possible to record images before and after the time when it is detected that a predetermined event has occurred (hereinafter referred to as event recording). It is particularly good to perform both constant recording and event recording.

The controller 20 preferably has a function of allowing the user to select the video to be copied from the videos event-recorded on the XQD card.

FIG. 15 shows an example of an image displayed on the display 11 when allowing the user to select 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 occurrence in the video display area 30, and a message prompting the user to select the copy source video. display. A user can select a 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.

It takes a long time to copy all the constantly recorded images. Unnecessary copy time can be reduced by the user selecting and copying only the desired video.

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

FIG. 16A is a functional block diagram of part of 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 an 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 TransferJet standard communication function, or the like can be used.

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

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, respectively. The icon representing the SDIO card 22c with the wireless communication function includes an antenna figure for notifying that it has the wireless communication function.

[Effect of the ninth embodiment]
Next, the excellent effects of the ninth embodiment will be described. The system 1 according to the ninth embodiment can wirelessly transmit the video captured by the camera 17 to an external device via the SDIO card 22c having a wireless communication function. This allows the user to reproduce the video recorded on the SD card 22a on an 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 wirelessly transmitting video. be able to. It can be seen that the SD card 22a attached to the other SD card reader 14a plays the role of recording video.

[Modification of the ninth embodiment]
It is preferable that the SDIO card 22c has a video recording function in addition to the wireless communication function. The video recorded on the SDIO card 22c can be transmitted to an external device by using the wireless communication function of the SDIO card 22c according to a command from the controller 20. FIG. For example, the controller 20 may read video from the SDIO card 22c and transmit the read video from the SDIO card 22c. Further, it is particularly preferable that the controller 20 issues a transmission command to the SDIO card 22c so that the SDIO card 22c autonomously transmits the video.

It is even better if both of the two SD card readers 14a and 14b support an interface standard between SDIO cards having wireless communication functions. For example, while video is being recorded on an SDIO card held by one SDIO card reader, video already recorded on an SDIO card held by the other SDIO card reader may be transferred to that SDIO card. It can be sent using the communication function.

As the SDIO card, a card compatible with the proximity wireless transfer technology standard such as TransferJet may be used. When an SDIO card compatible with proximity wireless transfer technology standards is held in an SD card reader, the user removes the system 1 (FIGS. 1A and 1B) from the vehicle and brings it close to the master device, thereby transferring video to the master device. be able to. An SD card reader that supports an interface standard with an SDIO card compatible with proximity wireless transfer technology standards should preferably be placed closer to the wall of the housing than the other SD card reader so as not to interfere with close proximity wireless transfer. .

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

The controller 20 has a function of recording images captured by the camera 17 from the time the power of the vehicle is turned on until the time the power is turned off (hereinafter referred to as constant recording). A function to record video for a predetermined period including the time when a predetermined event occurs (hereinafter referred to as event recording); (hereinafter referred to as "log data recording"), and a function to record log data in which information on vehicle travel is arranged in chronological order (hereinafter referred to as "log data recording").

As a predetermined event, for example, detection of an impact having a magnitude equal to or larger than 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 vehicle operation status, vehicle movement trajectory, and the like. The operation status of the vehicle may include, for example, whether or not the brake is stepped on, and whether or not the direction indicator is turned on. These pieces of information can be acquired from various sensors, OBD connectors, etc. mounted on the vehicle.

The recording destination of constant recording, event recording, parking surveillance recording, and log data recording is set to either the SD card 22a held in the SD card reader 14a or the SD card 22b held in the SD card reader 14b. ing. The controller 20 has a function of informing the user which SD card is held in which SD card reader the recording destination is.

FIG. 17 shows an example of an image displayed on the display 11 by the controller 20 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 graphically displays the outline of the system 1 and the SD card insertion openings 10a and 10b in the image display area 30, and also displays 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 can see that constant recording is performed on the SD card 22a inserted in the lower SD card insertion slot 10a, and event recording, parking monitoring recording, and log data recording are performed on the upper side. It can be recognized that it is performed with respect to the SD card 22b inserted into the SD card insertion slot 10b.

[Effect of the tenth embodiment]
Next, the excellent effects of the tenth embodiment will be described. In the tenth embodiment, the recording capacity as a whole increases compared to the case where all of the constant recording, event recording, parking monitoring recording, and log data recording are recorded in one SD card. As a result, the time during which constant recording can be performed or the time during which parking monitoring recording can be performed becomes longer, the number of events that can be recorded increases, and the amount of log data that can be recorded increases. In constant recording or parking surveillance recording, if the process of overwriting old video with new video when the SD card runs out of free space, the number of times of overwriting can be reduced. This can extend the life of the SD card.

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

The user can remove only the SD card on which the desired video is recorded from the SD card reader and reproduce it on an external device. For example, if the user wants to see the video when an event occurs, only the event recording SD card 22b should be removed from the SD card reader 14b. By looking at the image (FIG. 17) displayed on the display 11, the user can easily know which SD card should be removed.

When the system 1 is used for business purposes, for example, the operation manager should have the driver submit only the SD card 22b in which the event is recorded. For the operation manager, the effect is obtained that the amount of images to be confirmed is reduced compared to the case of confirming all recorded images all the time. In addition, the number of SD cards to be submitted to the operation manager can be reduced by recording only the information necessary for the operation manager on one SD card and recording less necessary information on the other SD card. can be done. This makes it easier to manage operations.

[Modification of the tenth embodiment]
In the tenth embodiment, the controller 20 has the functions of constant recording, event recording, parking monitoring recording, and log data recording. and event recording. At this time, the SD card for constant recording or parking surveillance recording should be different from the SD card for event recording. It is preferable to overwrite an SD card for constant recording or parking monitoring recording, and not to overwrite an SD card for 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 surveillance recording. For this reason, an SD card with a relatively large capacity is prepared for constant recording or parking monitoring recording, and an SD card for event recording has a larger capacity than the SD card for constant recording or parking monitoring recording. Just prepare something small. Thereby, the cost required for the SD card can be reduced.

The parking monitoring record may record images captured during the entire period of parking with the vehicle power turned off, and particularly when recording partial images including the time at which a predetermined event occurs while the vehicle is parked. good. Events include, for example, the detection of movement in the image being captured (motion detection), the detection of vehicle vibration, the detection of loud noise, the detection of the opening of the vehicle window, the detection of the opening of the vehicle door, etc. good. By recording a part of the video including the point in time when the event occurs in the storage medium for parking surveillance recording, it is possible to reduce the capacity consumption of the SD card for parking surveillance recording.

Constant recording may be performed on one SD card, and log data recording may be performed on the other SD card. The operation manager can associate the images stored in one of the SD cards with the log data, and evaluate the driving at the time the images were acquired. By viewing the image (FIG. 17) displayed on the display 11, the driver can, for example, select the position of the SD card slot for inserting the SD card for recording video and the position of the SD card for inserting the SD card for recording log data. You can know the position of the card slot.

In the tenth embodiment, the correspondence between constant recording, event recording, parking monitoring recording, and log data recording and the SD card is fixed, but it is preferable to allow the user to change this correspondence. 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 loading an SD card for constant recording, an SD card for event recording, and an SD card for parking surveillance recording. By separating the SD cards for each purpose, it is possible to submit a plurality of SD cards to administrators who need them.

[11th embodiment]
Next, the system 1 according to the eleventh embodiment will be described with reference to FIG. 18A. Hereinafter, descriptions of configurations common to those of the above-described multiple embodiments will be omitted.

The controller 20 of the system according to the eleventh embodiment records video before and after the occurrence of a specific event (referred to as a first type event) to one of the SD cards, and records a specific event different from the first type event. (referred to as a second type of event). 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 on the display 11 the correspondence between the specific event and the SD card that records the video when the event occurs.

FIG. 18A shows an image on the display 11 displaying the correspondence between events and recording destination SD cards. The user can display the image shown in FIG. 18A by operating the operation button 12 .

The controller 20 graphically displays the outline of the system 1 and the SD card insertion openings 10a and 10b in the image display area 30, and also displays 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 event that triggers the recording to the SD cards 22a and 22b is displayed.

Abrupt steering, abrupt braking, abrupt acceleration, etc. are mainly based on the driver's own driving ability and driving attitude. The occurrence of collisions is considered to be caused by the running of other vehicles, regardless of the driving ability and driving attitude of the driver. In this way, as in the example shown in FIG. 18A, the SD card 22a for recording video when an event that is considered to be caused by something other than the driver occurs, and the event that is mainly considered to be caused by the driver. It is preferable that the SD card 22b for recording the video when the event occurs is different.

[Effect of the eleventh embodiment]
Next, the excellent effects of the eleventh embodiment will be described. From the image shown in FIG. 18A, the user can see that the image of the occurrence of the collision is recorded in the SD card 22a inserted into the SD card slot 10a on the lower side, and the image of the occurrence of sudden steering, sudden braking, and sudden acceleration. is recorded in the SD card 22b inserted into the upper SD card slot 10b.

A video image of an event that is considered to be caused by the driver's driving skill or driving attitude (for example, abrupt steering, sudden braking, and sudden acceleration) can be used for driver education. When the operation manager requests the driver to take out from the system 1 and submit the SD card 22b in which the images of sudden steering, sudden braking, and sudden acceleration are recorded, the driver is prompted to display on the display 11 It is possible to easily determine from which SD card slot the SD card should be removed from the image.

[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 modification, the controller 20 records the video before and after the event on one of the SD cards 22a when an event occurs while complying with the legal speed limit, and when the event occurs while the legal speed limit is exceeded. , and the images before and after that are recorded on the other SD card 22b. The controller 20 displays on the display 11 the correspondence between the event that has occurred and the SD card on which the video is to be recorded. The legal speed of the current route can be obtained from road signs, map data, or the like.

The user can easily compare the video when exceeding the legal speed limit with the video when complying with the legal speed limit.

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

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

The controller 20 displays an image on the display 11 for notifying the user of the SD card reader to which the SD card storing the event conditions 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. FIG. The mode display area 31 displays an icon 42a indicating the SD card 22a on which the video imaged by the camera 17 is recorded, and an icon 42b indicating the SD card 22b storing the event conditions. For example, an arrow pointing from the icon indicating the camera 17 to the icon indicating the SD card 22a is displayed, and an exclamation mark surrounded by a circle is displayed in the middle of the arrow, and the SD card 22b is displayed near the exclamation mark. icon 42b is displayed. An arrow pointing from the icon indicating the camera 17 to the icon indicating the SD card 22a indicates that the image captured by the camera 17 is recorded on the SD card 22a. The exclamation mark on the arrow and the icon 42b representing the SD card 22b indicate that the event conditions are stored in the SD card 22b.

FIG. 19B shows a sequence of video frames recorded on the SD card 22a. A mark 43 indicating that an event has occurred is recorded in correspondence with a frame imaged when the event occurs among the plurality of frames. Marker 43 contains information identifying which event has occurred.

[Effect of the 12th embodiment]
Next, the excellent effects of the twelfth embodiment will be described. The user can refer to the mark 43 recorded on the SD card 22a recording the video to quickly find the video to be confirmed or verified. As a result, useful images can be extracted from a huge amount of images, and the images can be used effectively. The user can easily add or delete event conditions because the user only needs to store the event conditions to be confirmed or verified in the SD card 22b.

By looking at the image displayed on the display 11, the user can infer that the video captured by the camera 17 is recorded in the SD card 22a and the event conditions are stored in the SD card 22b. Thereby, 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 the video should be attached.

The event conditions may include, for example, conditions for detecting the occurrence of events that may be caused by driver fatigue, carelessness, or the like. For example, the event conditions include departure from the driving lane, abnormal approach to the vehicle in front, the passage of a certain period of time while the vehicle is stopped even though the vehicle in front has started, and the occurrence of lateral shake, slippage, etc. be able to. The occurrence of these events can be detected by equipping the vehicle with advanced driver assistance systems (ADAS). The operation manager can make the driver aware of the degree of danger by showing the video of the occurrence of the event 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 is present in the captured video. An image of a specific person or a specific vehicle number to be detected may be stored in the SD card 22b as a template image, and the controller 20 may detect the specific person or vehicle using image authentication technology. When the controller 20 detects a specific person or vehicle, the controller 20 preferably transmits the location information of the detected location, the image at the time of detection, and the like to a data center (for example, a police server or the like). The information sent to the data center provides valuable clues in locating the person or vehicle being sought.

Event conditions may include, for example, the detection of a vehicle moving erratically or dangerously (dangerous vehicle). Disturbed or dangerous behavior may include, for example, meandering, ignoring traffic lights, speeding, and the like. When the controller 20 detects a dangerous vehicle, the controller 20 may transmit the position information of the detected location, the image at the time of detection, and the like to a data center (for example, a police server or the like). By sharing the presence of a dangerous vehicle among drivers of a plurality of vehicles, it is possible to prevent accidents caused by dangerous vehicles from occurring. A driver of a dangerous vehicle can be instructed not to drive dangerously.

Event conditions may include detection of a person in a particular posture, detection of a pedestrian of a particular age, detection of a bicycle, detection of a particular traffic sign, and the like. It is possible to easily confirm or verify how the driver drove when these events occurred. For example, the person taking a specific posture may include a person raising his hand, a person holding a selfie stick, and the like. The video can verify, for example, whether the driver paused when a person with his hand raised was detected. It can be verified whether the driver slowed down when a person holding a selfie stick was detected. Pedestrians of a particular age group may include children or the elderly. When detecting a child or an elderly person as a pedestrian, it can be verified, for example, whether the driver has slowed down. When various traffic signs are detected, it can be verified, for example, whether the driver has complied with the traffic rules.

[Thirteenth embodiment]
Next, a system according to a thirteenth embodiment will be described with reference to FIGS. 20-22. Hereinafter, descriptions of configurations common to those of the above-described multiple embodiments will be omitted.

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

By displaying the recording conditions stored in the SD card 22a on the display 11, the controller 20 informs the user under what recording conditions the video is being recorded.

FIG. 20 shows an example of an image displayed on the display 11. As shown in FIG. An icon 53 a representing the SD card 22 a and an icon 53 b representing the SD card 22 b are displayed in the mode display area 31 . For example, the characters displayed on the right side of the icon 53a indicate that the SD card 22a stores a recording condition of "frame rate 30 fps". A downward-pointing triangular 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.

The 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 setting recording conditions for 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 constant recording is performed, a mode in which both constant 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 into 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 recording frames (frame rate), and the number of event recording frames from a pull-down menu. Furthermore, the user can select event recording time, presence or absence of audio recording, history recording time, and number of history recording frames from a pull-down menu. Furthermore, the user can select whether or not to overwrite when the recording areas for constant recording, event recording, and history recording run out of space.

Furthermore, the user can select whether or not to perform event recording based on the measurement values of the acceleration sensor (G sensor) 18 and whether or not to perform event recording based on the measurement values of the gyro sensor. Furthermore, it is possible to set the size of the measured value for determining that event recording should be performed.

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 effects of the thirteenth embodiment will be described. By pre-storing recording conditions in the SD card 22a attached to the SD card reader 14a, the user can record video in the SD cards 22a and 22b under desired recording conditions. 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 storing the recording conditions should be inserted and the current recording conditions.

[Modification of the thirteenth embodiment]
In addition to the frame rate and resolution, recording conditions include, for example, a condition for determining the occurrence of an event when recording images before and after the occurrence of an event, and a condition for whether or not to record audio, as shown in FIG. etc. may be included. For the condition for determining whether 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 types of events may be employed as recording conditions.

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

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 detects the recording conditions stored in the SD card held in one particular SD card reader. The recording conditions stored in the SD card held in the other SD card reader are not adopted, and the images are recorded on the two SD cards based on the effective recording conditions. . The user only needs to load an SD card storing the recording conditions to be actually recorded into a specific SD card reader, and does not need to know the recording conditions stored in the other SD card.

The controller 20 validates 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. Images may be recorded based on The user can decide recording conditions for each SD card.

The controller 20 may record the video on the SD card based on the recording conditions preset in the controller 20 without adopting the recording conditions stored in the SD card. By setting the recording conditions in the controller 20 in advance, the user can set the recording conditions based on the desired recording conditions without checking the recording conditions stored in the SD card each time the SD card is inserted into the SD card reader. Video can be recorded.

The controller 20 has a mode that validates the recording conditions stored in the SD card held in one specific SD card reader, a mode that validates both the recording conditions stored in the SD card, and a mode that validates both the recording conditions stored in the SD card. It is preferable that the controller 20 has a function of allowing the user to select one of the modes that enable the recording conditions set in the controller 20 . The user can select the most appropriate mode according to the usage of the system.

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

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

The user only has to select one mode from the menu. When an SD card in which no recording conditions are stored is held in the SD card reader, the mode for validating the recording conditions stored in the SD card held in the SD card reader is excluded from the menu. Good to keep. When the recording conditions are not set in the controller 20, it is preferable to exclude from the menu the mode for validating the default recording conditions set in the controller 20. FIG. The user can see the menu screen displayed on the display 11 to know the list of selectable modes.

Recording conditions and priorities may be stored in each SD card, and the controller 20 may enable the recording condition with the higher priority. If the priorities are the same, it is preferable to determine which recording condition to activate based on the timing at which the priorities are set. For example, it is preferable to validate the recording condition whose set time is newer. Conversely, the recording condition with the earlier set time may be validated. It is preferable to set in advance in the controller 20 whether to validate the recording condition set at the newer time or to validate the recording condition set at the older time.

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

In FIG. 21, an example in which the recording conditions are set using a personal computer has been described, but the controller 20 of the system 1 may have a function of storing the recording conditions in the SD card.

[14th embodiment]
A system 1 according to a fourteenth embodiment will now be described with reference to FIGS. 23A, 23B, 24A and 24B. Hereinafter, descriptions of configurations common to those of the above-described multiple 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 to the controller 20 from two cameras 17a and 17b. For example, two cameras 17a and 17b may be installed so as to image the front and rear of the vehicle, or the front and interior of the vehicle.

The controller 20 has a function of recording images captured by the two cameras 17a and 17b in 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 character information.

FIG. 23B shows an image on the display 11 displaying the correspondence between the two cameras 17a and 17b and the two SD card readers 14a and 14b. 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 effects of the fourteenth embodiment will be described. The system 1 according to the fourteenth embodiment can record wide area images that cannot be covered by one camera. For example, it is possible to record front and rear images of the vehicle, or front and inside images. By looking at the image (FIG. 23B) displayed on the display 11, the user can easily know which SD card held by which SD card reader has recorded the video captured by which camera. The user can remove the SD card in which the video desired to be reproduced by the external device is recorded from the SD card reader and reproduce the video.

[Modification of the 14th embodiment]
The controller 20 notifies the user through the display 11 that the images recorded in the SD cards 22a and 22b respectively held in the two SD card readers 14a and 14b are images of different areas captured during the same period. should inform Through the display 11, the user notices that two images captured during the same period are recorded on two SD cards 22a and 22b, respectively. When checking the images on the two SD cards 22a and 22b, the playback device should 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 in one SD card reader, the controller 20 detects whether the video imaged during the same period is recorded in the SD card held in the other SD card reader. Therefore, it is preferable to display a message on the display 11 prompting the user to remove that SD card as well. 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 the work vehicle, one of which images the front of the vehicle, and the other image of the work location. For example, it is preferable to use a forklift as the work vehicle equipped with the cameras 17a and 17b, and to set the work location imaged by one camera 17a as the range of the fork lifting operation. The user can confirm the running status of the work vehicle and the working status by video after the work is completed.

For example, it is preferable to mount two cameras 17a and 17b on a vehicle operating in the premises, one for imaging the front of the vehicle and the other for imaging the driver. By viewing the images captured by the two cameras 17a and 17b, it is possible to verify whether or not the driver observes the driving rules in the premises. For example, it can be verified whether or not the user has pointed and cheered when making a left or right turn. If audio is added to the video, it is possible to verify whether or not the player shouted "right, left," at a specific location.

For example, cameras of different types 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 selects an SD card storing images captured by the omnidirectional camera and an SD card storing images captured by a normal camera. can be easily distinguished.

As shown in FIG. 24A, one camera 17a may be housed inside 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 cameras 17a and 17b may be external cameras. The user can select an external camera with suitable performance depending on the object to be imaged and the purpose of the imaged image. In addition, since the positions of the cameras 17a and 17b are not affected by the position of the housing of the system, the degree of freedom in arranging the cameras 17a and 17b increases. The connection terminals 46a and 46b on the housing side of the system 1 for connecting the external cameras 17a and 17b may have different shapes. It is possible to prevent connection errors between two different types of external cameras 17a and 17b.

Three or more SD card readers may be used, and as many cameras as 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 cards.

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

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

In this way, for example, the SD card 22a held in one SD card reader 14a plays the role of recording video in real time, and the SD card 22b held in the other SD card reader 14b serves to record video in the past. It is responsible for the function of providing images of The controller 20 informs the user through the display 11 of the roles of the two SD cards 22a and 22b.

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

[Effects of the fifteenth embodiment]
Next, the excellent effects of the fifteenth embodiment will be described. The driver can drive while referring to the past image 49 displayed on the display 11 . The image captured in the past may be captured while the vehicle is traveling along the recommended travel route. For a driver unfamiliar with the recommended travel route, the image 49 displayed on the display 11 provides useful information for traveling the recommended travel route.

The driver sees the icons 47a and 47b displayed in the mode display area 31, and determines which SD card reader should be loaded with the SD card 22b in which the past images of the recommended travel route are recorded. easy to know. As a result, it is less likely that the SD card will be incorrectly inserted into the SD card reader.

[Sixteenth embodiment]
Next, the system 1 according to the sixteenth embodiment will be described with reference to FIGS. 26 and 27. FIG. Hereinafter, descriptions of configurations common to those of the above-described multiple embodiments will be omitted.

In the 16th embodiment, an SD card 22b on which sales promotion store demonstration video is recorded is attached to one of the SD card readers 14b, and operates in a state of being displayed at the shop front.

26 is a flowchart of the operation of system 1. FIG. When a user, for example, a store clerk performs an operation to start the demonstration mode, the controller 20 switches to one S
A demonstration image for sales promotion recorded in the D card 22b is displayed on the display 11 (step SD1). At the end of the promotional demo video, a video is added to inform consumers that filming is about to begin. For example, it is preferable to play an image including a voice saying, "Since shooting is about to start, please point the camera in the direction you want to shoot."

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

Controller 20 then determines whether or not to end the promotional action. For example, the controller 20 ends its operation when the power supply to the system 1 stops. If the controller 20 does not end the operation, the operation from the reproduction of the demonstration video for sales promotion (step SD1) is repeated. In this way, the controller 20 switches and executes reproduction of the demonstration video, recording of the storefront video, and reproduction of the storefront video in this order.

The controller 20 stores, for example, information specifying the SD card reader 14b holding the SD card 22b recording the video for sales promotion, and the SD card 22a recording the video imaged by the camera 17 displayed in 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. As shown in FIG. An icon 50 is displayed in the mode display area 31 to notify the user of the roles played by the SD cards 22a and 22b. The icon 50 indicates that the image captured by the camera 17 is recorded on the SD card 22a, the image recorded on the SD card 22a is displayed on the display 11, the demonstration image is recorded on the SD card 22b, and It represents that the demonstration video is displayed on the display 11 .

[Effect of the 16th embodiment]
Next, the excellent effects of the sixteenth embodiment will be described. The store can motivate the consumer to purchase by displaying the demonstration video for sales promotion on the display 11 . Furthermore, the functionality of the system can be easily communicated to the consumer. A consumer can check the image captured at the store through the display 11 . This allows consumers to gain a deeper understanding of the system's capabilities and experience its performance.

The consumer can see the demonstration video and know that imaging will start, and can start the action of pointing the camera at the object that the consumer wants to image. It is preferable that the controller 20 finishes the imaging in a certain period of time, automatically reproduces the image, and causes the display 11 to display the image. When playback of the captured video ends, it is preferable to return to playback of the promotional video.

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

The system 1 according to the seventeenth embodiment has an internal power supply (battery) that supplies power to various components within the system 1 when the supply of power from the outside, for example the vehicle, is interrupted. The internal power supply is charged while power is being supplied from the vehicle to the system 1 .

The system 1 operates as a drive recorder when power is supplied from the vehicle (drive recorder mode), and operates as a parking monitoring recorder when the power supply from the vehicle stops while the system is installed in the vehicle. (parking monitoring mode), and a mode (action camera mode) that operates as an action camera when taken out of the vehicle.

FIG. 28 shows a mode transition diagram between operation modes. The system 1 has five operation modes: drive recorder mode, parking surveillance mode, action camera mode, stop A mode, and 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.

When the power supply from the outside stops when the operating mode is the drive recorder mode, the controller 20 causes the operating mode to transition to the parking monitoring mode. In the parking surveillance mode, the controller 20 performs parking surveillance recording. When the main switch is turned off when the operating mode is the drive recorder mode, the controller 20 causes the operating mode to transition to the stop A mode. In stop A mode, the controller 20 does not record video.

When the power supply from the outside is resumed when the operating mode is the parking monitoring mode, the controller 20 causes the operating mode to transition to the drive recorder mode. When the main switch is turned off when the operation mode is the parking monitoring mode, the controller 20 causes the operation mode to transition to the stop B mode. In stop B mode, the controller 20 does not record video.

When the main switch is turned on when the operation mode is the stop A mode, the controller 20 causes the operation mode to transition to the drive recorder mode. When the external power supply stops when the operation mode is the stop A mode, the controller 20 causes the operation mode to transition to the stop B mode.

When the power supply from the outside resumes when the operation mode is the stop B mode, the controller 20 causes the operation mode to transition to the stop A mode. When the main switch is turned on when the operation mode is the stop B mode, the controller 20 causes the operation mode to transition to the action camera mode. The operation when the operation mode is 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 causes the operation mode to transition to the stop B mode. When the power supply from the outside resumes when the operation mode is the action camera mode, the controller 20 causes the operation mode to transition 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 records the video in the SD card 22b held in the other SD card reader 14b in the action camera mode. It has the function of recording video on The controller 20 also has a function of recording video in the SD card 22a held in one SD card reader 14a in the parking monitoring mode. The controller 20 displays on the display 11 the roles played by the SD cards 22a and 22b held in the SD card readers 14a and 14b.

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

[Effect of the 17th embodiment]
A user can take the system 1 out of the vehicle and take an image of a desired object. The SD card 22a recording the video imaged when the system 1 is mounted on the vehicle and the SD card 22b recording the video imaged when taken out of the vehicle can be stored separately. With the system 1 mounted in the vehicle, while recording the image picked up by the camera 17 on one SD card 22a, the image recorded outside the vehicle can be read from the other SD card 22b.

For example, the user can drive the vehicle to go on a vacation, take the system 1 out of the vehicle at the vacation spot, and use it as an action camera. A video captured at a vacation spot can be played back in the car on the way back from the vacation.

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

When the system 1 is used as a drive recorder, the internal power supply of the system 1 is automatically charged while the vehicle is powered on. Therefore, when using the system 1 as an action camera, it is difficult to forget to charge the internal power supply.

[Modification of the 17th embodiment]
After the system 1 operates as an action camera, when the system 1 is mounted in a vehicle and the power supply from the outside is started, the controller 20 automatically reproduces the video recorded on the SD card 22b during the period of operation as the action camera. It is desirable to have a function to play back in a realistic manner. The user can immediately appreciate and enjoy the video captured by the action camera in the vehicle.

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 enjoy the images captured by the action camera on a large screen. Thus, the SD card reader 14b plays a role of holding the SD card for playback. When an SD card in which video such as a movie is recorded is attached to the SD card reader 14b for playback, the movie can be viewed on a large screen in the car.

After the system 1 operates as an action camera, the controller 20 keeps the image captured by the camera 17 until a predetermined time elapses from the time when the system 1 is mounted on the vehicle and the power supply from the outside is started. is displayed on the display 11, and after a predetermined period of time has elapsed, it is preferable to have a function of automatically reproducing the video recorded during the period of operation as the action camera. The user can adjust the posture of the camera 17 while viewing the image displayed on the display 11 while the current image captured by the camera 17 is displayed on the display 11 .

Cameras installed in drive recorders generally have the characteristics of ultra-wide angle and single focus. This feature is common to the features required for action cameras. In order to use the system 1 as an action camera, it is preferable to give the system 1 a waterproof function.

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

When the system 1 is operating in each of the drive recorder mode, parking surveillance mode, and action camera mode, a function is provided to record only the video of a predetermined time before and after the occurrence of a predetermined event to a predetermined SD card. It is preferable that the controller 20 is made to hold it. The time from the detection of event occurrence to the start of video recording is referred to as "preceding time", and the elapsed time from the detection of event occurrence to the end of video recording is referred to as "delay time". A condition (event condition) for determining that an event for recording a video image has occurred may be changed for each operation mode. The event condition is a condition that serves as a trigger for recording video.

[Event conditions applied in the 17th embodiment]
Next, event conditions applicable to each operation mode will be described.

When the operation mode is the drive recorder mode, the event conditions may be detection of impact exceeding a certain threshold, detection of sudden steering operation, detection of sudden braking operation, detection of sudden acceleration, and 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 the window glass, detection of opening of the door, detection of shaking of the vehicle body, and loud noise exceeding the threshold. detection, etc. When the operation mode is the action camera mode, the event conditions may be changed according to what kind of outdoor sports the user using the system 1 is doing.

The event conditions during surfing will be described below. For example, the event condition may be detection of takeoff. Here, takeoff means the moment when you accelerate while paddling in a lying position and stand up with the momentum of the waves. Since the surfboard starts running at the time of takeoff, it is good to detect the takeoff from the acceleration, motion, etc. at that time. A motion sensor capable of measuring acceleration, angular velocity, attitude angle, azimuth, velocity, position, and the like may be used to detect takeoff.

In order to record the image of the moment the surfer caught the wave, the preceding time from the detection of take-off is preferably 30 seconds or more and 2 minutes or less, and particularly preferably about 1 minute. In order to keep a video from takeoff to boarding, it is good to determine the delay time considering the estimated time from takeoff to boarding. For example, the delay time is preferably 1 minute or more and 3 minutes or less, and particularly preferably about 2 minutes. If the take-off is detected again within the delay time, it is preferable to record the video from that point until a predetermined delay time elapses.

Advanced swimmers may accelerate by performing a rip action that hits the bottom on the lip of the wave. At this time, the motion increases and the acceleration also increases. When this lip action is detected during video recording, it is preferable to re-measure the predetermined delay time from the point of detection. For example, the elapsed time from the occurrence of the event may be initialized when the lip action is detected. When the elapsed time is initially set, the video is recorded from the time when the lip action is detected until a predetermined delay time elapses.

Next, event conditions during skiing or snowboarding will be described. For example, the event condition may be detection of the start of slipping. A motion sensor capable of measuring acceleration, angular velocity, posture angle, direction, speed, position, etc., may be used to detect the start of slippage. The preceding time is, for example, preferably 30 seconds or more and 2 minutes or less, and particularly preferably about 1 minute. The delay time is, for example, preferably 1 minute or more and 3 minutes or less, and particularly preferably about 2 minutes.

Further, it is preferable to set the event condition to detection of a fall. A fall can be detected using measurement results of acceleration, angular velocity, attitude angle, direction, etc., by a motion sensor. Further, the event condition may be detection of the speed reaching a predetermined threshold.

The controller 20 preferably extends the delay time when a predetermined trigger is detected during video recording. Since some actions are involved while sliding, it is good to pick up acceleration and motion as triggers. If you are doing a descent, 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 should be terminated when the predetermined delay time elapses from the event detection time.

Next, the event conditions when playing golf will be described. For example, detection of address completion may be used as an event condition (trigger), and recording may be stopped when a predetermined delay time elapses after impact detection. In order to leave the video of the follow-through period, the predetermined delay time may be, for example, 2 seconds or more and 5 seconds or less, and particularly preferably about 3 seconds. Address completion detection and impact detection can be detected by a slim watch type sensor attached to the golfer's wrist (for example, a golf navigator YBW-Putt sold by Yupiteru Co., Ltd.) or the like. By transmitting detection results from a slim watch type sensor to the system 1 using a short-range wireless communication (e.g., Bluetooth (registered trademark) function), the system 1 can identify the point of address completion and the point of impact. .

By linking a swing trainer (for example, the GST series of swing trainers sold by Jupiter Co., Ltd.) having a function of estimating head speed, ball speed, contact rate, flight distance, etc., with the system 1 of the present embodiment, It is preferable to add a function of embedding estimated values such as head speed, ball speed, hit rate, flight distance, etc. in the video. The user can verify the quality of his/her own swing by associating the image of the actual swing with the head speed, ball speed, hit 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, if the system is set on a chair at the back of the bat, the existence of the system 1 is less likely to be noticed by others. It is even better if the system 1 is attached to a fixing device that has a function of placing the system 1 on a chair and maintaining its posture. Furthermore, when a chair or the like is provided with a can holder, the system 1 may be fitted with a fixing device having a function of holding the posture of the system 1 in the can holder. The system 1 may be provided with a mounting portion for mounting such a fixation device.

When going to a golf driving range, it is common to hit about 100 to 300 balls per time. For example, under the condition that about 10 seconds of video is recorded per shot, about 3000 seconds of video is recorded per practice session. As an example, it is desirable to prepare an SD card with a capacity capable of recording 3000 seconds of video under the conditions of 1080p resolution and 30fps frame rate. Golfers also tend to want higher frame rates than video resolutions to validate their swings. The system 1 preferably has a function of changing the frame rate by user's operation. It is even better to have a function to automatically adjust 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 a high frame rate, it is possible to record video for the required time.

It is preferable that the frame rate of the video after detection of address completion is higher (the number of frames is increased) than the frame rate of video before detection of address completion. By lowering the frame rate of the video before detection of address completion, the overall data amount of the video can be reduced.

Instead of recording all swings, only swings satisfying specific conditions may be recorded. For example, it is preferable to record only images of swings determined to be miss shots and swings determined to be nice shots. The system 1 preferably has a function of distinguishing between a nice shot and a miss shot. Whether or not it is a miss shot and whether or not it is a nice shot may be determined based on estimated values such as the hit rate, head speed, and flight distance. For example, a swing estimated to have a hit rate of 1.4 or more, a head speed of 50 m/s or more, and a flight distance of 260 yards or more may be determined as a nice shot. Also, it is preferable to determine that a swing with a hit rate of 1.2 or more and 1.3 or less is a missed shot.

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

As another example, it is preferable to record images of all swings, and to record together with the images, marks identifying good shots and miss shots. By using the marks for identifying nice shots and miss shots, it is possible to easily extract nice shot images and miss shot images from a long-time video.

It is preferable to record the number of balls hit for each type of club in practice at a golf driving range together with date and time information. Based on this record, the user can know the history of the number of balls for each club type. The number of balls hit can be considered as the amount of practice. For example, one year ago there was a lot of driver practice, but recently there is a tendency to have a lot of iron practice.

Information indicating the time interval between hitting one ball and hitting the next ball at the driving range may be recorded together with the video. For example, the time interval is relatively short during a period of continuous hitting with the same club, and the time interval is relatively long when the club is changed. The time interval recorded with the video is a clue to find the point of club change.

For example, a beginner whose basic form is not fixed goes to a golf driving range in order to learn the basic form. For example, there are various remedies for users who want to keep their left shoulder from opening to prevent the driver from slicing. After trying various countermeasures and finding a countermeasure that seems to be effective, the same countermeasure is adopted and continued to be used in order to confirm reproducibility. Check the video of the form at this time during the break, and if it is different from the image, continue typing. For example, by comparing a model video posted on a video posting site with your own form, you can verify whether you are swinging as you imagined. It is possible to improve by repeating the practice shots and the recording of the images thereof and the confirmation of the images. The information indicating the time interval between hitting one ball and hitting the next ball can be used as a clue to find out the point in time when the video is checked during this repeated practice.

The event conditions described above are applicable not only to the system 1 according to the 17th embodiment having the drive recorder function and the action camera function, but also to a dedicated action camera.

[Eighteenth embodiment]
Next, the system according to the eighteenth embodiment will be described with reference to FIG. Hereinafter, descriptions of configurations common to those of the above-described multiple embodiments will be omitted.

In the eighteenth embodiment, key information indicating access authority is stored in the 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 cards held in the SD card readers 14a and 14b based on the read key information. Having the ability 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 in recording the video imaged by the camera 17, and an SD card reader that holds an SD card storing key information. It has a function to inform the user by an image to be displayed.

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

[Effect of the 18th embodiment]
Next, the excellent effects of the eighteenth embodiment will be described. Since 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, system security can be enhanced.

By viewing the image displayed on the display 11, the user can easily know which SD card reader should be loaded with the SD card 22b storing the key information. As a result, errors in mounting the SD card can be reduced.

[Modification of 18th embodiment]
For example, the controller 20 may have a function of operating in either an administrator mode or a user mode. The key information to be stored in the SD card 22b may be permission of operation in administrator mode, permission of operation only in user mode, or the like. For example, the controller 20 can initialize the SD card 22a held in the SD card reader 14a when operating in the administrator mode, but can initialize the SD card 22a held in the SD card reader 14a when operating in the user mode. , the SD card 22a held in the SD card reader 14a cannot be initialized. For example, the information stored in the SD card 22a may be divided into information that can be viewed only by the administrator and information that can be viewed by general users. When the controller 20 operates in the administrator mode, it can read information that only the administrator can view, but when it operates in the user mode, it reads information that only the administrator can view. It should be made unreadable. The controller 20 preferably has a function of operating in user mode when an SD card storing key information is not held in any SD card reader.

The SD card 22b, which stores the key information, is preferably stored with information for driver guidance (for example, a video image). The controller 20 may read information for driver guidance and display it on the display 11 or output audio from the speaker 15 . When an SD card in which a video image for driver guidance is stored is loaded, the controller 20 may automatically reproduce the video image for driver guidance. By noticing the information displayed on the display 11 and the information output from the speaker 15, the driver is motivated to drive safely. The manager may store driver guidance information in the SD card 22b for each driver based on the driver's driving habits, and pass the information to the driver.

For example, an SD card 22b storing information prompting a stop may be given to a driver who has a habit of ignoring a stop. When the controller 20 detects a stop sign by image analysis of the video captured by the camera 17 , the controller 20 preferably outputs information prompting a stop from the display 11 or the speaker 15 . As the information prompting the user to stop, for example, it is preferable to output a voice saying "Let's stop at a place with a stop sign." For example, an SD card 22b that stores information to urge the driver not to make sudden steering maneuvers may be given to a driver who frequently makes sharp steering maneuvers.

The manager can see the images recorded all the time while the vehicle is running, and can know the driving habits of each driver. In addition, by associating the video recorded on the SD card with the location information, it is possible to specify the location where the driver has performed dangerous driving in the past. The manager should add this position information to the information for driver guidance and store it. When the controller 20 detects that the driver has approached a place where dangerous driving has been performed in the past, the controller 20 may output from the display 11 or the speaker 15 information calling attention not to drive dangerously. Further, when the controller 20 detects the occurrence of dangerous driving similar to the dangerous driving stored as information for driver guidance, the controller 20 outputs from the display 11 or the speaker 15 information calling attention not to perform the dangerous driving. do it. Further, the controller 20 may output information from the display 11 or the speaker 15 to call attention not to perform dangerous driving when an event that is predicted to cause dangerous driving occurs. For example, when a traffic signal is detected in the image captured by the camera 17, it is preferable to output from the display 11 or the speaker 15 information calling attention not to ignore the signal. For example, when a pedestrian is detected in the video imaged by the camera 17, information calling attention to the pedestrian may be output from the display 11 or the speaker 15. FIG.

As a notification means for notifying the user of the SD card 22b storing the key information, a mark indicating the key information is placed on the surface of the casing near the SD card reader 14b to which the SD card 22b storing the key information should be loaded. should be provided. Further, when the controller 20 detects that the SD card 22b storing the key information has been inserted into the wrong SD card reader, the controller 20 displays information prompting the user to insert the SD card 22b into the correct SD card reader through the display 11 or the speaker. It should be output from 15.

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

In the 19th embodiment, the controller 20 loads the SD cards 22a and 22b held in the two SD card readers 14a and 14b with images having a mutually complementary relationship and two SD cards 22a and 22b. record the identifying information that associates the Furthermore, when an SD card having identification information recorded therein is held in only one SD card reader, a function is provided to inform the user through the display 11 or the speaker 15 that there is another SD card that complements each other. have

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

When only one of the SD cards is attached to the SD card reader, the controller 20 will say, "One of the two SD cards forming a pair has been attached. The other paired SD card has also been attached. Do you want to continue processing?” is displayed on the display 11. The user can select “yes” or “no” by operating the operation button 12 .

If the user selects "yes", the controller 20 continues processing. For example, video is recorded only on the attached SD card. If the user selects "No", the controller 20 waits until another SD card is inserted into the SD card reader.

Also, when only one of the two paired SD cards is removed from the SD card reader, the controller 20 may inform the user that the paired SD card remains in the SD card reader.

[Effect of the 19th embodiment]
Next, the effects of the nineteenth embodiment will be described. To make it difficult for a user to forget to attach or remove one of two SD cards having a mutually complementary relationship when an SD card is attached to or removed from an SD card reader. It is possible to avoid the occurrence of a situation where two SD cards having a mutually complementary relationship are lost and useful images cannot be obtained.

[Modification of the 19th embodiment]
As a mutually complementary relationship, for example, one is an SD card initialized in a general-purpose format, the other is an SD card initialized in a unique format, and the images recorded on both are the same. It is preferable that the relationship is Depending on the equipment to be reproduced, the video can be reproduced by inserting an SD card with a format supported by the equipment. For example, the FAT format may be adopted as a 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 installed, the controller 20 may display a message on the display 11 prompting the user to install the FAT format SD card.

The controller 20 may record video in YP format on SD cards attached to two SD card readers. At this time, when one of the SD cards is removed and the FAT format SD card is installed, the controller 20 may display a message on the display 11 prompting the user to install the YP format SD card. Alternatively, a message may be displayed on the display 11 asking the user to confirm that the newly installed FAT format SD card may be initialized in the YP format.

When an SD card not storing key information is attached to an SD card reader to which an SD card storing key information should be attached, the controller 20 sends a message prompting the user to attach an SD card storing key information. should be displayed on the display 11.

[Twentieth embodiment]
Next, the system 1 according to the twentieth embodiment will be described with reference to FIG. Hereinafter, descriptions of configurations common to those of the above-described multiple embodiments will be omitted.

In the twentieth embodiment, the controller 20 has the function of initializing the SD cards 22a and 22b held in the SD card readers 14a and 14b. When the user performs an operation to initialize the SD cards held in one SD card reader, the controller 20 receives information specifying the SD card to be initialized specified by the user and waits for confirmation of initialization execution. It has a function of displaying the status 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. FIG. A graphic representing the outline of the system 1 is displayed in the image display area 30 so that the positions of the SD card insertion slots 10a and 10b can be identified. Furthermore, the SD card insertion slot into which the SD card to be initialized designated by the user is inserted is displayed in a manner distinguishable from other SD card insertion slots, and a message requesting confirmation of whether or not to initialize is displayed. . For example, display the message "Are you sure you want to initialize?" The user can select "yes" or "no".

If the user selects "yes", the controller 20 initializes the SD card specified by the user. If the user selects "No", the controller 20 aborts the initialization process.

[Effects of the twentieth embodiment]
Next, the effects of the twentieth embodiment will be described. Since the controller 20 executes 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's operational error. As a result, it is possible to prevent the video that is not desired to be deleted from being deleted.

Since the position of the SD card insertion slot into which the specified SD card to be initialized is inserted is displayed graphically, the user can easily make a mistake when the SD card to be initialized is specified incorrectly. can notice.

[21st embodiment]
Next, the system 1 according to the twenty-first embodiment will be described with reference to FIG. Hereinafter, descriptions of configurations common to those of the above-described multiple 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 mounted in the system 1. FIG. In the twenty-first embodiment, identification marks are displayed on each of the SD card insertion slots 10a and 10b of the system 1. FIG. The identification mark 60a displayed near one SD card insertion slot 10a and the identification mark 60b displayed near the other SD card insertion slot 10b are different in at least one of shape and color. In the example shown in FIG. 33, one identification mark 60a has a star shape and the other identification mark 60b has a triangular shape.

The system 1 comes with stickers 61a and 61b to be stuck on the SD card. The stickers 61a and 61b are provided with identification marks having the same shape and color as the identification marks attached to the SD card insertion slots 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 21st embodiment]
Next, the excellent effects of the twenty-first embodiment will be described. The user can attach the stickers 61a and 61b to the SD cards 22a and 22b, respectively, to associate the SD cards with the SD card slots. When the user inserts the SD card into the SD card reader, he/she can easily know which slot to insert the SD card by looking at the identification mark. As a result, it is possible to obtain the effect of reducing erroneous insertion of the SD card.

[Modification of the 21st embodiment]
The controller 20 preferably causes the SD card attached to the SD card reader to store information specifying the identification mark associated with the SD card reader. For example, if the SD card 22a storing information specifying a star-shaped identification mark 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. The identifying information can be read to detect incorrect mounting. When the controller 20 detects incorrect mounting, the controller 20 preferably displays a message on the display 11 notifying of the incorrect mounting. For example, it is preferable to display a message prompting the user to install an SD card with a triangular sticker attached. The user can see the message displayed on the display 11 and notice that the attachment is incorrect.

[22nd embodiment]
Next, the system 1 according to the twenty-second embodiment will be described with reference to FIGS. 34A and 34B. Hereinafter, descriptions of configurations common to those of the above-described multiple embodiments will be omitted.

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

The SD card 22a inserted into the SD card reader 14a corresponding to one SD card insertion port 10a is used for applications that require frequent insertion and removal, and the SD card reader 14b corresponding to the other SD card insertion port 10b is used. The SD card 22b attached to the is used for applications that do not require frequent attachment/detachment.

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

[Effect of the 22nd embodiment]
A user can notice the role of the SD card inserted through the SD card insertion slot by sensing that it is difficult to insert or remove the SD card through the SD card insertion slot. For example, when it is difficult to insert or remove the SD card through the SD card slot, the user may assume that the SD card that is inserted into the SD card reader through the SD card slot is not intended for carrying, but is in principle intended to be used while attached. I notice that. Conversely, when it is easy to attach/detach through the SD card slot, the user realizes that the SD card inserted into the SD card reader through the SD card slot is intended for carrying.

[Modification of the 22nd embodiment]
When the system 1 is installed in a vehicle, one SD card reader should be placed at a position where it is more difficult to insert an SD card than the other SD card reader. The system 1 may inform the user of the role of the SD card held in the SD card reader according to the difference in the position of the SD card reader.

As a position where the SD card can be easily installed, for example, when the housing is mounted in a vehicle, there is an empty space on the surface of the housing the size of which corresponds to the area from the wrist of a typical adult male on the surface of the housing. An area that is secured contiguously is exemplified. For example, a sphere with a diameter of 10 cm may be used as the size corresponding to the tip of a general adult male's wrist. An example of a position where it is difficult to insert an SD card is an area where no free space is secured.

For example, as a position where it is difficult to insert the SD card, it is preferable to select a housing surface facing forward, upward, or in the middle of the vehicle. As a position where the SD card can be easily inserted, for example, the surface of the housing facing in the left-right direction or in the direction of the interior of the vehicle may be used. The surface facing the direction of the bracket for attaching the housing to the vehicle may be located at a position where it is difficult to mount the SD card.

The controller 20 may, for example, record an image captured by the camera 17 while the vehicle is parked in an SD card held in an SD card reader located at a position where it is difficult to insert an SD card. To prevent a situation in which a driver mistakenly removes an SD card from an SD card reader when parking a vehicle, thereby making it impossible to record video during the parking period.

As shown in FIG. 34B, the SD card insertion slot 10b may be provided with a lid 62 that can be opened and closed to make it difficult for the SD card to pass through. The SD card slot 10a, through which the SD card can be easily passed, should be open at all times.

[23rd embodiment]
Next, the system 1 according to the twenty-third embodiment will be described with reference to FIG. Hereinafter, descriptions of configurations common to those of the multiple embodiments described above will be omitted.

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

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

The system 1 informs the user of the roles played by the SD cards held in the SD card readers 14a and 14b by the configuration in which the two SD card insertion slots 10a and 10b are different in size.

[Effect of the 23rd embodiment]
Next, the excellent effects of the twenty-third embodiment will be described. A user can see the size of the SD card insertion openings 10a and 10b and notice the role of the SD card inserted into the SD card reader through the SD card insertion openings. For example, the user realizes that a normal-sized SD card inserted through the large SD card slot 10b is unlikely to be lost during transportation, and as a result, the SD card inserted through the SD card slot 10b is suitable for carrying around. I realize it is. Conversely, it is noticed that the micro SD card inserted through the smaller SD card slot 10a is, in principle, always used while being inserted into the SD card reader 14a.

For example, it is stipulated that an SD card on which images are constantly recorded should be submitted to the administrator each time the vehicle is driven, and an SD card on which events are recorded should be submitted to the administrator only when a predetermined event occurs. In this case, it is better to always record to a normal size SD card and record events to a micro SD card.

[24th embodiment]
Next, the system 1 according to the twenty-fourth embodiment will be described with reference to FIG. Hereinafter, descriptions of configurations common to those of the above-described multiple embodiments will be omitted.

The controller 20 has a function of detecting errors in 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 one of the SD cards held in the SD card reader and that the SD card in which the error occurred has been removed from the SD card reader, the other SD card is also removed. It has a function of displaying on the display 11 a message prompting the person in charge of maintenance (administrator) to submit it.

FIG. 36 shows an example of an image displayed on the display 11. FIG. A message is displayed in the image display area 30 that reads, "The SD card in which the error occurred has been removed. Please remove the other SD card and submit it to the administrator."

[Effect of the 24th embodiment]
Next, the excellent effects of the twenty-fourth embodiment will be described. By inspecting not only the SD card with the error but also the SD card with no error, the cause of the error can be easily isolated. Errors include, for example, SD card failure, write failure, overwrite count exceeding a specified value, and the like. By seeing the message displayed on the display 11, the driver is prevented from forgetting to remove the SD card and forgetting to submit it to the person in charge of maintenance.

[25th embodiment]
Next, the system 1 according to the twenty-fifth embodiment will be described with reference to FIG. Hereinafter, descriptions of configurations common to those of the above-described multiple 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 protection switches (write protect switches) 62a and 62b that can be turned on and off by a user's external operation. When the write prohibition switches 62a and 62b are turned on, respectively, writing to the SD cards 22a and 22b is prohibited. One SD card reader 14b includes an actuator 63 that turns on a write inhibit switch 62b of the attached SD card 22b. Based on a command from the controller 20, the actuator 63 turns on the write inhibit switch 62b of the SD card 22b attached to the SD card reader 14b. The actuator 63 that turns on the write inhibit switch 62b can be implemented by, for example, a solenoid actuator.

The controller 20 has a function of controlling the actuator 63 to turn on the write inhibit switch 62b of the SD card 22b when it detects that a predetermined event has occurred. In particular, the controller 20 preferably has a function of turning on the write inhibit switch 62b after a predetermined period of time has elapsed since the occurrence of the event was detected.

[Effect of the 25th embodiment]
Next, the excellent effects of the twenty-fifth embodiment will be described. When the controller 20 puts the SD card 22b into a write-protected state, it is possible to prevent overwriting of video recorded when an event occurs.

[26th embodiment]
Next, the system 1 according to the twenty-sixth embodiment will be described. Hereinafter, descriptions of configurations common to those of the multiple embodiments described above will be omitted.

The controller 20 of the system 1 according to the twenty-sixth embodiment can select and perform one of the functions of the first to twentieth embodiments and the twenty-fifth embodiment described above. For example, it is possible to change which role the SD card is to play, as described in the above embodiment, by the user's operation. For example, the user can choose which role the SD card will play. When the SD cards are removed from all the SD card readers, the role of the SD card should be returned to the preset basic role. The role of the SD card may not be determined before the SD card is attached to the SD card reader, and the role may be determined after the SD card is attached to the SD card reader.

[27th embodiment]
Next, a twenty-seventh embodiment will be described. Hereinafter, descriptions of configurations common to those of the above-described multiple embodiments will be omitted.

In the above-described embodiment, the controller 20 informs the user of the role played by the SD card through an image or the like displayed on the display 11, but in the twenty-seventh embodiment, the controller 20 uses two SD cards held in SD card readers. It has a function to inform the user of the mutual relationship of the information stored in the card.

The user can know the mutual relationship of the information stored in the SD cards held by the two SD card readers. Therefore, convenience for the user is enhanced.

Next, the mutual relationship of information stored in two SD cards will be illustrated. First, a case where the information stored in the two storage media are both images will be exemplified.

As for the mutual relationship between the images, it is preferable that the two images are paired to make sense, and that only one of the images does not make sense, or that the desired purpose of use cannot be achieved. When information stored on two SD cards has this relationship, the controller 20 should inform the user via the display 11 that only one SD card is not available. Since the user is urged to carry two SD cards as a set, it is difficult for the user to forget to carry one SD card and become unable to use the video.

As for the interrelationship between the images, it is preferable that the imaged object and the imaged time are the same, and both the images have a value of use on their own. Such relationships include, for example, the relationship that the two SD cards have exactly the same recording format, the relationship that the two SD cards have different format formats, and the relationship that the video frames recorded on the two SD cards Recording conditions (setting conditions) such as rate and resolution are different. One records all the images captured during the shooting period, and the other records only the images before and after the occurrence of a predetermined event. and that both record images before and after the occurrence of the event, but the type of the event is different. When the information stored on the two storage media have this relationship, the controller 20 may inform the user via the display 11 that the image can be used alone and the differences between the two images. . The user can determine which SD card video is preferable to be viewed according to the purpose of use.

As for the interrelationship between the images, it is preferable that the objects to be imaged are the same but the imaging times are different, so that the purpose of use of the images is different. As such a relationship, for example, the images captured by the camera 17 mounted on a vehicle running on a prescribed route may be captured at different dates and times. When the information stored in the two SD cards has this relationship, the controller 20 should notify the driver of the vehicle of the image capturing timing via the display 11 . The driver of the vehicle can check the video recorded in the past when driving the predetermined route, so it is difficult for the driver to make a mistake in the route.

As a mutual relationship between the images, it is preferable that the images are images of different objects captured by different cameras at the same time. Such relationships include, for example, the relationship between the image in front of the vehicle and the image inside the vehicle, the relationship between the image in front of the vehicle and the image behind the vehicle, the relationship between the image in front of the work vehicle and the image of the work target location, and the like. can be mentioned. When the information stored in the two SD cards has this relationship, the controller 20 should inform the user via the display 11 that the two images are taken at the same time. The user can recognize that it is meaningful to synchronize the time and reproduce the two videos.

As a mutual relationship between images, it is preferable that the images are images captured under different environments using the same camera. Examples of such a relationship include images captured by a camera mounted in a vehicle and images captured by a camera taken out of the vehicle and attached to equipment for outdoor sports. When the information stored in the two SD cards has this relationship, the controller 20 should notify the user through the display 11 that the two images were taken under different environments. . The user can know that different images captured under different environments are recorded on the two SD cards. Furthermore, it is especially preferable for the controller 20 to notify, via the display 11, which storage medium the captured image is recorded in which environment. The user can know in which SD card the captured image is recorded under which environment.

As a mutual relationship between the images, it is assumed that the images are 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 imaged image. good. The additional image may be, for example, a warning image issued when the vehicle approaches the radar device. When the images recorded on the two SD cards have this relationship, the controller 20 determines through the display 11 that the image recorded on one of the SD cards is a composite image superimposed with an additional image. The user should be informed of this.

As for the interrelationship of the images, it is preferable that the two images are combined to achieve a common purpose, but one is the image prepared in advance and the other is the 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, through the display 11, detects that one SD card has pre-prepared video recorded and the other SD card should inform the user that recording will take place. The user can know that when the video on one SD card is prearranged, the other SD card should be used for recording. Consumers can get an overview and performance of the system by watching promotional videos, and experience the operation and performance of the system by watching live recorded videos.

As for the interrelationship between the images, one image may be captured by a camera, and the other image may be a template image for extracting a specific image from the image captured by the camera. The controller 20 preferably informs the user via the display 11 that the image recorded on one SD card is the template image for image recognition and the other is the SD card for image recording. A user can extract different images by adding or modifying the template image.

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

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

As for the mutual relationship between the information, it is preferable that one information is an image captured by a camera mounted on a vehicle, and the other information is log data recording vehicle information in chronological order. The controller 20 preferably informs the user through the display 11 that one is the image captured by the camera mounted on the vehicle and the other is the log data. The user can know that useful information regarding the running of the vehicle can be obtained by combining the video and log data respectively recorded on the two SD cards.
@
In each of the above-described embodiments, a system in which two SD card readers are mainly installed has been described, but it is obvious that three or more SD card readers may be installed. .

It goes without saying that each of the above-described embodiments is an example, and partial substitutions or combinations of configurations shown in different embodiments are possible. Each component described in each embodiment may be combined arbitrarily. In addition, the invention and each component described in the means for solving the problems may be further applied to the combination of each component of each embodiment. Similar actions and effects due to similar configurations of multiple embodiments will not be sequentially referred to for each embodiment. Furthermore, the invention is not limited to the embodiments described above. For example, it will be obvious to those skilled in the art that various changes, improvements, combinations, etc. are possible.

1 drive recorder 3 windshield 4 room mirror 5 cigar socket 6 power cable 10a, 10b SD card slot 11 display 12 operation button 13 joint rails 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 Timers 20e, 20f DMA controllers 20g, 20h Buffer memory 21 Databases 22a, 22b SD card 22c SDIO card 30 Image display area 31 Mode display area 32 Time display area 33 Image captured by camera 34 Image showing alarm information 37 Frame rate icon 38 indicating the SD card in operation icon 39 icon indicating the format of the SD card 40 icon indicating the interface standard of the medium container 41a icon indicating the SD card for recording video 41b the SDIO card with wireless communication function Icon 42a indicating SD card for recording video Icon 42b Icon indicating SD card for recording event conditions Marks 44a to 44d indicating occurrence of event Buttons 45a and 45b for designating mode Camera and SD card reader Icons 46a and 46b indicating correspondence with Connection terminal 47a Icon 47b indicating that video is recorded on the SD card Icon 48 that indicates that the video recorded on the SD card is displayed on the display Present video 49 Past video 50 Icon 51a Icon 51b indicating that the image captured while mounted in the vehicle is to be recorded in one SD card. Icon 52a indicating that the image captured while being taken out of the vehicle is to be recorded to the other SD card. icon 52b indicating that the key information is stored in one SD card icon 53a and 53b indicating that the key information is stored icon 55 indicating the SD card icon 60a and 60b indicating that the video is alternately recorded on the SD card and Identification marks 61a, 61b indicating the correspondence relationship between, stickers 62a, 62b, write protection switch 63, actuator

Claims (3)

at least two media receptacles for holding removable storage media;
It has a function of accessing storage media accommodated in each of the medium storage units, and a function of storing an image captured by an imaging device mounted on a vehicle in the storage medium held in at least one of the medium storage units. having a control means with
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 medium storage units. A system characterized by causing an output means to output a message prompting removal of the other storage medium after detecting that. The control means records an image captured by an imaging device displayed in a store in place of the imaging device mounted on the vehicle in the storage medium held in the medium storage unit, and records the image after a predetermined period of time has elapsed. 2. The system according to claim 1, having a function of stopping the recording and displaying the recorded image on the display means. When a video for sales promotion is recorded in the storage medium held in one of the medium storage units,
Instead of the image pickup device mounted on the vehicle, the image picked up by the image pickup device displayed at the dealer is recorded in the storage medium held in the other medium storage unit, and the recording is performed after a predetermined time has passed. 3. A system according to claim 1 or 2, having the function of stopping and displaying the recorded video on the display means.

Images