JP2017195755A - Device, on-vehicle equipment and system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device and the like capable of satisfactorily supplying power to on-vehicle equipment.SOLUTION: A charge and discharge control unit 31 controls a power supply path in a manner that power is supplied from ACC power to an inner battery 34 and a DC-DC converter 32, during power supply from the ACC power. This causes the inner battery 34 to be charged, and the DC-DC converter 32 supplies a drive recorder 4 with power having a converted voltage. The charge and discharge control unit 31, on determining that the ACC power is OFF, performs control to discharge the inner battery 34 so as to supply power from the inner battery 34 to the DC-DC converter 32. This enables a monitor battery 3 to continue power supply to the drive recorder 4 if power supply from a vehicle is cut off.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an apparatus, an in-vehicle device, a system, and the like.

  Conventionally, an apparatus for supplying power to an in-vehicle device is known (Patent Document 1). Patent Document 1 describes a bracket that includes a solar cell and supplies electricity generated by the solar cell to an in-vehicle device. The bracket described in Patent Document 1 is fixed on a dashboard. Moreover, in order to generate power from the solar cell, it must be placed in a position exposed to direct sunlight.

JP 2012-66744 A

  As described above, the bracket of Patent Document 1 is fixed on the dashboard. For this reason, when a bracket is a structure provided with a storage battery, a storage battery will be fixed to the position which receives direct sunlight. However, since the temperature range in which the storage battery can be charged / discharged is limited, if the temperature rises due to direct sunlight, the upper limit of the temperature at which the storage battery can be charged / discharged will be exceeded, and power supply to in-vehicle equipment by the storage battery will not be possible. There is a risk that it will not be possible.

  This application is proposed in view of said subject, Comprising: It aims at providing the apparatus etc. which can perform the electric power feeding to vehicle equipment favorably.

  (1) An apparatus of the present invention is an apparatus that is interposed between a vehicle and an in-vehicle device and supplies electric power to the in-vehicle device, and is separate from the in-vehicle device. A charge / discharge control unit that is a control unit that controls power supply to the device, and when the power is supplied from the vehicle, the charge / discharge control unit supplies power to the in-vehicle device using the vehicle as a power supply source and charges the battery, When power supply from the vehicle is cut off, the power supply source for the in-vehicle device is switched from the vehicle to the battery, and the power supply to the in-vehicle device is continued for a predetermined period.

  In this way, even when power supply from the vehicle is interrupted, power supply to the in-vehicle device can be continued. For example, when the power supply from the vehicle is interrupted, for example, when the vehicle drive source is stopped, when the power supply from the vehicle battery is stopped when the vehicle drive source is stopped, when the vehicle is stopped, For example, if the vehicle is empty during parking. Even in such a case, the in-vehicle device can continue the operation by the power supply from this device. In particular, in the case of a configuration (7) described later in which the configuration of the in-vehicle device operates during a period during which power is supplied and stops when the power supply is stopped, the device is mounted in response to the fact that the device stops supplying power after a predetermined period of time. Since the device stops operating, the in-vehicle device can be operated for a desired time. In addition, for example, in a configuration in which the in-vehicle device is operated by power supply from the vehicle battery while the vehicle drive source is stopped, the vehicle battery may rise, but this device is interposed between the vehicle and the in-vehicle device. Thus, it is possible to make it difficult to raise the vehicle battery even when the in-vehicle device is operated. For example, when the battery goes up, it is possible to prevent a situation in which the cell motor of the engine cannot rotate, the engine cannot be started, and the vehicle cannot be driven.

  Furthermore, since it is a separate body, the apparatus can be installed at a position different from the position of the in-vehicle device, and the configuration (2) described later is particularly good because it can suppress the temperature rise. The battery may be, for example, a lithium ion battery, a lithium ion polymer battery, or the like, but a lithium hydrogen rechargeable battery is particularly preferable because it has a wide chargeable temperature range and a dischargeable temperature range. The in-vehicle device is preferably a laser detector, a security device, or the like, but it is preferable to have a large internal heat generation amount. A device having a large internal heat generation amount is preferably a device that performs image processing, such as a drive recorder. Since the device is separate from the in-vehicle device, it can be made less susceptible to heat generation.

  Further, the in-vehicle device is preferably installed in a place that receives heat from the outside, and the present apparatus is preferably installed in a place that is difficult to receive heat from the outside. For example, direct sunlight or an engine may be used as the outside. The in-vehicle device can be installed at a position where it receives direct sunlight, and the apparatus can be installed at a position where direct sunlight is blocked. In particular, the in-vehicle device is preferably installed near the glass between the outside and the inside of the vehicle, and the apparatus is not installed near the glass. In addition, as an in-vehicle apparatus, it is good not only as an apparatus installed in a vehicle integrally with a vehicle previously, but as a device separated from a vehicle and installed in a vehicle later.

  (2) The in-vehicle device is a drive recorder that captures the outside of the vehicle, and may be configured to have a size and shape that are installed at a position where direct sunlight other than the engine room of the vehicle is blocked.

  The drive recorder is installed near the glass in order to photograph the outside of the vehicle through a glass such as a windshield. However, the vicinity of the glass is also a place where the temperature is likely to rise due to direct sunlight. Therefore, it is possible to make it difficult to raise the temperature of the battery by installing it in a place where direct sunlight is blocked. Further, by installing this apparatus in a place other than the engine room where the vehicle drive source is housed, it is possible to make it less susceptible to heat from the vehicle drive source. By making it difficult for the temperature of the battery to rise, it is possible to prevent charging and discharging from becoming impossible as the temperature rises, and it is possible to make it difficult for power to be supplied to the in-vehicle device. Even after the power supply from the vehicle is cut off, the in-vehicle device can continue to operate.

  (3) The in-vehicle device is not provided with a battery, or is provided with a battery smaller than the battery, and is installed in a place where the size and weight are limited. Should be configured in a place with few restrictions.

  In this way, the apparatus can be made larger and heavier, so that the capacity of the battery can be increased. Even after the power supply from the vehicle is cut off, the in-vehicle device can continue to operate for a long time. The in-vehicle device may be installed in a place where there is a size limit when mounting, for example, a windshield whose mounting range is defined by law. Further, the in-vehicle device is preferably installed on a position where the vehicle may fall due to its weight or on a surface that is not parallel to the floor surface of the vehicle, such as a windshield or a dashboard.

  (4) It is good to set it as the structure set as the magnitude | size and shape installed in the position which does not press the living space of a vehicle.

  In this way, it is preferable that the vehicle does not hit a person or get in the way even when driving and getting on and off the vehicle while riding in the car. The inventors have found that the position having the configurations (2), (3), and (4) is particularly preferably under the seat, for example, under the trunk room or under the dashboard.

  (5) The apparatus includes a communication unit that communicates with the in-vehicle device, and a control unit. When the charge / discharge control unit switches the power supply source for the in-vehicle device from the vehicle to the battery, the power supply source becomes the battery. A switching signal (hereinafter referred to as a battery switching signal) indicating that the switching has been performed may be output by the communication unit.

  In this way, the in-vehicle device can know that the power supply source has been switched to the battery. In particular, when the power supply source is switched to a battery, combining with the configuration of (11), which saves power, is particularly good because the amount of power to be supplied can be reduced and the battery can last longer. The charge / discharge control unit and the control unit may be realized by one control unit, or may be realized by different control units.

  (6) The apparatus includes a communication unit that communicates with the in-vehicle device, and a control unit, and when the power supply from the vehicle is resumed, the charge / discharge control unit switches the power supply source to the in-vehicle device from the battery to the vehicle. The control unit, when the power supply source to the in-vehicle device is a battery, when the charge / discharge control unit switches the power supply source to the in-vehicle device from the battery to the vehicle, a signal indicating that the power supply source has been switched to the vehicle ( Hereinafter, the vehicle switching signal) may be output by communication means.

  In this way, the in-vehicle device can know that the power supply source has been switched to the vehicle again. In particular, when combined with the configuration of (11) in which the shooting condition is switched by the power supply source, the shooting condition can be switched as the power supply source switches to the vehicle again, which is particularly good. When the configurations of (5) and (6) are provided, each communication means and each control means may be realized so as to share one communication means and one control means, or different communication means. It may be realized by a control means.

  (7) It is good to set it as the structure which is the vehicle-mounted apparatus electrically fed from this apparatus, operate | moves during the electric power feeding, and stops when electric power feeding is stopped.

  In this way, even if the power supply from the vehicle is cut off, the in-vehicle device can continue to operate by receiving the power supply from the device.

  (8) The on-vehicle device records the first continuous recording function that is a function of recording when power is supplied from the vehicle, and when a predetermined event occurs when power is supplied from the vehicle. A first event recording function which is a function to perform, a second constant recording function which is a function to record when power is supplied from the battery, and a time when power is supplied from the battery, and a predetermined event occurs. A second event recording function which is a function to record when the first event is performed, a first setting function for setting the first constant function, a second setting function for setting the second constant function, and a setting for the first event recording It may be configured to include a third setting function for commonly setting the second event recording setting.

  When setting, the user may feel troublesome if there are many settings, and it may be difficult to grasp. Setting the first constant function setting, the second constant function setting, and the third setting function for setting the first event recording setting and the second event recording setting in common makes the user feel bothered. Can be reduced, making it easier to grasp. The in-vehicle device can operate with an optimum setting according to the applied state.

  In addition, the configuration other than the configuration (8) is also possible. For example, a setting function for setting the first constant function, a setting function for setting the first event function, a setting function for setting the second constant recording setting and the second event recording setting in common, It is good as a structure provided with.

  (9) The in-vehicle device includes a wireless communication function, and a creation unit that creates communication data of one communication unit having a plurality of frames, which is transmitted by the wireless communication function based on the video captured by the photographing unit, It is preferable that at least one frame out of a plurality of frames included in communication data of one communication unit includes a reference frame that is a frame that can be reproduced independently.

  In this way, as long as the reference frame of the communication data for one communication unit can be received, the video for the period of the one communication unit included in the communication data of the one communication unit can be reproduced independently. The video may be, for example, information of an image having information such as 30 frames in 1 s and in which still image information is arranged in time order. For example, one communication unit may be a group divided based on time, number of frames, data capacity, and the like. The communication data for one communication unit may be, for example, data divided at a certain time, data up to a certain number of frames, data exceeding a certain data capacity, or the like. The data length of communication data in one communication unit may be variable or fixed. The communication data for one communication unit may have a variable number of frames, but may have a fixed number of frames. The number of frames of communication data in one communication unit may be, for example, a plurality, and the number of reference frames in the plurality of frames may be a plurality, but is particularly preferably one. However, for example, when communication data of one communication unit has a plurality of reference frames, as long as only one reference frame among the plurality of reference frames can be received, there is nothing for the period of one communication unit. There is no such thing as no video. For example, a reproducing apparatus comprising: a receiving unit that receives communication data of one communication unit transmitted by an in-vehicle device; and a reproducing unit that displays a video on a display unit based on the received communication data of one communication unit. It is good to have a configuration provided. According to such a reproducing apparatus, it is possible to reproduce an image based on communication data of one communication unit transmitted by the in-vehicle device. The user can view the reproduced video.

  (9-1) The in-vehicle device may be configured to repeat the creation of the communication data of the one communication unit by the creation unit and the transmission of the created communication data of the one communication unit by the wireless communication function. In this way, when the photographing unit continuously photographs, it is possible to transmit a continuous video. Creation of communication data for one communication unit and transmission of communication data by the wireless communication function may be performed as separate processes. For example, 10 pieces of communication data for one communication unit may be created, and after 10 pieces of communication data have been created, the communication data for the 10 communication units may be transmitted 10 times for each communication unit. However, if communication data for one communication unit is created, the created communication data for one communication unit may be transmitted. One communication unit is preferably created on the same basis for each repeating unit. For example, the reference may be based on the above-described time, the number of frames, the data capacity, and the like, and may be a constant quantity for each repeating unit. When communication data of one communication unit cannot be transmitted, the communication data of one communication unit may be retransmitted as a whole. However, the following (9-3) is preferable.

  (9-2) The in-vehicle device may be configured to store the frame that could not be transmitted among the communication data of one communication unit and transmit the frame that could not be transmitted. In this way, even if there is a frame that could not be transmitted, the frame that could not be transmitted can be transmitted later. For example, an identifier such as a serial number is given to a frame before transmission, for example, and if the transmission fails, the identifier of the frame that could not be transmitted is recorded, and the frame that could not be transmitted can be specified. good. In addition, if an identifier such as a serial number is assigned to communication data in one communication unit and transmission is not possible, the identifier of communication data that could not be transmitted and what number frame is the frame that could not be transmitted May be recorded to identify a frame that could not be transmitted. The identifier may be, for example, a date or time. Of a plurality of frames included in communication data of one communication unit, a frame next to a certain frame may be used as difference data from the previous reference frame. However, the following (9-3) is preferable.

  (9-3) The in-vehicle device has a configuration in which a frame next to a certain frame among the plurality of frames included in the communication data of one communication unit is set as a difference frame that is difference data from the previous frame. good. For example, when a certain frame is used as a reference frame, a frame subsequent to a certain frame is a difference frame with respect to the reference frame. For example, if a certain frame is a difference frame, the next frame after the certain frame is a difference frame with respect to a frame created by the difference frame. In this way, the amount of communication data can be reduced as compared with the case where all frames are set as reference frames. Also, the frame next to the difference frame may be a difference frame. In particular, since a frame included in communication data of one communication unit includes a reference frame as a certain frame, it is possible to independently reproduce a video of the period of the one communication unit and to reduce the data amount. When the in-vehicle device is a drive recorder that captures the outside of the vehicle while traveling, the entire frame changes compared to, for example, a fixed point camera that captures a place where the background change is poor. Rather than the difference data with the previous reference frame, the difference data with the previous frame is better. The reference frame may be at the head of communication data for one communication unit.

  (9-4) The in-vehicle device is an in-vehicle device including a photographing unit and a sound collecting unit, and includes a wireless communication function, a video photographed by the photographing unit, and a voice collected by the sound collecting unit. Creating means for creating communication data for one communication unit having a plurality of frames transmitted by the communication unit, wherein the communication data for one communication unit is a reference frame, audio data, 1 A configuration in which the difference frames indicating the difference from the frame before the frame are arranged in order is preferable.

  In this way, even when communication is interrupted in the middle of transmission of communication data for one communication unit, a still image based on at least the reference frame can be viewed at the transmission destination. Subsequently, if the voice data can be received, the voice can be heard. Subsequently, if a difference frame can be received, a moving image based on the difference frame can be viewed. The order of reception at the transmission destination is a still image, audio, and moving image, and when communication data is, for example, a picture of an accident situation, an overview of the accident can be first viewed from the still image. Subsequently, the situation of the accident can be known by voice. Then, you can know the details of the accident through a video. Even if communication is interrupted in the middle of audio data, at least the outline of the accident can be viewed at the receiver. It is preferable that the playback device further includes a voice playback function and can play back the voice that has been received in one communication unit of communication data. According to such a reproducing apparatus, it is possible to reproduce sound based on communication data of one communication unit transmitted by the in-vehicle device. The user can listen to the reproduced sound.

  (10) The in-vehicle device is an in-vehicle device including an imaging unit, and a switching function for switching a data writing destination based on a video captured by the imaging unit between a plurality of recording media, and a radio for transmitting data based on the video And when the data based on the video cannot be transmitted by the wireless communication function, from the recording medium storing the data based on the video that could not be transmitted during the period when the storage medium is not the write destination A configuration may be adopted in which data based on the video that could not be transmitted is read and transmitted by the wireless communication function.

  In this way, even when the wireless communication unit fails to transmit the video, it is possible to read and transmit the video that has failed to be transmitted from any one of the recording media that is not the writing destination. It may be difficult to simultaneously write and read data on the recording medium. For example, when data based on video is written to a recording medium for recording, data based on video stored in the storage medium and data stored in the storage medium based on video captured by the imaging unit May be overlapped with the period for reading out for transmission. By switching the writing destination between a plurality of storage media and creating a period in which the storage medium storing the data based on the video is not the writing destination, the data based on the video can be easily read. Three or more storage media may be used, but two is particularly preferable. Also, the data based on the video for recording and the data based on the video to be transmitted are different from each other, and the data amount may be different from each other. The amount of data based on the video to be transmitted is based on the video for recording. The amount of data is preferably smaller than the amount of data. When constantly writing to a recording medium for recording, it is preferable to write data based on video for recording by alternately switching between the two recording media. The data based on the video to be transmitted may be always written by alternately switching the two recording media, but the data based on the transmitted video may not be written on the recording medium. The recording medium on which data based on the video that could not be transmitted is preferably written on the recording medium on which data based on the video for recording is being written. Data based on the video that could not be transmitted by the wireless communication function may be one communication unit or may be a frame unit. For example, an identifier such as a serial number is assigned to a frame, for example, before transmission. If transmission is not possible, the identifier of the frame that could not be transmitted and the recording medium to be recorded can be recorded and transmitted. You may specify the storage medium which has memorize | stored the frame which did not exist. Also, a part of the storage area of the recording medium is divided as an area for recording data based on video that could not be transmitted in advance, and data based on video stored in that area of the storage medium that is not the write destination is read out. Also good.

  (10-1) The in-vehicle device is an in-vehicle device including an imaging unit, and includes a wireless communication function for transmitting data based on video, and when the data based on the video captured by the imaging unit is transmitted by the wireless communication function. The communication speed may be set to a speed that allows transmission in a time shorter than the time required to shoot data based on the video.

  If it does in this way, the vehicle equipment can transmit the data based on the saved image at a stretch. Data based on video is captured for a certain period, and data based on video for a certain period can be transmitted in a time shorter than the time required for the imaging. For example, when data is transmitted based on video for one communication unit, the data can be transmitted in a time shorter than the time taken to shoot one communication unit. Data based on the video that could not be transmitted can be transmitted in the remaining time. It can be transmitted in a time shorter than the actual time of the video. There will be a vacancy before the next shooting for one communication unit begins. Data based on video that could not be transmitted is read from a storage medium that records data based on video that could not be transmitted, and the transmission time can be secured by the wireless communication function. In particular, the configuration (10-2) exhibits an excellent effect. In addition, in the case of a configuration in which the power supply source is a battery as in (14), in the case where it is not as in (10-1), when the communication speed is slow, the power supply source becomes a battery. , It takes a long time to send data based on the video that could not be sent. In the configuration of (10-1), since the data based on the video that could not be transmitted is transmitted before the power supply source becomes a battery, the time for transmission during the period when the power supply source is a battery can be shortened or eliminated. it can.

  (10-2) The in-vehicle device is an in-vehicle device including a photographing unit, and transmits a data switching function and a switching function for switching a data writing destination based on a video photographed by the photographing unit among a plurality of recording media. A wireless communication function that writes video-based data to a storage medium, and a real-time transmission function that transmits video-based data in real time using the wireless communication function. If there is not, the configuration is such that the data based on the video that could not be transmitted is read from the recording medium storing the data based on the video that could not be transmitted and transmitted by the wireless communication function during the period when the storage medium is not the write destination. And good.

  In this way, when the data based on the video cannot be transmitted by the real-time transmission function, the storage medium storing the data based on the video that could not be transmitted is not the write destination almost simultaneously with the transmission in real time. During the period, data based on the video that could not be transmitted can be read, and data based on the video that could not be transmitted can be transmitted. In particular, it is preferable to always write data based on video for recording. As the data different from the data based on the video to be transmitted and the data based on the video to be transmitted, the data amount of the data based on the video for recording is larger than the data amount of the data based on the video to be transmitted, for example, It should be high-quality data.

  (11) A system including the present apparatus and an in-vehicle device, wherein the apparatus includes a communication unit that communicates with the in-vehicle device, and a control unit, and the control unit determines a power supply source for the in-vehicle device. When the vehicle is switched to the battery, a switching signal (hereinafter referred to as a battery switching signal) indicating that the power supply source has been switched to the battery is output by the communication means, and the in-vehicle device drives the outside of the vehicle based on the imaging conditions. It is a recorder, comprising equipment communication means for communicating with the apparatus, applying a first condition as a shooting condition during a first period when the power supply source is a vehicle, a second condition as a shooting condition when the power supply source is a battery, and a first condition as a shooting condition When the second condition that saves more power is applied and a switching signal (battery switching signal) is received, the imaging condition is preferably switched from the first condition to the second condition to continue the imaging.

  In this way, the amount of power supplied by the battery is reduced, so that the battery can last longer. Here, the shooting conditions are not conditions for starting shooting but conditions for shooting. Shooting conditions may include, for example, a frame rate, resolution, and the like, and power saving conditions may include reducing the frame rate and decreasing the resolution. When the configurations of (5), (6) and (11) are provided, each communication means and each control means may be realized so as to share one communication means and one control means. These communication means and control means may be used. In particular, the device may be any one of (1) to (6), and the vehicle-mounted device may be the vehicle-mounted device described in (7). The same applies to (13) to (15) described later.

  (12) A system including the present apparatus and an in-vehicle device, wherein the apparatus includes a communication unit that communicates with the in-vehicle device and a control unit, and the control unit includes a signal indicating a remaining battery level, and charge / discharge When the control unit switches the power supply source to the in-vehicle device from the vehicle to the battery, the communication unit outputs a switching signal (battery switching signal) indicating that the power supply source has been switched to the battery. A drive recorder for photographing outside the vehicle based on photographing conditions including a frame rate, and accepts device communication means for communicating with the apparatus, photographing means, a storage medium for storing images taken by the photographing means, and setting of photographing conditions A user interface, and upon receiving a signal indicating the remaining battery level and a switching signal (battery switching signal), the remaining battery level and the remaining capacity of the recording medium , Either one of the imaging time and the frame rate has been accepted, on the basis of, may be configured to determine the other one of the photographing time and frame rate.

  In this way, the in-vehicle device can determine either the shooting time or the frame rate by giving priority to either the shooting time or the frame rate. If the user sets a desired shooting time or frame rate, the in-vehicle device can be operated. When the configurations of (5), (6) and (12) are provided, each communication means and each control means may be realized so as to share one communication means and one control means. These communication means and control means may be used.

  (13) A system including the present apparatus and an in-vehicle device, the apparatus including a communication unit that communicates with the in-vehicle device, and a control unit, wherein the control unit is configured to supply a power supply source to the in-vehicle device. When switching from the vehicle to the battery, a switching signal (battery switching signal) indicating that the power supply source has been switched to the battery is output by the communication means, and the in-vehicle device is a drive recorder that images the outside of the vehicle based on the imaging conditions. And a positioning means for positioning the position of the vehicle, an apparatus communication means for communicating with the apparatus, and a storage means for storing the photographing condition set by the user in association with the position, and receives a switching signal (battery switching signal). When the current position is within a predetermined area of the position stored in the storage unit, the shooting condition associated with the position is determined as the current shooting condition. There.

  In this way, when the current position is within a predetermined radius of the position where the current position has been set in the past, the in-vehicle device sets the shooting condition stored in the storage unit as the current shooting condition. Can do. The user can operate the in-vehicle device without the trouble of setting many times. In addition, even if the current position does not coincide with the position stored in the storage unit, the in-vehicle device sets the imaging condition associated with the position as long as it is within a predetermined area of the stored position. The current shooting conditions can be used. For this reason, the same photographing conditions can be applied when the user parks freely in a parking lot having a predetermined site, for example. The predetermined area may be, for example, an arbitrary shape centered on the latitude / longitude specifying the position, particularly a circle having a predetermined radius. When the configurations of (5), (6) and (11) are provided, each communication means and each control means may be realized so as to share one communication means and one control means. These communication means and control means may be used.

  (14) A system including the present apparatus and an in-vehicle device, the apparatus including a communication unit that communicates with the in-vehicle device, and a control unit, wherein the control unit is configured to supply a power supply source to the in-vehicle device. When the vehicle is switched to the battery, a switching signal (battery switching signal) indicating that the power supply source is switched to the battery is output by the communication means, and the in-vehicle device is in the shooting condition during the first period in which the power supply source is the vehicle. A drive recorder that images the outside of the vehicle based on the apparatus, a device communication unit that communicates with the apparatus, a photographing unit, a recording unit that records an image captured by the photographing unit, and a transmission unit that transmits an image via a network. In addition, when receiving a switching signal (battery switching signal), an image that could not be transmitted in the first period is preferably transmitted in a period in which the power supply source is a battery.

  In this way, even if the record cannot be transmitted in the first period, the record can be transmitted reliably. For example, the transmission destination may be a database that can be browsed by an administrator who manages the vehicle. As the network, for example, a network for mobile terminals may be used. The first period often corresponds to traveling, and during traveling, there may be a period in which communication is interrupted and transmission is not possible due to, for example, base station switching or traveling in an area with a low communication speed. . In addition, the second period often corresponds to the parking period, and during the parking period, the vehicle is less likely to move, so the travel record can be transmitted reliably. When the configurations of (5), (6) and (14) are provided, each communication means and each control means may be realized so as to share one communication means and one control means. These communication means and control means may be used.

  (15) A system including the present apparatus and an in-vehicle device, wherein the apparatus includes a communication unit that communicates with the in-vehicle device, and a control unit, and the control unit determines a power supply source for the in-vehicle device. When the vehicle is switched to the battery, a switching signal (battery switching signal) indicating that the power supply source is switched to the battery is output by the communication means, and the in-vehicle device is in the shooting condition during the first period in which the power supply source is the vehicle. A drive recorder for photographing the outside of the vehicle based on the imaging device, comprising: photographing means; recording means for recording an image photographed by the photographing means; and transmitting means for transmitting the image via a network. When the transmission speed is lower than the reference value when receiving the switching signal (battery switching signal) and transmitting the image at a lower bit rate, the image is transmitted at a higher bit rate than the first period. May that.

  In this way, since the amount of data per unit time can be reduced in the first period, the image time relative to the transmission time can be lengthened. As a method for lowering the bit rate, for example, it is preferable to reduce the image quality. The network may be a network for mobile terminals, a wireless LAN, or the like. Further, as a case where the power supply source is switched to the battery, for example, it is preferable to park. For example, when the parking lot can use a high-speed wireless LAN such as Wi-Fi (registered trademark), it can be expected that the data can be transmitted in a short time without reducing the data amount per unit time of the traveling image. A traveling image with good image quality can be transmitted. When the configurations of (5), (6) and (15) are provided, each communication means and each control means may be realized so as to share one communication means and one control means. These communication means and control means may be used.

  (16) A system including the present apparatus and an in-vehicle device, wherein the apparatus includes a communication unit that communicates with the in-vehicle device, and a control unit, and the control unit determines a power supply source for the in-vehicle device. When the vehicle is switched to the battery, a switching signal indicating that the power supply source is switched to the battery is output by the communication means, and the in-vehicle device captures the outside of the vehicle based on the shooting conditions during the first period when the power supply source is the vehicle. A creation means for creating communication data for one communication unit having a plurality of frames, which is transmitted by the wireless communication function based on the video imaged by the photographing means, the photographing means, the wireless communication function, And a reference frame that is a frame that can be reproduced independently in at least one of the plurality of frames included in the communication data of one communication unit.

  In this way, as long as it is possible to receive only a reference frame of communication data for one communication unit, a video can be reproduced independently.

  (17) A system including the present apparatus and an in-vehicle device, the apparatus including a communication unit that communicates with the in-vehicle device, and a control unit, and the control unit determines a power supply source for the in-vehicle device. When the vehicle is switched to the battery, a switching signal indicating that the power supply source is switched to the battery is output by the communication means, and the in-vehicle device captures the outside of the vehicle based on the shooting conditions during the first period when the power supply source is the vehicle. A drive recorder comprising: a photographing unit; a switching function for switching a data writing destination based on video captured by the photographing unit between a plurality of recording media; and a wireless communication function for transmitting data based on the video; When data based on video cannot be transmitted by the wireless communication function, from the recording medium storing the data based on video that could not be transmitted, the period when the storage medium is not the write destination Reads the data based on the video which could not be the transmission, it may be configured to transmit by the wireless communication function.

  In this way, even when the wireless communication unit fails to transmit the video, the video that has failed to be transmitted can be read from any recording medium that is not the storage destination and transmitted.

  Note that (1) to (17) may be arbitrarily selected and combined, and it is particularly preferable to combine (2) to (17) after having (1). In addition, elements (1) to (17) may be arbitrarily selected and combined.

  According to the apparatus etc. which concern on this application, the electric power feeding etc. to vehicle equipment can be performed favorably.

It is a block diagram showing the whole structure of embodiment. It is a block diagram showing the electric constitution of a monitoring battery. It is a timing chart figure which shows a response | compatibility with the output of an ACC power supply and a monitoring battery. It is a figure (1/4) showing the screen transition in surveillance video recording. It is a figure (2/4) showing the screen transition in surveillance video recording. It is a figure (3/4) showing the screen transition in surveillance video recording. It is a figure (4/4) showing the screen transition in surveillance video recording. It is a figure (1/6) showing the screen transition in a setting. It is a figure (2/6) showing the screen transition in a setting. It is a figure (3/6) showing the screen transition in a setting. It is a figure (4/6) showing the screen transition in a setting. It is a figure explaining “OFF” “ON” of “overwrite” in setting. It is a figure (5/6) showing the screen transition in a setting. It is a figure (6/6) showing the screen transition in a setting. It is a figure explaining the area registration in a setting. It is a figure explaining transfer and SD card writing of (method 1) in parking monitoring. It is a figure explaining transfer and SD card writing of (method 2) in parking monitoring. It is a figure explaining transfer and SD card writing of (method 3) in parking monitoring. It is a functional block diagram of a drive recorder related to recording data transfer during continuous recording. It is a figure explaining the structure of communication data. It is a flowchart which shows the processing content of a communication process. It is a figure explaining the recording data transfer during the continuous recording when the communication impossibility period arises. It is a figure explaining the recording and data transfer setting of an SD card. It is a front view of the monitoring battery which concerns on the modification 1 shown with an input code and an output code. It is a figure explaining the setting of the dip switch of the monitoring battery which concerns on the modification 1. FIG. It is a figure explaining LED of the monitoring battery which concerns on the modification 1. FIG. It is a perspective view of the monitoring battery which concerns on the modification 2. FIG. It is a top view of the monitoring battery which concerns on the modification 2 shown with an input code and an output code. FIG. 10 is a plan view of a monitoring battery according to Modification 2. It is a figure explaining the setting of the detection voltage of the monitoring battery which concerns on the modification 2. FIG. It is a figure explaining the setting of the off timer of the monitoring battery which concerns on the modification 2. FIG.

<Overall configuration>
An overall configuration of a system 1 according to the embodiment will be described with reference to FIG.
The system 1 is installed in a vehicle. The system 1 is a system retrofitted to a vehicle, and includes a monitoring battery 3, a drive recorder 4, a power cable 11, a cable 12, and the like. When the monitoring battery 3 is supplied with power from the ACC power supply (FIG. 2), the monitoring battery 3 supplies power to the drive recorder 4 using the ACC power supply as a power supply source and charges the internal battery 34 (FIG. 2). Further, when the power supply from the ACC power supply is cut off, the monitoring battery 3 switches the power supply source to the drive recorder 4 from the vehicle to the internal battery 34 and continues the power supply to the drive recorder 4. The monitoring battery 3 includes an input connector 3a and an input / output connector 3b. The drive recorder 4 includes an input / output connector 4a and a display 41. The power cable 11 has a cigar plug at one end and an output terminal 11a at the other end. The cable 12 includes a first terminal 12a at one end and a second terminal 12b at the other end. A cigar plug included in the power cable 11 is connected to a cigar socket of the vehicle, and an output terminal 11 a of the power cable 11 is connected to an input connector 3 a of the monitoring battery 3. Thereby, the monitoring battery 3 can receive power supply from the ACC power source. The input / output connector 3 b of the monitoring battery 3 is connected to the first terminal 12 a of the cable 12, and the second terminal 12 b of the cable 12 is connected to the input / output connector 4 a of the drive recorder 4. Thereby, the monitoring battery 3 can supply power to the drive recorder 4 and can serially communicate with the drive recorder 4.

<Configuration of monitoring battery>
Next, the electrical configuration of the monitoring battery 3 will be described with reference to FIG. The monitoring battery 3 includes a charge / discharge control unit 31, a DC-DC converter 32, a CPU 33, an internal battery 34, an indicator 35, a dip switch DIPSW 36, and the like. The charge / discharge control unit 31 controls the charging of the internal battery 34 and the power supply to the drive recorder 4. The internal battery 34 is a secondary battery, and is specifically realized by a nickel hydride rechargeable battery. The DC-DC converter 32 converts the voltage of 12V or 24V fed from the ACC power supply via the charge / discharge control unit 31 to a voltage of 5V and outputs the voltage. The CPU 33 controls the charge / discharge control unit 31, the indicator 35, and the like. The CPU 33 communicates with the drive recorder 4 connected via the cable 12. The indicator 35 includes a lamp for notifying that it is in an operating state, a lamp for displaying the remaining battery level of the internal battery 34, and the like. The lamp is realized by an LED. The dip switch DIPSW 36 includes three switches. In the following description and drawings, the internal battery 34 may be described as a built-in battery.

  The charge / discharge control unit 31 is supplied with power from the internal battery 34. The charge / discharge control unit 31 controls the power supply path so that power is supplied from the ACC power source to the internal battery 34 and the DC-DC converter 32 while power is supplied from the ACC power source. As a result, the internal battery 34 is charged, and the DC-DC converter 32 supplies the voltage-converted power to the drive recorder 4. The charging / discharging control unit 31 determines whether the internal battery 34 is charged or discharged by determining ON / OFF of the ACC power source. When it is determined that the ACC power source is ON, the charge / discharge control unit 31 performs control so that power is supplied from the ACC power source to the internal battery 34 and the DC-DC converter 32. When the charge / discharge control unit 31 determines that the ACC power supply is OFF, the charge / discharge control unit 31 discharges the internal battery 34 and controls the power supply from the internal battery 34 to the DC-DC converter 32.

  Next, the operation of the monitoring battery 3 will be described with reference to FIG. The monitoring battery 3 outputs power to the drive recorder 4 using the ACC power source while the ACC power source is ON. When the supply of the ACC power supply is interrupted, electric power is output to the drive recorder 4 using the internal battery 34 for a specified time after the interruption. When the specified time has elapsed, the power output is turned off. When the supply of the ACC power is resumed, the power is output to the drive recorder 4 again using the ACC power. Thereby, the drive recorder 4 can continue operation | movement for the regulation time after the ACC power supply is interrupted | blocked. The specified time is set by serial communication from the drive recorder 4. When the drive recorder 4 receives a battery switching signal (to be described later) from the monitoring battery 3, it transmits a signal for instructing a specified time. The CPU 33 sets the set value of the specified time included in the signal for instructing the received specified time as the specified time.

  When a drive recorder that does not have a communication function is connected to the monitoring battery 3, the CPU 33 sets the time set by the DIP switch DIPSW 36 as the specified time. When the power is turned on, the drive recorder 4 having a communication function transmits a signal asking about the remaining amount of the internal battery 34. If the CPU 33 does not receive a signal asking about the remaining amount of the internal battery 34, the CPU 33 determines that the drive recorder is not connected. When the CPU 33 determines that the drive recorder is not connected, the CPU 33 refers to the setting of the DIP switch DIPSW 36. The dip switch DIPSW 36 can hold a set value for a total of eight specified times in a binary manner by a combination of ON / OFF of three switches. The set values for the specified time are specifically 30 minutes, 1 hour, 2 hours, 4 hours, 8 hours, 16 hours, 32 hours, and 64 hours. When connecting a drive recorder that does not have a communication function, the user refers to the instruction manual attached to the monitoring battery 3 and turns each switch ON or OFF so as to correspond to a desired time.

  When the supply of the ACC power is cut off, the monitoring battery 3 switches the power supply source to the internal battery 34 and supplies power to the drive recorder 4. Since the drive recorder 4 continues to be supplied with power before and after the switching, the drive recorder 4 cannot determine whether the power supply source is the ACC power source or the internal battery 34. For this reason, when the power supply source is switched to the internal battery 34, the CPU 33 transmits a battery switching signal to the drive recorder 4. When the ACC power source is turned on after the specified time has elapsed and the monitoring battery 3 turns off the output, the drive recorder 4 determines that the ACC power source has been turned on because the power supply that has been stopped is resumed. Can do. On the other hand, when the ACC power supply is turned on within the specified time, the drive recorder 4 continues to be supplied with power, so it cannot be determined whether the power supply source is the ACC power supply or the internal battery 34. For this reason, when the ACC power source is turned on within the specified time, the CPU 33 transmits a vehicle switching signal notifying that the power supply source has been switched to the ACC power source. Thereby, the drive recorder 4 can recognize that the ACC power source is turned on and the power supply source is switched to the ACC power source. As will be described later, the drive recorder 4 switches the operation mode in response to the input of the battery switching signal and the vehicle switching signal. The monitoring battery 3 transmits a signal indicating the remaining battery capacity of the internal battery 34 every 1 s. Thereby, the drive recorder 4 can know the remaining battery level of the internal battery 34.

  Next, the shape of the monitoring battery 3 will be described. The monitoring battery 3 includes a mechanism case. The mechanism case is made of heat-resistant resin and is fixed to the vehicle with a tie wrap or double-sided tape. The mechanism case is about the size of a lunch box for elementary school students, and is installed with the widest side down under the seat in the front row of the vehicle. Since the monitoring battery 3 is installed under a seat where direct sunlight is blocked, the temperature of the monitoring battery 3 can be made difficult to increase. Since the monitoring battery 3 is less likely to increase in temperature, the internal battery 34 is less likely to be restricted in charging and discharging as the temperature rises. As a result, power supply from the monitoring battery 3 is less likely to be stopped, and operation stop of the drive recorder 4 is less likely to occur. Further, since the monitoring battery 3 is configured to be installed under the seat, the size of the internal battery 34 can be made large enough to fit under the seat. Thereby, the capacity | capacitance of the internal battery 34 can be enlarged. For example, as with the drive recorder 4, if the monitoring battery is attached to the windshield, it may fall if it is heavy, but if it is under the seat, there is no risk of dropping. Moreover, since the monitoring battery 3 is installed under the seat, it does not press the living space of the vehicle, and there is no possibility that it becomes an obstacle when driving and getting on and off.

  The drive recorder 4 is attached to the windshield, and is away from the monitoring battery 3 installed under the seat. Since the length of the power cable 11 is about 4 m, the user can connect the monitoring battery 3 and the drive recorder 4 that are separated from each other.

<Configuration of drive recorder>
Next, the drive recorder 4 will be described. The drive recorder 4 is installed by being attached to the vehicle interior side of the windshield, and has a recording function for photographing the front of the vehicle through the windshield and recording it on an SD card. Further, the drive recorder 4 has a communication function for communicating with the monitoring battery 3 in addition to the recording function of a general drive recorder. The drive recorder 4 includes a display 41 (FIG. 1). The drive recorder 4 includes a control unit, a GPS sensor, a G sensor, a camera, a microphone, an OBD connection cable, an SD card interface, operation buttons, a display lamp, a speaker, and the like (not shown). The display 41 is a liquid crystal display including a backlight and capable of full color display, and displays an image according to the control of the control unit. The GPS sensor measures the position of the drive recorder 4 and outputs the vehicle position as position information to the control unit. The G sensor measures acceleration and outputs the measured acceleration to the control unit. The camera captures images and outputs the captured image data to the control unit. The microphone collects sound and outputs the collected sound data to the control unit. The OBD connection cable is a cable that can be connected to an OBD-II connector mounted on a vehicle. A control part acquires the vehicle information which is the self-failure diagnosis which ECU mounted in a vehicle performs via an OBD connection cable. The SD card interface includes an SD card insertion slot. When the SD card is inserted into the SD card insertion slot, the SD card interface notifies that the SD card has been inserted. Further, according to the control of the control unit, the information recorded on the SD card is read and output to the control unit. Also, information such as image data output from the control unit is written to the SD card.

  There are a plurality of operation buttons, which are physical buttons provided on the mechanism case of the drive recorder 4. For example, when the operation button is pressed by the user, information indicating that the operation button has been pressed is output to the control unit. The operation buttons are “cursor (up) / REC” button, “OK” button, “cursor (down) / one-touch recording” button, “SD card format” button, “MENU / MUTEonoff” button, “mode switching” button, Consists of a “power” button and the like. In the following, the “cursor (up) / REC” button, the “cursor (down) / one-touch recording” button, the “SD card format” button, and the “MENU / MUTEonoff” button are respectively referred to as “cursor (up)” or “ It may be described as “REC” button or “up” button, “cursor (down)” button or “down” button, “SD” button, “MENU” button. Furthermore, “button” may be described as “key”. The display lamp is realized by an LED, and is turned on and off under the control of the control unit. The display lamp includes a power lamp that is turned on when the power is turned on, a recording lamp that is turned on during recording, and the like. The speaker emits sound according to the control of the control unit.

  The control unit includes a CPU, a ROM, a RAM, a nonvolatile storage unit, and the like. The CPU controls each unit by executing various programs stored in the ROM. Here, each unit includes the display 41, a GPS sensor, a G sensor, a camera, an SD card interface, operation buttons, a display lamp, a speaker, and the like. The ROM stores a program and data necessary for executing the program. The RAM is used as a main storage device for the CPU to execute various processes. The RAM temporarily stores captured image data. The ROM stores two image data codecs. There are a program for encoding image data to be transmitted via the Internet, a program for encoding image data to be stored in an SD card, and the like. Details of the codec and the like will be described later. The nonvolatile storage unit stores, for example, setting values set by the user. The CPU communicates with the monitoring battery 3 connected via the cable 12.

  Further, the drive recorder 4 includes a LAN interface (not shown) that can be connected to a wireless LAN (Local Area Network) that conforms to the Wi-Fi (registered trademark) standard, and a mobile phone that conforms to LTE (Long Term Evolution) and 4G (Generation). And a mobile communication interface 52 (FIG. 19) that can be connected to a network for a terminal. Thereby, the drive recorder 4 can be connected to the Internet by a wireless LAN via a router capable of Wi-Fi connection. Further, it can be connected to the Internet via a base station. The LAN interface may be a wireless LAN communication device, and the mobile communication interface may be a communication device such as LTE or 4G. In areas where both wireless LAN connection and base station connection are possible, the wireless LAN connection is preferentially connected.

  Since the drive recorder 4 includes a control unit, and the control unit processes image data, the heat generation amount is large. For this reason, if the monitoring battery 3 is near the drive recorder 4, it is easily affected by heat generation. As described above, in the system 1, the drive recorder 4 is installed on the windshield, and the monitoring battery 3 is installed under the seat. Thereby, the monitoring battery 3 can be made less susceptible to the heat generated by the drive recorder 4. Since the monitoring battery 3 is less likely to increase in temperature, the internal battery 34 is less likely to be restricted in charging and discharging as the temperature rises. As a result, power supply from the monitoring battery 3 is less likely to be stopped, and operation stop of the drive recorder 4 is less likely to occur.

  Here, the effect in the case of taking the configuration of the system 1 as compared with the conventional configuration will be described. For example, there is a drive recorder including a battery such as a lithium ion polymer battery (LiPo). The drive recorder having this configuration can operate, for example, for about 20 to 30 minutes after the ACC power is turned off. However, the drive recorder is usually installed so that the outside of the vehicle can be photographed through the windshield, and it is necessary to install it in the sun, so it is exposed to high temperatures such as midsummer and the lithium ion polymer battery cannot be charged. was there. For example, in summer, it was difficult to charge in the daytime, and it was often possible to charge just a little at the end of the night. Further, since the drive recorder is attached to the windshield, the size and weight are limited. There is also a separate type drive recorder in which a camera unit including a camera and a main body including a CPU and a battery are separated. In this case, heat from the CPU or the like may be trapped in the case of the main body, and the temperature of the battery in the same case as the main body may be higher than the temperature of a place where the sun does not hit the vehicle. It was. In this regard, in the system 1, the drive recorder 4 is separate from the monitoring battery 3, and therefore can be less affected by the heat generated by the CPU provided in the drive recorder 4. Moreover, since the monitoring battery 3 is installed under the seat, it can be made less susceptible to the temperature rise caused by the sun.

  In addition, the internal battery 34 is a nickel metal hydride rechargeable battery, and the upper limit temperature that can be charged is about 70 ° C. higher than that of a lithium ion polymer battery having a charging temperature of about 0 to 45 ° C. can do. The monitoring battery 3 can be powered for about 10 hours after the ACC power is turned off, depending on operating conditions such as the environment. It is also possible to directly connect the drive recorder to a vehicle battery provided in the vehicle. However, in this configuration, it is necessary to leave the remaining amount for turning the vehicle cell motor in the vehicle battery, and it is necessary to grasp the remaining amount, but there is a problem that it is difficult to accurately grasp the remaining amount. is there. As a method of grasping the remaining amount of the vehicle battery, there is a method of drawing current and measuring the voltage at this time. Since the voltage decreases as the remaining amount of the vehicle battery decreases, for example, when the voltage falls below a predetermined value, it can be determined that the remaining amount of the vehicle battery is decreased. However, the current consumption of the drive recorder is less than 1 A, for example, and is smaller than the current consumption when a cell motor of about several to several tens of amps is turned, for example. It is difficult to accurately grasp the amount. In this regard, in the system 1, when the ACC power is turned off, the monitoring battery 3 uses the internal battery 34 to supply power to the drive recorder 4, so that the vehicle battery can be prevented from rising.

<Continuous recording mode, surveillance recording mode, event recording>
Next, the recording function of the drive recorder 4 will be described. The drive recorder 4 operates according to the operation mode. The operation mode includes a constant monitoring mode and a monitoring recording mode. The drive recorder 4 records in the constant recording mode and the monitoring recording mode. In the constant recording mode and the monitoring recording mode, event recording is performed according to a predetermined trigger. There are two predetermined triggers, triggering when the control unit determines that an event has occurred based on information from the G sensor, and triggering when the “cursor (down)” button is pressed by the user This is the case. Specifically, the control unit determines that an event has occurred when the acceleration measured by the G sensor exceeds a threshold value. As a result, the drive recorder 4 can perform event recording when the vehicle receives an impact due to an accident, for example. The case where the “cursor (down)” button is pressed is, for example, a case where a user who feels danger presses the “cursor (down)” button. The drive recorder 4 records about 10 to 30 seconds before and after the generated event as event recording. The recording performed by the drive recorder 4 in the constant recording mode and the monitoring recording mode is referred to as a constant recording and a monitoring recording, respectively. In addition, event recording that is started when the control unit determines that an event has occurred based on information from the G sensor may be referred to as G sensor event recording or G sensor event recording. Event recording that starts when the “cursor (down)” button is pressed may be referred to as one-touch recording or one-touch event recording.

  When the power is turned on and the continuous recording is possible, the drive recorder 4 operates in the continuous recording mode and starts the continuous recording. When the battery switching signal is received from the monitoring battery 3 in the constant recording mode, the control unit determines whether to shift to the monitoring recording mode or to turn off the drive recorder 4 based on the setting. After the transition to the monitoring recording mode, if monitoring recording is possible, the drive recorder 4 starts monitoring recording. In addition, when the vehicle switching signal is received from the monitoring battery 3 and continuous recording is possible, the drive recorder 4 shifts from the monitoring recording mode to the continuous recording mode and starts continuous recording.

  When the monitoring battery 3 is supplied with power from the ACC power source, the vehicle often drives the engine and further travels. As the case where the monitoring battery 3 is not supplied with power from the ACC power source, the vehicle often stops the engine and is parked in many cases. The drive recorder 4 operates in the constant recording mode when the monitoring battery 3 is supplied with power from the ACC power source. The drive recorder 4 operates in the monitor recording mode when the monitor battery 3 is not supplied with power from the ACC power source. The drive recorder 4 changes the operation mode between a state where the vehicle is traveling and a state where the vehicle is parked by switching the operation mode depending on whether or not the monitoring battery 3 is supplied with power from the ACC power source. In the following description and drawings, engine ON / OFF may be described instead of ACC power ON / OFF.

  The drive recorder 4 performs recording according to recording conditions corresponding to each of constant recording, monitoring recording, and event recording. Here, the recording condition is a setting relating to the image data to be stored, and specifically includes setting items such as “number of recorded frames”, “resolution”, and “recording time”. The number of recorded frames in event recording is as high as about 30 fps, and the “resolution” is as high as about 1080 pHD. Thereby, the situation of the accident is recorded in detail. In the following description and drawings, “number of recorded frames” may be described as “frame rate”.

<Monitoring recording mode>
Next, the monitoring recording mode will be described. As described above, when the battery switching signal is received from the monitoring battery 3 in the constant recording mode, the control unit determines whether to shift to the monitoring recording mode or to turn off the drive recorder 4 based on the setting. The setting here is a setting related to the monitoring recording mode. Setting items relating to the monitoring recording mode include “recording mode”, “my area”, “my cancel area”, and the like. The drive recorder 4 provides a plurality of options for each of “recording mode”, “my area”, and “my cancel area”. The user can set any of the options in advance on a setting screen described later. The “setting” will be described after the monitoring recording mode.

  There are three options for “recording mode”: “automatic”, “manual”, and “OFF”. When the “recording mode” is “automatic”, the drive recorder 4 automatically performs monitoring recording when the ACC power is turned off. Here, “automatic” refers to operation regardless of input, such as whether or not an operation button has been operated by the user. Further, when the drive recorder 4 receives the battery switching signal from the monitoring battery 3, it determines that the ACC power source is turned off. The same applies to the following description. When the “recording mode” is “manual”, when the ACC power is turned off, a POPUP display is displayed on the display 41 to confirm to the user whether to perform monitoring recording. When “recording mode” is “OFF”, monitoring recording is not performed. Since “manual” can be set, the user can set the position of the vehicle, the remaining amount of the internal battery 34 (hereinafter referred to as “remaining battery amount”), and the remaining amount of the SD card (hereinafter referred to as “SD card remaining amount”). The recording conditions can be set by themselves. As will be described later, the setting of “My Area” and “My Cancel Area” has priority over the setting of “Recording Mode”. In the following description and drawings, “recording mode” may be described as “monitoring recording setting”.

  The “my area” is an area where the monitoring recording is automatically performed even when the “recording mode” is set to “manual”. The “my cancel area” is an area in which monitoring recording is not automatically performed even when “recording mode” is set to “automatic”. “My area” and “My cancel area” can be registered in advance in “Settings”. For example, if a user registers a parking lot at home without security in “My Area”, the user can automatically perform monitoring recording when parking at the parking lot at home. In addition, for example, if the user registers a parking lot at a work place with security in the “my cancel area”, the user can not perform monitoring recording at the parking place at the work place. In the following description and drawings, “My Area” and “My Cancel Area” may be referred to as “Monitoring My Area” and “Monitoring My Cancel Area”, respectively.

  The control unit determines to shift to the monitoring recording mode in the case of the following setting. The first is a case where “monitoring recording setting” is “automatic” and the vehicle position is outside the areas of “monitoring my area” and “monitoring my cancel area”. The second is a case where “monitoring recording setting” is “manual” and the vehicle position is within the “monitoring my area” area. The third one is in the area where “monitoring recording setting” is “automatic” and the vehicle position is “monitoring my cancel area”, and “REC” is displayed within 30 s after the screen Sa1 (FIG. 4) is displayed. This is when the button is pressed. The fourth is that “monitoring recording setting” is “manual” and outside the “monitoring my area” area, and the “REC” button is pressed within 30 s after the display of the screen Sa2 (FIG. 4). This is the case.

  When “monitoring recording setting” is set to “manual”, the drive recorder 4 displays the screen Sa2 except when the vehicle position is in the “monitoring my area” area, and displays “REC” to the user. ”Button is urged to operate, and when the“ REC ”button is pressed, monitoring recording is started. When “monitoring recording setting” is set to “automatic”, the drive recorder 4 does not wait for user operation unless the vehicle position is in the “monitoring my cancel area” area. To start. By registering the parking position in the “monitoring my area” in advance before parking, the user can automatically start monitoring recording on the drive recorder 4 when parking at the parking position. When a user parks a parking position that does not require monitoring recording before parking in the “monitoring my cancel area” in advance, and parks at a parking position that does not require monitoring recording, the drive recorder 4 automatically starts monitoring recording. Can be canceled.

  The control unit determines to turn off the power of the drive recorder 4 in the case of the following setting. The first one is in the area where “monitoring recording setting” is “automatic” and the vehicle position is “monitoring my cancel area”, and the “REC” button is pressed after the screen Sa1 (FIG. 4) is displayed. This is a case where 30 s has passed. Second, “monitoring recording setting” is “manual” and the vehicle position is outside the “monitoring my area” area, and the “REC” button is pressed after the screen Sa2 (FIG. 4) is displayed. This is a case where 30 seconds have elapsed.

  Next, the operation of the drive recorder 4 after receiving the battery switching signal in the constant recording mode will be described using FIGS. 4 to 7 using a display screen displayed on the display 41. FIG. “Monitoring recording” in FIG. 4 indicates that the battery switching signal is received in the constant recording mode.

  When the “monitoring recording setting” is “automatic” and the vehicle position is within the “my cancel area”, the control unit displays the screen Sa1. On the screen Sa1, a message of “<in the monitoring my cancel area> cursor (up) / REC button: start of monitoring recording, power off in XX seconds” is displayed with white characters on a red background. If the “REC” button is pressed before 30 seconds elapses, the monitor recording mode is entered. Further, when the “monitoring recording setting” is “manual” and the vehicle position is in the “monitoring my area” area, the mode is shifted to the monitoring recording mode. Further, when the “monitoring recording setting” is “automatic” and the vehicle position is outside the areas of “monitoring my area” and “monitoring my cancel area”, the mode shifts to the monitoring recording mode. When “monitoring recording setting” is “manual” and the vehicle position is outside the areas of “monitoring my cancel area” and “monitoring my area”, the screen Sa2 is displayed. On the screen Sa2, a message “cursor (up) / REC button: start of monitoring recording, power off in XX seconds” is displayed in white letters on a red background. If the “REC” button is pressed by the user within 30 seconds, the monitor recording mode is entered. When “monitoring recording setting” is “OFF”, the power is turned off after the screen Sa3 which is an ending screen is displayed. If the “REC” button is not pressed within 30 s after displaying the screen Sa1 and the screen Sa2, no operation time-out occurs, and the screen Sa3 is displayed, and then the power is turned off.

  When the GPS sensor cannot acquire the position information, the screen Sa2 is displayed as in the case where “monitoring recording setting” is “manual” and outside the “monitoring my area” area. When the “REC” button is pressed within 30 s, the monitor recording mode is entered.

  Next, the control unit determines whether or not the remaining amount of the SD card is sufficient for “setting” of the recording condition in the monitoring recording mode. When the control unit determines that the remaining amount of the SD card is sufficient, the control recording is started. The recording conditions in the monitoring recording mode include setting items such as “recording time”, “resolution”, and “number of recorded frames”. The control unit records the image data on the SD card. For this reason, when the remaining amount of the SD card is not sufficient, the recording may not be performed as set. Therefore, the control unit determines whether or not the SD card remaining amount is sufficient for the setting based on the recording condition setting and the SD card remaining amount before executing the monitoring recording. Specifically, the data amount per 1 s is calculated by multiplying the data amount corresponding to “resolution” by the “number of recorded frames”. The total amount of data obtained by multiplying the calculated data amount per 1s by “recording time” is calculated, and when the total amount of data is equal to or less than the remaining capacity of the SD card, it is determined that recording can be performed according to the setting. A table of “resolution” vs. “data amount” is recorded in the ROM in advance. The control unit reads out and calculates the data amount corresponding to the corresponding “resolution” with reference to the table. “SD card: OK” shown in FIG. 5 indicates a case where the control unit determines that the remaining amount of the SD card is sufficient. “SD card: NG” indicates a case where the control unit determines that the remaining amount of the SD card is not sufficient.

  Further, the control unit determines whether or not the remaining battery capacity is sufficient for the “setting” of the recording condition in the monitoring recording mode. In the recording monitoring mode, the drive recorder 4 operates using power supplied from the internal battery 34 of the monitoring battery 3 as a power source. For this reason, when the remaining battery level is not sufficient, there are cases where recording cannot be performed as set. Therefore, the control unit determines whether or not the remaining battery capacity is sufficient for the “recording time”. The monitoring battery 3 transmits a signal indicating the remaining battery capacity of the internal battery 34 to the drive recorder 4. The signal indicating the remaining battery level of the internal battery 34 is a signal indicating information on a numerical value indicating the remaining battery level as a percentage and information on the type of the internal battery 34. Here, the model of the internal battery 34 is a capacity of a battery such as 500 mAh or 10,000 mAh, for example. The control unit calculates the remaining capacity of the internal battery 34 by multiplying the model of the internal battery 34 by a numerical value indicating the remaining battery level as a percentage. The “usable time” is calculated by dividing the calculated remaining capacity of the internal battery 34 by the current consumption stored in the ROM in advance. When the “usable time” is equal to or longer than the recording time, it is determined that the remaining battery level is sufficient. “External battery level: OK” shown in FIG. 5 indicates a case where the control unit determines that the battery level is sufficient. “External battery level: NG” indicates a case where the control unit determines that the battery level is not sufficient.

  When recording on the SD card, it is possible to overwrite the already stored data. The drive recorder 4 is configured to be able to set whether or not to overwrite in “Setting”. Specifically, the setting item has “monitoring recording overwrite”, and either “ON” or “OFF” can be selected. Further, the SD card is divided into four folders in advance: “always recording”, “always event recording”, “monitoring recording”, and “monitoring event recording”. As for overwriting, there are setting items such as “event recording overwriting” in addition to “monitoring recording overwriting”, and the configuration can be set in the same manner as “monitoring recording overwriting”. Note that “normal event recording” refers to event recording in the constant recording mode. Similarly, “event recording during monitoring” refers to event recording in the monitoring recording mode. Further, in the following description and figures, “supervised recording overwrite” may be described as “previous recording overwrite”. “Last recording overwrite: ON” shown in FIG. 5 indicates a case where “monitoring recording overwrite” is set to “ON”. “Last recording overwrite: OFF” indicates a case where “monitoring recording overwrite” is set to “OFF”.

  When the control unit determines that the SD card remaining amount and the battery remaining amount are sufficient and “monitoring recording overwrite” is set to “ON” (“SD card remaining amount: OK” “external battery” in FIG. The remaining amount: OK ”and“ previous recording overwrite: ON ”), the control unit determines that the monitoring recording can be executed according to“ setting ”, and displays the screen Sa4. On the screen Sa4, a message “Monitoring recording starts, monitoring recording time: XX minutes, external battery level:” is displayed. Also, an icon for displaying the remaining battery level is displayed to the right of “external battery level:”. The icon that displays the remaining battery level is an icon that displays the remaining level in stages on the outer shape of the battery. The control unit displays the calculated “usable time” to the right of “monitoring recording time:”. Moreover, based on the percentage of the battery remaining amount transmitted from the monitoring battery 3, it is displayed as an icon. Next, after 3 minutes have elapsed, the screen Sa8 is displayed.

  Further, when the control unit determines that the SD card remaining capacity is sufficient, and the control unit determines that the battery remaining capacity is not sufficient, and “monitoring recording overwrite” is set to “ON” (FIG. 5) “SD card remaining amount: OK”, “external battery remaining amount: NG”, “previous recording overwrite: ON”), the control unit is low in battery power and cannot perform the set “recording time” monitoring recording Judgment is made and the screen Sa5 is displayed. On the screen Sa5, a message “Monitoring recording is started, the remaining battery level is insufficient, monitoring may end in the middle, and the remaining battery level:” is displayed. Also, an icon for displaying the remaining amount is displayed to the right of “External battery level:”. Next, before the set “recording time” elapses, the screen transitions to the screen Sa3 as the remaining battery level decreases to such an extent that the drive recorder 4 becomes inoperable.

  When the control unit determines that the SD card remaining capacity is not sufficient and “monitoring recording overwrite” is set to “OFF” (in FIG. 5, “SD card remaining capacity: NG”, “previous recording overwrite”). The control unit displays a screen Sa6 in order to prompt the user to change the “setting”, for example, to change the “previous recording overwrite” to ON. On the screen Sa6, a message “There is no space in the monitoring recording folder, MENU button: change setting, SD button: deletion of monitoring recording, power off in XX seconds” is displayed. Within 30 s from the start of display of the screen Sa6, the screen Sa14 (FIG. 8) is displayed in response to the user pressing the “MENU” button. The screen Sa14 is a setting screen for accepting “setting”. As will be described later, when the “MENU” button is pressed while the setting screen (screens Sa14 to Sa17) is displayed, “setting” may be changed. Returning to “mode”, the control unit again determines whether the remaining amount of the SD card and the remaining amount of the battery are sufficient. On the other hand, if the “SD” button and the “MENU” button are not pressed within 30 s from the display start of the screen Sa6, no operation is timed out, the screen Sa3 is transitioned to, and the power is turned off.

  When the “SD” button is pressed after the screen Sa6 is displayed, the control unit displays the screen Sa12 because the user has instructed to erase the data on the SD card. On the screen Sa12, a message “Delete the monitoring recording folder, MENU button: cancel, start monitoring recording after deletion in XX seconds” is displayed. Next, after the display of the screen Sa12, if the “MENU” button is not pressed within a predetermined time, it is determined that the user has consented to erasing the SD card data, and the monitor recording folder is cleared. Sa5 is displayed. On the other hand, if the “MENU” button is pressed within a predetermined time after the display of the screen Sa12, it is determined that the user cancels the deletion of the SD card data, and the screen Sa6 is not cleared without clearing the monitoring recording folder. Display the screen. As described above, when the SD card remaining amount of the SD card is small, the user can erase the recorded parking data by a simple operation with one button. Here, the parking recording data is recording data stored in parking recording.

  The recorded data stored in the folder assigned to “Monitoring Recording” and “Event Recording under Monitoring” is unnecessary data if there is no abnormality in the vehicle. Can erase data. Here, the simple delete button is an “SD” button that is pressed while the screen Sa6 is displayed.

  The screen Sa8 and the screen Sa10 are display screens during the monitoring recording. Screens Sa7 and Sa9 are display screens during event recording. The screen Sa8 and the screen Sa7 are in a screen off state, and the screen Sa10 and the screen Sa9 are in a screen on state. The screen off state is a state where the backlight is not lit, and the screen on state is a state where the backlight is lit. Although the screens Sa8 and Sa7 are in the screen-off state, the control unit turns on the recording lamp with a lighting pattern different from that for continuous recording in order to notify the user that recording is in progress. The screen Sa10 and the screen Sa9 display the video captured by the camera in real time, and display an icon depicting the camera and an icon with a red circle clearly indicating that recording is in progress at the upper left of the screen. . In the upper right of the screen, the elapsed time from the start of recording and the resolution are displayed. The time is displayed at the lower left of the screen.

  When it is determined that an event has occurred in the monitoring recording state where the screen Sa8 is displayed, the control unit transitions to the screen Sa7 and switches to event recording. Further, when the end of the event is detected in the state of the monitoring recording displaying the screen Sa7, the screen transitions to the screen Sa8 and is switched to the monitoring recording. Similarly, when it is determined that an event has occurred in the state of the monitoring recording displaying the screen Sa10, the screen transitions to the screen Sa9 and switches to event recording. Further, when the end of the event is detected in the state of the monitoring recording displaying the screen Sa9, the screen transitions to the screen Sa10 and is switched to the monitoring recording. Note that the control unit determines that the event has ended when 30 seconds have elapsed since it was determined that the event occurred. The screen Sa8 and the screen Sa10 are alternately switched every time the “MODE” button is pressed. In addition, after 10 seconds have elapsed since the display of the screen Sa10 is started, the screen is switched to the screen Sa8. By setting the display screens to the screens Sa7 and Sa8, it is possible to save power and make the internal battery 34 last longer than the screens Sa9 and Sa10. You can also sneak a shot.

  During the monitoring recording displaying the screen Sa8, when the “monitoring recording time” has expired, the case where the battery level of the internal battery 34 which is an external battery is low “LOBATT”, and the cable 12 which is a power cord are If it is removed, the screen transitions to the screen Sa3. Similarly, during the monitoring recording displaying the screen Sa10, when the “monitoring recording time” expires, the battery remaining amount of the internal battery 34 which is an external battery is “LOBATT”, and the power cord. When the cable 12 is disconnected, the screen Sa3 is entered.

  When the “REC” button is pressed during the monitoring recording displaying the screen Sa10, the screen transitions to the screen Sa11 and the monitoring recording is stopped. Next, after one minute has elapsed since the display of the screen Sa11 was started, the screen Sa3 is transitioned to. If it is determined that an event has occurred while the screen Sa4 is being displayed, the screen transitions to the screen Sa9 and event recording is started.

  Of the recording conditions in the event recording mode, the “number of recorded frames” is set in advance and is 30 fps. Further, in the above description, the event recording is performed when the end of the event is detected. However, when “event recording overwrite” of the recording condition of “event recording mode” is “OFF” in “setting”, the event is recorded. If there is no remaining SD card allocated for recording, event recording is not executed. Further, the control unit does not perform event recording for 3 minutes from the start of monitoring recording. Thereby, it is possible to determine that an event has occurred when opening / closing a door such as a user's getting on / off or loading / unloading, and recording an event can be prevented.

<Setting of monitoring recording in monitoring recording mode>
Next, a setting screen that transitions when the “MENU” button is pressed while the screen Sa6 is displayed will be described with reference to FIGS. All of the screens Sa14 to Sa17 are setting screens for setting monitoring recording. As shown in the screen Sa14, the control unit displays “monitoring recording setting” in the upper right of the screen and displays a message “MENU, SD available: XX min” at the bottom of the screen. An icon depicting a back arrow is displayed on the right side of “MENU”. Accordingly, it is possible to notify the user that when the “MENU” button is pressed, the display returns to the previous display screen. Further, the control unit displays “usable time” calculated to the right of “SD available:”. In the center of the screen, “recording time”, “recording resolution”, “number of recorded frames”, and “previous recording overwrite”, which are setting items in the monitoring recording mode, are displayed in a list. The number of items that can be displayed on the screen is four, and when the “up” key or the “down” key is pressed, the items that are not displayed are scroll-displayed. In addition, in order to distinguish the currently selected item from other items, the background color is displayed differently (hereinafter referred to as “selection display”). Specifically, for example, both are displayed with white characters, the background color of the selected item is blue, and the background color of the other items is black. In FIGS. 8 and 9, the currently selected item is shaded and illustrated for explanation.

  As described above, when the “MENU” button is pressed during the display of the screen Sa6, the screen Sa14 is displayed. Each time the “down” key is pressed, the screen Sa15, the screen Sa16, the screen Sa16, the screen Sa17, and the screen Sa15 are changed in order. Similarly, every time the “up” key is pressed, the screen Sa17, the screen Sa16, the screen Sa15, the screen Sa14, and the screen Sa17 again are sequentially shifted.

  When the “OK” key is pressed during display of the screen Sa14, the screen Sa18 is displayed. On the screen Sa18, “recording time”, which is an item being set, is displayed at the upper right of the screen, and “1/5” indicating the page number of the display screen of “recording time” is displayed at the lower left of the screen. Similar to the screen Sa14, the number of items to be displayed is four, and every four items are divided, and one divided group is displayed as one page. As will be described later, there are 17 “recording time” options in total, and the total number of pages is 5. As the “down” key is pressed, the next page is displayed. As the “up” key is pressed, the previous page is displayed. In addition, illustration after the second page is omitted. The options for “Recording time” are 5 minutes, 15 minutes, 30 minutes, 45 minutes, 60 minutes (1 hour), 90 minutes (1.5 hours), 120 minutes (2 hours), 180 minutes (3 hours), 240 minutes (4 hours), 300 minutes (5 hours), 360 minutes (6 hours), 420 minutes (7 hours), 480 minutes (8 hours), 540 minutes (9 hours), 600 minutes (10 hours), 660 Minutes (11 hours), 720 minutes (12 hours). On the “recording time” display screen, if there are currently set options, a check mark is displayed at the left end of the currently set options.

  Also, options that are longer than the “usable time” calculated based on the remaining amount of the SD card and cannot be recorded are displayed in red (not shown). For example, if the “usable time” is 60 minutes, options longer than 90 minutes are displayed in red. As a result, the user can make settings while avoiding options that cannot be recorded. When the “OK” key is pressed during the display of the screen Sa18, the nonvolatile storage unit is updated with the selected option as the set value of “recording time”, and the screen Sa14 is transitioned to. If the “MENU” key is pressed while the screen Sa18 is being displayed, the setting value of the “recording time” stored in the nonvolatile storage unit is not updated, and the screen Sa14 is entered.

  When the “down” key is pressed during the display of the screen Sa14, the screen Sa15 is displayed. On the screen Sa15, the “recording resolution” is “selected and displayed”. When the “OK” key is pressed while the screen Sa15 is being displayed, the screen Sa19 is displayed. On the screen Sa19, “recording resolution” as an item being set is displayed at the upper right of the screen, and “1/1” indicating the number of pages of the “recording resolution” display screen is displayed at the lower right of the screen. There are four options for “recording time”, and there is one page for “recording resolution”. Specifically, the choices are 1080 pHD (1920 × 1080), 1080p (1440 × 1080), 720p (1280 × 720), VGA (640 × 480). As with the “recording time”, when there are currently set options, a check mark is displayed at the left end of the currently set options. When the “OK” key is pressed while the screen Sa19 is displayed, the nonvolatile storage unit is updated with the selected option as the set value of “recording resolution”, and the screen Sa15 is entered. If the “MENU” key is pressed while the screen Sa18 is being displayed, the screen Sa15 is transitioned to without updating the “recording resolution” setting value stored in the non-volatile storage unit.

  When the “down” key is pressed during display of the screen Sa15, the screen Sa16 is displayed. On the screen Sa16, the “number of recorded frames” is “selectively displayed”. When the “OK” key is pressed during the display of the screen Sa16, the screen Sa20 is displayed. On the screen Sa20, “number of recorded frames” which is an item being set is displayed on the upper right of the screen, and “1/2” indicating the page number of the display screen of “number of recorded frames” is displayed on the lower right of the screen. . Although illustration of the second page is omitted, there are two pages of “number of recorded frames”. There are five choices for “number of recorded frames”. Specifically, they are 1 fps, 5 fps, 10 fps, 15 fps, and 30 fps. As with the “recording time”, when there are currently set options, a check mark is displayed at the left end of the currently set options. When the “OK” key is pressed while the screen Sa20 is displayed, the nonvolatile storage unit is updated with the selected option as the set value of “number of recorded frames”, and the screen Sa16 is entered. If the “MENU” key is pressed while the screen Sa20 is displayed, the setting value of “number of recorded frames” stored in the non-volatile storage unit is not updated, and the screen Sa16 is entered.

  Similarly to “recording time”, options that cannot be recorded are displayed in red (not shown). The remaining number of recorded frames is calculated by dividing the remaining amount of the SD card by the set value of “recording time” and further by the amount of data corresponding to “resolution”. An fps value larger than the calculated possible number of recorded frames is displayed in red. For example, if the possible number of recorded frames is 10 fps, options of 15 fps or higher are displayed in red. As a result, the user can make settings while avoiding options that cannot be recorded. A table of “resolution” vs. “data amount” is recorded in the ROM in advance.

  When the “down key” button is pressed while the screen Sa16 is being displayed, the screen Sa17 is displayed. On the screen Sa17, “monitoring recording overwrite” is “selected and displayed”. When the “OK key” is pressed while the screen Sa17 is being displayed, the screen Sa21 is displayed. On the screen Sa21, “monitoring recording overwrite”, which is an item being set, is displayed at the upper right of the screen. There are two choices of “monitoring recording overwrite”, “ON” and “OFF”. As with “recording time”, if there are currently set options, a check mark is displayed for the currently set options. When the “OK key” is pressed while the screen Sa21 is displayed, the nonvolatile storage unit is updated with the selected option as the set value of “monitoring recording overwrite”, and the screen Sa17 is entered. If the “MENU key” is pressed while the screen Sa21 is displayed, the setting value of “monitoring recording overwrite” stored in the nonvolatile storage unit is not updated, and the screen Sa17 is entered.

  When the “MENU key” is pressed while the screens Sa14 to Sa17 are being displayed, the process proceeds to the “monitoring recording mode” (FIG. 5). In addition, when the remaining battery level of the monitoring battery 3 is reduced during the display of the screen Sa14 to the screen Sa17, or when the power cable 11 that is the power cord is disconnected, the screen Sa3 is transitioned to.

  As described above, the user who wants to perform monitoring recording displays the screen Sa14 to Sa17 immediately when the SD card remaining amount is low with the preset setting value and recording is not possible, and the setting value is set to the SD card. It is possible to change the option according to the remaining amount. Further, the drive recorder 4 displays “recording time” and “recording frame number” in red for the options that cannot be recorded. As a result, the user sets one of “recording time” and “number of recorded frames” to be prioritized, and then sets either of “recording time” and “number of recorded frames” as a recordable option. Can do.

<Monitoring recording settings>
In the above description, the setting screen in the monitoring recording mode that is transitioned when the SD card remaining amount is insufficient in the monitoring recording mode has been described. Apart from this, the drive recorder 4 is configured to accept more detailed settings for the monitoring recording mode in the constant monitoring mode. Next, a description will be given with reference to FIGS. 10 and 11.

  First, the constant recording mode and event recording will be described. As described above, the drive recorder 4 starts constant recording in the constant recording mode when the power is turned on and continuous recording is possible. Specifically, when the drive recorder 4 is turned on, an opening screen is displayed and then “Preparing for recording, please wait for a while” is displayed on the screen. Here, the control unit determines whether the setting of “always recording overwrite” is “ON” or whether continuous recording is possible when there is a free space in the folder of the SD card assigned to continuous recording. to decide. When it is determined that continuous recording is possible, continuous recording is started. On the other hand, when it is determined that the continuous recording is not possible, the display is switched to the camera video through display screen. The camera video through display screen is a screen that displays an image captured by the camera in real time. In addition, when event recording is executed during monitoring recording before the power is turned on, after the opening screen is displayed, the screen displays the message “There was an event recording during monitoring recording”. Transition. Thereby, the user can know that there was an event during the monitoring recording. When the “OK” button is pressed while the message “There was an event recording during monitoring recording” is displayed, or after 60 seconds have passed without any operation from the start of display, the above “Preparing for recording, The screen changes to “Please wait for a while”.

  As described above, the drive recorder 4 shifts to event recording according to a predetermined trigger in continuous recording. When the G sensor detects an impact during continuous recording, the screen transitions to the G sensor event recording screen, and when the “cursor (down)” button is pressed, the screen transitions to the one-touch recording screen. When the event recording is completed, a transition is made to the continuous recording screen. The G sensor event recording and the one-touch recording screen are displayed in different icons to notify the user whether the G sensor event recording or the one-touch recording screen is displayed.

  When the “MENU” key is pressed while the camera video through display screen is displayed, a menu screen is displayed. The menu screen is a screen that displays a list of setting items that can be set by the user. Similar to the screen Sa14, the number of items displayed on the menu screen is four, and every four items are displayed, and one group divided is displayed as one page. In addition to the above, the control unit displays the camera video through display screen even after the “REC” button is pressed during continuous recording and the continuous recording is stopped. In addition, when an event recording trigger occurs during display of the camera video through display screen, the control unit starts event recording, and when event recording ends, the control unit transitions to the camera video through display screen again.

  A screen Sb1 shown in FIG. 10 is the third page of the menu screen. As shown in the screen Sb1, the control unit displays “recording setting” in the upper right of the screen and displays “MENU” in the lower part of the screen. To the right of “MENU”, an icon depicting a return arrow is displayed. Displays the number of pages at the bottom right of the screen. There are 14 recording setting items. Specifically, “resolution”, “number of recorded frames”, “audio recording”, “event beep sound”, “always recording overwriting”, “one-touch recording overwriting”, “G sensor recording overwriting”, “screen auto-off”, “G sensor setting”, “G sensor sensitivity” “Monitoring recording setting” “Monitoring my area” “Monitoring my cancel area” “My area cancel”. “Resolution” and “number of recorded frames” are recording conditions that are always applied to recording. “One-touch recording overwrite”, “G sensor recording overwrite”, “G sensor setting”, and “G sensor sensitivity” are settings commonly applied to event recording in the constant recording mode and event recording in the monitoring recording mode. Accordingly, the user does not have to set the event recording in the constant recording mode and the event recording in the monitoring recording mode separately, and can reduce the troublesomeness felt by the user and make it easy to grasp.

  All of the screens Sb11 to Sb15 are screens for setting monitoring recording settings. As shown in the screen Sa14, the control unit displays “monitoring recording setting” in the upper right of the screen, and the monitoring recording setting items “recording mode”, “recording time”, “recording resolution”, “number of recorded frames”, “in the center of the screen”. List previous recording overwrite ”. The number of items displayed on the screen is four, and when the “up” key or the “down” key is pressed, items that are not displayed can be scrolled. Yes. In addition, the currently selected item is “selected and displayed”. In FIG. 10 and FIG. 11, the currently selected item is shaded and illustrated for explanation. Here, the items that can be set are those in which “recording mode” is added to the items displayed on the setting screen (FIGS. 9 and 10) in the monitoring recording mode. Therefore, the descriptions of “recording time”, “recording resolution”, “number of recorded frames”, and “overwrite the previous recording”, which are items displayed on the setting screen in the monitoring recording mode, are omitted as appropriate.

  If the “OK” button is pressed while the screen Sb1 is being displayed, the screen Sb11 is displayed. When the “OK” button is pressed while the screen Sb11 is being displayed, the screen Sb111 is displayed. On the screen Sa11, “monitoring recording setting”, which is an item being set, is displayed on the upper right of the screen, and “1/2” indicating the number of pages of the “monitoring recording setting” display screen is displayed on the lower left of the screen. On the screen Sa111, “recording mode” which is an item being set is displayed on the upper right of the screen. There are three options for “recording mode”: “automatic”, “manual”, and “OFF”. Since “recording mode” has been described above, description thereof is omitted. When the power is turned on, the monitoring battery 3 transmits a signal for inquiring about the remaining battery level, and when receiving a signal indicating the remaining battery level, it is determined that the monitoring battery 3 is connected. On the other hand, if the signal indicating the remaining battery level is not received, it is determined that the monitoring battery 3 is not connected. When the monitoring battery 3 is not connected, since the monitoring recording cannot be performed, the control unit grays out “automatic” and “manual”. Specifically, the characters are displayed in gray instead of white so that the user cannot select them.

  The screens Sb12, Sb13, Sb14, and Sb15 are the same as the screens Sa14, Sa15, Sa16, and Sa17, respectively, and thus description thereof is omitted.

  Here, “previous recording overwrite” set on the screen Sa17 and the screen Sb15 will be described with reference to FIG. “Previous recording overwrite” is for setting whether or not to overwrite the monitoring recording data which is the monitoring recorded data recorded up to the previous time. In the case of “OFF”, recording is performed within the remaining capacity of the monitoring recording folder without overwriting. Recording is performed in a vacant state, and recording is terminated as the vacant state is exhausted. In the case of “ON”, first, recording is performed in the monitoring recording folder. When the capacity is full and there is no free space, the previous monitoring recording is overwritten from the old one. In this case, the monitoring recording data being photographed this time is not overwritten, and the recording ends when the current data is recorded in the capacity of the SD card.

  For example, if the user has confirmed that the vehicle has not changed in the previous parking, the user can set it to “ON”. If the user has not confirmed it, the user can set “OFF”.

  Next, the “monitoring my area” shown in the screen Sb2 (FIG. 13) will be described. In the setting of “monitoring my area”, the user can set recording conditions different from the constant recording and monitoring recording for the area registered as “monitoring my area” in the setting. The “monitoring my area” is defined by the center position and the area radius. The control unit receives the center position of “monitoring my area” in “registration execution” described later. The control unit accepts the area radius of “monitoring my area” by setting “monitoring my area”.

  As shown in FIGS. 13 and 14, there are five options for “monitoring my area”: “recording time”, “recording resolution”, “number of recorded frames”, “area radius”, and “registration execution”. Of these, the screens Sb21 to Sb23, which are setting screens for “recording time”, “recording resolution”, and “number of recorded frames”, are the same as the above-described screens Sb12 to Sb14, respectively, and thus description thereof is omitted. In the screen Sb24 (FIG. 14), the control unit “selects and displays” “area radius”. When the “OK” key is pressed while the screen Sb24 is displayed, the screen transits to the screen Sb241. In the lower right corner of the screen Sb241, “1/2” that clearly indicates the number of pages of the “area radius” display screen is displayed. There are five options for “area radius”: “15 m”, “30 m”, “50 m”, “100 m”, and “200 m”. The number of items to be displayed is four, and every four items are divided, and one divided group is displayed as one page. The total number of pages of “area radius” is two pages. In addition, illustration after the second page is omitted. When the “OK” key is pressed while the screen Sb241 is displayed, the nonvolatile storage unit is updated with the selected option as the set value of the “area radius”, and the screen transitions to the screen Sb24. If the “MENU” key is pressed while the screen Sb241 is displayed, the screen transitions to the screen Sb24 without updating the setting value of the “area radius” stored in the nonvolatile storage unit. As described above, the “area radius” is specified by the user.

  When the “down” key is pressed during the display of the screen Sb24, the screen Sb25 (FIG. 14) is displayed. In the screen Sb25, the control unit “selects and displays” “registration execution”. When the “OK” key is pressed while the screen Sb25 is displayed, the screen transits to the screen Sb251. On the screen Sb251, a message “Do you want to register the current location in the monitoring my area?” And options “OK” and “Cancel” are displayed. Also, the control unit reads out the number of points that can be recorded in the nonvolatile storage unit and the number of points recorded in the nonvolatile storage unit with reference to the nonvolatile storage unit, and what number this registration is Display (○ / ○) clearly indicating whether or not. When the “OK” button is pressed, the control unit displays the screen Sb252 and records the position information output from the GPS sensor in the nonvolatile storage unit as the central position of the “monitoring my area”. On the screen Sb252, a message “Current location registered in monitoring my area (○ / ○ cases)” is displayed. After 3 seconds from the start of display of the screen Sb252 and when the “OK” button is pressed, the screen transitions to the screen Sb251.

  As shown in FIG. 15, in the “registration execution”, the control unit sets the area radius set in the “area radius” with the location P1 recorded in the nonvolatile storage unit as the center position of the “monitoring my area”. The area of the circle A1 drawn with the value as a radius is recognized as a “monitoring my area” which is a parking area.

  For example, it is assumed that the user parks at the first parking place P1 and presses the “OK” button while the screen Sb251 is displayed. The control unit records the location P1 in the nonvolatile storage unit as the center position of the “monitoring my area”. When the vehicle is parked at the place P2 in the circle A1, which is in the “monitoring my area” after the second time, the monitoring recording is started in accordance with the recording condition of the set “monitoring my area”. The recording conditions include “recording time”, “recording resolution”, and “number of recorded frames”. Once the user sets the recording condition, the control unit automatically performs monitoring recording with the setting from the next time.

  It is assumed that the user registers the first parking place as the central position of the “monitoring my area”. If “monitoring recording setting” is set to “automatic”, the drive recorder 4 automatically performs monitoring recording if the vehicle is parked in “monitoring my area” from the second time. If “monitoring recording setting” is set to “manual”, the drive recorder 4 starts monitoring recording by manually pressing the “REC” button from the second time. When the user doesn't care (safe and short-time parking places such as convenience stores), the user wants to record automatically with the minimum setting (1 fps). You can respond to requests that you want to set by looking at the remaining amount.

  When the “down” key is pressed during the display of the screen Sb2, the screen Sb3 (FIG. 13) is displayed. On the screen Sb3, the control unit “selects and displays” the “monitoring my cancel area”. When the “OK” button is pressed while the screen Sb3 is displayed, the screen transitions to the next setting screen. Since the setting screen is the same as the “monitoring my area”, illustration and description are omitted. As with “Monitoring My Area”, there are five options for “Monitoring My Cancel Area”: “Recording Time”, “Recording Resolution”, “Recording Frame Number”, “Area Radius”, and “Registration Execution”. Also, “recording time”, “recording resolution”, “number of recorded frames”, “area radius”, and “registration execution” have a plurality of options as in “monitoring my area”. The condition set in the “monitoring my cancel area” is applied when the “REC” button is pressed on the screen Sa1.

  When the “down” key is pressed while the screen Sb3 is being displayed, the screen Sb4 (FIG. 13) is displayed. On the screen Sb4, the control unit “selects and displays” “cancel my area”. The screen Sb4 is a screen for accepting deregistration of “monitoring my area”. When the “OK” button is pressed while the screen Sb4 is being displayed, a screen for displaying a list of options of “current location cancellation” and “all location cancellation” is displayed. If the “OK” button is pressed while “Current location release” is “Selected”, “OK” or “Cancel” options will be displayed along with the message “Do you want to release My area information for the current location?” Is displayed. In addition, when the “OK” button is pressed while “OK” is selected, the screen shifts to a screen that displays a “Release” message, and the “Monitoring My Area” is displayed in the nonvolatile storage unit. Of the position information stored as the center position, the position information that matches the vehicle position output from the G sensor is erased from the nonvolatile storage unit. Further, when “OK” is pressed while “Cancel” is “Selected display”, it is determined that the user has canceled the cancellation, and the items “Current location cancellation” and “All location cancellation” are displayed. Transition to.

  On the other hand, when the “OK” button is pressed while “select all” is displayed on the screen displaying a list of “current location release” and “all location release” options, Along with the message “Do you want to release my area information?”, You will see the “OK” and “Cancel” options, and when the “OK” button is pressed, the screen will change to a screen that displays the “Release” message. At the same time, the position information of all the points stored as the central position of the “monitoring my area” in the nonvolatile storage unit is deleted from the nonvolatile storage unit.

  When the drive recorder 4 records on an SD card, the “always recording”, “G sensor recording” event recording, “one touch recording” event recording, “parking monitoring recording”, etc. Determine the upper limit capacity and record. Also, the recorded video data can be reproduced and the recorded video data can be deleted. Specifically, on the above-described camera video through display screen, when the “MODE” key is pressed, the screen displays the options of “always recording”, “G sensor recording”, “one touch recording”, and “monitoring recording” as a playback folder. Transition. For example, when the “OK” key is pressed while “monitoring recording” is selected, the recording data is displayed on the display 41. Further, the SD card can be removed from the drive recorder 4 and reproduced by, for example, a PC. Here, “G sensor recording” is event recording that starts when the control unit determines that an event has occurred based on information of the G sensor. “One-touch recording” is event recording started by the control unit when the “cursor (down)” button is pressed. “Parking monitoring recording” refers to monitoring recording.

  When it is desired to delete the data recorded on the SD card, when the “SD” button is pressed on the camera video through display screen, the screen changes to the “SD card maintenance” screen, and the “monitoring recording folder” When “Clear” is selected and the “OK” button is pressed, the “monitored recording” data is deleted.

<Communication function>
The drive recorder 4 receives the power from the monitoring battery 3 and transmits it to a center connected to the Internet after the engine is stopped after the engine is stopped. Here, the center is, for example, a database that can be browsed by an administrator who manages the vehicle.

  The CPU executes two codecs, and in continuous recording, the recording data codec for transmission from the LAN interface or the mobile communication interface 52 and the recording data codec for writing to the SD card are concurrently processed as separate processes. And run. Thereby, the recording data to be transmitted from the LAN interface or the mobile communication interface 52 can be different from the recording data recorded on the SD card. Here, it is assumed that the recorded data recorded on the SD card has a smaller compression rate than the recorded data to be transmitted from the LAN interface or the mobile communication interface 52, and the image at the time of reproduction is clean.

  Next, a data transfer method in communication of constantly recorded data will be described with reference to FIG. The control unit records an image output from the camera on the RAM and the SD card during regular recording. Specifically, the CPU stores the recording data obtained by converting the image output from the camera into the JPEG format in the RAM. The CPU also outputs SD card recording data obtained by compressing the recording data recorded in the RAM to the SD card interface. Here, the recording data for the SD card is in the JPEG format, and the data amount can be reduced to about 1/10 or 1/20 of the recording data recorded in the RAM. The SD card interface writes input SD card recording data to the SD card. Further, the CPU outputs communication recording data obtained by compressing the recording data recorded in the RAM to the LAN interface or the mobile communication interface 52. The LAN interface or mobile communication interface 52 packetizes input recording data for communication and transmits it to a transmission destination via the Internet. Similarly, in the event recording, the control unit records the recording data in JPEG format on the RAM and the SD card. As described above, the recording data in the constant recording and the recording data in the event recording are each stored in the corresponding SD card folder.

  During continuous recording, it connects to the Internet via a base station and transfers recorded data to a transmission destination. The communication speed of mobile communication for mobile terminals is not uniform, for example, about 10 Mbps in the countryside, about 2 Mbps in the city, and in areas where the communication speed is low, the data amount of the recorded data to be transmitted is reduced to about 1-2 Mbps, for example. Otherwise, transmission will not be in time. For this reason, a control part produces | generates the recording data for communication which compressed the video recording data currently recorded on RAM, and transmits. Note that the recording conditions for data of about 1 Mbps are a resolution of 720 × 400 and a frame rate of about 15 fps. Further, when the vehicle is traveling, a period during which communication is impossible may occur. For example, when the base station is switched or when entering an area with a large amount of traffic. In this case, the recorded data cannot be transferred during a period in which communication is not possible. That is, a portion that cannot be transmitted to the recorded data is generated.

  The control unit restarts data transfer from the currently recorded video data as communication becomes possible after communication becomes impossible. That is, the recorded data in which the part that cannot be communicated is missing is transferred to the transmission destination. When the engine is turned off and the ACC power is turned off, continuous recording ends and the part that could not be sent is sent. Next, the event recording part is transmitted.

  When receiving a battery switching signal indicating that the power supply source has been switched to the internal battery 34 from the monitoring battery 3, the control unit measures the communication speed. The control unit transmits recording data at a bit rate corresponding to the communication speed. For example, when the communication speed is 100 Mbps, 100 Mbps recording data is transmitted. Specifically, the CPU compresses the recorded data recorded in the RAM so as to have a predetermined bit rate. Next, the CPU outputs the compressed recording data for communication to the faster communication speed of the LAN interface and the mobile communication interface 52. On the other hand, when the communication speed is slower than the reference value, the control unit compresses the recorded data recorded in the RAM into recorded data having a bit rate equivalent to that when the ACC power is on, and transmits the recorded data. When the ACC power is on, the image time relative to the transmission time can be lengthened by reducing the data amount per unit time of the recorded data.

<Modification of data transfer method>
Next, method 2 which is a modification of the data transfer method will be described with reference to FIG. Since the writing method to the SD card is the same as method 1, description thereof is omitted. In method 2, when communication is possible, data is transferred not from the current recorded data but from data until communication is disabled. That is, time-series data is transferred to the transmission destination. When the engine is turned off and regular recording ends, the part that could not be transmitted is transmitted. Next, the event recording part is transmitted.

  Next, Method 3 which is a modification of the data transfer method will be described with reference to FIG. Since the writing method to the SD card is the same as method 1, description thereof is omitted. In Method 3, during continuous recording, data transfer for continuous recording and data transfer for event recording are executed in parallel. When communication is possible, the current recording data is transferred instead of the recording data until communication is disabled. In other words, time-series continuous recording data and event recording data are transferred to the transmission destination. When the engine is turned off and the continuous recording is finished, a portion where the recording data for the continuous recording could not be transmitted and a portion where the recording data for the event recording could not be transmitted are transmitted.

  As described above, the drive recorder 4 can receive the recording data that could not be transmitted during the period when the ACC power is ON, and can receive the power supplied from the monitoring battery 3 and transmit it after the ACC power is turned OFF.

  Next, another example of the drive recorder is shown. This is also a modification of the data transfer method. A data transfer method and its configuration will be described with reference to FIGS. In addition, about the structure similar to the said Example, it demonstrates using the same name and code | symbol. In methods 1 to 3 of the data transfer method described above, it has been described that the recording data that could not be transmitted due to the occurrence of the communication disabled period is transmitted after the engine is turned off. In the method 4, the drive recorder 4 transmits the recording data that could not be transmitted together with the real-time recording data during a period in which the engine is ON.

  First, the configuration of the drive recorder 4 will be described with reference to FIG. In addition to the camera 42, the microphone 43, the SD card interface 47, and the mobile communication interface 52, the drive recorder 4 includes a storage compression unit 44, a communication compression unit 45, an audio compression unit 46, an image buffer 48, an audio buffer 49, communication A data creation unit 50 and a ring buffer 51 are included. The storage compression unit 44 and the communication compression unit 45 are respectively the above-mentioned “codec of recording data for writing to the SD card”, “codec of recording data for transmission from the LAN interface or mobile communication interface”, etc. It is realized by. The storage compression unit 44 and the communication compression unit 45 output the compressed image data to the SD card interface 47 and the image buffer 48, respectively. Note that the communication compression unit 45 detects the current communication rate, and automatically changes the data capacity so that it can be transmitted in real time as much as possible, thereby generating image data that is video data. When compressing, the communication compression unit 45 acquires the communication rate measured by the mobile communication interface 52, for example, and compresses the image data at a compression rate corresponding to the acquired communication rate. The SD card interface 47 includes two SD card insertion slots, and SD cards 61 and 62 are inserted therein. The storage compression unit 44, the communication compression unit 45, the audio compression unit 46, the SD card interface 47, the image buffer 48, the audio buffer 49, the communication data creation unit 50, the ring buffer 51, and a part of the mobile communication interface 52 are SOCs. (System On a Chip) should be realized.

  The audio compression unit 46 compresses the audio data collected by the microphone 43 into MP3 format audio data, and outputs the compressed audio data to the SD card interface 47 and the audio buffer 49. The image buffer 48 and the audio buffer 49 buffer the compressed image data and audio data, respectively. The communication data creation unit 50 reads the compressed image data and sound data from the image buffer 48 and the sound buffer 49, creates communication data, and gives information on the date and time when the created communication data was created, and the ring buffer To 51. The ring buffer 51 buffers communication data to which information on the four created dates and times is given. The mobile communication interface 52 reads communication data from the ring buffer 51, packetizes it, and transmits it to the transmission destination.

  The SD card interface 47 writes the compressed image data and audio data output from the storage compression unit 44 and the audio compression unit 46 to the storage area of the SD card 61 or the SD card 62. Here, the SD card interface 47 writes the recording data for each of the SD card 61 and the SD card 62 by dividing the storage area into a storage area and a communication area. The storage area is an area for leaving cleanly, and is an area for storing the image data output from the storage compression unit 44 and the audio data output from the audio compression unit 46. The communication area is an area for storing all or part of communication data that could not be transmitted. As described above, in an area where the communication speed is low, transmission is not in time unless the data amount of communication data, which is recorded data to be transmitted, is reduced. Therefore, the communication data is data compressed according to the communication speed. The area for leaving clean is an area for leaving recorded data in which the compression rate is smaller than that of communication data and the image at the time of reproduction is clean. The SD card interface 47 has an upper limit for “always recording”, “G sensor recording”, “one touch recording”, “parking monitoring recording”, etc. in each of the storage area and the communication area. Determine the capacity and write. The SD card interface 47 reads all or part of the communication data that could not be transmitted from the ring buffer 51 and writes it in the communication area of the SD card 61 or the SD card 62. Further, the SD card interface 47 reads all or part of the communication data that could not be transmitted from the communication area of the SD card 61 or the SD card 62 and outputs it to the mobile communication interface 52. The voice compression unit 46 and the communication data creation unit 50 are realized by the CPU executing a program stored in the ROM.

  Next, the configuration of communication data will be described with reference to FIG. In FIG. 20, “image data” indicates image data output from the communication compression unit 45, “audio data” indicates audio data output from the audio compression unit 46, and “communication data” is generated by the communication data generation unit 50. Communication data to be transmitted. The horizontal axis of data is the time axis. The image data is composed of an I frame and a P frame. Here, the I frame is data that can be reproduced independently, and the P frame is difference data from the image data of the previous frame. The image data has one I frame and a plurality of P frames. The communication compression unit 45 assigns a serial number as additional information to each frame in order from the first frame. The serial number is an identifier indicating the order of time series. The audio compression unit 46 divides the audio data into sections corresponding to the I frame to the next I frame of the image data, and assigns a serial number to each of the divided audio frames. The communication data creation unit 50 creates communication data with one I frame, one segment of audio data, and a plurality of P frames as one communication unit. The communication data is data in which I frames, audio data, and P frames are sequentially arranged.

  The communication compression unit 45 creates three I frames during 1 s. For example, when the frame rate is 15 fps, the communication compression unit 45 converts the image data into one I frame and four P frames every 1/3 s. The audio compression unit 46 adds a mark to the audio data in synchronization with the communication compression unit 45 converting it into an I frame. The communication data creation unit 50 first reads out the I frame from the image buffer 48, and then reads out the audio data of one section from the audio buffer 49 to the mark corresponding to the next I frame from the mark corresponding to the I frame. Then, P frames from the image buffer 48 to the next I frame are read, and communication data with each read data as one communication unit is output to the ring buffer 51. The ring buffer 51 sequentially buffers communication data for one communication unit. When the memory area is full, the oldest communication data is overwritten with the latest communication data. When the frame rate is 15 fps, the reproduction time of one communication unit of communication data is 1/3 s. The ring buffer 51 stores a plurality of communication data for one communication unit. Note that the transmission destination is equipped with a playback device that can receive and play back communication data, and can play back the received communication data to view video and listen to audio. Also, when an I frame, which is a part of communication data, is received, the playback device can play back a still image based on the I frame. In addition, when an I frame and audio data, which are part of communication data, are received, the playback device can play back still images and audio based on the I frame. In this case, when the voice data is received halfway, the voice of the received section can be reproduced. In addition, when a part of the communication data, i.e., halfway through the I frame, audio data, and P frame, is received, the playback device can play back video and audio based on the received P frame.

  The communication data configuration described above can be applied not only when the method 4 is used but also when the methods 1 to 3 are used.

  Next, communication processing executed by the CPU to transfer recording data to the transmission destination in real time during continuous recording will be described with reference to FIG. In the following description, transferring recorded data in real time by communication processing may be described as real time transfer. The CPU starts communication processing when continuous recording starts. First, the CPU causes the mobile communication interface 52 to read communication data buffered in the ring buffer 51 (S1). The communication data here is communication data of one communication unit, and is the same in the following description. Next, communication data is transmitted to the mobile communication interface 52 (S3). Thereby, the constantly recorded data is transferred to the transmission destination in real time. Next, after a predetermined time has elapsed, it is determined whether or not the transmission of the mobile communication interface 52 is successful (S5). Here, the predetermined time is a time shorter than the reproduction time of the communication data. During continuous recording, communication data is generated from the next to the next, and unless it is transmitted within a time equal to or shorter than the reproduction time of the communication data, communication data that could not be transmitted accumulates. In order to perform real-time transfer while performing continuous recording, it is necessary to complete the transfer of communication data for one communication unit within the reproduction time of communication data for one communication unit. If the CPU fails to transmit, the SD card 61, 62 stores the I frame, P frame, and one section of audio data for which communication data could not be transmitted. The mobile communication interface 52 further divides communication data, packetizes it, and transmits it. When the packet transmission is in error, a retransmission process is performed in which the packet that could not be transmitted due to the error is transmitted again. For example, if communication data for one communication unit cannot be transmitted due to frequent occurrence of reproduction processing due to poor radio wave conditions, the communication data that could not be transmitted is stored in the SD cards 61 and 62. When the mobile communication interface 52 can transmit communication data of one communication unit, the CPU determines that the transmission is successful. If the CPU determines that the transmission is successful (S5: Yes), the process proceeds to step S7 to transmit the next communication data. On the other hand, if the CPU determines that the transmission has failed (S5: No), the communication data that could not be transmitted to the SD card interface 47 could not be transmitted from the ring buffer 51. The data is read and stored in the SD card 61 or the SD card 62, the fact that the transmission could not be performed is stored in the RAM (S9), and the process proceeds to step S7. When the I frame cannot be transmitted, the communication data of one communication unit, that is, the I frame, the P frame, and the audio data for one section are stored. When all of the audio data for one section cannot be transmitted, the audio data for one section and the P frame are stored. If all of the plurality of P frames cannot be transmitted, the P frames that could not be transmitted are stored. If transmission is not possible within the reproduction time of communication data for one communication unit (S5: NO), communication data for the next one communication unit is transmitted (S1, S3). Although the communication data of one communication unit cannot be received at the transmission destination, the communication data of one communication unit can be reproduced without the communication data of one communication unit before and after, so the transmission destination is the next one communication unit. When the communication data can be received, the communication data of one communication unit can be reproduced. Even when communication data of one communication unit cannot be transmitted, the section that cannot be viewed can be limited to the real time of one communication unit, in the above example, only 1/3 s.

  In step S7, it is determined whether or not the communication data has been completed. When the continuous recording ends, no new communication data is generated, so that the ring buffer 51 is not overwritten with new communication data. The CPU moves the reading position of the ring buffer 51 next, and the created date and time information given to the communication data at that position is the created date and time information given to the communication data read in step S1. If it is older, it is determined that the communication data has ended. If it is determined that the communication data has ended (S7: Yes), the communication process is ended. On the other hand, if it is determined that the communication data has not ended (S7: No), step S1 is executed for the next communication data. The CPU reads the communication data at the read position of the moved ring buffer 51.

  Note that the CPU reads out all or part of the communication data that could not be transmitted in the communication processing from the SD card 61 or the SD card 62 and transmits it in response to the communication being restored. The CPU transmits all or part of the communication data that could not be transmitted in parallel with the communication processing. Simultaneously with the real-time transfer, the data at the time when the real-time transfer could not be performed is read from the non-recorded medium of the SD card 61 or the SD card 62 and transferred simultaneously as described later. Here, during the continuous recording, the SD card interface 47 writes the recording data for storage, so the recording data is written and the communication data is read simultaneously. It is difficult to execute writing and reading in parallel for one SD card. Therefore, in Method 4, using two SD cards, the storage data is written and the communication data that could not be transmitted is read. In addition, when communication data cannot be transmitted, as described above, for example, when a base station is switched or when communication is interrupted such as when entering an area with a large amount of communication.

  In FIG. 22, the horizontal axis is a time axis, and “recording data” indicates communication data and storage data created by the communication data creation unit 50. Here, the storage data is compressed image data and audio data output from the storage compression unit 44 and the audio compression unit 46. “Storage medium 1 data recording” and “storage medium 2 data recording” indicate periods during which storage data is written to the SD card 61 and to the SD card 62, respectively. A hatched portion indicates a period during which communication data is written to the SD card 61 or the SD card 62. However, during the period indicated by the rectangular figures “storage medium 1 data recording” and “storage medium 2 data recording” in FIG. 22, writing is not performed all the time, and writing is performed in a short period of time. There is a period in which writing is not performed during a period in which writing is performed. The storage data and the communication data are written in the period indicated by the rectangular figure “storage medium 1 data recording” in FIG. In the “communication connection state”, a period during which the mobile communication interface 52 can communicate is indicated by an arrow. “Real-time transfer by communication” indicates a period during which communication data is transmitted in communication processing. “Data transfer that could not be transmitted” indicates a period during which communication data that the mobile communication interface 52 could not transmit in the communication process is being transmitted.

  During the regular recording period, the SD card interface 47 alternately switches the storage data write destination between the SD card 61 and the SD card 62 every predetermined time (for example, every 10 s), and writes the data in a time division manner. As a result, since one of the SD cards 61 and 62 is being written while the other is not being written, the SD card interface 47 can facilitate reading from the other. One of the SD cards 61 and 62 is used for writing and recording storage data, which is recording data for storage, and the other of the SD cards 61 and 62 is used for reading and transmitting communication data that could not be transmitted. . In the period from time t1 to time t2, which is a communicable period, the mobile communication interface 52 executes communication processing and transmits communication data. During the period from time t2 to time t4 when communication is not possible, the SD card interface 47 writes the storage data to the storage area and writes the communication data to the communication area. Here, the SD card interface 47 writes the communication data to the same SD card as the SD card to which the storage data is written. Step S9 of the communication process is performed during a free time when the storage data is not written to the storage area. When communication is possible at time t4, the CPU transmits all or part of the communication data written in the SD card 62 because it cannot be transmitted, as indicated by the hatched portion in FIG. Read and send. Specifically, when a signal indicating that communication is possible is received from the mobile communication interface 52, it is determined whether or not it is stored in the RAM, and it is determined that it is stored that the transmission could not be performed. If the communication data is stored in the communication area of the SD card 62 which is the SD card to which the storage data is not written, the communication data is stored. All or part of the communication data being read is read and transmitted. The time for transferring communication data is shorter than the time for writing communication data to the SD cards 61 and 62. Time t4 to time t5 during which communication data is transferred is shorter than time t2 to time t3 during which data is written to the SD card 62. Therefore, the drive recorder 4 can transmit all or part of the communication data that could not be transmitted during the period from time t2 to time t3 during the period from time t4 to t5. From time t4 to t5, since the SD card interface 47 writes the data for storage to the SD card 61, all or part of the communication data is read from the SD card 62 that has not been written. Next, when the writing destination is switched to the SD card 62 at time t5, all or part of the communication data that could not be transmitted is read from the SD card 61 and transmitted. Similarly, for all or part of communication data that could not be transmitted during the period from time t6 to time t7, when communication is enabled at time t7, the CPU transmits communication data from the SD card 62 that has not been written. All or a part of is read and transmitted. Next, at time t8, when the writing destination is switched to the SD card 62, the CPU reads out all or part of the communication data that could not be transmitted from the SD card 61 for transmission. For example, if the actual time required for photographing in one communication unit is 1 s and the predetermined time for switching the storage data writing destination is 10 s, one cycle of communication processing steps S1 to S7 is 10 times during 10 s. Done. In FIG. 22, for example, at time t <b> 2, the time when the communication connection state becomes impossible to communicate and the start time of the period during which communication data indicated by the hatched portion is written to the SD card 62 are shown as the same time. However, in detail, since communication is disabled and step S5 is executed after step S5 is executed, communication data is written to the SD card 62. It will be later than the time when it was disabled.

  Although not shown in FIG. 22, if all communication data cannot be transmitted during the engine ON period, the drive recorder 4 is powered by the monitoring battery 3 after the engine is turned OFF, and the remaining Send communication data.

  The period during which communication is disabled is indefinite, and it is not known where the communication will be interrupted, so communication may be disabled during execution of step S3 of the communication process. Here, the transmission destination is transmitted from the beginning of the communication data. That is, I frames, audio data, and P frames are transmitted in this order. When communication becomes impossible in the middle of the P frame, the I frame and audio data are transmitted to the transmission destination. Since the I frame is data that can be reproduced independently, at least a still image and audio data can be reproduced at the transmission destination. Further, since communication data that cannot be transmitted and cannot be transmitted is transmitted later, communication data that is not arranged in time series is received at the transmission destination. Since the communication data has a serial number assigned to each frame, the transmission destination can easily reproduce the communication data in the transmitted section by sorting all the communication data and then sorting in the order of the serial number. A general moving image file has a management area for managing allocation of data areas at the head and tail of the file. Since the management area is indispensable for reproducing the moving image file, the moving image file cannot be reproduced when the trailing management area is not transmitted to the transmission destination. In this respect, since the communication data does not have a management area, as described above, the communication data in the transmitted section can be reproduced at the transmission destination. Further, since the communication data of one communication unit has one I frame, even when communication data of one communication unit cannot be transmitted, the communication data of another one communication unit can be reproduced.

<SD card storage and data transfer settings>
The drive recorder 4 is configured to accept, for each “data item” and “data content”, whether or not to perform recording and data transfer to the SD card. As shown in FIG. 23, the “data item” includes “always recording”, “G sensor event recording”, “one touch event recording”, and “history”. “History” is data that does not have image and audio data such as recorded data. Among these, “video data”, “audio data”, “GPS”, “acceleration sensor”, “vehicle information” are included in the “data contents” of “always recording”, “G sensor event recording”, and “one touch event recording”. There is. “Data content” of “history” includes “GPS”, “acceleration sensor”, and “vehicle information”. CPU obtains through “Permanent recording”, “G sensor event recording”, “One touch event recording”, vehicle position output from GPS sensor, acceleration output from G sensor, OBD connection cable The recorded vehicle information is recorded in the RAM together with the date and time. “GPS”, “acceleration sensor”, and “vehicle information” of “data contents” are the vehicle position, acceleration, and vehicle information recorded together with the date and time, respectively. When “GPS”, “acceleration sensor”, and “vehicle information” are transferred to the transfer destination via the LAN interface or the mobile communication interface 52, the CPU detects the vehicle position and acceleration every frame or 1 s of the video data. , Delimit and transfer vehicle information data.

  “Recording” in “Settings” shown in FIG. 23 refers to storing recorded data in the SD card. “Transfer” refers to transfer of recorded data to a transmission destination via the LAN interface or the mobile communication interface 52. “◯” shown in FIG. 23 indicates a setting for executing “record” or “transfer”, and “x” indicates a setting for not executing. The nonvolatile storage unit of the drive recorder 4 stores settings using “◯” and “×” as parameters corresponding to “data item”, “data content”, “record”, and “transfer”. For example, the drive recorder 4 accepts the above setting on the setting screen, and executes “record” and “transfer” in the case of “◯”. A driver of a vehicle may be different from an administrator who manages the “recorded” or “transferred” data, for example, manages the vehicle. In this case, the driver may desire not to “record” or “transfer” all “data contents”. Providing a drive recorder 4 that can be set according to the intentions of both the driver and the administrator by accepting the setting of “record” or “transfer” in detail for each “data item” and “data content” it can. The user can set according to the operation method and needs of the drive recorder 4. Further, when there is “data content” that is not recorded during continuous recording, G-sensor event recording, and one-touch event recording, it may be configured to indicate on the display 41 that the data is not recorded.

  Here, the drive recorder 4 is an example of an in-vehicle device, the monitoring battery 3 is an example of a device, and the internal battery 34 is an example of a battery. The input / output connector 3b is an example of a communication unit, and the CPU 33 is an example of a control unit. “Resolution” and “number of recorded frames” that can be selected on the setting screen are examples of the first setting function, and “monitoring recording setting” that can be selected on the setting screen is an example of the second setting function, and can be selected on the setting screen. “G sensor setting” is an example of a third setting function. The input / output connector 4a is an example of a device communication unit, the camera is an example of a photographing unit, the SD card is an example of a storage medium, the operation button is an example of a user interface, and the GPS sensor is an example of a positioning unit. The non-volatile recording unit is an example of a recording unit. The battery switching signal is an example of “a switching signal indicating that the power supply source has been switched to the battery”, and the vehicle switching signal is an example of “a signal indicating that the power supply source has been switched to the vehicle”. The power cable 11 is an example of “a power supply line between the vehicle and the present apparatus”, and the cable 12 is an example of “a power supply line between the present apparatus and the in-vehicle device”. The communication data creation unit 50 is an example of a creation unit, and the SD cards 61 and 62 are examples of a first recording medium and a second recording medium. The mobile communication interface 52 and the LAN interface are examples of transmission means. The SD card interface 47 is an example of storage control means.

According to the above-described embodiment, the following effects can be obtained.
The monitoring battery 3 can continue to supply power to the drive recorder 4 even when power supply from the vehicle is interrupted. Further, although the drive recorder 4 generates heat from the inside of the casing, the monitoring battery 3 is separate from the drive recorder 4 and thus is less susceptible to the heat generated from the inside of the drive recorder 4. By making it difficult for the temperature of the internal battery 34 to rise, it becomes possible to prevent charging and discharging from becoming impossible as the temperature rises, making it difficult for power supply to the drive recorder 4 to be disabled. Since the monitoring battery 3 is installed under the seat, the monitoring battery 3 can be made large and heavy enough to be installed under the seat, so that the capacity of the internal battery 34 can be increased. As a result, the drive recorder 4 can continue to operate for a long time even after the power supply from the vehicle is cut off. In addition, since the monitoring battery 3 is installed under the seat, it does not press on the living space, and does not hit people or get in the way even when driving or getting on or off the vehicle while riding in the car. Can be installed.

  The CPU 33 outputs a switching signal when the power supply source is switched to the internal battery 34. In addition, when the ACC power source is turned on within the specified time, the CPU 33 outputs a switching signal notifying that the power supply source has been switched to the ACC power source. As a result, the drive recorder 4 can know that the power supply source has been switched to the internal battery 34.

  “One-touch recording overwrite”, “G sensor recording overwrite”, “G sensor setting”, and “G sensor sensitivity” on the setting screen are settings commonly applied to event recording in the constant recording mode and event recording in the monitoring recording mode. Accordingly, the user does not have to set the event recording in the constant recording mode and the event recording in the monitoring recording mode separately, and can reduce the troublesomeness felt by the user and make it easy to grasp.

  The drive recorder 4 displays “recording time” and “number of recorded frames” in red in the “recording time” and “number of recorded frames” in the monitoring recording setting in the monitoring recording mode. As a result, the user sets one of “recording time” and “number of recorded frames” to be prioritized, and then sets either of “recording time” and “number of recorded frames” as a recordable option. Can do. Further, the drive recorder 4 determines whether or not the position information output from the GPS sensor is included in the “monitoring my area” in the transition state to the monitoring recording mode. When it is determined that the location information is included in “Monitoring My Area” and “Monitoring Recording Setting” is “Automatic”, the recording conditions set in “Monitoring My Area” are used as the recording conditions for monitoring recording. Execute the process. Similarly, in the state of transition to the monitoring recording mode, when it is determined that the position information is included in the “monitoring my cancel area”, “monitoring recording setting” is “automatic”, and the “REC” button is pressed. The subsequent processing is executed with the recording condition set in the “monitoring my cancel area” as the recording condition of the monitoring recording. Thereby, the user can operate the drive recorder 4 without the trouble of setting many times. Further, even if the position information does not match the position stored in the non-volatile storage unit, the drive recorder 4 is “monitoring my area” if it is “monitoring my area” and “monitoring my cancel area”. The shooting condition associated with the “monitoring my cancel area” can be set as the current shooting condition.

  The drive recorder 4 can reliably transmit the recording data recorded constantly by receiving power from the monitoring battery 3 after stopping the engine. When the ACC power is on, the image time relative to the transmission time can be lengthened by reducing the data amount per unit time of the recorded data.

  There are many cases where electrical components equipped with a function for receiving radio waves retrofitted to vehicles and reception antennas are installed especially on the dashboard or on the windshield, but the monitoring battery 3 is installed under the seat. Therefore, the influence of noise from the charge / discharge control unit 31, the DC-DC converter 32, the CPU 33, etc. on these electrical components and antennas can be greatly suppressed.

  Since one I frame is included in one communication unit of communication data, transmission data can be reproduced at a transmission destination to which transmission data is transmitted. The image can be confirmed using the transmission data as a video. When one communication unit of communication data is 1/3 s, an image can be confirmed at least every 1/3 s. For example, if the communication data is an image of an accident at the time of a collision, the video at the time of the accident can be reliably confirmed at the transmission destination. In the communication process, even when the mobile communication interface 52 cannot transmit the communication data, the SD card interface 47 reads the communication data that could not be transmitted from either one of the SD cards 61 and 62 that is not the storage destination. Thus, the mobile communication interface 52 can transmit. At the transmission destination to which the communication data is transmitted, the communication data can be acquired while the engine is ON. By switching the storage destination between the SD cards 61 and 62 and reading from either one of the SD cards 61 and 62 that are not storage destinations, the SD card interface 47 can easily read communication data.

<Modification>
In addition, although the said embodiment is a desirable form for this invention, it cannot be overemphasized that various improvement and change are possible within the range which does not deviate from the meaning of this invention.
For example, the “recording resolution” option value in the “monitoring recording setting” may be set lower than the “recording resolution” option value in the constant recording setting. Further, the value of the “recording frame number” option in the “monitoring recording setting” may be set lower than the value of the “recording frame number” option in the constant recording setting. In addition, the initial values of the options for “recording resolution” and “number of recorded frames” in “monitoring recording setting” and “always recording” setting are clearly displayed, and “recording resolution” and “recording” in “monitoring recording setting” are displayed. A configuration may be adopted in which the initial value of “frame number” is set lower than the initial value in the constant recording setting. In surveillance recording, the vehicle often does not move, so even if the frame rate and resolution are reduced, moving objects outside the vehicle can be captured. Also, event recording can be performed by setting, so that an event is recorded when an event occurs. Thereby, it is possible to save the recording condition in the monitoring recording. Since the amount of power supplied by the internal battery 34 is reduced, the internal battery 34 can be extended.

  Moreover, although the monitoring battery 3 demonstrated having received electric power supply of ACC power supply via the power cable 11 connected to the cigar socket of a vehicle, it is not limited to this. The power supply cable 11 may be directly connected to the ACC power supply, and the monitoring battery 3 may be supplied with power from the ACC power supply. The output terminal 11a and the input connector 3a have been described as miniUSB connectors, but may be USB connectors other than miniUSB. In addition, the input / output connector 3b and the first terminal 12a have been described as being 10-pin connectors. Moreover, although it has been described that the DIP switch DIPSW 36 includes three switches, the number of switches is not limited.

  Moreover, although the monitoring battery 3 demonstrated supplying electric power from the ACC power supply via the power cable 11, it is not limited to this. A configuration may be adopted in which a mobile battery is connected.

  In addition, although it has been described that the monitoring battery 3 outputs a signal indicating the remaining battery capacity of the internal battery 34 every 1 s, the time is not limited to 1 s but may be 1 minute or 3 minutes.

  Further, it has been described that the CPU 33 transmits a battery switching signal to the drive recorder 4 when the power supply source is switched to the internal battery 34. As described above, when there is a change in the power supply state from the ACC power supply, a signal to that effect may be transmitted to the drive recorder 4. Like the interval, it may be transmitted to the drive recorder 4 at predetermined time intervals.

  Further, it has been described that the drive recorder 4 determines whether to shift to the monitoring recording mode or to turn off the power of the drive recorder 4 when receiving the battery switching signal from the monitoring battery 3 in the constant recording mode. Instead, it may be determined based on a plurality of battery switching signals. For example, in the continuous recording mode, it may be determined whether to shift to the monitoring recording mode when the battery switching signal is continuously received a plurality of times. In this way, it is possible to prevent the continuous recording mode and the monitoring recording mode from being switched when the power supply from the ACC power supply is interrupted for a moment and then returned to the monitoring battery 3. Similarly, it may be determined based on a plurality of vehicle switching signals from the monitoring battery 3 whether to shift to the constant recording mode.

  In addition, when the vehicle switching signal is received from the monitoring battery 3 and continuous recording is possible, the drive recorder 4 has been described as shifting from the monitoring recording mode to the continuous recording mode and starting the continuous recording. You may make it transfer to recording mode.

  As a configuration to be performed by resetting, the drive recorder 4 itself may perform the reset process. However, the drive recorder 4 transmits an instruction signal for turning off the power supply for a predetermined time to the monitoring battery 3, and the monitoring battery When 3 receives this signal, the power supply to the drive recorder 4 is preferably stopped after a predetermined time and then the power supply is resumed. In this way, switching from the monitoring recording mode to the constant recording mode can be performed by reliably resetting the power off, which increases the possibility of more reliably recording the situation such as an accident such as constant recording. it can. For example, when shifting from monitoring recording to continuous recording, the output from the monitoring battery 3 is turned off for a predetermined time so that a hard reset of the drive recorder 4 is executed, so that continuous recording can be started reliably and normally. Become.

  In order to reset the drive recorder 4, the monitoring battery 3 stops supplying power to the drive recorder 4 for a predetermined time, for example, after the monitoring battery 3 stops supplying power, the drive recorder 4 is surely turned off. It is better to set the time longer than possible. For example, when the drive recorder is configured to include a supercapacitor in addition to the configuration described for the drive recorder 4, it may be longer than the maximum time required to close a file using power from the supercapacitor or the like. . For example, it may be about 3 seconds. The supercapacitor is charged while the drive recorder is supplied with power, and discharged while the drive recorder is not supplied with power. “Close file” means to complete writing of data to, for example, an SD card.

  However, after the user turns off the ACC power source of the vehicle for parking, for example, there is a case where the ACC power source of the vehicle is turned on and turned off again for operation when the electric mirror is retracted or the window is forgotten to be closed. . In this case, the ACC power supply is repeatedly turned off, on, and off from the on state. If the second turn-off timing is within the period in which the monitoring battery 3 stops supplying power to the drive recorder, various problems may occur such as the monitoring recording cannot be continued. This is because the ACC power supply may be turned off when the power supply is resumed after the monitoring battery 3 has stopped supplying power for a predetermined time in order to shift to continual recording. Therefore, the predetermined time is a time that can be surely turned off after power supply to the drive recorder is stopped, and is preferably as short as possible. For example, it may be about 1.5 seconds. Thus, by shortening the off period of the monitoring battery 3 from 3 seconds to 1.5 seconds, the probability that the period when the power supply to the drive recorder is stopped and the timing when the ACC power supply of the vehicle is turned off is reduced. be able to. In addition, this measure can shorten the non-recording period from the monitoring recording when the ACC power is turned on to the normal recording start of the normal vehicle.

  Further, as described above, since the inventors have discovered that the ACC power supply of the vehicle may be repeatedly turned off, turned on, and turned off, the following configuration may be adopted. When the CPU 33 switches the power supply source to the internal battery 34, the CPU 33 does not immediately transmit the battery switching signal to the drive recorder 4, but during an assumed predetermined time when such ACC power is turned on for a short time. The battery switching signal may be transmitted to the drive recorder after the predetermined time has elapsed on condition that the ACC power supply of the vehicle continues to be off. For example, when the power supply from the ACC power supply of the vehicle is turned off, the battery switching signal is transmitted to the drive recorder when the power supply from the ACC power supply is off for a predetermined time, for example, for 20 seconds. It is good to do.

  In addition, after the power of the drive recorder is turned on, the control unit performs various initialization processes, etc., and then starts continuous recording. Cost. Further, depending on the configuration of the drive recorder, there is also a design designed to start recording in the constant recording mode first. Therefore, the monitoring battery 3 may transmit a signal indicating whether or not power is supplied from the ACC power source to the drive recorder at a predetermined time interval. Regardless of whether or not power is supplied from the ACC power source of the vehicle, a signal indicating that power is supplied from the vehicle may be output to the drive recorder. For example, the predetermined time may be about 10 seconds.

  Further, the drive recorder 4 has been described as transmitting a signal for instructing a specified time for a specified time when receiving a battery switching signal from the monitoring battery 3, but the present invention is not limited to this. The drive recorder 4 may be configured to transmit a signal for instructing the monitoring battery 3 to stop power supply after the lapse of a specified time.

  In addition, it has been described that the drive recorder 4 transmits a signal for instructing a specified time when the battery switching signal is received from the monitoring battery 3, but the timing for transmitting the signal for instructing the specified time is not limited to this. When the power of the drive recorder 4 is turned on and the set value of the specified time is changed, it may be configured to transmit every predetermined time. The predetermined time is 1 s, 1 minute, 3 minutes, or the like.

  Further, the CPU 33 has been described as determining that a drive recorder having a communication function is not connected when it does not receive a signal asking about the remaining amount of the internal battery 34, but the received signal is not limited to a signal asking about the remaining amount. A signal for instructing a specified time may be used. Further, the switch provided in the DIP switch DIPSW 36 may be configured to indicate whether or not a drive recorder having a communication function is connected. In this case, when the corresponding switch is OFF, it is configured to indicate that a drive recorder having a communication function is not connected.

  Moreover, although the control part demonstrated displaying the screens Sa14-Sa17 and receiving the setting of recording conditions, it is not limited to this. A configuration having a function of automatically determining the longest recordable time by giving priority to the frame rate may be adopted. When the control unit receives a change in the setting value of the “number of recorded frames” on the screen Sa20 transitioned from the screen Sa16, the control unit calculates “usable time” based on the setting value of the “number of recorded frames”. The longest “recording time” option below the calculated “usable time” is determined as the set value of “recording time”. Or it is good also as a structure which has a function which gives priority to resolution and determines automatically the longest time which can be recorded.

  Further, after shifting to the “monitoring recording mode”, the control unit determines that the remaining amount of the SD card is not enough, and when “monitoring recording overwriting” is set to “OFF”, the screen Sa6 is displayed. It is not limited to this. In this case, if there is no remaining SD card, monitoring recording cannot be performed, so a sound and display may be notified, and a screen for selecting whether to delete monitoring recording or not may be displayed. Here, the monitoring recording is recording data recorded by monitoring recording.

  Further, although it has been described that when the battery switching signal is received from the monitoring battery 3 in the constant recording mode, the screen Sa1 or the like is displayed according to the setting, the present invention is not limited to this. It is also possible to adopt a configuration in which a transition to the minimum necessary setting screen is automatically made when the engine is turned off.

  Moreover, although the monitoring battery 3 demonstrated that the setting value transmitted by the serial communication from the drive recorder 4 was made into regulation time, it is not limited to this. Instead of serial communication, a 1-bit Hi / Low signal may be received, and a time corresponding to the Hi / Low signal may be set as a set value. Specifically, the monitoring battery 3 receives a command indicating a specified time and a Hi or Low signal. The monitoring battery 3 stores in advance a time corresponding to 3 hours when the signal is Hi and 6 hours when the signal is Hi. The monitoring battery 3 sets the time corresponding to Hi / Low of the signal to a specified time. The signal is not limited to 1 bit and may be 2 bits or more.

  Further, although the drive recorder 4 has been described as monitoring recording according to the recording condition of the set “monitoring my area”, the present invention is not limited to this. The drive recorder 4 may have a function of determining a recording condition for each “monitoring my area” that is a plurality of parking areas. The recording conditions are necessary / unnecessary for monitoring recording (parking monitoring), frame rate, recording time, and the like.

  In addition, the control unit has been described as storing JPEG format image data in the RAM, but the format is not limited. The MP4 format, the MP2 format, the H dot 264 format, and the H dot 265 format may be used.

  Further, although the control unit has been described as transmitting the recording data at the bit rate corresponding to the communication speed, the bit rate of the recording data to be transmitted is not limited to this. For example, when the communication speed is 100 Mbps, the transmission time may be long, but the data may be transmitted as 10 Mbps data.

  In addition, in the setting of monitoring recording in the monitoring recording mode, “total capacity in folder” may be added to the item “recording time”. “Full capacity in folder” indicates that monitoring recording is executed until the remaining capacity of the SD card runs out. If “recording time” is set to “full capacity in folder”, the option is not displayed in red.

  Further, although it has been described that the frame rate in event recording is about 30 fps and details are recorded with fine resolution, the event recording frame rate in monitoring recording may be lowered to make the resolution coarse. When a large vehicle passes, there is a case where the vibration is large and the event is recorded. In places where large vehicles pass, it is expected that there are many cases where people who harm vehicles do not pass. For this reason, in event recording in monitoring recording, it may be considered safe and the resolution may be roughened by lowering the frame rate.

  In addition, when the “SD” button or the “MENU” button is not operated within a predetermined time after the screen Sa6 is displayed, it has been described that no operation is timed out. When only recording is performed and there is no remaining capacity, recording is not possible, so the user may be notified with sound and display, and a screen for selecting whether to delete the monitoring recording or not may be displayed.

  Further, it has been described that the control unit shifts to the monitoring recording mode when it is determined that the condition for shifting to the monitoring recording mode is satisfied. Although it has been described that there are “My area”, “My cancellation area”, and the like as the items of the transition condition, “Time” may be added to the items. It may be configured to determine whether or not to shift to the monitoring recording mode from the set “time” and time. Thereby, the user can perform monitoring recording only at night in, for example, “My Area”. In addition to “My Area”, for example, it may be configured to determine whether or not to shift to the monitoring recording mode only by “Time”. For example, when recording from about 4 o'clock in the morning to about 6 o'clock, when the most desired time (5 o'clock in the morning) is input, the recording is performed so that the time is always included. When the remaining battery capacity or SD card capacity is insufficient, it is possible to select whether to give priority to the front side of the time, or give priority to the rear side. Allocate the recording time zone to the priority setting. Thereby, the user can know whether it is a stray cat or a crow that is ruining the garbage in the garbage storage area in front of the car in the morning.

  Further, in the setting of “registration execution” of “monitoring my area”, it has been described that the point registration is performed based on the position information from the GPS sensor. However, the present invention is not limited to this, and a map is displayed on the display 41 and the map is displayed to the user. It is good also as a structure which designates the upper position and registers the position on a map.

  Further, in the case of surveillance recording, for example, in the case of a video that does not change at all using motion detect, the frame rate may be automatically reduced. Further, the recording may be performed by increasing the frame rate from several seconds before the change.

  Also, in the monitoring recording, an event occurs when the door is opened and closed. It has been described that the event recording is not performed for 3 minutes from the start of the monitoring recording. It is also good. In this way, a portion where the event recording due to the acceleration detected by the G sensor and the door recording overlap can be excluded based on the time when the recorded data is confirmed later.

  In addition, after the opening screen is displayed, it has been explained that the screen changes to a screen that displays the message “There was an event recording during monitoring recording”. However, event recording is not possible for several seconds after the engine is turned off However, it may be configured not to notify that an event has occurred during the monitoring function when the engine is ON.

  In addition, the calculation method of “usable time” displayed as “monitoring recording time” on the screen Sa4 in the monitoring recording mode is not limited to the above. Instead of the drive recorder 4, the monitoring battery 3 may be configured to calculate the supplyable time based on the current energized, that is, the consumption current of the drive recorder 4. Alternatively, the monitoring battery 3 may be configured to calculate the supplyable time from the percentage of the remaining battery capacity and a predetermined current value that is set in advance. Alternatively, the monitoring battery 3 may be configured to calculate the supplyable time based on the percentage of the remaining battery capacity and the current value determined from the type of the drive recorder 4 by communication. The internal battery 34 may transmit the calculated supply available time to the drive recorder 4 and the control unit may display the received supply available time to the right of “monitoring recording time:”.

Moreover, although the above-mentioned structure is desirable for the specification of the drive recorder 4, it is not limited to this.
Although the drive recorder 4 has been described as including a camera, a camera unit including a camera and a main body including a control unit may be configured separately. In this case, the camera unit is installed on a windshield, for example, and the main body is installed on a dashboard, for example.

  In addition, the drive recorder 4 has been described as including a camera, but may be configured to include two cameras. In this case, two signals from the camera may be combined into one signal and stored. Specifically, the screen is divided into, for example, left and right, and signal processing is performed so that each is assigned to data captured by the two cameras. Combines two signals from the camera into one image. Thereby, the data amount of the recording data can be reduced, and in particular, when transmitting, the time of recording data that can be transmitted per unit time can be lengthened. Further, the number of divisions is not limited to two and may be two or more.

  Moreover, although the display 41 was demonstrated as LCD, it is not limited to this, A touch panel may be sufficient. Alternatively, a configuration without a display may be employed. If the product does not have a display, the user writes the setting in a recording medium such as an SD card, and inserts the SD card in which the setting is written into the drive recorder. The drive recorder reads and operates the SD card. For example, the setting written in the SD card may be stored in the non-volatile storage unit to operate, or the setting stored in the SD card may be appropriately stored without being stored in the non-volatile storage unit. It may be configured to read and operate.

  Further, the luminance of the indicator 35 may be variable between daytime and nighttime. When moving to event recording during monitoring recording, it is displayed with bright brightness in the daytime even at night.

  Although the drive recorder 4 has been described as having a communication function, the drive recorder 4 may be configured to have no communication function. In this case, it is not possible to set a specified time for continuing power supply after the supply of the ACC power supply of the monitoring battery 3 is cut off. Power can be supplied only for hours.

  In addition, although the monitoring battery 3 is described to output for a specified time, the entire remaining battery capacity may be supplied.

  Further, for example, the camera provided may be configured to move 360 degrees. In this way, it is possible to monitor the entire surroundings of the vehicle, so that monitoring can be strengthened particularly in the monitoring recording mode. Further, for example, the drive recorder may have a LoRa (Long Range) method capable of wireless communication, and may be configured to be operated with an attached remote controller capable of wireless communication. In this way, the user who has the remote control at a remote location can turn on / off the monitoring recording, periodically transmit the recording time, change the recording setting, report the event occurrence, transfer the still image when the event occurs, and the remote control Can be stored inside. Further, for example, if the drive recorder has a function capable of Wi-Fi communication, it can communicate with a communication terminal such as a smartphone. The recording data of event recording may be transferred within a range where Wi-Fi reaches.

  Moreover, although the control part with which the drive recorder 4 was provided was provided with CPU, ROM, RAM, a non-volatile memory | storage part, etc., it is not limited to this. For example, a PLD (Programmable Logic Device) or the like may be provided to operate in cooperation.

  Moreover, although the drive recorder installed in a vehicle was illustrated as in-vehicle equipment, it is not limited to this, You may install in a forklift. Since forklifts are often used for business purposes, it can be expected that an environment in which Wi-Fi can be used in an operating area of the forklift can be established. In this case, it is preferable that data transfer during traveling of the forklift is configured to use Wi-Fi.

  The data transfer method is not limited to the above. In the above description, after the ACC power supply is turned off, the CPU reads the recorded data recorded in the RAM, compresses it, and transmits it. However, the present invention is not limited to this, and the recording data stored in the SD card may be read and transmitted. Alternatively, the transmission method may be different for recording data for event recording and recording data for constant recording. For example, the recording data of event recording to be transmitted may be read from the RAM and transmitted. In the RAM, recorded data that is more beautiful than recorded data stored in the SD card is stored in the playback image before being compressed for transmission. On the other hand, recording data for continuous recording may be read from the SD card and transmitted. In event recording, for example, accidents and the like are often recorded, so the details of the accident may be confirmed if the image is clearer than the recording data stored in the SD card. Further, after the ACC power is turned off, all recorded data including data already transmitted during traveling may be transmitted at a uniform bit rate so that a uniform image is obtained. Further, time and position information may be transmitted instead of the recording data of event recording. Moreover, it is good also as a structure which transmits the video recording data of event recording previously after parking. Moreover, it is good also as a structure which transmits the video recording data of monitoring video recording. Moreover, it is good also as a structure which transmits the video recording data of parking monitoring.

  The drive recorder 4 may have a function of outputting an instruction to change the orientation of the camera provided. For example, if the trash storage is not directly in front of the parking lot but diagonally to the right, in order to take the trash storage, the drive recorder needs to be redirected diagonally forward to the right, but the user must change the direction of the camera. There is a risk of forgetting. Therefore, when the engine is turned off (when turned on) or according to the position information measured by the GPS sensor, it may be notified by voice or the like “Please check the direction of the drive recorder”. The direction may be registered and the direction may be notified, or a voice memo may be recorded and the voice memo may be reproduced. Furthermore, it is good also as a structure which moves the direction of a camera automatically with a motor.

  Moreover, although drive recorder 4 demonstrated that event recording was performed according to a predetermined trigger, the trigger in monitoring recording mode is not limited above, It is good also as a structure which records an event by using operation | movement of the incidental facilities of a parking lot as a trigger. Robots and parking lots may harm the vehicle. Since the operation of the parking lot is related to the movement of another person, the event recording may be performed by using the operation of the incidental facilities of the parking lot as a trigger. In a gate-type parking lot, a gate opening / closing signal is received and an event is recorded as a trigger. In a flap-type parking lot where a flap installed on the ground contacts under the vehicle body, a flap raising / lowering signal is received and an event is recorded as a trigger. In the case of the mechanical multi-story parking type, it is preferable to record an event with a signal corresponding to the lateral movement and vertical movement of the bogie of the vehicle body using a G sensor. In this case, it is preferable to set a threshold value to such an extent that acceleration at a level generated by standing is detected as an event.

  In addition, the drive recorder 4 has been described that when the battery switching signal is received in the constant recording mode, the drive recorder 4 shifts to the monitoring recording mode according to the setting. However, the present invention is not limited to this. Moreover, although drive recorder 4 demonstrated performing event recording according to a predetermined trigger, it is not limited to this. If you park in the summer, the inside of the car will be hot, so you may be able to open a little over the window remotely. For this reason, the drive recorder 4 may be configured to shift to the event recording or monitoring recording mode using the time when the window is open as a trigger and to perform monitoring recording. In addition, it is good to make a window into the extent which a hand cannot enter.

  Further, in the drive recorder 4, when the control unit determines that the SD card remaining amount is sufficient, the control unit determines that the remaining battery amount is not enough, and "monitoring recording overwrite" is set to "ON" Although the screen Sa5 (FIG. 5) is displayed and the screen Sa3 is transitioned and the power is turned off as the remaining battery level decreases, the present invention is not limited to this. If the internal battery 34 is about to run out during monitoring recording, the remote controller having the function of starting the engine of the vehicle is notified, and the engine can be started so that the vehicle can generate power and continue recording. May be. Further, when the internal battery 34 is charged to some extent, the engine may be turned off again. A configuration may be adopted in which recording is continued or an inquiry instruction is displayed on the remote controller when a predetermined time is continued, and when a continuation instruction is received.

  In addition, the drive recorder 4 has been described that when it receives a battery switching signal in the constant recording mode, the drive recorder 4 shifts to the monitoring recording mode and starts monitoring recording according to the setting. However, the present invention is not limited to this. Moreover, although drive recorder 4 demonstrated performing event recording according to a predetermined trigger, it is not limited to this. The drive recorder 4 may be configured to have a monitoring recording or monitoring recording function triggered by the approach of the drone. Thereby, a drone falls to a parking lot and a contact accident with a vehicle can be recorded. The approach of the drone may be detected by, for example, detecting a radio wave emitted by the drone or recognizing an image.

  In addition, the drive recorder 4 has been described that when the battery switching signal is received in the constant recording mode, the drive recorder 4 shifts to the monitoring recording mode according to the setting. However, the present invention is not limited to this. It may be configured to automatically record video when the vehicle is parked in a high-risk area in conjunction with navigation map data. When the vehicle position is in an area with a high degree of danger, it may be configured to shift to the monitoring recording mode. Alternatively, the recording conditions may be higher than usual. Here, to make the recording condition higher than normal is to increase the “recording frame number” of the recording condition and record finely. The high risk area is, for example, a high-theft zone, a high-crime zone, or the like, for example, information published on the website of the Metropolitan Police Department.

  In addition, the drive recorder 4 has been described that when the battery switching signal is received in the constant recording mode, the drive recorder 4 shifts to the monitoring recording mode according to the setting. However, the present invention is not limited to this. Record when parking while EV charging. Alternatively, the recording condition is set to a higher level than usual. In recent years, EV chargers have been established in commercial facilities and the like. Recording may be effective because it may be easily tampered with during EV charging. It may be determined in the area of the EV station of the map data, or may be determined by acquiring the charging state of the vehicle from OBD (On-board diagnostics) or the like.

  The drive recorder 4 may be configured to have a function of stopping the recording of monitoring recording when the amount of light cannot be captured such as at midnight. Controlling the power supply from the battery based on brightness determination by an optical sensor different from the image sensor provided in the camera is good because power can be saved.

  In addition, the drive recorder 4 has been described that when the battery switching signal is received in the constant recording mode, the monitor recording mode is started and monitoring recording is started according to the setting, and when the monitoring recording time expires, the power is turned off. It is not limited to this. Even if the drive recorder 4 is configured to have a function of stopping monitoring recording when the amount of packets flowing through the OBD CAN (Controller Area Network) is low and monitoring recording when the amount of packets is large. good. It is highly possible that a situation in which a large number of packets flow even though the engine is turned off is a situation in which the vehicle sensor detects any movement around the vehicle, so recording is effective.

  In the description of the screen Sb25 (FIG. 14), when the “OK” button is pressed, the control unit displays the screen Sb252 and displays the position information output from the GPS sensor as the center position of the “monitoring my area”. As described above, it is recorded in the nonvolatile storage unit. When the position registered as “monitoring my area” and “monitoring my canceling area” is an indoor parking lot, there are problems that it is difficult to obtain the position by the GPS sensor or the position accuracy is low. Therefore, for example, the position where the positioning was performed retroactively from the point of time when the registration operation was performed, or the position where the positioning was performed with an accuracy of a predetermined level or higher (may be determined based on the positioning accuracy information of GPS). It should be the location to register. For example, position information (and positioning accuracy information) is acquired at a predetermined time interval (for example, 1 second), the position information is stored as a position history, and positioning can be performed retrospectively at the time of registration. A position or a position that has been measured with a predetermined accuracy or higher may be set as a registered position.

  The present invention is not limited to the above-described embodiment, and various modifications can be made. Next, a monitoring battery according to Modification 1 which is a modification of the monitoring battery 3 will be described with reference to FIGS. As shown in FIG. 24, the monitoring battery according to the modified example 1 includes an input connector into which an input cord of the monitoring battery is inserted, an input / output connector into which the output cord is inserted, a USB Type A connector, a dip on the front of the mechanism case of the monitoring battery. A switch and a plurality of LEDs are provided. Here, the input code corresponds to the power cable 11 in the monitoring battery 3. The output code corresponds to the cable 12 in the monitoring battery 3. Although it has been described that the power cable 11 of the monitoring battery 3 includes a cigar plug at one end, it may be configured to include a red cord connected to the accessory power source and a black cord connected to a metal part of the vehicle. The accessory power supply is an ACC power supply for a vehicle that is turned ON / OFF in conjunction with the engine key. The USB Type A connector is connected to a commercially available USB cable or the like and charges the connected smartphone. Hereinafter, the ACC power supply may be referred to as an accessory power supply.

  The dip switch DIPSW 36 of the monitoring battery 3 has been described as including three switches. However, as illustrated in FIG. 25, the monitoring battery according to the first modification includes four dip switches. Set the specified time to 0.5 hour, 1 hour, 2 hours, 3 hours, 4 hours, 6 hours, 12 hours by the combination of ON / OFF of 4 dip switches, or the specified time by dip switch Set not to set. In the description of the DIP switch in FIG. 25, “up / down” indicates ON / OFF of the DIP switch.

  As shown in FIG. 26, the indicator of the monitoring battery according to the first modification includes six LEDs. The six LEDs are an LED that is lit when power is supplied from the ACC power source to the monitoring battery, an LED that is lit while the built-in battery is being charged, and four LEDs that are lit according to the remaining amount of the built-in battery. . It should be noted that the internal battery of the monitoring battery is configured to be replaceable when the life is reduced. Also, the monitoring battery can be used in places where it may interfere with operation and air bag operation, where it receives hot air such as air conditioners and heaters, where it is exposed to direct sunlight, unstable places, biting of wiring, and friction of coating. Do not install near a place where there is a possibility of disconnection or short circuit, or near electrical equipment (including antennas) of the vehicle.

  Next, a monitoring battery according to Modification 2 which is a modification of the monitoring battery 3 will be described with reference to FIGS. As shown in FIG. 27, eight dip switches, power switches, and display LEDs are provided on the plane of the mechanism case of the monitoring battery according to the second modification, input terminals are provided on the left side, and output cables are provided on the front. Here, the input terminal corresponds to the input connector 3 a in the monitoring battery 3. The output cable corresponds to the cable 12 in the monitoring battery 3. The power switch is a switch for switching ON / OFF of the power supply of the monitoring battery. When the power switch is OFF, power input to the monitoring battery and power output from the monitoring battery are blocked. Thereby, the user can remove the monitoring battery safely. The dip switch is installed closer to the bottom surface than the power switch.

  As shown in FIG. 28, the input cord connected to the input terminal includes a red cord connected to the battery power source of the vehicle, a yellow cord connected to the accessory power source, and a black cord connected to a metal part of the vehicle. Have The input code corresponds to the power cable 11 in the monitoring battery 3. As described above, the monitoring battery may be supplied with power from the battery power supply of the vehicle that is constantly supplied regardless of whether the engine is turned on or off, separately from the accessory power supply. You may make it operate | move by receiving electric power supply from. As shown in FIG. 29, the monitoring battery according to the second modification includes an LED that is lit when the engine is on and during operation of the monitoring battery.

  The monitoring battery according to the modified example 2 monitors the power source of the battery power source of the vehicle, and stops power output from the monitoring battery when the voltage becomes equal to or lower than a set voltage (hereinafter referred to as a detection voltage). In addition, after the vehicle engine is turned off, power is output for a specified time (hereinafter referred to as an off timer) in the same manner as the monitoring battery 3. As shown in FIG. 30, the detection voltage may be switched between 12 V and 24 V by three dip switches. In order to cope with the case where the specification of the battery of the vehicle is 12V, any setting of 11.6V, 11.8V, 12V, 12.2V is accepted. Similarly, in order to deal with the case where the vehicle battery specification is 24V, settings of + 0.2V, ± 0V, -0.2V, and -0.4V are accepted for 24V. Here, with respect to the specifications of the vehicle battery, the monitoring battery can continue its output even when the vehicle battery is reduced by increasing the negative set value by two and one by the positive side. It's okay. As shown in FIG. 31, the setting of the off timer is accepted by three dip switches different from the setting of the detection voltage, similarly to the monitoring battery of the first modification. As shown in FIG. 30, of the eight dip switches arranged in a row, three are assigned to the detection voltage setting, three are assigned to the off timer setting, and two are not used. By arranging one not used between the three used for setting the detection voltage and the three used for setting the off-timer, setting errors by the user are suppressed.

  In the description of the method 4 of the data transfer method, the image data has been described as having a plurality of P frames for one I frame, but the image data may be configured not to have a P frame. Further, although it has been described that the communication compression unit 45 creates three I frames in 1 s, the number of frames is not limited. The number of I frames per 1 s may be less than 3 or 4 or more. It should be noted that the number of frames may be reduced in the case of a video with little motion, and the number of frames may be increased in the case of a video with heavy motion. Further, as described in the method 1 of the data transfer method, the communication compression unit 45 may be configured to change the frame rate, the number of I frames, and the compression rate of the image data in accordance with the communication speed. In addition, it has been described that the configuration of communication data is arranged in the order of I frame and audio data from the top, but the position of the audio data is not limited. It may be configured to be positioned before the I frame or after the P frame.

  Moreover, although it demonstrated that a serial number was provided with respect to each frame, as a structure which assigns a serial number with respect to the communication data of one communication unit arranged in a time series, and assigns a serial number to each frame within one communication unit. Also good. For example, the communication data of the first communication unit is number 1, the communication data of the first communication unit is number 2, the P frame of the communication data of the first communication unit is number 1, and the next P frame is The number 2 is used, and the second P frame of communication data of one communication unit is also number 1, and the next P frame is number 2. In this way, the frame can be specified by what number frame of communication data of one communication unit. The identifier to be given is not limited to a serial number, and any identifier that can be sorted may be used. For example, time and date may be used, and any serial number, time, and date may be combined.

  In step S5 of the communication process, it has been described that the I frame, the P frame, and the audio data for one section in which communication data could not be transmitted are stored in the SD cards 61 and 62. It is good also as a structure which memorize | stores the communication data of a communication unit in SD card 61,62. Further, when communication is recovered and transmission is performed again, a configuration in which communication data of one communication unit is transmitted may be used.

  In addition, during the regular recording period, the SD card interface 47 has been described as alternately switching the storage data write destination between the SD card 61 and the SD card 62, for example, every 10 s. Although it is not, it is preferable that the time is longer than the time required for shooting the communication data of one communication unit.

  Further, it has been described that all or part of the communication data written in the SD card 62 is read from the SD card 62 and transmitted because it could not be transmitted. In step S9 of the communication process, it has been described that the data that could not be transmitted is stored in the RAM. A configuration in which information associated with an identifier for identifying the card is stored in the RAM, and when communication becomes possible, the information is referred to and an SD card storing all or part of the communication data that could not be transmitted is identified. It is also good.

  In the description of FIG. 19 as another example of the drive recorder, it has been described that the communication compression unit 45 automatically varies the data capacity according to the current communication rate. Changing the transmission rate in real time according to the current communication rate is not limited to the compression rate, and the frame rate may be changed.

  Further, in another example of the drive recorder shown in FIG. 19, it has been described that two SD cards are inserted, but a configuration in which one SD card is inserted may be adopted. Also in this case, the drive recorder may be configured to write the recording data by dividing the storage area of the SD card into a storage area and a communication area.

  Also, as shown in FIG. 20, only one I frame may be included in one communication unit, but a plurality of I frames may be included. At this time, it is preferable to be able to specify which P frame group corresponds to which I frame. For example, the number of P frames for one I frame may be specified to be the same, or a serial number may be assigned to all the frames. When there are a plurality of I frames in one communication unit, the I frame group may be transmitted first and then the P frame group following the I frame group may be transmitted. A group of frames in an alternating order such as I frame, P frame,... May be used as one communication unit.

  The frame rate should be settable. For example, 1 fps, 5 fps, and 10 fps are preferable. It is preferable that the number of I frames included in one communication unit is changed according to the frame rate. The higher the frame rate, the better the number of I frames that can be placed in one communication unit.

  It is not limited to the configuration of the above embodiment, and the configuration of the above embodiment and the configuration of the above modification may be arbitrarily combined. Moreover, you may combine arbitrarily the one part structure of the said embodiment, and the one part structure of the said modification. In addition, a part of the configuration described in “Means for Solving the Problems”, a part of the configuration of the above embodiment, and a part of the configuration of the above modification may be arbitrarily combined.

1 System 3 Monitoring Battery 3a Input Connector 3b Input / Output Connector 4 Drive Recorder 4a Input / Output Connector 11 Power Cable 12 Cable 31 Charge / Discharge Control Unit 34 Internal Battery 33 CPU
35 Indicator 36 DIP switch DIPSW
47 SD card interface 52 Mobile communication interface

Claims (17)

An apparatus that intervenes between a vehicle and an in-vehicle device and supplies power to the in-vehicle device,
It is separate from the in-vehicle device,
Battery,
A charge / discharge control unit that is a control unit that controls charging to the battery and power feeding to the in-vehicle device, and
The charge / discharge control unit
When power is supplied from the vehicle, the vehicle is supplied with power to the vehicle-mounted device as a power supply source, and the battery is charged.
When the power supply from the vehicle is cut off, the power supply source for the in-vehicle device is switched from the vehicle to the battery, and the power supply to the in-vehicle device is continued for a predetermined period. The in-vehicle device is a drive recorder for photographing outside the vehicle,
The apparatus according to claim 1, wherein the apparatus has a size and a shape installed at a position where direct sunlight other than the engine room of the vehicle is blocked. The in-vehicle device does not include a battery, or includes a battery smaller than the battery, and is installed in a place where size and weight are limited,
The apparatus according to claim 1, wherein the apparatus is installed in a place where there are fewer restrictions than restrictions on size and weight of the in-vehicle device.   The apparatus according to any one of claims 1 to 3, wherein the apparatus has a size and a shape that are installed at a position where the living space of the vehicle is not compressed. A communication means for communicating with the in-vehicle device;
A control unit,
The controller is
When the charge / discharge control unit switches the power supply source to the in-vehicle device from the vehicle to the battery, the communication unit outputs a switching signal indicating that the power supply source is switched to the battery. The apparatus according to any one of claims 1 to 4. A communication means for communicating with the in-vehicle device;
A control unit,
When the power supply from the vehicle is resumed, the charge / discharge control unit switches the power supply source to the in-vehicle device from the battery to the vehicle,
The control unit switches the power supply source to the vehicle when the charge / discharge control unit switches the power supply source to the vehicle-mounted device from the battery to the vehicle during a period in which the power supply source to the vehicle-mounted device is the battery. 6. The apparatus according to claim 1, wherein a signal indicating that the signal has been received is output by the communication unit.   The in-vehicle device fed from the apparatus according to any one of claims 1 to 6, wherein the on-vehicle device operates during a period when power is supplied and stops when the power supply is stopped. An in-vehicle device fed from the device according to any one of claims 1 to 6, or an in-vehicle device according to claim 7,
A first continuous recording function that is a function of recording when receiving power from the vehicle;
A first event recording function that is a function of recording when a predetermined event occurs when receiving power from the vehicle;
A second continuous recording function which is a function of recording when receiving power from the battery;
A second event recording function which is a function of recording when a predetermined event occurs when receiving power from the battery;
A first setting function for setting the first constant function;
A second setting function for setting the second constant function;
An in-vehicle device comprising: a third setting function for setting the first event record setting and the second event record setting in common. An in-vehicle device fed from the device according to any one of claims 1 to 6, or an in-vehicle device according to claim 7 or claim 8,
Wireless communication function,
Creating means for creating communication data of one communication unit having a plurality of frames, which is transmitted by the wireless communication function, based on the video photographed by the photographing means;
An in-vehicle device comprising a reference frame that is a frame that can be reproduced independently in at least one of a plurality of frames included in communication data of one communication unit. An in-vehicle device fed from the device according to any one of claims 1 to 6, or an in-vehicle device according to any one of claims 7 to 9,
An in-vehicle device provided with a photographing means,
A switching function for switching a data writing destination based on video captured by the imaging unit between a plurality of recording media;
A wireless communication function for transmitting data based on the video,
If the data based on the video could not be transmitted by the wireless communication function,
The data based on the video that could not be transmitted is read out from the recording medium that stores the data based on the video that could not be transmitted during the period when the storage medium is not the write destination, and transmitted by the wireless communication function. In-vehicle equipment. A system comprising the device according to any one of claims 1 to 6 and the in-vehicle device according to claim 7,
The device is
A communication means for communicating with the in-vehicle device;
A control unit,
The controller is
When the charge / discharge control unit switches the power supply source to the in-vehicle device from the vehicle to the battery, a switching signal indicating that the power supply source has been switched to the battery is output by the communication unit,
The in-vehicle device is
It is a drive recorder that shoots outside the vehicle based on the shooting conditions,
Device communication means for communicating with the device;
In the first period in which the power supply source is the vehicle, the first condition is applied as the shooting condition,
In the second period in which the power supply source is the battery, a second condition that saves more power than the first condition is applied as the photographing condition.
When receiving the switching signal,
The system is characterized in that the photographing condition is switched from the first condition to the second condition and photographing is continued. A system comprising the device according to any one of claims 1 to 6 and the in-vehicle device according to claim 7,
The device is
A communication means for communicating with the in-vehicle device;
A control unit,
The controller is
A signal indicating the remaining amount of the battery, and
When the charge / discharge control unit switches the power supply source to the in-vehicle device from the vehicle to the battery, a switching signal indicating that the power supply source has been switched to the battery is output by the communication unit,
The in-vehicle device is
A drive recorder for shooting outside the vehicle based on shooting conditions including shooting time and frame rate,
Device communication means for communicating with the device;
Photographing means;
A storage medium for storing an image taken by the photographing means;
A user interface for accepting the setting of the shooting conditions,
When receiving a signal indicating the remaining amount of the battery and the switching signal,
The other of the shooting time and the frame rate is determined based on the remaining battery capacity and the remaining capacity of the recording medium and the received shooting time and the frame rate. system. A system comprising the device according to any one of claims 1 to 6 and the in-vehicle device according to claim 7,
The device is
A communication means for communicating with the in-vehicle device;
A control unit,
The controller is
When the charge / discharge control unit switches the power supply source to the in-vehicle device from the vehicle to the battery, a switching signal indicating that the power supply source has been switched to the battery is output by the communication unit,
The in-vehicle device is
It is a drive recorder that shoots outside the vehicle based on the shooting conditions,
Positioning means for positioning the position of the vehicle;
Device communication means for communicating with the device;
The storage means for storing the shooting conditions set by the user in association with the position,
When receiving the switching signal,
When the current position is within a predetermined area of the position stored in the storage unit, the photographing condition associated with the position is determined as the current photographing condition. A system comprising the device according to any one of claims 1 to 6 and the in-vehicle device according to claim 7,
The device is
A communication means for communicating with the in-vehicle device;
A control unit,
The controller is
When the charge / discharge control unit switches the power supply source to the in-vehicle device from the vehicle to the battery, a switching signal indicating that the power supply source has been switched to the battery is output by the communication unit,
The in-vehicle device is
A drive recorder that captures the outside of the vehicle based on imaging conditions in a first period in which the power supply source is the vehicle,
Device communication means for communicating with the device;
Photographing means;
Recording means for recording an image taken by the photographing means;
Transmission means for transmitting the image via a network,
When receiving the switching signal,
The system that transmits the image that could not be transmitted in the first period during a period in which the power supply source is the battery. A system comprising the device according to any one of claims 1 to 6 and the in-vehicle device according to claim 7,
The device is
A communication means for communicating with the in-vehicle device;
A control unit,
The controller is
When the charge / discharge control unit switches the power supply source to the in-vehicle device from the vehicle to the battery, a switching signal indicating that the power supply source has been switched to the battery is output by the communication unit,
The in-vehicle device is
A drive recorder that captures the outside of the vehicle based on imaging conditions in a first period in which the power supply source is the vehicle,
Photographing means;
Recording means for recording an image taken by the photographing means;
Transmission means for transmitting the image via a network,
In the first period, the image is transmitted at a lower bit rate,
When receiving the switching signal,
When the communication speed is faster than a reference value, the system transmits the image having a higher bit rate than the first period. A system comprising the device according to any one of claims 1 to 6 and the in-vehicle device according to claim 7,
The device is
A communication means for communicating with the in-vehicle device;
A control unit,
The controller is
When the charge / discharge control unit switches the power supply source to the in-vehicle device from the vehicle to the battery, a switching signal indicating that the power supply source has been switched to the battery is output by the communication unit,
The in-vehicle device is
A drive recorder that captures the outside of the vehicle based on imaging conditions in a first period in which the power supply source is the vehicle,
Photographing means;
Wireless communication function,
Creating means for creating communication data of one communication unit having a plurality of frames, which is transmitted by the wireless communication function based on the video photographed by the photographing means;
A system comprising: a reference frame that is a frame that can be reproduced independently in at least one of a plurality of frames included in communication data of one communication unit. A system comprising the device according to any one of claims 1 to 6 and the in-vehicle device according to claim 7,
The device is
A communication means for communicating with the in-vehicle device;
A control unit,
The controller is
When the charge / discharge control unit switches the power supply source to the in-vehicle device from the vehicle to the battery, a switching signal indicating that the power supply source has been switched to the battery is output by the communication unit,
The in-vehicle device is
A drive recorder that captures the outside of the vehicle based on imaging conditions in a first period in which the power supply source is the vehicle,
Photographing means;
A switching function for switching a data writing destination based on video captured by the imaging unit between a plurality of recording media;
A wireless communication function for transmitting data based on the video,
If the data based on the video could not be transmitted by the wireless communication function,
The data based on the video that could not be transmitted is read out from the recording medium that stores the data based on the video that could not be transmitted during the period when the storage medium is not the write destination, and transmitted by the wireless communication function. System.

Images