JP2023116493A - Device, in-vehicle equipment, and system - Google Patents

Abstract

To provide a device capable of supplying power to in-vehicle equipment in a good manner.SOLUTION: A charge/discharge control unit 31 controls a power supply path so that power is supplied from the ACC power source to an internal battery 34 and a DC-DC converter 32 while power is supplied from the ACC power source. This allows the internal battery 34 to be charged and the DC-DC converter 32 to supply voltage-converted power to a dashboard camera. When determining that the ACC power source is OFF, the charge/discharge control unit 31 discharges the internal battery 34 and controls the internal battery 34 to supply power to the DC-DC converter 32. This allows a monitoring battery 3 to continue supplying power to the dashboard camera even when the power supply from a vehicle is interrupted.SELECTED DRAWING: Figure 2

Description

TECHNICAL FIELD The present invention relates to devices, in-vehicle equipment, systems, and the like.

2. Description of the Related Art Conventionally, a device for supplying power to in-vehicle equipment is known (Patent Document 1). Patent Literature 1 describes a bracket that includes a solar cell and supplies electricity generated by the solar cell to in-vehicle equipment. The bracket described in Patent Document 1 is fixed on the dashboard. Moreover, in order for the solar cell to generate power, it must be placed in direct sunlight.

JP 2012-66744 A

As described above, the bracket of Patent Document 1 is fixed on the dashboard. Therefore, when the bracket is configured to include a storage battery, the storage battery is fixed at a position exposed to direct sunlight. However, since the temperature range in which storage batteries can be charged and discharged is limited, if the temperature rises due to exposure to direct sunlight, the upper limit of the temperature at which the storage battery can be charged and discharged will be exceeded, and the storage battery will supply power to in-vehicle equipment. It may not be possible.

The present application has been proposed in view of the above problems, and an object of the present invention is to provide a device or the like capable of satisfactorily supplying power to on-vehicle equipment.

(1) The device of the present invention is a device that is interposed between a vehicle and an on-vehicle device to supply power to the on-board device, and is separate from the on-board device. a charge/discharge control unit that is a control unit that controls power supply to the device, and the charge/discharge control unit supplies power to the on-vehicle device using the vehicle as a power supply source and charges the battery when power is supplied from the vehicle; When the power supply from the vehicle is interrupted, the power source for the onboard equipment is switched from the vehicle to the battery, and the power supply to the onboard equipment 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. When the power supply from the vehicle is cut off, for example, when the vehicle drive source stops, when the power supply from the vehicle battery whose charging is stopped due to the stop of the vehicle drive source is cut off, while the vehicle is stopped, It is good to assume that there is no one in the vehicle while it is parked. Even in such a case, the in-vehicle device can continue to operate by power supply from this device. In particular, in the case of the later-described configuration (7) in which the configuration of the in-vehicle device operates while the power is supplied and stops the operation when the power supply is stopped, the in-vehicle device stops the power supply after a predetermined period of time. Since the device stops operating, the vehicle-mounted device can be operated for a desired period of time. In addition, for example, in the case of a configuration in which the on-vehicle device operates by power supply from the vehicle battery while the vehicle driving source is stopped, the vehicle battery may run out. As a result, it is possible to make it difficult for the vehicle battery to run out even when the vehicle-mounted device is operated. It is possible to prevent a situation in which, for example, the starter motor of the engine cannot rotate and the engine cannot be started and the vehicle cannot be run due to the dead battery.

Furthermore, since it is a separate body, the device can be installed at a position different from the position of the in-vehicle device, and with configuration (2) described later, temperature rise can be suppressed, which is particularly good. 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 preferred because it has a wide chargeable temperature range and a wide dischargeable temperature range. A laser detector, a security device, or the like may be used as the in-vehicle device. A device that generates a large amount of internal heat may be, for example, a device that performs image processing, such as a drive recorder. Since the device is separate from the in-vehicle equipment, it can be made less susceptible to heat generation.

Moreover, it is preferable that the on-vehicle equipment is installed in a place where it receives heat from the outside, and the device is installed in a place where it is difficult to receive heat from the outside. The outside may be, for example, direct sunlight, an engine, or the like. The in-vehicle device can be installed in a position where it receives direct sunlight, and the device can be installed in a position where the direct sunlight is blocked. In particular, it is preferable that the in-vehicle device is installed in the vicinity of the glass between the outside and the inside of the vehicle, and the device is not installed in the vicinity of the glass. The in-vehicle device may be a device that is installed in the vehicle separately from the vehicle, as well as a device that is installed in the vehicle later.

(2) The in-vehicle device is a drive recorder that captures images of the outside of the vehicle.

A drive recorder is installed in the vicinity of the windshield, for example, in order to photograph the outside of the vehicle through the glass. However, the vicinity of the glass is also a place where the temperature is likely to rise due to direct sunlight. Therefore, the temperature of the battery can be prevented from rising by installing it in a place where the direct sunlight is blocked. In addition, by installing this device in a place other than the engine room where the vehicle drive source is housed, it is possible to reduce the influence of heat from the vehicle drive source. By making it difficult for the temperature of the battery to rise, it is possible to suppress the impossibility of charging and discharging due to the temperature rise, and it is possible to prevent the impossibility of supplying power to the vehicle-mounted device. The in-vehicle device can continue to operate even after power supply from the vehicle is cut off.

(3) In-vehicle equipment does not have a battery, or has a battery smaller than the battery, and is installed in a place with size and weight restrictions. should be installed in a place with few restrictions.

In this way, the device can be made large and heavy, and the capacity of the battery can be increased. The in-vehicle device can continue to operate for a long time even after the power supply from the vehicle is cut off. The in-vehicle device should be installed in a place where there is a size restriction when installing, for example, in a windshield where the installation range is stipulated by law. Also, the on-vehicle device should be installed in a position where it 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 dashboard.

(4) The size and shape should be such that they are installed at a position that does not impede the living space of the vehicle.

In this way, it is good because it does not hit people and does not get in the way during driving operations and getting in and out of the vehicle while riding in the vehicle. The inventors have found that the positions (2), (3), and (4) are preferably provided in the trunk room, under the dashboard, and especially under the seat.

(5) The device includes communication means for communicating with the in-vehicle device and a control unit, and the control unit switches the power source to the on-vehicle device from the vehicle to the battery when the charge/discharge control unit switches the power source to the on-vehicle device from the battery. A switching signal indicating that the battery has been switched (hereinafter referred to as a battery switching signal) may be output from the communication means.

In this way, the in-vehicle device can know that the power source has been switched to the battery. In particular, when combined with the configuration (11), which saves power when the power supply source is switched to the battery, the amount of power to be supplied is reduced, and the battery can be made to last longer, which is particularly good. The charging/discharging control section and the control section may be realized by one control means, or may be realized by separate control means.

(6) The device includes communication means for communicating with the in-vehicle device and a control unit, and the charge/discharge control unit switches the power supply source for the in-vehicle device from the battery to the vehicle when power supply from the vehicle is restarted. , the control unit outputs a signal ( hereinafter referred to as a vehicle switching signal) may be output by communication means.

In this way, the in-vehicle device can know that the power source has been switched to the vehicle again. In particular, when combined with the configuration of (11) in which the imaging conditions are switched depending on the power supply source, the imaging conditions can be switched in accordance with the switching of the power supply source 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 share one communication means and one control means, or separate communication means. , may be implemented by the control means.

(7) It is preferable that the in-vehicle device to which power is supplied from the apparatus operates while the power is supplied and stops when the power supply is stopped.

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

(8) The in-vehicle device has a first constant recording function that records when receiving power from the vehicle, and a recording function that records when a predetermined event occurs while receiving power from the vehicle. a first event recording function, which is a function to record events while receiving power from the battery; a second constant recording function, which is a function to record when power is being supplied from the battery; a second event recording function, which is a function to record when an event occurs, a first setting function for setting the first constant function, a second setting function for setting the second constant function, and a first event recording setting; and a third setting function for setting in common with the setting of the second event recording.

When setting, the user may feel annoyed if there are many settings, and it may be difficult to comprehend. By setting the setting as a third setting function for setting the first constant function setting, the second constant function setting, the first event recording setting, and the second event recording setting in common, the inconvenience felt by the user is eliminated. It is possible to reduce the ambiguity and make it easier to grasp. The on-board equipment can operate with optimal settings depending on the applied conditions.

Configurations other than (8) are 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 commonly setting the second constant recording setting and the second event recording setting, It is good as a structure provided with.

(9) The in-vehicle device has a wireless communication function, and a creating means for creating communication data of one communication unit having a plurality of frames to be transmitted by the wireless communication function based on the image captured by the imaging means, It is preferable that at least one of a plurality of frames included in communication data of one communication unit has a reference frame, which is a frame that can be reproduced independently.

In this way, as long as the reference frame of the communication data of one communication unit can be received, the video of the period of one communication unit included in the communication data of one communication unit can be reproduced alone. The image may be image information in which still image information is arranged in chronological order, for example, having information such as 30 frames per second. One communication unit may be a group of data divided based on, for example, time, number of frames, data capacity, or the like. The communication data of one communication unit may be, for example, data separated by a certain time, data up to a certain number of frames, or data exceeding a certain data capacity. The data length of communication data for one communication unit may be variable or fixed. Communication data of one communication unit may have a variable number of frames, but it is preferable to have a fixed number of frames. For example, the number of frames of communication data in one communication unit may be plural, and the number of reference frames in the plural frames may be plural, but it is particularly preferable to use one. However, for example, when communication data of one communication unit includes a plurality of reference frames, if only one reference frame among the plurality of reference frames can be received, nothing will occur during the period of one communication unit. It doesn't mean that the image doesn't come out. For example, a reproducing device comprising a receiving means for receiving communication data of one communication unit transmitted by an in-vehicle device, and a reproducing means for displaying an image on a display means based on the received communication data of one communication unit. It is good to set it as the structure provided. According to such a reproducing device, it is possible to reproduce video 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 repeat creation of the communication data for one communication unit by the creating means and transmission of the created communication data for one communication unit by the wireless communication function. In this way, when the photographing means continues photographing, continuous images can be transmitted. The creation of communication data for one communication unit and the transmission of the communication data by the wireless communication function may be performed as separate processes. For example, after creating 10 pieces of communication data for 1 communication unit and creating 10 pieces of communication data for 10 communication units, the communication data for 10 communication units may be transmitted 10 times for each 1 communication unit. However, if communication data for one communication unit is created, the created communication data for one communication unit may be transmitted. Also, one communication unit should be created based on the same standard for each repetition unit. The criteria may be based on, for example, the above-mentioned time, number of frames, data volume, etc., and a fixed quantity may be set for each repetition 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, it is better to use the following (9-3).

(9-2) It is preferable that the vehicle-mounted device stores the frame that could not be transmitted among the communication data of one communication unit, and transmits 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 assigned to a frame before transmission, and if transmission fails, the identifier of the frame that could not be transmitted is recorded to identify the frame that could not be transmitted. good. Also, an identifier such as a serial number is assigned to the communication data of one communication unit, and if transmission is not possible, the identifier of the communication data that could not be transmitted and the number of the frame that could not be transmitted are displayed. may be recorded to identify frames that could not be transmitted. Also, the identifier may be, for example, date, time, or the like. Among a plurality of frames included in communication data of one communication unit, the frame next to a certain frame may be used as difference data from the previous reference frame. However, it is better to use the following (9-3).

(9-3) If the vehicle-mounted device is configured such that, among the plurality of frames included in the communication data of one communication unit, the frame next to a certain frame is a differential frame that is differential data from the frame one frame before. good. For example, when a certain frame is used as a reference frame, the frame next to the certain frame is a differential frame with respect to the reference frame. For example, if a frame is a difference frame, the next frame after that frame will be the difference frame for the frame produced by the difference frame. In this way, the amount of communication data can be reduced more than when all frames are used as reference frames. Also, the frame next to the differential frame is preferably the differential frame. In particular, since the frame included in the communication data of one communication unit includes a reference frame as a certain frame, it is possible to independently reproduce the video of the period of the one communication unit and reduce the amount of data. If the in-vehicle device is a drive recorder that takes pictures of the outside of the car while driving, the whole frame changes rather than a fixed-point camera that takes a picture of a place with little change in the background. It is better to use the data of the difference from the previous frame rather than the data of the difference from the previous reference frame. Also, it is preferable that the reference frame is at the head of communication data of one communication unit.

(9-4) The in-vehicle device is an in-vehicle device having a photographing means and a sound collecting means, and has a wireless communication function, and a radio communication function for transmitting the video photographed by the photographing means and the sound collected by the sound collecting means to the radio communication function. creating means for creating one communication unit of communication data having a plurality of frames, which is transmitted by a communication unit, and the communication data of one communication unit includes, in order from the beginning, a reference frame that can be reproduced independently, audio data, and one It is preferable that the frames are arranged in the order of difference frames indicating the difference from the previous frame.

In this way, even if the communication is interrupted in the middle of transmitting the communication data of one communication unit, at least the still image based on the reference frame can be viewed at the destination. Subsequently, if the voice data can be received, the voice can be listened to. Subsequently, if up to the difference frame can be received, the moving image based on the difference frame can be viewed. The order of reception at the transmission destination is still image, sound, and moving image. If the communication data is, for example, a picture of an accident situation, the outline of the accident can first be seen from the still image. Subsequently, the situation of the accident can be known by voice. You can then watch the video to learn more about the accident. Even if the communication is interrupted in the middle of the voice data, the recipient can at least see the outline of the accident. It is preferable that the playback device further has a voice playback function and can play back the voice of the received communication data of one communication unit. According to such a reproducing device, it is possible to reproduce the sound based on the communication data of one communication unit transmitted by the in-vehicle device. The user can listen to the reproduced voice.

(10) The in-vehicle device is an in-vehicle device that includes a photographing means, and has a switching function for switching between a plurality of recording media to write data based on the image photographed by the photographing means, and a wireless device for transmitting the data based on the image. and a communication function, and if the video-based data cannot be transmitted by the wireless communication function, the recording medium storing the video-based data that could not be transmitted is sent to the recording medium during the period when the storage medium is not the write destination. It is preferable that the data based on the image that could not be transmitted is read and transmitted by the wireless communication function.

In this way, even if the wireless communication means fails to transmit video, the video for which transmission failed can be read from any of the recording media that is not the write destination and transmitted. In some cases, it is difficult to simultaneously write data to and read data from a recording medium. For example, when data based on video is written to a recording medium for recording, the period during which the data based on the video captured by the imaging means is stored in the storage medium and the data based on the video stored in the storage medium may overlap with the period during which the data is read for transmission. By switching the write destination among a plurality of storage media to create a period during which the storage medium storing the video-based data is not the write destination, the video-based data can be easily read. Although the number of storage media may be three or more, it is particularly preferable to use two. In addition, the data based on the video for recording and the data based on the video to be transmitted may be different data amounts, and the data amount of the data based on the video to be transmitted may be different from the data based on the video for recording. It is preferable to set the data amount to be smaller than the data amount of the data. When constantly writing data to a recording medium for recording, it is preferable to alternately switch between two recording media to write video-based data for recording. The data based on the image to be transmitted may be alternately written to the two recording media at all times, but the data based on the transmitted image may not be written to the recording medium. The recording medium for writing video-based data that could not be transmitted should be written to the recording medium on which the video-based data for recording is written at that time. Video-based data that could not be transmitted by the wireless communication function may be transmitted in units of one communication, or may be transmitted in units of frames. For example, an identifier such as a serial number is assigned to a frame before transmission, and if transmission fails, the identifier of the frame that could not be transmitted and the recording medium to which the frame is to be written can be recorded and transmitted. The storage medium that stores the missing frames may be specified. Also, a part of the storage area of the recording medium is divided in advance as an area for recording the data based on the video that could not be transmitted, and the data based on the video stored in that area of the storage medium that is not the write destination is read. Also good.

(10-1) The in-vehicle device is an in-vehicle device having a photographing means, and has a wireless communication function for transmitting data based on an image. The communication speed is preferably set to a speed that enables transmission in a time shorter than the time required for capturing data based on the video.

In this way, the vehicle-mounted device can transmit the data based on the stored video all at once. It is possible to shoot video-based data for a certain period of time, accumulate data based on the video for a certain period of time, and transmit the data in a shorter time than the time required for the shooting. For example, when data based on video for one communication unit is stored and transmitted, the data can be transmitted in a shorter time than the time taken to shoot one communication unit. The remaining time can be used to transmit data based on images that could not be transmitted. It can be transmitted in a shorter time than the actual time of the video. A space is created before the next one-communication-unit photographing starts. It is possible to read the data based on the image that could not be transmitted from the storage medium recording the data based on the image that could not be transmitted, and secure the time for transmission by the wireless communication function. In particular, the configuration (10-2) exhibits an excellent effect. In addition, as in (14), in the case of a configuration in which transmission is performed while the power source is the battery, (
If it is not like 10-1), if the communication speed is slow, it takes a very long time to transmit the data based on the image that could not be transmitted after the power source becomes the battery. In the configuration (10-1), the data based on the image that could not be transmitted is transmitted before the power source becomes the battery, so the time for transmission during the period when the power source is the battery can be shortened or eliminated. can.

(10-2) The in-vehicle device is an in-vehicle device having a photographing means, and has a switching function of switching between a plurality of recording media to write data based on the image photographed by the photographing means, and transmitting data based on the image. and a real-time transmission function that writes video-based data to a storage medium and transmits the video-based data in real time using the wireless communication function. If not, read the data based on the image that could not be transmitted from the recording medium storing the data based on the image that could not be transmitted while the storage medium is not the write destination, and transmit the data based on the image that could not be transmitted using the wireless communication function. It is good to say

In this way, when the data based on the image cannot be transmitted by the real-time transmission function, the storage medium storing the data based on the image that could not be transmitted is not the write destination at substantially the same time as the data based on the image is transmitted in real time. During the period, the data based on the image that could not be transmitted can be read and the data based on the image that could not be transmitted can be transmitted. In particular, it is preferable to always write video-based data for recording. As the data based on the video for recording and the data based on the video to be transmitted, the data volume of the video-based data for recording is larger than the data volume of the video-based data to be transmitted, e.g. The data should be of high quality.

(11) A system comprising the device and an in-vehicle device, wherein the device comprises communication means for communicating with the in-vehicle device, and a control section, and the control section controls the charging/discharging control section to select a power supply source for the in-vehicle device. When the vehicle is switched to the battery, the communication means outputs a switching signal (hereinafter referred to as a battery switching signal) indicating that the power source has been switched to the battery, and the in-vehicle device shoots the outside of the vehicle based on the shooting conditions. A recorder having device communication means for communicating with the device, applying the first condition as an imaging condition during a first period when the power source is a vehicle, and applying the first condition as an imaging condition during a second period when the power source is a battery It is preferable to adopt a configuration in which a second condition that saves more power is applied, and when a switching signal (battery switching signal) is received, the imaging condition is switched from the first condition to the second condition to continue imaging.

In this way, the amount of electric 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 and resolution, and power saving conditions may include lowering the frame rate and lowering the resolution. When the configurations of (5), (6) and (11) are provided, each communication means and each control means may share one communication means and one control means, or may be implemented separately. communication means and control means. Any one of (1) to (6) may be used as the device, and the vehicle-mounted device described in (7) may be used as the vehicle-mounted device. The same applies to (13) to (15) described later.

(12) A system comprising the present device and an in-vehicle device, wherein the device comprises communication means for communicating with the in-vehicle device, and a control unit, the control unit providing a signal indicating the remaining amount of the battery and charging/discharging When the control unit switches the power source for the in-vehicle device from the vehicle to the battery, the communication means outputs a switching signal (battery switching signal) indicating that the power source has been switched to the battery. A drive recorder for photographing the outside of a vehicle based on photographing conditions including a frame rate, and receives device communication means for communicating with a device, photographing means, a storage medium for storing images photographed by the photographing means, and photographing condition settings. a user interface, and upon receiving a signal indicating the remaining battery level and a switching signal (battery switching signal), one of the remaining battery level and the remaining capacity of the recording medium, and the received shooting time and frame rate; Either the shooting time or the frame rate may be determined based on the above.

In this way, the in-vehicle device can give priority to one of the shooting time and the frame rate and determine the other of the shooting time and the frame rate. The user can operate the in-vehicle device by setting a desired shooting time or frame rate. When the configurations of (5), (6) and (12) are provided, each communication means and each control means may share one communication means and one control means, or may be implemented separately. communication means and control means.

(13) A system comprising the present device and an in-vehicle device, wherein the device comprises communication means for communicating with the in-vehicle device, and a control unit, the control unit having a charge/discharge control unit that determines a power supply source for the in-vehicle device. When the vehicle is switched to the battery, the communication means outputs a switching signal (battery switching signal) indicating that the power source has been switched to the battery, and the in-vehicle device is a drive recorder that photographs the outside of the vehicle based on the photographing conditions. , positioning means for measuring the position of the vehicle, device communication means for communicating with the device, and storage means for storing the shooting conditions set by the user in association with the position, and receiving a switching signal (battery switching signal). When the current position is within a predetermined area of the position stored in the storage means, the imaging condition associated with the position may be determined as the current imaging condition.

In this manner, the vehicle-mounted device can set the photographing conditions stored in the storage means as the photographing conditions of the present time when the present position is within a predetermined radius of a previously set position. can be done. The user can operate the in-vehicle device without the trouble of repeatedly setting. Further, even if the current position does not match the position stored in the storage means, the vehicle-mounted device can set the photographing condition associated with the position as long as it is within the predetermined area of the stored position. This can be used as the shooting condition for this time. Therefore, even when the user freely parks in a parking lot having a predetermined site, for example, the same photographing conditions can be applied. The predetermined area may be, for example, an arbitrary shape centered on the latitude and longitude that specify 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 share one communication means and one control means, or may be implemented separately. communication means and control means.

(14) A system comprising the present device and an in-vehicle device, wherein the device comprises a communication means for communicating with the in-vehicle device, and a control unit, wherein the control unit controls the charge/discharge control unit to select a power supply source for the in-vehicle device. When the vehicle is switched to the battery, the communication means outputs a switching signal (battery switching signal) indicating that the power source has been switched to the battery, and the vehicle-mounted device satisfies the shooting conditions during the first period in which the power source is the vehicle. A drive recorder that captures an image of the outside of a vehicle based on the above information, comprising device communication means for communicating with the device, image capturing means, recording means for recording an image captured by the image capturing means, and transmission means for transmitting the image via a network. In preparation, when a switching signal (battery switching signal) is received, images that could not be transmitted during the first period may be transmitted during the period when the power source is the battery.

In this way, even if the record could not be transmitted during the first period, the record can be reliably transmitted. As a transmission destination, for example, it is preferable to use a database that can be viewed by a manager who manages the vehicle. The network may be, for example, a network for mobile terminals. The first period is often handled while driving, and during driving, communication may be interrupted and transmission may be disabled due to, for example, switching base stations, driving in areas with slow communication speeds, etc. . In addition, the second period often corresponds to the parking period, and the vehicle is less likely to move during the parking period, so the travel record can be reliably transmitted. When the configurations of (5), (6) and (14) are provided, each communication means and each control means may share one communication means and one control means, or may be implemented separately. communication means and control means.

(15) A system comprising the present device and an in-vehicle device, wherein the device comprises communication means for communicating with the in-vehicle device, and a control unit, wherein the control unit controls the charging/discharging control unit to select a power supply source for the in-vehicle device. When the vehicle is switched to the battery, the communication means outputs a switching signal (battery switching signal) indicating that the power source has been switched to the battery, and the vehicle-mounted device satisfies the shooting conditions during the first period in which the power source is the vehicle. a drive recorder for capturing an image of the outside of a vehicle according to a first period, comprising: capturing means; recording means for recording an image captured by the capturing means; and transmitting means for transmitting the image via a network; If the transmission speed is faster than the reference value when the switching signal (battery switching signal) is received, the image is transmitted at a bit rate higher than that in the first period.

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

(16) A system comprising the present device and an in-vehicle device, wherein the device comprises communication means for communicating with the in-vehicle device, and a control unit, and the control unit controls the charging/discharging control unit to select a power supply source for the in-vehicle device. When the vehicle is switched to the battery, the communication means outputs a switching signal indicating that the power source has been switched to the battery, and the in-vehicle device shoots the exterior of the vehicle based on the shooting conditions during the first period in which the power source is the vehicle. a drive recorder, which comprises: shooting means; a 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 image shot by the shooting means; , and at least one of a plurality of frames included in communication data of one communication unit is provided with a reference frame which is a frame that can be reproduced independently.

In this way, if only the reference frame of the communication data of one communication unit can be received, the video can be reproduced independently.

(17) A system comprising the present device and an in-vehicle device, wherein the device comprises communication means for communicating with the in-vehicle device, and a control unit, the control unit having a charge/discharge control unit that determines a power supply source to the in-vehicle device. When the vehicle is switched to the battery, the communication means outputs a switching signal indicating that the power source has been switched to the battery, and the in-vehicle device shoots the exterior of the vehicle based on the shooting conditions during the first period in which the power source is the vehicle. a drive recorder, comprising a photographing means, a switching function for switching between a plurality of recording media where data based on the image photographed by the photographing means is written, and a wireless communication function for transmitting data based on the image, If the video-based data could not be transmitted using the wireless communication function, from the recording medium storing the video-based data that could not be transmitted, during the period when the storage medium was not the write destination, based on the video that could not be transmitted A configuration in which data is read and transmitted by a wireless communication function is preferable.

In this way, even if the wireless communication means fails to transmit the video, the video for which transmission failed can be read out from any of the recording media that is not the storage destination and transmitted.

It is preferable to arbitrarily select and combine (1) to (17), and it is particularly preferable to combine (2) to (17) with (1) provided. Also, it is preferable to arbitrarily select and combine the elements (1) to (17).

According to the apparatus and the like according to the present application, it is possible to satisfactorily supply power to on-vehicle equipment and the like.

It is a block diagram showing the whole composition of an embodiment. 3 is a block diagram showing the electrical configuration of a monitoring battery; FIG. FIG. 4 is a timing chart diagram showing the correspondence between outputs of an ACC power supply and a monitoring battery; FIG. 11 is a diagram (1/4) showing screen transitions in monitoring recording. FIG. 4 is a diagram (2/4) showing screen transitions in monitoring recording. FIG. 4 is a diagram (3/4) showing screen transitions in monitoring recording. FIG. 4 is a diagram (4/4) showing screen transitions in monitoring recording. FIG. 16 is a diagram (1/6) showing screen transitions in setting. FIG. 6 is a diagram (2/6) showing screen transitions in setting. It is a figure (3/6) showing the screen transition in a setting. FIG. 4 is a diagram (4/6) showing screen transition in setting. It is a figure explaining "OFF" and "ON" of "overwrite" in a setting. FIG. 5 is a diagram (5/6) showing screen transition in setting. FIG. 6 is a diagram (6/6) showing screen transitions in 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. FIG. 4 is a functional block diagram of a drive recorder involved in recording data transfer during constant recording; It is a figure explaining a structure of communication data. 4 is a flowchart showing the processing content of communication processing; FIG. 10 is a diagram illustrating recording data transfer during constant recording when a communication disabled period occurs; FIG. 4 is a diagram for explaining settings for recording on an SD card and data transfer; FIG. 10 is a front view of a monitoring battery according to Modification 1 shown together with an input code and an output code; FIG. 10 is a diagram illustrating settings of DIP switches of a monitoring battery according to Modification 1; FIG. 10 is a diagram illustrating LEDs of a monitoring battery according to Modification 1; FIG. 11 is a perspective view of a monitoring battery according to Modification 2; FIG. 11 is a plan view of a monitoring battery according to Modification 2 shown together with an input code and an output code; FIG. 11 is a plan view of a monitoring battery according to Modification 2; FIG. 11 is a diagram illustrating setting of a detection voltage of a monitoring battery according to Modification 2; FIG. 11 is a diagram illustrating setting of an off timer of a monitoring battery according to Modification 2;

<Overall composition>
An overall configuration of the system 1 according to the embodiment will be described with reference to FIG. 1 .
System 1 is installed in a vehicle. A 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 monitor battery 3 is supplied with power from the ACC power supply (FIG. 2), the monitor 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) contained therein. Further, when the supply of power from the ACC power source is interrupted, the monitoring battery 3 switches the source of power supply to the drive recorder 4 from the vehicle to the internal battery 34 and continues to supply power to the drive recorder 4 . The monitoring battery 3 has an input connector 3a and an input/output connector 3b. The drive recorder 4 has an input/output connector 4 a 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 has 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 . This allows the monitoring battery 3 to receive power from the ACC power supply. The input/output connector 3b of the monitor battery 3 is connected to the first terminal 12a of the cable 12, and the second terminal 12b of the cable 12 is connected to the input/output connector 4a of the drive recorder 4. FIG. As a result, the monitor battery 3 can supply power to the drive recorder 4 and can perform serial communication with the drive recorder 4 .

<Structure of monitoring battery>
Next, the electrical configuration of the monitoring battery 3 will be explained using FIG. The monitoring battery 3 includes a charge/discharge controller 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 charging of the internal battery 34 and power supply to the drive recorder 4 . The internal battery 34 is a secondary battery, specifically a nickel metal hydride rechargeable battery. The DC-DC converter 32 converts the voltage of 12V or 24V supplied from the ACC power supply via the charge/discharge control unit 31 into a voltage of 5V and outputs the voltage. CPU 33 controls charge/discharge control unit 31, indicator 35, and the like. The CPU 33 also communicates with the drive recorder 4 connected via the cable 12 . The indicator 35 includes a lamp that notifies the operating state, a lamp that displays the remaining battery capacity of the internal battery 34, and the like. The lamps are realized with LEDs. The DIP switch DIPSW 36 has three switches. In the following description and drawings, the internal battery 34 may be referred to as an internal battery.

The charge/discharge control unit 31 is powered by and receives 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 supply to the internal battery 34 and the DC-DC converter 32 while power is being supplied from the ACC power supply. As a result, the internal battery 34 is charged, and the DC-DC converter 32 supplies the drive recorder 4 with the voltage-converted power. Note that the charge/discharge control unit 31 determines ON/OFF of the ACC power supply to switch between charging and discharging the internal battery 34 . When the charge/discharge control unit 31 determines that the ACC power supply is ON, it controls so that power is supplied from the ACC power supply 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 internal battery 34 is discharged, and power is supplied from the internal battery 34 to the DC-DC converter 32 .

Next, the operation of the monitoring battery 3 will be explained using FIG. The monitoring battery 3 uses the ACC power supply to output power to the drive recorder 4 while the ACC power supply is ON. ACC
When the power supply is cut off, the power is output to the drive recorder 4 using the internal battery 34 for a specified time after the cut off. After the specified time has passed, the power output is turned off. When the ACC power supply is restarted, the ACC power supply is used again to output power to the drive recorder 4 . As a result, the drive recorder 4 can continue to operate for the specified time after the ACC power supply is cut off. The specified time is set by serial communication from the drive recorder 4 . When the drive recorder 4 receives a battery switching signal, which will be described later, from the monitoring battery 3, it transmits a signal instructing a specified time. The CPU 33 sets the set value of the specified time included in the received signal for commanding the specified time as the specified time.

When a drive recorder without 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. The drive recorder 4 having a communication function transmits a signal inquiring about the remaining amount of the internal battery 34 when the power is turned on. If the CPU 33 does not receive a signal asking about the remaining amount of the internal battery 34, it determines that the drive recorder is not connected. When the CPU 33 determines that the drive recorder is not connected, the setting of the DIP switch DIPSW 36 is referred to. The DIP switch DIPSW 36 can hold a total of 8 set values related to the specified time in binary by a combination of ON/OFF of the 3 switches. The set values of the prescribed 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 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 ACC power is interrupted, the monitoring battery 3 switches the power source to the internal battery 34 and supplies power to the drive recorder 4 . Since the drive recorder 4 continues to receive power before and after switching, the drive recorder 4 cannot determine whether the power source is the ACC power source or the internal battery 34 . Therefore, when the power 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 supply is turned on after the monitoring battery 3 has turned off the output after the lapse of the specified time, the drive recorder 4 restarts the stopped power supply, so that it can be determined that the ACC power supply has been turned on. can be done. On the other hand, if 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 source is the ACC power supply or the internal battery 34 . Therefore, when the ACC power supply is turned on within the specified time, the CPU 33 transmits a vehicle switching signal that notifies that the power source has been switched to the ACC power supply. As a result, the drive recorder 4 can recognize that the ACC power supply has been turned on and the power source has been switched to the ACC power supply. As will be described later, the drive recorder 4 switches between operation modes in response to inputs of a battery switching signal and a vehicle switching signal. Also, 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 capacity of the internal battery 34 .

Next, the shape and the like of the monitoring battery 3 will be described. The monitoring battery 3 has a mechanism case. The mechanism case is made of heat-resistant resin and fixed to the vehicle with tie wraps or double-sided tape. The mechanism case is about the size of an elementary school student's lunch box, and is installed under the front row seats of the vehicle with the widest side facing down. Since the monitoring battery 3 is installed under the seat where direct sunlight is blocked, the temperature of the monitoring battery 3 can be prevented from rising. Since the temperature of the monitoring battery 3 is less likely to increase, the internal battery 34 is less likely to be subject to restrictions on charging and discharging due to an increase in temperature. As a result, power supply from the monitoring battery 3 is less likely to stop, and the operation of the drive recorder 4 is less likely to stop. Moreover, 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 of the internal battery 34 can be increased. For example, similar to the drive recorder 4, if the monitoring battery is attached to the windshield, it may drop if it is heavy. In addition, since the monitoring battery 3 is installed under the seat, it does not occupy the living space of the vehicle and does not interfere with driving and getting in and out of the vehicle.

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

<Configuration of drive recorder>
Next, the drive recorder 4 will be explained. The drive recorder 4 is attached to the inside of the vehicle interior of the windshield, and has a recording function of capturing an image of the front of the vehicle through the windshield and recording it on an SD card. Moreover, the drive recorder 4 has a communication function for communicating with the monitoring battery 3 in addition to the recording function that a general drive recorder has. The drive recorder 4 has a display 41 (FIG. 1). The drive recorder 4 also includes a control unit, GPS sensor, G sensor, camera, microphone, OBD connection cable, SD card interface, operation buttons, indicator lamps, and speaker (not shown). The display 41 is a full-color liquid crystal display having a backlight, and displays images under the control of the control unit. The GPS sensor measures the position of the drive recorder 4 and outputs the vehicle position, which is position information, to the control unit. The G sensor measures acceleration and outputs the measured acceleration to the control unit. The camera takes a picture and outputs the taken image data to the control section. 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 the vehicle. The control unit acquires vehicle information, which is self-diagnosis performed by an ECU mounted on the vehicle, via the OBD connection cable. The SD card interface has an SD card slot, and notifies that the SD card has been inserted when the SD card is inserted into the SD card slot. Also, under the control of the control unit, it reads information recorded in the SD card and outputs it 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 mechanical case of the drive recorder 4 . For example, when the operation button is pressed by the user, it outputs information indicating that the button has been pressed 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, It consists of a "power" button and so on. Hereafter, the "cursor (up)/REC" button, "cursor (down)/one-touch recording" button, "SD card format" button, and "MENU/MUTEonoff" button are respectively referred to as "cursor (up)" or " REC" button or "up" button, "cursor (down)" button or "down" button, "SD" button, or "MENU" button. Furthermore, a "button" may be described as a "key". The indicator lamp is implemented by an LED, and is turned on and off according to the control of the controller. The display lamps include a power lamp that lights when the power is turned on, a recording lamp that lights during recording, and the like. The speaker emits sound under the control of the controller.

The control unit includes a CPU, ROM, RAM, nonvolatile memory, and the like. The CPU controls each section by executing various programs stored in the ROM. Here, each unit includes the display 41, GPS sensor, G sensor, camera, SD card interface, operation buttons, display lamp, speaker, and the like. The ROM stores programs and data necessary for executing the programs. A RAM is used as a main storage device for the CPU to execute various processes. The RAM temporarily stores captured image data. The ROM also stores two image data codecs. A program for encoding image data for transmission via the Internet, a program for encoding image data for storage in an SD card, and the like. Details of the codec and the like will be described later. The nonvolatile memory 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) compliant with the Wi-Fi (registered trademark) standard that can be connected to a wireless LAN (Local Area Network), and a mobile phone that is compliant with LTE (Long term Evolution) and 4G (Generation). and a mobile communication interface 52 (FIG. 19) connectable to a network for terminals. As a result, the drive recorder 4 can be connected to the Internet via a wireless LAN via a Wi-Fi connectable router. It can also connect to the Internet through 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 addition, in areas where both wireless LAN connection and connection with a base station are possible, a function is provided to give priority to wireless LAN connection.

The drive recorder 4 has a control section, and since the control section processes image data, it generates a large amount of heat. Therefore, when the monitoring battery 3 is near the drive recorder 4, it is susceptible to 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. As a result, the monitoring battery 3 can be made less susceptible to the heat generated by the drive recorder 4 . Since the temperature of the monitoring battery 3 is less likely to increase, the internal battery 34 is less likely to be subject to restrictions on charging and discharging due to an increase in temperature. As a result, power supply from the monitoring battery 3 is less likely to stop, and the operation of the drive recorder 4 is less likely to stop.

Here, the effect of adopting the configuration of the system 1 compared with the conventional configuration will be described. For example, there are drive recorders with batteries such as lithium-ion polymer batteries (LiPo). A drive recorder with this configuration can operate for about 20 to 30 minutes, for example, after the ACC power is turned off. However, drive recorders are usually installed to capture images of the outside of the vehicle through the windshield and must be installed in a location exposed to the sun. was there. For example, in the summertime, it is difficult to charge the battery during the daytime, and in many cases, it is possible to charge the battery at the very last minute of the night. In addition, since the drive recorder is attached to the windshield, there are restrictions on size and weight. There is also a separate type drive recorder in which a camera unit having a camera and a main body having a CPU and a battery are separated. In this case, the heat from the CPU, etc. will be trapped inside the case of the main unit, and the temperature of the battery in the same case as the main unit may become higher than the temperature of the vehicle in a place that is not exposed to the sun. Ta. In this respect, in the system 1 , the drive recorder 4 is separate from the monitoring battery 3 , so that the heat generated by the CPU included in the drive recorder 4 can be less likely to affect the drive recorder 4 . In addition, since the monitoring battery 3 is installed under the seat, it is possible to reduce the influence of temperature rise due to exposure to the sun.

In addition, the internal battery 34 is a rechargeable nickel-metal hydride battery, and has a higher maximum chargeable temperature of about 70°C than a lithium-ion polymer battery with a charging temperature of about 0 to 45°C. can do. The monitoring battery 3 can supply power for about 10 hours after the ACC power supply is turned off, depending on operating conditions such as the environment. It is also possible to connect the drive recorder directly to the vehicle battery provided in the vehicle. However, in this configuration, it is necessary to leave a remaining amount in the vehicle battery for turning the starter motor of the vehicle, and it is necessary to grasp the remaining amount, but there is a problem that it is difficult to accurately grasp the remaining amount. be. 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, it can be determined that the remaining amount of the vehicle battery has decreased, for example, when the voltage drops below a predetermined value. However, the current consumption of the drive recorder is, for example, less than 1A, which is smaller than the current consumption of a starter motor of, for example, several to several tens of amperes. It is difficult to know the exact amount. In this regard, in the system 1, when the ACC power supply is turned off, the monitoring battery 3 uses the internal battery 34 to supply power to the drive recorder 4, so it is possible to prevent the vehicle battery from running out.

<Continuous recording mode, surveillance recording mode, event recording>
Next, the recording function of the drive recorder 4 will be explained. The drive recorder 4 operates according to the operation mode. Operation modes include a constant monitoring mode and a monitoring recording mode. The drive recorder 4 records in the constant recording mode and monitoring recording mode. In addition, event recording is performed according to a predetermined trigger in the constant recording mode and monitoring recording mode. There are two predetermined triggers: one is when the controller determines that an event has occurred based on G sensor information, and the other is when the user presses the "cursor (down)" button. This is the case where Specifically, the control unit determines that an event has occurred when the acceleration measured by the G sensor exceeds the threshold. As a result, the drive recorder 4 can perform event recording when the vehicle receives an impact due to an accident or the like. A case in which the "cursor (down)" button is pressed is, for example, a case in which a user who feels danger presses the "cursor (down)" button. The drive recorder 4 finely records about 10 to 30 seconds before and after the event that has occurred as event recording. Recording in the constant recording mode and the monitor recording mode performed by the drive recorder 4 will be referred to as constant recording and monitor recording, respectively. Further, event recording that is started when the control unit determines that an event has occurred based on G sensor information as a trigger may be referred to as G sensor event recording or G sensor event recording. Event recording that is started when the "cursor (down)" button is pressed is sometimes referred to as one-touch recording or one-touch event recording.

When the drive recorder 4 is powered on and capable of continuous recording, the drive recorder 4 operates in the continuous recording mode and starts continuous recording. In the constant recording mode, when receiving a battery switching signal from the monitoring battery 3, the control unit determines whether to switch to the monitoring recording mode or turn off the power of the drive recorder 4 based on the setting. After shifting to the monitoring recording mode, the drive recorder 4 starts monitoring recording if monitoring recording is possible. Further, when a vehicle switching signal is received from the monitor battery 3 and constant recording is possible, the drive recorder 4 shifts from the monitor recording mode to the constant recording mode and starts constant recording.

When the monitoring battery 3 receives power from the ACC power source, the vehicle is often running with its engine running. When the monitoring battery 3 is cut off from the ACC power supply, it is often the case that the engine of the vehicle is stopped and the vehicle is parked. The drive recorder 4 operates in the constant recording mode when the monitoring battery 3 is receiving power from the ACC power supply. The drive recorder 4 operates in the monitor recording mode when the monitor battery 3 is not receiving power from the ACC power supply. The drive recorder 4 switches the operation mode depending on whether or not the monitoring battery 3 is receiving power from the ACC power supply, thereby changing the operation mode between the state where the vehicle is running and the state where the vehicle is parked. It should be noted that in the following explanations and drawings, "engine ON/OFF" may be described instead of "ON/OFF of the ACC power supply".

The drive recorder 4 performs recording according to recording conditions corresponding to constant recording, monitoring recording, and event recording. Here, the recording condition is a setting related to image data to be stored, and more specifically, it is composed of setting items such as "number of recording frames", "resolution", and "recording time". The number of recording frames in event recording is as high as about 30 fps, and the "resolution" is as high as about 1080 pHD. In this way, the state of the accident is recorded in detail. It should be noted that in the following description and drawings, the "number of recording frames" may be referred to as "frame rate".

<Surveillance recording mode>
Next, the monitoring recording mode will be explained. As described above, when a 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 turn off the power of the drive recorder 4 based on the setting. The setting here is a setting related to the monitoring recording mode. Setting items related to the monitoring recording mode include "recording mode", "my area", and "my cancel area". The drive recorder 4 prepares 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, which will be described later. "Setting" will be explained after the explanation of 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, "automatically" means to operate regardless of input such as whether or not an operation button is 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 supply has been turned off. The same applies in the following description. When the "recording mode" is "manual", when the ACC power supply is turned off, a POPUP is displayed on the display 41 to confirm with the user whether or not monitoring recording is to be performed. When the "recording mode" is "OFF", monitoring recording is not performed. Since it can be set to "manual", the user can set the position of the vehicle, the remaining amount of the internal battery 34 (hereinafter referred to as the remaining battery amount), and the remaining amount of the SD card (hereinafter referred to as the SD card remaining amount). You can set the recording conditions by yourself. As will be described later, the setting of "my area" and "my cancel area" has priority over the setting of "recording mode". Also, in the following description and drawings, the "recording mode" may be referred to as "monitoring recording setting".

"My area" is an area where surveillance recording is automatically performed even when the "recording mode" is set to "manual". The "my cancel area" is an area in which surveillance recording is not performed automatically even when the "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 home parking lot with no security in "My Area", the user can automatically monitor and record when the user parks in the home parking lot. In addition, for example, if the user registers the parking lot of his/her workplace with security in the "My Cancellation Area", he/she can prevent surveillance recording from being performed in the parking lot of his/her workplace. In the following description and drawings, "my area" and "my cancel area" may be referred to as "monitored my area" and "monitored my cancel area", respectively.

The control unit determines to shift to the monitor recording mode in the case of the following settings. The first case is when the "monitoring recording setting" is "automatic" and the vehicle position is outside the "monitoring my area" and "monitoring my cancel area" areas. The second case is when the "monitoring recording setting" is "manual" and the vehicle position is within the "monitoring my area" area. Third, the "monitoring recording setting" is "auto", the vehicle position is within the "monitoring my cancel area", and "REC" is set within 30 seconds after the screen Sa1 (Fig. 4) is displayed. This is when the button is pressed. Fourth, the "monitoring recording setting" is "manual", the area is outside the "monitoring my area", and the "REC" button is pressed within 30 seconds after the screen Sa2 (FIG. 4) is displayed. is the case.

When the "monitoring recording setting" is set to "manual", the drive recorder 4 displays the screen Sa2 and prompts the user to "REC ' button, and when the 'REC' button is pressed, surveillance recording is started. When the "monitoring recording setting" is set to "automatic", the drive recorder 4 performs monitoring recording without waiting for the user's operation except when the vehicle position is within the "monitoring my cancel area". to start. By registering the parking position in the "monitoring my area" in advance before parking, the user can automatically start monitoring recording in the drive recorder 4 when the vehicle is parked at the parking position. By registering a parking position that does not require monitoring recording in the "monitoring my cancellation area" in advance, the user can automatically start monitoring recording in the drive recorder 4 when parking at a parking position that does not require 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 settings. First, the "monitoring recording setting" is "automatic", the vehicle position is within the "monitoring my cancel area", and the "REC" button is pressed after the screen Sa1 (Fig. 4) is displayed. This is the case in which 30 seconds have passed without stopping. Second, the "monitoring recording setting" is "manual", 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 the case where 30 seconds have passed without any change.

Next, the operation of the drive recorder 4 after receiving the battery switching signal in the constant recording mode will be described using display screens displayed on the display 41 with reference to FIGS. 4 to 7. FIG. "Monitoring recording" in FIG. 4 indicates that it is after receiving the battery switching signal in the constant recording mode.

If the "monitoring recording setting" is "automatic" and the vehicle position is within the "my cancel area" area, the control unit displays the screen Sa1. On the screen Sa1, a message of "<inside monitoring my cancel area> cursor (upper)/REC button: start of monitoring recording, power off in XX seconds" is displayed in white characters on a red background. If the "REC" button is pressed before 30 seconds elapse, the monitor recording mode is entered. Also, when the "monitoring recording setting" is "manual" and the vehicle position is within the "monitoring my area" area, the mode shifts to the monitoring recording mode. Also, when the "monitoring recording setting" is "automatic" and the vehicle position is outside the "monitoring my area" and "monitoring my canceling area" areas, the mode shifts to the monitoring recording mode. When the "monitoring recording setting" is "manual" and the vehicle position is outside the "monitoring my cancel area" and "monitoring my area" areas, the screen Sa2 is displayed. On the screen Sa2, a message of "Cursor (up)/REC button: start monitoring recording, power off in XX seconds" is displayed in white characters on a red background. If the user presses the "REC" button within 30 seconds, the monitor recording mode is entered. If the "monitoring recording setting" is "OFF", the power is turned off after the screen Sa3, which is the ending screen, is displayed. If the "REC" button is not pressed within 30 seconds after the screens Sa1 and Sa2 are displayed, a no-operation timeout occurs, and the power is turned off after the screen Sa3 is displayed.

If the GPS sensor cannot acquire the position information, the screen Sa2 is displayed in the same manner as when the "monitoring recording setting" is set to "manual" and the area is outside the "monitoring my area" area. If the "REC" button is pressed within 30 seconds from , the mode shifts to the monitoring recording mode.

Next, the control unit determines whether or not the remaining capacity of the SD card is sufficient for the "setting" of the recording conditions of the monitoring recording mode. When the controller determines that the SD card remaining capacity is sufficient, it starts surveillance recording. The recording conditions of the monitoring recording mode include setting items such as "recording time", "resolution", and "number of recording frames". The control unit records the image data on the SD card. Therefore, if the remaining capacity of the SD card is not sufficient, it may not be possible to record as set. Therefore, the control unit determines whether or not the SD card remaining capacity is sufficient for the setting based on the setting of the recording conditions and the SD card remaining capacity before executing monitoring recording. Specifically, the amount of data per second is calculated by multiplying the amount of data corresponding to the "resolution" by the "number of recording frames". The total amount of data is calculated by multiplying the calculated amount of data per second by the "recording time", and if 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 settings. A table of "resolution" vs. "data amount" is recorded in the ROM in advance. The control unit refers to the table, reads out the data amount corresponding to the corresponding "resolution", and calculates it. "SD card: OK" shown in FIG. 5 indicates a case where the controller determines that the remaining capacity of the SD card is sufficient. "SD card: NG" indicates a case where the control unit determines that the remaining capacity of the SD card is insufficient.

In addition, the control unit determines whether or not the remaining battery level is sufficient for the "setting" of the recording conditions in the surveillance 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. Therefore, if the remaining battery power is insufficient, recording may not 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 battery remaining amount of the internal battery 34 is a signal indicating numerical information indicating the battery remaining amount in percent and information on the type of the internal battery 34 . Here, the model of the internal battery 34 is, for example, a battery capacity such as 500 mAh or 10,000 mAh. The controller calculates the remaining capacity of the internal battery 34 by multiplying the type of the internal battery 34 by a numerical value indicating the remaining battery capacity in percentage. The "usable time" is calculated by dividing the calculated remaining capacity of the internal battery 34 by its own consumption current stored in advance in the ROM. If the "usable time" is longer than or equal to the recording time, it is determined that the battery level is sufficient. "External battery remaining amount: OK" shown in FIG. 5 indicates a case where the control unit determines that the battery remaining amount is sufficient. “External battery level: NG” indicates a case where the controller determines that the battery level is not sufficient.

When recording to an SD card, it is also possible to overwrite data that has already been stored. The drive recorder 4 has a configuration in which whether or not to overwrite can be set in "Settings". More specifically, there is a setting item "supervisory recording overwrite", which is configured so that either "ON" or "OFF" can be selected. In addition, the SD card is preliminarily divided into four folders: "constant recording", "constant event recording", "monitoring recording", and "monitoring event recording". As for overwriting, in addition to "monitoring recording overwrite", there are setting items such as "event recording overwriting", and it is configured to be able to be set in the same way as "monitoring recording overwriting". Note that "constant event recording" means event recording in the constant recording mode. Similarly, "event recording during monitoring" is event recording in the monitoring recording mode. Also, in the following description and drawings, "overwrite monitoring recording" may be described as "overwriting previous recording". "Overwrite previous recording: ON" shown in FIG. 5 indicates a case where "Overwrite monitoring recording" is set to "ON". "Overwrite previous recording: OFF" indicates that "Overwrite monitoring recording" is set to "OFF".

When the control unit determines that the SD card remaining capacity and the battery remaining capacity are sufficient and "overwrite monitoring recording" is set to "ON", ("SD card remaining capacity: OK", "external battery "Remaining capacity: OK" and "Overwrite previous recording: ON"), the control unit judges that monitoring recording can be executed according to the "setting", and displays screen Sa4. The screen Sa4 displays a message "Monitoring recording will start, monitoring recording time: XX minutes, remaining external battery level:". Also, an icon indicating the remaining battery level is displayed to the right of "remaining external battery level:". The icon for displaying the remaining battery capacity is an icon that indicates the remaining capacity in stages on the outline of the battery. The controller displays the calculated "usable time" to the right of "monitoring recording time:". Also, based on the remaining battery percentage transmitted from the monitoring battery 3, it is displayed as an icon. Next, after 3 minutes have passed, the screen Sa8 is displayed.

In addition, when the control unit determines that the SD card remaining amount is sufficient, the control unit determines that the battery remaining amount is not sufficient, and "monitoring recording overwrite" is set to "ON" (see FIG. 5 "SD card remaining capacity: OK", "external battery remaining capacity: NG", "previous recording overwriting: ON"), the control unit indicates that the remaining battery capacity is low and monitoring recording cannot be performed for the set "recording time". Then, the screen Sa5 is displayed. The screen Sa5 displays a message "Monitoring recording will be started, external battery level is insufficient, monitoring may be terminated halfway, external battery level:". Also, an icon indicating the remaining battery level is displayed to the right of "remaining external battery level:". Next, before the set "recording time" elapses, the screen transitions to screen Sa3 as the remaining battery level decreases to such an extent that the drive recorder 4 becomes inoperable.

Also, if the control unit determines that the SD card remaining capacity is not sufficient and the "monitoring recording overwrite" is set to "OFF" (in FIG. 5, "SD card remaining capacity: NG", "previous recording overwrite : OFF”), the control unit displays a screen Sa6 to prompt the user to change the “setting”, for example, change the “previous recording overwrite” to ON. The screen Sa6 displays a message "There is no space in the monitoring recording folder, MENU button: change settings, SD button: delete monitoring recording, power off in XX seconds". The screen Sa14 (FIG. 8) is displayed when the user presses the "MENU" button within 30 seconds from the start of display of the screen Sa6. The screen Sa14 is a setting screen for receiving "setting". As will be described later, if the "MENU" button is pressed while the setting screens (screens Sa14 to Sa17) are being displayed, the "settings" may have been changed. mode”, and the controller determines again whether the SD card remaining capacity and battery remaining capacity are sufficient. On the other hand, if the "SD" button and the "MENU" button are not pressed within 30 s from the start of display of the screen Sa6, the no-operation timeout occurs, the screen transitions to the screen Sa3, and the power is turned off.

When the "SD" button is pressed after the screen Sa6 is displayed, it means that the user has instructed to erase the data in the SD card, so the control unit displays the screen Sa12. On the screen Sa12, a message of "Delete surveillance recording folder, MENU button: cancel, start surveillance recording after deletion in XX seconds" is displayed. Next, if the "MENU" button is not pressed within a predetermined period of time after the screen Sa12 is displayed, it is determined that the user has consented to erasing the data from the SD card, and after clearing the surveillance recording folder, the screen is displayed. Display Sa5. On the other hand, if the "MENU" button is pressed within a predetermined period of time after the screen Sa12 is displayed, it is determined that the user has canceled the execution of erasing the data in the SD card, and the screen Sa6 is displayed without clearing the monitoring recording folder. display the screen. In this way, the user can erase the parking recorded data with a simple operation of a single button when the remaining SD card capacity of the SD card is low. Here, the parking recording data is the recording data stored in the parking recording.

The recorded data stored in the folders assigned to "monitoring recording" and "monitored event recording" are unnecessary data unless there is an abnormality in the vehicle. can erase data. Here, the easy delete button is the "SD" button that is pressed while the screen Sa6 is being displayed.

The screen Sa8 and the screen Sa10 are display screens during execution of monitoring recording. Screen Sa7 and screen Sa9 are display screens during execution of event recording. The screen Sa8 and the screen Sa7 are in the screen off state, and the screen Sa10 and the screen Sa9 are in the screen on state. The screen-off state is a state in which the backlight is not lit, and the screen-on state is a state in which the backlight is lit. Although the screen Sa8 and the screen Sa7 are in the screen-off state, the control unit lights the recording lamp in a lighting pattern different from that of constant recording in order to inform 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 in the upper left corner of the screen, an icon depicting a camera and an icon depicting a red circle indicating that recording is in progress are displayed. . Also, the elapsed time from the start of recording and the resolution are displayed on the upper right of the screen. Also, the time is displayed at the lower left of the screen.

When the control unit determines that an event has occurred in the monitor recording state in which the screen Sa8 is displayed, the control unit transitions to the screen Sa7 and switches to event recording. In addition, in the monitor recording state where the screen Sa7 is displayed, when the end of the event is detected, the screen transitions to the screen Sa8 to switch to the monitor recording. Similarly, when it is determined that an event has occurred in the monitor recording state where the screen Sa10 is displayed, the screen changes to the screen Sa9 and switches to event recording. In addition, in the monitor recording state displaying the screen Sa9, when the end of the event is detected, the screen transitions to the screen Sa10 to switch to the monitor recording. Note that the control unit determines that the event has ended when 30 seconds have passed since it determined that the event occurred. The screen Sa8 and the screen Sa10 are alternately switched each time the "MODE" button is pressed. Further, after 10 seconds have passed since the display of the screen Sa10 was started, the screen is switched to the screen Sa8. By using the screens Sa7 and Sa8 as the display screens, it is possible to save power and make the internal battery 34 last longer than when using the screens Sa9 and Sa10. You can also shoot secretly.

When the "monitoring recording time" expires during monitoring recording displaying the screen Sa8, when "LOBATT" occurs when the remaining battery capacity of the internal battery 34, which is an external battery, is low, and when the cable 12, which is the power cord, is disconnected. If it is pulled out, the screen changes to the screen Sa3. Similarly, when the "monitoring recording time" expires during monitoring recording when the screen Sa10 is being displayed, in the case of "LOBATT" when the remaining amount of the internal battery 34, which is an external battery, is low, and when the power cord is When the cable 12 is pulled out, the screen changes to the screen Sa3.

When the "REC" button is pressed during monitor recording displaying the screen Sa10, the screen transitions to the screen Sa11 and the monitor recording is stopped. Next, one minute after the start of display of the screen Sa11, the screen is changed to the screen Sa3. If it is determined that an event has occurred while the screen Sa4 is being displayed, the screen changes to the screen Sa9 and event recording is started.

Incidentally, among the recording conditions in the event recording mode, the "number of recording frames" is set in advance and is 30 fps. In the above description, event recording is performed when the end of an event is detected. If there is no SD card remaining capacity allocated for recording, event recording is not performed. Also, the control unit does not perform event recording for 3 minutes from the start of monitoring recording. As a result, it is possible to prevent the event from being recorded when the door is opened and closed, such as when the user gets in and out of the vehicle or when the cargo is loaded or unloaded.

<Monitoring recording settings in monitoring recording mode>
Next, the setting screen to which the "MENU" button is pressed while the screen Sa6 is displayed will be described with reference to FIGS. 8 and 9. FIG. Screens Sa14 to Sa17 are all setting screens for setting monitoring recording. As shown in the screen Sa14, the control unit displays "monitoring recording setting" on the upper right of the screen, and displays the message "MENU, SD space: XX minutes" at the bottom of the screen. An icon with a back arrow is displayed to the right of "MENU". Thus, the user can be informed that pressing the "MENU" button will return to the previous display screen. In addition, the control unit displays the calculated "usable time" to the right of "SD free:". In the center of the screen, a list of "recording time", "recording resolution", "number of recording frames", and "previous recording overwrite", which are setting items in the surveillance recording mode, is displayed. The number of items that can be displayed on the screen is four, and items that are not displayed are displayed by scrolling according to the depression of the "up" key or the "down" key. In addition, the currently selected item is displayed with a different background color (hereinafter referred to as "selection display") in order to distinguish it from other items. More specifically, for example, both are displayed in white characters, the background color of the selected item is displayed in blue, and the background color of the other items is displayed in black. Incidentally, in FIGS. 8 and 9, currently selected items are shaded for explanation.

As described above, when the "MENU" button is pressed while the screen Sa6 is being displayed, the screen Sa14 is displayed. Each time the "down" key is pressed, the screen changes in order from screen Sa15, screen Sa16, screen Sa16, screen Sa17, and screen Sa15 again. Similarly, each time the "up" key is pressed, the screen transitions to screen Sa17, screen Sa16, screen Sa15, screen Sa14, and screen Sa17 again.

When the "OK" key is pressed while the screen Sa14 is being displayed, the screen Sa18 is displayed. On the screen Sa18, "recording time", which is the item being set, is displayed on the upper right of the screen, and "1/5" indicating the page number of the display screen of "recording time" is displayed on the lower left of the screen. As with the screen Sa14, the number of displayed items is four, and the items are divided into four groups, and one divided group is displayed as one page. As will be described later, there are a total of 17 options for "recording time", and the total number of pages is 5 pages. When the "down" key is pressed, the next page is displayed. The previous page is displayed in response to pressing the "up" key. It should be noted that illustration of the second and subsequent pages is omitted. "Recording time" options 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 is a currently set option, a check mark is displayed at the left end of the currently set option.

In addition, options that are longer than the "usable time" calculated based on the remaining capacity of the SD card and cannot be recorded are displayed in red (not shown). For example, if the "usable time" is 60 minutes, options for 90 minutes or longer are displayed in red. This allows the user to avoid options that cannot be recorded. When the "OK" key is pressed while the screen Sa18 is being displayed, the selected option is used as the set value of the "recording time" to update the non-volatile storage unit, and the screen transitions to the screen Sa14. Further, when the "MENU" key is pressed while the screen Sa18 is being displayed, the setting value of the "recording time" stored in the non-volatile storage unit is not updated, and the screen transitions to the screen Sa14.

When the "down" key is pressed while the screen Sa14 is being displayed, the screen Sa15 is displayed. On the screen Sa15, the "recording resolution" is "selectively 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", which is the item being set, is displayed on the upper right of the screen, and "1/1" indicating the page number of the display screen of "recording resolution" is displayed on the lower right of the screen. There are four options for "recording time" and one page for "recording resolution". Specifically, the options are 1080pHD (1920x1080), 1080p (1440x1080), 720p (1280x720), VGA (640x480). As with the "recording time", if there is a currently set option, a check mark is displayed at the left end of the currently set option. When the "OK" key is pressed while the screen Sa19 is being displayed, the selected option is used as the set value of the "recording resolution" and the non-volatile storage unit is updated, and the screen transitions to the screen Sa15. Further, when the "MENU" key is pressed while the screen Sa18 is being displayed, the setting value of the "recording resolution" stored in the non-volatile storage unit is not updated, and the screen transitions to the screen Sa15.

When the "down" key is pressed while the screen Sa15 is being displayed, the screen Sa16 is displayed. On the screen Sa16, the "number of recorded frames" is "selectively displayed". When the "OK" key is pressed while the screen Sa16 is being displayed, the screen Sa20 is displayed. On the screen Sa20, the item being set is displayed at the upper right of the screen, ``number of recorded frames'', and at the lower right of the screen, ``1/2'' indicating the page number of the display screen of the ``number of recorded frames'' is displayed. . Although illustration of the second page is omitted, there are two pages of "number of recording frames". In addition, there are five options for "number of recording frames". Specifically, they are 1 fps, 5 fps, 10 fps, 15 fps, and 30 fps. As with the "recording time", if there is a currently set option, a check mark is displayed at the left end of the currently set option. When the "OK" key is pressed while the screen Sa20 is being displayed, the non-volatile storage unit is updated with the selected option as the set value of the "number of recording frames", and the screen transitions to the screen Sa16. When the "MENU" key is pressed while the screen Sa20 is being displayed, the screen changes to the screen Sa16 without updating the set value of "number of recording frames" stored in the non-volatile storage unit.

Also, like the "recording time", options that cannot be recorded are displayed in red (not shown). The number of recordable frames is calculated by dividing the SD card remaining capacity by the set value of "recording time" and by the amount of data corresponding to "resolution". An fps value greater than the calculated number of recordable frames is displayed in red. For example, if the number of frames that can be recorded is 10 fps, options for 15 fps or more are displayed in red. This allows the user to avoid 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, "overwrite monitoring recording" is "selectively displayed". When the "OK key" is pressed while the screen Sa17 is being displayed, the screen Sa21 is displayed. On the screen Sa21, the item being set is displayed at the upper right of the screen as "overwrite monitoring recording". There are two options for "overwrite surveillance recording": "ON" and "OFF". As with the "recording time", if there is a currently set option, a check mark is displayed on the currently set option. When the "OK key" is pressed while the screen Sa21 is being displayed, the non-volatile memory unit is updated with the selected option as the set value of "Overwrite monitoring recording", and the screen transitions to the screen Sa17. Further, when the "MENU key" is pressed while the screen Sa21 is being displayed, the screen transitions to the screen Sa17 without updating the set value of "overwrite monitoring recording" stored in the non-volatile storage unit.

When the "MENU key" is pressed while the screens Sa14 to Sa17 are being displayed, the mode shifts to the "monitoring recording mode" (FIG. 5). Further, when the remaining battery level of the monitoring battery 3 decreases while the screens Sa14 to Sa17 are being displayed, or when the power cable 11, which is a power cord, is pulled out, the screen transitions to the screen Sa3.

As described above, a user who wants to perform surveillance recording immediately displays screens Sa14 to Sa17 and changes the setting values to the SD card when the SD card remaining capacity is low and recording is not possible with the preset setting values. It is possible to change to an option that matches the remaining amount. In addition, the drive recorder 4 displays options in red for "recording time" and "number of recording frames" that cannot be recorded. As a result, the user can set one of the "recording time" and the "number of recording frames" to be prioritized, and then set the other of the "recording time" and the "number of recording frames" as a recordable option. can be done.

<Monitoring recording settings>
In the above, the setting screen in the monitoring recording mode, which transitions when the SD card remaining capacity is insufficient in the monitoring recording mode, has been described. Apart from this, the drive recorder 4 is configured to receive more detailed settings for the monitoring recording mode in the constant monitoring mode. Next, description will be made with reference to FIGS. 10 and 11. FIG.

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 constant recording is possible. Specifically, when the power of the drive recorder 4 is turned on, after displaying the opening screen, the screen displays "Preparing for recording, please wait for a while". Here, the control unit determines whether the setting of "constant recording overwrite" is "ON" or whether constant recording is possible when the folder of the SD card assigned to constant recording has an empty area. to decide. When it is determined that continuous recording is possible, continuous recording is started. On the other hand, when it is determined that constant recording is not possible, the screen is switched to the camera image through display screen. A camera image through display screen is a screen that displays an image captured by a camera in real time. If event recording is executed during surveillance recording before the power is turned on, after the opening screen is displayed, a message "Event recording occurred during surveillance recording" will be displayed on the screen. Transition. This allows the user to know that an event has occurred during monitoring recording. When the "OK" button is pressed while the message "There was an event recorded during surveillance recording" is displayed, or after 60 seconds have passed without any operation from the start of the display, the above "Preparing for recording, Please wait for a while." is displayed.

As described above, the drive recorder 4 shifts from constant recording to event recording in accordance with a predetermined trigger. When the G-sensor detects an impact during constant 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 ends, the screen changes to the continuous recording screen. By displaying different icons for the G-sensor event recording screen and the one-touch recording screen, the user is notified of which screen is the G-sensor event recording screen or the one-touch recording screen.

When the "MENU" key is pressed while the camera image through display screen is being displayed, the menu screen is displayed. The menu screen is a screen that displays a list of setting items that can be set by the user. As with the screen Sa14, the number of items displayed on the menu screen is four, and each group of four items is displayed as one page. In addition to the above, the control unit also displays the camera image through display screen after the "REC" button is pressed during continuous recording and the continuous recording is stopped. Further, when an event recording is triggered while the camera image through display screen is being displayed, the control unit starts the event recording, and when the event recording ends, the camera image through display screen is displayed again.

A screen Sb1 shown in FIG. 10 is the screen of the third page of the menu screen. As shown in the screen Sb1, the control section displays "RECORDING SETTING" on the upper right of the screen and "MENU" on the bottom of the screen. An icon with a back arrow is displayed to the right of "MENU". Display the page number at the bottom right of the screen. There are 14 recording setting items. For details, "Resolution", "Number of recording frames", "Audio recording", "Event beep sound", "Continuous recording overwrite", "One-touch record overwrite", "G sensor record overwrite", "Screen auto off", "G sensor setting", "G sensor sensitivity"','monitoring recording setting', 'monitoring my area', 'monitoring my cancel area', and 'my area cancellation'. "Resolution" and "number of recording frames" are recording conditions applied to constant 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 surveillance recording mode. As a result, the user does not need to set the event recording in the constant recording mode and the event recording in the monitor recording mode separately, thereby reducing the user's annoyance and making it easier to understand.

Screens Sb11 to Sb15 are all screens for setting monitoring recording settings. As shown in the screen Sa14, the control unit displays "monitoring recording setting" on the upper right of the screen, and displays monitoring recording setting items "recording mode", "recording time", "recording resolution", "recording frame number", and "recording time" in the center of the screen. "Overwrite previous recording" is displayed in the list. The number of items displayed on the screen is four, and items that are not displayed can be scrolled and displayed by pressing the "up" key or "down" key. there is Also, the currently selected item is “selected and displayed”. 10 and 11, the currently selected item is shaded for explanation. Here, the items that can be set are the items displayed on the setting screen (FIGS. 9 and 10) in the monitoring recording mode, with the addition of "recording mode". Therefore, descriptions of the items displayed on the setting screen in the monitoring recording mode, namely, "recording time", "recording resolution", "number of recorded frames", and "previous recording overwrite" will be omitted as appropriate.

When 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 the item being set, is displayed on the upper right of the screen, and "1/2" indicating the page number of the display screen of "monitoring recording setting" is displayed on the lower left of the screen. On the screen Sa111, "recording mode", which is the item being set, is displayed on the upper right of the screen. There are three options for "recording mode": "automatic", "manual", and "off". Since the "recording mode" has been described above, a description thereof will be omitted. When the monitor battery 3 is powered on, it transmits a signal to inquire about the remaining battery power, and when it receives a signal indicating the remaining battery power, it determines that the monitor 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. If the monitoring battery 3 is not connected, monitoring recording cannot be performed, so the control unit grays out "automatic" and "manual". Specifically, it displays characters in gray instead of white and prevents the user from selecting them.

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

Here, "previous recording overwrite" set on screen Sa17 and screen Sb15 will be described using FIG. “Overwrite previous recording” is for setting whether or not to overwrite monitoring recorded data, which is monitoring recorded data recorded up to the previous time. In the case of "OFF", recording is performed within the remaining capacity of the surveillance recording folder without overwriting. Recording is continued in the vacancies, and recording is terminated when the vacancies are exhausted. In the case of "ON", recording is first performed within the surveillance recording folder. As the capacity becomes full and there is no free space, the surveillance recordings up to the last time are overwritten from the old ones. In this case, the monitoring recording data being shot this time is not overwritten, and the recording ends as soon as the data of this time is recorded in the capacity of the SD card.

For example, the user can set "ON" if it was confirmed that there was no abnormality in the vehicle during the previous parking, and set "OFF" if it has not been confirmed yet.

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

As shown in FIGS. 13 and 14, there are five options for "monitoring my area": "recording time", "recording resolution", "number of recording frames", "area radius", and "execution of registration". Of these screens, screens Sb21 to Sb23, which are screens for setting "recording time", "recording resolution", and "number of recording frames", are the same as screens Sb12 to Sb14 described above, respectively, and descriptions thereof will be omitted. On the screen Sb24 (FIG. 14), the control section "selectively displays" the "area radius". When the "OK" key is pressed while the screen Sb24 is being displayed, the screen transitions to the screen Sb241. At the bottom right of the screen Sb241, "1/2" indicating the number of pages of the "area radius" display screen is displayed. There are five options for "area radius": "15m", "30m", "50m", "100m", and "200m". The number of items to be displayed is four, each of which is divided into four items, and one divided group is displayed as one page. The total number of pages in the "area radius" is 2 pages. It should be noted that illustration of the second and subsequent pages is omitted. When the "OK" key is pressed while the screen Sb241 is being displayed, the selected option is used as the set value of the "area radius" to update the non-volatile storage unit, and the screen transitions to the screen Sb24. Further, when the "MENU" key is pressed while the screen Sb241 is being displayed, the screen transitions to the screen Sb24 without updating the set value of the "area radius" stored in the non-volatile storage unit. As noted above, the "area radius" is user specified.

When the "Down" key is pressed while the screen Sb24 is being displayed, the screen Sb25 (FIG. 14) is displayed. On the screen Sb25, the control unit "selectively displays" "registration execution". When the "OK" key is pressed while the screen Sb25 is being displayed, the screen transitions to the screen Sb251. The screen Sb251 displays a message “Do you want to register your current location in my monitoring area?” and options of “OK” and “Cancel”. Also, the control unit refers to the non-volatile storage unit, reads the number of locations that can be recorded in the non-volatile storage unit and the number of locations that have been recorded in the non-volatile storage unit. (○/○ case) is displayed to clearly indicate 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 non-volatile storage unit as the center position of the "monitoring my area". The screen Sb252 displays a message "The current location has been registered in my monitoring area (○/○ cases)". Three seconds after 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 "execution of registration", the control unit sets the area radius set in the "area radius" centering on the location P1 recorded in the nonvolatile storage unit as the central position of the "monitoring my area". The inside of the area of the circle A1 drawn with the value as the radius is recognized as the "monitoring my area" which is the parking area.

For example, it is assumed that the user parks the vehicle at the parking place P1 for the first time and presses the "OK" button while the screen Sb251 is being displayed. The control unit records the location P1 in the non-volatile storage unit as the center position of the "monitoring my area". When the vehicle is parked at the location P2 within the circle A1 within the "monitoring my area" from the second time onwards, monitoring recording is started according to the set recording conditions of the "monitoring my area". Recording conditions include "recording time", "recording resolution", and "number of recording frames". Once the user sets the recording conditions, the control unit automatically performs monitoring recording based on the settings from the next time.

Assume that the user registers the first parking place as the center position of the "monitoring my area". If the "monitoring recording setting" is set to "automatic", the drive recorder 4 automatically performs monitoring recording when the vehicle is parked in the "monitoring my area" from the second time. Also, if the "monitoring recording setting" is set to "manual", the drive recorder 4 will manually press the "REC" button from the second time to perform monitoring recording. In places where the user doesn't care (safe and short-term parking places such as convenience stores), the user wants to automatically record with the minimum setting (1 fps), and when shopping for a long time, etc., the SD card remaining amount and battery You can see the remaining amount and respond to requests such as wanting to set it.

When the "down" key is pressed while the screen Sb2 is being displayed, the screen Sb3 (FIG. 13) is displayed. On the screen Sb3, the control section "selectively displays" the "monitoring my cancel area". When the "OK" button is pressed while the screen Sb3 is being displayed, the screen transitions to the next setting screen. Since the setting screen is the same as that of the "monitoring my area", illustration and description are omitted. There are five options for "monitoring my cancel area", which are "recording time", "recording resolution", "number of recording frames", "area radius", and "registration execution", similarly to "monitoring my area". In addition, "recording time", "recording resolution", "number of recording frames", "area radius", and "execution of registration" have a plurality of options as in the case of "monitoring my area". The conditions set in the "monitoring my cancel area" are 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 section "selectively displays" "cancel my area". 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 displaying a list of options of "cancel current location" and "cancel all locations" is displayed. If the "OK" button is pressed while "Cancel current location" is "selected", the message "Are you sure you want to cancel the My Area information of your current location?" display. Furthermore, when the "OK" button is pressed while "OK" is selected, the screen transitions to the screen displaying the message "Cancelled", and the "monitoring my area" is stored in the non-volatile 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 non-volatile storage unit. When "OK" is pressed while "Cancel" is "selectively displayed", it is determined that the user has canceled the cancellation, and a screen displaying the items "Cancel current location" and "Cancel all locations" is displayed. transition to

On the other hand, if the "OK" button is pressed with "Cancel all locations" selected and displayed on the screen displaying a list of options for "Cancel current location" and "Cancel all locations", "Cancel all locations" will be displayed. Are you sure you want to cancel your My Area information?" along with the options of "OK" and "Cancel", and when the "OK" button is pressed, the screen transitions to a screen that displays the message "Cancelled". At the same time, the position information of all the points stored as the central position of the "monitoring my area" in the nonvolatile memory is erased from the nonvolatile memory.

When recording to an SD card, the drive recorder 4 is used for each of "constant recording", event recording "G sensor recording", event recording "one-touch recording", and "parking surveillance recording". to determine and record the upper limit capacity. In addition, it is possible to reproduce the recorded data and erase the recorded data. Specifically, when the "MODE" key is pressed on the camera image through display screen described above, the screen displays the options of "constant recording", "G sensor recording", "one-touch recording", and "surveillance recording" as playback folders. Transition. For example, when the "OK" key is pressed while "monitoring recording" is selected, the display 41 displays recorded data. Alternatively, the SD card can be removed from the drive recorder 4 and played back on, for example, a PC. Here, "G-sensor recording" is event recording that is started when the controller determines that an event has occurred based on information from the G-sensor. “One-touch recording” is event recording started by the control unit when the “cursor (down)” button is pressed. “Parking monitoring recording” is monitoring recording.

Also, if you want to delete the data recorded on the SD card, when the "SD" button is pressed on the camera video through display screen, the screen transitions to the "SD card maintenance" screen display, and the "monitoring recording folder When "clear" is selected and the "OK" button is pressed, the "surveillance recording" data is erased.

<Communication function>
After the engine is stopped, the drive recorder 4 receives power from the monitoring battery 3 and transmits the recorded data of constant recording and event recording to a center connected to the Internet. Here, the center is, for example, a database or the like that can be viewed by a manager who manages vehicles.

The CPU executes two codecs, and in constant recording, the codec of recorded data to be transmitted from the LAN interface or mobile communication interface 52 and the codec of recorded data to be written to the SD card are processed in parallel as separate processes. and run. Thereby, the recorded data to be transmitted from the LAN interface or the mobile communication interface 52 can be different from the recorded data recorded on the SD card. Here, it is assumed that the recorded data recorded on the SD card has a lower compression rate than the recorded data transmitted from the LAN interface or the mobile communication interface 52, and the image at the time of reproduction is clear.

Next, a data transfer method in communication of constantly recorded data will be described with reference to FIG. The control unit records images output from the camera in the RAM and SD card during continuous recording. Specifically, the CPU stores in the RAM recorded data obtained by converting an image output from the camera into JPEG format. Also, the CPU outputs recorded data for the SD card, which is obtained by compressing the recorded data recorded in the RAM, to the SD card interface. Here, the recording data for the SD card is in JPEG format, and the amount of data can be reduced to about 1/10 or 1/20 of the recording data recorded in the RAM. The SD card interface writes input recording data for the SD card to the SD card. Also, the CPU outputs recorded data for communication, which is obtained by compressing the recorded data recorded in the RAM, to the LAN interface or the mobile communication interface 52 . The LAN interface or mobile communication interface 52 packetizes the input recording data for communication and transmits the packet to the destination via the Internet. In the case of event recording as well, the control unit records JPEG format recording data in the RAM and SD card. As described above, recorded data in constant recording and recorded data in event recording are respectively stored in corresponding folders of the SD card.

During continuous recording, it connects to the Internet via the base station and transfers the recorded data to the destination. The communication speed of mobile communication for mobile terminals is not uniform. For example, it is about 10 Mbps in rural areas and about 2 Mbps in urban areas. Otherwise, the transmission will not be completed in time. Therefore, the control unit generates and transmits recorded data for communication by compressing the recorded data recorded in the RAM. 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 running, there may be a period during which communication is disabled. For example, when the base station is switched, or when entering an area with a large amount of traffic. In this case, the recording data cannot be transferred during the communication disabled period. In other words, there is a part that cannot be transmitted in the recorded data.

The control unit restarts data transfer from the recorded data that is currently being recorded when the communication becomes possible from the disabled state. In other words, the recorded data in which the communication-disabled part is missing is transferred to the transmission destination. When the engine is turned off and the ACC power source is turned off, the constant recording ends and the part that could not be transmitted is transmitted. Next, the event recording portion is transmitted.

When the controller receives a battery switching signal indicating that the power source has been switched to the internal battery 34 from the monitoring battery 3, the controller measures the communication speed. The control unit transmits recorded data at a bit rate corresponding to the communication speed. For example, when the communication speed is 100 Mbps, 100 Mbps recorded data is transmitted. Specifically, the CPU compresses the recorded data recorded in the RAM to a predetermined bit rate. Next, the CPU outputs the compressed recording data for communication to the LAN interface or the mobile communication interface 52, whichever has the faster communication speed. On the other hand, when the communication speed is slower than the reference value, the control unit compresses the picture record data recorded in the RAM into picture record data of a bit rate equivalent to that when the ACC power supply was on, and transmits the data. When the ACC power supply is ON, it is possible to lengthen the image time with respect to the transmission time by reducing the amount of recorded data per unit time.

<Modified example 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 method of writing to the SD card is the same as method 1, the explanation is omitted. In Method 2, when communication becomes possible, data is transferred from the time when communication becomes impossible, instead of the current recorded data. In other words, time-series data is transferred to the destination. When the engine is turned off and the continuous recording ends, the part that could not be transmitted is transmitted. Next, the event recording portion is transmitted.

Next, method 3, which is a modification of the data transfer method, will be described with reference to FIG. Since the method of writing to the SD card is the same as method 1, the explanation is omitted. In method 3, data transfer for constant recording and data transfer for event recording are executed in parallel during constant recording. When the communication becomes possible, the recorded data until the communication becomes impossible is transferred instead of the current recorded data. That is, the time-series recording data of the constant recording and the recording data of the event recording are transferred to the transmission destination. When the engine is turned off and the constant recording ends, the portion of the recording data of the constant recording that could not be transmitted and the portion of the recording data of the event recording that could not be transmitted are transmitted.

As described above, the drive recorder 4 can receive power from the monitoring battery 3 and transmit recorded data that could not be transmitted while the ACC power is ON after the ACC power is turned OFF.

Next, another example of the drive recorder is shown. This is also a variant of the data transfer method. A data transfer method and its configuration will be described with reference to FIGS. 19 to 22. FIG. It should be noted that configurations similar to those of the above embodiment will be described using the same names and symbols. In the methods 1 to 3 of the data transfer methods described above, it has been explained that the recorded data that could not be transmitted due to the occurrence of the communication disabled period is transmitted after the engine is turned off. In method 4, the drive recorder 4 combines the recorded data that could not be transmitted with the real-time recorded data and transmits them while the engine is ON.

First, the configuration of the drive recorder 4 will be described with reference to FIG. The drive recorder 4 includes a camera 42, a microphone 43, an SD card interface 47, a mobile communication interface 52, a storage compression unit 44, a communication compression unit 45, an audio compression unit 46, an image buffer 48, an audio buffer 49, a communication It has a data creation unit 50 and a ring buffer 51 . The compression unit for storage 44 and the compression unit for communication 45 correspond to the above-described "recorded data codec for writing to the SD card" and "recorded data codec for transmission from the LAN interface or mobile communication interface". It is realized by Storage compression unit 44 and communication compression unit 45 output the compressed image data to SD card interface 47 and image buffer 48, respectively. Incidentally, the communication compression unit 45 detects the current communication rate, automatically changes the data volume to a data volume that can be transmitted in real time as much as possible, and generates image data, which is video data. When performing compression, the communication compression unit 45 acquires, for example, the communication rate measured by the mobile communication interface 52, and compresses the image data at a compression rate corresponding to the acquired communication rate. The SD card interface 47 has two SD card slots into which SD cards 61 and 62 are inserted. storage compression unit 44, communication compression unit 45,
A part of the audio compression unit 46, SD card interface 47, image buffer 48, audio buffer 49, communication data creation unit 50, ring buffer 51, and mobile communication interface 52 may be realized by SOC (System On a Chip).

The audio compression unit 46 compresses audio data collected by the microphone 43 into audio data in MP3 format, and outputs the compressed audio data to the SD card interface 47 and the audio buffer 49 . Image buffer 48 and audio buffer 49 buffer compressed image data and audio data, respectively. The communication data creation unit 50 reads the compressed image data and the compressed audio data from the image buffer 48 and the audio buffer 49, respectively, creates communication data, adds information of the created date and time to the created communication data, and saves it in the ring buffer. 51. The ring buffer 51 buffers four pieces of communication data to which information on the date and time of creation has been added. The mobile communication interface 52 reads communication data from the ring buffer 51, packetizes it, and transmits it to the destination.

The SD card interface 47 writes the compressed image data and audio data output from the storage compression section 44 and the audio compression section 46 to the storage area of the SD card 61 or SD card 62 . Here, the SD card interface 47 divides the storage area into a storage area and a communication area for each of the SD card 61 and the SD card 62, and writes the recorded data. The storage area is an area for keeping the image clean, 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 saving all or part of communication data that could not be transmitted. As described above, in an area where the communication speed is slow, the communication data is compressed according to the communication speed because the communication data, which is the recorded data to be transmitted, cannot be transmitted in time unless the data amount is reduced. The clear leaving area is an area for leaving recorded data whose compression rate is lower than that of communication data and whose image is clear at the time of reproduction. It should be noted that the SD card interface 47 has an upper limit for each of the "constant recording", "G sensor recording", "one-touch recording", and "parking surveillance recording" in each of the storage area and the communication area. Decide the capacity of 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 to the communication area of the SD card 61 or SD card 62 . Also, 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 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. 20, "image data" indicates image data output by the communication compression unit 45, "audio data" indicates audio data output by the audio compression unit 46, and "communication data" is created by the communication data creation unit 50. communication data to be used. The horizontal axis of data is the time axis. Image data consists of I frames and P frames. Here, the I frame is data that can be reproduced independently, and the P frame is differential data from the image data of the preceding frame. The image data has one I frame and multiple P frames. The communication compression unit 45 assigns a serial number, which is additional information, to each frame in order from the first frame. The serial number is an identifier that indicates the chronological order. The audio compression unit 46 divides the audio data into sections corresponding to the I frame of the image data and the next I frame, 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. Communication data is data in which I frames, voice data, and P frames are arranged in sequence.

The communication compression unit 45 creates three I frames in 1s. 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 marks to the audio data in synchronization with the communication compression unit 45 converting it into an I frame. The communication data generating unit 50 first reads an I frame from the image buffer 48, then reads one section of audio data from the mark corresponding to the I frame to the mark corresponding to the next I frame from the audio buffer 49, and then reads the next I frame. Then, P frames up to the next I frame are read from the image buffer 48, and communication data is output to the ring buffer 51 with each read data as one communication unit. The ring buffer 51 sequentially buffers communication data of one communication unit, and when the memory area becomes 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. A ring buffer 51 stores a plurality of pieces of communication data for one communication unit. It should be noted that the transmission destination is provided with a reproduction device capable of receiving and reproducing the communication data, so that the received communication data can be reproduced to view video or listen to audio. Also, when receiving an I frame, which is part of the communication data, the playback device can play back a still image based on the I frame. Also, when receiving an I frame and voice data, which are part of the communication data, the playback device can play back a still image and voice based on the I frame. In this case, when the voice data is received halfway, the voice of the received section can be reproduced. Also, when receiving part of communication data, i.e., I frames, audio data, and P frames, the reproducing device can reproduce video and audio based on up to the received P frames.

The configuration of the communication data described above can be applied not only to the method 4, but also to the methods 1 to 3.

Next, communication processing executed by the CPU to transfer recorded data to a 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 through communication processing may be referred to as real-time transfer. When the continuous recording is started, the CPU starts communication processing. First, the CPU causes the mobile communication interface 52 to read the communication data buffered in the ring buffer 51 (S1). The communication data here means communication data of one communication unit, and the same applies to the following description. Next, the mobile communication interface 52 is caused to transmit communication data (S3). As a result, the constantly recorded data is transferred to the destination in real time. Next, after a predetermined time has passed, it is determined whether or not the transmission of the mobile communication interface 52 has succeeded (S5). Here, the predetermined time is a time equal to or less than the reproduction time of communication data. Since communication data is generated one after another during constant recording, communication data that could not be transmitted accumulates unless transmission is performed within a time equal to or less than the reproduction time of communication data. In order to transfer the data in real time while always recording, it is necessary to complete the transfer of the communication data of one communication unit within the reproduction time of the communication data of one communication unit. When the transmission fails, the CPU stores in the SD cards 61 and 62 the I frame, the P frame, and the audio data for one section for which the communication data could not be transmitted. The mobile communication interface 52 further divides the communication data, packetizes it, and transmits it. When there is an error in packet transmission, retransmission processing is also performed to retransmit the packet that could not be transmitted due to the error. For example, when communication data of one communication unit cannot be transmitted due to frequent occurrence of reproduction processing due to poor radio wave conditions, etc., the communication data which could not be transmitted are stored in the SD cards 61 and 62.例文帳に追加If the mobile communication interface 52 has successfully transmitted one communication unit of communication data, the CPU determines that the transmission has succeeded. When the CPU determines that the transmission has succeeded (S5: Yes), the process proceeds to step S7 to transmit the next communication data. On the other hand, when the CPU determines that the transmission has failed (S5: No), the I frame, P frame, and audio data for one section of the communication data that could not be transmitted to the SD card interface 47 are transferred from the ring buffer 51. The data is read out and stored in the SD card 61 or SD card 62, and the failure to transmit is stored in the RAM (S9), and the process proceeds to step S7. If the I frame cannot be transmitted, the I frame, which is communication data for one communication unit,
A frame, a P frame, and audio data for one section are stored. If all the audio data for one section cannot be transmitted, the audio data for one section and the P frame are stored. When all of a plurality of P frames cannot be transmitted, the P frames that could not be transmitted are stored. If the communication data cannot be transmitted within the reproduction time of one communication unit (S5: NO), the next one communication unit of communication data is transmitted (S1, S3). The destination cannot receive the communication data of one communication unit. If the communication data can be received, the communication data for one communication unit can be reproduced. Even if one communication unit of communication data cannot be transmitted, the invisible interval can be limited to the real time of one communication unit, which is 1/3 s in the above example.

In step S7, it is determined whether or not communication data has ended. 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 to the next position, and the created date and time information attached to the communication data at that position is changed to the created date and time information attached to the communication data read in step S1. If it is older than , it is determined that the communication data has ended. When it is determined that the communication data has ended (S7: Yes), the communication processing ends. 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 reading position of the moved ring buffer 51 .

The CPU reads all or part of the communication data that could not be transmitted in the communication process from the SD card 61 or SD card 62 and transmits the data when communication is restored and communication becomes possible. In addition, 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 SD card 61 or the SD card 62, whichever medium is not recorded, and transferred at the same time, as will be described later. Here, since the SD card interface 47 is writing recording data for storage during constant recording, writing of recording data and reading of communication data are executed at the same time. It is difficult to execute writing and reading in parallel to one SD card. Therefore, in method 4, two SD cards are used to write data for storage and to read communication data that could not be transmitted. When the communication data cannot be transmitted, for example, when the base station is switched, or when entering an area with a large amount of communication, a communication interruption occurs, as described above.

In FIG. 22 , the horizontal axis is the time axis, and “recorded data” indicates the communication data and storage data created by the communication data creating section 50 . Here, the storage data is the compressed image data and audio data output from the storage compression section 44 and the audio compression section 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 SD card 62, respectively. The shaded area indicates the period during which communication data is written to the SD card 61 or SD card 62 . However, during the periods indicated by the rectangular figures of "storage medium 1 data recording" and "storage medium 2 data recording" in FIG. , there is a period in which writing is not performed between periods in which writing is performed. In the period indicated by the rectangular figure of "storage medium 1 data recording" in FIG. 22, the writing of storage data and the writing of communication data are performed. In the "communication connection state", an arrow indicates a period during which the mobile communication interface 52 can communicate. “Real-time transfer in communication” indicates a period during which communication data is transmitted in communication processing. "Unsent data transfer" indicates a period during which communication data that the mobile communication interface 52 could not send in communication processing is being sent.

During the period of continuous recording, the SD card interface 47 alternately switches the write destination of the storage data between the SD card 61 and the SD card 62 at predetermined time intervals (for example, every 10 seconds), and writes the data in a time division manner. As a result, while one of the SD cards 61 and 62 is being written to, the other is not being written to, so 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 recorded 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. . During 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 disabled, the SD card interface 47 writes data for storage to the storage area and writes 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 for writing the save data. Step S9 of the communication process is performed during idle time when the data for storage is not written to the storage area. At time t4, when communication becomes possible, the CPU transfers all or part of the communication data that was written to the SD card 62 because it could not be sent to the SD card 62, as indicated by the shaded area in FIG. Read and send. More specifically, upon receiving a signal from the mobile communication interface 52 indicating that communication has become possible, it is determined whether or not the failure of transmission is stored in the RAM, and if it is determined that failure of transmission is stored. , it is determined whether or not 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. read and transmit all or part of the communication data stored in the The time for transferring the communication data is shorter than the time for writing the communication data to the SD cards 61 and 62.例文帳に追加A period from time t4 to time t5 during which communication data is transferred is shorter than a period from 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, the SD card interface 47 writes data for storage to the SD card 61, so all or part of the communication data is read from the SD card 62 to which writing is not performed. Next, at time t5, when the write destination is switched to the SD card 62, 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 the communication data that could not be transmitted during the communication disabled period from time t6 to time t7, when communication becomes possible at time t7, the CPU transfers the communication data from the unwritten SD card 62. read and transmit all or part of the Next, at time t8, when the write destination switches to the SD card 62, the CPU causes all or part of the communication data that could not be transmitted to be read from the SD card 61 and transmitted. For example, if the actual time required for photographing for one communication unit is 1 s, and the predetermined time for switching the write destination of the storage data is 10 s, one cycle of steps S1 to S7 of the communication processing is performed 10 times in 10 s. done. In FIG. 22, for example, at time t2, the time when the communication connection state becomes communication disabled and the start time of the period in which the communication data is written to the SD card 62 indicated by the hatched portion are shown as the same time. However, in more detail, since step S9 is executed after step S5 is executed after communication is disabled, the communication data is written to the SD card 62, but the communication connection state is It will be later than the time when it became impossible.

Although not shown in FIG. 22, if all communication data cannot be transmitted while the engine is ON, after the engine is turned OFF, power is supplied to the drive recorder 4 from the monitoring battery 3, and the remaining communication data.

Since the period during which communication is disabled is indefinite and it is not known where the communication will be cut off, communication may be disabled during execution of step S3 of the communication processing. Here, the communication data is transmitted to the destination from the beginning. That is, I frames, audio data, and P frames are transmitted in this order. If communication becomes impossible in the middle of the P frame, the I frame and voice data have been transmitted to the destination. Since the I frame is data that can be reproduced independently, the destination can reproduce at least still images and audio data. Also, communication data that cannot be transmitted due to communication failure will be transmitted later, so that the transmission destination will receive communication data that is not arranged in chronological order. Since a serial number is assigned to each frame of the communication data, the transmission destination can easily reproduce the communication data in the transmitted section by sorting the data in serial number order after receiving all the communication data. A typical moving image file has management areas for managing allocation of data areas at the beginning and end of the file. Since the management area is essential for playing back the moving image file, the moving image file cannot be played back if the trailing management area is not sent to the destination. In this regard, since the communication data does not have a management area, the transmission destination can reproduce the communication data in the transmitted section as described above. Further, since communication data of one communication unit has one I frame, even when communication data of one communication unit cannot be transmitted, 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 whether or not to execute recording to the SD card and data transfer for each "data item" and "data content". As shown in FIG. 23, the "data item" includes "constant 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. Of these, the "data contents" of "constant recording", "G sensor event recording", and "one-touch event recording" include "video data", "audio data", "GPS", "acceleration sensor", "vehicle information There is. The "data contents" of the "history" include "GPS", "acceleration sensor", and "vehicle information". The CPU acquires the vehicle position output from the GPS sensor, the acceleration output from the G sensor, and the OBD connection cable during the period of "constant recording", "G sensor event recording", and "one touch event recording". The vehicle information obtained is recorded in the RAM together with the date and time. "GPS", "acceleration sensor", and "vehicle information" of "data contents" are vehicle position, acceleration, and vehicle information recorded together with date and time, respectively. When the "GPS", "acceleration sensor", and "vehicle information" are transferred to the transfer destination via the LAN interface or mobile communication interface 52, the CPU detects the vehicle position and acceleration for each frame or 1s of video data. , delimit and transfer vehicle information data.

"Recording" in the "setting" shown in FIG. 23 means storing recorded data in the SD card. “Transfer” means transfer of recorded data to a destination via the LAN interface or mobile communication interface 52 . "O" in FIG. 23 indicates a setting to execute "recording" or "transfer", and "X" indicates a setting not to execute. The non-volatile storage unit of the drive recorder 4 stores settings with parameters "o" and "x" corresponding to "data item", "data content", "record" and "transfer". The drive recorder 4 accepts the above setting on the setting screen, for example, and executes "record" and "transfer" in the case of "o". The driver of the vehicle may be different from the administrator who views the "recorded" or "transferred" data, for example managing the vehicle. In this case, the driver may wish not to "record" or "transmit" all "data content". It is possible to provide a drive recorder 4 that can be set in accordance with the intentions of both the driver and the administrator by accepting the setting of "recording" or "transfer" in detail for each "data item" and "data content". can. The user can make settings according to the operation method of the drive recorder 4 and needs. Furthermore, if there is "data content" that is not recorded during continuous recording, G-sensor event recording, or one-touch event recording, it is preferable to configure the display 41 to indicate that it 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 communication means, and the CPU 33 is an example of a controller. "Resolution" and "number of recording frames" that can be selected on the setting screen are examples of the first setting function, and "surveillance recording setting" that can be selected on the setting screen is an example of the second setting function. "G-sensor setting" is an example of the third setting function. The input/output connector 4a is an example of device communication means, the camera is an example of photographing means, the SD card is an example of a storage medium, the operation buttons are an example of a user interface, and the GPS sensor is an example of positioning means. Yes, and the non-volatile recording unit is an example of the recording means. The battery switching signal is an example of a "switching signal indicating that the power source has been switched to the battery", and the vehicle switching signal is an example of "a signal indicating that the power source has been switched to the vehicle". The power cable 11 is an example of a "vehicle-this device feeder line", and the cable 12 is an example of a "this device-vehicle device feeder line". 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 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 are obtained.
The monitoring battery 3 can continue to supply power to the drive recorder 4 even when power supply from the vehicle is interrupted. In addition, although the drive recorder 4 generates heat from the inside of the housing, the monitor battery 3 is separate from the drive recorder 4, so it is less susceptible to the heat generated from the inside of the drive recorder 4. FIG. By making it difficult for the temperature of the internal battery 34 to rise, it is possible to suppress the impossibility of charging and discharging due to the temperature rise, and it is possible to prevent the impossibility of supplying power to the drive recorder 4 . Since the monitoring battery 3 is installed under the seat, the capacity of the internal battery 34 can be increased because the monitoring battery 3 can be made large and heavy enough to be installed under the seat. 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 occupy the living space, and does not hit or interfere with people while in the vehicle, during driving operations, or when getting in and out of the vehicle. , can be installed.

When the power supply source is switched to the internal battery 34, the CPU 33 outputs a switching signal. Further, when the ACC power supply is turned on within the specified time, the CPU 33 outputs a switching signal notifying that the power source has been switched to the ACC power supply. As a result, the drive recorder 4 can know that the power 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. As a result, the user does not need to set the event recording in the constant recording mode and the event recording in the monitor recording mode separately, thereby reducing the user's annoyance and making it easier to understand.

The drive recorder 4 displays options in red for "recording time" and "number of recording frames" in the setting of monitoring recording in the monitoring recording mode. As a result, the user can set one of the "recording time" and the "number of recording frames" to be prioritized, and then set the other of the "recording time" and the "number of recording frames" as a recordable option. can be done. In addition, 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. If it is determined that the location information is included in the "surveillance my area" and the "surveillance recording setting" is set to "automatic", the recording conditions set in the "surveillance my area" will be used as the recording conditions for surveillance recording. Execute the process.
Similarly, when it is determined that the location information is included in the "surveillance my cancel area" in the transition state to the surveillance recording mode, the "surveillance recording setting" is "automatic", and the "REC" button is pressed. , the recording conditions set in the "monitoring my cancel area" are used as the recording conditions for monitoring recording, and the following processes are executed. As a result, the user can operate the drive recorder 4 without having to repeatedly set the settings. In addition, even if the position information does not match the position stored in the non-volatile storage unit, the drive recorder 4 will set the "monitored my area" if it is the "monitored my area" and the "monitored my cancel area". and the shooting condition associated with the "monitoring my cancel area" can be used as the current shooting condition.

After the engine is stopped, the drive recorder 4 receives power from the monitoring battery 3 and can reliably transmit the recorded data. When the ACC power supply is ON, it is possible to lengthen the image time with respect to the transmission time by reducing the amount of recorded data per unit time.

Electrical equipment equipped with a function to receive radio waves retrofitted to vehicles and antennas for reception are often installed on the dashboard or on the upper part of the windshield in many cases, but the monitoring battery 3 is installed under the seat. Because of this configuration, the influence of noise from the charge/discharge control unit 31, DC-DC converter 32, CPU 33, etc. on these electric components, antenna, etc. can be greatly suppressed.

Since one communication unit of communication data includes one I frame, the transmission data can be reproduced at the destination to which the transmission data is transmitted. The image can be confirmed by using the transmitted data as an image. When one communication unit of communication data is 1/3 s, an image can be checked at least every 1/3 s. For example, if the communication data is a picture of an accident at the time of a collision, the transmission destination can reliably check the video at the time of the accident. Also, in communication processing, even if the mobile communication interface 52 cannot transmit communication data, the SD card interface 47 can read the communication data that could not be transmitted from either one of the SD cards 61 and 62, which is not the storage destination. allows the mobile communication interface 52 to transmit. The destination to which the communication data is transmitted can acquire the communication data while the engine is ON. By switching the storage destination between the SD cards 61 and 62 and reading from one of the SD cards 61 and 62 that is not the storage destination, the SD card interface 47 can easily read the communication data.

<Modification>
It should be noted that although the above-described embodiment is a desirable form of the present invention, it is not limited to this, and it is needless to say that various improvements and modifications are possible without departing from the scope of the present invention.
For example, the option value of "recording resolution" in the "monitoring recording setting" may be lower than the option value of "recording resolution" in the constant recording setting. Alternatively, the option value of the "number of recorded frames" in the "monitoring recording setting" may be set lower than the option value of the "recording frame number" in the setting of constant recording. In addition, of the options for "recording resolution" and "number of recording frames" in the "surveillance recording settings" and continuous recording settings, the initial values are clearly displayed, and the "recording resolution" and "recording The initial value of "number of frames" may be lower than the initial value in the setting of constant recording. In surveillance recording, the vehicle often does not move, so moving objects outside the vehicle can be captured even if the frame rate and resolution are reduced. Also, since event recording can be performed by setting, when an event occurs, it is recorded. As a result, power saving can be set as the recording condition for monitoring recording. Since the amount of electric power supplied by the internal battery 34 is reduced, the internal battery 34 can be made to last longer.

Also, although it has been described that the monitoring battery 3 receives power from the ACC power through the power cable 11 connected to the cigarette lighter socket of the vehicle, the present invention is not limited to this. The power 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. Also, although the output terminal 11a and the input connector 3a are miniUSB connectors, they may be USB connectors other than miniUSB. Also, although the input/output connector 3b and the first terminal 12a are described as being 10-pin connectors, the number of pins is not limited to 10, and the number of pins may be more or less. Also, although the DIP switch DIPSW 36 has been described as having three switches, the number of switches is not limited.

Also, although it has been described that the monitoring battery 3 is powered from the ACC power supply via the power cable 11, the present invention is not limited to this. A configuration in which a mobile battery is connected may be used.

Also, although it has been explained that the monitoring battery 3 outputs a signal indicating the remaining battery capacity of the internal battery 34 every 1 second, the time is not limited to 1 second, and may be 1 minute or 3 minutes.

Further, it has been explained 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 . In this way, when there is a change in the state of power supply from the ACC power supply, a signal to that effect may be transmitted to the drive recorder 4. However, the signal indicating the presence or absence of power supply from the ACC power supply may be sent for one second, for example. It is preferable to transmit to the drive recorder 4 at predetermined time intervals such as intervals.

Further, it has been explained that when the drive recorder 4 receives a battery switching signal from the monitor battery 3 in the constant recording mode, it determines whether to switch to the monitor recording mode or to turn off the power of the drive recorder 4. Instead, it is better to make a decision based on a plurality of battery switching signals. For example, in the constant recording mode, if the battery switching signal is received a plurality of times in succession, it may be determined whether to shift to the monitoring recording mode. By doing so, it is possible to prevent switching between the constant recording mode and the monitoring recording mode when the supply of power from the ACC power source to the monitoring battery 3 is interrupted momentarily and then restored. Similarly, based on a plurality of vehicle switching signals from the monitoring battery 3, it is preferable to determine whether to shift to the constant recording mode.

In addition, when the vehicle switching signal is received from the monitoring battery 3 and constant recording is possible, the drive recorder 4 shifts from the monitoring recording mode to the constant recording mode and starts constant recording. You may make it transfer to recording mode.

As a configuration for resetting, the drive recorder 4 itself may perform the reset processing. 3 receives this signal, power supply to the drive recorder 4 is stopped for a predetermined period of time, and then power supply is restarted. In this way, switching from the monitoring recording mode to the constant recording mode can be performed by surely resetting by turning off the power, and the possibility of recording situations such as accidents in constant recording can be increased. can. For example, when transitioning from monitoring recording to continuous recording, by turning off the output from the monitoring battery 3 for a predetermined period of time, the hard reset of the drive recorder 4 is executed so that continuous recording can be reliably and normally started. Become.

The predetermined time for the monitor battery 3 to stop supplying power to the drive recorder 4 in order to reset the drive recorder 4 is such that the drive recorder 4 can be reliably turned off after the monitor battery 3 stops supplying power, for example. It is better to make it as long as possible. For example, if the drive recorder has a supercapacitor configuration in addition to the configuration described for the drive recorder 4, the power from the supercapacitor or the like may be used to set the time longer than the maximum time required to close the file. . For example, it is good to set it to about 3 seconds. The supercapacitor is charged while power is supplied to the drive recorder and discharged while power is not supplied to the drive recorder. Also, "closing the file" means, for example, completing the writing of data to the SD card.

However, in some cases, the user turns off the ACC power of the vehicle for parking, for example, and then turns on the ACC power of the vehicle and then turns it off again for an operation when the electric mirrors of the vehicle are retracted or the windows are forgotten to be closed. . In this case, the ACC power supply is repeatedly turned off, on, and off from the on state. If the timing of this second turn-off is within the period in which the monitoring battery 3 stops supplying power to the drive recorder, various problems may occur, such as being unable to continue monitoring recording. This is because, after the ACC power supply is switched from off to on and the monitoring battery 3 stops supplying power for a predetermined time for shifting to continuous recording, the ACC power supply may be off when power supply is resumed. Therefore, this predetermined time is a time during which the drive recorder can be reliably turned off after the power supply to the drive recorder is stopped, and it is preferable to set the time as short as possible. For example, it may be set to about 1.5 seconds. By shortening the OFF period of the monitoring battery 3 from 3 seconds to 1.5 seconds in this way, the probability that the period during which power supply to the drive recorder is stopped overlaps with the timing at which the ACC power supply of the vehicle is turned off is reduced. be able to. Together with this countermeasure, it is possible to shorten the non-recording period from monitoring recording by turning on the ACC power supply of a vehicle until the start of constant recording.

Further, as described above, the inventors have found that the ACC power supply of the vehicle may be repeatedly turned off, on, and off from the on state, so the following configuration may be adopted. When the power source is switched to the internal battery 34, the CPU 33 does not immediately transmit a battery switching signal to the drive recorder 4, but rather waits for a predetermined period of time when the ACC power source is turned on for a short period of time. On the condition that the ACC power supply of the vehicle continues to be off, the battery switching signal may be transmitted to the drive recorder after a predetermined period of time has elapsed. For example, the battery switching signal is transmitted to the drive recorder when the power supply from the ACC power source of the vehicle continues to be off for a predetermined period of time, for example, 20 seconds after the power supply from the ACC power source of the vehicle is turned off. It's good to try.

In addition, after the drive recorder is powered on, the controller performs various initialization processes, etc., and then starts constant recording. need. Furthermore, some drive recorders are designed to start recording in the constant recording mode first, depending on the configuration of the drive recorder. Therefore, the monitor battery 3 preferably transmits a signal indicating the presence or absence of power supply from the ACC power supply to the drive recorder at predetermined time intervals. may output a signal to the effect that power is being supplied from the vehicle to the drive recorder regardless of whether power is being supplied from the ACC power supply of the vehicle. This predetermined time may be, for example, about 10 seconds.

Further, although it has been described that the drive recorder 4 transmits a signal instructing the specified time when receiving the battery switching signal from the monitoring battery 3, the present invention is not limited to this. The drive recorder 4 may be configured to transmit a signal instructing the monitoring battery 3 to stop supplying power after a specified time has elapsed.

Further, although it has been described that the drive recorder 4 transmits a signal commanding the specified time when receiving the battery switching signal from the monitoring battery 3, the timing of transmitting the signal commanding the specified time is not limited to this. When the power of the drive recorder 4 is turned on, or when the set value of the specified time is changed, it may be configured to transmit at predetermined time intervals. The predetermined time is 1 s, 1 minute,
For example, 3 minutes.

In addition, although the CPU 33 determines that the drive recorder having a communication function is not connected when it does not receive the signal asking about the remaining amount of the internal battery 34, the received signal is not limited to the signal asking about the remaining amount. A signal or the like for commanding a specified time may be used. Also, the switch included 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 the drive recorder having the communication function is not connected.

Further, although it has been explained that the control unit displays the screens Sa14 to Sa17 and accepts the setting of the recording conditions, the present invention is not limited to this. A configuration having a function of automatically determining the maximum recordable time with priority given to the frame rate may be employed. When the control unit accepts a change in the setting value of the "number of recording frames" on the screen Sa20 transitioned from the screen Sa16, it calculates the "usable time" based on the setting value of the "number of recording frames". The option for the longest “recording time” that is equal to or less than the calculated “usable time” is determined as the setting value for the “recording time”. Alternatively, the configuration may be configured to have a function of automatically determining the maximum recordable time with priority given to the resolution.

In addition, after shifting to the "surveillance recording mode", it was explained that the screen Sa6 is displayed when the controller determines that the SD card remaining capacity is not sufficient and the "surveillance recording overwrite" is set to "OFF". It is not limited to this. In this case, since monitoring recording cannot be performed if there is no remaining capacity in the SD card, a screen may be displayed to inform the user by sound and display, and to select whether to erase the monitoring recording or not to perform the monitoring recording. Here, the monitoring recording record is recorded data recorded by monitoring recording.

Further, in the constant recording mode, when a battery switching signal is received from the monitoring battery 3, it has been described that the screen Sa1 or the like is displayed according to the setting, but the present invention is not limited to this. The configuration may be such that when the engine is turned off, the screen automatically transitions to the minimum necessary setting screen.

Also, although it has been described that the monitoring battery 3 uses the setting value transmitted by serial communication from the drive recorder 4 as the prescribed time, the present invention is not limited to this. Instead of serial communication, a 1-bit Hi/Low signal may be received and the time corresponding to the Hi/Low signal may be used as the set value. Specifically, the monitoring battery 3 receives a command indicating a specified time and a signal of Hi or Low. The monitor battery 3 stores in advance corresponding times such as 3 hours when the signal is Hi and 6 hours when the signal is Hi. The monitoring battery 3 sets the time corresponding to the Hi/Low of the signal to the specified time. In addition, the signal is not limited to 1 bit, and may be 2 bits or more.

Also, although it has been explained that the drive recorder 4 performs monitoring recording according to the set recording conditions of the "monitoring my area", the present invention is not limited to this. The drive recorder 4 may be configured to have a function of determining recording conditions for each of a plurality of "monitoring my areas", which are parking areas. The recording conditions include necessity/unnecessity of surveillance recording (parking surveillance), frame rate, recording time, and the like.

Also, although it has been described that the control unit stores JPEG format image data in the RAM, the format is not limited. MP4 format, MP2 format, H dot 264 format, H dot 265 format may be used.

In addition, although the controller transmits the recorded data at a bit rate corresponding to the communication speed, the bit rate of the recorded data to be transmitted is not limited to this. For example, if the communication speed is 100 Mbps, the data may be transmitted at 10 Mbps, although the transmission time will be longer.

Further, in the setting of monitoring recording in the monitoring recording mode, a configuration may be adopted in which "total capacity in folder" is added to the item of "recording time". "Total capacity in folder" indicates that surveillance recording is to be performed until the remaining capacity of the SD card is exhausted. Also, when the "recording time" is set to "the total capacity in the folder", the options are not displayed in red.

Further, although it has been described that the frame rate in event recording is about 30 fps and the resolution is finer to record details, the frame rate of event recording in monitoring recording may be lowered to coarsen the resolution. When a large vehicle passes by, the vibration is large and the event may be recorded. In places where large vehicles are passing, it is expected that in many cases people who would harm the vehicles will not pass. For this reason, event recording in monitoring recording may be considered safe, and the frame rate may be lowered and the resolution coarsened.

In addition, after the screen Sa6 is displayed, if the "SD" button or the "MENU" button is not operated within a predetermined time, it has been explained that the no-operation timeout occurs. If there is no remaining capacity, recording is not possible, so the user may be notified by sound and display, and a selection screen may be displayed to select whether to erase or not to record the monitoring recording.

Further, it has been explained that the control unit shifts to the monitoring recording mode when it determines that the condition for shifting to the monitoring recording mode is satisfied. Although it has been explained that the items of transition conditions include "my area" and "my cancel area", "time" may be added to these items. It is preferable to adopt a configuration in which it is determined whether or not to shift to the monitoring recording mode based on the set "time" and time. As a result, the user can, for example, perform surveillance recording only at night in "My Area". Further, apart from "my area" and the like, for example, it may be configured to determine whether or not to shift to the monitoring recording mode only by "time". For example, if you want to record from about 4:00 to 6:00 in the morning, you can input the time you want to shoot the most (5:00 in the morning), and the recording will always include that time. To select whether to give priority to the front side, the rear side, or the center when the battery remaining amount or the SD card capacity is insufficient. Allocating a recording time zone intensively to the one set with priority. As a result, the user can know whether it is a stray cat or a crow that is vandalizing the garbage in the garbage area in front of the car in the morning.

In addition, in the setting of "perform registration" of "monitoring my area", it has been explained that the location is registered based on the position information from the GPS sensor, but the present invention is not limited to this. A configuration may be adopted in which the position on the map is registered by designating the upper position.

Also, in surveillance recording, for example, motion detection may be used to automatically reduce the frame rate when there is no change in the video. Furthermore, it is also possible to increase the frame rate and record several seconds before the change occurs.

Also, in surveillance recording, event recording is not performed for 3 minutes after the start of surveillance recording when an event occurs when the door is opened or closed. It is good as By doing so, it is possible to exclude the portion where the event recording and the door recording due to the acceleration detected by the G sensor overlap based on the time when the recorded data is confirmed later.

Also, after displaying the opening screen, it was explained that the screen transitions to the screen that displays the message "There was an event recording during monitoring recording", but for a few seconds after the engine is turned off or a few seconds before the engine is turned on, event recording is not possible. However, a configuration may be adopted in which the occurrence of an event during the monitoring function is not notified when the engine is turned on.

In addition, in the monitor recording mode, the calculation method of the "usable time" displayed as the "monitor recording time" on the screen Sa4 is not limited to the above. Instead of the drive recorder 4 , the monitoring battery 3 may be configured to calculate the available supply time based on the current being supplied, that is, the current consumption of the drive recorder 4 . Alternatively, the monitoring battery 3 may be configured to calculate the available supply time from the remaining battery percentage and a predetermined fixed current value. Alternatively, the monitoring battery 3 may be configured to know the remaining battery percentage and the type of the drive recorder 4 through communication, and calculate the available supply time based on the current value determined from the type. The internal battery 34 may transmit the calculated available supply time to the drive recorder 4, and the controller may display the received available supply time to the right of "monitoring recording time:".

Further, the specification of the drive recorder 4 is preferably the configuration described above, but is not limited to this.
Although it has been described that the drive recorder 4 includes a camera, the camera unit including the camera and the main body including the control unit may be configured separately. In this case, the camera unit is installed on the windshield, for example, and the main body is installed, for example, on the dashboard.

Further, although it has been described that the drive recorder 4 includes a camera, it 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 halves, and signal processing is performed so that each of the halves is assigned to data captured by each of the two cameras. Combines two signals from the camera into one image. As a result, the amount of recorded data can be reduced, and in the case of transmission in particular, the time of recorded data that can be transmitted per unit time can be lengthened. Also, the number of divisions is not limited to two, and the number of divisions may be two or more.

Also, although the display 41 is described as being an LCD, it is not limited to this, and may be a touch panel. Alternatively, a configuration without a display may be used. If the product does not have a display, the user writes the settings on a recording medium such as an SD card, and inserts the SD card with the settings written into the drive recorder. The drive recorder operates by reading the SD card. It should be noted that the settings written in the SD card may be stored in a non-volatile storage unit for operation, or the settings stored in the SD card may be used as appropriate without storing them in the non-volatile storage unit. It may be configured to read and operate.

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

Although it has been described that the drive recorder 4 has a communication function, it may be configured without a communication function. In this case, it is not possible to set a specified time for continuing power supply after the supply of ACC power to the monitoring battery 3 is interrupted. It can only be powered by time.

Also, although it is described that the monitor battery 3 outputs for a specified time, the entire remaining battery power may be supplied.

Further, for example, a configuration in which the provided camera can move 360 degrees may be adopted. In this way, since it is possible to monitor the entire surroundings outside the vehicle, it is possible to strengthen the monitoring especially in the monitor recording mode. Further, for example, the drive recorder may have a LoRa (Long Range) wireless communication function, and may be operated by an attached remote controller capable of wireless communication. In this way, a user with a remote controller at a remote location can turn on/off monitoring recording, periodically transmit the recording time, switch recording settings, report the occurrence of an event, transfer a still image when an event occurs, and use the remote control. can be saved in Also, for example, if the drive recorder is configured to have a function capable of Wi-Fi communication, it can communicate with a communication terminal such as a smart phone. The recording data of the event recording may be transferred within the reach of Wi-Fi.

Further, although it has been described that the control unit provided in the drive recorder 4 includes a CPU, a ROM, a RAM, a non-volatile storage unit, etc., the control unit is not limited to this. For example, a configuration in which a PLD (Programmable Logic Device) or the like is provided and operates cooperatively may be employed.

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

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. The configuration is not limited to this, and the recording data stored in the SD card may be read and transmitted. Alternatively, the recording data for event recording and the recording data for constant recording may be transmitted in different ways. For example, recorded data of event recording to be transmitted may be read out from the RAM and transmitted. The RAM stores recorded data that is clearer than the recorded data stored in the SD card at the time of reproduction before being compressed for transmission. On the other hand, recorded data of constant recording may be read out from the SD card and transmitted. Since event recordings often include, for example, accidents, etc., a clearer image than the recorded data stored in the SD card is better for confirming the details of the accident. Further, after the ACC power supply is turned off, all recorded data including data already transmitted while the vehicle is running may be transmitted at a uniform bit rate so as to form a uniform image. Also, time and position information may be transmitted instead of recorded data of event recording. Also, after parking, the recorded data of the event recording may be transmitted first. Moreover, it is good also as a structure which transmits the recording data of monitoring recording. Moreover, it is good also as a structure which transmits the recording data of parking monitoring.

Further, the drive recorder 4 may be configured to have a function of outputting an instruction to change the direction of the camera provided. For example, if the garbage area is not directly in front of the parking lot but diagonally to the right of the parking lot, the drive recorder needs to be turned diagonally to the right to get to the garbage area, but the user does not change the direction of the camera. You may forget. Therefore, when the engine is turned off (or turned on), or according to the positional information determined by the GPS sensor, it is preferable to notify by voice or the like, "Please check the orientation of the drive recorder." The direction may be registered and the direction may be notified, or a voice memo may be recorded and played back. Furthermore, the configuration may be such that the direction of the camera is automatically moved by a motor.

Although the drive recorder 4 performs event recording according to a predetermined trigger, the trigger in the monitoring recording mode is not limited to the above, and the event recording may be performed using the operation of the incidental equipment of the parking lot as a trigger. Robots and parking lots may harm vehicles. Since the operation of the parking lot is related to the movement of others, the event recording may be performed using the operation of the incidental equipment of the parking lot as a trigger. In a gated parking lot, a gate opening/closing signal is received and event-recorded as a trigger. In a flap-type parking lot where a flap installed on the ground touches the underbody of the vehicle, the signal to raise and lower the flap is received and recorded as a trigger event. In the case of a mechanical multi-storey parking system, it is preferable to use a G sensor to record events using signals corresponding to lateral movement and vertical movement of the truck of the vehicle body. In this case, it is preferable to set the threshold value to such an extent that the level of acceleration that occurs when the vehicle is standing is detected as an event.

Further, although it has been described that the drive recorder 4 shifts to the monitoring recording mode according to the setting when receiving the battery switching signal in the constant recording mode, the present invention is not limited to this. Also, although it has been described that the drive recorder 4 performs event recording according to a predetermined trigger, the present invention is not limited to this. In the summer, when the car is parked, the inside of the car becomes scorching hot, so the upper part of the window may be slightly opened remotely. For this reason, the drive recorder 4 may be configured to switch to an event recording mode or monitor recording mode with the opening of the window as a trigger and perform monitor recording. By the way, "a little bit" means that the window should not be touched.

In the drive recorder 4, when the control unit determines that the SD card remaining amount is sufficient, the control unit determines that the battery remaining amount is not sufficient, and the "monitoring recording overwrite" is set to "ON". , the screen Sa5 (FIG. 5) is displayed, and as the remaining amount of the battery decreases, the screen changes to the screen Sa3 and the power is turned off. However, the present invention is not limited to this. When the internal battery 34 is about to run out during monitoring recording, it is configured to have a function of notifying a remote controller having a function of starting the engine of the vehicle so that the engine can be started and causing the vehicle to generate electricity to continue recording. can be Alternatively, the engine may be turned off again when the internal battery 34 is charged to some extent. If the recording continues for a predetermined time, the remote controller may display an inquiry instruction as to whether recording should be continued, and the recording may be continued when the continuation instruction is received.

Further, although the drive recorder 4 receives the battery switching signal in the constant recording mode, it shifts to the monitoring recording mode according to the setting and starts monitoring recording, but the present invention is not limited to this. Also, although it has been described that the drive recorder 4 performs event recording according to a predetermined trigger, the present invention is not limited to this. The drive recorder 4 may be configured to have a function of surveillance recording or surveillance recording triggered by the approach of the drone. This allows the drone to land in a parking lot and record collisions with vehicles. The approach of the drone may be detected by, for example, detecting radio waves emitted by the drone or performing image recognition.

Further, although it has been described that the drive recorder 4 shifts to the monitoring recording mode according to the setting when receiving the battery switching signal in the constant recording mode, the present invention is not limited to this. It may be configured such that it is interlocked with the map data of the navigation, and recording is automatically performed when the vehicle is parked in a high-risk area. The configuration may be such that when the vehicle is located in a high-risk area, the monitoring recording mode is entered. Alternatively, the recording condition may be set at a higher level than usual. Here, setting the recording condition to a higher level than usual means increasing the "number of recording frames" of the recording condition and recording in detail. The high-risk area is, for example, a high-theft area, a high-crime area, and the like, and is information published on the website of the Metropolitan Police Department, for example.

Further, although it has been described that the drive recorder 4 shifts to the monitoring recording mode according to the setting when receiving the battery switching signal in the constant recording mode, the present invention is not limited to this. Recording is performed when the vehicle is parked while the EV is being charged. Alternatively, the recording condition is set to a higher level than usual. In recent years, EV chargers have been installed in commercial facilities and the like. Since it may be easy to be tampered with while the EV is charging, it is effective to record it. It may be determined based on the area of the EV station in the map data, or may be determined by acquiring the state of charge of the vehicle from OBD (On-board diagnostics) or the like.

In addition, the drive recorder 4 may be configured to have a function of stopping monitoring video recording when the amount of light is such as in the middle of the night that an image cannot be captured. Power can be saved by controlling the power supply from the battery based on the determination of brightness by an optical sensor that is separate from the image sensor provided in the camera.

In addition, when the drive recorder 4 receives a battery switching signal in the constant recording mode, it shifts to the monitoring recording mode according to the setting, starts monitoring recording, and turns off the power when the monitoring recording time expires. It is not limited to this. The drive recorder 4 may be 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 recording monitoring when the amount of packets is large. good. A situation in which many packets flow even though the engine is turned off is likely to be a situation in which the vehicle's sensors have detected some movement around the vehicle, so recording is effective.

In addition, 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 central position of the "monitoring my area". was recorded in the non-volatile storage unit. If the location to be registered as the "monitoring my area" or "monitoring my cancel area" is an indoor parking lot, there arises a problem that it is difficult to acquire the location by the GPS sensor or the location accuracy is low. Therefore, for example, retroactively from the point in time when the registration operation was performed, the position that could be positioned, or the position that could be positioned with an accuracy higher than a predetermined level (which may be determined based on GPS positioning accuracy information). This should be the position to be registered. For example, position information (and positioning accuracy information) is acquired at predetermined time intervals (for example, 1 second), and the position information is stored as a position history. The position to be registered may be a position or a position that has been positioned with a predetermined accuracy or higher.

Various modifications and the like can be taken without being limited to the embodiment described above. 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 Modification 1 has an input connector into which an input cord of the monitoring battery is inserted, an input/output connector into which an output cord is inserted, a USB Type A connector, a dip It includes a switch, a plurality of LEDs, and the like. Here, the input cord corresponds to the power cable 11 in the monitoring battery 3. FIG. The output cord corresponds to cable 12 in monitor battery 3 . Although the power cable 11 of the monitoring battery 3 has a cigar plug at one end, it may have a red cord connected to an accessory power supply and a black cord connected to a metal part of the vehicle. The accessory power supply is an ACC power supply of the 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 to charge the connected smartphone. Hereinafter, the ACC power supply may be described as an accessory power supply.

Although the DIP switch DIPSW 36 of the monitoring battery 3 has been described as having three switches, the monitoring battery according to Modification 1 has four DIP switches as shown in FIG. The specified time can be set to 0.5 hours, 1 hour, 2 hours, 3 hours, 4 hours, 6 hours, or 12 hours by combining ON/OFF of the four DIP switches, or the specified time can be set by the DIP switches. Set not to set. In the description of the DIP switches in FIG. 25, up/down indicate ON/OFF of the DIP switches, respectively.

As shown in FIG. 26, the monitoring battery indicator according to Modification 1 includes six LEDs. The six LEDs are an LED that lights up when power is supplied to the monitoring battery from the ACC power supply, an LED that lights up while the internal battery is being charged, and four LEDs that light up according to the remaining amount of the internal battery. . It should be noted that the internal battery of the monitoring battery is constructed so that it can be replaced when its life is reduced. In addition, do not install the monitoring battery in locations that interfere with driving or air bag activation, locations exposed to hot air from air conditioners or heaters, locations exposed to direct sunlight, unstable locations, or where wiring is caught or the coating is rubbed. , Places where there is a possibility of disconnection or short circuit, and avoid installation near vehicle electrical equipment (including antennas, etc.).

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, the monitoring battery according to Modification 2 has eight DIP switches, a power switch, and display LEDs on the plane of the mechanism case, an input terminal on the left side, and an output cable on the front. Here, the input terminal corresponds to the input connector 3 a of the monitoring battery 3 . The output cable corresponds to cable 12 in monitor 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 and output from the monitoring battery are cut off. This allows the user to safely remove the monitor battery. Also, the DIP switch is installed closer to the bottom than the power switch.

Also, as shown in FIG. 28, the input cords connected to the input terminals are a red cord connected to the battery power supply of the vehicle, a yellow cord connected to the accessory power supply, and a black cord connected to the metal part of the vehicle. have The input code corresponds to the power cable 11 in the monitoring battery 3. FIG. In this way, the monitoring battery may be supplied with power from the battery power supply of the vehicle, which is always supplied with power regardless of whether the engine is ON or OFF, separately from the accessory power supply. may operate by receiving power from the Further, as shown in FIG. 29, the monitoring battery according to Modification 2 includes an LED that lights up when the engine is turned on and during operation of the monitoring battery.

The monitoring battery according to Modification 2 monitors the power supply of the battery power source of the vehicle, and stops power output from the monitoring battery when the voltage drops below a set voltage (hereinafter referred to as detection voltage). After the engine of the vehicle is turned off, like the monitoring battery 3, it outputs electric power for a specified time (hereinafter referred to as off-timer). As shown in FIG. 30, the detection voltage may be switched between 12V and 24V by three DIP switches. Any setting of 11.6V, 11.8V, 12V, or 12.2V is accepted in order to correspond to the case where the specification of the battery of the vehicle is 12V. Similarly, in order to correspond to the case where the vehicle battery specification is 24V, +0.2V, ±0V, -0.2V, and -0.4V settings are accepted for 24V. Here, by setting more than two set values on the negative side and one on the positive side with respect to the specification of the battery of the vehicle, the monitoring battery can continue to output even when the battery of the vehicle is low. you can As shown in FIG. 31, setting of the off-timer is received by three DIP switches different from setting of the detection voltage, similarly to the monitoring battery of the first modification. As shown in FIG. 30, among the eight DIP switches arranged in one row, three are assigned to set the detection voltage, three are assigned to set the OFF timer, and two are not used. Setting errors by the user are suppressed by arranging one not used between the three used for setting the detection voltage and the three used for setting the off timer.

Also, in the explanation of method 4 of the data transfer method, it was explained that the image data has a plurality of P frames for one I frame, but the image data may have no P frames. Also, although it has been explained that the communication compression unit 45 creates three I frames in 1s, 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 should be reduced for images with little movement, and the number of frames should be increased for images with rapid movement. Further, as described in 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 image data compression ratio according to the communication speed. Also, although it has been explained that the communication data is arranged in the order of I frame and voice data from the beginning, the position of the voice data is not limited. It may be arranged before the I frame or after the P frame.

Also, although it has been explained that a serial number is given to each frame, a serial number is given to communication data of one communication unit arranged in time series, and a serial number is given to each frame in one communication unit. Also good. For example, the first communication data of one communication unit is number 1, the second communication data of one communication unit is number 2, the P frame of the first communication data of one communication unit is number 1, and the next P frame is number 1. The second P frame of the communication data of one communication unit is also numbered 1, and the next P frame is numbered 2. In this way, it is possible to specify the frame based on the number of the frame of the communication data of the number of one communication unit. Further, the assigned identifier 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, or any combination of serial number, time and date may be used.

Also, in step S5 of the communication process, it was explained that the I frame, P frame, and one section of audio data for which communication data could not be transmitted are stored in the SD cards 61 and 62. The SD cards 61 and 62 may be configured to store communication data in units of communication. Further, when the communication is recovered and the data is transmitted again, the configuration may be such that the communication data is transmitted in units of one communication.

Also, it has been explained that the SD card interface 47 alternately switches the write destination of the save data between the SD card 61 and the SD card 62 every 10 seconds, for example, during the period of constant recording, but the period is not limited. No, but it is better to set the time longer than the time required to capture the communication data of one communication unit.

Further, it has been explained that all or part of the communication data written in the SD card 62 is read from the SD card 62 and transmitted because the data could not be transmitted. In step S9 of the communication process, it was explained that the data that could not be sent was stored in the RAM. is stored in the RAM, and when communication becomes possible, the information is referenced to identify the SD card that stores all or part of the communication data that could not be transmitted. It is good as

Also, in the explanation of FIG. 19 of another example of the drive recorder, it was explained that the communication compression unit 45 automatically varies the data volume according to the current communication rate. The change to enable real-time transmission in accordance with the current communication rate is not limited to the compression rate, and may be a configuration in which the frame rate is changed.

Further, although two SD cards are inserted in another example of the drive recorder shown in FIG. 19, the configuration may be such that one SD card is inserted. In this case as well, the drive recorder should be configured to divide the storage area of the SD card into a storage area and a communication area to write recorded data.

Also, as shown in FIG. 20, only one I frame may be inserted in one communication unit, but a plurality of I frames may be inserted. At this time, it is preferable to make it possible to specify which P frame group corresponds to which I frame. For example, the number of P frames for one I frame may be the same, or serial numbers may be assigned to all 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. A group of frames arranged in alternating order such as I frame, P frame, and so on may be used as one communication unit.

It would be nice to be able to set the frame rate. For example, 1 fps, 5 fps, and 10 fps are good. It is preferable to change the number of I-frames included in one communication unit according to the frame rate. It is preferable to increase the number of I frames to be included in one communication unit as the frame rate increases.

The configuration is not limited to the configuration of the above embodiment, and the configuration of the above embodiment and the configuration of the modification may be combined arbitrarily. Also, a part of the configuration of the above embodiment and a part of the configuration of the modification may be combined arbitrarily. Further, a part of the configuration described in "Means for Solving the Problems", a part of the configuration of the above-described embodiment, and a part of the configuration of the above-described modified example may be combined arbitrarily.

1 system 3 monitoring battery 3a input connector 3b input/output connector 4 drive recorder 4a input/output connector 11 power supply cable 12 cable 31 charge/discharge controller 34 internal battery 33 CPU
35 Indicator 36 DIP switch DIPSW
47 SD card interface 52 Mobile communication interface

Claims (3)

Pre-register areas where recording is not to be performed ,
When the vehicle is not receiving power from the ACC power source and the vehicle is located in a registered area where recording is not performed , from the constant recording mode, which is the recording mode when receiving power from the ACC power source. A system characterized by having a function of preventing transition to a monitoring recording mode, which is a recording mode when power is not supplied from an ACC power supply. Even when the position of the vehicle is in the registered area in which recording is not performed, the mode is shifted to the monitoring recording mode when the user inputs an instruction to shift to the monitoring recording mode within a predetermined period of time. 2. The system of claim 1, comprising the ability to cause A program for causing a computer to implement the functions of the system according to claim 1 or 2 .