JP6835306B2 - Equipment, in-vehicle equipment and systems - Google Patents

Description

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

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

Japanese Unexamined Patent Publication No. 2012-666744

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 the storage battery can be charged and discharged is limited, if the temperature rises due to direct sunlight, the upper limit of the chargeable and discharging temperature of the storage battery will be exceeded, and the storage battery will supply power to in-vehicle devices. It may not be possible.

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

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

In this way, even if the power supply from the vehicle is cut off, the 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 is stopped, the charging is stopped due to the stoppage of the vehicle drive source, the power supply from the vehicle battery is cut off, the vehicle is stopped, It is good to say that there are no people in the vehicle while parking. Even in such a case, the in-vehicle device can continue to operate by supplying power from the present device. In particular, in the case of the configuration (7) described later, in which the in-vehicle device operates for a period of power supply and stops the operation when the power supply is stopped, the in-vehicle device responds to the power supply stop after a predetermined period of time. Since the device stops operating, the in-vehicle device can be operated for a desired time. Further, for example, in the case of a configuration in which the in-vehicle device operates by supplying power from the vehicle battery while the vehicle drive source is stopped, the vehicle battery may run out, but the present device should be interposed between the vehicle and the in-vehicle device. Therefore, it is possible to make it difficult for the vehicle battery to run out even when the in-vehicle device is operated. When the battery runs out, it is possible to prevent, for example, a situation in which the starter motor of the engine cannot rotate, the engine cannot be started, and the vehicle cannot run.

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

Further, the in-vehicle device should be installed in a place where it receives heat from the outside, and the present device should be installed in a place where it is difficult to receive heat from the outside. As the outside, for example, direct sunlight, an engine, etc. may be used. The in-vehicle device can be installed in a position where it receives direct sunlight, and it is preferable that this device can be installed in a position where direct sunlight is blocked. In particular, the in-vehicle device may be installed near the glass between the outside and the inside of the vehicle, and the device may not be installed near the glass. The in-vehicle device may be not only a device that is installed in the vehicle integrally with the vehicle in advance, but also a device that is separate from the vehicle and is installed later in the vehicle.

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

The drive recorder is installed near the glass in order to photograph the outside of the vehicle through the glass such as the windshield. However, the vicinity of the glass is also a place where the temperature tends to rise due to direct sunlight. Therefore, by installing the battery in a place where direct sunlight is blocked, it is possible to prevent the temperature of the battery from rising. Further, by installing the present 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 that charging and discharging become impossible due to the temperature rise, and it is possible to make it difficult for the in-vehicle device to be unable to supply power. The in-vehicle device can continue to operate even after the power supply from the vehicle is cut off.

(3) The in-vehicle device does not have a battery, or has a battery smaller than the battery and is installed in a place where the size and weight are limited, which is due to the size and weight restrictions of the in-vehicle device. It is recommended that the battery be installed in a place with few restrictions.

By doing so, the present device can be made large and heavy, so that 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 may be installed in a place where the size is limited at the time of installation, for example, a windshield whose installation range is defined by law. Further, the in-vehicle device may be installed at a position where it may fall due to its weight, a surface not parallel to the floor surface of the vehicle, for example, on a windshield or a dashboard.

(4) The size and shape of the vehicle should be such that it is installed at a position that does not overwhelm the living space of the vehicle.

In this way, it is good because it does not hit a person and does not get in the way during driving operation and getting on and off the vehicle while riding in the vehicle. The inventors have found that the positions having the configurations (2), (3), and (4) should be, for example, under the seat, such as in the trunk room and under the dashboard.

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

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

(6) The device includes a communication means for communicating with the in-vehicle device and a control unit, and the charge / discharge control unit switches the power supply source to the in-vehicle device from the battery to the vehicle when the power supply from the vehicle is resumed. , The control unit signals that the power supply source has been switched to the vehicle when the charge / discharge control unit switches the power supply source to the in-vehicle device from the battery to the vehicle while the power supply source to the in-vehicle device is the battery. Hereinafter, it is preferable that the vehicle switching signal) is output by the communication means.

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

(7) It is preferable that the in-vehicle device is supplied with power from the present device and operates during the period during which the power is being supplied, and is stopped when the power supply is stopped.

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

(8) The in-vehicle device has a first continuous recording function, which is a function of recording when receiving power from the vehicle, and a recording when a predetermined event occurs while receiving power from the vehicle. A predetermined event occurs even when the first event recording function, which is a function to perform the event, the second constant recording function, which is a function to record when the power is received from the battery, and the power supply from the battery are received. The second event recording function, which is a function to record when the event is performed, the first setting function for setting the first constant function, the second setting function for setting the second constant function, and the setting for the first event recording. It is preferable to have a configuration including a third setting function for setting the setting of the second event recording in common.

The user may find it annoying to have a number of settings, and it may be difficult to grasp them. By setting the setting as the third setting function in which the setting of the first constant function, the setting of the second constant function, the setting of the first event recording and the setting of the second event recording are set in common, the user feels annoyed. It can be reduced and it can be easily grasped. The in-vehicle device can operate with the optimum settings according to the applied state.

It should be noted that other than the configuration of (8) can be taken. For example, a setting function for setting the first constant function, a setting function for setting the first event function, a setting function for setting the second constant recording setting and the second event recording setting in common, and a setting function. It is also good as a configuration including.

(9) The in-vehicle device includes a wireless communication function and a creation 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 captured by the photographing means. Of the plurality of frames included in the communication data of one communication unit, at least one frame may be configured to include 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 the one communication unit included in the communication data of the one communication unit can be reproduced independently. The moving image may be, for example, image information in which still image information is arranged in chronological order, which has information such as 30 frames in 1 s. One communication unit may be, for example, a group divided based on time, number of frames, data capacity, and the like. The communication data of one communication unit may be, for example, data delimited by a certain time period, data up to a certain number of frames, data exceeding a certain data capacity, or the like. The data length of the communication data of one communication unit may be a variable length or a fixed length. The communication data for one communication unit may have a variable number of frames, but may have a fixed number of frames. The number of frames of communication data in one communication unit may be, for example, a plurality, and the reference frame in the plurality of frames may be a plurality, but it is particularly preferable to set the number of reference frames to one. However, for example, when a configuration has a plurality of reference frames in the communication data of one communication unit, nothing can be received for the period of one communication unit as long as only one reference frame in the plurality of reference frames can be received. There is no such thing as no video. For example, a playback device including a receiving means for receiving communication data of one communication unit transmitted by an in-vehicle device and a playback means for displaying an image on a display means based on the received communication data of one communication unit. It is good to have a configuration to prepare. According to such a playback device, it is possible to reproduce a video based on communication data of one communication unit transmitted by an in-vehicle device. The user can see the played video.

(9-1) The in-vehicle device may be configured to repeat the creation of the communication data of the one communication unit by the creation means and the transmission of the created communication data of the communication unit by the wireless communication function. In this way, when the shooting means continuously shoots, the continuous image can be transmitted. The creation of communication data for one communication unit and the transmission of communication data by the wireless communication function may be performed as separate processes. For example, 10 communication data of 1 communication unit may be created, communication data of 10 communication units may be created, and then the communication data of the 10 communication units may be transmitted 10 times for each communication unit. However, once the communication data of one communication unit is created, the communication data of the created communication unit may be transmitted. Further, one communication unit may be created based on the same standard for each repeating unit. The standard may be, for example, based on the above-mentioned time, number of frames, data capacity, etc., and may be a constant quantity for each repeating unit. If the communication data of one communication unit cannot be transmitted, the entire communication data of the one communication unit may be resent. However, it is advisable to do the following (9-3).

(9-2) The in-vehicle device may be configured to store the frame that could not be transmitted and transmit the frame that could not be transmitted among the communication data of the one communication unit. 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 may be assigned to a frame before transmission, and if transmission cannot be performed, the identifier of the frame that could not be transmitted is recorded to identify the frame that could not be transmitted. good. Also, if an identifier such as a serial number is assigned to the communication data of one communication unit and transmission is not possible, the identifier of the communication data that could not be transmitted and the frame number that could not be transmitted. May be recorded to identify frames that could not be transmitted. Further, the identifier may be, for example, a date, a time, or the like. Of the plurality of frames included in the communication data of one communication unit, the frame next to a certain frame may be used as the difference data from the previous reference frame. However, it is advisable to do the following (9-3).

(9-3) The in-vehicle device is configured such that, of the plurality of frames included in the communication data of one communication unit, the frame next to a certain frame is a difference frame which is the difference data from the frame one frame before. good. For example, when a certain frame is used as a reference frame, the next frame of the certain frame is a difference frame with respect to the reference frame. For example, if a frame is a difference frame, the next frame of the frame is a difference frame with respect to the frame created by the difference frame. In this way, the amount of communication data can be reduced as compared with the case where all frames are used as reference frames. In addition, the frame following the difference frame may also be a difference frame. In particular, since the frame included in the communication data of one communication unit includes a reference frame as a certain frame, the video of the period of the one communication unit can be reproduced independently and the amount of data can be reduced. When the in-vehicle device is a drive recorder that shoots the outside of the vehicle while driving, the entire frame changes compared to shooting a place where the background does not change much, for example, a fixed-point camera, so the next frame of a certain frame is used. It is better to use the data of the difference from the frame one frame before, rather than the data of the difference from the previous reference frame. Further, the reference frame may be at the beginning of the communication data of one communication unit.

(9-4) The in-vehicle device is an in-vehicle device including a photographing means and a sound collecting means, and has a wireless communication function, and the image taken by the photographing means and the sound collected by the sound collecting means are combined with the wireless communication function. The communication data of one communication unit includes a means for creating communication data of one communication unit having a plurality of frames to be transmitted by, and the communication data of the one communication unit is, in order from the beginning, a reference frame, voice data, and 1 which can be reproduced independently. It is preferable that the configurations are arranged in the order of the difference frames showing the difference from the frame before the 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 seen at the transmission destination. Then, if the voice data can be received, the voice can be heard. Then, if the difference frame can be received, the moving image based on the difference frame can be viewed. The order of reception at the destination is still image, audio, and moving image, and when the communication data is, for example, the situation of the accident is photographed, the outline of the accident can be first seen by the still image. Then, the situation of the accident can be known by voice. Then, the details of the accident can be known from the video. Even if the communication is interrupted in the middle of the voice data, the recipient can at least see the outline of the accident. The playback device may also have a voice reproduction function, and may be configured to be capable of reproducing the voice for which communication data of one communication unit has been received. According to such a playback device, it is possible to reproduce voice based on communication data of one communication unit transmitted by an in-vehicle device. The user can listen to the reproduced sound.

(10) The in-vehicle device is an in-vehicle device provided with a photographing means, and has a switching function for switching the writing destination of data based on the image captured by the photographing means between a plurality of recording media and a radio for transmitting the data based on the image. If the data based on the video cannot be transmitted by the wireless communication function, the recording medium that stores the data based on the video that could not be transmitted is said to be in the period when the storage medium is not the writing destination. It is preferable to read the data based on the video that could not be transmitted and transmit it by the wireless communication function.

In this way, even if the wireless communication means fails to transmit the video, the video that has failed to be transmitted can be read out from any of the recording media other than the writing destination and transmitted. It may be difficult to write and read data to the recording medium at the same time. For example, when writing data based on an image to a recording medium for recording, the period during which the data based on the image taken by the photographing means is stored in the storage medium and the data based on the image stored in the storage medium. May overlap with the period of reading for transmission. By switching the writing destination between a plurality of storage media and creating a period in which the storage medium that stores the video-based data is not the writing destination, the video-based data can be easily read out. The number of storage media may be three or more, but it is particularly preferable to use two. Further, it is preferable that the data based on the video for recording and the data based on the video to be transmitted are different from each other in different amounts of data, and the amount of data based on the video to be transmitted is based on the video for recording. The amount of data should be smaller than the amount of data. When constantly writing to a recording medium for recording, it is preferable to alternately switch between the two recording media to write data based on the video for recording. The data based on the video to be transmitted may be written at all times by alternately switching between the two recording media, but the data based on the video that can be transmitted may not be written to the recording medium. The recording medium for writing the data based on the video that could not be transmitted may be written on the recording medium on which the data based on the video for recording is written at that time. The data based on the video that could not be transmitted by the wireless communication function may be in one communication unit or in frame units. For example, an identifier such as a serial number is given to a frame before transmission, and if transmission is not possible, the identifier of the frame that could not be transmitted and the recording medium to be written to can be recorded and transmitted. A storage medium that stores the missing frames may be specified. Further, a part of the storage area of the recording medium is divided as an area for recording data based on the video that could not be transmitted in advance, and the data based on the video stored in the area of the storage medium that is not the writing destination is read out. Is also good.

(10-1) The in-vehicle device is an in-vehicle device including a photographing means, which has a wireless communication function for transmitting data based on an image, and when transmitting data based on an image photographed by the photographing means by the wireless communication function. The communication speed may be configured so that the data can be transmitted in a shorter time than the time required for shooting the data based on the video.

In this way, the in-vehicle device can transmit the data based on the stored video at once. It is possible to shoot the data based on the video for a certain period of time and store the data based on the video for a certain period of time, so that the data can be transmitted in a shorter time than the time required for the shooting. For example, when data based on video for one communication unit is accumulated and transmitted, it can be transmitted in a time shorter than the time required to shoot one communication unit. In the remaining time, data based on the video that could not be transmitted can be transmitted. It can be transmitted in a shorter time than the real time of the video. There will be a vacancy before the next one communication unit shooting starts. The data based on the video that could not be transmitted can be read out from the storage medium that records the data based on the video that could not be transmitted, and the time for transmitting can be secured by the wireless communication function. In particular, the configuration of (10-2) exerts an excellent effect. Further, in the case of a configuration in which transmission is performed during the period when the power supply source is a battery as in (14), if the power supply source is not as in (10-1), the communication speed is slow, or after the power supply source becomes a battery. , The time to send the data based on the video that could not be sent becomes very long. In the configuration of (10-1), since the data based on the video that could not be transmitted is transmitted before the power supply source becomes the battery, it is possible to shorten or eliminate the transmission time during the period when the power supply source is the battery. it can.

(10-2) The in-vehicle device is an in-vehicle device provided with a photographing means, and has a switching function for switching the writing destination of data based on the image captured by the photographing means between a plurality of recording media and transmitting data based on the image. It is equipped with a wireless communication function to write video-based data to a storage medium and a real-time transmission function to transmit video-based data in real time by the wireless communication function, and video-based data can be transmitted by the real-time transmission function. If not, the data based on the video that could not be transmitted is read from the recording medium that stores the data based on the video that could not be transmitted during the period when the storage medium is not the writing destination, and the data is transmitted by the wireless communication function. It is good to say.

In this way, when the video-based data cannot be transmitted by the real-time transmission function, the storage medium that stores the video-based data that could not be transmitted is not the writing destination at the same time as the real-time transmission. During the period, the data based on the video that could not be transmitted can be read out, and the data based on the video that could not be transmitted can be transmitted. In particular, it is advisable to constantly write video-based data for recording. As data different from the video-based data for recording and the video-based data to be transmitted, the amount of data based on the video for recording is larger than the data amount of the data based on the video to be transmitted, for example. High quality data is recommended.

(11) A system including the present device and an in-vehicle device. The device includes a communication means for communicating with the in-vehicle device and a control unit. In the control unit, the charge / discharge control unit serves as a power source for the in-vehicle device. When switching from the vehicle to the battery, a switching signal (hereinafter referred to as the battery switching signal) indicating that the power supply source has been switched to the battery is output by the communication means, and the in-vehicle device takes a picture of the outside of the car based on the shooting conditions. It is a recorder, equipped with equipment communication means for communicating with the device, the first period when the power supply source is a vehicle, the first condition is applied as a shooting condition, the second period when the power supply source is a battery, and the first condition as a shooting condition. It is preferable to apply the second condition, which saves more power than the above, and when the switching signal (battery switching signal) is received, the shooting condition is switched from the first condition to the second condition to continue shooting.

By doing so, the amount of electric power supplied by the battery is reduced, so that the battery can be made to last longer. Here, the shooting condition is not a condition for starting shooting, but a condition for shooting. For example, the shooting conditions may include the frame rate, resolution, and the like, and the power saving conditions include lowering the frame rate and lowering the resolution. When the configurations (5), (6) and (11) are provided, each communication means and each control means may be realized so as to share one communication means and one control means, or they may be separately provided. It may be realized by the communication means and the control means of. The device may be any of the devices (1) to (6), and the in-vehicle device may be the in-vehicle device described in (7). The same applies to (13) to (15) described later.

(12) A system including the present device and an in-vehicle device, wherein the device includes a communication means for communicating with the in-vehicle device and a control unit, and the control unit includes a signal indicating the remaining amount of the battery and charging / discharging. When the control unit switches the power supply source to the in-vehicle device from the vehicle to the battery, a switching signal (battery switching signal) indicating that the power supply source has been switched to the battery is output by the communication means, and the in-vehicle device determines the shooting time and It is a drive recorder that shoots the outside of the vehicle based on the shooting conditions including the frame rate, and accepts the setting of the device communication means that communicates with the device, the shooting means, the storage medium that stores the image taken by the shooting means, and the shooting conditions. It is equipped with a user interface, and when it receives a signal indicating the remaining battery level and a switching signal (battery switching signal), it receives the remaining battery level, the remaining capacity of the recording medium, and either the received shooting time or frame rate. It is preferable that the configuration is such that either the shooting time or the frame rate is determined based on the above.

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

(13) A system including the present device and an in-vehicle device, wherein the device includes a communication means for communicating with the in-vehicle device and a control unit, and the charge / discharge control unit of the control unit provides a power supply source to the in-vehicle device. When the vehicle is switched to the battery, a switching signal (battery switching signal) indicating that the power supply source has been switched to the battery is output by the communication means, and the in-vehicle device is a drive recorder that shoots the outside of the vehicle based on the shooting conditions. , A positioning means for positioning the position of the vehicle, a device communication means for communicating with the device, and a 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 shooting condition associated with the position may be determined as the current shooting condition.

In this way, when the current position is within a predetermined radius of a position that has been set in the past, the in-vehicle device sets the shooting condition stored in the storage means as the current shooting condition. Can be done. The user can operate the in-vehicle device without the trouble of setting it many times. Further, even if the current position does not match the position stored in the storage means, the in-vehicle device can set the shooting conditions associated with the position as long as it is within the predetermined area of the stored position. This can be the shooting condition for this time. Therefore, the same shooting conditions can be applied even when the user freely parks in a parking lot having a predetermined site, for example. The predetermined region may be, for example, an arbitrary shape centered on the latitude / longitude that specifies the position, particularly a circular shape having a predetermined radius. When the configurations (5), (6) and (11) are provided, each communication means and each control means may be realized so as to share one communication means and one control means, or they may be separately provided. It may be realized by the communication means and the control means of.

(14) A system including the present device and an in-vehicle device, wherein the device includes a communication means for communicating with the in-vehicle device and a control unit, and the charge / discharge control unit of the control unit provides a power supply source to the in-vehicle device. When the vehicle is switched to the battery, a switching signal (battery switching signal) indicating that the power supply source has been switched to the battery is output by the communication means, and the in-vehicle device is set to the shooting conditions during the first period when the power supply source is the vehicle. It is a drive recorder that shoots the outside of the vehicle based on the device communication means that communicates with the device, the shooting means, the recording means that records the image taken by the shooting means, and the transmission means that transmits the image via the network. When the switching signal (battery switching signal) is received, the image that could not be transmitted in the first period may be transmitted during the period when the power supply source is the battery.

In this way, even if the record cannot be transmitted in the first period, the record can be reliably transmitted. The destination may be, for example, a database that can be viewed by the administrator who manages the vehicle. The network may be, for example, a network for mobile terminals. The first period is often dealt with during traveling, and during traveling, for example, communication may be interrupted due to switching of base stations, traveling in an area where communication speed is slow, etc., and transmission may be disabled for a period of time. .. In addition, the second period often corresponds to the parking period, and during the parking period, the vehicle rarely moves, so that the traveling record can be reliably transmitted. When the configurations (5), (6) and (14) are provided, each communication means and each control means may be realized so as to share one communication means and one control means, or they may be separately provided. It may be realized by the communication means and the control means of.

(15) A system including the present device and an in-vehicle device, wherein the device includes a communication means for communicating with the in-vehicle device and a control unit, and the charge / discharge control unit of the control unit provides a power supply source to the in-vehicle device. When switching from the vehicle to the battery, a switching signal (battery switching signal) indicating that the power supply source has been switched to the battery is output by the communication means, and the in-vehicle device is set to the shooting conditions during the first period when the power supply source is the vehicle. It is a drive recorder that photographs the outside of the vehicle based on the above, and is provided with a photographing means, a recording means for recording an image taken by the photographing means, and a transmitting means for transmitting an image via a network. When the switching signal (battery switching signal) is received by lowering the bit rate of the above, if the communication speed is faster than the reference value, it is preferable to transmit an image having a bit rate higher than that of the first period.

By doing so, in the first period, the amount of data per unit time can be reduced, so that the time of the image relative to the transmission time can be lengthened. As a method of lowering the bit rate, for example, it is preferable to lower the image quality. Further, the network may be a network for mobile terminals, a wireless LAN, or the like. Further, when the power supply source is switched to the battery, for example, it may be a case of parking. If the parking lot can use a high-speed wireless LAN such as Wi-Fi (registered trademark), it can be expected that the running image can be transmitted in a short time without reducing the amount of data per unit time. It is possible to transmit a running image with good image quality. When the configurations (5), (6) and (15) are provided, each communication means and each control means may be realized so as to share one communication means and one control means, or they may be separately provided. It may be realized by the communication means and the control means of.

(16) A system including the present device and an in-vehicle device, wherein the device includes a communication means for communicating with the in-vehicle device and a control unit, and the charge / discharge control unit of the control unit provides a power supply source to the in-vehicle device. When switching from the vehicle to the battery, a switching signal indicating that the power supply source has been switched to the battery is output by the communication means, and the in-vehicle device photographs the outside of the vehicle based on the shooting conditions during the first period when the power supply source is the vehicle. A drive recorder that creates communication data for one communication unit having a plurality of frames, which is transmitted by the wireless communication function based on the photographing means, the wireless communication function, and the image captured by the photographing means. It is preferable that at least one of the plurality of frames included in the communication data of one communication unit includes a reference frame which is a frame that can be reproduced independently.

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

(17) A system including the present device and an in-vehicle device, wherein the device includes a communication means for communicating with the in-vehicle device and a control unit, and the charge / discharge control unit of the control unit provides a power supply source to the in-vehicle device. When the vehicle is switched to the battery, a switching signal indicating that the power supply source has been switched to the battery is output by the communication means, and the in-vehicle device photographs the outside of the vehicle based on the shooting conditions during the first period when the power supply source is the vehicle. It is a drive recorder that is equipped with a shooting means, a switching function for switching the writing destination of data based on the video shot by the shooting means between a plurality of recording media, and a wireless communication function for transmitting data based on the video. When data based on video cannot be transmitted by the wireless communication function, it is based on the video that could not be transmitted from the recording medium that stores the data based on the video that could not be transmitted during the period when the storage medium is not the writing destination. It is preferable to have a configuration in which data is read out and transmitted by a wireless communication function.

In this way, even if the wireless communication means fails to transmit the video, the video that has failed to be transmitted 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 the configurations (2) to (17) after providing (1). Further, the elements (1) to (17) may be arbitrarily selected and combined.

According to the device or the like according to the present application, power can be satisfactorily supplied to the in-vehicle device.

It is a block diagram which shows the whole structure of embodiment. It is a block diagram which shows the electrical composition of a monitoring battery. It is a timing chart diagram which shows the correspondence of the output of an ACC power source and a monitoring battery. It is a figure (1/4) which shows the screen transition in the surveillance recording. It is a figure (2/4) which shows the screen transition in a surveillance recording. It is a figure (3/4) which shows the screen transition in the surveillance recording. It is a figure (4/4) which shows the screen transition in the surveillance recording. It is a figure (1/6) which shows the screen transition in setting. It is a figure (2/6) which shows the screen transition in setting. It is a figure (3/6) which shows the screen transition in setting. It is a figure (4/6) which shows the screen transition in setting. It is a figure explaining "OFF" "ON" of "overwrite" in setting. It is a figure (5/6) which shows the screen transition in setting. It is a figure (6/6) which shows the screen transition in setting. It is a figure explaining area registration in setting. It is a figure explaining the transfer (method 1) and SD card writing in parking monitoring. It is a figure explaining the transfer (method 2) and SD card writing in parking monitoring. It is a figure explaining the transfer (method 3) and SD card writing in parking monitoring. It is a functional block diagram of a drive recorder related to the transfer of recorded data during continuous recording. It is a figure explaining the structure of communication data. It is a flowchart which shows the processing content of a communication process. It is a figure explaining the recording data transfer during constant recording when a communication failure period occurs. It is a figure explaining the setting of the recording and data transfer of an SD card. It is a front view of the monitoring battery which concerns on the modification 1 shown together with an input code and an output code. It is a figure explaining the setting of the DIP switch of the monitoring battery which concerns on modification 1. FIG. It is a figure explaining the LED of the monitoring battery which concerns on modification 1. FIG. It is a perspective view of the monitoring battery which concerns on modification 2. FIG. It is a top view of the monitoring battery which concerns on the modification 2 shown together with an input code and an output code. It is a top view of the monitoring battery which concerns on modification 2. FIG. It is a figure explaining the setting of the detection voltage of the monitoring battery which concerns on modification 2. FIG. It is a figure explaining the setting of the off timer of the monitoring battery which concerns on modification 2. FIG.

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

<Monitoring battery configuration>
Next, the electrical configuration of the monitoring battery 3 will be described with reference to FIG. The monitoring battery 3 includes a charge / discharge control unit 31, a DC-DC converter 32, a CPU 33, an internal battery 34, an indicator 35, a DIP SW36, 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, and is specifically realized by a nickel-metal hydride rechargeable battery. The DC-DC converter 32 converts a 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. The CPU 33 controls the charge / discharge control unit 31, the indicator 35, and the like. Further, the CPU 33 communicates with the drive recorder 4 connected via the cable 12. The indicator 35 includes a lamp that notifies that it is in an operating state, a lamp that indicates the remaining battery level of the internal battery 34, and the like. The lamp is realized by LED. The DIP SW36 includes three switches. In the following description and figures, the internal battery 34 may be referred to as a built-in battery.

The charge / discharge control unit 31 is supplied with power from the internal battery 34 to receive power. The charge / discharge control unit 31 controls the power supply path so that the power is supplied from the ACC power supply to the internal battery 34 and the DC-DC converter 32 while the 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 voltage-converted electric power to the drive recorder 4. The charge / discharge control unit 31 determines ON / OFF of the ACC power supply and switches whether to charge or discharge the internal battery 34. When the charge / discharge control unit 31 determines that the ACC power supply is ON, the charge / discharge control unit 31 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 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.

Next, the operation of the monitoring battery 3 will be described with reference to FIG. The monitoring battery 3 uses the ACC power supply to output electric power to the drive recorder 4 while the ACC power supply is ON. When the supply of the ACC power supply is cut off, the power is output to the drive recorder 4 by using the internal battery 34 for a specified time after the cutoff. When the specified time elapses, the power output is turned off. When the supply of the ACC power supply is resumed, the ACC power supply is used again to output the power to the drive recorder 4. As a result, the drive recorder 4 can continue to operate for a 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 the battery switching signal described later from the monitoring battery 3, it transmits a signal instructing a predetermined time. The CPU 33 sets the set value of the specified time included in the signal for instructing the specified time to be received as the specified time.

When a drive recorder having no communication function is connected to the monitoring battery 3, the CPU 33 sets the time set by the DIP SW 36 as the specified time. When the power is turned on, the drive recorder 4 having a communication function transmits a signal asking for the remaining amount of the internal battery 34. If the CPU 33 does not receive a signal asking for 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, it refers to the setting of the DIP SW36. The DIP SW36 can hold a total of eight set values for a specified time in binary by combining ON / OFF of three switches. Specifically, the set values of the specified time are 30 minutes, 1 hour, 2 hours, 4 hours, 8 hours, 16 hours, 32 hours, and 64 hours. When connecting a drive recorder that does not have a communication function, the user refers to the instruction manual attached to the monitoring battery 3 and turns each switch ON or OFF so as to correspond to a desired time.

When the supply of the ACC power supply is cut off, the monitoring battery 3 switches the power supply source to the internal battery 34 and supplies power to the drive recorder 4. Since the drive recorder 4 continues to be supplied with power before and after the switching, the drive recorder 4 cannot determine whether the power supply source is the ACC power supply or the internal battery 34. Therefore, when the power supply source is switched to the internal battery 34, the CPU 33 transmits the battery switching signal to the drive recorder 4. If the ACC power is turned on after the monitoring battery 3 has turned off the output after the specified time has elapsed, the drive recorder 4 restarts the power supply that had been stopped, so it is determined that the ACC power has been turned on. Can be done. On the other hand, when the ACC power supply is turned on within the specified time, the drive recorder 4 continues to be supplied with power, so it is not possible to determine whether the power supply 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 notifying that the power supply 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 supply source has been switched to the ACC power supply. As will be described later, the drive recorder 4 switches the operation mode according to the input of the battery switching signal and the vehicle switching signal. Further, the monitoring battery 3 transmits a signal indicating the remaining battery level of the internal battery 34 every 1s. As a result, the drive recorder 4 can know the remaining battery level of the internal battery 34.

Next, the shape of the monitoring battery 3 and the like will be described. The monitoring battery 3 includes a mechanical case. The mechanical case is made of heat-resistant resin and is fixed to the vehicle with tie wrap or double-sided tape. The mechanical case is about the size of a lunch box for elementary school students, and is installed under the seat in the front row of the vehicle with the widest side facing down. Since the monitoring battery 3 is installed under a sheet that blocks direct sunlight, it is possible to prevent the temperature of the monitoring battery 3 from rising. Since the temperature of the monitoring battery 3 is less likely to rise, the internal battery 34 is less likely to be restricted in charging and discharging due to the temperature rise. As a result, the power supply from the monitoring battery 3 is less likely to be stopped, so that the drive recorder 4 is less likely to be stopped. Further, since the monitoring battery 3 is installed under the seat, the size of the internal battery 34 can be increased to the extent that it fits under the seat. As a result, the capacity of the internal battery 34 can be increased. For example, if the monitoring battery is attached to the windshield as in the drive recorder 4, it may fall if it is heavy, but if it is under the seat, there is no risk of it falling. Further, since the monitoring battery 3 is installed under the seat, it does not put pressure on the living space of the vehicle and does not interfere with the driving and getting on and off of a person.

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

<Dashcam configuration>
Next, the drive recorder 4 will be described. The drive recorder 4 is attached to the vehicle interior side of the windshield, and has a recording function of photographing the front of the vehicle through the windshield and recording it on an SD card. Further, the drive recorder 4 has a communication function of communicating with the monitoring battery 3 in addition to the recording function of a general drive recorder. The drive recorder 4 includes a display 41 (FIG. 1). Further, the drive recorder 4 includes a control unit, a GPS sensor, a G sensor, a camera, a microphone, an OBD connection cable, an SD card interface, operation buttons, an indicator lamp, a speaker, and the like, which are not shown. The display 41 is a full-color liquid crystal display provided with a backlight, and displays an image under the control of a control unit. The GPS sensor positions the position of the drive recorder 4 and outputs the vehicle position, which is the position information, to the control unit. The G sensor measures the acceleration and outputs the measured acceleration to the control unit. The camera shoots and outputs the captured image data to the control unit. The microphone collects sound and outputs the collected voice data to the control unit. The OBD connection cable is a cable that can be connected to the OBD-II connector mounted on the vehicle. The control unit acquires vehicle information, which is a self-diagnosis performed by the ECU mounted on the vehicle, via the OBD connection cable. The SD card interface includes an SD card insertion slot, and when the SD card is inserted into the SD card insertion slot, it notifies that the SD card has been inserted. Further, according to the control of the control unit, the information recorded on the SD card is read out and output to the control unit. In addition, 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 in the mechanical case of the drive recorder 4. When the operation button is pressed by the user, for example, the operation button 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. After that, the "cursor (up) / REC" button, "cursor (down) / one-touch recording" button, "SD card format" button, and "MENU / MUTEonoff" button are pressed as "cursor (up)" or "MUTEonoff", respectively. It may be described as a "REC" button or an "up" button, a "cursor (down)" button or a "down" button, an "SD" button, or a "MENU" button. Further, the "button" may be described as a "key". The indicator lamp is realized by an LED, and is turned on and off according to the control of the control unit. The indicator lamp is composed of a power lamp that lights up when the power is turned on, a recording lamp that lights up during recording, and the like. The speaker emits sound according to the control of the control unit.

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

Further, the drive recorder 4 has a LAN interface that can be connected to a wireless LAN (Local Area Network) (not shown) that conforms to the Wi-Fi (registered trademark) standard, and a mobile device that conforms to LTE (Long term Evolution) and 4G (Generation). It is provided with a mobile communication interface 52 (FIG. 19) that can be connected to a network for terminals. As a result, the drive recorder 4 can be connected to the Internet by wireless LAN via a router capable of Wi-Fi connection. It is also possible to connect to the Internet via a base station. The LAN interface may be a wireless LAN communication device, and the mobile communication interface may be a communication device such as LTE or 4G. Further, in an area where both a wireless LAN connection and a connection with a base station are possible, a function of giving priority to the wireless LAN is provided.

The drive recorder 4 includes a control unit, and the control unit processes image data, so that the amount of heat generated is large. Therefore, when the monitoring battery 3 is near the drive recorder 4, it is easily affected by heat generation. As described above, in the system 1, the drive recorder 4 is installed on the windshield and the monitoring battery 3 is installed under the seat. 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 rise, the internal battery 34 is less likely to be restricted in charging and discharging due to the temperature rise. As a result, the power supply from the monitoring battery 3 is less likely to be stopped, so that the drive recorder 4 is less likely to be stopped.

Here, the effect of adopting the configuration of the system 1 as compared with the conventional configuration will be described. For example, there is a drive recorder equipped with a battery such as a lithium ion polymer battery (LiPo). The drive recorder having this configuration can operate for, for example, about 20 to 30 minutes after the ACC power supply is turned off. However, the drive recorder is usually installed so as to photograph the outside of the vehicle through the windshield, and it is necessary to install it in a place exposed to the sun, so when it is exposed to high temperatures such as midsummer and the lithium ion polymer battery cannot be charged. was there. For example, in the summer, it was difficult to charge in the daytime, and in many cases it was possible to charge a little at night. In addition, since the drive recorder is attached to the windshield, there are restrictions on its size and weight. There is also a separate type drive recorder in which a camera unit equipped with a camera and a main body equipped with a CPU and a battery are separated. In this case, the heat of the CPU or the like may be trapped inside the case of the main body, and the temperature of the battery in the same case as the main body may be higher than the temperature of the place where the vehicle is not exposed to the sun. It was. In this respect, in the system 1, since the drive recorder 4 is separate from the monitoring battery 3, it is possible to reduce the influence of the heat generated by the CPU included in the drive recorder 4. Further, since the monitoring battery 3 is installed under the seat, it can be less affected by the temperature rise due to the sunlight.

Further, since the internal battery 34 is a nickel-metal hydride rechargeable battery and has a higher upper limit temperature of about 70 ° C. than a lithium ion polymer battery having a charging temperature of about 0 to 45 ° C., it is possible to suppress the inability to charge even in the summer. can do. The monitoring battery 3 can supply power for about 10 hours after the ACC power is turned off, depending on the 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 the remaining amount for turning the starter motor of the vehicle in the battery 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. is there. As a method of grasping the remaining amount of the vehicle battery, there is a method of drawing a current and measuring the voltage at this time. Since the voltage decreases as the remaining amount of the vehicle battery decreases, for example, when the voltage becomes a predetermined value or less, it can be determined that the remaining amount of the vehicle battery is low. However, the current consumption of the drive recorder is, for example, less than 1 A, which is smaller than the current consumption when rotating a cell motor of, for example, several to several tens of A, so that the amount of voltage drop is also small, so that the remaining amount of the vehicle battery It is difficult to know the amount accurately. In this respect, 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 that it is possible to prevent the vehicle battery from running out.

<Constant recording mode, surveillance recording mode, event recording>
Next, the recording function of the drive recorder 4 will be described. The drive recorder 4 operates according to the operation mode. The operation mode includes a constant monitoring mode and a monitoring recording mode. The drive recorder 4 records in the continuous recording mode and the surveillance recording mode. Further, in the continuous recording mode and the monitoring recording mode, the event is recorded according to a predetermined trigger. There are two predetermined triggers, one is when the control unit determines that an event has occurred based on the information of the G sensor, and the other is when the "cursor (down)" button is pressed by the user. In this case. Specifically, the control unit determines that an event has occurred when the acceleration measured by the G sensor exceeds the threshold value. As a result, the drive recorder 4 can execute event recording when the vehicle is impacted due to, for example, an accident. The case where the "cursor (down)" button is pressed is, for example, a case where a user who feels danger presses the "cursor (down)" button. The drive recorder 4 finely records about 10 to 30 s before and after the event as an event recording. The recording in the continuous recording mode and the surveillance recording mode performed by the drive recorder 4 is described as continuous recording and surveillance recording, respectively. Further, event recording that is started when the control unit determines that an event has occurred based on the information of the G sensor 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 may be referred to as one-touch recording or one-touch event recording.

When the power is turned on and continuous recording is possible, the drive recorder 4 operates in the continuous recording mode and starts continuous recording. When the battery switching signal is received from the monitoring battery 3 in the continuous 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. After shifting to the surveillance recording mode, if the surveillance recording is possible, the drive recorder 4 starts the surveillance recording. Further, when the vehicle switching signal is received from the monitoring battery 3 and continuous recording is possible, the drive recorder 4 shifts from the monitoring recording mode to the continuous recording mode and starts continuous recording.

When the monitoring battery 3 is supplied with power from the ACC power source, it is often the case that the vehicle drives the engine and further travels. When the power supply from the ACC power supply is cut off from the monitoring battery 3, the vehicle often stops the engine and is parked. The drive recorder 4 operates in the continuous recording mode when the monitoring battery 3 receives power from the ACC power supply. The drive recorder 4 operates in the surveillance recording mode when the surveillance 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 source, thereby changing the operation mode depending on whether the vehicle is running or parked. In the following description and figures, engine ON / OFF may be described instead of ON / OFF of the ACC power supply.

The drive recorder 4 records according to recording conditions corresponding to each of continuous recording, surveillance recording, and event recording. Here, the recording condition is a setting related to the image data to be stored, and more specifically, it is composed of setting items such as "number of recorded frames", "resolution", and "recording time". The number of recorded frames in event recording is as high as about 30 fps, and the "resolution" is as high as about 1080 pHD. As a result, the state of the accident is recorded in detail. In the following description and figures, the "number of recorded frames" may be described as the "frame rate".

<Monitoring recording mode>
Next, the surveillance recording mode will be described. As described above, when the battery switching signal is received from the monitoring battery 3 in the continuous 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 surveillance recording mode. The setting items of the setting related to the surveillance recording mode include "recording mode", "my area", and "my cancel area". The drive recorder 4 provides a plurality of options for each of the "recording mode", "my area", and "my cancel area". The user can set any of the options in advance on the setting screen described later. The "setting" will be described after the explanation of the surveillance recording mode.

There are three options for "recording mode": "automatic", "manual", and "OFF". When the "recording mode" is "automatic", the drive recorder 4 automatically performs monitoring recording when the ACC power is turned off. Here, "automatic" means that the operation does not depend on the input, such as whether or not the 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 to the following description. When the "recording mode" is "manual", when the ACC power is turned off, POPUP is displayed on the display 41, and the user is asked whether or not to perform surveillance recording. When the "recording mode" is "OFF", surveillance 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 level), and the remaining amount of the SD card (hereinafter referred to as the remaining amount of the SD card). You can set the recording conditions by yourself. As will be described later, the settings of "My Area" and "My Cancel Area" have priority over the settings of "Recording Mode". Further, in the following description and figures, the "recording mode" may be referred to as a "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 automatically performed 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 an unsecured home parking lot in "My Area" and parks in the home parking lot, the user can automatically perform surveillance recording. Further, for example, if the user registers the parking lot of the office where there is security in the "My Cancel Area", the user can not perform surveillance recording in the parking lot of the office. In the following description and figures, "My Area" and "My Cancel Area" may be described as "Monitoring My Area" and "Monitoring My Cancel Area", respectively.

The control unit determines that the mode shifts to the surveillance recording mode in the case of the following settings. The first is the case where the "surveillance recording setting" is "automatic" and the vehicle position is outside the "surveillance my area" and "surveillance my cancel area". The second is the case where the "surveillance recording setting" is "manual" and the vehicle position is within the "surveillance my area" area. The third is that the "surveillance recording setting" is "automatic" and the vehicle position is within the "surveillance my cancel area" area, and within 30 seconds after the screen Sa1 (Fig. 4) is displayed, "REC" is displayed. This is the case when the button is pressed. Fourth, the "surveillance recording setting" is "manual" and outside the "surveillance my area" area, and the "REC" button is pressed within 30 seconds after the screen Sa2 (Fig. 4) is displayed. This is the case.

When the "surveillance recording setting" is set to "manual", the drive recorder 4 displays the screen Sa2 and informs the user "REC" unless the vehicle position is within the "surveillance my area" area. The operation of the button is prompted, and when the "REC" button is pressed, surveillance recording is started. When the "surveillance recording setting" is set to "automatic", the drive recorder 4 monitors and records without waiting for the user's operation, except when the vehicle position is within the "surveillance my cancel area". To start. By registering the parking position in the "surveillance my area" in advance before parking, the user can automatically start the surveillance recording on the drive recorder 4 when the user parks at the parking position. By registering the parking position that does not require surveillance recording in the "monitoring my cancel area" in advance before parking, the user automatically starts surveillance recording on the drive recorder 4 when parking at the parking position that does not require surveillance recording. Can be canceled.

The control unit determines that the power of the drive recorder 4 is turned off in the case of the following settings. The first is that the "monitoring recording setting" is "automatic" and the vehicle position is within the "monitoring my cancel area" area, and after displaying the screen Sa1 (Fig. 4), the "REC" button is pressed. This is the case when 30 seconds have passed without being done. The second is that the "surveillance recording setting" is "manual" and the vehicle position is outside the "surveillance my area" area, and after displaying the screen Sa2 (Fig. 4), the "REC" button is pressed. This is the case when 30 seconds have passed without.

Next, with reference to FIGS. 4 to 7, the operation of the drive recorder 4 after receiving the battery switching signal in the continuous recording mode will be described using the display screen displayed on the display 41. The “surveillance recording” in FIG. 4 indicates that the battery switching signal has been received in the continuous recording mode.

The control unit displays the screen Sa1 when the "surveillance recording setting" is "automatic" and the vehicle position is within the "my cancel area" area. On the screen Sa1, the message "<Inside the monitoring my cancel area> cursor (upper) / REC button: monitoring recording starts, power is turned off in XX seconds" is displayed in outline characters on a red background. If the "REC" button is pressed within 30 seconds, the mode shifts to the surveillance recording mode. If the "surveillance recording setting" is "manual" and the vehicle position is within the "surveillance my area" area, the mode shifts to the surveillance recording mode. If the "surveillance recording setting" is "automatic" and the vehicle position is outside the "surveillance my area" and "surveillance my cancel area", the mode shifts to the surveillance recording mode. When the "surveillance recording setting" is "manual" and the vehicle position is outside the "surveillance my cancel area" and "surveillance my area", the screen Sa2 is displayed. On the screen Sa2, the message "Cursor (up) / REC button: Start monitoring recording, power off in XX seconds" is displayed in outline characters on a red background. If the user presses the "REC" button within 30 seconds, the mode shifts to the surveillance recording mode. When the "monitoring recording setting" is "OFF", the power is turned off after displaying the ending screen Sa3. If the "REC" button is not pressed within 30 seconds after displaying the screens Sa1 and Sa2, the operation time-out occurs, the screen Sa3 is displayed, and then the power is turned off.

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

Next, the control unit determines whether or not the remaining amount of the SD card is sufficient for the "setting" of the recording condition of the surveillance recording mode. When the control unit determines that the remaining amount of the SD card is sufficient, the control unit starts surveillance recording. The recording conditions of the surveillance 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 amount of the SD card is not enough, it may not be possible to record according to the setting. Therefore, before executing the monitoring recording, the control unit determines whether or not the remaining amount of the SD card is sufficient for the setting based on the setting of the recording condition and the remaining amount of the SD card. Specifically, the amount of data per s is calculated by multiplying the amount of data corresponding to the "resolution" by the "number of recorded frames". The total amount of data is calculated by multiplying the calculated amount of data per s by the "recording time", and when the total amount of data is less than or equal to the remaining amount of the SD card, it is determined that recording can be performed according to the setting. The table of "resolution" vs. "data amount" is recorded in ROM in advance. The control unit refers to the table, reads out the amount of data corresponding to the corresponding "resolution", and calculates it. “SD card: OK” shown in FIG. 5 indicates a case where the control unit determines that the remaining amount of the SD card is sufficient. “SD card: NG” indicates a case where the control unit determines that the remaining amount of the SD card is not sufficient.

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

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

When the control unit determines that the SD card remaining amount and the battery remaining amount are sufficient and "monitoring recording overwrite" is set to "ON" (in FIG. 5, "SD card remaining amount: OK" and "external battery" (Indicates as "remaining amount: OK" and "previous recording overwrite: ON"), the control unit determines that the surveillance recording can be executed according to the "setting", and displays the screen Sa4. On the screen Sa4, the message "Start monitoring recording, monitoring recording time: XX minutes, external battery level:" is displayed. In addition, an icon indicating the remaining battery level is displayed to the right of "External battery level:". The icon that displays the remaining battery level is an icon that gradually displays the remaining battery level on the outer shape of the battery. The control unit displays the calculated "usable time" to the right of "monitoring recording time:". In addition, it is displayed as an icon based on the percentage of the remaining battery level transmitted from the monitoring battery 3. Next, after 3 minutes have passed, the screen Sa8 is displayed.

Further, 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 "surveillance recording overwrite" is set to "ON" (Fig. 5). "SD card remaining amount: OK", "external battery remaining amount: NG", "previous recording overwrite: ON"), the control unit has a low battery level and cannot execute the set "recording time" monitoring recording. Judgment is made and the screen Sa5 is displayed. On the screen Sa5, the message "Start monitoring recording, insufficient external battery level, there is a risk that monitoring may end in the middle, external battery level:" is displayed. In addition, an icon indicating the remaining battery level is displayed on the right side of "External battery level:". Next, before the set "recording time" elapses, the screen transitions to the screen Sa3 as the remaining battery level drops to the extent that the drive recorder 4 becomes inoperable.

If the control unit determines that the SD card remaining amount is not sufficient and "monitoring recording overwrite" is set to "OFF" (in FIG. 5, "SD card remaining amount: NG", "previous recording overwrite" : OFF "), the control unit displays the screen Sa6 in order to prompt the user to change the" setting "such as changing the" last recording overwrite "to ON. On the screen Sa6, the message "There is no free space in the surveillance recording folder, MENU button: Change settings, SD button: Delete surveillance recording, power off in XX seconds" is displayed. Within 30 seconds from the start of the display of the screen Sa6, the screen Sa14 (FIG. 8) is displayed in response to the user pressing the "MENU" button. The screen Sa14 is a setting screen that accepts "settings". 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. Therefore, the "surveillance recording" shown in FIG. Returning to the "mode", the control unit again determines whether the SD card remaining amount and the battery remaining amount are sufficient. On the other hand, if the "SD" button and the "MENU" button are not pressed within 30 seconds from the start of the display of the screen Sa6, no operation time-out occurs, the screen transitions to the screen Sa3, and the power is turned off.

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

Since the recorded data stored in the folders assigned to "monitoring recording" and "event recording during monitoring" is unnecessary data if there is no abnormality in the vehicle, the user can press the simple erase button. Can erase the data. Here, the simple erase button is an "SD" button that is pressed while the screen Sa6 is being displayed.

The screen Sa8 and the screen Sa10 are display screens during which surveillance recording is being executed. The screen Sa7 and the screen Sa9 are display screens during 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 turned on, and the screen on state is a state in which the backlight is turned on. Although the screen Sa8 and the screen Sa7 are in the screen off state, the control unit turns on the recording lamp in a lighting pattern different from the constant recording in order to notify the user that recording is in progress. The screen Sa10 and screen Sa9 display the image taken by the camera in real time, and display an icon depicting the camera and an icon with a red circle in the upper left of the screen to clearly indicate that recording is in progress. .. In addition, the elapsed time and resolution from the start of recording are displayed in the upper right corner of the screen. The time is displayed at the bottom left of the screen.

When the control unit determines that an event has occurred in the monitoring recording state displaying the screen Sa8, the control unit transitions to the screen Sa7 and switches to the event recording. Further, in the state of the surveillance recording displaying the screen Sa7, when the end of the event is detected, the screen transitions to the screen Sa8 and the monitoring recording is switched. Similarly, in the state of surveillance recording displaying the screen Sa10, if it is determined that an event has occurred, the screen transitions to the screen Sa9 and the event recording is switched. Further, in the state of the surveillance recording displaying the screen Sa9, when the end of the event is detected, the screen transitions to the screen Sa10 and the operation is switched to the surveillance recording. The control unit determines that the event has ended when 30 seconds have passed since the determination that the event has occurred. Further, the screen Sa8 and the screen Sa10 are alternately switched each time the "MODE" button is pressed. Further, the screen is switched to the screen Sa8 10 seconds after the display of the screen Sa10 is started. 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 the screens Sa9 and Sa10 are used. You can also take pictures secretly.

During the surveillance recording displaying the screen Sa8, when the "surveillance recording time" expires, in the case of "LOBATT" when the remaining battery level of the internal battery 34 which is an external battery is low, and when the cable 12 which is a power cord is If it is pulled out, the screen transitions to Sa3. Similarly, during the surveillance recording displaying the screen Sa10, when the "surveillance recording time" expires, in the case of "LOBATT" where the remaining battery level of the internal battery 34 which is an external battery is low, and the power cord. When the cable 12 is disconnected, the screen transitions to Sa3.

If the "REC" button is pressed during the surveillance recording displaying the screen Sa10, the screen transitions to the screen Sa11 and the surveillance recording is stopped. Next, one minute has passed since the display of the screen Sa11 was started, and then the screen transitions to the screen Sa3. If it is determined that an event has occurred while the screen Sa4 is being displayed, the screen transitions to the screen Sa9 and event recording is started.

Among the recording conditions in the event recording mode, the "number of recorded frames" is set in advance and is 30 fps. Further, in the above, it was explained that the event recording is performed when the end of the event is detected, but when the "event recording overwrite" of the recording condition of the "event recording mode" is "OFF" in the "setting", the event is recorded. If there is no remaining SD card assigned for recording, event recording will not be executed. Further, the control unit does not record the event for 3 minutes from the start of the surveillance recording. As a result, it is possible to prevent the user from getting on and off, opening and closing the door such as loading and unloading the cargo, determining that an event has occurred, and recording the event.

<Monitoring recording settings in surveillance recording mode>
Next, the setting screen in which the “MENU” button is pressed during the display of the screen Sa6 to make a transition will be described with reference to FIGS. 8 to 9. Both screens Sa14 to Sa17 are setting screens for setting surveillance recording. As shown on the screen Sa14, the control unit displays the message "monitoring recording setting" at the upper right of the screen and the message "MENU, SD free: XX minutes" at the bottom of the screen. To the right of "MENU", an icon with a back arrow is displayed. As a result, it is possible to notify the user that pressing the "MENU" button returns 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, the setting items in the surveillance recording mode, "recording time", "recording resolution", "number of recording frames", and "previous recording overwrite" are displayed in a list. The number of items that can be displayed on the screen is four, and the items that are not displayed are scrolled and displayed in response to the pressing of the "up" key or the "down" key. Further, in order to distinguish the currently selected item from other items, the background color is displayed so as to be different (hereinafter referred to as "selection display"). Specifically, for example, both are displayed in outline characters, the background color of the selected item is displayed as blue, and the background color of other items is displayed as black. In FIGS. 8 and 9, the currently selected items are shaded and shown 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 transitions to screen Sa15, screen Sa16, screen Sa16, screen Sa17, and screen Sa15 again. Similarly, each time the "up" key is pressed, the screen transitions to the screen Sa17, the screen Sa16, the screen Sa15, the screen Sa14, and then to the screen Sa17 again.

If 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 an item being set, is displayed in the upper right of the screen, and "1/5" indicating the number of pages of the "recording time" display screen is displayed in the lower left of the screen. Similar to the screen Sa14, the number of displayed items is four, and one group divided into four is displayed as one page. As will be described later, there are a total of 17 "recording time" options, and the total number of pages is 5. The next page is displayed as the "Down" key is pressed. The previous page is displayed as the "up" key is pressed. The illustrations on the second and subsequent pages are 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) and 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 cannot be recorded and are longer than the "usable time" calculated based on the remaining amount of the SD card are displayed in red (not shown). For example, if the "usable time" is 60 minutes, the options of 90 minutes or more 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 non-volatile storage unit is updated with the selected option as the set value of the "recording time", and the screen Sa14 is displayed. If the "MENU" key is pressed while the screen Sa18 is being displayed, the screen transitions to the screen Sa14 without updating the "recording time" set value stored in the non-volatile storage unit.

If 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 "selected and displayed". If 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 an item being set, is displayed at the upper right of the screen, and "1/1" indicating the number of pages of the "recording resolution" display screen is displayed at the lower right of the screen. There are four options for "recording time" and one page for "recording resolution". Specifically, the options are 1080pHD (1920x1080), 1080p (1440x1080), 720p (1280x720), VGA (640x480). Similar to "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 non-volatile storage unit is updated with the selected option as the setting value of the "recording resolution", and the screen Sa15 is displayed. If the "MENU" key is pressed while the screen Sa18 is being displayed, the screen transitions to the screen Sa15 without updating the set value of the "recording resolution" stored in the non-volatile storage unit.

If 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 "selected and displayed". If the "OK" key is pressed while the screen Sa16 is being displayed, the screen Sa20 is displayed. On the screen Sa20, the item "recorded frames" that is being set is displayed in the upper right of the screen, and "1/2" that clearly indicates the number of pages of the "recorded frames" display screen is displayed in the lower right of the screen. .. Although the illustration on the second page is omitted, there are two pages of "number of recorded frames". In addition, there are five options for "number of recorded frames". Specifically, it is 1 fps, 5 fps, 10 fps, 15 fps, and 30 fps. Similar to "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 "recorded frame number", and the screen Sa16 is displayed. If the "MENU" key is pressed while the screen Sa20 is being displayed, the screen transitions to the screen Sa16 without updating the set value of the "recorded frame number" stored in the non-volatile storage unit.

Also, as with "Recording time", options that cannot be recorded are displayed in red (not shown). The number of possible recording frames is calculated by dividing the remaining amount of the SD card by the set value of "recording time" and further dividing by the amount of data corresponding to "resolution". The fps value larger than the calculated number of possible recording frames is displayed in red. For example, if the number of possible recording frames is 10 fps, the options of 15 fps or more are displayed in red. This allows the user to avoid options that cannot be recorded. The table of "resolution" vs. "data amount" is recorded in 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, "surveillance recording overwrite" is "selected and displayed". If the "OK key" is pressed while the screen Sa17 is being displayed, the screen Sa21 is displayed. On the screen Sa21, "surveillance recording overwrite", which is an item being set, is displayed in the upper right corner of the screen. There are two options for "surveillance recording overwrite": "ON" and "OFF". Similar to "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 storage unit is updated with the selected option as the setting value of "monitoring recording overwrite", 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 "monitoring recording overwrite" 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 is low during the display of the screens Sa14 to Sa17, or when the power cable 11 which is the power cord is disconnected, the screen transitions to the screen Sa3.

As described above, the user who wants to perform surveillance recording immediately displays the screens Sa14 to Sa17 and sets the set value to the SD card when the remaining amount of the SD card is low with the preset setting value and recording is not possible. You can change the options to match the remaining amount. In addition, the drive recorder 4 displays the “recording time” and the “number of recorded frames” in red for options that cannot be recorded. As a result, the user can set either "recording time" or "recording frame number" that he / she wants to prioritize, and then set either "recording time" or "recording frame number" as a recordable option. Can be done.

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

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

As described above, the drive recorder 4 shifts to event recording according to a predetermined trigger in continuous recording. If the G sensor detects an impact during continuous recording, the screen transitions to the G sensor event recording screen, and if the "cursor (down)" button is pressed, the screen transitions to the one-touch recording screen. When the event recording is completed, the screen transitions to the continuous recording screen. By differentiating the displayed icons between the G-sensor event recording and the one-touch recording screen, the user is notified whether the G-sensor event recording or the one-touch recording screen is used.

When the "MENU" key is pressed while the above 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. Similar to the screen Sa14, the number of items displayed on the menu screen is four, and one group divided into four is displayed as one page. In addition to the above, the control unit displays the camera image through display screen even after the "REC" button is pressed during continuous recording and continuous recording is stopped. Further, the control unit starts the event recording when the event recording is triggered during the display of the camera image through display screen, and when the event recording is completed, the control unit again transitions to the camera image through display screen.

The screen Sb1 shown in FIG. 10 is a screen on the third page of the menu screen. As shown in screen Sb1, the control unit displays "recording setting" at the upper right of the screen and "MENU" at the bottom of the screen. An icon with a back arrow is displayed to the right of "MENU". The number of pages is displayed at the bottom right of the screen. There are 14 recording setting items. For details, see "Resolution", "Number of recorded frames", "Voice recording", "Event beep", "Constant recording overwrite", "One-touch recording overwrite", "G sensor recording overwrite", "Screen auto-off", "G sensor setting", and "G sensor sensitivity". "Surveillance recording settings" "Surveillance my area" "Surveillance my cancel area" "My area cancellation". The "resolution" and "number of recorded frames" are recording conditions applied to continuous recording. Further, "one-touch recording overwrite", "G sensor recording overwrite", "G sensor setting", and "G sensor sensitivity" are settings that are commonly applied to event recording in the continuous recording mode and event recording in the monitoring recording mode. As a result, the user does not have to set the event recording in the continuous recording mode and the event recording in the monitoring recording mode separately, and the troublesomeness felt by the user can be reduced and the user can easily grasp the event.

The screens Sb11 to Sb15 are all screens for setting the monitoring recording setting. As shown on the screen Sa14, the control unit displays "monitoring recording setting" in the upper right corner of the screen, and in the center of the screen, the monitoring recording setting items "recording mode", "recording time", "recording resolution", "number of recording frames", and " Display the list of "Overwrite last recording". The number of items displayed on the screen is four, and the items that are not displayed can be scrolled and displayed in response to the pressing of the "up" key or the "down" key. There is. In addition, the currently selected item is "selected and displayed". In FIGS. 10 and 11, the currently selected items are shaded and shown for explanation. Here, the items that can be set are those in which the "recording mode" is added to the items displayed on the setting screens (FIGS. 9 and 10) in the surveillance recording mode. Therefore, the description of "recording time", "recording resolution", "number of recorded frames", and "previous recording overwrite", which are items displayed on the setting screen in the monitoring recording mode, will be omitted as appropriate.

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

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

Here, the "previous recording overwrite" set on the screen Sa17 and the screen Sb15 will be described with reference to FIG. The "previous recording overwrite" sets whether or not to overwrite the surveillance recording data, which is the surveillance recording data recorded up to the previous time. When it is "OFF", recording is performed within the remaining capacity of the surveillance recording folder without overwriting. It records in the vacant space, and ends the recording as the vacant space runs out. When it is "ON", first, recording is performed in the surveillance recording folder. As the capacity becomes full and the space runs out, the previous surveillance recording is overwritten from the old one. In this case, the surveillance recording data being shot this time is not overwritten, and the recording is terminated according to the recording of the current data in the capacity of the SD card.

For example, the user can set it to "ON" if he / she has confirmed that the vehicle has not changed in the previous parking, and set it to "OFF" if he / she has not confirmed it yet.

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

As shown in FIGS. 13 and 14, there are five options for "monitoring my area": "recording time", "recording resolution", "number of recorded frames", "area radius", and "registration execution". Of these, the screens Sb21 to Sb23, which are the setting screens for "recording time", "recording resolution", and "number of recorded frames", are the same as the screens Sb12 to Sb14 described above, respectively, and thus the description thereof will be omitted. On the screen Sb24 (FIG. 14), the control unit "selectively displays" the "area radius". If the "OK" key is pressed while the screen Sb24 is being displayed, the screen transitions to the screen Sb241. At the lower right of the screen Sb241, "1/2" that clearly indicates the number of pages of the "area radius" display screen is displayed. There are five "area radius" options: "15m", "30m", "50m", "100m", and "200m". The number of items to be displayed is four, and each group is divided into four items, and one group is displayed as one page. The total number of pages of the "area radius" is two. The illustrations on the second and subsequent pages are omitted. When the "OK" key is pressed while the screen Sb241 is being displayed, the non-volatile storage unit is updated with the selected option as the set value of the "area radius", and the screen Sb24 is displayed. If 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 described above, the "area radius" is specified by the user.

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 "selects and displays" "registration execution". If the "OK" key is pressed while the screen Sb25 is being displayed, the screen transitions to the screen Sb251. On the screen Sb251, the message "Do you want to register your current location in the monitoring my area?" And the options of "OK" and "Cancel" are displayed. In addition, the control unit refers to the non-volatile storage unit, reads out the number of points that can be recorded in the non-volatile storage unit and the number of points recorded in the non-volatile storage unit, and is the number of the registration this time. Is displayed (○ / ○ cases). 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 central position of the "monitoring my area". On the screen Sb252, the message "The current location has been registered in the monitoring my area (○ / ○ cases)" is displayed. After 3 seconds from the start of the display of the screen Sb252, and when the "OK" button is pressed, the screen transitions to the screen Sb251.

As shown in FIG. 15, in the "registration execution", the control unit sets the area radius set in the "area radius" centering on the location P1 recorded in the non-volatile storage unit as the center position of the "monitoring my area". The area of the circle A1 drawn with the value as the radius is recognized as the parking area "surveillance my area".

For example, suppose that the user parks at the parking place P1 for the first time and presses the "OK" button while the screen Sb251 is displayed. The control unit records the location P1 in the non-volatile storage unit as the central position of the “monitoring my area”. When the vehicle is parked in the place P2 in the circle A1 in the "surveillance my area" from the second time onward, the surveillance recording is started according to the recording conditions of the "surveillance my area" set. Recording conditions include "recording time", "recording resolution", and "number of recording frames". Once the user has set the recording conditions, the control unit will automatically record the surveillance recording from the next time.

It is assumed that the user has registered the place where he / she parks for the first time as the central position of "Monitoring My Area". If the "surveillance recording setting" is set to "automatic", the drive recorder 4 will automatically monitor and record if the vehicle is parked in the "surveillance my area" from the second time. Further, if the "surveillance recording setting" is set to "manual", the drive recorder 4 will perform surveillance recording by manually pressing the "REC" button from the second time. In places where the user does not care (safe and short-time parking places such as convenience stores), if you want to automatically record with the minimum setting (1 fps), or if you are likely to shop for a long time, the remaining SD card and battery You can see the remaining amount and respond to requests such as wanting to set.

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 unit "selects and displays" the "monitoring my cancel area". If 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 "Monitoring My Area", the illustration and description will be omitted. Similar to "Monitoring My Area", there are five options for "Monitoring My Cancel Area": "Recording Time", "Recording Resolution", "Number of Recording Frames", "Area Radius", and "Registration Execution". Further, "recording time", "recording resolution", "number of recorded frames", "area radius", and "registration execution" have a plurality of options as in "monitoring my area". The condition set in the "monitoring my cancel area" is applied when the "REC" button is pressed on the screen Sa1.

When the "down" key is pressed while the screen Sb3 is being displayed, the screen Sb4 (FIG. 13) is displayed. On the screen Sb4, the control unit "selects and displays" "cancel my area". The screen Sb4 is a screen for accepting the cancellation of registration of "monitoring my area". When the "OK" button is pressed while the screen Sb4 is being displayed, a screen displaying a list of options for "cancel current location" and "cancel all points" is displayed. If the "OK" button is pressed while "Cancel current location" is "Selected", you can select "OK" or "Cancel" with the message "Do you want to cancel the My Area information of your current location?" Is displayed. Furthermore, when the "OK" button is pressed while "OK" is selected, the screen transitions to the screen displaying the "Cancelled" message, and the non-volatile storage unit displays "Monitoring My Area". 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. In addition, when "OK" is pressed while "Cancel" is "Selected display", it is determined that the user has canceled the cancellation, and the items of "Current location cancellation" and "All points cancellation" are displayed. Transition to.

On the other hand, if the "OK" button is pressed while "Cancel all points" is "Selected" on the screen that displays a list of options for "Cancel current location" and "Cancel all points", "All points can be canceled". Along with the message "Do you want to cancel my area information?", The options "OK" and "Cancel" are displayed, and when the "OK" button is pressed, the screen transitions to the screen displaying the message "Cancelled". At the same time, the position information of all the points stored in the non-volatile storage unit as the central position of the "monitoring my area" is deleted from the non-volatile storage unit.

When recording on the SD card, the drive recorder 4 performs for each of "constant recording", event recording "G sensor recording", event recording "one-touch recording", "parking monitoring recording", and the like. Then, determine the upper limit capacity and record it. In addition, the recorded recorded data can be played back and the recorded recorded data can be deleted. For details, when the "MODE" key is pressed on the above-mentioned camera image through display screen, a screen displaying the options of "always recording", "G sensor recording", "one-touch recording", and "surveillance recording" as a playback folder is displayed. Transition. For example, when the "OK" key is pressed while "surveillance recording" is selected, the recorded data is displayed on the display 41. It is also possible to remove the SD card from the drive recorder 4 and play it on a PC or the like. Here, the "G sensor recording" is an event recording that starts when the control unit determines that an event has occurred based on the information of the G sensor. The "one-touch recording" is an event recording started by the control unit when the "cursor (down)" button is pressed. "Parking surveillance recording" is surveillance recording.

If you want to erase the data recorded on the SD card, when the "SD" button is pressed on the camera image through display screen, the screen display changes to "SD card maintenance" and the "monitoring recording folder" When "Clear" is selected and the "OK" button is pressed, the "surveillance recording" data is deleted.

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

The CPU executes two codecs, and in continuous recording, the codec of the recorded data for transmitting from the LAN interface or the mobile communication interface 52 and the codec of the recorded data for writing to the SD card are performed in parallel as separate processes. And execute. As a result, the recorded data for transmission from the LAN interface or the mobile communication interface 52 and the recorded data recorded on the SD card can be made different. Here, it is assumed that the recorded data recorded on the SD card has a smaller 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 the image output from the camera in the RAM and the SD card during the constant recording. Specifically, the CPU stores the recorded data obtained by converting the image output from the camera into a JPEG format in the RAM. Further, the CPU outputs the recorded data for the SD card, which is the compressed recorded data recorded in the RAM, to the SD card interface. Here, the recorded 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 recorded data recorded in the RAM. The SD card interface writes the input recording data for the SD card to the SD card. Further, the CPU outputs the recorded data for communication obtained by compressing the recorded data recorded in the RAM to the LAN interface or the mobile communication interface 52. The LAN interface or the mobile communication interface 52 packetizes the input recorded data for communication and transmits it to the destination via the Internet. Similarly, in the case of event recording, the control unit records the recorded data in JPEG format in the RAM and the SD card. As described above, the recorded data in the continuous recording and the recorded data in the event recording are stored in the corresponding SD card folders, respectively.

During continuous recording, it connects to the Internet via a base station and transfers the recorded data to the destination. The communication speed of mobile communication for mobile terminals is not uniform, for example, about 10 Mbps in the countryside and about 2 Mbps in the city, and in areas where the communication speed is slow, the amount of recorded data to be transmitted is reduced to, for example, about 1 to 2 Mbps. Otherwise, the transmission will not be in time. Therefore, the control unit generates and transmits the recorded data for communication in which the recorded data recorded in the RAM is compressed. The data recording conditions of about 1 Mbps are a resolution of about 720 x 400 and a frame rate of about 15 fps. In addition, 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 the user enters an area with a large amount of communication. In this case, the recorded data cannot be transferred during the period when communication is not possible. That is, there is a part that cannot be transmitted to the recorded data.

The control unit resumes data transfer from the recorded data currently being recorded as communication becomes possible from communication failure. That is, the recorded data in which the non-communication portion is missing is transferred to the destination. When the engine is turned off and the ACC power is turned off, continuous recording ends and the part that could not be transmitted is transmitted. Next, the event recording part is transmitted.

When the control unit receives a battery switching signal from the monitoring battery 3 indicating that the power supply source has been switched to the internal battery 34, the control unit measures the communication speed. The control unit transmits recorded data at a bit rate according to the communication speed. For example, when the communication speed is 100 Mbps, recorded data of 100 Mbps is transmitted. Specifically, the CPU compresses the recorded data recorded in the RAM so as to have a predetermined bit rate. Next, the CPU outputs the compressed recording data for communication to the 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 recorded data recorded in the RAM into the recorded data having the same bit rate as when the ACC power supply is turned on and transmits the recorded data. When the ACC power is on, the time of the image relative to the transmission time can be lengthened by reducing the amount of recorded data per unit time.

<Modified example of data transfer method>
Next, Method 2, which is a modified example 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 that of method 1, the description thereof will be omitted. In the method 2, when communication becomes possible, the data is transferred from the data until communication becomes impossible, not the current recorded data. That is, time-series data is transferred to the destination. When the engine is turned off and continuous recording is completed, the part that could not be transmitted is transmitted. Next, the event recording part is transmitted.

Next, Method 3, which is a modified example 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 that of method 1, the description thereof will be omitted. In the method 3, the data transfer of the continuous recording and the data transfer of the event recording are executed in parallel during the continuous recording. When communication becomes possible, the data is transferred not from the current recorded data but from the recorded data until communication becomes impossible. That is, the recorded data of the time-series continuous recording and the recorded data of the event recording are transferred to the destination. When the engine is turned off and the continuous recording is completed, the part where the recorded data of the continuous recording could not be transmitted and the part where the recorded data of the event recording could not be transmitted are transmitted.

As described above, the drive recorder 4 can transmit the recorded data that could not be transmitted during the period when the ACC power is ON by receiving the power supply from the monitoring battery 3 after the ACC power is turned off.

Next, another example of the drive recorder is shown. This is also a modified example of the data transfer method. The data transfer method and its configuration will be described with reference to FIGS. 19 to 22. The same configuration as in the above embodiment will be described using the same names and reference numerals. In the above-mentioned methods 1 to 3 of the data transfer method, it has been described that the recorded data that could not be transmitted due to the period when communication is not possible is transmitted after the engine is turned off. In the method 4, the drive recorder 4 transmits the recorded data that could not be transmitted together with the real-time recorded data during the period when the engine is ON.

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

The audio compression unit 46 compresses the audio data collected by the microphone 43 into MP3 format audio data, and outputs the compressed audio data to the SD card interface 47 and the audio buffer 49. The image buffer 48 and the audio buffer 49 buffer the compressed image data and the audio data, respectively. The communication data creation unit 50 reads compressed image data and audio data from the image buffer 48 and the audio buffer 49, respectively, creates communication data, and adds information on the date and time when the created communication data was created to the ring buffer. Output to 51. The ring buffer 51 buffers communication data to which information on four created date and time is 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 unit 44 and the audio compression unit 46 to the storage area of the SD card 61 or the SD card 62. Here, the SD card interface 47 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 leaving cleanly, and is an area for storing the image data output from the storage compression unit 44 and the audio data output from the audio compression unit 46. The communication area is an area for storing all or part of the 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 transmission cannot be made in time unless the amount of the communication data which is the recorded data to be transmitted is reduced. The area for leaving a clean image is an area for leaving recorded data whose compression rate is smaller than that of communication data and the image at the time of reproduction is clean. The SD card interface 47 has an upper limit for each of the "constant recording", "G sensor recording", "one-touch recording", "parking monitoring recording", etc. in each of the storage area and the communication area. Determine 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 the SD card 62. Further, the SD card interface 47 reads all or a part of the communication data that could not be transmitted from the communication area of the SD card 61 or the SD card 62 and outputs the communication data to the mobile communication interface 52. The audio 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. “Image data” in FIG. 20 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. Indicates the communication data to be used. The horizontal axis of the data is the time axis. The image data is composed of an I frame and a P frame. Here, the I frame is data that can be reproduced independently, and the P frame is difference data from the image data one frame before. The image data has one I frame and a plurality of 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 indicating the order in time series. The audio compression unit 46 divides the audio data into sections corresponding to the I frame of the image data to the next I frame, and assigns a serial number to each of the delimited audio frames. The communication data creation unit 50 creates communication data in which one I frame, one division of voice data, and a plurality of P frames are one communication unit. The communication data is data in which I frames, voice data, and P frames are arranged sequentially.

The communication compression unit 45 creates three I-frames in 1 s. For example, when the frame rate is 15 fps, the communication compression unit 45 converts the image data into one I frame and four P frames every 1/3 s. The audio compression unit 46 adds a mark to the audio data in synchronization with the communication compression unit 45 converting to an I frame. The communication data creation unit 50 first reads an I frame from the image buffer 48, then reads one segment of audio data from the audio buffer 49 to the mark corresponding to the I frame to the mark corresponding to the next I frame, and then reads The P frames from the image buffer 48 to the next I frame are read out, and the communication data with each read data as one communication unit is output to the ring buffer 51. The ring buffer 51 sequentially buffers the 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. The ring buffer 51 stores a plurality of communication data in one communication unit. The destination is provided with a playback device capable of receiving and playing back communication data, and the received communication data can be played back to watch a video or listen to audio. Further, when the I frame, which is a part of the communication data, is received, the playback device can reproduce the still image based on the I frame. Further, when the I frame and the voice data, which are a part of the communication data, are received, the playback device can reproduce the still image and the voice based on the I frame. In this case, when the audio data is received halfway, the audio in the received section can be reproduced. Further, when the I frame, the audio data, and the middle of the P frame, which are a part of the communication data, are received, the playback device can reproduce the video and the audio based on the received P frame.

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

Next, the communication process executed by the CPU in order to transfer the recorded data to the transmission destination in real time during constant recording will be described with reference to FIG. In the following description, transferring recorded data in real time by communication processing may be described as real-time transfer. When the CPU starts continuous recording, it 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 is communication data of one communication unit, and is the same in the following description. Next, the mobile communication interface 52 is made to transmit communication data (S3). As a result, the constantly recorded data is transferred to the destination in real time. Next, after a lapse of a predetermined time, it is determined whether or not the transmission of the mobile communication interface 52 is successful (S5). Here, the predetermined time is a time equal to or less than the reproduction time of the communication data. Since communication data is generated one after another during continuous recording, communication data that could not be transmitted will accumulate unless it is transmitted within a time equal to or less than the playback time of the communication data. In order to perform real-time transfer while performing continuous 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. If the CPU cannot transmit, the SD cards 61 and 62 store the voice data for the I frame, P frame, and 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 the packet transmission is an error, the retransmission process of retransmitting the packet that could not be transmitted due to the error is also performed. For example, when the communication data of one communication unit cannot be transmitted due to frequent reproduction processing due to poor radio wave condition or the like, the communication data that could not be transmitted is stored in the SD cards 61 and 62. When the mobile communication interface 52 can transmit the communication data of one communication unit, the CPU determines that the transmission is successful. When the CPU determines that the transmission is successful (S5: Yes), the process proceeds to step S7 for the transmission of the next communication data. On the other hand, when the CPU determines that the transmission has failed (S5: No), the communication data that could not be transmitted to the SD card interface 47 could not be transmitted. The data is read, stored in the SD card 61 or the SD card 62, and the fact that the data could not be transmitted is stored in the RAM (S9), and the process proceeds to step S7. When the I frame cannot be transmitted, the voice data for one communication unit, that is, the I frame, the P frame, and one section is stored. If all of the audio data for one section cannot be transmitted, the audio data for one section and the P frame are stored. If all of the plurality of P frames cannot be transmitted, the P frames that could not be transmitted are stored. If transmission cannot be performed within the reproduction time of the communication data of one communication unit (S5: NO), the communication data of the next communication unit is transmitted (S1, S3). The destination cannot receive the communication data of one communication unit, but the communication data of one communication unit can be played back without the communication data of one communication unit before and after, so the destination is the next one communication unit. When the communication data can be received, the communication data of one communication unit can be reproduced. Even if the communication data of one communication unit cannot be transmitted, the invisible section can be limited to the real time of one communication unit, or only 1/3 s in the above example.

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

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

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

During the continuous recording period, the SD card interface 47 alternately switches the writing destination of the storage data between the SD card 61 and the SD card 62 at predetermined time intervals (for example, every 10s), and writes the data in a time division manner. As a result, since one of the SD cards 61 and 62 is being written while the other is not being written, the SD card interface 47 can facilitate reading from the other. One of the SD cards 61 and 62 is used for writing and recording storage data, which is 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 of time t1 to time t2, which is a communicable period, the mobile communication interface 52 executes communication processing and transmits communication data. During the period from time t2 to time t4, when communication is not possible, the SD card interface 47 writes the storage data to the storage area and writes the communication data to the communication area. Here, the SD card interface 47 writes the communication data to the same SD card as the SD card for writing the storage data. The communication process step S9 is performed in the free time when the storage data is not written in the storage area. When communication becomes possible at time t4, the CPU transmits all or part of the communication data written to the SD card 62 because it could not be transmitted, which is shown by the shaded area in FIG. 22, together with the transmission in the communication process from the SD card 62. Read and send. Specifically, when receiving a signal from the mobile communication interface 52 that communication is possible, it is determined whether or not the fact that the data could not be transmitted is stored in the RAM, and it is determined that the data that could not be transmitted 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 for which the storage data is not written, and if it is determined that the communication data is stored, it is stored. All or part of the communication data is read and transmitted. The time for transferring communication data is shorter than the time for writing communication data to SD cards 61 and 62. The time t4 to time t5, which is the period for transferring communication data, is shorter than the time t2 to time t3, which is the period for writing to the SD card 62. Therefore, the drive recorder 4 can transmit all or a part of the communication data that could not be transmitted in the period of time t2 to time t3 in the period of time t4 to t5. Since the SD card interface 47 writes the storage data to the SD card 61 at times t4 to t5, all or part of the communication data is read from the SD card 62 that has not been written. Next, when the writing destination is switched to the SD card 62 at time t5, all or part of the communication data that could not be transmitted is read from the SD card 61 and transmitted. Similarly, for all or part of the communication data that could not be transmitted during the period from time t6 to time t7, when communication is not possible, when communication becomes possible at time t7, the CPU communicates data from the SD card 62 that has not been written. Read all or part of the data and send it. Next, when the writing destination is switched to the SD card 62 at time t8, the CPU reads all or a part of the communication data that could not be transmitted from the SD card 61 and transmits the communication data. For example, when the actual time required for shooting in one communication unit is 1 s and the predetermined time for switching the writing destination of the storage data is 10 s, one cycle of communication processing steps S1 to S7 is performed 10 times in 10 s. Will be done. In FIG. 22, for example, at time t2, the time when the communication connection state is disabled and the start time of the period in which the communication data indicated by the shaded area is written to the SD card 62 are shown as the same time. However, in detail, since communication is disabled and step S9 is executed after step S5 is executed, the communication data is written to the SD card 62, but the communication connection state is communication at the time when the communication is started. It will be after the time when it became impossible.

Although omitted in FIG. 22, if all communication data cannot be transmitted during the period when the engine is on, the drive recorder 4 is supplied with power from the monitoring battery 3 after the engine is turned off, and the rest. Communication data is transmitted.

Since the period during which communication is disabled is indefinite and it is not known where the communication is cut off, communication may be disabled during step S3 of the communication process. 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 is disabled in the middle of the P frame, the I frame and audio data are transmitted to the destination. Since the I-frame is data that can be reproduced independently, at least still images and audio data can be reproduced at the destination. In addition, since communication data that cannot be transmitted due to communication failure is transmitted later, the destination will receive communication data that is not in chronological order. Since the communication data is assigned a serial number to each frame, the destination can easily reproduce the communication data of the transmitted section by sorting the communication data in the order of the serial number after receiving all the communication data. A general moving image file has a management area for managing data area allocation at the beginning and the end of the file. Since the management area is indispensable for playing the video file, the video file cannot be played if the management area at the tail is not transmitted to the destination. In this respect, since the communication data does not have a management area, the transmission destination can reproduce the communication data of the transmitted section as described above. Further, since the communication data of one communication unit has one I frame, even if the communication data of one communication unit cannot be transmitted, the communication data of another 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 and data transfer to the SD card 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". The "history" is data that does not have image and audio data such as recorded data. Of these, "data content" of "constant recording", "G sensor event recording", and "one-touch event recording" includes "video data", "voice data", "GPS", "accelerometer", and "vehicle information". There is. The "data content" of the "history" includes "GPS", "accelerometer", 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 is recorded in the RAM together with the date and time. The "GPS", "accelerometer", and "vehicle information" of the "data content" are vehicle positions, accelerations, and vehicle information recorded together with the date and time, respectively. When transferring "GPS", "accelerometer", and "vehicle information" to the transfer destination via the LAN interface or the mobile communication interface 52, the CPU performs the vehicle position and acceleration for each frame or 1s of video data. , Separate and transfer vehicle information data.

The "recording" in the "settings" shown in FIG. 23 is the storage of recorded data in the SD card. "Transfer" is a transfer of recorded data to a destination via a LAN interface or a mobile communication interface 52. “○” in FIG. 23 indicates that the setting is to execute “recording” or “transfer”, and “x” indicates that the setting is not to be executed. The non-volatile storage unit of the drive recorder 4 stores the settings with "○" and "×" as parameters corresponding to "data item", "data content", "recording", and "transfer". The drive recorder 4 accepts the above settings on the setting screen, for example, and executes "recording" and "transfer" in the case of "◯". The driver of the vehicle may be different from the manager who views the "recorded" or "transferred" data, for example the manager of the vehicle. In this case, the driver may request that all "data content" be "recorded" or "transferred". By accepting "record" or "transfer" settings in detail for each "data item" and "data content", it is possible to provide a drive recorder 4 that can be set according to the intentions of both the driver and the administrator. it can. The user can set the drive recorder 4 according to the operation method and needs. Further, if there is "data content" that has not been recorded during continuous recording, G-sensor event recording, and one-touch event recording, it is preferable that the display 41 clearly indicates that the data is not recorded.

Here, the drive recorder 4 is an example of an in-vehicle device, the monitoring battery 3 is an example of an apparatus, 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 control unit. The "resolution" and "number of recorded frames" that can be selected on the setting screen are an example of the first setting function, and the "monitoring recording setting" that can be selected on the setting screen is an example of the second setting function, and the "monitoring recording setting" that can be selected on the setting screen is an example. "G sensor setting" is an example of the third setting function. The input / output connector 4a is an example of a device communication means, a camera is an example of a photographing means, an SD card is an example of a storage medium, an operation button is an example of a user interface, and a GPS sensor is an example of a positioning means. Yes, the non-volatile recording unit is an example of recording means. The battery switching signal is an example of "a switching signal indicating that the power supply source has been switched to the battery", and the vehicle switching signal is an example of "a signal indicating that the power supply source has been switched to the vehicle". The power cable 11 is an example of a “vehicle-to-device feeding line”, and the cable 12 is an example of a “vehicle-vehicle device feeding line”. The communication data creation unit 50 is an example of the creation unit, and the SD cards 61 and 62 are examples of the first recording medium and the second recording medium. The mobile communication interface 52 and the LAN interface are examples of transmission means. The SD card interface 47 is an example of a memory 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 the power supply from the vehicle is cut off. Further, although the drive recorder 4 generates heat from the inside of the housing, since the monitoring battery 3 is separate from the drive recorder 4, it is less likely to be affected by the heat generated from the inside of the drive recorder 4. By making it difficult for the temperature of the internal battery 34 to rise, it is possible to suppress that charging and discharging become impossible due to the temperature rise, and it is possible to make it difficult for the drive recorder 4 to be unable to supply power. Since the monitoring battery 3 is installed under the seat, the monitoring battery 3 can be made large and heavy enough to be installed under the seat, so that the capacity of the internal battery 34 can be increased. As a result, the drive recorder 4 can continue to operate for a long time even after the power supply from the vehicle is cut off. In addition, since the monitoring battery 3 is installed under the seat, it does not put pressure on the living space, and it does not hit a person or get in the way while driving or 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 supply source has been switched to the ACC power supply. As a result, the drive recorder 4 can know that the power supply source has been switched to the internal battery 34.

"One-touch recording overwrite", "G sensor recording overwrite", "G sensor setting", and "G sensor sensitivity" on the setting screen are settings that are commonly applied to event recording in the continuous recording mode and event recording in the monitoring recording mode. As a result, the user does not have to set the event recording in the continuous recording mode and the event recording in the monitoring recording mode separately, and the troublesomeness felt by the user can be reduced and the user can easily grasp the event.

The drive recorder 4 displays in red the options that cannot record the "recording time" and the "number of recorded frames" in the surveillance recording setting in the surveillance recording mode. As a result, the user can set either "recording time" or "recording frame number" that he / she wants to prioritize, and then set either "recording time" or "recording frame number" as a recordable option. Can be done. Further, the drive recorder 4 determines whether or not the position information output from the GPS sensor is included in the "surveillance my area" in the transition state to the surveillance recording mode. If it is determined that the location information is included in "Monitoring My Area" and the "Monitoring Recording Setting" is "Automatic", the recording conditions set in "Monitoring My Area" will be used as the recording conditions for monitoring recording. Execute the process. Similarly, in the transition state to the surveillance recording mode, when it is determined that the location information is included in the "monitoring my cancel area", the "surveillance recording setting" is "automatic", and the "REC" button is pressed. , Executes the subsequent processing with the recording condition set in "Monitoring My Cancel Area" as the recording condition for monitoring recording. As a result, the user can operate the drive recorder 4 without the trouble of setting it many times. Further, even if the position information does not match the position stored in the non-volatile storage unit, the drive recorder 4 is "monitoring my area" if it is "monitoring my area" and "monitoring my cancel area". And the shooting conditions associated with the "surveillance my cancel area" can be the shooting conditions this time.

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

Electrical components equipped with a function to receive radio waves retrofitted to the vehicle and antennas for reception are often installed especially on the dashboard or the upper part of the windshield, 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 electrical components, antennas, and the like can be greatly suppressed.

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

<Modification example>
Although the embodiment of the present invention is a desirable embodiment, the present invention is not limited to this, and it goes without saying that various improvements and changes can be made without departing from the spirit of the present invention.
For example, the value of the "recording resolution" option in the "surveillance recording setting" may be lower than the value of the "recording resolution" option in the continuous recording setting. Further, the value of the "number of recorded frames" option in the "monitoring recording setting" may be lower than the value of the "number of recorded frames" option in the continuous recording setting. In addition, among the options of "Recording resolution" and "Number of recording frames" in "Monitoring recording setting" and continuous recording setting, the initial value is clearly displayed, and "Recording resolution" and "Recording" in "Monitoring recording setting" are displayed. The initial value of "number of frames" may be lower than the initial value in the continuous recording setting. In surveillance recording, the vehicle often does not move, so even if the frame rate and resolution are reduced, it is possible to capture moving objects outside the vehicle. In addition, since it is possible to record an event by setting, when an event occurs, it is recorded. As a result, the recording conditions for surveillance recording can be reduced in power consumption. Since the amount of electric power supplied by the internal battery 34 is reduced, the internal battery 34 can be made to last longer.

Further, it has been described that the monitoring battery 3 receives power from the ACC power supply via the power cable 11 connected to the cigar socket of the vehicle, but 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. Further, although the output terminal 11a and the input connector 3a have been described as being miniUSB connectors, they may be USB connectors other than miniUSB. Further, although the input / output connector 3b and the first terminal 12a have been described as a 10-pin connector, the number of pins is not limited to 10 and the number of pins may be more or less. Further, although it has been explained that the DIP SW36 includes three switches, the number of switches is not limited.

Further, it has been explained that the monitoring battery 3 is supplied with power from the ACC power supply via the power cable 11, but the present invention is not limited to this. A mobile battery may be connected.

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

Further, the CPU 33 explained that when the power supply source is switched to the internal battery 34, the battery switching signal is transmitted to the drive recorder 4. In this way, when there is a change in the power supply state from the ACC power supply, a signal to that effect may be transmitted to the drive recorder 4, but a signal indicating the presence or absence of power supply from the ACC power supply may be transmitted, for example, for 1 second. It is preferable to transmit to the drive recorder 4 at predetermined time intervals such as intervals.

Further, it has been explained that the drive recorder 4 determines whether to shift to the surveillance recording mode or turn off the power of the drive recorder 4 when receiving the battery switching signal from the surveillance battery 3 in the constant recording mode. It is better to make a judgment based on a plurality of battery switching signals. For example, in the continuous recording mode, it is preferable to determine whether to shift to the monitoring recording mode when the battery switching signal is received a plurality of times in succession. By doing so, it is possible to prevent the monitoring battery 3 from being switched between the continuous recording mode and the monitoring recording mode when the power supply from the ACC power supply is interrupted for a moment and the monitoring battery 3 is restored. Similarly, it is preferable to determine whether to shift to the continuous recording mode based on the plurality of vehicle switching signals from the monitoring battery 3.

Further, it was explained that when the vehicle switching signal is received from the monitoring battery 3 and continuous recording is possible, the drive recorder 4 shifts from the monitoring recording mode to the continuous recording mode and starts continuous recording. However, by resetting the drive recorder, the drive recorder 4 is always The transition to the recording mode may be performed.

As a configuration for resetting, the drive recorder 4 itself may perform the reset process, but the drive recorder 4 transmits an instruction signal for turning off the power supply for a predetermined time to the monitoring battery 3, and the monitoring battery is used. When 3 receives this signal, it is preferable to stop the power supply to the drive recorder 4 for a predetermined time and then restart the power supply. In this way, switching from the surveillance recording mode to the continuous recording mode can be performed by performing a reliable reset of turning off the power, and it is possible to increase the possibility of more reliably recording the situation such as an accident such as continuous recording. it can. For example, when shifting from surveillance recording to continuous recording, the drive recorder 4 can be hard reset by turning off the output from the surveillance battery 3 for a predetermined time so that continuous recording can be started reliably and normally. Become.

For the predetermined time for the monitoring battery 3 to stop the power supply to the drive recorder 4 in order to reset the drive recorder 4, for example, the drive recorder 4 can be surely turned off after the monitoring battery 3 stops the power supply. It is better to have more time than you can. For example, when the drive recorder is equipped with a supercapacitor in addition to the configuration described in the drive recorder 4, the time may be longer than the maximum time required to close the file using the power from the supercapacitor or the like. .. For example, it is good to set it to about 3 seconds. The supercapacitor is charged while the drive recorder is being fed and discharged while the drive recorder is not being fed. Further, "closing the file" means, for example, completing the writing of data to the SD card.

However, after the user turns off the ACC power of the vehicle for parking, for example, the ACC power of the vehicle may be turned on and off again for operation when the electric mirror of the vehicle is retracted or the window is forgotten to be closed. .. In this case, the ACC power supply is repeatedly turned off, on, and off from the on state. If the second off timing is within the period during which the monitoring battery 3 stops supplying power to the drive recorder, various problems such as the inability to continue the monitoring recording may occur. This is because the ACC power supply may be switched from off to on, and after the monitoring battery 3 has stopped power supply for a predetermined time due to the shift to continuous recording, the ACC power supply may be turned off when the power supply is restarted. Therefore, this predetermined time is a time that can be surely turned off after the power supply to the drive recorder is stopped, and it is preferable that the predetermined time is as short as possible. For example, it may be 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 when the power supply to the drive recorder is stopped and the timing when the ACC power of the vehicle is turned off overlap is reduced. be able to. At the same time, this measure can shorten the non-recording period from the monitoring recording by turning on the ACC power of a normal vehicle to the start of continuous recording.

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

In addition, after the power of the drive recorder is turned on, the control unit performs various initialization processes and then starts continuous recording, etc., and after the power is turned on, a predetermined start time is set before starting continuous recording. It takes. Furthermore, depending on the configuration of the drive recorder, some are designed to start recording in the continuous recording mode first. Therefore, the monitoring battery 3 may transmit a signal indicating the presence or absence of power supply from the ACC power supply to the drive recorder at predetermined time intervals, and the power supply from the ACC power supply is received and the power supply to the drive recorder is started for a predetermined time. May output a signal to the drive recorder indicating that there is power supply from the vehicle regardless of whether or not power is supplied from the ACC power supply of the vehicle. This predetermined time may be, for example, about 10 seconds.

Further, it has been described that when the drive recorder 4 receives the battery switching signal from the monitoring battery 3, it transmits a signal instructing a specified time and a specified time, but 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 power supply after a lapse of a predetermined time.

Further, although the drive recorder 4 has explained that when it receives the battery switching signal from the monitoring battery 3, it transmits a signal for instructing a specified time, the timing of transmitting the signal for instructing 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, the drive recorder 4 may be configured to transmit at predetermined time intervals. The predetermined time is 1s, 1 minute, 3 minutes, or the like.

Further, it has been explained that when the CPU 33 does not receive the signal for asking the remaining amount of the internal battery 34, it is determined that the drive recorder having the communication function is not connected, but the received signal is not limited to the signal for asking the remaining amount. It may be a signal that commands a specified time. Further, the switch provided by the DIP SW36 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, the control unit has explained that the screens Sa14 to Sa17 are displayed and the setting of the recording condition is accepted, but the present invention is not limited to this. A configuration having a function of giving priority to the frame rate and automatically determining the maximum recordable time may be used. When the control unit receives a change in the set value of the "recorded frame number" on the screen Sa20 transitioning from the screen Sa16, the control unit calculates the "usable time" based on the set value of the "recorded frame number". The longest "recording time" option below the calculated "usable time" is determined as the "recording time" setting value. Alternatively, a configuration having a function of giving priority to resolution and automatically determining the maximum recordable time may be used.

Further, after shifting to the "surveillance recording mode", the control unit determines that the remaining amount of the SD card is insufficient, and when "surveillance recording overwrite" is set to "OFF", the screen Sa6 is displayed. Not limited to this. In this case, since surveillance recording cannot be performed if there is no remaining SD card, a screen may be displayed to notify by sound and display and to select whether to erase the surveillance recording or not to monitor recording. Here, the surveillance recording record is the recorded data recorded by the surveillance recording.

Further, in the continuous recording mode, when the battery switching signal is received from the monitoring battery 3, the screen Sa1 or the like is displayed according to the setting, but the present invention is not limited to this. When the engine is turned off, the screen may be automatically changed to the minimum required setting screen.

Further, the monitoring battery 3 has been described as having a set value transmitted by serial communication from the drive recorder 4 as a specified time, but the present invention is not limited to this. Instead of serial communication, a time corresponding to a 1-bit Hi / Low signal received and corresponding to the Hi / Low signal may be set as a set value. Specifically, the monitoring battery 3 receives a command indicating a specified time and a Hi or Low signal. The monitoring battery 3 stores a corresponding time of 3 hours when the signal is Hi and 6 hours when the signal is Hi. The monitoring battery 3 sets the time corresponding to Hi / Low of the signal to the specified time. The signal is not limited to 1 bit, and may be 2 bits or more.

Further, although it has been explained that the drive recorder 4 monitors and records according to the recording conditions of the set "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 parking areas, "surveillance my area". The recording conditions include the necessity / unnecessity of surveillance recording (parking monitoring), frame rate, recording time, and the like.

Further, although the control unit has explained that the image data in JPEG format is stored in the RAM, the format is not limited. It may be in MP4 format, MP2 format, H dot 264 format, or H dot 265 format.

Further, although the control unit has explained that the recorded data having a bit rate corresponding to the communication speed is transmitted, the bit rate of the recorded data to be transmitted is not limited to this. For example, when the communication speed is 100 Mbps, the transmission time may be long, but the data may be transmitted as 10 Mbps data.

Further, in the surveillance recording setting in the surveillance recording mode, "total capacity in the folder" may be added to the "recording time" item. The "total capacity in the folder" means that the surveillance recording is executed until the SD card is exhausted. Also, if "Recording time" is set to "Total capacity in the folder", the options are not displayed in red.

Further, although it has been explained that the frame rate in event recording is set to about 30 fps and the resolution is finely recorded to record details, the frame rate of event recording in surveillance recording may be lowered to make the resolution coarser. When a large vehicle passes by, the vibration is large and an event may be recorded. In places where large vehicles pass, it is expected that people who harm the vehicle often do not pass. For this reason, in event recording in surveillance recording, the frame rate may be lowered to make the resolution coarser, considering that it is safe.

In addition, it was explained that if the "SD" button or "MENU" button is not operated within a predetermined time after the screen Sa6 is displayed, no operation times out, but if there is a remaining amount of the SD card, that amount If only the recording is performed and there is no remaining capacity, the recording cannot be performed. Therefore, the user may be notified by sound and display, and a screen for selecting whether to erase the monitoring recording or not to record may be displayed.

In addition, the control unit explained that it shifts to the surveillance recording mode when it determines that the conditions for shifting to the surveillance recording mode are satisfied. It was explained that there are "My Area", "My Cancel Area", etc. in the items of the migration condition, but "Time" may be added to this to configure. From the set "time" and time, it is preferable to have a configuration that determines whether or not to shift to the surveillance recording mode. As a result, the user can perform surveillance recording only at night in, for example, "My Area". In addition to "My Area" and the like, for example, it may be configured to determine whether or not to shift to the surveillance recording mode only by "time". For example, if you want to record from 4 o'clock to 6 o'clock in the morning, enter the time you want to shoot the most (5 am), and the recording will always include that time. When the battery level or SD card capacity is insufficient, it is possible to select whether to prioritize the front side, the rear side, or the center of the time. Allocate the recording time zone to the one with priority. This allows the user to know in the morning whether it is a stray cat or a crow that has destroyed the garbage in the garbage storage area in front of the car.

Further, in the setting of "Registration execution" of "Monitoring My Area", it was explained that the point is registered based on the position information from the GPS sensor, but the present invention is not limited to this, and the map is displayed on the display 41 and the map is displayed to the user. It is also possible to specify the upper position and register the position on the map.

Further, in surveillance recording, for example, a motion detector may be used to automatically reduce the frame rate in the case of an image in which there is no change at all. Further, the frame rate may be increased and recorded from a few seconds before the change.

Also, in the surveillance recording, it was explained that the event recording will not be performed for 3 minutes from the start of the surveillance recording where the event occurs when the door is opened and closed. May be. In this way, the portion where the event recording due to the acceleration detected by the G sensor and the door recording overlap can be excluded based on the time when the recorded data is confirmed later.

Also, after displaying the opening screen, it was explained that the screen will transition to the screen that displays the message "There was an event recording during monitoring recording", but the event recording will not occur for a few seconds after the engine is turned off or for a few seconds before the engine is turned on. However, it may be configured not to notify that an event has occurred during the monitoring function when the engine is turned on.

Further, in the surveillance recording mode, the calculation method of the "usable time" displayed as the "surveillance 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 supplyable time based on the current currently energized, that is, the current consumption of the drive recorder 4. Alternatively, the monitoring battery 3 may be configured to calculate the supplyable time from the percentage of the remaining battery level and the preset current value. Alternatively, the monitoring battery 3 may be configured to know the model of the drive recorder 4 by communication and calculate the supplyable time based on the percentage of the remaining battery level and the current value determined from the model. The internal battery 34 may transmit the calculated supplyable time to the drive recorder 4, and the control unit may display the received supplyable time to the right of "monitoring recording time:".

Further, the specifications of the drive recorder 4 are preferably, but not limited to, the above-described configuration.
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 as separate bodies. In this case, the camera unit is installed on the windshield, for example, and the main body is installed on the dashboard, for example.

Further, although it has been explained that the drive recorder 4 includes a camera, the drive recorder 4 may be configured to include two cameras. In this case, the two signals from the camera may be combined into one signal and stored. Specifically, the screen is divided into, for example, two on the left and right, and signal processing is performed so that each is assigned to the data captured by each of the two cameras. The two signals from the camera are combined into one. As a result, the amount of recorded data can be reduced, and the time of recorded data that can be transmitted per unit time can be lengthened, especially when transmitting. Further, the number of divisions is not limited to two, and the number of divisions may be two or more.

Further, although the display 41 has been described as an LCD, the display 41 is not limited to this, and may be a touch panel. Alternatively, the configuration may not include a display. In the case of a product without a display, the user writes the settings on a recording medium such as an SD card, and inserts the SD card in which the settings are written into the drive recorder. The drive recorder reads the SD card and operates. The settings written in the SD card may be stored in the non-volatile storage unit for operation, or the settings stored in the SD card may be appropriately stored without being stored in the non-volatile storage unit. It may be configured to read and operate.

Further, the brightness of the indicator 35 may be changed between daytime and nighttime. If event recording is performed during surveillance recording, it will be displayed with bright daytime brightness even at night.

Although it has been explained that the drive recorder 4 has a communication function, the drive recorder 4 may be configured not to have a communication function. In this case, it is not possible to set a specified time for continuing power supply after the supply of the ACC power supply of the monitoring battery 3 is cut off. It can be powered only for hours.

Further, although it is described that the monitoring battery 3 outputs for a specified time, the entire remaining battery level may be supplied.

Further, for example, the built-in camera may be configured to be movable 360 degrees. In this way, it is possible to monitor the entire circumference outside the vehicle, so that the monitoring can be strengthened especially in the surveillance recording mode. Further, for example, the drive recorder may have a LoRa (Long Range) type wireless communication function, and may be operated by an attached remote controller capable of wireless communication as well. In this way, a user with a remote control at a remote location can be turned on / off for surveillance recording, periodically send recording time, switch recording settings, report an event occurrence, transfer a still image when an event occurs, and use the remote control. It can be saved inside. Further, 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 smartphone. The recording data of the event recording may be transferred within the reach of Wi-Fi.

Further, it has been described that the control unit included in the drive recorder 4 includes a CPU, a ROM, a RAM, a non-volatile storage unit, and the like, but the present invention is not limited thereto. For example, a PLD (Programmable Logic Device) or the like may be provided and the configuration may be such that they operate in cooperation with each other.

Further, although the drive recorder installed in the vehicle as an in-vehicle device has been exemplified, the present invention is not limited to this, and the drive recorder may be installed in a forklift. Since forklifts are often used for business purposes, it can be expected that an environment in which Wi-Fi can be used can be provided in the operating area of the forklift. In this case, it is preferable to use Wi-Fi for data transfer while the forklift is traveling.

The data transfer method is not limited to the above. In the above, it has been described that after the ACC power 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 recorded data stored in the SD card may be read and transmitted. Alternatively, the transmission method may be different between the recorded data of the event recording and the recorded data of the constant recording. For example, the recorded data of the event recording to be transmitted may be read from the RAM and transmitted. The RAM stores recorded data in which the image at the time of reproduction before being compressed for transmission is clearer than the recorded data stored in the SD card. On the other hand, the recorded data of constant recording may be read from the SD card and transmitted. In event recording, for example, an accident is often recorded, so that the details of the accident can be confirmed if the image is clearer than the recorded data stored in the SD card. Further, after the ACC power is turned off, all the recorded data including the data already transmitted during traveling may be transmitted at a uniform bit rate so as to obtain a uniform image. Further, the time and position information may be transmitted instead of the recorded data of the event recording. Further, after parking, the recorded data of the event recording may be transmitted first. Further, the recording data of the surveillance recording may be transmitted. Further, it may be configured to transmit the recorded 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 provided camera. For example, if the garbage storage is not directly in front of the parking lot but diagonally to the right, you need to turn the drive recorder diagonally forward to take the garbage storage, but the user has to change the direction of the camera. You may forget it. Therefore, when the engine is turned off (when it is turned on), or according to the position information measured by the GPS sensor, it is advisable to notify by voice or the like, "Please check the direction of the drive recorder." You may register the orientation and notify the orientation, or you may record a voice memo and play the voice memo. Furthermore, the orientation of the camera may be automatically moved by a motor.

Further, although it has been explained that the drive recorder 4 records an event according to a predetermined trigger, the trigger in the monitoring recording mode is not limited to the above, and an event recording configuration may be made in which the operation of ancillary equipment in the parking lot is used as a trigger. Robots and parking lots may cause harm to vehicles. Since the operation of the parking lot is related to the movement of another person, the event may be recorded by using the operation of the ancillary equipment of the parking lot as a trigger. In a gate-type parking lot, a gate opening / closing signal is received and an event is recorded as a trigger. In a flap-type parking lot where the flap installed on the ground comes into contact with the underside of the vehicle body, the flap type parking lot receives the flap raising / lowering signal and records the event as a trigger. In the mechanical three-dimensional parking type, it is preferable to record an event with a signal corresponding to the lateral movement and vertical movement of the bogie of the vehicle body with the G sensor. In this case, it is advisable to set the threshold value to the extent that the acceleration of the level generated by standing is detected as an event.

Further, the drive recorder 4 has been described as shifting to the surveillance recording mode according to the setting when receiving the battery switching signal in the continuous recording mode, but the present invention is not limited to this. Further, although it has been explained that the drive recorder 4 records an event according to a predetermined trigger, the present invention is not limited to this. If you park your car in the summer, the inside of the car will become hot, so you may be able to open the upper part of the window a little remotely. Therefore, the drive recorder 4 may be configured to shift to the event recording or monitoring recording mode with the trigger when the window is open, and to perform monitoring recording. In addition, it is good that the windows are not accessible.

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

Further, it has been described that when the drive recorder 4 receives the battery switching signal in the continuous recording mode, it shifts to the surveillance recording mode and starts the surveillance recording according to the setting, but the present invention is not limited to this. Further, although it has been explained that the drive recorder 4 records an event 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 monitoring recording or monitoring recording triggered by the approach of the drone. As a result, the drone can fall into the parking lot and record a contact accident with the vehicle. The approach of the drone may be detected by, for example, detecting the radio wave emitted by the drone or recognizing an image.

Further, the drive recorder 4 has been described as shifting to the surveillance recording mode according to the setting when receiving the battery switching signal in the continuous recording mode, but the present invention is not limited to this. It may be configured to be linked with the map data of the navigation so that the recording is automatically performed when the vehicle is parked in a high-risk area. When the vehicle position is within a high-risk area, the configuration may be such that the mode shifts to the surveillance recording mode. Alternatively, the recording condition may be set to 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 theft-prone area, a crime-prone area, and the like, and is information published on the website of the Metropolitan Police Department, for example.

Further, the drive recorder 4 has been described as shifting to the surveillance recording mode according to the setting when receiving the battery switching signal in the continuous recording mode, but the present invention is not limited to this. Record when parking while EV is charging. Alternatively, set the recording conditions to a higher level than usual. In recent years, EV chargers have been installed in commercial facilities and the like. Recording is effective because it may be easily tampered with while charging the EV. The determination may be made based on the area of the EV station of the map data, or the charging state of the vehicle may be acquired from OBD (On-board diagnostics) or the like for determination.

Further, the drive recorder 4 may be configured to have a function of stopping the recording of surveillance recording when the amount of light cannot be captured, such as at midnight. It is good to control the power supply from the battery by judging the brightness with an optical sensor other than the image sensor provided in the camera, because power can be saved.

Further, it has been explained that when the drive recorder 4 receives the battery switching signal in the continuous recording mode, it shifts to the surveillance recording mode and starts the surveillance recording according to the setting, and when the surveillance recording time expires, the power is turned off. Not limited to this. Even if the drive recorder 4 is configured with a function to stop the recording of surveillance recording when the amount of packets flowing through the CAN (Control Area Network) of OBD is low and to record the surveillance recording when the amount of packets is large. good. A situation in which a large number of packets flow even though the engine is turned off is likely to be a situation in which the vehicle sensor detects some movement around the vehicle, so recording is effective.

Further, in the explanation 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 at the center position of the "monitoring my area". It was explained that it is recorded in the non-volatile storage unit. When the position registered as "surveillance my area" or "surveillance my cancel area" is an indoor parking lot, there arises a problem that it is difficult to acquire the position by the GPS sensor or the position accuracy is low. Therefore, for example, the position where the positioning could be performed or the position where the positioning could be performed with an accuracy higher than a predetermined value (it is preferable to determine based on the GPS positioning accuracy information) retroactively from the time when the registration operation was performed. It is good to use the position to register. For example, position information (and positioning accuracy information) was acquired at predetermined time intervals (for example, 1 second), the position information was stored as a position history, and positioning was possible by tracing back the history at the time of registration. It is preferable to set the position or the position where the positioning has been performed with an accuracy equal to or higher than a predetermined value to be registered.

Not limited to the above-described embodiment, various modifications and the like can be taken. Next, the monitoring battery according to the modification 1 which is a modification of the monitoring battery 3 will be described with reference to FIGS. 24 to 26. As shown in FIG. 24, the monitoring battery according to the first modification has an input connector into which the input code of the monitoring battery is inserted, an input / output connector into which the output code is inserted, a USBType A connector, and a DIP on the front of the mechanism case of the monitoring battery. It is equipped with a switch, a plurality of LEDs, and the like. Here, the input code corresponds to the power cable 11 in the monitoring battery 3. The output code corresponds to the cable 12 in the monitoring battery 3. Although the power cable 11 of the monitoring battery 3 has been described as having a cigar plug at one end, it may be configured to include 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 a vehicle ACC power supply that turns ON / OFF in conjunction with the engine key. The USBType 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 referred to as an accessory power supply.

It has been described that the DIP switch DIPSW36 of the monitoring battery 3 includes three switches, but as shown in FIG. 25, the monitoring battery according to the first modification includes four DIP switches. By combining ON / OFF of 4 DIP switches, the specified time can be set to 0.5 hours, 1 hour, 2 hours, 3 hours, 4 hours, 6 hours, 12 hours, or the specified time by the DIP switches. Set not to set. In the description of the DIP switch of FIG. 25, the upper / lower means ON / OFF of the DIP switch, respectively.

As shown in FIG. 26, the indicator of the monitoring battery according to the first modification includes six LEDs. The six LEDs are an LED that lights up when power is supplied to the monitoring battery from the ACC power supply, an LED that lights up while the built-in battery is charging, and four LEDs that light up according to the remaining amount of the built-in battery. .. The internal battery of the monitoring battery is configured so that it can be replaced when its life is shortened. In addition, the monitoring battery may be used in places that interfere with driving or operating the air bag, in places that receive hot air such as air conditioners and heaters, in places that are exposed to direct sunlight, in unstable places, due to wire biting or friction of the coating. , Avoid places where there is a possibility of disconnection or short circuit, and near vehicle electrical equipment (including antennas).

Next, the monitoring battery according to the modification 2 which is a modification of the monitoring battery 3 will be described with reference to FIGS. 27 to 31. As shown in FIG. 27, eight DIP switches, a power switch, and an indicator LED are provided on the flat surface of the mechanism case of the monitoring battery according to the second modification, an input terminal is provided on the left side surface, and an output cable is provided on the front surface. Here, the input terminal corresponds to the input connector 3a in the monitoring battery 3. The output cable corresponds to the cable 12 in the monitoring battery 3. The power switch is a switch for switching the power ON / OFF of the monitoring battery, and when the power switch is OFF, the input of power to the monitoring battery and the output of power from the monitoring battery are cut off. This allows the user to safely remove the surveillance battery. In addition, the DIP switch is installed closer to the bottom surface than the power switch.

Further, 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. Has. The input code corresponds to the power cable 11 in the monitoring battery 3. In this way, the monitoring battery may be supplied with power from the battery power supply of the vehicle, which is constantly supplied regardless of whether the engine is ON or OFF, in addition to the accessory power supply, and the charge / discharge control unit 31 may receive power from the battery power supply. It may be operated by receiving power from. Further, as shown in FIG. 29, the monitoring battery according to the second modification includes an LED that lights up when the engine is turned on and during the operation of the monitoring battery.

The monitoring battery according to the second modification monitors the power supply of the battery power supply of the vehicle, and stops the power output from the monitoring battery when the voltage becomes equal to or lower than the set voltage (hereinafter referred to as the detection voltage). Further, after the engine of the vehicle is turned off, electric power is output for a specified time (hereinafter referred to as an off timer) in the same manner as the monitoring battery 3. As shown in FIG. 30, the detection voltage may be switched between 12V and 24V by three DIP switches. It accepts any of 11.6V, 11.8V, 12V, and 12.2V settings to support the case where the vehicle battery specifications are 12V. Similarly, in order to correspond to the case where the specification of the battery of the vehicle is 24V, the setting of + 0.2V, ± 0V, -0.2V, -0.4V is accepted with respect to 24V. Here, by increasing the setting values on the minus side to two and one on the plus side with respect to the specifications of the battery of the vehicle, the monitoring battery can continue to output even if the battery of the vehicle becomes low. You can. As shown in FIG. 31, the off-timer setting is received by three DIP switches different from the detection voltage setting, as in the monitoring battery of the first modification. As shown in FIG. 30, of the eight DIP switches arranged in a row, three are assigned to the detection voltage setting, three are assigned to the off-timer setting, and two are not used. By arranging the unused one between the three used for setting the detection voltage and the three used for setting the off timer, setting mistakes by the user can be suppressed.

Further, in the description of the method 4 of the data transfer method, it has been explained that the image data has a plurality of P frames for one I frame, but the image data may have a configuration that does not have the P frames. Further, although it has been explained that the communication compression unit 45 creates three I frames in 1 s, the number of frames is not limited. The number of I-frames per s may be less than 3 or 4 or more. In the case of a video with little movement, the number of frames should be reduced, and in the case of a video with a lot of movement, the number of frames should be increased. 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 rate according to the communication speed. Further, although it has been explained that the communication data configuration 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 configured to be located before the I frame or after the P frame.

Further, although it has been explained that a serial number is assigned to each frame, a serial number is assigned to the communication data of one communication unit arranged in a time series, and a serial number is assigned to each frame in one communication unit. Is also good. For example, the communication data of the first communication unit is number 1, the communication data of the second communication unit is number 2, the P frame of the communication data of the first communication unit is number 1, and the next P frame is. The P frame of the communication data of the second communication unit is also number 1, and the next P frame is number 2. In this way, the frame can be specified by the number of the frame of the communication data of the one communication unit. Further, the identifier to be assigned is not limited to the serial number, and may be any sortable identifier. For example, the time and date may be used, and any combination of serial number, time, and date may be used.

Further, in step S5 of the communication process, it was explained that the audio data for the I frame, the P frame, and one section for which the communication data could not be transmitted is stored in the SD cards 61 and 62. The communication data of the communication unit may be stored in the SD cards 61 and 62. Further, when the communication is restored and the data is transmitted again, the communication data of one communication unit may be transmitted.

Further, it has been explained that during the continuous recording period, the SD card interface 47 alternately switches the writing destination of the storage data between the SD card 61 and the SD card 62, for example, every 10 s, but the period is not limited. However, it is preferable that the time is longer than the time required for shooting the communication data of one communication unit.

Further, it has been 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 transmission could not be performed. In step S9 of the communication process, it was explained that the fact that the data could not be transmitted is stored in the RAM. The information associated with the identifier that identifies the data is stored in the RAM, and when communication becomes possible, the information is referred to to identify the SD card that stores all or part of the communication data that could not be transmitted. May be.

Further, in the explanation of FIG. 19 of another example of the drive recorder, it has been explained that the communication compression unit 45 automatically changes the data capacity according to the current communication rate. The change so that transmission can be performed in real time according to 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 it has been explained in another example of the drive recorder shown in FIG. 19 that two SD cards are inserted, a configuration in which one SD card is inserted may be used. Also in this case, the drive recorder may be configured to divide the storage area of the SD card into a storage area and a communication area and write the recorded data.

Further, 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 to specify, or all frames may be numbered serially. When there are a plurality of I-frames in one communication unit, the I-frame group may be transmitted in succession, and then the P-frame group following the I-frame group may be transmitted. A group of frames in alternating order such as I frame, P frame, and so on may be set as one communication unit.

It is good to be able to set the frame rate. For example, 1 fps, 5 fps, and 10 fps are preferable. It is preferable to change the number of I-frames to be included in one communication unit depending on the frame rate. The higher the frame rate, the more I-frames can be included in one communication unit.

The configuration is not limited to the above embodiment, and the configuration of the above embodiment and the configuration of the above modification may be arbitrarily combined. Further, a part of the configuration of the above embodiment and a part of the configuration of the modification may be arbitrarily combined. In addition, a part of the configuration described in "Means for Solving the Problem", a part of the configuration of the above embodiment, and a part of the configuration of the modification may be arbitrarily combined.

1 System 3 Monitoring battery 3a Input connector 3b Input / output connector 4 Drive recorder 4a Input / output connector 11 Power cable 12 Cable 31 Charge / discharge control unit 34 Internal battery 33 CPU
35 Indicator 36 DIP switch DIPSW
47 SD card interface 52 Mobile communication interface

Claims (7)

An in-vehicle device equipped with a means of photography
A switching function for switching the writing destination of data based on the image captured by the photographing means between a plurality of recording media, and
It is equipped with a wireless communication function that transmits data based on the video.
When the data based on the video cannot be transmitted by the wireless communication function,
It is characterized in that data based on the video that could not be transmitted is read from a recording medium that stores data based on the video that could not be transmitted during a period when the recording medium is not the writing destination, and is transmitted by the wireless communication function. In-vehicle device. An in-vehicle device having a function of receiving the switching signal from a device that outputs a switching signal indicating that the power supply source has been switched from the vehicle to a battery mounted on a device separate from the vehicle.
The in-vehicle device is
It is a drive recorder that shoots the outside of the car based on the shooting conditions,
A positioning means for positioning the position of the vehicle and
A storage means for storing the shooting conditions set by the user in association with the position is provided.
Upon receiving the switching signal,
An in-vehicle device, characterized in that, when the position this time is within a predetermined area of the position stored in the storage means, the shooting condition associated with the position is determined as the shooting condition this time. An in-vehicle device having a function of receiving the switching signal from a device that outputs a switching signal indicating that the power supply source has been switched from the vehicle to a battery mounted on a device separate from the vehicle.
The in-vehicle device is
It is a drive recorder that shoots the outside of the vehicle based on the shooting conditions during the first period when the power supply source is the vehicle.
Shooting means and
A recording means for recording an image taken by the shooting means, and
A transmission means for transmitting the image via a network is provided.
Upon receiving the switching signal,
An in-vehicle device characterized in that the image that could not be transmitted in the first period is transmitted during the period when the power supply source is the battery. An in-vehicle device having a function of receiving the switching signal from a device that outputs a switching signal indicating that the power supply source has been switched from the vehicle to a battery mounted on a device separate from the vehicle.
The in-vehicle device is
It is a drive recorder that shoots the outside of the vehicle based on the shooting conditions during the first period when the power supply source is the vehicle.
Shooting means and
A recording means for recording an image taken by the shooting means, and
A transmission means for transmitting the image via a network is provided.
In the first period, the bit rate of the image is lowered and transmitted.
Upon receiving the switching signal,
An in-vehicle device characterized in that when the communication speed is faster than a reference value, the image having a bit rate higher than that of the first period is transmitted. An in-vehicle device having a function of receiving the switching signal from a device that outputs a switching signal indicating that the power supply source has been switched from the vehicle to a battery mounted on a device separate from the vehicle.
The in-vehicle device is
It is a drive recorder that shoots the outside of the vehicle based on the shooting conditions during the first period when the power supply source is the vehicle.
Shooting means and
A switching function for switching the writing destination of data based on the image captured by the photographing means between a plurality of recording media, and
It is equipped with a wireless communication function that transmits data based on the video.
When the data based on the video cannot be transmitted by the wireless communication function,
It is characterized in that data based on the video that could not be transmitted is read from a recording medium that stores data based on the video that could not be transmitted during a period when the recording medium is not the writing destination, and is transmitted by the wireless communication function. In-vehicle device. A system including the in-vehicle device according to any one of claims 2 to 5 and the device.
The device
A communication means for communicating with the in-vehicle device and
With a control unit
The control unit
A system characterized in that when the power supply source to the in-vehicle device is switched from the vehicle to the battery, a switching signal indicating that the power supply source has been switched to the battery is output to the in-vehicle device by the communication means. A system including the in-vehicle device according to any one of claims 2 to 5 and the device.
The device is a device that is interposed between the vehicle and the in-vehicle device and supplies power to the in-vehicle device.
The device
It is a separate body from the in-vehicle device.
With the battery
A charge / discharge control unit, which is a control unit that controls charging of the battery and power supply to the in-vehicle device, is provided.
The charge / discharge control unit
When power is being supplied from the vehicle, power is supplied to the in-vehicle device and the battery is charged using the vehicle as a power supply source.
A system characterized in that, when the power supply from the vehicle is cut off, the power supply source to the vehicle-mounted device is switched from the vehicle to the battery, and the power supply to the vehicle-mounted device is continued for a predetermined period.

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