JP2023142359A - Video recording device and video recording program - Google Patents

Abstract

To be able to record a video obtained by imaging an inside/outside of a vehicle at a low cost.SOLUTION: A video recording device according to the present invention includes a first receiving unit that receives a first video from a first imaging device that images a rear of a vehicle to generate a first video, a second receiving unit that receives a second video from a portable terminal that images at least one of a front of the vehicle and an inside of the vehicle to generate the second video, and a recording unit that records the first video and the second video in an overwriting folder to be overwritten when a capacity for recorded videos exceeds a predetermined capacity, or a storage folder to be protected a video from being overwritten.SELECTED DRAWING: Figure 2

Description

The present disclosure relates to a video recording device and a video recording program.

2. Description of the Related Art There is a known technology for capturing and recording images of the inside and outside of a vehicle using a camera or the like attached to the vehicle body. In this case, a plurality of cameras are required to take images of the inside and outside of the vehicle, which increases the cost of the entire system.

JP2016-005234A

An object of the present disclosure is to provide a video recording device and a video recording program that can inexpensively record video captured inside and outside a vehicle.

The video recording device according to the present disclosure includes: a first receiving unit that receives the first video from a first imaging device that images the rear of the vehicle and generates the first video; a second receiving unit that receives the second video from a mobile terminal that images at least one of the interior of the vehicle and generates a second video, and records the first video and the second video; The storage device includes a recording unit that records the video in an overwrite folder that is overwritten when the video exceeds a predetermined capacity, or a storage folder that does not overwrite the video.

According to the video recording device and the video recording program according to the present disclosure, it is possible to record video captured inside and outside a vehicle at low cost.

FIG. 1 is a schematic diagram showing an example of a vehicle equipped with a drive recorder unit according to an embodiment. FIG. 2 is a block diagram showing an example of the configuration of the video recording system according to the embodiment. FIG. 3 is a block diagram showing an example of the configuration of the display unit according to the embodiment. FIG. 4 is a block diagram showing an example of the configuration of the mobile terminal according to the embodiment. FIG. 5 is a flow diagram illustrating an example of the procedure of video recording processing by the drive recorder unit and mobile terminal according to the embodiment. FIG. 6 is a flow diagram illustrating an example of the procedure of video recording processing performed by the drive recorder unit according to the embodiment using the navigation function of the mobile terminal. FIG. 7 is a flow diagram illustrating an example of a setting process procedure performed by the drive recorder unit according to the embodiment using the authentication function of the mobile terminal.

Embodiments of a video recording device and a video recording program according to the present disclosure will be described below with reference to the drawings.

(Example of vehicle configuration)
FIG. 1 is a schematic diagram showing an example of a vehicle 5 including a drive recorder unit 10 according to an embodiment. As shown in FIG. 1, the vehicle 5 of the embodiment includes, for example, a drive recorder unit 10, a rear camera 32, a display device 25, a display 45, and a terminal holder 59.

The rear camera 32 is provided, for example, on the rear window of the vehicle 5. The rear camera 32 images the rear of the vehicle 5 and generates a rear image. The rear image is an example of the first image. The rear camera 32 is an example of a first imaging device.

The drive recorder unit 10 is housed in, for example, a console box of the vehicle 5. The drive recorder unit 10 records an image captured by a mobile terminal, which will be described later, and a rear image captured by a rear camera 32. The drive recorder unit 10 is an example of a video recording device.

The display device 25 is a liquid crystal display or the like that displays the rear view of the vehicle, and is, for example, a mirror-type electronic mirror modeled after a mirror for checking the rear view of the vehicle. The display device 25 displays a rearward image that has been subjected to predetermined processing by an electronic control unit (ECU) formed integrally with the display device 25, for example. The display device 25 is an example of a display device. An electronic mirror is an example of a mirror type display device.

Note that the display device 25 in FIG. 1 is configured as an electronic mirror in the shape of a room mirror, but if the display device 25 is configured as an electronic mirror, it may be used as a rear view mirror such as a door mirror or a fender mirror. It may have the shape of a mirror.

The display 45 is, for example, a panel-type liquid crystal display fitted into an instrument panel or the like. The display 45 displays the video processed by the drive recorder unit 10. The display 45 may display an omnidirectional bird's-eye view image, etc., which is a composite of images from a plurality of cameras that capture images of the outside of the vehicle, including the rear camera 32.

The terminal holder 59 is provided on, for example, an instrument panel, and is configured to be able to hold a mobile terminal owned by a user such as a driver of the vehicle 5.

Note that the drive recorder unit 10, rear camera 32, display device 25, and display 45 described above are part of a video recording system described later. A terminal holder 59 may be included in the video recording system.

(Example of configuration of video recording system)
FIG. 2 is a block diagram showing an example of the configuration of the video recording system 1 according to the embodiment. As shown in FIG. 2, the video recording system 1 of the embodiment includes a drive recorder unit 10, a display unit 20, a rear camera 32, and a display unit 40, and is configured to be able to be mounted on, for example, the above-mentioned vehicle 5. The video recording system 1 also includes a mobile terminal 50 owned by the user.

The mobile terminal 50 is a smartphone, a mobile phone, a tablet terminal, etc. owned by a user such as a driver or a fellow passenger of the vehicle 5. While the vehicle 5 is running, the mobile terminal 50 is held in the terminal holder 59 and captures an image of the surroundings of the vehicle 5 using a built-in camera. The detailed configuration of the mobile terminal 50 will be described later.

The drive recorder unit 10 includes a main microcomputer 11, a sub-microcomputer 12, a serializer 13p, a serializer 13m, a deserializer 14m, a recording device 15, a G sensor 16, a WiFi (registered trademark)-IC module 17, and an antenna 18.

The main microcomputer 11 is a computer that includes a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory). The main microcomputer 11 is configured as an SoC (System on Chip) including, for example, an image processing processor 11p that processes images captured by the mobile terminal 50 and the rear camera 32.

The CPU of the main microcomputer 11 loads a video recording program stored in a ROM or the like into a RAM and executes it, thereby realizing the function of the drive recorder unit 10 as a video recording device, which will be described below.

The main microcomputer 11 receives the rear video generated by the rear camera 32 from the deserializer 14m as a video signal SGvr. Further, the main microcomputer 11 receives the video generated by the mobile terminal 50 from the WiFi-IC module 17 via the antenna 18 as a video signal SGvs.

The image processing processor 11p processes the video received from the mobile terminal 50 and the rear video received from the rear camera 32. In video processing by the image processing processor 11p, for example, color and contrast adjustment, etc., are performed to suit video recording and display on the display 45.

Further, the main microcomputer 11 controls the WiFi-IC module 17 and the serializer 13p by transmitting a control signal SGc to the WiFi-IC module 17 and the serializer 13p.

For example, when a video is transmitted from the mobile terminal 50 to the drive recorder unit 10, the main microcomputer 11 causes the WiFi-IC module 17 to receive the video signal SGvs from the mobile terminal 50 via the antenna 18.

For example, after processing the images from the mobile terminal 50 and the rear camera 32, the main microcomputer 11 causes the serializer 13p to transmit the processed images to the display unit 40.

The video processed by the main microcomputer 11 is also stored as a recorded video in a recording device 15, which will be described later, via the sub-microcomputer 12.

The main microcomputer 11 also notifies the sub-microcomputer 12 of various statuses by transmitting a status signal SGs to the sub-microcomputer 12. The various statuses include, in addition to the status of the main microcomputer 11 itself, information such as whether or not a failure has occurred in devices under the control of the main microcomputer 11, such as the serializer 13p and the display unit 40.

Upon receiving the control signal SGc from the main microcomputer 11, the serializer 13p transmits the processed video received from the main microcomputer 11 to the display unit 40. At this time, the serializer 13p converts the parallelized video into serial data and transmits the data to the display unit 40 as a video signal SGvs and a video signal SGvr, respectively.

The WiFi-IC module 17 is configured to be able to transmit and receive information between the drive recorder unit 10 and the mobile terminal 50 via WiFi communication. The WiFi-IC module 17 transmits and receives information between the drive recorder unit 10 and the mobile terminal 50 in the form of WiFi radio waves via the antenna 18. The WiFi-IC module 17 and antenna 18 are an example of a second receiving section.

The sub-microcomputer 12 is a computer including a CPU, a ROM, and a RAM, and is configured as, for example, an MCU (Micro Controller Unit).

The sub-microcomputer 12 controls the serializer 13m and the deserializer 14m by transmitting a control signal SGc to the serializer 13m and the deserializer 14m.

For example, when a rear image is transmitted from the rear camera 32 to the drive recorder unit 10, the sub-microcomputer 12 causes the deserializer 14m to receive the rear image from the rear camera 32.

For example, when the deserializer 14 m receives the rear video, the sub-microcomputer 12 causes the serializer 13 m to transmit the unprocessed rear video to the display unit 20 .

Further, the sub microcomputer 12 notifies the main microcomputer 11 of various statuses by transmitting a status signal SGs to the main microcomputer 11. The various statuses include the status of the sub-microcomputer 12 itself, as well as the presence or absence of a failure in devices under the control of the sub-microcomputer 12, such as the serializer 13m, deserializer 14m, G sensor 16, rear camera 32, and display unit 20. Contains information.

Further, the sub microcomputer 12 stores the video from the mobile terminal 50, the rear video from the rear camera 32, etc. received from the main microcomputer 11 in the recording device 15 in an overwrite mode or a storage mode. In the overwrite mode, when the number of videos recorded on the recording device 15 exceeds a certain amount, the videos are stored by sequentially overwriting old videos with new videos. In the save mode, recorded video is saved without being overwritten by new video.

When recording video on the recording device 15, the sub-microcomputer 12 switches between the overwrite mode and the storage mode according to the content of the instruction input from the user or based on the detection result of the G sensor 16.

When the deserializer 14m receives the control signal SGc from the sub-microcomputer 12, it receives the rearward image transmitted from the rear camera 32. At this time, the deserializer 14m converts the rear video transmitted as the serialized video signal SGvr into parallel data. Further, the deserializer 14m transmits the parallelized rear video to the main microcomputer 11 and the serializer 13m in the form of a video signal SGvr. The deserializer 14m is an example of a first receiving section.

When the serializer 13m receives the control signal SGc from the sub-microcomputer 12, it transmits the unprocessed rear video received from the deserializer 14m to the display unit 20. At this time, the serializer 13m converts the parallelized rear video into serial data and transmits it to the display unit 20 as a video signal SGvr. The serializer 13m is an example of a transmitter.

The recording device 15 records an image captured by the mobile terminal 50 and a rear image captured by the rear camera 32. The recording device 15 has an overwrite area such as an overwrite folder, and a storage area such as a storage folder. In the overwrite area, in the overwrite mode described above, when the recorded video exceeds a certain amount, the video is saved by sequentially overwriting the old video with a new video. In the storage area, the recorded video is stored without being overwritten by new video in the storage mode described above. The recording device 15 is an example of a recording section.

The G sensor 16 is an acceleration sensor or the like that detects acceleration applied to the vehicle 5. The G sensor 16 transmits, for example, detection results to the sub-microcomputer 12 at predetermined intervals.

Note that the transmission of the control signal SGc from the main microcomputer 11 to the serializer 13p and the WiFi-IC module 17 and the transmission of the control signal SGc from the sub-microcomputer 12 to the serializer 13m and deserializer 14m are performed in, for example, I2C (Inter-Integrated Circuit) format. It will be held in

Further, the transmission and reception of the video signal SGvs and the video signal SGvr between the main microcomputer 11 and the serializer 13p, and the transmission of the video signal SGvr from the deserializer 14m to the main microcomputer 11 and the serializer 13m are performed, for example, in the MIPI (Mobile Industry Processor Interface) format. be exposed.

Further, the transmission and reception of the video signal SGvs and the video signal SGvr between the serializer 13p, the serializer 13m, and the deserializer 14m, and the rear camera 32, display unit 20, and display unit 40 is performed using, for example, FPD-Link III (Flat Panel Display-Link). III) carried out in the form.

Note that for these video transmissions, for example, a coaxial cable or Wi-Fi can be used.

Furthermore, the transmission and reception of the status signal SGs between the main microcomputer 11 and the sub-microcomputer 12 is performed, for example, in a UART (Universal Asynchronous Receiver/Transmitter) format.

The display unit 40 includes, for example, a panel-type display 45, and is configured as, for example, a part of an in-vehicle infotainment (IVI) system.

The processed video that the display unit 40 receives from the drive recorder unit 10 is delivered to the display 45 and displayed on the display 45. The image displayed on the display 45 is used, for example, to display the situation outside the vehicle in parking assistance, to display a parking space, and to display a parking route.

The display unit 20 includes an ECU 21 and a display device 25.

The ECU 21 receives unprocessed rearward video from the drive recorder unit 10 and processes it. The rearward image processed by the ECU 21 is delivered to the display device 25 and displayed on the display device 25, and is used for purposes such as checking the rear of the vehicle 5, for example.

Note that the display unit 20 can also directly receive a rearward image from the rear camera 32. That is, the function of receiving a rearward image from the drive recorder unit 10 can also be used as a function of receiving a rearward image from the rear camera 32.

In this case, the drive recorder unit 10 may receive from the display unit 20 a rearward image processed by the display unit 20 instead of directly receiving the rearward image from the rear camera 32 . That is, in this case, the main microcomputer 11 of the drive recorder unit 10 does not need to process the rear video. Further, the sub-microcomputer 12 stores the processed rearward image received from the display unit 20 in the recording device 15.

Here, the main microcomputer 11, serializer 13p, WiFi-IC module 17, antenna 18, and display unit 40 constitute the main control block 2. In the main control block 2, the serializer 13p, the WiFi-IC module 17, the antenna 18, and the display unit 40 are placed under the control of the main microcomputer 11. The main microcomputer 11 appropriately notifies the sub microcomputer 12 of the status such as whether a failure or the like has occurred in the main control block 2 including itself.

Further, the sub-microcomputer 12, serializer 13m, deserializer 14m, recording device 15, G sensor 16, rear camera 32, and display unit 20 constitute the sub-control block 3. In the sub control block 3, the serializer 13m, deserializer 14m, recording device 15, G sensor 16, rear camera 32, and display unit 20 are placed under the control of the sub microcomputer 12. The sub microcomputer 12 appropriately notifies the main microcomputer 11 of the status of whether or not a failure has occurred in the sub control block 3 including itself.

The main control block 2 and the sub-control block 3 can operate independently of each other. Therefore, even if some kind of failure occurs in the main control block 2, for example, the sub control block 3 can continue to operate. By continuing to operate the sub-control block 3, for example, the display device 25 can continue to display a rearward image.

Furthermore, the main microcomputer 11 and the sub-microcomputer 12 can operate independently of each other. Therefore, even if some kind of failure occurs in the main microcomputer 11, for example, the sub microcomputer 12 continues to operate, and, for example, the display device 25 continues to display the rearward image.

Below, a more detailed configuration of the above-mentioned display unit 20 will be described using FIG. 3. FIG. 3 is a block diagram showing an example of the configuration of the display unit 20 according to the embodiment.

As shown in FIG. 3, the display unit 20 includes an ECU 21, an operation section 22, a recording section 23, a deserializer 24, and a display device 25.

ECU 21 is a computer including a CPU, ROM, and RAM. The ECU 21 includes, for example, an image processing processor 21p that processes images captured by the rear camera 32.

The image processing processor 21p processes the rear image from the rear camera 32. In video processing by the image processing processor 21p, for example, color and contrast adjustments are performed to suit display on the display device 25.

The operation unit 22 is a user interface. That is, the operation unit 22 accepts settings from the user regarding the display method on the display device 25, such as brightness, image quality, and camera angle. Further, the operation unit 22 presents various information such as the status of the display unit 20 to the user.

The recording unit 23 stores, for example, settings made by the user, such as a display method, and various parameters regarding the operation of the display unit 20.

The deserializer 24 receives a rearward image transmitted from the drive recorder unit 10 or the rear camera 32. At this time, the deserializer 24 converts the rear video transmitted as the serialized video signal SGvr into parallel data. Further, the deserializer 24 transmits the parallelized rear video to the ECU 21 in the form of a video signal SGvr.

As described above, the display device 25 is a liquid crystal display or the like that displays the rear view of the vehicle, and is, for example, a mirror-type electronic mirror modeled after a mirror for checking the rear view of the vehicle. The display device 25 has the form of a rear view mirror such as a room mirror, a door mirror, or a fender mirror.

The detailed configuration of the above-mentioned mobile terminal 50 will be described below using FIG. 4. FIG. 4 is a block diagram showing an example of the configuration of the mobile terminal 50 according to the embodiment.

As shown in FIG. 4, the mobile terminal 50 includes a control unit 51, an in-camera 52in, an out-camera 52ot, a speaker 53, an operation switch 54s, a display unit 54m, an external memory 55, an acceleration sensor 56a, a gyro sensor 56b, a GPS (Global (Positioning System) receiver 56c, a WiFi-IC module 57, and an antenna 58.

The control unit 51 is a computer including a CPU, ROM, and RAM, and has a DVR application 510 installed therein that works in conjunction with the drive recorder unit 10 to realize various functions.

As a result, the control unit 51 transmits, for example, the interior image of the vehicle 5 captured by the in-camera 52in and the front image of the vehicle 5 captured by the out-camera 52ot to the drive recorder via the WiFi-IC module 57 and the antenna 58. Transmit to unit 10.

The in-camera 52in is provided on the front side of the mobile terminal 50, that is, on the display screen side of the display section 54m. The in-camera 52in generates an image of the interior of the vehicle on the front side of the screen of the display section 54m of the mobile terminal 50 held in the terminal holder 59, that is, the side toward which the display section 54m faces. The in-camera 52 inches is an example of a second imaging device. The interior image of the vehicle 5 is an example of the second image.

The out camera 52ot is provided on the back side of the mobile terminal 50. The outside camera 52ot generates a front image that captures the front of the back side of the mobile terminal 50 held by the terminal holder 59, that is, the front of the vehicle 5, which is the side toward which the back of the mobile terminal 50 faces. The out camera 52ot is an example of a third imaging device. The front image of the vehicle 5 is an example of the second image.

The speaker 53 outputs audio according to the audio signal input from the control unit 51.

The operation switch 54s includes various switches such as a mechanical switch provided around the display section 54m and a touch switch provided overlappingly on the front surface of the display section 54m, and sends a signal according to the user's switch operation to the control section 51. Output to.

The display section 54m is a liquid crystal display or the like, and displays an image based on the image signal input from the control section 51.

The external memory 55 is a recording medium such as an SD card.

Acceleration sensor 56 a detects acceleration applied to mobile terminal 50 and outputs an acceleration signal to control unit 51 . The gyro sensor 56b detects each angular velocity of the mobile terminal 50 in the three-axis directions (xyz-axis directions) and outputs an angular velocity signal to the control unit 51. The GPS receiver 56c receives a positioning signal from a satellite positioning system and outputs position information indicating the current location of the mobile terminal 50 to the control unit 51.

The WiFi-IC module 57 is configured to be able to transmit and receive information between the drive recorder unit 10 and the mobile terminal 50 via WiFi communication. The WiFi-IC module 57 transmits and receives information between the drive recorder unit 10 and the mobile terminal 50 in the form of WiFi radio waves via the antenna 58.

(Processing example 1 of drive recorder unit)
Next, an example of video recording processing by the drive recorder unit 10 and the mobile terminal 50 of the embodiment will be described using FIG. 5. FIG. 5 is a flow diagram illustrating an example of the procedure of video recording processing by the drive recorder unit 10 and the mobile terminal 50 according to the embodiment.

As shown in FIG. 5, when a user such as a driver starts the DVR application 510 of the mobile terminal 50 and selects an image of the front of the vehicle 5 or the interior of the vehicle, the DVR application 510 notifies the user of the image selection. is transmitted to the main microcomputer 11 of the drive recorder unit 10 (step S11).

While holding the mobile terminal 50 in the terminal holder 59, the user can view the vehicle interior video captured by the inside camera 52 inch of the mobile terminal 50, the front video of the vehicle 5 captured by the outside camera 52ot, or the vehicle interior video. Both the front image and the front image can be selected.

Further, the DVR application 510 starts transmitting the video by the selected camera, for example, using the user's video selection as a trigger (step S12). The video selection that serves as a trigger is, for example, when the user presses a selection completion button.

These users operate the mobile terminal 50 using the above-mentioned operation switch 54s included in the mobile terminal 50. Alternatively, the operation by the user may be performed by gesture detection, voice instruction, or the like. Thereby, even in a situation where the user is unable to operate the operation switch 54s of the mobile terminal 50, such as when the user is driving the vehicle 5, it is possible to start transmitting images by the camera of the mobile terminal 50.

Gesture detection is a function in which a user performs a preset gesture toward the mobile terminal 50, and the mobile terminal 50 detects the gesture as an instruction input for instructing a specific operation. Further, the voice instruction is realized by the voice recognition function of the mobile terminal 50 that detects the user's voice instruction.

The main microcomputer 11 of the drive recorder unit 10 receives the video from the mobile terminal 50, performs predetermined processing on the received video, and causes the sub-microcomputer 12 to record the video in the overwrite folder of the recording device 15 (step S13).

At this time, the main microcomputer 11 may display the video that has undergone predetermined processing on the display 45 of the display unit 40 in response to instructions from the user.

Note that, in parallel with the above processing, a rearward image captured by the rear camera 32 is also appropriately recorded in the recording device 15 of the drive recorder unit 10. The main microcomputer 11 may display a rearward image subjected to predetermined processing on the display 45 of the display unit 40 in response to an instruction from the user. Further, the display unit 20 may display the rearward image captured by the rear camera 32 on the display device 25.

Here, the video received from the mobile terminal 50 and the rear video received from the rear camera 32 are switched from recording in overwrite mode to recording in storage mode in which they are not overwritten, under predetermined conditions.

One example is when a predetermined event recording request is received from the DVR application 510 of the mobile terminal 50 (step S14). When the main microcomputer 11 of the drive recorder unit 10 receives an event recording request from the mobile terminal 50, the sub microcomputer 12 switches the recording in the recording device 15 from the overwrite mode to the storage mode, and the storage folder of the recording device 15 is to record the video (step S15). A specific example of the event recording request will be described later.

Another example of switching from the overwrite mode to the storage mode is when the G sensor 16 detects an acceleration of a predetermined value or more. When the sub-microcomputer 12 receives the detection result from the G sensor 16 and determines that the detection result indicates an acceleration of a predetermined value or more (step S114), the main microcomputer 11 uses the sub-microcomputer 12 to detect the recording device. 15 is switched from the overwrite mode to the storage mode, and the video is recorded in the storage folder of the recording device 15 (step S115).

The case where the G sensor 16 detects an acceleration of a predetermined value or more can be translated into the case where the G sensor 16 detects an impact on the vehicle 5. If the G sensor 16 detects an impact on the vehicle 5, there is a possibility that the vehicle 5 has been involved in some kind of trouble, such as an accident or erratic driving. In that case, the main microcomputer 11 switches from the overwrite mode to the storage mode and causes the recording device 15 to record the video.

However, in the process of step S114 described above, the G sensor 16 may transmit the detection result to the sub-microcomputer 12 only when an acceleration equal to or greater than a predetermined value corresponding to an impact on the vehicle 5 is detected. In this case, when the sub microcomputer 12 receives the detection result from the G sensor 16, the main microcomputer 11 switches from the overwrite mode to the storage mode and records the video in the storage folder of the recording device 15.

In addition to the detection of acceleration exceeding a predetermined value by the G-sensor 16, if an event that is assumed to be an emergency situation is detected, such as the deployment of an airbag, the lighting of a hazard lamp, a sudden stop, or a sudden start, , the main microcomputer 11 may switch from the overwrite mode to the storage mode and cause the recording device 15 to record the video.

Events such as airbag deployment, hazard lamp lighting, sudden stop, and sudden start can be detected from various parts of the vehicle 5 by connecting the drive recorder unit 10 to the CAN (Controller Area Network) of the vehicle 5, for example. Can be detected.

(Example 2 of processing of drive recorder unit)
Next, an example of video recording processing using the navigation function by the mobile terminal 50 of the embodiment will be described with reference to FIG. FIG. 6 is a flow diagram illustrating an example of a procedure of video recording processing performed by the drive recorder unit 10 according to the embodiment using the navigation function of the mobile terminal 50.

As shown in FIG. 6, when a user such as a driver starts the DVR application 510 of the mobile terminal 50 and selects to start the navigation function, the DVR application 510 sends the navigation start notification from the user to the main drive recorder unit 10. It is transmitted to the microcomputer 11 (step S21).

Further, the DVR application 510 starts transmitting video by the selected camera, for example, when the user starts the navigation function as a trigger (step S22). The trigger for starting the navigation function is, for example, when the user presses a start button.

These users operate the mobile terminal 50 using the above-mentioned operation switch 54s included in the mobile terminal 50. Alternatively, the operation by the user may be performed by gesture detection, voice instruction, or the like.

Furthermore, the DVR application 510 starts transmitting the current time and the location information received by the GPS receiver 56c of the mobile terminal 50 (step S23). These time information and position information may be transmitted to the drive recorder unit 10 at longer intervals than the above-mentioned video, such as once every minute.

The main microcomputer 11 of the drive recorder unit 10 receives position information and video from the mobile terminal 50, performs predetermined processing on the received video, and the sub-microcomputer 12 links the current time information and position information. The recorded video is recorded on the recording device 15 (step S24).

At this time, the sub-microcomputer 12 causes the video, time information, and position information to be recorded in the storage folder of the recording device 15. This is because if the user instructs to record a video after adding time information and location information, it is considered that the user intends to save the video as some kind of record.

Note that the main microcomputer 11 may cause the display 45 of the display unit 40 to display an image that has been subjected to predetermined processing in response to an instruction from the user.

Further, in parallel with the above processing, the rear video imaged by the rear camera 32 is also appropriately recorded in the recording device 15 of the drive recorder unit 10 in a storage mode. The main microcomputer 11 may display a rearward image subjected to predetermined processing on the display 45 of the display unit 40 in response to an instruction from the user. Further, the display unit 20 may display the rearward image captured by the rear camera 32 on the display device 25.

When the user selects to end the navigation function from the DVR application 510, the DVR application 510 transmits a navigation end notification by the user to the main microcomputer 11 of the drive recorder unit 10 (step S25).

Upon receiving the navigation end notification from the DVR application 510, the main microcomputer 11 ends recording the video from the mobile terminal 50 (step S26). Alternatively, the main microcomputer 11 may end recording the video from the mobile terminal 50 upon arrival at the navigation destination.

Note that when a video with linked time information and location information is read from the recording device 15 and played back on the display unit 40 or on a dedicated viewer such as a personal computer owned by the user, the video and the route on the map can be It is possible to watch while linked.

Furthermore, the user can read out a video at a desired time from the time information attached to the video using the time stamp function. Furthermore, the user can read out video at a desired location by selecting a predetermined location on the map.

(Processing example 3 of drive recorder unit)
Next, an example of a setting process using the authentication function of the mobile terminal 50 of the embodiment will be described with reference to FIG. FIG. 7 is a flow diagram illustrating an example of a setting process procedure performed by the drive recorder unit 10 according to the embodiment using the authentication function of the mobile terminal 50.

As shown in FIG. 7, when a user such as a driver starts the DVR application 510 of the mobile terminal 50 and turns on the setting function of the display unit 20 (step S31), the DVR application 510 activates the setting function set by the user. An on notification is sent to the main microcomputer 11 of the drive recorder unit 10 (step S31).

Note that when starting the DVR application 510, the user enters, for example, at least one of a user ID that uniquely represents the user and an authentication code, and is authenticated by the DVR application 510 using an authentication function provided in the mobile terminal 50. shall be taken as a thing.

For authentication using the authentication function of the mobile terminal 50, in addition to inputting an authentication code, biometric authentication such as user's face authentication or fingerprint authentication may be used.

When the user receives a setting function ON notification for the first time, the main microcomputer 11 acquires from the display unit 20 items that can be set by the user regarding the display method on the display device 25, such as brightness, image quality, and camera angle. When these setting values are input by the user, the main microcomputer 11 causes the sub-microcomputer 12 to record these setting values in the recording device 15 in association with the user ID of the user.

Note that the recording device 15 may be able to store setting values corresponding to a plurality of users in association with individual user IDs.

When a setting function on notification is received from a predetermined user for the second time or later (steps S311, S312), the main microcomputer 11 causes the sub microcomputer 12 to record information on setting values according to the user ID of the user. It is read out from the device 15 and transferred to the display unit 20.

Based on the setting information received from the main microcomputer 11, the display unit 20 changes the settings of the display method on the display device 25, such as brightness, image quality, and camera angle, to setting values corresponding to the user ID of the user.

Further, the user may be able to change the settings of the display device 25 by directly operating the display device 25. When the user changes the setting value of the display method by operating the display device 25 (step S314), the display unit 20 transmits information on the changed setting value to the main microcomputer 11 and displays the information on the drive recorder. The information is recorded on the recording device 15 of the unit 10 (step S315).

In this way, each user can automatically set the display method of the display device 25 to a desired setting value for each user when logging in for the second time or later. Furthermore, if the setting value of the display device 25 is changed, the display device 25 will be set according to the changed setting value the next time it is used. This is useful for the user because it becomes unnecessary for the user to set the desired setting value each time the display device 25 is used.

Information regarding the setting values between the main microcomputer 11 and the display unit 20 as described above is sent from the main microcomputer 11 of the drive recorder unit 10 to the ECU 21 via the sub-microcomputer 12, the serializer 13m, and the deserializer 24 of the display unit 20. Or, it is transmitted from the ECU 21 to the main microcomputer 11 by following the opposite route.

Note that the settings changes using the authentication function of the mobile terminal 50 as described above are not applied to the image displayed on the display unit 40 or other displays such as a meter display or a head-up display. Good too.

Further, as other processing using the authentication function of the mobile terminal 50, processing for operating various parts of the vehicle 5, such as turning on the engine, may be possible. In other words, the engine may be turned on only when a predetermined user is authenticated. This can lead to suppression of theft of the vehicle 5. Such processing is possible, for example, by connecting the drive recorder unit 10 to the CAN of the vehicle 5.

(Comparative example)
In a drive recorder unit that captures and records images of the inside and outside of a vehicle using a camera or the like attached to the vehicle body, it is necessary to attach a plurality of cameras to the vehicle. However, the high cost of the camera increases the cost of the entire system. Depending on the type of vehicle, it may not be possible to install the desired number of cameras.

Further, in order to add time information and position information to the video recorded on the drive recorder unit, conventionally, the drive recorder unit must include a GPS receiver, which further increases the cost. Although it is possible to acquire this information from the navigation system mounted on the vehicle 5, this requires cooperation with the vehicle, such as connecting a drive recorder unit to the vehicle's CAN.

Furthermore, since a display device such as an electronic mirror does not normally include an input/output device, it has been necessary to use an IVI screen mounted on the vehicle as a user interface for operating the display device. Therefore, when the drive recorder unit and the display device are to be linked, coordination with the IVI is also required.

According to the drive recorder unit 10 of the embodiment, the WiFi-IC module receives images from the mobile terminal 50 that captures images of at least one of the front of the vehicle 5 and the inside of the vehicle to generate a vehicle interior image and a front image. 17 and an antenna 18.

Thereby, for example, the front camera provided on the vehicle body and the in-vehicle camera provided in the vehicle interior can be eliminated and replaced with the in-camera 52in and out-camera 52ot of the mobile terminal 50. Therefore, an inexpensive and high value-added drive recorder unit 10 that can capture and record images of the inside and outside of the vehicle 5 while reducing the number of cameras mounted on the vehicle 5 is obtained.

According to the drive recorder unit 10 of the embodiment, when the G sensor 16 detects an acceleration of a predetermined value or more, the recording device 15 switches the recording destination from the overwrite folder to the storage folder and records the front image, rear image, and vehicle. Record indoor images, etc. Thereby, when the vehicle 5 is involved in trouble, the video at that time can be recorded.

According to the drive recorder unit 10 of the embodiment, the WiFi-IC module 17 and the antenna 18 receive position information from the mobile terminal 50, and the recording device 15 records the position information in the front image, rear image, vehicle interior image, etc. Link these videos and record them in a storage folder.

In this way, by using the navigation function of the mobile terminal 50, it is possible to record video in association with position information without having to incorporate a GPS receiver into the drive recorder unit 10. Furthermore, cooperation with the vehicle 5 via CAN or the like is not required. Therefore, a drive recorder unit 10 that is inexpensive and has high added value can be obtained.

According to the drive recorder unit 10 of the embodiment, the WiFi-IC module 17 and the antenna 18 receive setting information regarding the display method of the display device 25 installed in the vehicle 5 from the mobile terminal 50, and the recording device 15 receives Record the settings information. As a result, even if the display unit 20 does not have an input/output device, it is possible to input display method setting values, etc. without using the IVI screen mounted on the vehicle 5 as a substitute, and it is inexpensive and has high added value. It is possible to realize a display unit 20 of.

According to the drive recorder unit 10 of the embodiment, the recording device 15 records setting information in association with a user, and when there is an access from a predetermined user, the serializer 13m records the setting information corresponding to the predetermined user. is transmitted to the display device 25. Thereby, the display method on the display device 25 can be automatically changed to the desired setting value of each user.

Although several embodiments of the present disclosure have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the gist of the invention. These embodiments and their modifications are within the scope and gist of the invention as well as within the scope of the invention described in the claims and its equivalents.

1 Video recording system 2 Main control block 3 Sub-control block 5 Vehicle 10 Drive recorder unit 11 Main microcomputer 12 Sub-microcomputer 15 Recording device 16 G sensor 17 WiFi-IC module 18 Antenna 20 Display unit 25 Display device 32 Rear camera 40 Display unit 45 Display 50 Mobile terminal 52in In-camera 52ot Out-camera 56c GPS receiver 57 WiFi-IC module 58 Antenna 59 Terminal holder 510 DVR application

Claims (12)

a first receiving unit that receives the first image from a first imaging device that images the rear of the vehicle and generates the first image;
a second receiving unit that receives the second video from a mobile terminal that generates a second video by imaging at least one of the front of the vehicle and the interior of the vehicle;
a recording unit that records the first video and the second video in an overwrite folder that is overwritten when the recorded video exceeds a predetermined capacity, or a storage folder in which the video is not overwritten;
Video recording device. The mobile terminal has a display screen and a back surface located on the opposite side from the display screen,
a second imaging device that is provided on the display screen side of the mobile terminal and captures an image of the side toward which the display screen is facing;
a third imaging device that is provided on the back side of the mobile terminal and captures an image of the side facing the back;
The video recording device according to claim 1. Further comprising an acceleration sensor that detects acceleration applied to the vehicle,
The recording section includes:
When the acceleration sensor detects the acceleration equal to or higher than a predetermined value, the recording destination is switched from the overwrite folder to the storage folder and the first video and the second video are recorded.
The video recording device according to claim 1 or 2. The mobile terminal has a receiver that receives position information from a satellite positioning system,
The second receiving section includes:
receiving the location information from the mobile terminal;
The recording section includes:
linking the position information to the second video and recording the second video in the storage folder;
The video recording device according to any one of claims 1 to 3. The recording section includes:
recording the second video in association with a route on a map according to the location information;
The video recording device according to claim 4. The recording section includes:
recording the second video so that when the second video is played back, the second video can be played back at the predetermined position by selecting a predetermined position on the map;
The video recording device according to claim 5. The receiver of the mobile terminal receives time information together with the position information from the satellite positioning system,
The recording unit includes:
recording the second video by linking the time information together with the position information to the second video;
The video recording device according to any one of claims 4 to 6. The recording section includes:
recording the second video so that the second video can be played back at the predetermined time by selecting a predetermined time when the second video is played;
The video recording device according to claim 7. The second receiving section includes:
receiving setting information regarding a display method of a display device installed in the vehicle from the mobile terminal;
The recording section includes:
recording the setting information;
The video recording device according to any one of claims 1 to 8. further comprising a transmitter that transmits the setting information to the display device,
The second receiving section includes:
receiving the setting information from the mobile terminal;
The recording section includes:
Recording the setting information in association with the user,
The transmitter includes:
When there is an access from a predetermined user, transmitting the setting information corresponding to the predetermined user to the display device;
The video recording device according to claim 9. The display device is a mirror-type display device modeled after a mirror for checking the rear of the vehicle;
The video recording device according to claim 9 or claim 10. to the computer,
receiving the first image from a first imaging device that images the rear of the vehicle and generates the first image;
receiving the second video from a mobile terminal that generates a second video by capturing at least one of the front of the vehicle and the inside of the vehicle;
recording the first video and the second video in an overwrite folder that is overwritten when the video exceeds a predetermined capacity, or a storage folder in which the video is not overwritten;
Video recording program.

Images