JP2024017152A - Vehicle recording control device and recording control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To appropriately record an event.

SOLUTION: A control device 100 includes: a shooting data acquisition unit 111 that acquires video data shot by a camera 211 that shoots the surroundings of a vehicle; an event detection unit 117 that detects an event based on acceleration added to the vehicle; an operation control unit 116 that accepts an event recording operation through a user operation; and a recording control unit 122 that records the video data acquired by the shooting data acquisition unit 111 and in a case where the operation control unit 116 accepts the event recording operation, and in a case where acceleration more than or equal to a predetermined value not determined by the event detection unit 117 as an event is detected before the event recording operation is accepted, generates, from the video data, event data that tracks further than that in a case where acceleration more than or equal to the predetermined value not determined by the event detection unit 117 as an event is not detected before the event recording operation is accepted, and stores the event data.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2024,JPO&INPIT

Description

The present invention relates to a vehicle recording control device and a recording control method.

Event recording in a vehicle drive recorder may be based on detection of a collision due to acceleration or based on user operation. Furthermore, a technique for changing the event recording time of a drive recorder has also been proposed (for example, see Patent Document 1). The technique described in Patent Document 1 lengthens the event recording time before event detection based on the traveling speed of the vehicle.

Japanese Patent Application Publication No. 2018-191207

The event data is, for example, video data for a period of 10 seconds before and after the event detection time or operation reception time. However, depending on the situation in which the user performs the event recording operation, the user may not be able to quickly instruct the event recording, and the user may not be able to perform the event recording operation after the event that he or she wants to save as event data occurs. There will be a time lag until it is done. Therefore, in the recorded event data, events may not be recorded appropriately. Event recording by user operations can be used to record accidents involving other vehicles to which the own vehicle is not a party, or to record events other than accidents based on the user's interests. However, this is done when an event is not recorded based on the acceleration, rather than the magnitude of the acceleration applied to the host vehicle, which is determined as an event.

The present disclosure has been made in view of the above, and aims to appropriately record events.

In order to solve the above-mentioned problems and achieve the purpose, a recording control device for a vehicle according to the present disclosure includes a photographed data acquisition section that acquires video data photographed by a camera that photographs the surroundings of a vehicle, and a photographed data acquisition section that acquires video data photographed by a camera that photographs the surroundings of a vehicle. an event detection unit that detects an event based on the acceleration, an operation control unit that accepts an event recording operation by a user, and a video data acquisition unit that records the acquired video data, and the operation control unit records the event recording. If an acceleration of a predetermined value or higher that the event detection unit does not judge as an event is detected before the event recording operation is accepted, then before the event recording operation is accepted. , a recording control unit that generates and stores event data from the video data that goes back a longer period of time than when an acceleration of a predetermined value or more is not detected, which is not determined as an event by the event detection unit.

The recording control method according to the present disclosure includes a photographed data acquisition step of acquiring video data photographed by a camera that photographs the surroundings of a vehicle, an event detection step of detecting an event based on acceleration applied to the vehicle, and a user operation. an operation control step that accepts an event recording operation, and records the video data acquired by the photographed data acquisition step, and if the event recording operation is accepted by the operation control step, accepts the event recording operation; If an acceleration of a predetermined value or more that is not determined as an event is detected by the event detection step before the event is detected, an acceleration of the predetermined value or more that is not determined as an event by the event detection step is detected before the event recording operation is accepted. The vehicle recording control device executes a recording control step of generating and storing event data from the video data that goes back a longer period of time than when no acceleration is detected.

According to the present disclosure, it is possible to appropriately record events.

FIG. 1 is a block diagram showing a configuration example of a vehicle recording device having a control device according to the first embodiment. FIG. 2 is a diagram showing an example of a recording period of event data. FIG. 3 is a flowchart showing an example of the flow of processing in the control device according to the first embodiment. FIG. 4 is a diagram showing another example of the recording period of event data. FIG. 5 is a flowchart illustrating an example of the flow of processing in the control device according to the second embodiment.

Embodiments of a vehicle recording control device and a recording control method according to the present disclosure will be described in detail below with reference to the accompanying drawings. Note that the present invention is not limited to the following embodiments.

[First embodiment]
<Vehicle recording device>
FIG. 1 is a block diagram showing a configuration example of a vehicle recording device 10 having a vehicle recording control device (hereinafter referred to as "control device") 100 according to the first embodiment. The vehicle recording device 10 is a so-called drive recorder that records events that occur in a vehicle. The vehicle recording device 10 does not judge the event as an event before accepting the event recording operation.If an acceleration of a predetermined value or more is detected, the vehicle recording device 10 does not judge the event as an event before accepting the event recording operation. Event data is generated and stored from video data that goes back a longer period than when acceleration of a predetermined value or more is not detected.

In addition to being installed in a vehicle, the vehicle recording device 10 may be a portable device that can be used in a vehicle. Further, the vehicle recording device 10 may be realized by including the functions or configurations of a device or a navigation device installed in advance in the vehicle. The vehicle recording device 10 includes a camera 211 , a recording section 212 , an operation section 213 , an acceleration sensor 214 , a GNSS (Global Navigation Satellite System) receiving section 215 , a display section 216 , and a control device 100 .

The camera 211 is a camera that photographs the surroundings of the vehicle. The camera 211 may be a plurality of camera groups. The camera 211 is arranged, for example, at a position in front of the vehicle interior where it can photograph the front of the vehicle. In this embodiment, the camera 211 constantly takes images while the accessory power of the vehicle is on. The camera 211 outputs captured video data to the captured data acquisition unit 111 of the control device 100. The video data is, for example, a moving image composed of images at 27.5 frames per second.

The recording unit 212 is used for temporary storage of data in the vehicle recording device 10. The recording unit 212 is, for example, a RAM (Random Access Memory), a semiconductor memory device such as a flash memory, or a memory card. Alternatively, it may be an external recording unit that is wirelessly connected via a communication device (not shown). The recording unit 212 records loop recording video data or event data based on a control signal output from the recording control unit 122 of the control device 100.

The operation unit 213 can accept various operations on the vehicle recording device 10. The operation unit 213 is, for example, a touch panel placed over the display screen of the display unit 216. The operation unit 213 may be, for example, a microphone that picks up voice commands uttered by the user. For example, the operation unit 213 can accept an operation to manually save captured video data in the recording unit 212 as event data. For example, the operation unit 213 can accept an operation to reproduce loop recorded video data or event data recorded in the recording unit 212. For example, the operation unit 213 can accept an operation to delete event data recorded in the recording unit 212. For example, the operation unit 213 can accept an operation to end loop recording. The operation unit 213 outputs operation information to the operation control unit 116 of the control device 100.

Acceleration sensor 214 is a sensor that detects acceleration that occurs to the vehicle. Acceleration sensor 214 outputs the detection result to event detection section 117 of control device 100. The acceleration sensor 214 is a sensor that detects acceleration in three axial directions, for example. The three axial directions are the longitudinal direction, the horizontal direction, and the vertical direction of the vehicle.

The GNSS receiving unit 215 includes a GNSS receiver that receives GNSS signals from GNSS satellites. The GNSS receiving unit 215 outputs the received position information signal to the position information acquisition unit 118 of the control device 100.

The display unit 216 is, for example, a display device unique to the vehicle recording device 10 or a display device shared with other systems including a navigation system. The display section 216 may be formed integrally with the camera 211. The display unit 216 is a display including, for example, a liquid crystal display or an organic EL (Electro-Luminescence) display. In this embodiment, the display unit 216 is placed in front of the driver of the vehicle, such as on the dashboard, instrument panel, or center console. The display unit 216 displays video based on the video signal output from the display control unit 119 of the control device 100. The display unit 216 displays the video captured by the camera 211 or the video recorded in the recording unit 212.

<Vehicle recording control device>
The control device 100 is an arithmetic processing device (control device) including, for example, a CPU (Central Processing Unit). Control device 100 loads a stored program into memory and executes instructions included in the program. The control device 100 includes an internal memory (not shown), and the internal memory is used for temporary storage of data in the control device 100. The control device 100 includes a shooting data acquisition section 111, a buffer memory 112, a shooting data processing section 113, an operation control section 116, an event detection section 117, and a position information acquisition section as functions realized by its configuration and programs. 118 , a display control section 119 , a reproduction control section 121 , and a recording control section 122 .

The photographed data acquisition unit 111 acquires video data of the surroundings photographed by the camera 211 that photographs the surroundings of the vehicle. The photographed data acquisition unit 111 outputs the acquired video data to the buffer memory 112.

The buffer memory 112 is an internal memory included in the control device 100, and is a memory that temporarily records, while updating, video data for a certain period of time acquired by the photographic data acquisition unit 111.

The photographic data processing unit 113 converts the video data temporarily stored in the buffer memory 112 into, for example, H. The file format is encoded using an arbitrary codec such as H.264 or MPEG-4 (Moving Picture Experts Group), and is converted into an arbitrary file format such as MP4 format. The photographed data processing unit 113 generates video data as a file for a certain period of time from the video data temporarily stored in the buffer memory 112. As a specific example, the photographed data processing unit 113 generates 60 seconds of video data temporarily stored in the buffer memory 112 as a file in the recording order. The photographic data processing section 113 outputs the generated video data to the recording control section 122. Furthermore, the photographic data processing section 113 decodes the generated video data through the playback control section 121 and outputs it to the display control section 119 . The period of video data generated as a file is set to 60 seconds as an example, but is not limited to this. The video data referred to here may be data that includes audio in addition to video captured by the camera 211.

The operation control unit 116 acquires operation information of the operation accepted by the operation unit 213. For example, the operation control unit 116 acquires storage operation information indicating a manual storage operation of video data, playback operation information indicating a playback operation, or deletion operation information indicating a video data deletion operation, and outputs a control signal. For example, the operation control unit 116 obtains end operation information indicating an operation to end loop recording and outputs a control signal. For example, the operation control unit 116 accepts an event recording operation performed by a user. The event recording operation by the user that the operation control unit 116 accepts is, for example, an event recording operation instructed by operating a touch panel or the like, or an event recording operation instructed by inputting a voice command.

The event detection unit 117 detects an event based on the acceleration applied to the vehicle. More specifically, the event detection unit 117 detects an event based on the detection result of the acceleration sensor 214. The event detection unit 117 detects that an event has occurred when the acceleration information acquired by the event detection unit 117 from the acceleration sensor 214 is equal to or greater than a threshold value.

The position information acquisition unit 118 acquires position information indicating the current position of the vehicle. The position information acquisition unit 118 calculates the position information of the current position of the vehicle based on the GNSS signal received by the GNSS reception unit 215 using a known method.

The display control unit 119 controls the display of video data on the display unit 216. Display control section 119 outputs a video signal that causes display section 216 to output video data. More specifically, the display control unit 119 outputs a video signal to be displayed by reproducing the video captured by the camera 211 or the loop recorded video data or event data recorded in the recording unit 212.

The playback control unit 121 controls to play back the loop recording video data or event data recorded in the recording unit 212 based on the playback operation control signal output from the operation control unit 116. The reproduction control unit 121 includes a decoder (not shown), and reproduces various data by decoding the supplied compressed data.

The recording control unit 122 controls the recording unit 212 to record the video data that has been converted into a file by the photographic data processing unit 113. The recording control unit 122 records video data that has been converted into a file by the photographic data processing unit 113 into the recording unit 212 as overwritable video data during a period when loop recording processing is executed, such as when the accessory power source of the vehicle is ON. do. More specifically, the recording control unit 122 continues to record the video data generated by the photographic data processing unit 113 in the recording unit 212 during the period in which the loop recording process is executed, and when the capacity of the recording unit 212 becomes full, The oldest video data is overwritten and recorded with new video data.

When an event is detected by the event detection unit 117, the recording control unit 122 stores video data corresponding to the detection of the event. The video data corresponding to event detection is video data of a predetermined period of video data generated by the photographic data processing unit 113. The recording control unit 122 stores video data corresponding to the event detection in the recording unit 212 as event data whose overwriting is prohibited. When an event is detected by the event detection unit 117, the recording control unit 122 records video data for a predetermined period of about 10 seconds before and after the time when the event is detected (hereinafter referred to as “event detection time”). It is copied from the buffer memory 112 and saved as event data. The recording control unit 122 generates and stores event data from, for example, video data from a time point that has gone back by a first retrospective period P1 from the time of event detection to a time point after a first elapsed period P1' from the time of event detection.

The recording control unit 122 records the video data acquired by the imaging data acquisition unit 111, and when the operation control unit 116 receives an event recording operation, the recording control unit 122 performs an event recording operation by a user's manual operation or voice command operation. If an acceleration of a predetermined value or more that is not determined as an event by the event detection unit 117 is detected within a predetermined period before the operation reception time (hereinafter referred to as "event operation reception time") when the event is received, Event data that goes back a long period of time is generated from video data compared to the case where an acceleration of a predetermined value or more that is not judged as an event by the event detection unit 117 is not detected within a predetermined period before the event operation reception time. save. More specifically, the recording control unit 122 records the video data acquired by the photographic data acquisition unit 111, and within a predetermined period before the event operation reception time, the event detection unit 117 does not judge it as an event. If acceleration has been detected, the event detection unit 117 has detected a longer period of time than the case where acceleration of a predetermined value or higher, which is not judged as an event, has not been detected within a predetermined period before the event operation reception time. Generate and save event data from video data.

An acceleration of a predetermined value or more that is not determined as an event is an acceleration that is less than an acceleration that is detected as an event. An acceleration of a predetermined value or more that is not determined as an event is, for example, an acceleration of 0.5G or more and less than 1.0G when detecting an acceleration of 1.0G is determined to be an event. Specifically, it is a state in which an acceleration of a predetermined value or more is applied, such as a collision between the vehicle and an object or sudden braking, but the acceleration is less than the acceleration determined to be an event.

The predetermined period is, for example, from 30 seconds to 120 seconds.

If the operation control unit 116 detects an acceleration of a predetermined value or more that is not determined as an event within a predetermined period before the event operation is accepted, the recording control unit 122 records the acceleration for the predetermined period before the event operation is accepted. Event data that goes back a longer period of time is generated and stored from video data than when an acceleration of a predetermined value or more that is not determined as an event is not detected within a certain period of time. In other words, if an acceleration of a predetermined value or more that is not judged as an event is detected within a predetermined period before the event operation reception time, the recording control unit 122 performs the event operation. Event data is stored for a longer period than when acceleration of a predetermined value or more, which is not determined as an event, is not detected within a predetermined period before the reception time.

In the present embodiment, the recording control unit 122 performs event recording when an acceleration of a predetermined value or more that is not determined as an event by the event detection unit 117 is detected within a predetermined period before receiving an event recording operation. The second retroactive period P2 from the time of operation reception is event recording when an acceleration of a predetermined value or more that is not judged as an event by the event detection unit 117 is not detected within a predetermined period before the event recording operation is received. Event data having a period longer than the first retroactive period P1 from the time of operation acceptance is generated from the video data and stored. More specifically, if an acceleration of a predetermined value or more that is not determined as an event is detected within a predetermined period before the event operation reception time, the recording control unit 122 records the second retroactive period P2 from the event operation reception time. (P1<P2) is longer than the first lookback period P1 from the event detection time compared to the case where no acceleration of a predetermined value or more is detected as an event within a predetermined period before the event operation reception time. Save event data for a period. For example, the recording control unit 122 records video data from the time from the time when the event operation is accepted to the time after the second elapsed period P2' (P1'=P2') from the time when the event operation is accepted. Generate and save event data.

FIG. 2 is a diagram showing an example of a recording period of event data. As for the loop recording video data, the video data generated by the photographed data processing unit 113 is continuously recorded during the period when the loop recording process is executed. If an acceleration of a predetermined value or higher that is not judged as an event is not detected within a predetermined period before the event operation reception time, the period of event data generated by the event recording operation is the first retroactive period from the event operation reception time. This is between the time P1 and the time after the first elapsed period P1' from the event operation reception time. If an acceleration of a predetermined value or higher that is not judged as an event is detected within a predetermined period before the event operation reception time, the period of event data generated by the event recording operation is the second retroactive period from the event operation reception time. This is between the time P2 and the time after the second elapsed period P2' from the event operation reception time. If an acceleration of a predetermined value or higher that is not judged as an event is detected within a predetermined period before the event operation is accepted, the period of event data generated by the event recording operation is the predetermined period before the event operation is accepted. The period is longer than the period of event data obtained by an event recording operation when an acceleration of a predetermined value or higher that is not determined as an event is not detected within the period. For example, when the first retrospective period P1 is 10 seconds, the second retrospective period P2 is set to 15 seconds to 20 seconds, etc. Further, the first elapsed period P1' and the second elapsed period P2' are set to 10 seconds, etc.

<Information processing in vehicle recording control device>
Next, the flow of processing in the control device 100 will be explained using FIG. 3. While the vehicle recording device 10 is activated, the process of the flowchart shown in FIG. 3 is executed.

The control device 100 starts loop recording (step S201). More specifically, the photographic data processing unit 113 starts loop recording. Furthermore, the control device 100 starts event detection. The start of event detection means detection of acceleration by the acceleration sensor 214 at a set acceleration threshold by the event detection unit 117 and detection of acceptance of event recording operation by the operation control unit 116. The control device 100 proceeds to step S202.

The control device 100 determines whether an event has been detected based on the detection result by the event detection unit 117 (step S202). If the acceleration detected by the event detection unit 117 is equal to or greater than the threshold value, it is determined that an event has been detected (Yes in step S202), and the process proceeds to step S203. Alternatively, if the event detection unit 117 determines that the detected acceleration is not equal to or greater than the threshold value, it is determined that no event is detected (No in step S202), and the process proceeds to step S204.

If it is determined that an event has been detected (Yes in step S202), the recording control unit 122 generates and stores event data that is traced back by the first retrospective period P1 from the time of event detection (step S203). More specifically, the recording control unit 122 records, as event data, video data captured between a time point that is a first retroactive period P1 from the event detection point and a point that is after a first elapsed period P1' from the event detection point. 212 to prevent overwriting and save the data. The control device 100 proceeds to step S208.

If it is not determined that an event has been detected (No in step S202), it is determined whether an event recording operation has been accepted (step S204). If the operation control unit 116 determines that the event recording operation by the user has been accepted (Yes in step S204), the process advances to step S205. If the operation control unit 116 does not determine that the event recording operation by the user has been accepted (No in step S204), the process advances to step S208.

When determining that the event recording operation has been accepted (Yes in step S204), the control device 100 determines whether an acceleration of a predetermined value or more, which is not an event, has been detected within a predetermined period before accepting the event recording operation. Determination is made (step S205). More specifically, the control device 100 determines whether or not an acceleration of a predetermined value or more, which is not determined as an event, has been detected within a predetermined period before receiving the event recording operation. If the control device 100 determines that an acceleration of a predetermined value or more, which is not an event, has been detected within the predetermined period before receiving the event recording operation (Yes in step S205), the process proceeds to step S206. If the control device 100 does not determine that an acceleration greater than or equal to the predetermined value, which is not an event, has been detected within the predetermined period before receiving the event recording operation (No in step S205), the process proceeds to step S207.

If it is determined that an acceleration greater than or equal to the predetermined value, which is not an event, has been detected within the predetermined period before the event recording operation was received (Yes in step S205), the recording control unit 122 causes the second Event data that goes back a period of time P2 is generated and saved (step S206). More specifically, the recording control unit 122 records video data captured between a time point that is a second retrospective period P2 after the event operation reception time and a second elapsed period P2' after the event operation reception time as event data. This causes the recording unit 212 to store the data with overwriting prohibited. The control device 100 proceeds to step S208.

If it is not determined that an acceleration greater than or equal to a predetermined value that is not an event has been detected within the predetermined period before the event recording operation is received (No in step S205), the recording control unit 122 determines that the first trace back from the event recording operation time is detected. Event data dating back to period P1 is generated and saved (step S207). More specifically, the recording control unit 122 records video data captured between a time point that is a first retroactive period P1 from the time of event operation reception and a time after a first elapsed period P1' from the time of event operation reception as event data. This causes the recording unit 212 to store the data with overwriting prohibited. The control device 100 proceeds to step S208.

The control device 100 determines whether to end loop recording (step S208). For example, it is determined that the loop recording is to be terminated when the power source or motive power of the vehicle is turned off or when the operation unit 213 is operated. When the control device 100 determines to end the loop recording (Yes in step S208), the control device 100 ends this process. If it is not determined that the loop recording is to be ended (No in step S208), the control device 100 executes the process in step S202 again.

<Effect>
As described above, in this embodiment, when an event recording operation is accepted, if an acceleration of a predetermined value or higher that is not judged as an event is detected within a predetermined period before the event operation is accepted, the event operation is not performed. Event data that goes back a longer period of time can be generated and stored from video data than when acceleration of a predetermined value or more, which is not determined as an event, is not detected within a predetermined period before the reception time. According to the present embodiment, when a user is unable to promptly instruct event recording and there is a time lag between the occurrence of an event that the user wants to save as event data and the time when an operation is performed, the recorded event It is possible to suppress the occurrence of events and the like not being appropriately recorded in data. In this way, according to this embodiment, events can be appropriately recorded.

In the present embodiment, when an acceleration of a predetermined value or more that is not determined as an event is detected within a predetermined period before the event operation reception time, the second retroactive period P2 from the event operation reception time is the event operation reception time. Generate event data from the video data for a period longer than a first retroactive period P1 from the time of reception of an event recording operation when an acceleration of a predetermined value or more that is not determined as an event is not detected within a previous predetermined period. can be saved.

[Second embodiment]
The vehicle recording device 10 according to this embodiment will be described with reference to FIGS. 4 and 5. FIG. 4 is a diagram showing another example of the recording period of event data. FIG. 5 is a flowchart illustrating an example of the flow of processing in the control device according to the second embodiment. The basic configuration of the vehicle recording device 10 is the same as that of the vehicle recording device 10 of the first embodiment. In the following description, components similar to those of the vehicle recording device 10 are denoted by the same or corresponding symbols, and detailed description thereof will be omitted. In this embodiment, the processing in the recording control unit 122 is different from the first embodiment.

The recording control unit 122 accepts the event recording operation if an acceleration of a predetermined value or more that is not judged as an event by the event detection unit 117 is not detected within a predetermined period before accepting the event recording operation. The video data for a predetermined period before and after the second starting point is saved as event data, with the time point at which the event is recorded as a second starting point. If an acceleration greater than the predetermined value is detected, the event detection unit 117 does not judge it as an event.The point in time when an acceleration greater than the predetermined value is detected is set as a third starting point, and event data is collected from video data for a predetermined period before and after the third starting point. Generate and save.

The recording period of event data will be explained using FIG. 4. If an acceleration of a predetermined value or higher that is not judged as an event is not detected within a predetermined period before the event operation reception time, the event data period will be a predetermined period before and after the second starting point, with the event operation reception time as the second starting point. It is a period. Specifically, it is a period from the time when the first retrospective period P1 has passed from the second starting point to the time after the first elapsed period P1' has elapsed from the second starting point. If an acceleration of a predetermined value or more that is not judged as an event is detected within a predetermined period before the event operation reception time, the event data period starts from the time when the acceleration of the predetermined value or more that is not judged as an event is detected. The third starting point is a predetermined period before and after the third starting point. Specifically, it is the period from the time when the third retroactive period P3 goes back from the third starting point to the time after the third elapsed period P3' has elapsed from the third starting point. For example, the third retrospective period P3 and the third elapsed period P3' are set to 15 seconds to 20 seconds, etc. The second retrospective period P2 and the second elapsed period P2' are the same as in the first embodiment.

Next, the flow of processing in the control device 100 will be explained using FIG. 5. The processes in steps S211 to S215 and S218 are similar to steps S201 to S205 and S208 in the flowchart shown in FIG.

If it is determined that an acceleration of a predetermined value or more that is not an event has been detected within the predetermined period before the event recording operation is received (Yes in step S215), the recording control unit 122 determines that an Video images for a predetermined period before and after the third starting point, which is the point in time when the acceleration was detected, are saved as event data (step S216). More specifically, the recording control unit 122 generates event data from video data photographed between a point in time from the third starting point and a third retroactive period P3 and a point in time after the third elapsed period P3' from the third starting point. The data is stored in the recording unit 212. The control device 100 proceeds to step S218.

If it is not determined that an acceleration greater than or equal to the predetermined value, which is not an event, has been detected within the predetermined period before the event recording operation is received (No in step S215), the recording control unit 122 determines that the second Images for a predetermined period before and after the base point are saved as event data (step S217). More specifically, the recording control unit 122 records, as event data, video data photographed between the time when the second retroactive period P2 has passed back from the second base point and the time after the second elapsed period P2' from the second base point. 212. The control device 100 proceeds to step S218.

As described above, in this embodiment, if an acceleration of a predetermined value or more that is not determined as an event is detected within a predetermined period before the event operation reception time, the second starting point is the event operation reception time. The video data for a predetermined period before and after the second starting point is saved as event data, and if an acceleration of more than a predetermined value is detected within a predetermined period before the event operation is accepted, it will not be judged as an event. Event data can be generated and stored from video data for a predetermined period before and after the third starting point, with a point in time when an acceleration of a predetermined value or more is detected as a third starting point.

The vehicle recording device 10 according to the present disclosure may be implemented in various different forms other than the embodiments described above.

Each component of the illustrated vehicle recording device 10 is functionally conceptual, and does not necessarily have to be physically configured as illustrated. In other words, the specific form of each device is not limited to what is shown in the diagram, and all or part of it may be functionally or physically distributed or integrated into arbitrary units depending on the processing load and usage status of each device. You can.

The configuration of the vehicle recording device 10 is realized by, for example, a program loaded into a memory as software. The above embodiments have been described as functional blocks realized by cooperation of these hardware or software. That is, these functional blocks can be realized in various forms using only hardware, only software, or a combination thereof.

The above-mentioned components include those that can be easily imagined by those skilled in the art and that are substantially the same. Furthermore, the above configurations can be combined as appropriate. Furthermore, various omissions, substitutions, or changes in the configuration are possible without departing from the gist of the present invention.

10 Vehicle recording device 100 Control device (vehicle recording control device)
111 Shooting data acquisition section 112 Buffer memory 113 Shooting data processing section 116 Operation control section 117 Event detection section 118 Position information acquisition section 119 Display control section 121 Playback control section 122 Recording control section 211 Camera 212 Recording section 213 Operation section 214 Acceleration sensor 215 GNSS receiving section 216 Display section P1 First retrospective period P1' First elapsed period P2 Second retrospective period P2' Second elapsed period P3 Third retrospective period P3' Third elapsed period

Claims (5)

a photographic data acquisition unit that acquires video data photographed by a camera photographing the surroundings of the vehicle;
an event detection unit that detects an event based on acceleration applied to the vehicle;
an operation control unit that accepts an event recording operation by a user;
When the video data acquisition unit records the acquired video data and the operation control unit receives an event recording operation, the event detection unit detects a predetermined value that is not determined as an event before accepting the event recording operation. If an acceleration greater than the predetermined value is detected, the event detection section waits for a longer period of time before accepting the event recording operation than if no acceleration greater than the predetermined value is detected, which is not judged as an event. a recording control unit that generates and stores retroactive event data from the video data;
A vehicle recording control device comprising: The recording control unit determines a second retroactive period from the time when the event recording operation is accepted, when an acceleration of a predetermined value or more that is not determined as an event is detected by the event detection unit before accepting the event recording operation. is a period longer than a first retrospective period from the time when the event recording operation is accepted when an acceleration of a predetermined value or more that is not determined as an event by the event detection unit is not detected before the event recording operation is accepted. generating and storing event data from the video data;
The vehicle recording control device according to claim 1. If the event detection unit does not detect an acceleration of a predetermined value or more that is not determined as an event before accepting the event recording operation, the recording control unit determines the time point at which the event recording operation is accepted. As a second starting point, video data for a predetermined period before and after the second starting point is saved as event data, and before an event recording operation is accepted, an acceleration of a predetermined value or more that is not judged as an event by the event detection section is detected. If so, the event data is generated and stored from video data for a predetermined period before and after the third starting point, with a third starting point being a point in time when an acceleration of a predetermined value or more is detected that the event detection unit does not judge as an event. ,
The vehicle recording control device according to claim 1. When an event is detected by the event detection unit, the recording control unit generates and saves event data from the video data that is traced back by a first retrospective period from the time of event detection.
The vehicle recording control device according to claim 2 or 3. a photographic data acquisition step of acquiring video data photographed by a camera photographing the surroundings of the vehicle;
an event detection step of detecting an event based on acceleration applied to the vehicle;
an operation control step that accepts an event recording operation by a user;
When the video data acquired by the photographic data acquisition step is recorded and an event recording operation is accepted by the operation control step, the event is determined as an event by the event detection step before the event recording operation is accepted. If an acceleration of more than the predetermined value is detected, the event detection step will take a longer time than if no acceleration of more than the predetermined value is detected, which will not be judged as an event by the event detection step before accepting the event recording operation. a recording control step of generating and storing event data from the video data;
A recording control method executed by a vehicle recording control device.

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