JP2023063223A - Vehicle recording control device and recording control method - Google Patents

Abstract

To appropriately perform recording of an event.SOLUTION: A control device 100 includes: an image data acquisition unit 111 configured to acquire video data captured with a camera 211 that captures the surroundings of a vehicle; an event detection unit 117 configured to detect an event based on an acceleration applied to the vehicle; an operation control unit 116 that accepts an event recording operation made by a user operation; and a recording control unit 122 configured to perform recording of video data acquired by the image data acquisition unit 111, and in a case where the operation control unit 116 has accepted the event recording operation, to generate, from the video data, event data dating back for a longer period than in a case where the event has been detected by the event detection unit and store the event data.SELECTED DRAWING: Figure 1

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 based on acceleration or based on user's operation. A technique for changing the event recording time of a drive recorder has also been proposed (see Patent Document 1, for example). The technique described in Patent Literature 1 lengthens the event recording time before event detection based on the running speed of the vehicle.

JP 2018-191207 A

The event data is, for example, video data for a period of 10 seconds before or after the event is detected or the operation is accepted. However, while event recording based on acceleration directly detects the occurrence of an event, event recording based on user operation causes a time lag from when the user notices an event that the user wants to save as event data to when the user performs an operation. Therefore, in the recorded event data, there may be cases where the event or the like is not properly recorded. User-operated event recording can be used to record accidents involving other vehicles to which the vehicle is not a party, and to record events other than accidents based on the user's interests. However, it is performed when the magnitude of the acceleration applied to the own vehicle is not the acceleration judged as an event, and the event recording based on the acceleration is not performed.

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

In order to solve the above-described problems and achieve the object, a recording control device for a vehicle according to the present disclosure includes a photographed data acquisition unit that acquires video data captured by a camera that captures the surroundings of a vehicle; an event detection unit that detects an event based on the acceleration obtained; an operation control unit that receives an event recording operation by a user operation; and a recording control unit that generates and saves event data from the video data when the operation of (1) is received, compared to when the event is detected by the event detection unit.

A 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 for accepting an event recording operation by the event detection step; and recording the video data acquired by the photographed data acquisition step. and a recording control step of generating and storing event data dating back a longer period than when is detected from the video data.

Advantageous Effects of Invention According to the present disclosure, it is possible to appropriately record an event.

FIG. 1 is a block diagram showing a configuration example of a vehicle recording apparatus having a control device according to the first embodiment. FIG. 2 is a diagram showing an example of an event data recording period. FIG. 3 is a flow chart 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 event data recording period. FIG. 5 is a flow chart showing an example of the flow of processing in the control device according to the second embodiment. FIG. 6 is a diagram showing another example of the event data recording period. FIG. 7 is a flow chart showing an example of the flow of processing in the control device according to the third embodiment. FIG. 8 is a diagram showing another example of the event data recording period. FIG. 9 is a flow chart showing an example of the flow of processing in the control device according to the fourth embodiment. FIG. 10 is a diagram showing another example of the event data recording period. FIG. 11 is a flow chart showing an example of the flow of processing in the control device according to the fifth embodiment.

Exemplary embodiments of a vehicle recording control device and a recording control method according to the present disclosure will be described below in detail with reference to the accompanying drawings. In addition, the present invention is not limited by the following embodiments.

[First embodiment]
<Vehicle recording device>
FIG. 1 is a block diagram showing a configuration example of a vehicle recording apparatus 10 having a vehicle recording control apparatus (hereinafter referred to as "control apparatus") 100 according to the first embodiment. The vehicle recording device 10 is a so-called drive recorder that records events occurring in the vehicle. When receiving an event recording operation, the vehicle recording device 10 saves event data for a longer period of time than when an event is detected.

The recording device for vehicle 10 may be a portable device that can be used in the vehicle, in addition to one mounted on the vehicle. In addition, the vehicle recording device 10 may be implemented by including the functions or configurations of a device installed in advance in the vehicle, a navigation device, or the like. Vehicle recording device 10 includes camera 211 , recording unit 212 , operation unit 213 , acceleration sensor 214 , GNSS (Global Navigation Satellite System) receiving unit 215 , display unit 216 , and control device 100 .

Camera 211 is a camera that captures the surroundings of the vehicle. Camera 211 may be a group of cameras. The camera 211 is arranged, for example, at a position in front of the interior of the vehicle where the image in front of the vehicle can be captured. In this embodiment, the camera 211 constantly captures images while the accessory power source 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, moving images composed of images of 27.5 frames per second.

The recording unit 212 is used for temporary storage of data in the recording device 10 for vehicle. The recording unit 212 is, for example, a RAM (Random Access Memory), a semiconductor memory device such as a flash memory, or a recording unit such as a memory card. Alternatively, it may be an external recording unit 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 receive various operations for the vehicle recording device 10 . The operation unit 213 is, for example, a touch panel arranged over the display screen of the display unit 216 . The operation unit 213 may be, for example, a microphone that picks up voice commands spoken by the user. For example, the operation unit 213 can accept an operation to manually store 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 erase 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 with respect to the vehicle. Acceleration sensor 214 outputs the detection result to event detection unit 117 of control device 100 . The acceleration sensor 214 is, for example, a sensor that detects acceleration in three axial directions. The three axial directions are the longitudinal direction, the lateral direction, and the vertical direction of the vehicle.

The GNSS receiver 215 is configured with a GNSS receiver or the like that receives GNSS signals from GNSS satellites. The GNSS reception 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 unit 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 arranged on the dashboard, instrument panel, center console, etc. in front of the driver of the vehicle. The display unit 216 displays images based on the image signal output from the display control unit 119 of the control device 100 . The display unit 216 displays images captured by the camera 211 or images 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). Controller 100 loads a stored program into memory and executes the instructions contained in the program. The control device 100 includes an internal memory (not shown), which is used for temporary storage of data in the control device 100 and the like. The control device 100 includes, as functions realized by its configuration and programs, a photographed data acquisition unit 111, a buffer memory 112, a photographed data processing unit 113, an operation control unit 116, an event detection unit 117, and position information acquisition. It has a section 118 , a display control section 119 , a reproduction control section 121 and a recording control section 122 .

The captured data acquisition unit 111 acquires peripheral image data captured by a camera 211 that captures images of the vehicle's surroundings. The captured data acquisition unit 111 outputs the acquired video data to the buffer memory 112 .

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

The image data processing unit 113 converts the video data temporarily stored in the buffer memory 112 into H.264, for example. 264 or MPEG-4 (Moving Picture Experts Group) or any other codec, and converted into any 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 a file of 60 seconds of video data temporarily stored in the buffer memory 112 in recording order. The captured data processing unit 113 outputs the generated video data to the recording control unit 122 . Further, the photographed data processing unit 113 outputs the generated video data to the display control unit 119 after decoding the image through the reproduction control unit 121 . 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 containing audio as well as video captured by the camera 211 .

The operation control unit 116 acquires operation information of operations received 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 erasing operation information indicating a video data erasing operation, and outputs a control signal. For example, the operation control unit 116 acquires end operation information indicating an operation for ending loop recording, and outputs a control signal. For example, the operation control unit 116 receives an event recording operation by a user operation. The event recording operation by the user operation received by the operation control unit 116 is, for example, an event recording operation instructed by operating a touch panel or the like, and 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, event detection unit 117 detects an event based on the detection result of 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.

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 by a known method based on the GNSS signals received by the GNSS reception unit 215 .

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

The reproduction control unit 121 performs control to reproduce the loop recorded video data or event data recorded in the recording unit 212 based on the reproduction 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 supplied compressed data.

The recording control unit 122 controls the recording unit 212 to record the video data filed by the captured data processing unit 113 . The recording control unit 122 records the video data filed by the photographed data processing unit 113 as overwritable video data in the recording unit 212 during a period in which the loop recording process is executed, such as when the accessory power source of the vehicle is ON. do. More specifically, the recording control unit 122 continues recording the video data generated by the captured data processing unit 113 in the recording unit 212 during the loop recording process. The oldest video data is overwritten with new video data and recorded.

When the event detection unit 117 detects an event, the recording control unit 122 stores video data corresponding to the event detection. The image data corresponding to event detection is image data for a predetermined period in the image data generated by the captured data processing unit 113 . The recording control unit 122 stores the video data corresponding to the detection of the event in the recording unit 212 as overwrite-prohibited event data. 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 event is detected (hereinafter referred to as "event detection time"). It is copied from the buffer memory 112 and saved as event data. For example, the recording control unit 122 generates and saves event data from the video data from the point in time after the first retroactive period P1 from the event detection point to the point in time after the first elapsed period P1' from the event detection point.

When the operation control unit 116 receives an event recording operation, the recording control unit 122 generates, from the video data, event data that goes back a longer period than when the event is detected by the event detection unit 117 . save. More specifically, the recording control unit 122 determines the operation acceptance point in time when the operation control unit 116 accepts an event recording operation by the user's manual operation or voice command operation (hereinafter referred to as "event operation acceptance point"). ) is longer than the first retroactive period P1 after the event is detected by the event detector 117 (P1<P2). For example, the recording control unit 122 records video data from the point in time after the second retroactive period P2 from the point of reception of the event operation to the point in time after the second elapsed period P2' (P1'=P2') from the point of reception of the event operation. Generate and save event data.

FIG. 2 is a diagram showing an example of an event data recording period. As for the loop recording video data, the video data generated by the captured data processing unit 113 is continuously recorded while the loop recording processing is executed. The period of the event data generated by the event detection is from the point of time preceding the event detection time by the first retroactive period P1 to the time of the event detection time after the event detection time by the first elapsed period P1'. The period of the event data generated by the event recording operation is from the second retroactive period P2 before the reception of the event operation to the second elapsed period P2' after the reception of the event operation. The period of event data generated by event recording operations is longer than the period of event data by event detection. For example, if the first retroactive period P1 is 10 seconds, the second retroactive period P2 is set from 15 seconds to 20 seconds. Also, the first elapsed period P1' and the second elapsed period P2' are set to 10 seconds or the like.

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

The control device 100 starts loop recording (step S101). More specifically, the captured data processing unit 113 starts loop recording. Also, the control device 100 starts event detection. The start of event detection is detection of acceleration by the acceleration sensor 214 at the acceleration threshold set by the event detection unit 117 and detection of reception of an event recording operation by the operation control unit 116 . The control device 100 proceeds to step S102.

The control device 100 determines whether an event is detected based on the detection result of the event detection unit 117 (step S102). If the acceleration detected by the event detection unit 117 is equal to or greater than the threshold, it is determined that an event has been detected (Yes in step S102), and the process proceeds to step S103. Alternatively, when the event detection unit 117 determines that the detected acceleration is not equal to or greater than the threshold, it determines that no event is detected (No in step S102), and proceeds to step S104.

If it is determined that an event has been detected (Yes in step S102), the recording control unit 122 generates and stores event data that is the first retrospective period P1 from the time of event detection (step S103). More specifically, the recording control unit 122 records, as event data, video data captured during a period from the time point before the first retroactive period P1 from the event detection time point to the time point after the event detection time point and the first elapsed period P1′. The unit 212 prohibits overwriting and saves. The control device 100 proceeds to step S106.

If it is not determined that an event has been detected (No in step S102), it is determined whether or not an event recording operation has been received (step S104). When the operation control unit 116 determines that an event recording operation by a user operation has been received (Yes in step S104), the process proceeds to step S105. If the operation control unit 116 does not determine that the event recording operation by the user operation has been received (No in step S104), the process proceeds to step S106.

If it is determined that the event recording operation has been received (Yes in step S104), the recording control unit 122 generates and stores event data that is traced back by the second retroactive period P2 from the time of the event recording operation (step S105). More specifically, the recording control unit 122 converts video data captured during the second retroactive period P2 from the time of reception of the event operation to the time after the second elapsed period P2' from the time of reception of the event operation into the event data. , the recording unit 212 prohibits overwriting and stores the data. The control device 100 proceeds to step S106.

The control device 100 determines whether or not to end the loop recording (step S106). For example, it is determined to end the loop recording when the power source or power of the vehicle is turned off, or when the operation unit 213 is operated. If the control device 100 determines to end the loop recording (Yes in step S106), it ends this process. If the control device 100 does not determine to end the loop recording (No in step S106), the control device 100 executes the process of step S102 again.

<effect>
As described above, in the present embodiment, when an event recording operation is accepted, the second retroactive period P2 from the event operation reception time is longer than the first retroactive period P1 from the event detection time when the event is detected. Store long-term event data. According to the present embodiment, when event recording is performed by user operation, event data can be generated and stored for a longer period than when event recording is performed by event detection. According to the present embodiment, if there is a time lag between when the user notices an event to be saved as event data and when the user performs an operation, it is possible that the event or the like is not properly recorded in the recorded event data. You can prevent it from happening. In this manner, according to the present embodiment, events can be properly recorded.

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

When an event is detected by the event detection unit 117, the recording control unit 122 sets the event detection time as the first starting point of event recording, and stores video data for a predetermined period before and after the first starting point as event data. When the operation control unit 116 accepts an event recording operation, the recording control unit 122 sets a second starting point for event recording a predetermined time T1 before the reception of the event operation, and records video data for a predetermined period before and after the second starting point. is saved as event data.

The recording period of event data will be described with reference to FIG. The period of event data generated by event detection is a predetermined period before and after the first starting point, with the event detection point as the first starting point. Specifically, it is the period from the point in time after the first retroactive period P1 from the first starting point to the point in time after the first elapsed period P1' from the first starting point. The period of the event data generated by the event recording operation is a predetermined period before and after the second starting point, with the predetermined time T1 before the reception of the event operation set as the second starting point. Specifically, it is the period from the point in time after the first retroactive period P1 from the second starting point to the point in time after the first elapsed period P1' from the second starting point. The period of event data from the event recording operation is the same length as the period of event data from the event detection. For example, T1 is set to 5 seconds, and the first retroactive period P1 and the first elapsed period P1' are set to 10 seconds.

Next, the flow of processing in the control device 100 will be described using FIG. Steps S111, S112, S114, and S116 are the same as steps S101, S102, S104, and S106 in the flowchart shown in FIG.

If it is determined that an event has been detected (Yes in step S112), the recording control unit 122 generates and stores event data starting from the event detection point (step S113). More specifically, the recording control unit 122 uses the time of event detection as the first starting point, and captures images during the period from the time after the first retroactive period P1 from the first starting point to the time after the first elapsed period P1′ from the first starting point. The recorded video data is stored in the recording unit 212 as event data while prohibiting overwriting. The control device 100 proceeds to step S116.

If it is determined that the event recording operation has been received (Yes in step S114), the recording control unit 122 generates and stores event data starting from T1 before the time of the event recording operation (step S115). More specifically, the recording control unit 122 sets the predetermined time T1 before the reception of the event operation as the second starting point, and the second starting point is the first retroactive period P1 before the second starting point. The recording unit 212 is caused to store video data shot during the time as event data while prohibiting overwriting. The control device 100 proceeds to step S116.

As described above, in this embodiment, when an event is detected, the time of event detection is set as the first starting point of event recording, and video data for a predetermined period before and after the first starting point is saved as event data. In this embodiment, when an event recording operation is accepted, a second starting point for event recording is set a predetermined time T1 before the event operation is received, and video data for a predetermined period before and after the second starting point is saved as event data. . According to this embodiment, when an event recording operation is accepted, the period of the event data can be shifted forward by a predetermined time T1 from the time when the event operation is accepted.

[Third Embodiment]
A vehicle recording apparatus 10 according to the present embodiment will be described with reference to FIGS. 6 and 7. FIG. FIG. 6 is a diagram showing another example of the event data recording period. FIG. 7 is a flow chart showing an example of the flow of processing in the control device according to the third embodiment. In this embodiment, processing in the recording control unit 122 is different from that in the first embodiment.

When the event detection unit 117 detects an event, the recording control unit 122 saves a file containing the event detection point as event data. In addition to the file containing the reception time point, the immediately preceding file is also saved as event data.

The recording period of event data will be described with reference to FIG. The duration of the event data generated by event detection is the duration of the file containing the event detection time. For example, if the period of video data generated as one file is 60 seconds, the period of event data generated by event detection is 60 seconds. The period of the event data generated by the event recording operation is the period of the file containing the event operation reception time point and the file immediately preceding the file containing the event operation reception time point. For example, if the period of video data generated as one file is 60 seconds, the period of event data by the event recording operation is 120 seconds.

Next, the flow of processing in the control device 100 will be described using FIG. Steps S121, S122, S124, and S126 are the same as steps S101, S102, S104, and S106 in the flowchart shown in FIG.

If it is determined that an event has been detected (Yes in step S122), the recording control unit 122 generates and saves a file including the event detection point as event data (step S123). More specifically, the recording control unit 122 causes the recording unit 212 to store a file including the event detection point as event data while prohibiting overwriting. The control device 100 proceeds to step S126.

If it is determined that an event recording operation has been accepted (Yes in step S124), the recording control unit 122 uses the file containing the event operation reception time point and the file immediately preceding the file containing the event operation reception time point as event data. Generate and save (step S125). More specifically, the recording control unit 122 causes the recording unit 212 to store, as event data, the file containing the event operation reception time point and the file immediately preceding the file containing the event operation reception time point, with overwriting prohibited. The control device 100 proceeds to step S126.

As described above, in this embodiment, when an event is detected, a file containing the event detection point is saved as event data. In this embodiment, when an event recording operation is accepted, in addition to the file containing the event operation acceptance point, the immediately preceding file is also saved as event data. According to this embodiment, when an event recording operation is accepted, the period of event data can be made longer than when an event is detected.

[Fourth embodiment]
A vehicle recording apparatus 10 according to the present embodiment will be described with reference to FIGS. 8 and 9. FIG. FIG. 8 is a diagram showing another example of the event data recording period. FIG. 9 is a flow chart showing an example of the flow of processing in the control device according to the fourth embodiment. In this embodiment, processing in the recording control unit 122 is different from that in the first embodiment.

If the operation control unit 116 receives an event recording operation after an acceleration of a predetermined value or more that the event detection unit 117 does not determine as an event is detected, the recording control unit 122 detects the event by the event detection unit 117 . Event data that goes back a longer period of time is generated from video data and stored. More specifically, when the recording control unit 122 receives an operation to record an event within a predetermined period after detection of an acceleration equal to or greater than a predetermined value that is not determined as an event, compared to when an event is detected, To generate and store event data dating back a long period of time from video data. The predetermined period is, for example, a period of approximately 30 seconds or more and 120 seconds or less.

Acceleration equal to or greater than a predetermined value that is not determined as an event is acceleration that is less than the acceleration detected as an event. The acceleration of a predetermined value or more that is not judged as an event is, for example, acceleration of 0.5 G or more and less than 1.0 G when detection of acceleration of 1.0 G or more is judged 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, and the acceleration is not enough to be judged as an event.

The recording period of event data will be described with reference to FIG. The period of event data generated by event detection is a predetermined period before and after the first starting point, with the event detection point as the first starting point. Specifically, it is the period from the point in time after the first retroactive period P1 from the first starting point to the point in time after the first elapsed period P1' from the first starting point.

As for the period of the event data generated by the event recording operation, if the event recording operation is received within a predetermined period after the event detection unit 117 detects an acceleration of a predetermined value or more that is not judged as an event, the event data is generated by the event operation. The reception time is set to the second starting point, and it is a predetermined period before and after the second starting point. Specifically, it is the period from the point in time after a second retroactive period P2 (P1<P2) from the second starting point to the point in time after the second elapsed period P2' from the second starting point. The period of event data from event recording operations is longer than the period of event data from event detection. For example, the second retroactive period P2 is set to 20 seconds, and the second elapsed period P2' is set to 10 seconds. It is preferable that the second retroactive period P2 is a period retroactive from the second starting point including the detection time of acceleration equal to or greater than a predetermined value that is not judged as an event.

Next, the flow of processing in the control device 100 will be described using FIG. Steps S131 through S133 and steps S135 through S137 are the same as steps S101 through S103 and steps S104 through S106 in the flowchart shown in FIG.

If it is not determined that an event has been detected (No in step S132), the control device 100 determines whether an acceleration of a predetermined value or more that is not an event has been detected based on the detection result of the event detection unit 117 (step S134). If the acceleration detected by the event detection unit 117 is equal to or greater than a predetermined value that is not determined as an event (Yes in step S134), the process proceeds to step S135. Alternatively, if the event detection unit 117 determines that the detected acceleration is not equal to or greater than the predetermined value that is not determined as an event (No in step S134), the process proceeds to step S137.

As described above, in the present embodiment, when an event recording operation is accepted after an acceleration equal to or greater than a predetermined value that is not judged as an event is detected, the time at which the event operation is accepted is delayed more than when an event is detected. Event data that goes back a long period as a starting point is generated from video data and stored. According to this embodiment, if an event recording operation is accepted after an acceleration equal to or greater than a predetermined value that is not judged as an event is detected, an event is detected during the period of the event data starting from the point at which the event operation is accepted. can be longer.

[Fifth embodiment]
A vehicle recording apparatus 10 according to the present embodiment will be described with reference to FIGS. 10 and 11. FIG. FIG. 10 is a diagram showing another example of the event data recording period. FIG. 11 is a flow chart showing an example of the flow of processing in the control device according to the fifth embodiment. In this embodiment, processing in the recording control unit 122 is different from that in the first embodiment.

When an event is detected by the event detection unit 117, the recording control unit 122 sets the time of the event detection as the first starting point of event recording, stores video data of a predetermined period before and after the first starting point as event data, and detects the event. If the operation control unit 116 receives an event recording operation after an acceleration of a predetermined value or more that is not determined as an event by the event detection unit 117 is detected, an acceleration of a predetermined value or more that is not determined as an event by the event detection unit 117 is detected. Using the point in time as the third starting point, event data is generated from video data for a predetermined period before and after the third starting point and stored.

The recording period of event data will be described with reference to FIG. The period of event data generated by event detection is a predetermined period before and after the first starting point, with the event detection point as the first starting point. Specifically, it is the period from the point in time after the first retroactive period P1 from the first starting point to the point in time after the first elapsed period P1' from the first starting point. As for the period of the event data generated by the event recording operation, if the event recording operation is received within a predetermined period after the event detection unit 117 detects an acceleration equal to or greater than a predetermined value that is not determined as an event, it is regarded as an event. A time point of detecting an acceleration equal to or greater than a predetermined value that is not judged is set as a third starting point, and is a predetermined period before and after the third starting point. Specifically, the period from the point in time after the third retroactive period P3 (P1<P3) from the third starting point to the point in time after the third elapsed period P3' (P1'<P3') from the third starting point. is. The period of event data from event recording operations is longer than the period of event data from event detection. The third retroactive period P3 and the third elapsed period P3' are set to 15 seconds or the like.

Next, the flow of processing in the control device 100 will be described with reference to FIG. 11 . The processing of steps S141 through S143, step S145, and step S147 are the same as steps S101 through S103 and steps S104 through S106 of the flowchart shown in FIG. The processing of step S144 is the same as that of step S134 of the flowchart shown in FIG.

If it is determined that an event recording operation has been received (Yes in step S145), the recording control unit 122 generates and stores event data starting from the point of time when acceleration equal to or greater than a predetermined value is detected, which is not an event (step S146). More specifically, by the recording control unit 122, from the point of time when the acceleration of a predetermined value or more that is not an event is detected before the third retroactive period P3, and the acceleration of a predetermined value or more that is not an event is detected after a third elapsed period P3′. The recording unit 212 is caused to store video data shot during the time as event data while prohibiting overwriting. The control device 100 proceeds to step S147.

As described above, in the present embodiment, when an event recording operation is received after an acceleration equal to or greater than a predetermined value that is not determined as an event is detected, the acceleration with the predetermined value that is not an event is detected as compared with the case where an event is detected. Event data that traces back a long period of time starting from the acceleration detection point is generated from the video data and stored. According to the present embodiment, when an operation to record an event is received after an acceleration of a predetermined value or more that is not judged as an event is detected, the period of the event data is extended starting from the point of time when the acceleration of a predetermined value or more that is not an event is detected. It can be longer than when an event is detected.

The vehicle recording apparatus 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 apparatus 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 the illustrated one, and all or part of it may be functionally or physically distributed or integrated in arbitrary units according to the processing load and usage conditions of each device. may

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

The components described above include those that can be easily assumed by those skilled in the art and those that are substantially the same. Furthermore, the above configurations can be combined as appropriate. Also, various omissions, substitutions, or modifications of 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 captured data acquisition unit 112 buffer memory 113 captured data processing unit 116 operation control unit 117 event detection unit 118 position information acquisition unit 119 display control unit 121 playback control unit 122 recording control unit 211 camera 212 recording unit 213 operation unit 214 acceleration sensor 215 GNSS receiver 216 display unit P1 first retroactive period P1' first elapsed period P2 second retroactive period P2' second elapsed period P3 third retroactive period P3' third elapsed period T1 predetermined time

Claims (7)

a captured data acquisition unit that acquires video data captured by a camera that captures the surroundings of the vehicle;
an event detection unit that detects an event based on the acceleration applied to the vehicle;
an operation control unit that receives an event recording operation by a user operation;
When the video data acquired by the photographed data acquisition unit is recorded and the operation control unit receives an event recording operation, a longer period of time is traced back than when the event is detected by the event detection unit. a recording control unit that generates and stores event data from the video data;
A recording control device for a vehicle. When the operation control unit receives an event recording operation after an acceleration of a predetermined value or more that is not judged as an event by the event detection unit is detected, the event is detected by the event detection unit. generating and storing event data dating back a longer period of time from the video data;
The vehicle recording control device according to claim 1 . The recording control unit determines that a second retroactive period from the operation acceptance time when the operation control unit accepts an event recording operation is the first retroactive period from the event detection time when the event is detected by the event detection unit. generating and storing event data having a period longer than the retroactive period from the video data;
3. The vehicle recording control device according to claim 1 or 2. When an event is detected by the event detection unit, the recording control unit sets the event detection time as a first starting point of event recording, and generates and stores event data from video data of a predetermined period before and after the first starting point. When the operation control unit receives an event recording operation, it sets a second starting point for event recording a predetermined time before the operation is received, and generates event data from video data of a predetermined period before and after the second starting point. to save,
3. The vehicle recording control device according to claim 1 or 2. The recording control unit converts the image data acquired by the photographed data acquisition unit into a file for each image for a certain period of time and records the data. When the operation control unit receives an event recording operation, the event data is generated from the file containing the operation reception time point and the immediately preceding file. to save,
3. The vehicle recording control device according to claim 1 or 2. When an event is detected by the event detection unit, the recording control unit stores, as event data, video data of a predetermined period before and after the first start point of event recording, with the event detection time as the first start point of the event recording. When the operation control unit receives an event recording operation after an acceleration of a predetermined value or more that is not determined as an event by the detection unit is detected, an acceleration of a predetermined value or more that is not determined as an event by the event detection unit is detected. Using the point in time as a third starting point, generating and storing event data from video data for a predetermined period before and after the third starting point;
3. The vehicle recording control device according to claim 2. a photographed data obtaining step of obtaining image data photographed by a camera that photographs the surroundings of the vehicle;
an event detection step of detecting an event based on the acceleration applied to the vehicle;
an operation control step for receiving an event recording operation by a user's operation;
When the video data acquired by the photographed data acquisition step is recorded, and the operation of event recording is accepted by the operation control step, a longer period of time than when an event is detected by the event detection step. a recording control step of generating and storing traced event data from the video data;
a recording control method executed by a vehicle recording control device.

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