JP2019106190A - Recording apparatus and program - Google Patents

Abstract

To provide a recording apparatus that writes over recorded video to record new video and is capable of inhibiting an image of the moment when an event like an accident occurred from being erased.SOLUTION: A drive recorder 1, having a continuous recording function for recording video captured at a vehicle by writing it over recorded video, includes an overwrite inhibiting function for inhibiting overwriting when a vehicle is in a predetermined stopped state. The overwrite inhibiting function inhibits overwriting by temporarily pausing the continuous recording.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a recording apparatus and the like for recording an image in a vehicle.

  BACKGROUND Conventionally, a recording device for recording an image in a vehicle is known. For example, a drive recorder is known as a recording device for capturing and recording an image of the interior of a vehicle or the periphery of the vehicle as an image of a vehicle (see, for example, Patent Document 1). For example, when a vehicle is involved in an accident or causes an accident, the video from the drive recorder plays a role in reproducing and viewing the recorded video to help to identify the cause of the accident.

  Conventional drive recorders mainly have an event recording function to record video for several tens of seconds before and after the occurrence of an event such as a predetermined impact occurrence, but recently, due to a decrease in price of recording media for recording video, etc. The number of drive recorders that have a constant recording function is increasing. For example, there is known a drive recorder that continuously records continuously while the vehicle is traveling, and such a drive recorder constantly records images of the moment when an event such as an accident occurs and also images other than that. Therefore, although there is no loss of recording, it requires a large capacity image storage memory. For example, it is difficult to replace a new memory card when the storage capacity of the memory is full, so continuous recording is performed until the capacity of the recording medium such as an SD card is almost full, and old when it is full The video is erased and the current video is overwritten and saved.

JP, 2013-235395, A

The drawback of continuous recording is that the video that is not necessary at the moment when an event such as an accident occurs does not need to be recorded, it is also recorded and overwritten onto the recorded video, so sometimes the image that needs to be saved also disappears There is a possibility of
For example, without breaking the engine at the time of an accident, the image at the time of the accident may be overwritten while the other party's rescue, injury of the person, talking with the other person, etc. If you forget it and start the engine with the engine starter the next day, the image on the previous day will be overwritten while idling.
The main purpose of the drive recorder is to record an accident, but if you encounter an accident and want to leave a recorded image, the record of the accident will be erased by overwriting unless you stop continuous recording or save the image separately. .

  Therefore, the present invention has been made in view of the problems with such conventional drive recorders, etc., and in the recording apparatus for recording the current image by overwriting the recorded image, the moment when an event such as an accident occurs. SUMMARY OF THE INVENTION It is an object of the present invention to provide a recording apparatus in which the possibility of the video of the image is erased is suppressed.

(1) A recording apparatus provided with a function of overwriting and recording an image captured in a vehicle on a recorded image may have a function of suppressing the overwriting when the vehicle is in a predetermined stop state.
In this way, it is possible to suppress the possibility that the image at the moment when an event such as an accident occurs is erased. For example, even if the power of the recording apparatus is not turned off, it is possible to suppress the possibility that the image at the moment when an event such as an accident occurs is erased.

For example, an image captured in a vehicle may be an image of an area around the vehicle inside or outside the vehicle. In particular, an image outside the vehicle may be an image around the traveling vehicle. The video may be acquired from, for example, an imaging unit such as a camera installed in a vehicle. In particular, it may be an image acquired from imaging means installed in the vehicle compartment.
The recording apparatus may be configured, for example, by control means such as a microcomputer.

Video recording may be performed, for example, on recording means, and in particular, on storage means for digitizing and recording. The storage means may be, for example, a storage medium such as a memory card.
The recorded video may be, for example, a video recorded by event recording, and a video to be overwritten may also be a video by event recording, but in particular, a recorded video by continuous video recording video continuously. In the configuration in which the video by the continuous video recording is overwritten and recorded, the remarkable effect is exerted. In particular, when the power is supplied to the recording apparatus, the most remarkable effect is achieved in the configuration in which the video recorded by continuous recording is recorded over the video recorded by continuous recording continuously.

As the predetermined stop state, for example, as described in (4) to be described later, it is preferable to stop at a predetermined time. In this way, when the stopped state exceeding the predetermined time continues, it is possible to suppress the possibility that the image at the moment when an event such as an accident occurs is erased.
As suppression of the overwrite, for example, (7) to (9) and (13) described later may be used. In particular, as suppression of overwriting, it is preferable to stop overwriting.

  Furthermore, when the vehicle is not in the predetermined stop state, it is preferable to have a state in which the suppression of the overwrite is not performed, and in particular, in the case where the vehicle is not in the predetermined stop state, the suppression of the overwrite is not performed. . In this way, it is possible to more reliably record the video at the moment when an event such as an accident occurs and to suppress the possibility that the video at the moment when an event such as an accident occurs may be erased. , Both can be balanced in a better balance.

(2) A continuous recording function is provided, the overwrite recording is performed on the recorded video of the continuous recording, and the function of suppressing the overwrite may be configured by suppressing the continuous recording.
In this way, it is possible to suppress the possibility that the video of the continuous video recording already recorded at the moment when an event such as an accident occurs may be erased by the continuous video recording.

  As continuous recording, it is preferable to record video continuously for a certain period of time, but in particular, it is preferable to record without having a causal relationship with the occurrence of an event, and in particular, regardless of the occurrence of an event You should do it. In particular, continuous recording should always be continuous recording, as a rule, when the power is supplied to the recording device. In this way, the recording at the moment when an event such as an accident occurs is always recorded by continuous recording. There is a remarkable effect that it is possible to suppress the possibility that the video of the constant recording will be erased.

  As continuous recording, for example, when the recording apparatus has an event recording function, it is preferable to record continuously for a time longer than the recording time by the event recording function. In this way, it is possible to suppress the overwriting of the recorded video by the continuous video recording, and to suppress the possibility that the video of the continuous video recording already recorded at the moment when an event such as an accident occurs is erased. In the event that the recording of the video due to is not recorded as an event due to an impact not considered as an event, it is possible to increase the possibility that the video of the event such as an accident can be confirmed by the continuous video recording. Even when the video is recorded, the remarkable effect of being able to confirm the situation before and after an event such as an accident over a longer time by the video of continuous recording recorded over a longer time than the video by the event recording Play.

(3) An event recording function may be provided, and the recording by the event recording function may be performed while the overwriting is suppressed.
In this way, even if, for example, an event such as an accident occurs while the overwriting is being suppressed, recording is performed by the event recording function, and an event such as an accident occurs more reliably. It is possible to suppress the possibility that the image of the moment is erased. In particular, when the vehicle is in the predetermined stopping state, the overwriting is suppressed, and therefore, when an accident occurs at the time of stopping, the possibility that the image of the moment such as the accident is erased can be suppressed more reliably. Since there is also an occurrence of an accident while stopping, it is desirable to have the event recording function record.

In particular, the video recorded by the event recording function can be more reliably prevented from being erased at the moment of an accident or the like if it is configured not to overwrite.
For example, a signal from a sensor, a switch, or the like that detects an event such as various accidents is acquired as a configuration in which recording by the event recording function can be performed while suppression of overwriting is performed. When indicating a state where it can be determined, it is preferable that the video for a predetermined time before and after the judgment is made be recorded as a video by event recording. For example, it is preferable that recording is performed for a time before and after only when the trigger is issued, triggered by a case where the sensor value exceeds a predetermined threshold or when a press of the switch is detected.

(4) It is good to have a state where it stopped for a predetermined time or more as the predetermined stop state.
In this way, it is possible to prevent the image in the stopped state from being continuously recorded over the recorded image recorded during traveling. Therefore, it is possible to suppress the possibility that the image at the moment when an event such as an accident occurs is erased by the image at a stop.

(5) It is desirable to determine whether the vehicle may have been in an accident, and to have the function of suppressing the overwriting when there is a possibility that the vehicle has been in an accident.
In this way, it is possible to more reliably suppress the possibility that the image at the moment when an event such as an accident occurs is erased.

  The determination as to whether the vehicle may have been in an accident, for example, when an impact equal to or greater than a predetermined threshold value is detected, failure diagnosis information such as ECU provided in the vehicle acquired from a diagnosis system such as OBD indicates a failure. In the case of information, when it is detected that the air bag or the like has been operated, it is preferable that the image is recognized and an image corresponding to an accident is detected. In addition, as a judgment as to whether the vehicle may have been in an accident, for example, the following (6) may be performed.

(6) The vehicle may be stopped within a predetermined time after detection of an impact as the predetermined stop state.
In this way, it is possible to more reliably suppress the possibility of deleting the image at the moment when the accident occurs. In the case of an accident, it has been found that, generally, after detecting an impact, an action is taken to stop within a predetermined time. In particular, it is preferable that the predetermined time be stopped within several tens of seconds after the detection of the impact.

(7) Stopping recording, changing the recording method so as to prolong the time until the overwriting, and reducing the capacity required for recording per hour by recording the video as suppression of the overwriting It is preferable to have a function to perform at least one of reducing the frame rate of video to be recorded and reducing the number of pixels of video to be recorded.
In this way, it is possible to reduce the possibility that the video at the moment when an event such as an accident included in the recorded video has occurred is erased by the overwriting.

In particular, it is preferable to save the memory used for video recording to continue recording, or to change the time until it is overwritten, in an assumed case.
As a configuration to reduce the frame rate, in particular, the video is recorded at several tens of frames per second if not suppressed, but if it is suppressed, as between several frames per second (for example, 1 fps), It is recommended to change the number of frames per second. The capacity required for recording per hour by the recording of the video, the number of pixels of the video to be recorded, etc. may be changed to such an extent that the digit of the number changes.

(8) As suppression of the overwriting, it is preferable that the information is not erased by the overwriting.
In this way, the video at the moment when the event such as an accident included in the recorded video occurs disappears without being overwritten, and the video at the moment when the event such as an accident occurs is erased more reliably. You can eliminate the fear.
For example, the following (9) may be used as a configuration to prevent erasure by overwriting.

(9) As the suppression of the overwriting, it is preferable that at least one of overwriting is prohibited, copying to a non-overwriting area, or moving to a non-overwriting area is performed.
In this way, it is possible to more reliably suppress the possibility that the image at the moment when an event such as an accident occurs is erased.

  As a configuration for prohibiting overwriting, for example, it is preferable to record the video to be recorded as one file in a predetermined time unit, and to assign the overwrite inhibiting attribute when completing the generation of the file as the attribute of the file. As a configuration for copying to an area that is not an overwrite area, for example, an overwriteable area and an overwrite prohibition area may be divided, and video data recorded in the overwritable area may be copied to the overwrite prohibition area. As a configuration for moving to an area that is not an overwrite area, for example, an overwriteable area and an overwrite prohibition area may be divided, and video data recorded in the overwritable area may be moved to the overwrite prohibition area. The overwritable area and the overwritable area may be, for example, different folders, different drives, or different file systems.

In particular, it is preferable that there is no possibility of overwriting in a folder to which moving or copying and storing.
For example, a continuous recording function may be provided, and at least one of copying to an area other than the overwrite area by continuous recording or moving to an area not the overwrite area by continuous recording may be performed as suppression of the overwriting.

(10) When the vehicle is in a predetermined traveling state, the suppression of the overwriting may be ended.
In this way, it is possible to more reliably record an image of a situation in which an event such as an accident that the vehicle is traveling is likely to occur, and the image at the moment when the event such as an accident occurs is erased. The fear can be suppressed.

In particular, when the vehicle is in a predetermined traveling state, it is preferable to restore the video recording state before the suppression of the overwriting is started.
The predetermined traveling state may be a state other than the predetermined stopping state, in particular, a state in which the vehicle has started traveling.

(11) The predetermined stop state is that the vibration state acquired from the vibration detection means is a predetermined state, that the speed information acquired from the vehicle is a predetermined state, and the speed based on the position information acquired from the positioning means The determination may be made based on at least one of the fact that the information is in a predetermined state and the speed information acquired from the GPS receiving means being in a predetermined state. For example, it is preferable that any given state can be taken in an actual stop state, and in particular, it can be taken in a state that can not be taken while traveling. For example, it is good to memorize the state actually measured in a stop state, and to judge whether it is in a predetermined state based on whether it matches with the memorized pattern. As the predetermined state of the vibration state acquired from the vibration detecting means, for example, the vibration characteristic at the time of stopping which is different from the vibration characteristic at the time of traveling is stored, and when it matches with the vibration characteristic at the time of stopping It is good to make a decision.
In particular, the determination may be made based on at least any one of these. In this way, it can be more reliably discriminated whether the vehicle is in the predetermined stopping state.

(12) It has a function to suppress the overwriting of the image in the predetermined range including the currently recorded image based on the operation from the user, and even if the power is shut off, the image of the predetermined range before the power shutoff It is good to have a function to suppress overwrite.
In this way, the power is supplied again even if the power of the recording apparatus is turned off due to an accident or the engine is turned off without performing an operation to suppress overwriting of the image of the accident at the time of the accident. When this happens, the video overwrite can be suppressed at that point in time before the power is turned off.

(13) It is preferable to have a function of suppressing the overwriting when at least one of rescue of the other party, injury of the person, and talking with the other party is detected.
In this way, it is possible to more reliably suppress the possibility that the image at the moment when an event such as an accident occurs is erased.

  In the case of detecting at least one of rescue of the other party, injury of the person, and talking with the other party, for example, rescue of the other person, injury of the person, talking with the other party, etc. It may be immediately after detecting at least any one of the following, but it is good if after a predetermined time has elapsed, for example, rescue of the other party, injury of the person, at least one of talking with the other party, etc. After detecting these, it is good to stop after detecting these. In this way, although the rescue and the discussion are recorded without being suppressed, since these times are relatively short, the situation where the recorded video at the time of the accident is overwritten and erased Can be suppressed. The determination of being in a state of talking with the person's injury, the other person, etc. is provided with a function of recognizing a person in the image captured by the vehicle by image recognition processing such as face recognition, for example, It may be performed based on whether or not the present time is a predetermined pattern stored in advance. For example, when two or more persons are recognized beyond a predetermined time, or when the same person is repeatedly recognized or not within a predetermined time, it is preferable to suppress the overwriting.

(14) The engine starter may be configured to have a function of suppressing the overwriting when it is detected that the engine has been started.
In this way, it is possible to reduce the possibility that the image at the moment when an event such as an accident occurs is erased by the image while starting the engine with the engine starter and idling.

  For example, the following (15) to (23) may be made especially for the purpose of storing and storing the recording data more surely at the time of the accident and before and after the accident. These are focused on stopping the vehicle immediately, particularly when the vehicle causes an accident or when witnessing an accident and performing rescue. For example, it is possible to solve the problem that the recorded video disappears in the case of the continuous recording, and the problem that the event recording is not stored and stored when, for example, the sensor does not detect or does not operate the button.

(15) It may be determined whether or not it is immediately after the accident, and when it is judged that it is immediately after the accident, it is preferable to have a function to suppress the overwriting.
In this way, it is possible to more reliably store and save the video at the time of the accident and before and after that. A more specific configuration may be, for example, (17) (18).

(16) After the accident, it may be determined whether or not the car has been moved to a safe place, and after the accident it is preferable to have a function to suppress the overwriting when it is determined that the car is moved to a safe place.
In this way, it is possible to more reliably store and save the video at the time of the accident and before and after that. As a more specific configuration, for example, (19) may be used. In this case, the suppression of the overwriting may be performed particularly on the image including the time before and after the accident. It is preferable to store area information and the like of the safe place in advance and to determine whether or not the place is a safe place based on whether or not the detected current position is included in the stored area range. Alternatively, area information or the like of an unsafe place may be stored in advance, and determination may be made based on whether or not the current position is out of this area. In particular, it may be an area of unsafe place on the road.

(17) A continuous recording function, including the fact that the vehicle is in the stopped state as the predetermined stopping state, and when the vehicle is in the predetermined stopping state, the recorded video of the continuous recording for a predetermined time before and after that The configuration may be configured to suppress the overwriting.
When an accident or the like occurs like the point of interest mentioned above, it stops immediately after that. Therefore, if overwriting is suppressed by storing video before and after stopping in a dedicated folder etc., there is a high possibility that video recording such as an accident is recorded, so the video recording data before and after the accident is stored more reliably be able to.

  Although it can be said in (1) to (14) mentioned above, particularly in (15) and later, as suppression of overwriting, for example, recorded data (imaged data) of recorded video or a recorded data file including it is specified in a specific folder , Move to or copy to a specific storage area, or a specific storage medium. And it is good also as movement or copy to the folder etc. of overwrite prohibition as suppression of overwrite, for example, it is practical to carry out exclusive folder etc. with overwrite permission since stop is frequent when traveling in the town etc. . Since the amount of data in the dedicated folder etc. can be made smaller than the amount of data in continuous recording by suppressing the overwriting in the method of moving or copying to the dedicated folder etc. with the overwrite permission as described above, If the same storage capacity as recording is used, the probability of being erased is low and it is useful.

  For example, when there is an event recording function and a continuous recording function, the predetermined time before and after may be longer than the recording time by the event recording and shorter than the recording time by the continuous recording function. For example, it is preferable to suppress overwriting in a range starting from several tens of seconds before stopping to several minutes before and ending from several tens of seconds to several minutes after stopping. In particular, it is better to lengthen the overwrite suppression time before the stop than after the stop, and it is preferably about 1 to 3 minutes before and several tens of seconds to 1 minute after. If it is too long, the memory capacity will be large and the possibility of being erased by overwriting will be high, but in this way it is not necessary to increase the memory capacity, and the possibility of being erased is also low. The contents of the accident can be recorded reliably, including the process of encountering the accident and the process after the accident.

  The continuous recording may be configured to store the video of the continuous recording in file units at predetermined time intervals. In this configuration, the recorded video is created in file units at predetermined time intervals and will be overwritten. In particular, in the case of the configuration of (17), the predetermined time may be about one minute. As described above, when the file unit is, for example, about one minute, it can be easily processed as the file at the time of stopping, the file up to one to two before, and the file one after.

(18) A function having a continuous recording function, recording continuous recordings in another storage area according to whether or not the predetermined stop state is in order to suppress the overwriting, and performing the overwrite recording in each storage area It is good to have
In this way, even if the vehicle is stopped for a long time, the video in the non-stopped state (for example, the video during traveling) is overwritten with the video in the predetermined stopped state. It is possible to suppress the It is better to overwrite the continuous recording when the vehicle is in the predetermined stop state from the limitation of the memory capacity.

Another storage area may be a separately managed storage area, for example, a different folder or a different drive.
As “in accordance with whether or not the vehicle is in the predetermined stopping state”, “in the case of the predetermined stopping state and in the case of not being in the predetermined stopping state” may be set. As another storage area, for example, a storage area for a predetermined stop state and a storage area for a non-predetermined stop state may be provided. As "in accordance with whether or not the vehicle is in the predetermined stopping state", "it may be immediately after changing whether or not the vehicle is in the predetermined stopping state", but "it is changed whether or not the predetermined vehicle stopping state is You don't have to say "when". In particular, in the case where the continuous recording function is configured to generate a file in file units every predetermined time (for example, one minute), for example, when changing from a non-predetermined stop state to a predetermined stop state Alternatively, processing may be performed to switch the storage area of the storage destination of the file immediately when it changes from a predetermined stop state to a state other than the predetermined stop state. Until the end of recording of the recording unit time (for example, the above-mentioned one minute), the recording area of the file storage destination is not switched, and when the recording of the file unit in the recording is completed, It is preferable to determine whether or not there is a predetermined stop state by the determination, and to determine the storage area of the storage destination of the file.

  For example, continuous recording may be divided into running and stopped, and recording of continuous recording may be recorded in another folder while running and stopped, and overwritten and stored in each folder. In this way, even if the engine is not stopped for a long time without stopping the engine, it is possible to prevent the recording during driving from being erased by overwriting while the vehicle is stopped, and it is also possible to record an accident while stopping. It is better to overwrite the continuous recording while stopped from the limitation of memory capacity.

(19) A continuous recording function is provided, and as the predetermined stopping state, a state in which the vehicle is stopped and the stopping is continued for a predetermined time, and the time when the stopping is started when the vehicle is in the predetermined stopping state It is preferable that the overwrite is suppressed for the recorded video of the continuous recording for the predetermined time before and after.
In this way, it is possible to prevent the overwriting from being suppressed each time the vehicle is stopped, and it is possible to reduce the probability of erasing even when the video recording capacity is small, as in the case of a small memory capacity.

  Moreover, it is good to set it as the time which exceeds the stop time in a general signal waiting degree, as time which "stops for a predetermined time continues" of "the state where a vehicle stopped and the stop continued for a predetermined time". It is preferable not to suppress the overwriting in the stopping time at the general signal waiting time, but to suppress the overwriting when the vehicle stops for a relatively long time. In this way, it is possible to prevent the suppression of overwrite each time a signal is waited, reduce the frequency of suppression of overwrite, and reduce the probability of erasing even with a small memory capacity.

  In particular, it may be about 3 minutes to 5 minutes. In this way, it is possible to prevent the possibility that the record at the time of the accident may be overwritten by continuous recording while the engine is stopped without stopping the engine. Moreover, since it is considered that there is no accident or not a serious accident if normal driving is resumed in a shorter time than this, overwrite suppression works excessively, and the storage area is filled with the video in which the overwrite is suppressed. It is possible to prevent the problem and to reduce the possibility of pressing the recordable area of continuous recording. In particular, it is more preferable to combine the configuration of (26) described later.

  In addition, when the vehicle stops, but the stop does not continue for a predetermined time, the suppression of the overwrite on the recorded video of the continuous recording for a predetermined time before and after the time when the stop is started is not performed. Good. Moreover, it is good to set it as the structure of (19) which is not equipped with the structure of (17).

(20) When the apparatus is provided with a continuous recording function and the power supply of the apparatus is shut off, immediately before the shutoff of the power supply, when the vehicle stop is started before the power shutoff, or the predetermined stop condition before the power shutoff It is preferable to have a function of suppressing the overwriting of the recorded video of the continuous recording including at least any one of the time points when it has become.

It is important to take measures to reduce the possibility of erasing the recording at the time of an accident etc. by overwriting the continuous recording by stopping for a long time without stopping the engine at the time of an accident etc., but actually the engine is stopped even at the time of an accident It seems that there are more cases to stop / park. In this case, the event recording may be performed before the engine is stopped, but in the case of a configuration without the event recording function or when the event recording is not determined because it is not determined as an event, etc., an accident There is a possibility that the video in the event of continuous recording may be erased by overwriting in the running after processing, but in this way, such a situation can be prevented, and the video in the event of an accident etc. is recorded more reliably. Can be In particular, when the power supply of the apparatus is supplied from a vehicle and the power supply from the vehicle is shut off when the engine of the vehicle is stopped, the recording before the engine is stopped is stored each time. Become. In particular, for suppression of overwriting, for example, a dedicated folder may be provided and overwrite recording may be performed. Further, as “including the time point of 1”, for example, it is preferable to set a predetermined time before and after the time point of 1.
As a configuration example of the above (20), for example, when the power supply of the present recording apparatus is shut off after the vehicle has stopped, it is preferable to perform the overwrite suppression processing on the recorded video of continuous recording for a predetermined time before and after the stop.

(21) A backup power supply capable of supplying power when the power is shut off may be provided, and when the power is shut off, the overwrite may be suppressed by the backup power supply.
In this way, overwrite can be suppressed more reliably. In the case where the backup power supply is not provided, or the backup power supply is provided but the capacity of the backup power supply is decreased, it is preferable to suppress the overwriting after the power is turned on. .

  In particular, for example, the process of (20) may be performed in this manner. For example, if there is a backup power supply, the backup power supply performs overwrite suppression processing and then the power supply is turned off, and if the backup power supply is not installed, or if the capacity of the backup power supply is low, the next power supply It is better to perform the overwrite suppression process after the startup is started. This is good because it needs to be processed after the power is shut off.

(22) A positioning function may be provided, and the suppression of overwriting may include a function of not suppressing the overwriting when the position where positioning has been performed is a preset place.
For example, there are many cases where it is unnecessary to record an accident at a place where you usually park well, such as a parking lot at home or at work, so for example, a place where such recording is unnecessary is set in advance. You should not make it. As a result, it is possible to reduce the probability that a necessary image, such as a record at the time of an accident, will disappear due to overwriting. The setting of the place where the overwrite suppression process is not performed may be, for example, storing and setting the position when an instruction such as a button operation is input at the place. In particular, for example, the configuration (22) may be provided in the configuration (20).

(23) A continuous recording function is provided, and as the predetermined stopping state, the vehicle travels after the vehicle has stopped and is stopped again, and the time for the restart is equal to or longer than a predetermined time. When the state is reached, the overwriting may be suppressed for the video of continuous recording before and after the stop and the video of continuous recording before and after the restop.
In this way, when the car is moved to a safe place after the accident, the picture at the time of the accident and the picture when moved to the safe place can be stored and stored more reliably.

More specifically, for example, in continuous recording, when the vehicle is stopped, recording data of continuous recording for a predetermined time before or after that time or a recording data file including it is temporarily stored, and then the vehicle travels and is stopped again. If the stopping time is more than the predetermined time, the recording data of the predetermined time before or after the re-stop or the recording data file including the same, the recording data temporarily stored or the recording data file including the specific data, the specific folder The storage area may be moved or copied and stored in any of the specific storage media. The temporary storage may be erased when the traveling is resumed at a predetermined speed or more.
Not only may processing be performed until a stop before the stop for a predetermined time or more, the same overwrite suppression may be performed up to the second and third before the stop.

(24) A continuous recording function is provided, and as the predetermined stopping state, a state in which the time for stopping the vehicle has become equal to or longer than a predetermined time is stored, and the time is stored each time the vehicle is stopped. Then, it is preferable to suppress the overwriting of the video of the stored continuous recording of the predetermined time before and after the time of the stop and the time of the stored stop up to a predetermined time before that time.
In this way, for example, even if the vehicle is moved to a safe place after the accident, even if the vehicle is stopped several times, the image at the time of the accident and the image when the vehicle is stopped a plurality of times are more reliable Can be stored in memory. In addition, since the time is stored, the required temporary storage capacity is smaller than in the configuration in which the video data is temporarily stored for each stop, and the cost increase can be suppressed easily.

The predetermined number may be the number of times or time. For example, it may be four times, for example, five minutes. It is preferable to set both conditions of time and number of times. For example, it may be 4 times and 5 minutes.
The time may be an end time of the stop or a time during stop, but may be a start time of the stop. It is preferable to store the stop time of each time, and when there is a stop continuing for a predetermined time or more, the recordings before and after the start of the stop at the time of the stop before the predetermined time may be stored.
More specifically, for example, when the vehicle stops, the time at which the stop is started is stored each time the vehicle stops, and when the stop continues for a predetermined time or more, the start time of the stop and the start time of the stop up to a predetermined time before that It is preferable to move or copy continuous recording data in which recordings before and after a predetermined time are stored, or a continuous recording data file including it, to any one of a specific folder, a specific storage area, and a specific storage medium.

(25) A continuous recording function is provided, and when it is determined that the predetermined stop state is determined, the plurality of different time points are determined as the target of suppression of overwriting, and recording of a time including the determined time and before and after that It is preferable to suppress the overwriting for the video.
In this way, the required temporary storage capacity is smaller and the increase in cost can be easily suppressed, as compared with the configuration in which each time point and the video data before and after that time are temporarily stored in the RAM etc. The image at the time of the accident and the image associated with it can be stored and stored more reliably.

(26) The configuration is based on the condition that the stopping time is equal to or more than the predetermined time in the determination as to whether the vehicle is in the predetermined stopping state, the vehicle is stopped, and supply from the vehicle is continued before stopping for the predetermined time or more. When the power is shut off, it may be considered that the stopping has continued for a predetermined time or more.
If the engine is stopped immediately after the vehicle stops, continuous recording does not proceed any further and it will not be erased by overwriting while the vehicle is stopped, but starting the engine again to start traveling will start continuous recording, so overwrite It is better to save as there is a possibility that it will be erased.
For example, in the configurations of (18) to (25), when the vehicle is stopped and the power supply from the vehicle is shut off before the stop continues for a predetermined time or more, the stop processing is regarded as continued for a predetermined time or more and stored It is good to be configured.

  In addition, according to (26), it is possible to facilitate the configuration in which the stop time does not include the time during which the engine is stopped. In such a configuration, it is not necessary to perform processing for obtaining the stopping time at the end of the power supply or at the start of the power supply. For example, in order to determine the stopping time, it is not necessary to calculate the stopping time from the last recording time before stopping the engine and the time when the engine is started, for example, at the time of power supply.

(27) When the power supply from the vehicle is shut off, it is determined that the vehicle is in the predetermined stop state, and if the overwriting is to be suppressed, the backup power supply is used or the power is turned on next. It is good to process when the circuit starts.
If the recording device (for example, drive recorder) has a battery, the storage processing is performed by the battery and then the recording device (for example, drive recorder) may be stopped. It is better to process the next time the power is turned on.
For example, when the power supply from the car is shut off as in (27), it is considered that the stopping has continued for a predetermined time or more, and for example, in any of the configurations from (18) to (27) As a result of the determination, it is particularly preferable that the configuration of (23) is provided in the configuration in which the overwrite is suppressed.

(28) The stop may be provided with a function of assuming that the stop is continued until the vehicle travels at a predetermined speed or more after the stop of the vehicle.
In this way, when the speed is less than the predetermined speed, it can be regarded as a stop and the configuration described above can be realized. In particular, the predetermined speed may be, for example, a speed of several kilometers per hour corresponding to traffic congestion. For example, as in the case of a traffic jam, it is possible to prevent a large number of overwrites from being suppressed when repeating to stop slightly after going a little. The predetermined speed may be user settable.

(29) The suppression of the overwriting is performed by storing the video in any one of a predetermined folder, a predetermined storage area, and a predetermined storage medium, and the storage is previously set to overwrite prohibition or overwrite permission, or It is preferable that the setting change is made possible, and in the case of the overwrite permission, the probability that the memory is erased by the overwriting is lower than the overwriting of the continuous recording.
If it is clear in advance whether or not overwrite is permitted or not, it is preferable to set one from the beginning (for example, at the time of shipment) and to be able to change the setting if it is preferable to set it according to the user's usage. Even in the case of the overwrite permission, it is possible to more surely record an image at the time of an accident or the like by making the probability that the storage is erased by the overwrite lower than the overwrite of the continuous recording.
The video may be a recorded video.

(30) A configuration including a constant recording function, and storing the predetermined folder, the predetermined storage area or the predetermined storage medium in a different folder, storage area or storage medium from the constant recording and the event recording It is good to do.
In this way, it is possible to reduce the effects of constant recording and event recording. In addition, it is possible to reduce the impact on constant recording and event recording. And, search becomes easy.

(31) A continuous recording function and an event recording function may be provided, and the continuous recording and the event recording may be continuously performed even while the vehicle is stopped.
In this way, for example, it becomes a complement when it disappears due to a drop or overwrite. In addition, when used in combination with continuous recording and event recording, the reliability of recording and storage at the time of an accident etc. is further enhanced.
The configurations described in the respective items (1) to (31) described above can be basically combined arbitrarily, and it is preferable to combine a plurality of terms within a range in which no contradiction occurs. When combining, it is possible to combine each of the items by exerting the ordinary creative ability of the person skilled in the art based on the idea of each of the items. When the components described in each section have the same name, the components with the same name may be configured as different elements, but may be configured as the same element. For example, “continuous recording function” is configured as n continuous recording functions as “first continuous recording function”... “N-th continuous recording function” as a continuous recording function different for each item. However, some or all of them may have the same continuous recording function. For example, “predetermined stop state” may be determined separately, for example, for the items described in each item, and for example, overwrite may be suppressed for different recording targets. At least a part or all of the recording targets may be determined in combination to suppress overwrite on the same recording target.

With regard to (1) to (31), for example, even in the configuration provided with the continuous recording function and the event recording function, it is possible to more surely verify the image of an accident or the like. In particular, a configuration provided with a function to overwrite and record a recorded video by the event recording function onto a recorded video by the continuous recording function, a recorded video by the continuous recording function, a video recorded by the event recording function The effect is more remarkable when the configuration is made to record in preference to the above.
(32) The functions of the recording apparatus described above may be configured as a program for realizing the computer.

The perspective view of a drive recorder ((a) is a back side, (b) is a front side). FIG. 5 is a perspective view of a holder on which an acceleration sensor is mounted. The perspective view of the imaging unit accommodated inside ((a) is a back side, (b) is a front side). The block diagram explaining the electric constitution of drive recorder. The flowchart which shows the flow of control. Explanatory drawing of the recording operation by continuous recording. Explanatory drawing explaining data movement between a drive recorder and a personal computer. FIG. 7 is a front view showing an example of an operation setting screen displayed on a personal computer. The perspective view of other drive recorders. The perspective view of other drive recorders.

Embodiments of the present invention will be specifically described using the following examples.
Example 1
A drive recorder 1 illustrated in FIG. 1 as an example of a recording apparatus includes a substantially cylindrical main body case 2 in which an imaging unit and the like are accommodated. The main body case 2 can be attached to, for example, a windshield of a vehicle via a mounting bracket 3.

The bracket 3 includes a holding ring externally fitted to the substantially cylindrical main body case 2 and a substantially flat mounting plate 5 circumscribing the holding ring. The end portion of the main body case 2 inserted and arranged in the holding ring of the bracket 3 is configured to be capable of screwing a substantially donut-shaped cap 4 therein. The body case 2 can be fixed to the bracket 3 by screwing the cap 4 in a state in which the rotation angle of the body case 2 is adjusted. If the rotation angle of the main body case 2 with respect to the bracket 3 is adjusted, the photographing angle can be adjusted by changing the depression angle of the drive recorder 1.
The drive recorder 1 can be attached to, for example, a front window or the like via the attachment plate 5 so that the lens 14 of the CCD camera 13 faces a predetermined direction (generally, a front direction).

  An access hole 171 to the DC jack 16 and a USB port 172 to which a USB cable extended from a personal computer or the like can be connected are provided on the side end face of the main body case 2 substantially flush with the end of the screwed cap 4. It is perforated. An insertion port 181 for inserting an SD card is provided on the opposite side end surface of the main body case 2. At a position adjacent to the insertion slot 181, an LED (display unit) 181A is disposed. The LED 181A lights up during data access to an SD card, which is a memory card as an example of a storage medium inserted into the insertion slot 181.

  The main body case 2 is a hollow case in which a camera cover 2b and a back cover 2a, which are parts obtained by vertically dividing a substantially cylindrical shape into two parts, are combined. On the surface of the back cover 2a, a holder 7 (FIG. 2) for holding the holder body 7a rotatably, push buttons 8 and 9 as operating means, and pilot lamp illumination blocks 10 and 11 are provided. There is. The lens 14 of the CCD camera 13 is exposed on the surface of the camera cover 2b.

  An acceleration sensor 15, which is an example of a vibration detection unit, is mounted on the holder body 7a of FIG. In the holder 7, it is possible to arrange the acceleration sensor 15 in the horizontal direction as the reference position according to the rotation of the holder body 7a. The acceleration sensor 15 measures acceleration, which is a measurement value of a physical quantity reflecting the situation of the vehicle such as an applied impact.

  An imaging unit 21 is housed inside the main body case 2. As shown in FIGS. 3A and 3B, the imaging unit 21 is a unit having a substrate structure in which the main substrate 22 and the sub substrate 25 are stacked. On the main board 22, a CCD camera 13 which is an example of an imaging means, a GPS receiver 24 which is an example of a GPS receiving means, a DC jack 16, a power supply circuit (not shown) and the like are mounted. Further, on the mounting surface of the main substrate 22 facing the sub substrate 25, a not-shown one-chip microcomputer which forms a control controller 30 (see FIG. 4) which is an example of control means is mounted.

  Switches 27, 28 corresponding to the push buttons 8, 9 are disposed on the sub substrate 25, and LEDs 291, 292 corresponding to the pilot lamp illumination blocks 10, 11 are disposed. Furthermore, the sub substrate 25 is provided with a connector (not shown) for connecting a signal line extended from the acceleration sensor 15. On a mounting surface of the sub substrate 25 facing the main substrate 22, an SD card reader 311, which is an example of a medium storage unit for mounting and reading data on the SD card, is mounted.

The drive recorder 1 is electrically configured centering on a controller 30 which is an example of control means as shown in FIG. A CCD camera 13, an acceleration sensor 15, a GPS receiver 24, an SD card reader 311, and a database 32 are connected to the controller 30.
The controller 30 is mainly composed of a microcomputer (not shown), a flash ROM as an example of a storage means, a memory forming a main body memory such as a ROM, a RAM, a timer, etc. in one chip.

  In the ROM of the controller 30, a GPS information processing program for processing GPS information received by the GPS receiver 24, an image processing program for storing an image captured by the CCD camera 13 in a main body memory or an SD card, an OS (Operation System) Etc. are stored.

The GPS receiver 24 is a receiver that detects the position information of the vehicle at the current time according to the instruction of the controller 30. The detection timing by the GPS receiver 24 is set every one second in this example. The position information to be detected is the position, speed, latitude, longitude, and altitude of the vehicle. The GPS receiver 24 inputs the detected position information to the controller 30.
The CCD camera 13 is an imaging unit that captures a landscape in front of the lens 14 and acquires imaging data. The CCD camera 13 inputs imaging data to the controller 30 via the interface unit 33 capable of executing data compression and digital conversion.
The acceleration sensor 15 is a three-axis type sensor that detects an acceleration and an inclination in each of three axes (X, Y, Z), and inputs a detected value to the controller 30.
The SD card reader 311 reads and writes data of the SD card based on the control of the controller 30.

  The data recorded in the SD card under the control of the controller 30 includes image data (imaged image) by the CCD camera 13, position data and velocity data by the GPS receiver 24, and acceleration data by the acceleration sensor 15. . Each of these data is recorded in association with the recorded time. Such mutual association makes it possible to acquire position data, velocity data, and acceleration data from time to time in synchronization with the reproduction of imaging data. It is also possible to synchronously record imaging data together with velocity data, position data, acceleration data and the like.

  The database 32 is a non-volatile memory such as an EEPROM or the like that is externally attached to the controller 30 in the controller 30. In the database 32, a determination pattern for determining that the vehicle is in a predetermined stop state is stored. An example of the determination pattern of the stop information of the vehicle is, for example, a pattern in which the time during which the vehicle is kept stopped is equal to or longer than a predetermined time.

  When energization of drive recorder 1 is started in response to turning on of the vehicle ignition, setting information stored in the SD card is read and data is copied to the main body memory (RAM), and operation according to the setting information is started. Ru. If setting information is not stored in the SD card, default (initial setting) setting information stored in the main body memory (ROM) is copied to the main body memory (RAM).

  The setting information is information on settings such as a recording size, a frame rate, and an image quality. The individual setting for each user needs to be generated in the personal computer 35 and stored in the SD card, and then set in the drive recorder 1. Since the default setting is stored in advance in the ROM of the drive recorder 1 as described above, it can be set without using the personal computer 35 or the like.

The operation of the drive recorder 1 configured as described above will be described focusing on the flow of control by the controller 30 illustrated in FIG. 5.
When the drive recorder 1 is switched to the power on state, the controller 30 reads out the setting information copied to the main body memory (RAM) and reads out the judgment pattern of the stop state stored in the database 32. The controller 30 captures an image according to the read setting information to obtain an image, and as an example of a control of the continuous recording function, an example of a continuous recording operation for continuously recording the captured image in the recording area of the SD card. The continuous recording which is is performed (S101). The drive recorder 1 always performs continuous recording in the power supply state except when the overwrite suppression function is enabled. Therefore, this continuous recording is always recording.

  The controller 30 during continuous recording records a series of imaging data on the SD card as shown in FIG. The squares of each SD card in the figure schematically represent blocks, such as sectors, when dividing and managing the storage area.

  When the SD card is in an initialized state, the controller 30 executes recording (recording of imaging data) as shown in FIG. 6A. When the storage area of the SD card is full, the storage area of the master SD card is erased as shown in FIG. The order of deletion at this time is the order from the oldest recorded imaging data (the imaging timing is old) in the storage area of the SD card, and as shown in FIG. Erase the imaging data. The controller 30 records new imaging data as shown in FIG. 6C while erasing old imaging data as described above. By repeatedly executing such a recording operation, the captured video is continuously recorded.

  For example, as illustrated in FIG. 6A, in a state where the imaging data is recorded to the 14th block on the SD card, when the vehicle ignition is switched off and the power supply is interrupted, the controller 30 subsequently When the vehicle ignition is switched on, recording of imaging data is continued from the 15th block of the SD card.

  During continuous recording (S102 in FIG. 5: YES), the controller 30 uses the determination pattern of the stop state read from the database 32 to repeat the determination as to whether the vehicle is in the predetermined stop state or not. Execute (S103). The controller 30 uses the speed information acquired by the GPS receiver 24 to determine whether the vehicle is in a predetermined stop state. Specifically, it is determined that the vehicle is in the predetermined stop state when the speed represented by the speed information is maintained for less than 1 km / h for 3 minutes which is an example of the predetermined time.

  The controller 30 determines that the vehicle is in the predetermined stop state, for example, when the determination pattern that the time when the vehicle is held in the stop state is 3 minutes or more, which is an example of the predetermined time, matches the current vehicle state. The overwrite suppression function is executed (S103: YES). In the following description, a state in which the vehicle is held in a stopped state for 3 minutes or more is referred to as a predetermined stopped state. During execution of the overwrite suppression function, the controller 30 temporarily stops continuous recording by the continuous recording function (S104), thereby preventing erasure of recorded imaging data due to overwriting of new imaging data. Take control. On the other hand, if it is not in the predetermined stop state (S103: NO), the recording by overwriting is continued (S114).

  The controller 30 uses the speed information acquired by the GPS receiver 24 during the pause of continuous recording by the overwrite suppression function (S102: NO) to determine whether the vehicle has shifted to a predetermined traveling state or not. (S123). When transitioning to a predetermined traveling state (S123: YES), the suspension of the continuous recording by the overwrite suppression function is canceled, and the continuous recording is restarted (S124). In this example, as an example of the predetermined traveling state, a state where the vehicle is not in the predetermined stop state is set because the speed information acquired by the GPS receiver 24 exceeds 5 km / hour, for example, when the vehicle starts traveling. In the following description, this state is referred to as a predetermined traveling state. As described above, if the continuous recording is resumed in response to the start of traveling of the vehicle, it is possible to more reliably record the image during traveling in which an event such as an accident is likely to occur. On the other hand, if it is not the predetermined traveling state (S123: NO), the state of the recording stop by the overwrite suppression function is held (S134).

  The control as described above is repeatedly executed until the power supply is stopped (S105: NO), and ends when the power is turned off (S105: YES). For example, a capacitor or the like for storing power may be provided, and when the power supply is cut off, control may be performed to stop all operations after executing the recording end processing using the power stored in the capacitor. .

  In addition, when determining the predetermined stop state and the predetermined travel state, the controller 30 considers that the stop is continued until the vehicle travels at a predetermined speed such as 5 km per hour or more after the stop of the vehicle. In this way, if the speed is less than 5 km / hour, which is an example of the predetermined speed, it can be regarded as a stop and a predetermined stop state or a predetermined travel state can be determined. The predetermined speed may be, for example, a speed of several kilometers per hour corresponding to traffic congestion. For example, as in the case of a traffic jam, it is possible to prevent a large number of overwrites from being suppressed when repeating to stop slightly after going a little. The predetermined speed may be user settable.

  The imaging data recorded in the SD card can be browsed using a tablet computer, an installation type personal computer, or the like in which application software for the drive recorder 1 is installed. If it is a personal computer or the like provided with a card slot, the recorded image data can be browsed by setting the SD card removed from the drive recorder 1 in the card slot (see FIG. 7). It is also possible to take out the drive recorder 1 with the SD card set in it from the vehicle, connect it to a personal computer or the like through a USB cable, and view the image data recorded in the SD card.

  The operation setting of the drive recorder 1 can be changed or the like in a personal computer or the like in a state in which the imaging data can be browsed. If the operation setting screen (FIG. 8) is displayed on a personal computer or the like, various operation setting items such as the screen resolution and the frame rate can be changed. The setting information set using the personal computer is stored in the SD card, and thereafter read out when power is started, and set on the main body side of the drive recorder 1.

  The drive recorder 1 configured as described above has a function of suppressing overwriting when the vehicle is in a predetermined stop state. The drive recorder 1 can prevent the image in the stopped state from being continuously recorded over the recorded image (image pickup data) recorded during traveling, so the image of the moment when an event such as an accident occurs is displayed. There is little risk of being erased. If continuous recording is to be continued, for example, it is necessary to turn off the power of the drive recorder 1 to stop the continuous recording with overwriting, but if the overwrite suppression function is executed, an accident or the like may occur even if the power is not turned off. It is possible to prevent in advance the situation in which the image at the moment when the event occurs occurs is erased.

  On the other hand, even if the vehicle stops and the stop time does not reach the predetermined time, for example, three minutes, and the predetermined stop state is not determined, the overwrite suppression function is not enabled and continuous recording is continued. By adopting such a setting for the overwrite suppression function, it is possible to record video of the moment when an event such as an accident occurs with high reliability by continuous recording, and an event such as an accident occurs by the overwrite suppression function. It is possible to suppress the possibility that the image at the moment of being erased may be deleted. As described above, according to the overwrite suppression function, it is possible to balance the recording and the storage of the video with a better balance.

  As in the drive recorder 1 of the present embodiment, in the configuration in which the newly acquired video is written over the video already recorded by continuous video recording, the overwrite suppression function has a particularly remarkable effect. In particular, in the drive recorder 1 of this example, which performs continuous recording while continuously recording while overwriting and erasing recorded images while power is on, the overwrite suppression function has the most remarkable effect.

  The drive recorder 1 sets a state in which the vehicle is stopped for three minutes, which is an example of a predetermined time, as a predetermined stop state which is an opportunity to execute the overwrite suppression function. According to the drive recorder 1, it is possible to suppress with high certainty the possibility that the image at the moment when an event such as an accident occurs may be erased when the stopped state exceeding a predetermined time continues.

  Furthermore, the drive recorder 1 is configured not to execute the overwrite suppression function when the vehicle is not in the predetermined stop state. By adopting such a configuration, it is possible to more reliably record the video at the moment when an event such as an accident occurs, and to suppress the possibility of erasing the video at the moment when an event such as an accident occurs. And both can be balanced in a better balance.

The drive recorder 1 uses the speed information acquired from the GPS receiver 24 to determine a predetermined stop state. For example, the vibration state specified based on the acceleration measured by the acceleration sensor 15 which is an example of the vibration detection means is a predetermined state such as an acceleration of 0.05 G or less, and the speed information acquired from the vehicle is, for example It is a predetermined state such as 1 km / h or less, that the speed information based on the position information acquired from the positioning means is a predetermined state such as 1 km / h or less, the speed information obtained from the GPS receiver 24 is 1 km / h It may be configured to determine whether or not the vehicle is in the predetermined stop state based on at least one of the predetermined states such as the following. In particular, the determination may be made based on at least any two of these. In this way, it can be more reliably discriminated whether the vehicle is in the predetermined stopping state.
For example, any of the above-described predetermined states may be set in an actual stop state, and in particular, may not be set in a traveling state. For example, it is good to memorize the state actually measured in a stop state, and to judge whether it is in a predetermined state based on whether it matches with the memorized pattern. As the predetermined state of the vibration state acquired from the vibration detecting means, for example, the vibration characteristic at the time of stopping which is different from the vibration characteristic at the time of traveling is stored, and when it matches with the vibration characteristic at the time of stopping It is good to make a decision.

  The continuous recording may be configured to store the video of the continuous recording in file units at predetermined time intervals. In this configuration, the recorded video is created in file units at predetermined time intervals and will be overwritten. In particular, in the case of a configuration in which overwrite suppression is performed for recorded images of continuous recording for a predetermined time before and after the vehicle when the vehicle is in a predetermined stop state, the predetermined time may be about one minute. As described above, when the file unit is, for example, about one minute, it can be easily processed as the file at the time of stopping, the file up to one to two before, and the file one after.

  Further, as a suppression of overwriting, it is preferable to have a function of recording continuous recordings in different storage areas according to whether or not the predetermined stop state is set, and performing the overwrite recording in each storage area. In this way, even if the vehicle is in the predetermined stopping state for a long time, the image in the state not in the predetermined stopping state (for example, the image during traveling) is the image of the state in the predetermined stopping state It can control that it overwrites. It is better to overwrite the continuous recording when the vehicle is in the predetermined stop condition from the limitation of the memory capacity.

  Another storage area may be a separately managed storage area, for example, a different folder or a different drive. For example, as shown in FIG. 9, the drive recorder 1 having the SD card insertion slots 181 and 182 is adopted, and when the vehicle is in a predetermined stop state, continuous recording is performed in the storage area of the SD card in the insertion slot 181 If the vehicle is not in the predetermined stop state, continuous recording may be performed in the storage area of the SD card of the insertion slot 182.

  As “in accordance with whether or not the vehicle is in the predetermined stopping state”, “in the case of the predetermined stopping state and in the case of not being in the predetermined stopping state” may be set. As another storage area, for example, a storage area for a predetermined stop state and a storage area for a non-predetermined stop state may be provided. As "in accordance with whether or not the vehicle is in the predetermined stopping state", "it may be immediately after changing whether or not the vehicle is in the predetermined stopping state", but "it is changed whether or not the predetermined vehicle stopping state is You don't have to say "when". In particular, in the case where the continuous recording function is configured to generate a file in file units every predetermined time (for example, one minute), for example, when changing from a non-predetermined stop state to a predetermined stop state Alternatively, processing may be performed to switch the storage area of the storage destination of the file immediately when it changes from a predetermined stop state to a state other than the predetermined stop state. Until the end of recording of the recording unit time (for example, the above-mentioned one minute), the recording area of the file storage destination is not switched, and when the recording of the file unit in the recording is completed, It is preferable to determine whether or not there is a predetermined stop state by the determination, and to determine the storage area of the storage destination of the file.

  Continuous recording may be distinguished, for example, between traveling and stopping, and recording of continuous recording may be recorded in another folder while traveling and stopping, and may be overwritten and stored in each folder. In this way, even if the engine is stopped without stopping the engine for a long time, it is possible to prevent the situation where the recording during traveling is overwritten and overdue while the vehicle is stopped, and it is also possible to record an accident while stopped. It is better to overwrite the continuous recording while stopped from the limitation of memory capacity.

  Moreover, it is good to set it as the time which exceeds the stop time in a general signal waiting degree, as time which "stops for a predetermined time continues" of "the state where a vehicle stopped and the stop continued for a predetermined time". It is preferable not to suppress the overwriting in the stopping time at the general signal waiting time, but to suppress the overwriting when the vehicle stops for a relatively long time. In this way, it is possible to prevent the suppression of overwrite each time a signal is waited, reduce the frequency of suppression of overwrite, and reduce the probability of erasing even with a small memory capacity.

  In particular, it may be about 3 minutes to 5 minutes. In this way, it is possible to prevent the possibility of overwriting the record at the time of the accident by continuous recording while stopping without forgetting to turn off the engine, and it is not an accident if normal traveling is resumed in a shorter time than this. Since it is considered that this is not a serious accident, the overwrite control works excessively, and it is possible to prevent the storage area from being filled with the video in which the overwrite is suppressed, and there is little risk of squeezing the recordable area of continuous recording. it can.

  In addition, when the vehicle stops, but the stop does not continue for a predetermined time, the suppression of the overwrite on the recorded video of the continuous recording for a predetermined time before and after the time when the stop is started is not performed. Good.

  As a predetermined stop state, the vehicle travels and then stops again after the vehicle stops, and a state in which the time of the restop is equal to or more than a predetermined time such as 2 minutes is provided, and the vehicle is in the predetermined stop state Preferably, the overwriting is suppressed for the video of continuous recording before and after the stop and the video of continuous recording before and after the restop. In this way, when the car is moved to a safe place after the accident, the picture at the time of the accident and the picture when moved to the safe place can be stored and stored more reliably.

More specifically, for example, in the continuous recording, when the vehicle stops, recording data (imaging data) of the continuous recording for a predetermined time such as one minute, for example, before and after that, or a recording data file including it is temporarily stored. Thereafter, when the vehicle travels and is stopped again, if the stopping time is equal to or more than a predetermined time such as 2 minutes, recorded data including the recording data for a predetermined time such as 1 minute, etc. The file and the temporarily stored recording data or a recording data file including the file may be moved or copied and stored in any one of a specific folder, a specific storage area, and a specific storage medium. The temporary storage may be deleted, for example, when traveling is resumed above a predetermined speed such as 5 km / hr.
Not only may processing be performed until a stop before the stop for a predetermined time or more, the same overwrite suppression may be performed up to the second and third before the stop.

The predetermined stop state is a state in which the stop time of the vehicle is, for example, a predetermined time such as 3 minutes or more, and the time is stored each time the vehicle stops, and the stop is continued for the predetermined time or more In addition, it is preferable to suppress the overwriting of the images of the continuous recordings of the predetermined time before and after the stop time stored until the predetermined time described later, which will be described later.
In this way, for example, even if the vehicle is moved to a safe place after the accident, even if the vehicle is stopped several times, the image at the time of the accident and the image when the vehicle is stopped a plurality of times are more reliable Can be stored in memory. In addition, since the time is stored, the required temporary storage capacity is smaller than in the configuration in which the video data is temporarily stored for each stop, and the cost increase can be suppressed easily.

The predetermined number may be the number of times or time. For example, it may be four times, for example, five minutes. It is preferable to set both conditions of time and number of times. For example, it may be 4 times and 5 minutes.
The time may be an end time of the stop or a time during stop, but may be a start time of the stop. It is preferable to store the stop time of each time, and when there is a stop continuing for a predetermined time or more, the recordings before and after the start of the stop at the time of the stop before the predetermined time may be stored.
More specifically, for example, when the vehicle stops, the time at which the stop is started is stored each time the vehicle stops, and when the stop continues for a predetermined time or more, the start time of the stop and the start time of the stop up to a predetermined time before that It is preferable to move or copy continuous recording data in which recordings before and after a predetermined time are stored, or a continuous recording data file including it, to any one of a specific folder, a specific storage area, and a specific storage medium.

When it is determined that the predetermined stop state is determined, the plurality of different time points are determined as the target of suppression of the overwrite, and the suppression of the overwrite is performed on the recorded video of the time including the time and the time Good.
In this way, the storage capacity of the temporary storage is smaller and the cost increase can be suppressed easily and easily as compared with the configuration in which the video data at each time and before and after that is temporarily stored in the main memory such as RAM at each time. As a result, it is possible to more surely store and save the video at the time of the accident and the video related to it.

The configuration is based on the condition that the stopping time is equal to or longer than the predetermined time in the determination as to whether the vehicle is in the predetermined stopping state, the vehicle is stopped, and the power supply from the vehicle is shut off before the stopping is continued for the predetermined time or more. In this case, it may be considered that the stop has continued for a predetermined time or more.
If the engine is stopped immediately after the vehicle stops, continuous recording does not proceed any further and it will not be erased by overwriting while the vehicle is stopped, but starting the engine again to start traveling will start continuous recording, so overwrite It is better to save as there is a possibility that it will be erased.
In addition, by adopting a configuration in which it is considered that the vehicle has stopped as described above, it is possible to facilitate the configuration in which the time during which the engine is stopped does not have to be included in the stop time. In such a configuration, it is not necessary to perform processing for obtaining the stopping time at the end of the power supply or at the start of the power supply. For example, in order to determine the stopping time, it is not necessary to calculate the stopping time from the last recording time before stopping the engine and the time when the engine is started, for example, at the time of power supply.

When the power supply from the vehicle is shut off, it is determined that the vehicle is in the predetermined stop state, and if the overwriting is to be suppressed, the backup power supply is used or the power is turned on to start the circuit. It is good to process it at the same time.
If it is a drive recorder equipped with a battery, the operation may be stopped after storage processing with the battery, but there may be cases where the battery is not installed or the battery may be exhausted. It is better to process when it is inserted.

Overwrite suppression is performed by storing the video in any one of a predetermined folder, a predetermined storage area, and a predetermined storage medium, and for the storage, the overwrite prohibition or the overwrite permission can be set in advance or the setting can be changed. In the case of the overwrite permission, it is preferable that the probability that the memory is erased by the overwrite is lower than the overwrite of the continuous recording.
If it is clear in advance whether or not overwrite is permitted or not, it is preferable to set one from the beginning (for example, at the time of shipment) and to be able to change the setting if it is preferable to set it according to the user's usage. Even in the case of the overwrite permission, it is possible to more surely record an image at the time of an accident or the like by making the probability that the storage is erased by the overwrite lower than the overwrite of the continuous recording.

While the power is supplied, it has a constant recording function to continuously record continuously, and the predetermined folder, the predetermined storage area, or the storage to the predetermined storage medium is a folder different from the constant recording and the event recording , Storage area or storage medium.
In this way, it is possible to reduce the effects of constant recording and event recording. In addition, it is possible to reduce the impact on constant recording and event recording. And, search becomes easy.

(Example 2)
This example is an example in which an overwrite suppression button 80 (see FIG. 10), which is an example of operation means operated by the user to suppress overwriting, is added based on the drive recorder 1 described above.
The controller 30 (see FIG. 4) overwrites the image in a predetermined range, such as a recording range over one minute, including the image currently being recorded, when the overwrite suppression button 80 is operated during execution of continuous recording. Suppress. Even when the power is shut off, the controller 30 suppresses the overwrite including the video of a predetermined range such as a recording range for one minute before the power shutoff.

The drive recorder 1 is very effective when the power of the drive recorder 1 is turned off by an accident or by turning off the engine without operating the overwrite suppression button 80 at the time of an accident. When the power is supplied again, the video overwrite can be suppressed at that point in the predetermined range before the power shutoff.
In addition, about another structure and an effect, in the range which does not produce contradiction, it is the same as that of another Example.

(Example 3)
This example is an example of a drive recorder added with a function of detecting the engine start by the engine starter based on any of the above-mentioned drive recorders.
The drive recorder is provided with a communication port for capturing a vehicle signal including a signal representing an engine speed.

  The controller 30 (see FIG. 4) detects the start of the engine when an engine speed that has not reached a threshold, such as 300 revolutions, exceeds the threshold. Then, when engine start is detected, control is performed to suppress overwriting of the recorded imaging data.

In the case of the drive recorder of this example, there is less possibility that the image at the moment when an event such as an accident occurs is erased by the image while starting the engine with the engine starter and idling.
In addition, about another structure and an effect, in the range which does not produce contradiction, it is the same as that of another Example.

(Example 4)
This example is an example in which the target for suppressing the overwrite is temporally expanded based on any of the above-described drive recorders when the vehicle is in a predetermined stop state.
The controller 30 (see FIG. 4) of this drive recorder executes control to suppress overwriting of recorded images of continuous recording for a predetermined time before and after that when the vehicle is in a predetermined stop state.

  For example, when an accident or the like occurs, there are many drivers who stop immediately after that, so it is highly possible that a recording such as an accident or the like is recorded if overwrites are suppressed by storing video before and after stopping in a dedicated folder or the like. . Therefore, according to the drive recorder of this example which suppresses overwriting of imaging data for a predetermined time before and after a predetermined stop state, recording data can be stored and saved more reliably at the time of an accident and before and after the accident.

  For example, in the case of a drive recorder provided with an event recording function and a continuous recording function to be described later in the tenth embodiment, the predetermined time before and after is longer than the recording time by event recording and longer than the recording time by the continuous recording function. It is good to have a short time. For example, it is preferable to suppress overwriting in a range starting from several tens of seconds before stopping to several minutes before and ending from several tens of seconds to several minutes after stopping. In particular, it is better to lengthen the overwrite suppression time before the stop than after the stop, and it is preferably about 1 to 3 minutes before and several tens of seconds to 1 minute after. If it is too long, the memory capacity will be large and the possibility of being erased by overwriting will be high, but in this way it is not necessary to increase the memory capacity, and the possibility of being erased is also low. The contents of the accident can be recorded reliably, including the process of encountering the accident and the process after the accident.

It should be noted that, when the vehicle is in a predetermined stop state, the overwriting may be suppressed with respect to the recorded video of continuous recording for a predetermined time before and after the time when the stop is started. In this way, it is possible to prevent the overwriting from being suppressed each time the vehicle is stopped, and it is possible to reduce the probability of erasing even when the video recording capacity is small, as in the case of a small memory capacity.
The other configurations and effects are the same as those of the other embodiments as long as no contradiction arises.

(Example 5)
This example is an example in which the control in the case where the power is shut off is changed based on any of the drive recorders 1 described above.
The controller 30 (refer to FIG. 4) of this drive recorder, when the power of the drive recorder 1 is shut off, immediately before the shutoff of the power, starts the stop before the shutoff, or the predetermined one before the shutoff. Control is performed to suppress overwriting of recorded images of continuous recording including at least one of the time points when the vehicle stops.

  It is important to take measures to reduce the possibility of erasing the recording at the time of an accident etc. by overwriting the continuous recording by stopping for a long time without stopping the engine at the time of an accident etc., but actually the engine is stopped even at the time of an accident It seems that there are more cases to stop / park. In this case, the event recording may be performed before the engine is stopped, but in the case of a configuration without the event recording function or when the event recording is not determined because it is not determined as an event, etc., an accident There is a possibility that the video in the event of continuous recording may be erased by overwriting in the running after processing, but in this way it is possible to prevent itself like this, and more reliably record the video in the event of an accident etc. It can be done. In particular, when the power supply of the drive recorder 1 is supplied from a vehicle and the power supply from the vehicle is shut off when the engine of the vehicle is stopped, the recording before the stop of the engine is stored each time. become. In particular, for suppression of overwriting, for example, a dedicated folder may be provided and overwrite recording may be performed. Further, as “including the time point of 1”, for example, it is preferable to set a predetermined time before and after the time point of 1. For example, when the power of the drive recorder 1 is shut off after the vehicle has stopped, it is preferable to perform an overwrite suppression process on recorded images of continuous recording for a predetermined time before and after the stop.

  Further, it is preferable that a backup power supply capable of supplying power at the time of power shutoff is provided, and at the time of power shutoff, suppression of overwriting is performed by the backup power supply. With the drive recorder configured in this way, it is possible to suppress overwrite more reliably. Note that, in the case where the backup power supply is not provided or the backup power supply is provided but the capacity of the backup power supply is decreased, it is preferable to suppress the overwriting after the power is turned on.

In particular, for example, with regard to recorded video of continuous recording including at least any one point of time immediately before the shutoff of the power supply, the time of starting the stop before the shutoff of the power supply, or the time of the predetermined stop state before the shutoff of the power supply. The following process may be performed to suppress the overwrite. For example, if there is a backup power supply, the backup power supply performs overwrite suppression processing and then the power supply is turned off, and if the backup power supply is not installed, or if the capacity of the backup power supply is low, the next power supply It is better to perform the overwrite suppression process after the startup is started. This is good because it needs to be processed after the power is shut off.
The other configurations and effects are the same as those of the other embodiments as long as no contradiction arises.

(Example 6)
This example is an example in which a configuration for switching over control to suppress overwriting is added according to the position of the vehicle based on any of the above-mentioned drive recorders.
The controller 30 (see FIG. 4) of this drive recorder executes a process to determine, for example, whether or not the location determined by the GPS receiver 24 is a preset location. The controller 30 does not suppress overwriting when the vehicle location is a preset location.

For example, there are many cases where it is unnecessary to record an accident at a place where you usually park well, such as a parking lot at home or at work, so for example, a place where such recording is unnecessary is set in advance. You should not make it. As a result, it is possible to reduce the probability that a necessary image, such as a record at the time of an accident, will disappear due to overwriting. The setting of the place where the overwrite suppression process is not performed may be, for example, storing and setting the position when an instruction such as a button operation is input at the place.
In addition, about another structure and an effect, it is the same as that of another Example in the range which does not produce contradiction.

(Example 7)
The present example is an example in which the determination pattern of the predetermined stop state is changed based on any of the drive recorders 1 described above.
The drive recorder 1 includes vibration detection means (not shown) for detecting vibration. The controller 30 (see FIG. 4) detects the magnitude of the impact according to the magnitude and pattern of the vibration detected by the vibration detection means, and the accident occurs when the magnitude of the shock is equal to or greater than a predetermined threshold value It is determined that the possibility of

  In the drive recorder 1 of the present embodiment, as a determination pattern for determining a predetermined stop state, after an impact equal to or greater than a threshold is detected, a pattern in which the vehicle is stopped within several tens of seconds, which is an example of a predetermined time Is stored in After the impact occurs, when the vehicle is stopped within a predetermined time, the controller 30 determines whether the determination pattern of the stop state matches the actual vehicle state, and if it matches, the predetermined stop state It is determined that As in the first embodiment, in the case of the predetermined stop state, the continuous recording is stopped and the overwrite suppression function is executed to prevent the erasing of the recorded imaging data.

  The determination pattern of the stop state of this example is a determination pattern based on the knowledge that when a general driver encounters an accident, after an impact occurs, behavior of stopping within a predetermined time is often taken. By adopting such a determination pattern, it is possible to more reliably suppress the possibility that the imaging data of the image at the moment when an event such as an accident occurs is erased.

  In this example, it is determined that there is a possibility of an accident when an impact having a magnitude equal to or greater than a predetermined threshold value is detected. However, instead of or in addition to this, the case of determining the possibility of an accident If failure detection information such as a vehicle ECU acquired from a diagnostic system such as an OBD is information indicating a failure, it is recognized that the air bag etc. has been operated, the image is recognized as an image, and the situation corresponds to an accident. It is also possible to set, for example, when a scene in which an image is captured is detected. The situation corresponding to the accident is, for example, a situation where a deformed vehicle or an injured person has occurred.

  The drive recorder is provided with a function to detect at least one of rescue of the other party, personal injury, talking with the other party, etc., and when any one is detected, the overwrite suppression function is effectively controlled. It is also good to do. In this way, it is possible to more reliably suppress the possibility that the image at the moment when an event such as an accident occurs is erased. For example, it is preferable that the captured video be recognized and detected for the rescue of the other party, the injury of the person, and the talking with the other party.

In the case of detecting at least one of rescue of the other party, injury of the person, and talking with the other party, for example, rescue of the other person, injury of the person, talking with the other party, etc. It may be immediately after detecting at least any one of the following, but it may be taken after a predetermined time such as 2 minutes, for example, rescue of the other party, injury of the person, talking with the other party etc. After detecting at least any one of them, it is preferable to stop detecting them. In this way, the rescue and discussion are also recorded in the video, but since these times are relatively short, it is said that the recorded imaging data of the video at the time of the accident has been overwritten and erased. You can control the situation. As a method of detecting the rescue of the other party, injury of the person, talking with the other party, etc., for example, it is preferable to detect by image recognition on the captured video. The determination of being in a state of talking with the person's injury, the other person, etc. is provided with a function of recognizing a person in the image captured by the vehicle by image recognition processing such as face recognition, for example, It may be performed based on whether or not the present time is a predetermined pattern stored in advance. For example, when two or more persons are recognized beyond a predetermined time such as 2 minutes, or when the same person is repeatedly recognized or not within a predetermined time such as 3 minutes, for example. It is good to suppress overwrite.
In addition, about another structure and an effect, in the range which does not produce contradiction, it is the same as that of another Example.

(Example 8)
This example is an example in which the control content of the overwrite suppression function is changed based on any of the above-described drive recorders.
In the overwrite suppression function of this example, continuous recording is not completely stopped even in the predetermined stop state. The controller 30 (see FIG. 4) of the drive recorder 1 of this example changes the video recording method and the like by continuous recording so as to secure a long time until the overwriting and erasing when it is determined to be a predetermined stop state. To reduce the possibility of erasing the recorded video.

  When the controller 30 is not in the predetermined stop state, the controller 30 performs continuous video recording, for example, at 30 frames per second. On the other hand, when it is determined that the predetermined stop state, the overwrite suppression function switches to continuous recording in which the number of frames such as one frame per second is reduced.

  According to the drive recorder 1, when it is determined that the predetermined stop state is set, continuous recording can be continued while saving the memory capacity required for recording the video. It becomes possible to cope with the case of an emergency such as having an argument with the other party of the accident while continuing the predetermined stop state, for example, and it is possible to secure the video evidence useful for the proof of the process and the like. On the other hand, when it is determined that the predetermined stop state, the memory resource required for recording the video is saved by the overwrite suppression function, so the recorded video at the moment when an event such as an accident occurs may be erased by overwriting. Less.

  As a configuration to reduce the frame rate, the video is recorded at several tens of frames per second in normal continuous recording, while the frame rate is a human digit, such as several frames per second (for example, 1 fps) while the overwrite suppression function is being executed. It is good to make a change to make it smaller.

It is also possible to change the number of pixels of the image to be recorded instead of or in addition to the change of the frame rate. As for the number of pixels, for example, it is preferable to change 640 × 480 dots to 320 × 240 dots or to change the number of pixels to a human digit.
In addition, about another structure and an effect, in the range which does not produce contradiction, it is the same as that of another Example.

(Example 9)
This example is an example in which the content of control by the overwrite suppression function is changed based on any of the above-described drive recorders 1.
In the overwrite suppression function of the drive recorder 1 of this example, the controller 30 (see FIG. 4) performs control so that recorded imaging data is not erased by overwriting. At least one of the following methods is adopted as a configuration for controlling so as not to be erased by overwriting.
(1) Overwrite the recorded imaging data.
(2) Copy imaging data to an area other than the overwrite area, which is a write area for continuous recording.
(3) Move the imaging data to an area that is not an overwrite area.

  If the methods (1) to (3) are adopted, the video at the moment when an event such as an accident included in the recorded video occurs does not disappear due to the overwriting, and the event such as an accident occurs more surely. It is possible to eliminate the possibility that the image at the moment of the image is erased. Each method may be configured, for example, as follows.

(1) As a configuration for prohibiting overwriting, for example, video to be recorded may be recorded as one file in a predetermined time unit, and an overwrite attribute may be given as an attribute of the file.
(2) As a configuration for copying to an area that is not an overwrite area, for example, an overwriteable area and an overwrite prohibition area may be divided, and video data recorded in the overwritable area may be copied to the overwrite prohibition area.
(3) As a configuration for moving to an area that is not the overwrite area, for example, the overwriteable area and the overwrite prohibition area may be divided, and the video data recorded in the overwrite area may be moved to the overwrite prohibition area. The overwritable area and the overwritable area may be, for example, different folders, different drives, or different file systems.

Note that, for example, it is preferable to move or copy and store imaging data of recorded video or an imaging data file including the same to any of a specific folder, a specific storage area, and a specific storage medium. And it is good also as movement or copy to the folder etc. of overwrite prohibition as suppression of overwrite, for example, it is practical to carry out exclusive folder etc. with overwrite permission since stop is frequent when traveling in the town etc. . Since the amount of data in the exclusive folder etc. becomes smaller than the amount of data of continuous recording by performing the suppression of the overwrite in the method of moving or copying to the exclusive folder etc. with the overwrite permission as described above, If the same storage capacity as recording is used, the probability of being erased is low and it is useful.
In addition, about another structure and an effect, in the range which does not produce contradiction, it is the same as that of another Example.

(Example 10)
The present example is an example in which an event recording function of performing recording in response to an event such as an accident is added based on any of the above-mentioned drive recorders.

  The controller 30 (see FIG. 4) of the drive recorder of this example executes comparison of the acceleration detected by the acceleration sensor 15 with a threshold. In response to an event that acceleration exceeding a predetermined threshold is generated, the controller 30 executes event recording for recording an image before and after the generation time.

  When the above-described event occurs during execution of continuous recording, the controller 30 performs event recording in which video of a predetermined period before and after the occurrence time of the event is recorded in overwrite-prohibition in parallel with continuous recording. When an event occurs during effective control of the overwrite suppression function, a vacant area of the storage area of the SD card is used to record the video before and after the event occurrence time in an overwrite prohibited state. When the storage area of the SD card is not enough, the video before and after the event occurrence time is recorded in the storage area of the main body memory with overwrite prohibition. The imaging data of the video before and after the event occurrence time is recorded in synchronization with the velocity data, the position data, the acceleration data, and the like.

  In this way, even if, for example, an event such as an accident occurs while the overwriting is being suppressed, video recording is performed by the event recording function, and the image of the moment when the event such as an accident occurs. Can be more reliably suppressed. In particular, when the vehicle is in the predetermined stopping state, the overwriting is suppressed, and therefore, when an accident occurs at the time of stopping, the possibility that the image of the moment such as the accident is erased can be suppressed more reliably. Since there is also an occurrence of an accident while stopping, it is desirable to have the event recording function record.

In the drive recorder 1 of this example, since the imaging data of the video by the event recording is recorded with overwrite prohibition, it is possible to prevent the video of the moment such as the accident from being erased surely.
In this example, although the output signal of the acceleration sensor 15 is used to detect the occurrence of an event, the output signal of another sensor may be used, and a signal from a switch or the like is used to generate an event. It is also good to detect the occurrence.

  In a drive recorder provided with an event recording function, it is preferable to set the recording time by the continuous recording function to a longer time than the recording time by the event recording function. In this way, overwriting of the recorded video by continuous video recording is suppressed, and it is possible to suppress the possibility of erasing the video of the continuous video recording already recorded at the moment when an event such as an accident occurs. When event recording is not performed because the impact is small enough not to be regarded as an event, it is possible to increase the possibility that the image of the event such as an accident can be confirmed by the continuous recording image. In addition, even when video is recorded by the event video recording function, the continuous video recording recorded over a longer time than the video by the event video recording causes the situation before and after an event such as an accident for a longer time. It has a remarkable effect of being able to confirm.

It is preferable that continuous recording and event recording be continuously performed even while the vehicle is stopped. In this way, for example, it becomes a complement when it disappears due to a drop or overwrite. In addition, when used in combination with continuous recording and event recording, the reliability of recording and storage at the time of an accident etc. is further enhanced.
In addition, about another structure and an effect, in the range which does not produce contradiction, it is the same as that of another Example.

(Example 11)
It is an illustration of a preferred configuration for any of the above-described drive recorders 1.
For example, it is preferable to configure the following (a) to (i) for the purpose of storing and storing recorded data more reliably at the time of an accident and before and after that. These are focused on stopping the vehicle immediately, especially when the vehicle causes an accident or when witnessing an accident and performing rescue. For example, it is possible to solve the problem that the recorded video disappears in the case of the continuous recording, and the problem that the event recording is not stored and stored when, for example, the sensor does not detect or does not operate the button.

(A) It may be determined whether or not it is immediately after the accident, and when it is judged that it is immediately after the accident, it is preferable to have a function to suppress the overwriting.
In this way, it is possible to more reliably store and save the video at the time of the accident and before and after that. As a more specific configuration, for example, the following (c) and (d) may be employed.

(B) After the accident, it is judged whether the car was moved to a safe place, and if it is judged that the car was moved to a safe place after the accident, an overwrite suppression function to suppress the overwrite is provided. Good.
In this way, it is possible to more reliably store and save the video at the time of the accident and before and after that. As a more specific configuration, for example, the following (e) may be employed. In this case, the suppression of the overwriting may be performed particularly on the image including the time before and after the accident.
It is preferable to store area information and the like of the safe place in advance and to determine whether or not the place is a safe place based on whether or not the detected current position is included in the stored area range. Alternatively, area information or the like of an unsafe place may be stored in advance, and determination may be made based on whether or not the current position is out of this area. In particular, it may be an area of unsafe place on the road.

(C) A continuous recording function is provided, and the predetermined stopping state is that the vehicle is in the stopping state, and when the vehicle is in the predetermined stopping state, the recorded video of the continuous recording for a predetermined time before and after that It is preferable to be configured to suppress overwriting.
When an accident or the like occurs, there are many drivers who stop immediately after that, so it is highly possible that a recording such as an accident is recorded if overwrites are suppressed, for example, by storing images before and after the stop in a dedicated folder. Recorded data can be stored and stored more reliably at the time of an accident and before and after that.

  For example, when there is an event recording function and a continuous recording function, the predetermined time before and after may be longer than the recording time by event recording and shorter than the recording time by the continuous recording function. For example, it is preferable to suppress overwriting in a range starting from several tens of seconds before stopping to several minutes before and ending from several tens of seconds to several minutes after stopping. In particular, it is better to lengthen the overwrite suppression time before the stop than after the stop, and it is preferably about 1 to 3 minutes before and several tens of seconds to 1 minute after. If it is too long, the memory capacity will be large and the possibility of being erased by overwriting will be high, but in this way it is not necessary to increase the memory capacity, and the possibility of being erased is also low. The contents of the accident can be recorded reliably, including the process of encountering the accident and the process after the accident.

  The continuous recording may be configured to store the video of the continuous recording in file units at predetermined time intervals. In this configuration, the recorded video is created in file units at predetermined time intervals and will be overwritten. In particular, when the configuration of (c) is provided, the predetermined time may be about one minute. As described above, when the file unit is, for example, about one minute, it can be easily processed as the file at the time of stopping, the file up to one to two before, and the file one after.

(D) As a suppression of overwriting, it is preferable to have a function of recording continuous recordings in different storage areas according to whether or not a predetermined stop state is set, and performing the overwrite recording in each storage area.
In this way, even if the vehicle is in the predetermined stopping state for a long time, the image in the state not in the predetermined stopping state (for example, the image during traveling) is the image of the state in the predetermined stopping state It can control that it overwrites. It is better to overwrite the continuous recording when the vehicle is in the predetermined stop condition from the limitation of the memory capacity.

Another storage area may be a separately managed storage area, for example, a different folder or a different drive.
As “in accordance with whether or not the vehicle is in the predetermined stopping state”, “in the case of the predetermined stopping state and in the case of not being in the predetermined stopping state” may be set. As another storage area, for example, a storage area for a predetermined stop state and a storage area for a non-predetermined stop state may be provided. As "in accordance with whether or not the vehicle is in the predetermined stopping state", "it may be immediately after changing whether or not the vehicle is in the predetermined stopping state", but "it is changed whether or not the predetermined vehicle stopping state is You don't have to say "when". In particular, in the case where the continuous recording function is configured to generate a file in file units every predetermined time (for example, one minute), for example, when changing from a non-predetermined stop state to a predetermined stop state Alternatively, processing may be performed to switch the storage area of the storage destination of the file immediately when it changes from a predetermined stop state to a state other than the predetermined stop state. Until the end of recording of the recording unit time (for example, the above-mentioned one minute), the recording area of the file storage destination is not switched, and when the recording of the file unit in the recording is completed, It is preferable to determine whether or not there is a predetermined stop state by the determination, and to determine the storage area of the storage destination of the file.

  For example, continuous recording may be divided into running and stopped, and recording of continuous recording may be recorded in another folder while running and stopped, and overwritten and stored in each folder. In this way, even if the engine is stopped without stopping the engine for a long time, it is possible to prevent the situation where the recording during traveling is overwritten and overdue while the vehicle is stopped, and it is also possible to record an accident while stopped. It is better to overwrite the continuous recording while stopped from the limitation of memory capacity.

(E) The predetermined stopping state is a state in which the vehicle is stopped and the stopping is continued for a predetermined time, and when the vehicle is in the predetermined stopping state, a predetermined time before and after the start of the stopping It is preferable that the overwriting is suppressed with respect to the recorded video of the continuous recording.
In this way, it is possible to prevent the overwriting from being suppressed each time the vehicle is stopped, and it is possible to reduce the probability of erasing even when the video recording capacity is small, as in the case of a small memory capacity.

  Moreover, it is good to set it as the time which exceeds the stop time in a general signal waiting degree, as time which "stops for a predetermined time continues" of "the state where a vehicle stopped and the stop continued for a predetermined time". It is preferable not to suppress the overwriting in the stopping time at the general signal waiting time, but to suppress the overwriting when the vehicle stops for a relatively long time. In this way, it is possible to prevent the suppression of overwrite each time a signal is waited, reduce the frequency of suppression of overwrite, and reduce the probability of erasing even with a small memory capacity.

  In particular, it may be about 3 minutes to 5 minutes. In this way, it is possible to prevent the possibility of overwriting the record at the time of the accident by continuous recording while stopping without forgetting to turn off the engine, and it is not an accident if normal traveling is resumed in a shorter time than this. Since it is considered that this is not a serious accident, the overwrite control works excessively, and it is possible to prevent the storage area from being filled with the video in which the overwrite is suppressed, and there is little risk of squeezing the recordable area of continuous recording. it can. In particular, it is more preferable to combine the configuration of (l) described later.

  In addition, when the vehicle stops, but the stop does not continue for a predetermined time, the suppression of the overwrite on the recorded video of the continuous recording for a predetermined time before and after the time when the stop is started is not performed. Good. Moreover, it is good to set it as the structure of (e) which is not equipped with the structure of (c).

(F) When the power of the drive recorder 1 is shut off, at least at the time of starting the stop before the shut off of the power immediately before the shut off of the power or at the time of the predetermined stop state before the shut off of the power It is preferable to have a function to suppress overwriting of the recorded video of the continuous recording including any one time point.

It is important to take measures to reduce the possibility of erasing the recording at the time of an accident etc. by overwriting the continuous recording by stopping for a long time without stopping the engine at the time of an accident etc., but actually the engine is stopped even at the time of an accident It seems that there are more cases to stop / park. In this case, the event recording may be performed before the engine is stopped, but in the case of a configuration without the event recording function or when the event recording is not determined because it is not determined as an event, etc., an accident There is a possibility that the video in the event of continuous recording may be erased by overwriting in the running after processing, but in this way it is possible to prevent itself like this, and more reliably record the video in the event of an accident etc. It can be done. In particular, when the power supply of the drive recorder 1 is supplied from a vehicle and the power supply from the vehicle is shut off when the engine of the vehicle is stopped, the recording before the stop of the engine is stored each time. become. In particular, for suppression of overwriting, for example, a dedicated folder may be provided and overwrite recording may be performed. Further, as “including the time point of 1”, for example, it is preferable to set a predetermined time before and after the time point of 1.
As a configuration example of the above (f), for example, when the power of the drive recorder 1 is shut off after the vehicle has stopped, it is preferable to perform the overwrite suppression processing on the recorded video of continuous recording for a predetermined time before and after the stop.

(G) It is preferable that a backup power supply capable of supplying power at the time of power shutoff is provided, and at the time of power shutoff, suppression of overwriting is performed by the backup power supply.
In this way, overwrite can be suppressed more reliably. Note that, in the case where the backup power supply is not provided or the backup power supply is provided but the capacity of the backup power supply is decreased, it is preferable to suppress the overwriting after the power is turned on.

  In particular, for example, the process (f) may be performed in this manner. For example, if there is a backup power supply, the backup power supply performs overwrite suppression processing and then the power supply is turned off, and if the backup power supply is not installed, or if the capacity of the backup power supply is low, the next power supply It is better to perform the overwrite suppression process after the startup is started. This is good because it needs to be processed after the power is shut off.

(H) If the location determined by the GPS receiver 24 (FIG. 4) is a preset location, a function may be provided that does not suppress the overwriting.
For example, there are many cases where it is unnecessary to record an accident at a place where you usually park well, such as a parking lot at home or at work, so for example, a place where such recording is unnecessary is set in advance. You should not make it. As a result, it is possible to reduce the probability that a necessary image, such as a record at the time of an accident, will disappear due to overwriting. The setting of the place where the overwrite suppression process is not performed may be, for example, storing and setting the position when an instruction such as a button operation is input at the place. In particular, for example, the configuration of (h) may be provided in the configuration of (f).

(I) In the case where the vehicle is stopped and traveled again after the vehicle has stopped as the predetermined stopping state, and the time of the re-stoping becomes equal to or longer than the predetermined time, the vehicle becomes the predetermined stopping state The overwriting may be suppressed for the video of continuous recording before and after the stop and the video of continuous recording before and after the restop.
In this way, when the car is moved to a safe place after the accident, the picture at the time of the accident and the picture when moved to the safe place can be stored and stored more reliably.

More specifically, for example, in continuous recording, when the vehicle is stopped, recording data of continuous recording for a predetermined time before or after that time or a recording data file including it is temporarily stored, and then the vehicle travels and is stopped again. If the stopping time is more than the predetermined time, the recording data of the predetermined time before or after the re-stop or the recording data file including the same, the recording data temporarily stored or the recording data file including the specific data, the specific folder The storage area may be moved or copied and stored in any of the specific storage media. The temporary storage may be erased when the traveling is resumed at a predetermined speed or more.
Not only may processing be performed until a stop before the stop for a predetermined time or more, the same overwrite suppression may be performed up to the second and third before the stop.

(J) As the predetermined stopping state, the vehicle is stopped for a predetermined time or more, and the time is stored each time the vehicle is stopped, and when the stopping continues for the predetermined time or more, the time and the time Further, it is preferable to suppress the overwriting of the images of the continuous recordings stored for a predetermined time before and after the stored stop time up to the predetermined time.
In this way, for example, even if the vehicle is moved to a safe place after the accident, even if the vehicle is stopped several times, the image at the time of the accident and the image when the vehicle is stopped a plurality of times are more reliable Can be stored in memory. In addition, since the time is stored, the required temporary storage capacity is smaller than in the configuration in which the video data is temporarily stored for each stop, and the cost increase can be suppressed easily.

The predetermined number may be the number of times or time. For example, it may be four times, for example, five minutes. It is preferable to set both conditions of time and number of times. For example, it may be 4 times and 5 minutes.
The time may be an end time of the stop or a time during stop, but may be a start time of the stop. It is preferable to store the stop time of each time, and when there is a stop continuing for a predetermined time or more, the recordings before and after the start of the stop at the time of the stop before the predetermined time may be stored.
More specifically, for example, when the vehicle stops, the time at which the stop is started is stored each time the vehicle stops, and when the stop continues for a predetermined time or more, the start time of the stop and the start time of the stop up to a predetermined time before that It is preferable to move or copy continuous recording data in which recordings before and after a predetermined time are stored, or a continuous recording data file including it, to any one of a specific folder, a specific storage area, and a specific storage medium.

(K) When it is determined that the predetermined stop state is determined, the plurality of different points in time are determined as targets of overwrite suppression, and the overwrite is suppressed for the recorded video of the time including the point in time and the time It is good to do.
In this way, the storage capacity of the temporary storage is smaller and the cost increase can be suppressed easily and easily as compared with the configuration in which the video data at each time and before and after that is temporarily stored in the main memory such as RAM at each time. As a result, it is possible to more surely store and save the video at the time of the accident and the video related to it.

(L) The configuration is based on the condition that the stopping time is the predetermined time or more in the determination of whether the vehicle is in the predetermined stopping state, the vehicle stops, and the supply from the vehicle is continued before the stopping is continued for the predetermined time or more. When the power is shut off, it may be considered that the stopping has continued for a predetermined time or more.
If the engine is stopped immediately after the vehicle stops, continuous recording does not proceed any further and it will not be erased by overwriting while the vehicle is stopped, but starting the engine again to start traveling will start continuous recording, so overwrite It is better to save as there is a possibility that it will be erased.
For example, in the configurations of (d) to (k), when the vehicle stops and the power supply from the vehicle is cut off before the stop continues for a predetermined time or more, the stop processing is considered to be continued for a predetermined time or more It is good to be configured.

  Moreover, if it comprises like (l), it can be made easy to the structure which does not need to include the time in process of engine stop in stop time. In such a configuration, it is not necessary to perform processing for obtaining the stopping time at the end of the power supply or at the start of the power supply. For example, in order to determine the stopping time, it is not necessary to calculate the stopping time from the last recording time before stopping the engine and the time when the engine is started, for example, at the time of power supply.

(M) When the power supply from the vehicle is shut off, it is determined that the vehicle is in the predetermined stop state, and if the overwriting is to be suppressed, the backup power supply is used or the power is turned on next. It is good to process when the circuit starts.
If it is a drive recorder equipped with a battery, the operation may be stopped after storage processing with the battery, but there may be cases where the battery is not installed or the battery may be exhausted. It is better to process when it is inserted.
For example, when the power supply from the vehicle is shut off as in (m), it is considered that the stopping has continued for a predetermined time or more, and for example, in any of the configurations from (d) to (m) As a result of the determination, it is particularly preferable that the configuration of (i) is provided in the configuration in which the overwrite is suppressed.

(N) The vehicle stop may have a function of regarding the vehicle stop as continuing until the vehicle travels at a predetermined speed or more after the vehicle stops.
In this way, when the speed is less than the predetermined speed, it can be regarded as a stop and the configuration described above can be realized. In particular, the predetermined speed may be, for example, a speed of several kilometers per hour corresponding to traffic congestion. For example, as in the case of a traffic jam, it is possible to prevent a large number of overwrites from being suppressed when repeating to stop slightly after going a little. The predetermined speed may be user settable.

(O) Overwrite suppression is performed by storing video in any one of a predetermined folder, a predetermined storage area, and a predetermined storage medium, and the storage is set to overwrite prohibition or overwrite permission in advance, or the setting is changed. In the case of the overwrite permission, it is preferable that the probability that the memory be erased by the overwriting be lower than the overwriting of the continuous recording.
If it is clear in advance whether or not overwrite is permitted or not, it is preferable to set one from the beginning (for example, at the time of shipment) and to be able to change the setting if it is preferable to set it according to the user's usage. Even in the case of the overwrite permission, it is possible to more surely record an image at the time of an accident or the like by making the probability that the storage is erased by the overwrite lower than the overwrite of the continuous recording.

(P) A configuration including a constant recording function, and storing the predetermined folder, the predetermined storage area, or the predetermined storage medium in a different folder, storage area, or storage medium from the constant recording and event recording It is good to do.
In this way, it is possible to reduce the effects of constant recording and event recording. In addition, it is possible to reduce the impact on constant recording and event recording. And, search becomes easy.

(Q) A continuous recording function and an event recording function may be provided, and the continuous recording and the event recording may be continuously performed even while the vehicle is stopped.
In this way, for example, it becomes a complement when it disappears due to a drop or overwrite. In addition, when used in combination with continuous recording and event recording, the reliability of recording and storage at the time of an accident etc. is further enhanced.
In addition, about another structure and an effect, in the range which does not produce contradiction, it is the same as that of another Example.

  Although the specific examples of the present invention have been described in detail as in the examples, the specific examples only disclose an example of the technology included in the claims. It goes without saying that the scope of the claims should not be interpreted limitedly by the configuration, numerical values and the like of the specific example. The claims encompass variously modified, changed, or combined as appropriate techniques using known techniques and knowledge of those skilled in the art.

The illustrated configurations can basically be combined arbitrarily, and it is preferable to combine a plurality of configurations without causing a contradiction. When combining, it is possible to combine the terms by exerting the ordinary creative ability of the person skilled in the art based on the idea of each configuration. When the components described in each configuration have the same name, the components with the same name may be configured as different elements, but may be configured as the same element. For example, “continuous recording function” is configured as n continuous recording functions such as “first continuous recording function”... “N-th continuous recording function” as a continuous recording function different for each configuration. However, some or all of them may have the same continuous recording function. Further, for example, in the “predetermined stop state”, for example, those described in each configuration may be separately determined, and for example, overwrite may be suppressed for different recording targets, but those described in each configuration At least a part or all of the recording targets may be determined in combination to suppress overwrite on the same recording target.
The components described in the respective embodiments, and the components to which the components and the concept described in the means for solving the problems are applied may be arbitrarily combined and used as long as no contradiction arises.

DESCRIPTION OF SYMBOLS 1 drive recorder 2 main body case 8, 9 push button 13 CCD camera 15 acceleration sensor 181 insertion port 181A LED
24 GPS receiver 30 controller 311 SD card reader 32 database 35 computer 361 SD card reader writer 45 monitor

Claims (11)

In a recording apparatus provided with a function of overwriting and recording an image captured in a vehicle on a recorded image,
A function of suppressing the overwriting according to the state of the vehicle;
An event recording function for recording while suppressing the overwriting;
A recording apparatus comprising: The recording apparatus according to claim 1, wherein the function of suppressing the overwriting suppresses the overwriting when the vehicle is in a predetermined stop state. The recording apparatus according to claim 1 or 2, wherein the recording by the event recording function is performed using a recording area used for the overwrite recording. The recording apparatus according to claim 1 or 2, wherein the recording by the event recording is performed using a recording area different from the recording area used for the overwrite recording. The recording apparatus according to claim 1, wherein the function of suppressing the overwriting suppresses the overwriting when it is detected that an impact of the vehicle is equal to or greater than a predetermined threshold. The method according to claim 5, wherein the function of suppressing the overwriting suppresses the overwriting when it is detected that an impact in any of three axial directions is greater than or equal to the predetermined threshold. Recording device. The recording apparatus according to claim 5, wherein the function of suppressing the overwriting suppresses the overwriting even when the power is supplied after the power of the recording apparatus is turned off. The recording apparatus according to claim 6, wherein the function of suppressing the overwriting cancels the suppression of the overwriting when the traveling of the vehicle is started during the suppression of the overwriting. The event recording function is characterized in that instead of performing recording while suppressing overwriting of the recorded video, recording according to the detection of the impact is performed when not suppressing the overwriting. Item 9. The recording device according to any one of items 5 to 8. It has a continuous recording function,
The recording apparatus according to any one of claims 1 to 9, wherein the overwrite recording is performed on a recorded video of continuous recording. The program for making a computer implement | achieve the function of the recording device of any one of Claims 1-10.

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