JP2016100672A - Recording apparatus and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: 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 device or the like for recording video in a vehicle.

  2. Description of the Related Art Conventionally, a recording apparatus that records video in a vehicle is known. For example, a drive recorder is known as a recording apparatus that captures and records a video around a vehicle inside or outside the vehicle as a video in the vehicle (see, for example, Patent Document 1). For example, when a vehicle is involved in an accident or an accident occurs, the video by the drive recorder is useful for investigating the cause of the accident by playing back the recorded video.

  Conventional drive recorders have an event recording function that records video for several tens of seconds before and after the occurrence of an event such as the occurrence of a predetermined impact, but recently due to the price reduction of recording media that record video, etc. More and more drive recorders have a constant recording function. For example, drive recorders that record continuously continuously while a vehicle is running are known, and such drive recorders always record, including images at the moment when an event such as an accident occurs, as well as other images. Therefore, there is no loss of recording, but a large-capacity image storage memory is required. Since it is difficult to replace with a new memory card when the memory capacity is full, always record until the capacity of the recording medium, such as an SD card, is almost full. The video is deleted and the current video is overwritten.

JP 2013-235395 A

The disadvantage of continuous recording is that it is not the video at the moment when an event such as an accident occurs, but video that does not need to be recorded is recorded and overwritten on the recorded video. There is a possibility.
For example, the image at the time of the accident may be overwritten while the other party is rescued, the person injured, talking to the other party, etc. without turning off the engine at the time of the accident, or the previous day's running image needs to be saved If there is, if you forget it and start the engine the next day with the engine starter, the previous day's image will be overwritten during idling.
The main purpose of the drive recorder is to record accidents. However, if you encounter an accident and want to keep a recorded image, you will lose the accident record by overwriting unless you stop continuous recording or save the image separately. .

  Therefore, the present invention has been made in view of the problems of such a conventional drive recorder, and the moment when an event such as an accident occurs in a recording device that records the current video by overwriting the recorded video. It is an object of the present invention to provide a recording apparatus that suppresses the possibility of erasing the video.

(1) In a recording apparatus having a function of overwriting and recording a video captured in a vehicle on a recorded video, a function of suppressing the overwriting when the vehicle is in a predetermined stop state may be provided.
In this way, it is possible to suppress the possibility that the video at the moment when an event such as an accident occurs will be erased. For example, it is possible to suppress a possibility that an image at the moment when an event such as an accident occurs is erased without turning off the power of the recording apparatus.

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

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

The predetermined stop state may be a state where the vehicle has stopped for a predetermined time, for example, as described later (4). In this way, it is possible to suppress the possibility that the video at the moment when an event such as an accident has occurred will be erased when the stationary state exceeding the predetermined time continues.
As suppression of overwriting, for example, (7) to (9) and (13) described later may be used. In particular, it is better to stop overwriting as suppression of overwriting.

  Further, when the vehicle is not in the predetermined stop state, it is preferable to provide a state in which the overwriting suppression is not executed, and particularly when the vehicle is not in the predetermined stop state, the overwriting suppression is not executed. . In this way, the video at the moment when the event such as an accident occurs can be recorded more reliably, and the possibility that the video at the moment when the event such as an accident occurs will be erased can be suppressed. Both can be balanced with a better balance.

(2) It is preferable that a continuous recording function is provided, the overwriting is performed on a recorded video of continuous recording, and the function for suppressing the overwriting is configured by suppressing continuous recording.
In this way, it is possible to suppress the possibility that the recorded video of continuous recording at the moment when an event such as an accident occurs due to continuous recording will be erased.

  For continuous recording, video should be recorded continuously over a certain period of time, but in particular, it should be recorded without a causal relationship with the occurrence of the event, especially regardless of the occurrence of the event. You should do it. In particular, continuous recording should be continuous recording as a general rule when power is supplied to the recording device. In this way, recording at the moment when an event such as an accident occurred is always recorded. There is a remarkable effect that it is possible to suppress the possibility that the constantly recorded video will be erased.

  As the continuous recording, for example, when the recording device has an event recording function, it is preferable to continuously record over a time longer than the recording time by the event recording function. In this way, overwriting is also suppressed for video that has been recorded by continuous recording, and the possibility of erasing the recorded video of continuous recording at the moment when an event such as an accident occurs can be suppressed. If the video recording due to the event was not recorded due to an impact that is not considered as an event, the possibility of being able to check the video at the moment of the event such as an accident by the continuous recording video can be increased, and the event recording function Even when video is recorded, the remarkable effect that the situation before and after the event such as an accident can be confirmed for a longer time by the video of continuous recording recorded for a longer time than the video by the event recording Play.

(3) An event recording function may be provided so that recording by the event recording function can be performed while the overwriting is suppressed.
In this way, even if an event such as an accident occurs while overwriting is suppressed, recording by the event recording function will be performed, and an event such as an accident has occurred more reliably. It is possible to suppress the possibility that the instantaneous video will be erased. In particular, since overwriting is suppressed when the vehicle is in a predetermined stop state, it is possible to suppress the possibility that an image of the moment such as the accident is erased more reliably when an accident occurs when the vehicle is stopped. Since there may be accidents while the vehicle is stopped, it is desirable to record with the event recording function.

In particular, if the video recorded by the event recording function is configured not to be overwritten, the video at the moment of an accident or the like can be more reliably prevented from being erased.
As a configuration that enables recording by the event recording function while overwriting is suppressed, for example, a signal from a sensor or switch that detects an event such as various accidents is acquired, and the signal is generated, for example, by a predetermined event. In a case where a state where the determination can be made is shown, it is preferable that a video for a predetermined time before and after the determination is made be recorded as a video by event recording. For example, when the sensor value exceeds a predetermined threshold or when the switch is detected to be pressed, the recording may be performed only before and after the trigger is issued.

(4) The predetermined stop state may include a state where the vehicle has stopped for a predetermined time.
In this way, it is possible to prevent the video in the stopped state from being overwritten and recorded on the recorded video recorded during traveling. Therefore, it is possible to suppress the possibility that the video at the moment when an event such as an accident occurs is erased by the video that is stopped.

(5) It is preferable to determine whether or not the vehicle may have been in an accident and to have a function of suppressing the overwriting when there is a possibility of having an accident.
In this way, it is possible to more reliably suppress the possibility that the video at the moment when an event such as an accident occurs will be erased.

  For example, when an impact greater than a predetermined threshold is detected, failure diagnosis information such as an ECU provided in the vehicle acquired from a diagnosis system such as OBD indicates a failure. In the case of information, it is preferable to detect that an airbag or the like has been operated, or to recognize an image and detect an image corresponding to an accident. Further, for example, the following (6) may be used as a determination as to whether the vehicle may have been in an accident.

(6) The predetermined stop state may be configured to include that the vehicle has stopped within a predetermined time after detection of an impact.
In this way, it is possible to more reliably suppress the possibility that the video at the moment when the accident occurs will be erased. In the case of an accident, it has been found that, in general, after an impact is detected, an action is taken to stop within a predetermined time. In particular, the predetermined time may be a case where the operation stops within several tens of seconds after the impact is detected.

(7) As the suppression of the overwriting, the recording is stopped, the recording method is changed so as to increase the time until the overwriting, and the capacity required for the recording per time by the recording of the video is reduced. In addition, a function of performing at least one of reducing the frame rate of the video to be recorded and reducing the number of pixels of the video to be recorded may be provided.
In this way, it is possible to reduce the possibility that the video at the moment of occurrence of an event such as an accident included in the recorded video will be erased by overwriting.

In particular, in the unlikely event that the memory used for video recording is saved, recording may be continued, or processing may be performed so as to increase the time until overwriting.
As a configuration for reducing the frame rate, in particular, when not suppressing, the video is recorded at several tens of frames / second, while when suppressing, between the two, such as about several frames / second (for example, 1 fps), It is better to change the number of frames per second. The capacity necessary for recording per time by recording the video and the number of pixels of the video to be recorded may be changed so that the number of digits changes.

(8) As suppression of the overwriting, it is preferable not to disappear by overwriting.
In this way, the video at the moment when an event such as an accident included in the recorded video does not disappear due to overwriting, and the video at the moment when the event such as an accident occurs is more reliably deleted. Fear can be eliminated.
For example, the following (9) may be used as a configuration for preventing overwriting.

(9) The suppression of the overwriting may be configured to perform at least one of prohibiting overwriting, copying to an area that is not an overwrite area, or moving to an area that is not an overwrite area.
In this way, it is possible to suppress the possibility that the video at the moment when an event such as an accident occurs will be erased more reliably.

  As a configuration for prohibiting overwriting, for example, a video to be recorded may be recorded as one file in a predetermined time unit, and an overwrite prohibiting attribute may be given when file generation is completed as an attribute of the file. As a configuration for copying to an area that is not an overwriting area, for example, an overwritable area and an overwriting-prohibited area may be divided, and video data recorded in the overwritable area may be copied to the overwriting-prohibited area. As a configuration for moving to an area that is not an overwriting area, for example, an overwritable area and an overwriting-prohibited area may be divided, and video data recorded in the overwriting-enabled area may be moved to the overwriting-prohibited area. For example, the overwritable area and the overwritable area may be different folders, different drives, or different file systems.

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

(10) When the vehicle is in a predetermined running state, the overwriting suppression may be terminated.
In this way, it is possible to more reliably record an image of a situation where 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 running state, it is preferable to return to the video recording state before starting overwriting suppression.
The predetermined traveling state may be a state that is not the predetermined stopping state, and particularly a state where the vehicle has started traveling.

(11) The predetermined stop state is that the vibration state acquired from the vibration detecting means is a predetermined state, 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 information may be determined based on at least one of a predetermined state and speed information acquired from the GPS receiving unit in a predetermined state. For example, any predetermined state may be a state that can be taken in an actual stop state, and a state that cannot be taken especially when the vehicle is running. Further, for example, a state actually measured in a stopped state may be stored, and it may be determined whether the state is a predetermined state based on whether or not it matches the stored pattern. As the predetermined state of the vibration state acquired from the vibration detection means, for example, the vibration characteristic at the time of stopping different from the vibration characteristic at the time of traveling is stored, and when the vibration characteristic at the time of stopping coincides with the stopping state, Judgment should be made.
In particular, it may be configured to make a determination based on at least any two of these. In this way, it can be more reliably discriminated whether the vehicle is in a predetermined stop state.

(12) A function of suppressing overwriting of a predetermined range of video including a video currently being recorded based on an operation from the user is provided, and even if the power is cut off, the video in the predetermined range before the power is cut off It is good to have a function to suppress overwriting.
In this way, power is supplied again even if the recording device is turned off due to an accident or by turning off the engine without performing an operation to suppress overwriting of the video of the accident at the time of the accident. In this case, it is possible to suppress overwriting of a predetermined range before power-off at that time.

(13) When at least one of rescue of the other party, personal injury, talking with the other party, or the like is detected, a function of suppressing the overwriting may be provided.
In this way, it is possible to suppress the possibility that the video at the moment when an event such as an accident occurs will be erased more reliably.

  When at least one of rescue of the other party, personal injury, talking with the other party is detected, for example, rescue of the other party, personal injury, talking with the other party, etc. It may be immediately after detecting at least one of the above, but it may be after a predetermined time has elapsed, for example, at least one of rescue of the partner, injury of the person, talking with the partner, etc. After detecting these, it may be after these are no longer detected. In this way, the situation of rescue and discussion is recorded without being suppressed, but since these times are relatively short, the recorded video at the time of the accident is overwritten and erased Can be suppressed. The determination that the person is injured, talking with the other party, etc. is provided with a function of recognizing the person in the image captured by the vehicle by image recognition processing such as face recognition. It may be performed based on whether or not the current time is a predetermined pattern stored in advance. For example, when two or more persons are recognized over a predetermined time or when it is repeated that the same person is not recognized within a predetermined time, overwriting may be suppressed.

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

  For example, the following (15) to (23) are particularly preferable for the purpose of more reliably storing and storing recorded data at the time of the accident and before and after the accident. These focus on immediately stopping the vehicle, especially when the vehicle has an accident or when witnessing an accident to rescue the vehicle. For example, it is possible to solve the problem that the video that has been recorded by overwriting disappears in continuous recording, and the problem that event recording is not stored and saved, for example, when the sensor does not detect or when the button is not operated.

(15) It is preferable to have a function of determining whether or not it is immediately after the accident and suppressing the overwriting when it is determined that it is immediately after the accident.
In this way, it is possible to more reliably store and save images before and after the accident. As a more specific configuration, for example, (17) and (18) may be used.

(16) After the accident, it may be determined whether or not the vehicle has been moved to a safe place, and if it is determined that the car has been moved to a safe place after the accident, a function of suppressing the overwriting may be provided.
In this way, it is possible to more reliably store and save images before and after the accident. As a more specific configuration, for example, (19) may be used. In this case, it is preferable that suppression of overwriting is performed on an image including a time point before and after the accident. Whether or not it is a safe place may be determined based on whether or not the area information of the safe place is stored in advance and 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 outside this area. Especially on roads, it is recommended that the area is an unsafe place.

(17) A continuous recording function is provided, and the predetermined stop state includes a stop state, and when the vehicle enters the predetermined stop state, recorded images of continuous recording for a predetermined time before and after the vehicle It is preferable that the overwriting is suppressed.
When an accident or the like occurs like the point of interest described above, the vehicle stops immediately after that. Therefore, if you suppress overwriting, such as storing video before and after stopping in a dedicated folder, etc., there is a high possibility that recordings such as accidents are recorded, so the recorded data before and after the accident is stored and saved more reliably. be able to.

  As can be said from the above (1) to (14), particularly in (15) and after, as a suppression of overwriting, for example, recorded data of recorded video (imaging data) or a recorded data file including the same is stored in a specific folder. The data may be moved or copied to a specific storage area or a specific storage medium. In order to suppress overwriting, it may be moved or copied to an overwriting-prohibited folder or the like. However, for example, it is practical to use a dedicated folder or the like with overwriting permission because the vehicle is frequently stopped when traveling in the city. . In this way, by suppressing overwriting in the method of moving or copying to a dedicated folder etc. with overwrite permission, the data amount in the dedicated folder etc. can be made smaller than the data amount of continuous recording. If the same storage capacity as recording is used, the probability of being erased by overwriting is low, which is beneficial.

  For example, when there is an event recording function and a continuous recording function, the predetermined time before and after is preferably 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 of a range starting from several tens of seconds before the stop and several minutes before and ending from several tens of seconds to several minutes after the stop. In particular, it is better to extend the overwriting suppression time before stopping than after stopping, and it is preferably about 1 to 3 minutes before and about several tens of seconds to 1 minute after. If it is too long, the memory capacity will increase and the possibility of being erased by overwriting etc. will increase, but if you do this, it will not be necessary to increase the memory capacity, the possibility of being erased will be reduced, and accidents will also occur The process at the time of the accident and the process after the accident are fully included, and the contents at the time of the accident can be recorded reliably.

  The continuous recording may be configured to store the continuously recorded video in units of files every predetermined time. In this configuration, the recorded video is created in units of files every predetermined time and is overwritten. In particular, when the configuration (17) is provided, the predetermined time may be about 1 minute. Thus, when the file unit is set to about 1 minute, for example, it can be easily processed as a file at the time of stopping, a file before 1 to 2 and a file after one.

(18) A function including a continuous recording function, and recording the continuous recording as a suppression of the overwriting in another storage area according to whether the vehicle is in the predetermined stop state, and performing the overwriting recording in each storage area It is good to have.
In this way, even if the vehicle has been in a predetermined stop state for a long time, an image that is not in a predetermined stop state (for example, a moving image) is overwritten with an image that is in a predetermined stop state. Can be suppressed. Continuous recording when the vehicle is in a predetermined stop state should be overwritten because of memory capacity limitations.

Another storage area may be a storage area managed separately, for example, a different folder or a different drive.
As “depending on whether or not the vehicle is in a predetermined stop state”, it may be “in a case where the vehicle is in a predetermined stop state and in a case where the vehicle is not in a predetermined stop state”. As another storage area, for example, a storage area for a predetermined stop state and a storage area for a predetermined stop state may be provided. “Depending on whether or not the vehicle is in a predetermined stop state” may be “as soon as whether or not the vehicle is in a predetermined stop state” or “changed in whether or not the vehicle is in a predetermined stop state” You don't have to say "sometimes." In particular, when the continuous recording function is configured to generate a file in units of files at predetermined time intervals (for example, 1 minute), for example, when the state is changed from a state that is not a predetermined stop state to a state that is a predetermined stop state, Alternatively, when changing from a predetermined stop state to a non-predetermined stop state, a process of switching the storage area of the file storage destination may be performed immediately. Until the recording of the recording unit time (for example, 1 minute) is completed, the recording of the file unit of the file being recorded is completed without switching the storage area of the file storage destination, and in a predetermined stop state. It is preferable to determine whether or not there is a file storage destination storage area by determining whether or not the vehicle is in a predetermined stop state.

  For example, continuous recording may be divided into traveling and stopping, and continuous recording may be recorded in separate folders while traveling and stopped, and overwritten in each folder. In this way, even if the engine is stopped for a long time without stopping the engine, it is possible to prevent the recording during traveling from being overwritten and erased while the vehicle is stopped, and it is possible to record an accident while the vehicle is stopped. It is better to overwrite continuous recording while the vehicle is stopped due to memory capacity limitations.

(19) A continuous recording function is provided, and the predetermined stop state includes a state in which the vehicle has stopped and stopped for a predetermined time, and when the vehicle has entered the predetermined stop state, A configuration may be adopted in which the overwriting is suppressed for a video that has been recorded continuously for a predetermined time before and after.
In this way, it is possible to prevent overwriting from being suppressed every time the vehicle stops, and to reduce the probability of erasing even when the video recording capacity is small, such as a small memory capacity.

  In particular, the time during which “the vehicle stops for a predetermined time” in the “state in which the vehicle has stopped and the vehicle has stopped for a predetermined time” may be set to a time that exceeds the stop time for waiting for a general signal. It is better not to suppress overwriting during the general stop time of waiting for a signal, but to suppress overwriting when the vehicle stops for a relatively long time. In this way, it is possible to prevent overwriting from being suppressed every time a signal is waited for, to reduce the frequency of overwriting suppression, and to reduce the probability of erasing even with a small memory capacity.

  In particular, it may be about 3 to 5 minutes. In this way, it is possible to prevent the possibility that the recording at the time of the accident will be overwritten by continuous recording while the vehicle is stopped because the engine is forgotten. Also, if normal driving is resumed in a shorter time than this, it is not an accident or a serious accident, so overwriting suppression works excessively and the storage area is filled with video with overwriting suppressed. The possibility of squeezing the recordable area of continuous recording can be reduced. In particular, it is better to combine the configuration of (26) described later.

  In addition, if the vehicle has stopped but has not stopped for a predetermined time, the overwriting of the recorded video of continuous recording for a predetermined time before and after the time when the stop was started is not performed. Good. Further, the configuration of (19) which does not include the configuration of (17) is preferable.

(20) Provided with a continuous recording function, when the power of the apparatus is cut off, immediately before turning off the power, when stopping before the power is turned off, or the predetermined stopping state before turning off the power It is preferable to provide a function of suppressing the overwriting with respect to the recorded video of the continuous recording including at least one time point.

Although it is important to stop the engine for a long time without stopping the engine at the time of an accident, etc., it is important to reduce the possibility that the recording of the accident will be erased by overwriting the continuous recording. It seems that there are more cases of stopping / parking. In this case, it is sufficient that event recording is performed before the engine is stopped. However, in the case of a configuration without an event recording function or when event recording is not performed because it is not determined as an event even if it has an event recording function, There is a possibility that the video at the time of accident of continuous recording may be erased by overwriting in the run after processing, but if this is done, such a situation can be prevented, and the video at the time of the accident etc. can be recorded more reliably. Can. In particular, if the power supply of this apparatus is supplied from a vehicle and the power supply from the vehicle is shut off, for example, when the engine of the vehicle is stopped, the recording before the engine is stopped is stored every time. Become. In particular, to suppress overwriting, for example, a dedicated folder may be provided and overwritten. In addition, “including the time point 1” may be a predetermined time before and after the time point 1, for example.
As a configuration example of the above (20), for example, when the power of the recording apparatus is shut off after the vehicle stops, overwriting suppression processing may be performed on 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 supply is shut off may be provided, and when the power supply is shut off, the overwriting is suppressed by the backup power supply.
In this way, it is possible to more reliably suppress overwriting. In addition, in the case of a configuration without a backup power source or a backup power source but the capacity of the backup power source is low, it is better to suppress the overwriting after the next startup when the power is turned on. .

  In particular, for example, the process (20) is preferably performed in this way. For example, if there is a backup power supply, turn off the power after overwriting suppression processing with the backup power supply, and if the backup power supply is not installed or if the backup power supply capacity is low, then the power supply It is advisable to perform overwriting suppression processing after startup when is entered. Since it is necessary to process after the power is cut off, this is preferable.

(22) A positioning function may be provided, and the overwriting suppression may include a function that does not suppress the overwriting when the measured location is a preset location.
For example, there are many cases where it is not necessary to record accidents in places where parking is often done on a daily basis, such as parking lots at home or work. It is better not to. Therefore, it is possible to reduce the probability that necessary images such as accident records will disappear due to overwriting. The location where the overwriting suppression process is not performed may be stored and set, for example, when an instruction such as button operation is input at the location. In particular, for example, the configuration (22) may be provided in the configuration (20).

(23) A continuous recording function is provided, and the predetermined stop state includes a state in which the vehicle travels and stops again after the vehicle stops, and the vehicle has been stopped for the predetermined stop time. In this case, it is preferable to suppress the overwriting of the continuously recorded video before and after the stop and the continuously recorded video before and after the stop.
In this way, when the vehicle is moved to a safe place after the accident, it is possible to more reliably store and save the video at the time of the accident and the video when moved to a safe place.

More specifically, for example, in continuous recording, when the vehicle stops, the recording data of continuous recording for a predetermined time before and after or a recording data file including it is temporarily stored, and then the vehicle travels and stops again. If the stop time is longer than the predetermined time, the recorded data of the predetermined time before and after the stop of the vehicle or the recorded data file including the same, the temporarily stored recording data or the recorded data file including the specified data, the specified folder, the specified data It may be configured to move or copy and store in a storage area or a specific storage medium. The temporary storage may be erased when traveling is resumed at a predetermined speed or higher.
In addition to processing until one stop before the stop for a predetermined time or longer, the same overwriting suppression may be performed up to two or three before.

(24) A continuous recording function is provided, and the predetermined stop state includes a state in which the vehicle stop time is equal to or longer than a predetermined time, and stores the time each time the vehicle stops, and the stop is longer than the predetermined time If it continues, it is good to suppress the said overwrite about the image | video of the continuous recording memorize | stored for the predetermined time before and behind the time of the time and the stop time memorize | stored until the predetermined time.
In this way, for example, even if the vehicle is stopped multiple times when the vehicle is moved to a safe place after the accident, the video at the time of the accident and the video when the vehicle is stopped multiple times are more sure. Can be stored in memory. Further, since the time is stored, it is possible to reduce the cost increase easily because the storage capacity of the necessary temporary storage is smaller than the configuration in which the video data is temporarily stored for each stop.

The predetermined number may be the number of times or may be time. For example, it may be 4 times or 5 minutes, for example. It is good to set both conditions of time and frequency. For example, it may be 4 times and 5 minutes.
The time may be the stop end time or the stop time, but may be the stop start time. Each stop time is stored, and if there is a stop that continues for a predetermined time or longer, it is preferable to save a recording before and after the start of the stop at a predetermined stop.
More specifically, for example, when the vehicle stops, the time at which the vehicle starts to stop is stored every time the vehicle stops. When the vehicle stops for a predetermined time or longer, the stop time of the vehicle and the start time of the vehicle until a predetermined time before that stop The continuous recording data in which recordings for a predetermined time before and after are stored, or the continuous recording data file including the recording data may be moved or copied to a specific folder, a specific storage area, or a specific storage medium.

(25) A continuous recording function is provided, and when it is determined that the vehicle is in the predetermined stop state, the plurality of different time points are determined as suppression targets for overwriting, and the time including the determined time point and the time before and after the determined time point is recorded. The overwriting may be suppressed for the video.
In this way, it is possible to easily suppress the increase in cost as compared with the configuration in which the time points and the video data before and after the time points are temporarily stored in the RAM or the like, because the storage capacity of the necessary temporary storage is small. It is possible to store and save the video at the time of the accident and the video at the time related thereto more reliably.

(26) The configuration is based on the condition that the stop time is not less than a predetermined time in the determination of whether the vehicle is in the predetermined stop state, and is supplied from the vehicle before the vehicle stops and the stop continues for the predetermined time or more. When the power is cut off, it is preferable that the vehicle is regarded as having stopped for a predetermined time or more.
If the engine is stopped immediately after the vehicle stops, continuous recording will not proceed any further, so it will not be overwritten while it is stopped, but if the engine is started again and running starts, continuous recording will start. It is better to save the file because it may be erased.
For example, in the configurations of (18) to (25), if the vehicle stops and the power supply from the vehicle is cut off before the stop continues for a predetermined time or longer, it is assumed that the stop has continued for a predetermined time or longer and the storage process is performed. It may be configured.

  In addition, with the configuration (26), it is possible to facilitate the configuration in which the stoppage 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 stop time at the end of power supply or at the start of power supply. For example, in order to determine the stop time, for example, when power is supplied, there is no need to perform a process for obtaining the stop time from the last recording time before the engine stop and the time at the engine start.

(27) When the supply power from the vehicle is cut off, it is determined that the vehicle is in the predetermined stop state, and when the overwriting is suppressed, the backup power is processed or the power is turned on next. It may be processed when the circuit is activated.
If the recording device (eg drive recorder) is equipped with a battery, you can save the battery and then stop the recording device (eg drive recorder), but if the battery is not installed or if the battery is exhausted In some cases, it is better to process the next time the power is turned on.
For example, when the power supply from the vehicle is cut off as in (27), it is considered that the vehicle has stopped for a predetermined time or longer. For example, in any configuration of (18) to (27), the vehicle is stopped for a predetermined time. As a result of the determination, it is particularly preferable to provide the configuration (23) in the configuration for suppressing overwriting.

(28) The stop may have a function of assuming that the stop is continued until the vehicle travels at a predetermined speed or higher after the vehicle stops.
In this way, when the speed is lower than the predetermined speed, it is considered that the vehicle is stopped and the above-described configuration can be realized. In particular, the predetermined speed may be a speed of about several kilometers per hour corresponding to a traffic jam, for example. For example, when it is repeatedly stopped a little, such as in a traffic jam, it is possible to prevent a large number of overwrites from being suppressed. More preferably, the predetermined speed can be set by the user.

(29) The overwriting is suppressed by storing the video in any one of a predetermined folder, a predetermined storage area, and a predetermined storage medium, and the storage is preset in prohibition of overwriting and overwriting, or When the setting can be changed and overwriting is permitted, the probability that the memory is erased by overwriting may be set lower than the overwriting of continuous recording.
If it is clear in advance whether overwriting is prohibited or permitted, it is preferable to set it to either from the beginning (for example, at the time of shipment), and to change the setting if it is better to set it according to the user's usage. Even in the case of overwriting permission, it is possible to record the video at the time of an accident more reliably by lowering the probability that the memory is erased by overwriting than the overwriting of continuous recording.
The video may be a recorded video.

(30) A structure having a constant recording function, and storing the predetermined folder, the predetermined storage area, or the predetermined storage medium in a folder, storage area, or storage medium different from the constant recording and event recording Good.
In this way, it is possible to reduce the influence from constant recording and event recording. In addition, the influence on continuous recording and event recording can be reduced. 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 when the vehicle is stopped.
In this way, for example, it becomes a complement when it disappears due to missing or overwriting. In addition, when used together with continuous recording and event recording, the reliability of recording and saving at the time of an accident is increased.
The configurations described in the items (1) to (31) described above can be arbitrarily combined basically, and a plurality of terms may be combined within a range where no contradiction occurs. When combining, each item can be combined based on the idea of each item by demonstrating the ordinary creative ability of those skilled in the art. When there are components having the same names in the components described in the respective sections, the components having the same names may be configured as different elements, but may be configured as the same elements. For example, “continuous recording function” is configured as n continuous recording functions such as “first continuous recording function”... “Nth continuous recording function” as different continuous recording functions for each item. However, some or all of them may be the same continuous recording function. In addition, for example, the “predetermined stop state” may be determined separately for each item, for example, and overwriting may be suppressed for different recording targets. It is preferable that the determination is made by combining at least a part or all of the same recording target and overwriting is suppressed.

With regard to (1) to (31), for example, it is possible to verify an image of an accident or the like more reliably even in a configuration having a continuous recording function and an event recording function. In particular, the recorded video by the event recording function is recorded by the continuous recording function, such as a configuration that has the function of overwriting the recorded video by the event recording function with the recorded video by the continuous recording function. In the case where a configuration for recording with higher priority than the above is provided, the effect is more remarkable.
(32) The functions of the recording apparatus described above may be configured as a program for causing a computer to realize the functions.

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

The embodiment of the present invention will be specifically described with reference to 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 a windshield of a vehicle, for example, via a mounting bracket 3.

The bracket 3 includes a holding ring that is externally attached to the substantially cylindrical main body case 2 and a substantially flat mounting plate 5 that circumscribes the holding ring. An end portion of the main body case 2 inserted and disposed in the holding ring of the bracket 3 is configured so that a substantially donut-shaped cap 4 can be screwed therein. If the cap 4 is screwed in with the rotation angle of the main body case 2 adjusted, the main body case 2 can be fixed to the bracket 3. If the rotation angle of the main body case 2 with respect to the bracket 3 is adjusted, the shooting range can be adjusted by changing the depression angle of the drive recorder 1.
The drive recorder 1 can be mounted on a front window or the like via the mounting plate 5 so that the lens 14 of the CCD camera 13 faces a predetermined direction (generally, the 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 to the side end surface of the main body case 2 that is substantially flush with the end of the screwed cap 4. Perforated. An insertion port 181 for inserting an SD card is provided on the opposite side end surface of the main body case 2. An LED (display unit) 181 </ b> A is disposed at a position adjacent to the insertion port 181. 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 dividing a substantially cylindrical shape into two vertically, are combined. On the surface of the back cover 2a, a holder 7 (FIG. 2) for rotatably holding the holder body 7a, push buttons 8 and 9 as operation means, and pilot lamp illumination blocks 10 and 11 are disposed. Yes. 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 main body 7a in FIG. In the holder 7, the acceleration sensor 15 can be arranged in the horizontal direction as the reference position in accordance with the rotation of the holder body 7 a. Acceleration, which is a measured value of a physical quantity that reflects the state of the vehicle such as an impact that has been applied, is measured by the acceleration sensor 15.

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

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

As shown in FIG. 4, the drive recorder 1 is electrically configured with a controller 30 as an example of a control unit as a center. Connected to the controller 30 are a CCD camera 13, an acceleration sensor 15, a GPS receiver 24, an SD card reader 311, and a database 32.
The control controller 30 is mainly configured by a microcomputer in which a CPU (not shown), a memory as a main body memory such as a flash ROM, ROM, and RAM as an example of a storage unit, a timer, and the like are incorporated in one chip.

  The ROM of the control controller 30 has 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 memory or an SD card, and an OS (Operation System). ) And other programs are stored.

The GPS receiver 24 is a receiver that detects the position information of the host vehicle at the current time in accordance with an instruction from the controller 30. The detection timing by the GPS receiver 24 is set every 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 control controller 30.
The CCD camera 13 is an imaging unit that captures a front landscape through the lens 14 and acquires imaging data. The CCD camera 13 inputs imaging data to the controller 30 via an interface unit 33 that can execute data compression and digital conversion.
The acceleration sensor 15 is a three-axis type sensor that detects acceleration and inclination in the directions of the three axes (X, Y, and Z), and inputs the detected values to the controller 30.
The SD card reader 311 reads and writes SD card data based on the control of the controller 30.

  The data recorded on the SD card by the control of the controller 30 includes imaging data (captured image) by the CCD camera 13, position data and velocity data by the GPS receiver 24, acceleration data by the acceleration sensor 15, and the like. . Each of these data is recorded in association with the recorded time. By such mutual association, it is possible to acquire position data, velocity data, and acceleration data from time to time in synchronization with reproduction of imaging data. Imaging data can also be recorded in synchronization with velocity data, position data, acceleration data, and the like.

  The database 32 is a non-volatile memory such as an EEPROM, for example, in the controller 30 or externally attached to 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 held in a stopped state is a predetermined time or more.

  When energization of the drive recorder 1 is started in response to the vehicle ignition being switched on, the setting information stored in the SD card is read out and copied to the main body memory (RAM), and the operation according to the setting information is started. The When 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 regarding settings such as a recording size, a frame rate, and image quality. The individual setting for each user needs to be generated using the personal computer 35 and stored in the SD card, and then the SD card needs to be 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.
When the drive recorder 1 is switched to the power-on state, the controller 30 reads the setting information copied to the main body memory (RAM) and also reads the stop state determination pattern stored in the database 32. The control controller 30 captures images according to the read setting information to acquire images, and as an example of a continuous recording function, the controller 30 continuously records captured images in the recording area of the SD card. The continuous recording is executed (S101). The drive recorder 1 always performs continuous recording in the power supply state except when the overwriting 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 the storage area is partitioned and managed.

  If the SD card is in the initialized state, the controller 30 performs recording (recording of imaging data) as shown in FIG. 6A. When the storage area of the SD card becomes full, the storage area of the master SD card is deleted as shown in FIG. The order of erasing at this time is from the storage area of the SD card in which the recorded image data is old (the image capturing timing is old), and the order is 1, 2, 3,... Delete the image data. The controller 30 records new image data as shown in FIG. 3C while erasing the old image data. By repeatedly executing such a recording operation, the captured images are continuously recorded.

  For example, as illustrated in FIG. 6A, when the vehicle ignition is switched off and the power supply is cut off with the imaging data recorded on the SD card up to the 14th block, the controller 30 When the vehicle ignition is switched on, the imaging data is continuously recorded from the 15th block of the SD card.

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

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

  The controller 30 uses the speed information acquired by the GPS receiver 24 during the temporary stop of continuous recording by the overwriting suppression function (S102: NO), and determines whether or not the vehicle has shifted to a predetermined running state. (S123). When the state is shifted to the predetermined running state (S123: YES), the stop of the continuous recording by the overwriting suppression function is canceled and the continuous recording is restarted (S124). In this example, as an example of the predetermined travel state, a state is set in which the speed information acquired by the GPS receiver 24 when the vehicle starts traveling is no longer the predetermined stop state due to, for example, exceeding 5 km / h. In the following description, this state is described as a predetermined traveling state. In this way, if continuous recording is resumed in response to the start of traveling of the vehicle, it is possible to more reliably record a traveling image in which an event such as an accident is likely to occur. On the other hand, if it is not the predetermined running state (S123: NO), the recording stopped state by the overwriting suppression function is held (S134).

  The above control is repeatedly executed until the power supply is stopped (S105: NO), and ends when the power is turned off (S105: YES). For example, when a power storage capacitor is provided and the power supply is cut off, the power stored in the capacitor is used to perform the recording end process and then control to stop all operations. .

  In determining the predetermined stop state or the predetermined traveling state, the controller 30 considers that the vehicle is stopped until the vehicle travels at a predetermined speed such as 5 km per hour after the vehicle stops. If it does in this way, when it is less than 5 km / h which is an example of a predetermined speed, it can consider that it is a stop and can determine a predetermined stop state and a predetermined driving state. For example, the predetermined speed may be a speed of several kilometers per hour corresponding to a traffic jam. For example, when it is repeatedly stopped a little, such as in a traffic jam, it is possible to prevent a large number of overwrites from being suppressed. More preferably, the predetermined speed can be set by the user.

  The imaging data recorded on the SD card can be browsed using a tablet computer or an installed personal computer installed with application software for the drive recorder 1. In the case of a personal computer or the like having a card slot, the recorded imaging data can be viewed by setting the SD card extracted from the drive recorder 1 in the card slot (see FIG. 7). The drive recorder 1 with the SD card still set can be taken out of the vehicle, connected to a personal computer or the like via a USB cable, and the image data recorded on the SD card can be viewed.

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

  The drive recorder 1 configured as described above has a function of suppressing overwriting when the vehicle is in a predetermined stop state. In this drive recorder 1, since it is possible to prevent the video in the stopped state from being overwritten and recorded on the recorded video (imaging data) recorded during traveling, the video at the moment when an event such as an accident occurs is recorded. 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 continuous recording with overwriting. On the other hand, if the overwriting suppression function is executed, an accident or the like may occur without turning off the power. It is possible to avoid the situation where the video at the moment when the event occurs is deleted.

  On the other hand, even if the vehicle stops, when the stop time does not reach a predetermined time such as 3 minutes and is not determined as the predetermined stop state, the overwriting suppression function is not enabled and continuous recording is continued. If this setting is adopted for the overwriting suppression function, the video at the moment when an event such as an accident occurs can be recorded with more certainty by continuous recording, and the event such as an accident occurs due to the overwriting suppression function. It is possible to suppress the possibility that the video at the moment of deletion will be erased. As described above, according to the overwriting suppression function, it is possible to achieve both recording and storage of video with a better balance.

  As in the drive recorder 1 of this example, the overwriting suppression function has a particularly remarkable effect in a configuration in which a newly acquired video is recorded by overwriting a recorded video by continuous recording. In particular, in the drive recorder 1 of this example that performs continuous recording in which recording is performed continuously while recording and overwriting and erasing the recorded video while power is being supplied, the overwriting suppression function has the most remarkable effect.

  In the drive recorder 1, a state where the vehicle has stopped for 3 minutes, which is an example of a predetermined time, is set as a predetermined stop state that triggers execution of the overwriting suppression function. According to the drive recorder 1, it is possible to suppress with high certainty the possibility that the video at the moment when an event such as an accident has occurred will be erased when the vehicle has stopped for a predetermined time.

  Further, the drive recorder 1 is configured not to execute the overwriting 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 that the video at the moment when the event such as an accident occurs will be erased. It is possible to balance both with a better balance.

In the drive recorder 1, the predetermined stop state is determined using the speed information acquired from the GPS receiver 24. 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, speed information based on position information acquired from the positioning means is a predetermined state such as 1 km / h or less, and speed information acquired from the GPS receiver 24 is 1 km / h, for example. It may be configured to determine whether or not the vehicle is in a predetermined stop state based on at least one of the following predetermined states. In particular, it may be configured to make a determination based on at least any two of these. In this way, it can be more reliably discriminated whether the vehicle is in a predetermined stop state.
For example, any of the above predetermined states may be a state that can be taken in an actual stop state, and may be a state that cannot be taken especially when the vehicle is running. Further, for example, a state actually measured in a stopped state may be stored, and it may be determined whether the state is a predetermined state based on whether or not it matches the stored pattern. As the predetermined state of the vibration state acquired from the vibration detection means, for example, the vibration characteristic at the time of stopping different from the vibration characteristic at the time of traveling is stored, and when the vibration characteristic at the time of stopping coincides with the stopping state, Judgment should be made.

  Note that the continuous recording may be configured to store the video of continuous recording in units of files every predetermined time. In this configuration, the recorded video is created in units of files every predetermined time and is overwritten. In particular, when the vehicle is in a predetermined stop state, the predetermined time is preferably about 1 minute in a configuration in which overwriting is suppressed with respect to recorded video of continuous recording for a predetermined time before and after the vehicle. Thus, when the file unit is set to about 1 minute, for example, it can be easily processed as a file at the time of stopping, a file up to one to two before, and a file after one.

  Further, as a suppression of overwriting, it is preferable to have a function of recording continuous recording in different storage areas depending on whether or not the vehicle is in the predetermined stop state, and performing the overwriting recording in each storage area. In this way, even if the vehicle has been in a predetermined stopping state for a long time, an image in a state that is not in the predetermined stopping state (for example, a moving image) is displayed as an image in a state in which the vehicle is in a predetermined stopping state. Overwriting can be suppressed. It is better to overwrite the continuous recording when the vehicle is in a predetermined stop state due to the memory capacity limitation.

  Another storage area may be a storage area managed separately, 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 employed, and continuous recording is recorded in the SD card storage area of the insertion slot 181 when the vehicle is in a predetermined stopping state. When the vehicle is not in a predetermined stop state, continuous recording may be executed in the storage area of the SD card in the insertion slot 182.

  As “depending on whether or not the vehicle is in a predetermined stop state”, it may be “in a case where the vehicle is in a predetermined stop state and in a case where the vehicle is not in a predetermined stop state”. As another storage area, for example, a storage area for a predetermined stop state and a storage area for a predetermined stop state may be provided. “Depending on whether or not the vehicle is in a predetermined stop state” may be “as soon as whether or not the vehicle is in a predetermined stop state” or “changed in whether or not the vehicle is in a predetermined stop state” You don't have to say "sometimes." In particular, when the continuous recording function is configured to generate a file in units of files at predetermined time intervals (for example, 1 minute), for example, when the state is changed from a state that is not a predetermined stop state to a state that is a predetermined stop state, Alternatively, when changing from a predetermined stop state to a non-predetermined stop state, a process of switching the storage area of the file storage destination may be performed immediately. Until the recording of the recording unit time (for example, 1 minute) is completed, the recording of the file unit of the file being recorded is completed without switching the storage area of the file storage destination, and in a predetermined stop state. It is preferable to determine whether or not there is a file storage destination storage area by determining whether or not the vehicle is in a predetermined stop state.

  For example, continuous recording may be distinguished between running and stopped, and continuous recording may be recorded in a separate folder while running and stopped, and overwritten in each folder. In this way, even if the engine is stopped without stopping for a long period of time, it is possible to prevent a situation in which the recording during driving is overwritten and erased while the vehicle is stopped, and it is possible to record an accident while the vehicle is stopped. It is better to overwrite continuous recording while the vehicle is stopped due to memory capacity limitations.

  In particular, the time during which “the vehicle stops for a predetermined time” in the “state in which the vehicle has stopped and the vehicle has stopped for a predetermined time” may be set to a time that exceeds the stop time for waiting for a general signal. It is better not to suppress overwriting during the general stop time of waiting for a signal, but to suppress overwriting when the vehicle stops for a relatively long time. In this way, it is possible to prevent overwriting from being suppressed every time a signal is waited for, to reduce the frequency of overwriting suppression, and to reduce the probability of erasing even with a small memory capacity.

  In particular, it may be about 3 to 5 minutes. In this way, it is possible to prevent the possibility that the recording at the time of accident will be overwritten by continuous recording while stopping because the engine has been turned off, and it is not an accident when normal driving is resumed in a shorter time than this However, since it is considered that it is not a serious accident, overwriting suppression works excessively, it is possible to prevent the storage area from being filled with video with overwriting suppressed, and there is little risk of squeezing the recordable area of continuous recording it can.

  In addition, if the vehicle has stopped but has not stopped for a predetermined time, the overwriting of the recorded video of continuous recording for a predetermined time before and after the time when the stop was started is not performed. Good.

  When the vehicle is stopped after the vehicle has stopped as a predetermined stop state, and the vehicle is in the predetermined stop state with a state in which the stop time is longer than a predetermined time such as 2 minutes. In addition, it is preferable to suppress the overwriting of the continuously recorded video before and after the stop and the continuously recorded video before and after the stop. In this way, when the vehicle is moved to a safe place after the accident, it is possible to more reliably store and save the video at the time of the accident and the video when moved to a safe place.

More specifically, for example, in continuous recording, when a vehicle stops, recording data (imaging data) of continuous recording for a predetermined time such as 1 minute before and after that, or a recording data file including it is temporarily stored. After that, when the vehicle travels and stops again, if the stop time is longer than a predetermined time such as 2 minutes, for example, recorded data for a predetermined time such as 1 minute before or after the stop, or recorded data including the same The file and the temporarily stored recording data or the recording data file including the recorded data may be moved or copied to a specific folder, a specific storage area, or a specific storage medium. The temporary storage may be erased when traveling is resumed at a predetermined speed, for example, 5 km / h or higher.
In addition to processing until one stop before the stop for a predetermined time or longer, the same overwriting suppression may be performed up to two or three before.

The predetermined stop state includes a state in which the vehicle has been stopped for a predetermined time such as 3 minutes or more, and stores the time every time the vehicle stops, and when the stop continues for the predetermined time or more, the time And it is good to suppress overwriting about the video of the continuous recording memorize | stored for the predetermined time before and after the stop time memorize | stored before the predetermined time mentioned later.
In this way, for example, even if the vehicle is stopped multiple times when the vehicle is moved to a safe place after the accident, the video at the time of the accident and the video when the vehicle is stopped multiple times are more sure. Can be stored in memory. Further, since the time is stored, it is possible to reduce the cost increase easily because the storage capacity of the necessary temporary storage is smaller than the configuration in which the video data is temporarily stored for each stop.

The predetermined number may be the number of times or may be time. For example, it may be 4 times or 5 minutes, for example. It is good to set both conditions of time and frequency. For example, it may be 4 times and 5 minutes.
The time may be the stop end time or the stop time, but may be the stop start time. Each stop time is stored, and if there is a stop that continues for a predetermined time or longer, it is preferable to save a recording before and after the start of the stop at a predetermined stop.
More specifically, for example, when the vehicle stops, the time at which the vehicle starts to stop is stored every time the vehicle stops. When the vehicle stops for a predetermined time or longer, the stop time of the vehicle and the start time of the vehicle until a predetermined time before that stop The continuous recording data in which recordings for a predetermined time before and after are stored, or the continuous recording data file including the recording data may be moved or copied to a specific folder, a specific storage area, or a specific storage medium.

When it is determined that the vehicle is in the predetermined stop state, the plurality of different time points are determined as suppression targets for overwriting, and the overwriting suppression is performed for recorded video of a time including the determined time point and the time before and after the determined time points. Good.
In this way, the storage capacity of the temporary memory required is less than the configuration in which the video data at each time point and the video data before and after the time point are temporarily stored in the main memory such as the RAM, and the increase in cost can be easily suppressed. In addition, the video at the time of the accident and the video at the time related to the video can be stored and saved more reliably.

The configuration is based on the condition that the stop time is a predetermined time or more in determining whether the vehicle is in the predetermined stop state, and the power supply from the vehicle is cut off before the vehicle stops and the stop continues for a predetermined time or more. In such a case, the vehicle may be regarded as having stopped for a predetermined time or longer.
If the engine is stopped immediately after the vehicle stops, continuous recording will not proceed any further, so it will not be overwritten while it is stopped, but if the engine is started again and running starts, continuous recording will start. Since it may be erased by, it is better to save.
In addition, if the configuration in which the stop is considered to be continued as described above is adopted, the configuration in which the stop time does not include the time during which the engine is stopped can be facilitated. In such a configuration, it is not necessary to perform processing for obtaining the stop time at the end of power supply or at the start of power supply. For example, in order to determine the stop time, for example, when power is supplied, there is no need to perform a process for obtaining the stop time from the last recording time before the engine stop and the time at the engine start.

When the power supply from the vehicle is cut off, it is determined that the vehicle is in the predetermined stop state. When the overwriting is suppressed, the backup power supply is processed or the power is turned on and the circuit is started. It is good to process at the time.
If it is a drive recorder equipped with a battery, it is sufficient to stop the operation after saving the battery. However, the battery may not be installed or the battery may be exhausted. It is better to process when you put it.

Suppression of overwriting is performed by storing the video in any one of a predetermined folder, a predetermined storage area, and a predetermined storage medium, and it is possible to set or change the setting in advance to prohibit overwriting or to permit overwriting. In the case of overwriting permission, it is preferable that the probability that the memory is erased by overwriting is lower than the overwriting of continuous recording.
If it is clear in advance whether overwriting is prohibited or permitted, it is preferable to set it to either from the beginning (for example, at the time of shipment), and to change the setting if it is better to set it according to the user's usage. Even in the case of overwriting permission, it is possible to record the video at the time of an accident more reliably by lowering the probability that the memory is erased by overwriting than the overwriting of continuous recording.

While the power is supplied, it has a continuous recording function that always performs continuous recording, and the predetermined folder, the predetermined storage area or the predetermined storage medium is a folder different from the normal recording and event recording. It is preferable that the data is stored in a storage area or a storage medium.
In this way, it is possible to reduce the influence from constant recording and event recording. In addition, the influence on continuous recording and event recording can be reduced. 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 an operation means operated by the user to suppress overwriting, is added based on the previous drive recorder 1.
When the overwrite suppression button 80 is operated during execution of continuous recording, the controller 30 (see FIG. 4) overwrites a predetermined range of video including a video currently being recorded, for example, a video recording range for one minute. Suppress. Even when the power is cut off, the control controller 30 suppresses overwriting including a video in a predetermined range such as a recording range for one minute before the power is cut off.

This drive recorder 1 is very effective when the power of the drive recorder 1 is turned off due to an accident or by turning off the engine without operating the overwriting suppression button 80 in the event of an accident. When power is supplied again, it is possible to suppress overwriting of the video in a predetermined range before power-off at that time.
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 3)
This example is an example of a drive recorder to which a function for detecting engine start by an engine starter is added based on any of the previous drive recorders.
The drive recorder includes a communication port that captures a vehicle signal including a signal representing the engine speed.

  The controller 30 (see FIG. 4) detects the start of the engine when the engine speed that has not reached the threshold value, such as 300 rpm, exceeds the threshold value. When engine start is detected, control is performed to suppress overwriting of recorded image data.

In the drive recorder of this example, the video at the moment when an event such as an accident occurs is less likely to be erased by the video while the engine is started with the engine starter and idling.
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 4
This example is an example in which the target to suppress overwriting when the vehicle enters a predetermined stop state is expanded in time based on one of the previous drive recorders.
The controller 30 (see FIG. 4) of the drive recorder executes control to suppress overwriting of recorded video of continuous recording for a predetermined time before and after the vehicle is in a predetermined stop state.

  For example, when an accident occurs, there are many drivers who stop immediately after that, so if you suppress overwriting by storing images before and after stopping in a dedicated folder etc., there is a high possibility that the recording of the accident etc. is recorded . Therefore, according to the drive recorder of the present example that suppresses overwriting of imaging data for a predetermined time before and after the time when the vehicle is in a predetermined stop state, the data recorded at the time of the accident and before and after that can be stored and saved more reliably.

  For example, in the case of a drive recorder having an event recording function and a continuous recording function, which will be described later in Example 10, the predetermined time before and after the above is longer than the recording time by the 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 the stop and several minutes before and ending from several tens of seconds to several minutes after the stop. In particular, it is better to extend the overwriting suppression time before stopping than after stopping, and it is preferably about 1 to 3 minutes before and about several tens of seconds to 1 minute after. If it is too long, the memory capacity will increase and the possibility of being erased by overwriting etc. will increase, but if you do this, it will not be necessary to increase the memory capacity, the possibility of being erased will be reduced, and accidents will also occur The process at the time of the accident and the process after the accident are fully included, and the contents at the time of the accident can be recorded reliably.

In addition, when the vehicle is in a predetermined stop state, the overwriting may be suppressed with respect to a recorded video of continuous recording for a predetermined time before and after the stop is started. In this way, it is possible to prevent overwriting from being suppressed every time the vehicle stops, and to reduce the probability of erasing even when the video recording capacity is small, such as a small memory capacity.
About another structure and an effect, it is the same as that of another Example in the range which does not produce contradiction.

(Example 5)
This example is an example in which the control when the power is shut off is changed based on any of the previous drive recorders 1.
The controller 30 (see FIG. 4) of the drive recorder, when the power of the drive recorder 1 is cut off, immediately before the power is turned off, when the vehicle stops before the power is turned off, or before the power is turned off. Control is performed to suppress overwriting for recorded video of continuous recording including at least one of the time points when the vehicle is stopped.

  Although it is important to stop the engine for a long time without stopping the engine at the time of an accident, etc., it is important to reduce the possibility that the recording of the accident will be erased by overwriting the continuous recording. It seems that there are more cases of stopping / parking. In this case, it is sufficient that event recording is performed before the engine is stopped. However, in the case of a configuration without an event recording function or when event recording is not performed because it is not determined as an event even if it has an event recording function, There is a possibility that the video at the time of accident of continuous recording may be erased by overwriting in the run after processing, but if you do this, you can prevent this like this and record the video at the time of accident more reliably Can be done. In particular, when the power of the drive recorder 1 is supplied from a vehicle and the power supply from the vehicle is stopped when the engine of the vehicle is stopped, the recording before the engine is stopped is stored every time. become. In particular, to suppress overwriting, for example, a dedicated folder may be provided and overwritten. In addition, “including the time point 1” may be a predetermined time before and after the time point 1, for example. For example, when the power of the drive recorder 1 is cut off after the vehicle has stopped, overwriting suppression processing may be performed on a recorded video of continuous recording for a predetermined time before and after the stop.

  In addition, a backup power supply capable of supplying power when the power is shut off may be provided, and overwriting may be suppressed by the backup power supply when the power is shut off. With a drive recorder configured in this way, overwriting can be more reliably suppressed. It should be noted that overwriting is preferably suppressed after startup when the power is turned on next time, for example, when the configuration does not include a backup power supply or when the backup power supply is provided but the capacity of the backup power supply is low.

In particular, for example, recorded video of continuous recording including at least one time point immediately before turning off the power source, starting the stop before turning off the power source, or entering the predetermined stop state before turning off the power source, In order to suppress overwriting, the following processing may be performed. For example, if there is a backup power supply, turn off the power after overwriting suppression processing with the backup power supply, and if the backup power supply is not installed or if the backup power supply capacity is low, then the power supply It is advisable to perform overwriting suppression processing after startup when is entered. Since it is necessary to process after the power is cut off, this is preferable.
About another structure and an effect, it is the same as that of another Example in the range which does not produce contradiction.

(Example 6)
This example is an example in which a configuration for switching control for suppressing overwriting according to the vehicle position is added based on one of the previous drive recorders.
The controller 30 (see FIG. 4) of the drive recorder executes a process of determining whether or not the location measured by the GPS receiver 24 is a preset location, for example. The controller 30 does not suppress overwriting when the location of the vehicle is a preset location.

For example, there are many cases where it is not necessary to record accidents in places where parking is often done on a daily basis, such as parking lots at home or work, so for example, the location where such recording is unnecessary is set in advance and overwriting suppression processing is performed. It is better not to. Therefore, it is possible to reduce the probability that necessary images such as accident records will disappear due to overwriting. The location where the overwriting suppression process is not performed may be stored and set, for example, when an instruction such as button operation is input at the location.
In addition, about another structure and an effect, it is the same as that of another Example within the range which does not produce contradiction.

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

  In the drive recorder 1 of this example, as a determination pattern for determining a predetermined stop state, a pattern in which the vehicle stops within several tens of seconds, which is an example of a predetermined time after an impact of a threshold value or more is detected, is the database 32. Is remembered. When the vehicle stops within a predetermined time after the impact has occurred, the controller 30 determines whether or not the determination pattern of the stop state matches the actual vehicle state. Is determined. As in the first embodiment, if it is a predetermined stop state, the continuous recording is stopped and the overwrite suppression function is executed to prevent the recorded image data from being erased.

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

  In this example, it is determined that there is a possibility of an accident when an impact greater than a predetermined threshold is detected. However, instead of or in addition to this, the possibility of an accident is determined. If the failure diagnosis information of the vehicle ECU acquired from a diagnosis system such as OBD is information indicating a failure, or if it is detected that an airbag or the like has been operated, the situation corresponds to an accident by recognizing the video image It is also possible to set a case where a scene in which is reflected 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 equipped with a function to detect at least one of the other party's rescue, personal injury, talking to the other party, etc., and the overwriting suppression function is effectively controlled when one is detected It is also good to do. In this way, it is possible to suppress the possibility that the video at the moment when an event such as an accident occurs will be erased more reliably. For example, rescue of the other party, personal injury, talking with the other party, etc. may be detected by recognizing the captured image.

When at least one of rescue of the other party, personal injury, talking with the other party is detected, for example, rescue of the other party, personal injury, talking with the other party, etc. It may be immediately after detecting at least one of the above, but it may be 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, it is good to be after not detecting these. In this way, rescue and discussions are recorded on the video, but since these times are relatively short, the recorded video data at the time of the accident is overwritten and erased. The situation can be suppressed. As a method for detecting the rescue of the other party, personal injury, talking with the other party, and the like, for example, it may be detected by image recognition regarding the captured video. The determination that the person is injured, talking with the other party, etc. is provided with a function of recognizing the person in the image captured by the vehicle by image recognition processing such as face recognition. It may be performed based on whether or not the current time is a predetermined pattern stored in advance. For example, when two or more persons are recognized over a predetermined time such as 2 minutes, or when the same person is repeatedly recognized or not recognized within a predetermined time such as 3 minutes. It is better to suppress overwriting.
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 8)
In this example, the control content of the overwriting suppression function is changed based on one of the previous drive recorders.
In the overwriting suppression function in this example, continuous recording is not completely stopped even in a 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 ensure a long time until overwriting and erasing when it is determined as a predetermined stop state. And reduce the possibility of erasing recorded video.

  When the controller 30 is not in a predetermined stop state, the controller 30 performs continuous recording for recording video at, for example, 30 frames per second. On the other hand, when it is determined as a predetermined stop state, the overwriting suppression function switches to continuous recording with a reduced number of frames such as 1 frame per second.

  According to the drive recorder 1, when it is determined that the predetermined stop state is established, continuous recording can be continued while saving the memory capacity required for recording the video. It is possible to cope with an emergency such as quarreling with an accident partner while continuing a predetermined stop state, and video evidence useful for proof of the background can be secured. On the other hand, when it is determined to be a predetermined stop state, the overwriting suppression function saves the memory resources required for recording the video, so that the recorded video at the moment when the event such as an accident occurs may be erased by overwriting. Less.

  As a configuration for reducing the frame rate, normal continuous recording records video at several tens of frames per second, while the overwriting suppression function is being executed, the frame rate is set to human digits, such as about several frames per second (for example, 1 fps). It is better to change it to a smaller extent.

It is also possible to change the number of pixels of the video to be recorded instead of or in addition to changing 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 so that it is smaller by a human digit.
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 9
This example is an example in which the content of control by the overwriting suppression function is changed based on any of the previous drive recorders 1.
In the overwriting suppression function of the drive recorder 1 of this example, the control controller 30 (see FIG. 4) performs control so that the recorded image data is not erased by overwriting. At least one of the following methods is adopted as a configuration for controlling so as not to disappear by overwriting.
(1) Prohibit overwriting of recorded image data.
(2) Copy imaging data to an area other than the overwrite area, which is a continuous recording writing area.
(3) Move the imaging data to an area that is not an overwrite area.

  If these methods (1) to (3) are adopted, the video at the moment when an event such as an accident included in the recorded video does not disappear due to overwriting, and an event such as an accident occurs more reliably. It is possible to eliminate the risk of erasing the video at the moment. For example, each method may be configured as follows.

(1) As a configuration for prohibiting overwriting, for example, a 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 overwrite-allowable area and an overwrite-prohibited area may be divided, and video data recorded in the overwrite-capable area may be copied to the overwrite-protected area.
(3) 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 overwriteable area may be moved to the overwrite prohibition area. For example, the overwritable area and the overwritable area may be different folders, different drives, or different file systems.

Note that, for example, the captured image data of the recorded video or the captured data file including the image data may be moved or copied to a specific folder, a specific storage area, or a specific storage medium. In order to suppress overwriting, it may be moved or copied to an overwriting-prohibited folder or the like. However, for example, it is practical to use a dedicated folder or the like with overwriting permission because the vehicle is frequently stopped when traveling in the city. . By suppressing overwriting by moving or copying to a dedicated folder etc. with overwrite permission in this way, the data amount in the dedicated folder etc. will be less than the data amount of continuous recording, so If the same storage capacity as recording is used, the probability of being erased by overwriting is low, which is beneficial.
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 10)
This example is an example in which an event recording function for executing recording in response to an event such as an accident is added based on one of the previous drive recorders.

  The control controller 30 (see FIG. 4) of the drive recorder of this example performs comparison of the acceleration detected by the acceleration sensor 15 with a threshold value. The controller 30 executes event recording that records video images before and after the occurrence of an event that an acceleration exceeding a predetermined threshold has occurred.

  When the above event occurs during execution of continuous recording, the controller 30 executes event recording that records video for a predetermined period before and after the occurrence of the event with overwriting prohibition in parallel with the continuous recording. When an event occurs during the effective control of the overwriting suppression function, the free space in the storage area of the SD card is used to record the video before and after the event occurrence with overwriting prohibited. If there is not enough free space in the SD card storage area, the video before and after the event occurrence is recorded in the storage area of the main memory with overwriting prohibited. Note that image data before and after the event occurrence is recorded in synchronization with velocity data, position data, acceleration data, and the like.

  In this way, even when an event such as an accident occurs while overwriting is suppressed, the event recording function will record, and the video at the moment the event such as an accident occurs Can be more reliably suppressed. In particular, since overwriting is suppressed when the vehicle is in a predetermined stop state, it is possible to suppress the possibility that an image of the moment such as the accident is erased more reliably when an accident occurs when the vehicle is stopped. Since there may be accidents while the vehicle is stopped, it is desirable to record with the event recording function.

In the drive recorder 1 of this example, since the video image data obtained by event recording is recorded with overwriting prohibited, it is possible to reliably prevent the video at the moment of an accident or the like from being erased.
In this example, the output signal of the acceleration sensor 15 is used to detect the occurrence of an event. However, the output signal of another sensor may be used, and the signal of the event may be used using a signal from a switch or the like. It is also possible to detect the occurrence.

  In a drive recorder having an event recording function, the recording time by the continuous recording function is preferably set longer than the recording time by the event recording function. In this way, overwriting is also suppressed for video that has already been recorded by continuous recording, and the possibility of erasing the recorded video of continuous recording at the moment when an event such as an accident occurs can be suppressed. When event recording is not executed due to a small impact that is not regarded as an event, it is possible to increase the possibility that a video of an event such as an accident can be confirmed by continuously recorded video. In addition, even when video is recorded by the event recording function, the situation before and after the event such as an accident for a longer time is recorded by the video of continuous recording recorded for a longer time than the video by the event recording. There is a remarkable effect that it can be confirmed.

It is preferable that the continuous recording and the event recording are continuously executed even when the vehicle is stopped. In this way, for example, it becomes a complement when it disappears due to missing or overwriting. In addition, when used together with continuous recording and event recording, the reliability of recording and saving at the time of an accident is increased.
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 11)
It is an illustration of a preferred configuration for any of the previous drive recorders 1.
For example, the following (a) to (i) may be configured for the purpose of more reliably storing and saving recorded data before and after the accident. These focus on immediately stopping the vehicle when the vehicle has an accident or when the vehicle is witnessed and rescued. For example, it is possible to solve the problem that the video that has been recorded by overwriting disappears in continuous recording, and the problem that event recording is not stored and saved, for example, when the sensor does not detect or when the button is not operated.

(A) It is preferable to provide a function of suppressing overwriting when it is determined whether it is immediately after the accident and it is determined that it is immediately after the accident.
In this way, it is possible to more reliably store and save images before and after the accident. As a more specific configuration, for example, the following (c) and (d) may be used.

(B) After the accident, it is determined whether or not the vehicle has been moved to a safe place, and when it is determined that the car has been moved to a safe place after the accident, an overwriting suppression function is provided to suppress overwriting. Good.
In this way, it is possible to more reliably store and save images before and after the accident. As a more specific configuration, for example, the following (e) may be used. In this case, it is preferable that suppression of overwriting is performed on an image including a time point before and after the accident.
Whether or not it is a safe place may be determined based on whether or not the area information of the safe place is stored in advance and 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 outside this area. Especially on roads, it is recommended that the area is an unsafe place.

(C) A continuous recording function is provided, and the predetermined stop state includes a stop state, and when the vehicle enters the predetermined stop state, recorded video of continuous recording for a predetermined time before and after the vehicle A configuration that suppresses overwriting is preferable.
When an accident occurs, there are many drivers who stop immediately after that, so if you suppress overwriting, such as storing the images before and after stopping in a dedicated folder etc., there is a high possibility that the recording of the accident etc. is recorded In addition, it is possible to store and save the recorded data before and after the accident more reliably.

  For example, when there is an event recording function and a continuous recording function, the predetermined time before and after is preferably 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 the stop and several minutes before and ending from several tens of seconds to several minutes after the stop. In particular, it is better to extend the overwriting suppression time before stopping than after stopping, and it is preferably about 1 to 3 minutes before and about several tens of seconds to 1 minute after. If it is too long, the memory capacity will increase and the possibility of being erased by overwriting etc. will increase, but if you do this, it will not be necessary to increase the memory capacity, the possibility of being erased will be reduced, and accidents will also occur The process at the time of the accident and the process after the accident are fully included, and the contents at the time of the accident can be recorded reliably.

  The continuous recording may be configured to store the continuously recorded video in units of files every predetermined time. In this configuration, the recorded video is created in units of files every predetermined time and is overwritten. In particular, when the configuration of (c) is provided, the predetermined time may be about 1 minute. Thus, when the file unit is set to about 1 minute, for example, it can be easily processed as a file at the time of stopping, a file before 1 to 2 and a file after one.

(D) As a suppression of overwriting, continuous recording may be recorded in different storage areas depending on whether or not the vehicle is in a predetermined stop state, and a function of performing the overwriting recording in each storage area may be provided.
In this way, even if the vehicle has been in a predetermined stopping state for a long time, an image in a state that is not in the predetermined stopping state (for example, a moving image) is displayed as an image in a state in which the vehicle is in a predetermined stopping state. Overwriting can be suppressed. It is better to overwrite the continuous recording when the vehicle is in a predetermined stop state due to the memory capacity limitation.

Another storage area may be a storage area managed separately, for example, a different folder or a different drive.
As “depending on whether or not the vehicle is in a predetermined stop state”, it may be “in a case where the vehicle is in a predetermined stop state and in a case where the vehicle is not in a predetermined stop state”. As another storage area, for example, a storage area for a predetermined stop state and a storage area for a predetermined stop state may be provided. “Depending on whether or not the vehicle is in a predetermined stop state” may be “as soon as whether or not the vehicle is in a predetermined stop state” or “changed in whether or not the vehicle is in a predetermined stop state” You don't have to say "sometimes." In particular, when the continuous recording function is configured to generate a file in units of files at predetermined time intervals (for example, 1 minute), for example, when the state is changed from a state that is not a predetermined stop state to a state that is a predetermined stop state, Alternatively, when changing from a predetermined stop state to a non-predetermined stop state, a process of switching the storage area of the file storage destination may be performed immediately. Until the recording of the recording unit time (for example, 1 minute) is completed, the recording of the file unit of the file being recorded is completed without switching the storage area of the file storage destination, and in a predetermined stop state. It is preferable to determine whether or not there is a file storage destination storage area by determining whether or not the vehicle is in a predetermined stop state.

  For example, continuous recording may be divided into traveling and stopping, and continuous recording may be recorded in separate folders while traveling and stopped, and overwritten in each folder. In this way, even if the engine is stopped without stopping for a long period of time, it is possible to prevent a situation in which the recording during driving is overwritten and erased while the vehicle is stopped, and it is possible to record an accident while the vehicle is stopped. It is better to overwrite continuous recording while the vehicle is stopped due to memory capacity limitations.

(E) The predetermined stop state includes a state in which the vehicle has stopped and stopped for a predetermined time, and when the vehicle enters the predetermined stop state, a predetermined time before and after the start of the stop It may be configured to suppress the overwriting of the recorded video of the continuous recording.
In this way, it is possible to prevent overwriting from being suppressed every time the vehicle stops, and to reduce the probability of erasing even when the video recording capacity is small, such as a small memory capacity.

  In particular, the time during which “the vehicle stops for a predetermined time” in the “state in which the vehicle has stopped and the vehicle has stopped for a predetermined time” may be set to a time that exceeds the stop time for waiting for a general signal. It is better not to suppress overwriting during the general stop time of waiting for a signal, but to suppress overwriting when the vehicle stops for a relatively long time. In this way, it is possible to prevent overwriting from being suppressed every time a signal is waited for, to reduce the frequency of overwriting suppression, and to reduce the probability of erasing even with a small memory capacity.

  In particular, it may be about 3 to 5 minutes. In this way, it is possible to prevent the possibility that the recording at the time of accident will be overwritten by continuous recording while stopping because the engine has been turned off, and it is not an accident when normal driving is resumed in a shorter time than this However, since it is considered that it is not a serious accident, overwriting suppression works excessively, it is possible to prevent the storage area from being filled with video with overwriting suppressed, and there is little risk of squeezing the recordable area of continuous recording it can. In particular, it is better to combine the configuration (l) described later.

  In addition, if the vehicle has stopped but has not stopped for a predetermined time, the overwriting of the recorded video of continuous recording for a predetermined time before and after the time when the stop was started is not performed. Good. In addition, the configuration of (e) not including the configuration of (c) is preferable.

(F) When the power of the drive recorder 1 is cut off, at least at the time immediately before the power is turned off, when the vehicle stops before the power is turned off, or when the predetermined stop state before the power is turned off It is preferable to provide a function for suppressing overwriting of recorded video of the continuous recording including any one time point.

Although it is important to stop the engine for a long time without stopping the engine at the time of an accident, etc., it is important to reduce the possibility that the recording of the accident will be erased by overwriting the continuous recording. It seems that there are more cases of stopping / parking. In this case, it is sufficient that event recording is performed before the engine is stopped. However, in the case of a configuration without an event recording function or when event recording is not performed because it is not determined as an event even if it has an event recording function, There is a possibility that the video at the time of accident of continuous recording may be erased by overwriting in the run after processing, but if you do this, you can prevent this like this and record the video at the time of accident more reliably Can be done. In particular, when the power of the drive recorder 1 is supplied from a vehicle and the power supply from the vehicle is stopped when the engine of the vehicle is stopped, the recording before the engine is stopped is stored every time. become. In particular, to suppress overwriting, for example, a dedicated folder may be provided and overwritten. In addition, “including the time point 1” may be a predetermined time before and after the time point 1, for example.
As a configuration example of the above (f), for example, when the power of the drive recorder 1 is shut off after the vehicle stops, overwriting suppression processing may be performed on a recorded video of continuous recording for a predetermined time before and after the stop.

(G) A backup power supply capable of supplying power when the power is shut off may be provided, and overwriting may be suppressed by the backup power source when the power is shut off.
In this way, it is possible to more reliably suppress overwriting. It should be noted that overwriting is preferably suppressed after startup when the power is turned on next time, for example, when the configuration does not include a backup power supply or when the backup power supply is provided but the capacity of the backup power supply is low.

  In particular, for example, the process (f) may be performed in this way. For example, if there is a backup power supply, turn off the power after overwriting suppression processing with the backup power supply, and if the backup power supply is not installed or if the backup power supply capacity is low, then the power supply It is advisable to perform overwriting suppression processing after startup when is entered. Since it is necessary to process after the power is cut off, this is preferable.

(H) When the location measured by the GPS receiver 24 (FIG. 4) is a preset location, a function that does not suppress the overwriting may be provided.
For example, there are many cases where it is not necessary to record accidents in places where parking is often done on a daily basis, such as parking lots at home or work, so for example, the location where such recording is unnecessary is set in advance and overwriting suppression processing is performed. It is better not to. Therefore, it is possible to reduce the probability that necessary images such as accident records will disappear due to overwriting. The location where the overwriting suppression process is not performed may be stored and set, for example, when an instruction such as button operation is input at the location. In particular, for example, the configuration (h) may be provided in the configuration (f).

(I) As a predetermined stop state, the vehicle travels after it stops and then stops again. When the vehicle is in the predetermined stop state, the state where the time of the stop is equal to or longer than a predetermined time. The overwriting may be suppressed with respect to continuously recorded video before and after the stop and continuously recorded video before and after the stop.
In this way, when the vehicle is moved to a safe place after the accident, it is possible to more reliably store and save the video at the time of the accident and the video when moved to a safe place.

More specifically, for example, in continuous recording, when the vehicle stops, the recording data of continuous recording for a predetermined time before and after or a recording data file including it is temporarily stored, and then the vehicle travels and stops again. If the stop time is longer than the predetermined time, the recorded data of the predetermined time before and after the stop of the vehicle or the recorded data file including the same, the temporarily stored recording data or the recorded data file including the specified data, the specified folder, the specified data It may be configured to move or copy and store in a storage area or a specific storage medium. The temporary storage may be erased when traveling is resumed at a predetermined speed or higher.
In addition to processing until one stop before the stop for a predetermined time or longer, the same overwriting suppression may be performed up to two or three before.

(J) The predetermined stop state includes a state in which the vehicle stop time is equal to or longer than a predetermined time, stores the time each time the vehicle stops, and if the stop continues for the predetermined time or longer, the time and the time Further, it is preferable to suppress overwriting of a previously recorded video of continuous recording for a predetermined time before and after the stored stop time until a predetermined time.
In this way, for example, even if the vehicle is stopped multiple times when the vehicle is moved to a safe place after the accident, the video at the time of the accident and the video when the vehicle is stopped multiple times are more sure. Can be stored in memory. Further, since the time is stored, it is possible to reduce the cost increase easily because the storage capacity of the necessary temporary storage is smaller than the configuration in which the video data is temporarily stored for each stop.

The predetermined number may be the number of times or may be time. For example, it may be 4 times or 5 minutes, for example. It is good to set both conditions of time and frequency. For example, it may be 4 times and 5 minutes.
The time may be the stop end time or the stop time, but may be the stop start time. Each stop time is stored, and if there is a stop that continues for a predetermined time or longer, it is preferable to save a recording before and after the start of the stop at a predetermined stop.
More specifically, for example, when the vehicle stops, the time at which the vehicle starts to stop is stored every time the vehicle stops. When the vehicle stops for a predetermined time or longer, the stop time of the vehicle and the start time of the vehicle until a predetermined time before that stop The continuous recording data in which recordings for a predetermined time before and after are stored, or the continuous recording data file including the recording data may be moved or copied to a specific folder, a specific storage area, or a specific storage medium.

(K) When it is determined that the vehicle is in the predetermined stop state, the plurality of different time points are determined as suppression targets for overwriting, and the overwriting suppression is performed for the recorded video of the time including the determined time point and the time before and after the determined time points. It is good to do.
In this way, the storage capacity of the temporary memory required is less than the configuration in which the video data at each time point and the video data before and after the time point are temporarily stored in the main memory such as the RAM, and the increase in cost can be easily suppressed. In addition, the video at the time of the accident and the video at the time related to the video can be stored and saved more reliably.

(L) The structure is based on the condition that the stop time is not less than a predetermined time in the determination as to whether the vehicle is in the predetermined stop state, and is supplied from the vehicle before the vehicle stops and the stop continues for the predetermined time or more. When the power is cut off, it is preferable that the vehicle is regarded as having stopped for a predetermined time or more.
If the engine is stopped immediately after the vehicle stops, continuous recording will not proceed any further, so it will not be overwritten while it is stopped, but if the engine is started again and running starts, continuous recording will start. Since it may be erased by, it is better to save.
For example, in the configurations of (d) to (k), if the vehicle stops and the power supply from the vehicle is cut off before the stop continues for a predetermined time or longer, it is assumed that the stop has continued for a predetermined time or longer and the storage process is performed. It may be configured.

  In addition, when configured as in (l), it is possible to facilitate the configuration in which the stoppage 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 stop time at the end of power supply or at the start of power supply. For example, in order to determine the stop time, for example, when power is supplied, there is no need to perform a process for obtaining the stop time from the last recording time before the engine stop and the time at the engine start.

(M) When the supply power from the vehicle is cut off, it is determined that the vehicle is in the predetermined stop state, and when the overwriting is suppressed, the backup power is processed or the power is turned on next. It may be processed when the circuit is activated.
If it is a drive recorder equipped with a battery, it is sufficient to stop the operation after saving the battery. However, the battery may not be installed or the battery may be exhausted. It is better to process when you put it.
For example, when the power supply from the vehicle is cut off as in (m), it is considered that the vehicle has been stopped for a predetermined time or more. For example, in any configuration from (d) to (m), the vehicle is stopped for a predetermined time. As a result of the determination, it is particularly preferable to provide the configuration (i) in the configuration for suppressing overwriting.

(N) The stop may have a function of assuming that the stop is continued until the vehicle travels at a predetermined speed or higher after the vehicle stops.
In this way, when the speed is lower than the predetermined speed, it is considered that the vehicle is stopped and the above-described configuration can be realized. In particular, the predetermined speed may be a speed of about several kilometers per hour corresponding to a traffic jam, for example. For example, when it is repeatedly stopped a little, such as in a traffic jam, it is possible to prevent a large number of overwrites from being suppressed. More preferably, the predetermined speed can be set by the user.

(O) Suppression of overwriting is performed by storing a video in any one of a predetermined folder, a predetermined storage area, and a predetermined storage medium, and the storage is preset or changed to prohibit overwriting or overwriting. When overwriting is permitted, the probability that the memory is erased by overwriting may be lower than the overwriting of continuous recording.
If it is clear in advance whether overwriting is prohibited or permitted, it is preferable to set it to either from the beginning (for example, at the time of shipment), and to change the setting if it is better to set it according to the user's usage. Even in the case of overwriting permission, it is possible to record the video at the time of an accident more reliably by lowering the probability that the memory is erased by overwriting than the overwriting of continuous recording.

(P) having a constant recording function, and storing the predetermined folder, the predetermined storage area or the predetermined storage medium in a folder, storage area or storage medium different from the normal recording and event recording; Good.
In this way, it is possible to reduce the influence from constant recording and event recording. In addition, the influence on continuous recording and event recording can be reduced. 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 when the vehicle is stopped.
In this way, for example, it becomes a complement when it disappears due to missing or overwriting. In addition, when used together with continuous recording and event recording, the reliability of recording and saving at the time of an accident is increased.
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.

  As described above, specific examples of the present invention have been described in detail as in the embodiments. However, these specific examples merely disclose an example of the technology included in the scope of claims. Needless to say, the scope of the claims should not be construed as limited by the configuration, numerical values, or the like of the specific examples. The scope of the claims includes techniques in which the specific examples are variously modified, changed, or appropriately combined using known techniques and knowledge of those skilled in the art.

The illustrated configurations can be arbitrarily combined basically, and a plurality of configurations may be combined within a range where no contradiction occurs. When combining, each item can be combined based on the concept of each component by demonstrating the ordinary creative ability of those skilled in the art. When there are components having the same name among the components described in each configuration, the components having 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”... “Nth continuous recording function” as different continuous recording functions for each configuration. However, some or all of them may be the same continuous recording function. Further, for example, the “predetermined stop state” may be determined separately for each configuration, for example, and overwriting may be suppressed for different recording targets, for example. It is preferable that the determination is made by combining at least a part or all of the same recording target and overwriting is suppressed.
The constituent elements described in each embodiment and the constituent elements described in the means for solving the problems and the elements to which the ideas are applied may be arbitrarily combined within a range in which 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 Control controller 311 SD card reader 32 Database 35 Personal computer 361 SD card reader / writer 45 Monitor

Claims (32)

In a recording apparatus having a function of recording an image captured in a vehicle by overwriting a recorded image,
A recording apparatus comprising a function of suppressing the overwriting when the vehicle is in a predetermined stop state. It has a continuous recording function,
The overwrite recording is performed on the recorded video of continuous recording,
The recording apparatus according to claim 1, wherein the function of suppressing overwriting is based on suppression of continuous recording. It has an event recording function,
The recording apparatus according to claim 1, wherein recording can be performed by an event recording function while the overwriting is suppressed. The recording apparatus according to claim 1, further comprising a state where the vehicle stops for a predetermined time or more as the predetermined vehicle stop state. 5. The function according to claim 1, further comprising: determining whether the vehicle may have had an accident and, when there is a possibility of having had an accident, a function of suppressing the overwriting. The recording device described. The recording apparatus according to claim 1, wherein, as the predetermined stop state, the vehicle is stopped within a predetermined time after detection of an impact. As suppression of the overwriting, stopping recording, changing the recording method so as to lengthen the time until overwriting, reducing the capacity required for recording per time by recording the video, recording The recording apparatus according to claim 1, further comprising: a function of performing at least one of reducing a frame rate of a video to be recorded and reducing a number of pixels of a video to be recorded. The recording apparatus according to claim 1, wherein the overwriting is prevented from being erased by overwriting. The overwriting is suppressed by performing at least one of prohibition of overwriting, copying to an area that is not an overwriting area, or moving to an area that is not an overwriting area. The recording device described in 1. The recording apparatus according to any one of claims 1 to 9, wherein when the vehicle is in a predetermined running state, the overwriting suppression is terminated. In the predetermined stop state, the vibration state acquired from the vibration detecting means is a predetermined state, the speed information acquired from the vehicle is a predetermined state, and the speed information acquired from the GPS receiving means is a predetermined state. The recording apparatus according to claim 1, wherein the determination is made based on at least one of certain things. A function for suppressing overwriting of a predetermined range of video including the video currently being recorded based on the operation from the user,
The recording apparatus according to any one of claims 1 to 11, further comprising a function of suppressing overwriting including an image in a predetermined range before the power is shut off even when the power is shut off. 13. The function according to claim 1, further comprising a function of suppressing the overwriting when at least one of rescue of the other party, personal injury, talking with the other party, or the like is detected. A recording apparatus according to claim 1. The recording apparatus according to claim 1, further comprising a function of suppressing the overwriting when it is detected that the engine is started by an engine starter. The recording apparatus according to any one of claims 1 to 14, further comprising a function of determining whether or not it is immediately after an accident, and suppressing the overwriting when it is determined that it is immediately after an accident. . It is determined whether or not the vehicle has been moved to a safe place after the accident, and when it is determined that the car has been moved to a safe place after the accident, the function of suppressing the overwriting is provided. Item 16. The recording device according to any one of Items 1 to 15. It has a continuous recording function,
As the predetermined stop state, it has become a stop state,
The recording apparatus according to any one of claims 1 to 16, wherein when the vehicle enters the predetermined stop state, the overwriting is suppressed for a recorded video of continuous recording for a predetermined time before and after the vehicle. It has a continuous recording function,
The continuous recording is recorded in a different storage area depending on whether the vehicle is in the predetermined stop state as the overwriting suppression, and the overwrite recording is performed in each storage area. The recording apparatus according to any one of 1 to 17. It has a continuous recording function,
The predetermined stop state includes a state where the vehicle stops and continues for a predetermined time,
The overwriting is suppressed for a recorded video of continuous recording for a predetermined time before and after the stop of the vehicle when the vehicle enters the predetermined stop state. A recording apparatus according to claim 1. It has a continuous recording function,
When the power source of the apparatus is shut off, at least one of the time point immediately before the power source is shut off, the time when the vehicle stops before the power source is shut off, or the time when the predetermined stopping state before the power source is shut off The recording apparatus according to any one of claims 1 to 19, further comprising a function of suppressing the overwriting of the recorded video of the continuous recording including a time point. A backup power supply capable of supplying power when the power is shut off,
The recording apparatus according to any one of claims 1 to 20, wherein the overwriting is suppressed by the backup power source when the power source is shut off. It has a positioning function,
The recording according to any one of claims 1 to 21, wherein the overwriting suppression includes a function that does not suppress the overwriting when a measured location is a preset location. apparatus. It has a continuous recording function,
As the predetermined stop state, the vehicle travels after the vehicle has stopped and is stopped again, and the state where the time of the stop is equal to or longer than a predetermined time,
23. The overwriting is suppressed for a continuously recorded video before and after the stop and a continuously recorded video before and after the re-stop when the vehicle enters the predetermined stop state. A recording apparatus according to any one of the above. It has a continuous recording function,
As the predetermined stop state, comprising a state where the vehicle stop time is a predetermined time or more,
Each time the vehicle stops, the time is stored, and if the stop continues for the predetermined time or longer, the stored continuous recording video of the predetermined time before and after the stored time until the predetermined time before that time The recording apparatus according to any one of claims 1 to 23, wherein overwriting is suppressed. It has a continuous recording function,
When it is determined that the vehicle is in the predetermined stop state, the plurality of different time points are determined as overwriting suppression targets, and the overwriting is suppressed with respect to a recorded video of a time including the determined time point and the time before and after the determined time points. The recording apparatus according to any one of claims 1 to 24. The configuration is based on the condition that the stop time is equal to or longer than a predetermined time in the determination of whether the predetermined stop state,
26. The vehicle according to any one of claims 1 to 25, characterized in that if the vehicle stops and the power supply from the vehicle is cut off before the vehicle continues to stop for a predetermined time or longer, it is considered that the vehicle has stopped for a predetermined time or longer. Recording device. When the power supply from the vehicle is cut off, it is determined that the vehicle is in the predetermined stop state. When the overwriting is suppressed, processing is performed with a backup power source or the power is turned on and the circuit is started. The recording apparatus according to any one of claims 1 to 26, wherein the processing is performed at the time when the recording is performed. The recording apparatus according to any one of claims 1 to 27, wherein the stop is considered to be continued until the vehicle travels at a predetermined speed or higher after the vehicle stops. The overwriting suppression is performed by storing the video in any one of a predetermined folder, a predetermined storage area, and a predetermined storage medium,
29. The above-mentioned memory can be set in advance or overwritten by prohibition of overwriting and overwriting permission, and in the case of overwriting permission, the probability that the memory is erased by overwriting is lower than the overwriting of continuous recording. A recording apparatus according to any one of the above. It has a constant recording function,
30. The storage in the predetermined folder, the predetermined storage area or the predetermined storage medium is stored in a folder, storage area or storage medium different from the regular recording and event recording. Recording device. The recording apparatus according to any one of claims 1 to 30, further comprising a continuous recording function and an event recording function, wherein continuous recording and event recording are continuously executed even when the vehicle is stopped.   A program for causing a computer to realize the function of the recording apparatus according to any one of claims 1 to 31.

Images