CN104767994A - Method for detecting vehicle-mounted DVR video data storage integrity - Google Patents
Method for detecting vehicle-mounted DVR video data storage integrity Download PDFInfo
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- CN104767994A CN104767994A CN201510171553.8A CN201510171553A CN104767994A CN 104767994 A CN104767994 A CN 104767994A CN 201510171553 A CN201510171553 A CN 201510171553A CN 104767994 A CN104767994 A CN 104767994A
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Abstract
The invention discloses a method for detecting vehicle-mounted DVR video data storage integrity. The method includes the steps that firstly, a database is set up, a vehicle engine is started, start time node information is collected, when it is detected that the vehicle engine is started, a vehicle-mounted DVR is started, a time node at the moment is recorded, and video data and the time node information are stored in the database; secondly, when the vehicle engine is shut down, shutdown time node information is collected, recorded and stored; thirdly, when a requestor requests video storage integrity information, the video storage integrity information is sent to the requestor in a time quantum mode; fourthly, the requestor receives time quantum data, and the time quantum data are displayed in a graphical mode. According to the method, data integrity can be detected rapidly and visually, vehicle shutdown and start information is hidden, a user gets involved in time and removes faults when finding that data are incomplete, if it is found that a storage device is damaged, the damaged storage device is replaced in time, and therefore safe and effective running of a vehicle is guaranteed.
Description
Technical field
The present invention relates to a kind of supervisory control system, especially relate to a kind of detection method of vehicle-mounted DVR video data memory integrity.
Background technology
Existing vehicle-mounted DVR(digital video recorder) storage means mainly contains following three kinds: 1, adopt SD card to store, shortcoming is that capacity is less, and not soon, unexpected power down easily damages read or write speed, and advantage is not afraid of the environment that jolts.2, SSD(solid state hard disc is adopted) store, advantage is that capacity is comparatively large, and read or write speed is fast, be not afraid of and jolt, but price is costly, increases product cost.3, adopt traditional mechanical hard disk to store, adopt buffer memory (buffer memory adopts the storage mediums of mechanical parts), namely when be in jolt environment time stored in buffer memory, when steady again data batchmove to hard disk.Because vehicle-mounted DVR work runs along with the startup of vehicle, tail-off and stopping, possessing the characteristic of discontinuous storage, system maintenance personnel, when detecting vehicle-mounted DVR video data, are difficult to the integrality detecting data.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of detection method of vehicle-mounted DVR video data memory integrity, can the integrality of detection data of quicklook, evade vehicle stop and start information, user, in the incomplete situation of discovery data, gets involved in time, fix a breakdown, as found, memory device damages, and changes the memory device damaged in time, thus the safe and effective operation of support vehicles.
For achieving the above object, the present invention by the following technical solutions:
A detection method for vehicle-mounted DVR video data memory integrity, comprises the steps:
Step 1, building database; Vehicle motor starts, and gathers the timing node information started, records this timing node information and be stored in database; When detecting that vehicle motor starts, vehicle-mounted DVR starts, and records this timing node, and video data and timing node information is stored in a database; Obtain video data and store information formation index information, and extract the index information that video data stores the first frame, store in a database;
Step 2, vehicle motor is closed, and gathers the timing node information of closing, records this timing node information and store; When detecting that vehicle motor is closed, vehicle-mounted DVR closes, and stops data storing, records this timing node and store;
Step 3, when requestor requests video storage integrity information, reading database data, obtain engine start-stop time information and vehicle-mounted DVR start-stop time information and be treated to time interval information, send to requesting party in the mode of time period, the described time period comprises engine start-stop time section and vehicle-mounted DVR start-stop time section; Judge that whether the time of vehicle-mounted DVR start-stop time section is continuous, time is discontinuous is break period, and be engine start-stop time or video data non-memory time to distinguishing break period, if the engine start-stop time is then considered as normally, if video data non-memory time, then record this time and store;
The Time Continuous of described vehicle-mounted DVR start and stop section refers to deploying troops on garrison duty in the time in DVR video recording, and after the start-stop time removing engine, just think that video recording continuously, otherwise it is discontinuous to record a video if video recording is continuous print;
Step 4, requesting party receives time period data, shows in patterned mode.
As preferably, the index information of described step 1 is stored the key frame of information timestamp information by video data is formed.
As preferably, in described step 4, the time period data received are divided into two classes: video storage interval and engine stop interval, the time interval of adjacent two time periods is expressed as without video data or engine stop interval, engine stop interval is considered as normal condition, shows in coherent consistent mode.
As preferably, in described step 4, differentiation display is carried out at video storage interval and engine stop interval.
Beneficial effect of the present invention is:
1, the present invention is to the index of video data based on key frame, and integrity detection based on key frame index, thus can realize high-precision integrity detection, detects accuracy high, can be accurate to level second.
2, detection speed is fast.The present invention is stored by the light-duty relational database mode of vehicle-mounted DVR integrity information, thus can search for whole implementations fast, after user's request msg, can obtain video record integrity detection result.
3, Consumer's Experience is good.Video data integrity detection of the present invention, evades the impact of vehicle start and stop information, adopts uniform view mode to show with patterned way, can allow the open-and-shut integrality situation of checking video data of user, and Consumer's Experience is good.
Other advantages of the present invention, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, or can be instructed from the practice of the present invention.Target of the present invention and other advantages can be realized by structure specifically noted in specification below or accompanying drawing and be obtained.
Accompanying drawing explanation
Fig. 1 is method flow diagram of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, the present invention includes following steps:
Step 1, building database; Vehicle motor starts, and gathers the timing node information started, records this timing node information and be stored in database; When detecting that vehicle motor starts, vehicle-mounted DVR starts, and records this timing node, and video data and timing node information is stored in a database; Obtain video data and store information, the timestamp information being stored the key frame of information by video data forms index information, and extracts the index information that video data stores the first frame, stores in a database.Step 2, vehicle motor is closed, and gathers the timing node information of closing, records this timing node information and store; When detecting that vehicle motor is closed, vehicle-mounted DVR closes, and stops data storing, records this timing node and store.
Step 3, when requestor requests video storage integrity information, reading database data, obtain engine start-stop time information and vehicle-mounted DVR start-stop time information and be treated to time interval information, send to requesting party in the mode of time period, the described time period comprises engine start-stop time section and vehicle-mounted DVR start-stop time section; Judge that whether the time of vehicle-mounted DVR start-stop time section is continuous, time is discontinuous is break period, and be engine start-stop time or video data non-memory time to distinguishing break period, if the engine start-stop time is then considered as normally, if video data non-memory time, then record this time and store.
Step 4, requesting party receives time period data, shows in patterned mode.The time period data received are divided into two classes: video storage interval and engine stop interval, the time interval of adjacent two time periods is expressed as without video data or engine stop interval, engine stop interval is considered as normal condition, shows in coherent consistent mode.Differentiation display is carried out at video storage interval and engine stop interval.Whether user can store complete by this view open-and-shut understanding video data, when finding imperfect, getting involved in time and safeguarding.
Principle of the present invention is: extract vehicle motor start and stop information, thus obtain the time period information of engine stop work, inside vehicle-mounted memory device, obtain data storage information, the timestamp information of key frame forms index, and this timestamp information can be accurate to level second.This information overall integrity Informational Expression is multiple different time periods, and this time period can be divided into two classes substantially: (1) video storage interval.(2) vehicle motor stops interval.The time interval of adjacent two time periods is expressed as without video data or engine stop interval, show in patterned mode on interface accordingly, wherein be expressed as different colors with discontinuous continuously, engine stop interval and video stop interval also carrying out differentiation expression.
The present invention is directed to the characteristic that vehicle-mounted DVR data noncontinuity stores, the integrality of vehicle-mounted DVR data is detected from system maintenance personnel angle, the method can the integrality of detection data of quicklook, evade vehicle start and stop information, user, in the incomplete situation of discovery data, gets involved in time, fix a breakdown, as found, memory device damages, and changes the memory device damaged in time, thus the safe and effective operation of support vehicles.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, other amendments that those of ordinary skill in the art make technical scheme of the present invention or equivalently to replace, only otherwise depart from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of right of the present invention.
Claims (4)
1. a detection method for vehicle-mounted DVR video data memory integrity, is characterized in that: comprise the steps:
Step 1, building database; Vehicle motor starts, and gathers the timing node information started, records this timing node information and be stored in database; When detecting that vehicle motor starts, vehicle-mounted DVR starts, and records this timing node, and video data and timing node information is stored in a database; Obtain video data and store information formation index information, and extract the index information that video data stores the first frame, store in a database;
Step 2, vehicle motor is closed, and gathers the timing node information of closing, records this timing node information and store; When detecting that vehicle motor is closed, vehicle-mounted DVR closes, and stops data storing, records this timing node and store;
Step 3, when requestor requests video storage integrity information, reading database data, obtain engine start-stop time information and vehicle-mounted DVR start-stop time information and be treated to time interval information, send to requesting party in the mode of time period, the described time period comprises engine start-stop time section and vehicle-mounted DVR start-stop time section; Judge that whether the time of vehicle-mounted DVR start-stop time section is continuous, time is discontinuous is break period, and be engine start-stop time or video data non-memory time to distinguishing break period, if the engine start-stop time is then considered as normally, if video data non-memory time, then record this time and store;
Step 4, requesting party receives time period data, shows in patterned mode.
2. the detection method of a kind of vehicle-mounted DVR video data memory integrity according to claim 1, is characterized in that: the index information of described step 1 is formed by the timestamp information of the key frame of video data storage information.
3. the detection method of a kind of vehicle-mounted DVR video data memory integrity according to claim 1, it is characterized in that: in described step 4, the time period data received are divided into two classes: video storage interval and engine stop interval, the time interval of adjacent two time periods is expressed as without video data or engine stop interval, engine stop interval is considered as normal condition, shows in coherent consistent mode.
4. the detection method of a kind of vehicle-mounted DVR video data memory integrity according to claim 3, is characterized in that: in described step 4, and differentiation display is carried out at video storage interval and engine stop interval.
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| CN201510171553.8A CN104767994B (en) | 2015-04-13 | 2015-04-13 | A kind of vehicle-mounted DVR video datas store the detection method of integrality |
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| CN110691240A (en) * | 2019-11-05 | 2020-01-14 | 深圳万物安全科技有限公司 | Mobile detection missing recording detection method and device |
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