CN101833484B - Video backup method and system of vehicle-mounted digital video recorder and video recorder - Google Patents
Video backup method and system of vehicle-mounted digital video recorder and video recorder Download PDFInfo
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- CN101833484B CN101833484B CN201010124578XA CN201010124578A CN101833484B CN 101833484 B CN101833484 B CN 101833484B CN 201010124578X A CN201010124578X A CN 201010124578XA CN 201010124578 A CN201010124578 A CN 201010124578A CN 101833484 B CN101833484 B CN 101833484B
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Abstract
The invention provides video backup method and system of a vehicle-mounted digital video recorder and a video recorder, which are suitable for the monitoring field. The method comprises the following steps of: detecting and identifying mobile storage equipment; acquiring parameter information required by backup video from the mobile storage equipment; and backing up corresponding video data to the mobile storage equipment according to the parameter information required by the backup video. In the embodiment of the invention, the mobile storage equipment is spliced on the vehicle-mounted digital video recorder, and the parameter information required by the backup video is acquired from the mobile storage equipment, thereby the corresponding video data are backed up to the mobile storage equipment according to the parameter information required by the backup video. Thus, the problems that professional technicists are needed to carry out operation when the traditional vehicle-mounted digital video recorder copies the video, the operation process is complex and the error rate is high are solved.
Description
Technical field
The invention belongs to the monitoring field, relate in particular to a kind of video recording backup method, system and video recorder of vehicle-mounted digital video cassette recorder.
Background technology
Public transit vehicle is one of ground occurred frequently of felony such as theft, and (the public security system crime prevention has been alleviated in Digital Video Recorder, appearance DVR) to the vehicle-mounted digital video cassette recorder to a certain extent, follows the trail of active demands such as case.DVR have to image/voice record a video for a long time, the function of recording, telemonitoring and control, gathered five kinds of functions such as video recorder, image splitter, the control of The Cloud Terrace camera lens, controlling alarm, Network Transmission simultaneously.What DVR adopted is digital recording, also is far superior to simulation monitoring equipment at aspects such as Flame Image Process, image storage, retrieval, backup and network delivery, Long-distance Control.DVR has represented the developing direction of supervisory system.
Vehicle-mounted DVR can pass through camera (on bus, generally being each one of preceding middle back), carries out real-time monitoring, is presented at monitored picture on the monitoring screen in real time, and through wireless network, passes to long-range monitor supervision platform.Simultaneously, real-time monitored picture is recorded a video, be stored on the storage medium on the DVR.Problems such as when through wireless network real-time monitored picture being passed to monitor supervision platform, can there be certain hysteresis quality in the influence owing to problems such as the complicacy that receives the vehicle operating environment, wireless network coverage rates, and code check is lower.
Therefore, when there is something special when taking place, just possibly need the professional and technical personnel to remove to copy DVR and go up the real-time video recording of storing.For embedded digital video recorder (DVR), the copy video recording can relate to the carry of movable storage medium, and the inquiry of video recording a series of problems such as duplicate, thereby make operation comparatively complicated, and error rate is high.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of video recording backup method of vehicle-mounted digital video cassette recorder, is intended to solve when the video recording of the existing vehicle-mounted DVR of copy, needs the professional and technical personnel to go operation, and complicated operating process, the problem that error rate is high.
The embodiment of the invention is achieved in that a kind of video recording backup method of vehicle-mounted digital video cassette recorder, said method comprising the steps of:
Detect the identification movable storage device;
File identification is according to a preconcerted arrangement searched identification backup parameter information file in movable storage device, said backup parameter information file carries backup video recording desired parameters information;
From said backup parameter information file, obtain backup video recording desired parameters information;
According to said backup video recording desired parameters information, the data of will recording a video accordingly backup to movable storage device.
Further, also comprise step before in the said step of from said backup parameter information file, obtaining backup video recording desired parameters information:
Security code according to backup parameter information file carries carries out fake certification to backup parameter information file.
Further, also comprise step before in the said step of from said backup parameter information file, obtaining backup video recording desired parameters information:
According to the digital video recorder device id, in said backup parameter information file, find the pairing video recording desired parameters of current digit video cassette recorder information.
Further, said backup video recording desired parameters information comprises size, the passage of the packet that backup start time, Backup end time, video recording type, alternate device, backup generate at least.
Another purpose of the embodiment of the invention is to provide a kind of video recording standby system of vehicle-mounted digital video cassette recorder, and said system comprises:
Detect recognition unit, be used for detecting the identification movable storage device;
Backup parameter information file identification module is used for file identification according to a preconcerted arrangement, in movable storage device, searches identification backup parameter information file, and said backup parameter information file carries backup video recording desired parameters information;
The parameter information acquisition module is used for obtaining backup video recording desired parameters information from said backup parameter information file; And
Video recording data backup unit is used for according to said backup video recording desired parameters information, and the data of will recording a video accordingly backup to movable storage device.
Further, said backup desired parameters information acquisition unit also comprises:
The fake certification module is used for according to backing up the security code that the parameter information file carries backup parameter information file being carried out fake certification.
Further, said backup desired parameters information acquisition unit also comprises:
Search module, be used for device id, in said backup parameter information file, find the pairing video recording desired parameters of current DVR information according to DVR.
In an embodiment of the present invention; Through the movable storage device of on the vehicle-mounted digital video cassette recorder, pegging graft; And from this movable storage device, obtain backup video recording desired parameters information, thereby according to this backup video recording desired parameters information, the data of will recording a video accordingly backup to movable storage device.Like this, just solve existing vehicle-mounted digital video cassette recorder and copied when recording a video, needed the professional and technical personnel to go operation, and complicated operating process, the problem that error rate is high.
Description of drawings
Fig. 1 is the video recording backup method process flow diagram of the vehicle-mounted digital video cassette recorder that provides of the embodiment of the invention;
Fig. 2 is the first example structure synoptic diagram of the backup parameter information file that provides of the embodiment of the invention;
Fig. 3 is the second example structure synoptic diagram of the backup parameter information file that provides of the embodiment of the invention;
Fig. 4 is the structural representation of the video recording standby system of the vehicle-mounted digital video cassette recorder that provides of the embodiment of the invention.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Consult Fig. 1,2,3, wherein, Fig. 1 shows the video recording backup method implementing procedure of the vehicle-mounted digital video cassette recorder that the embodiment of the invention provides, and details are as follows:
In step S101, detect the identification movable storage device.
For embedded digital video recorder (DVR), employing be linux system, movable storage device is carried out need identifying this equipment before the read-write operation.In an embodiment of the present invention, detecting the process of discerning movable storage device is: judge whether to have inserted movable storage device earlier, if inserted, then this movable storage device carry is got up.
Embedded digital video recorder (DVR) with the prepackage linux system is an example, and specify as follows: linux system is not the preemptive type system, that is to say; If a process priority is higher, and operate among the CPU, when it does not finish always; It can't normally withdraw from, and can take CPU always.As embodiments of the invention; Adopt proc, system commands such as Mount judge whether to have added new equipment, and setting makes the priority of the thread that moves this order lower; Thereby can guarantee operation when CPU is idle, when cpu busy, abandon the control of CPU.Like this, just make detection identification thread not only can operate in the CPU idle periods, intermittence also detects identification to movable memory equipment continuously, and the performance of less ground consumption systems.
In step S102, in this movable storage device, obtain backup video recording desired parameters information.
For the ease of obtaining, as embodiments of the invention, can make backup parameter information file in advance, and will back up the parameter information file storage in movable storage device, this backup parameter information file carries backup video recording desired parameters information.
In Fig. 2, disclosed the structure of first embodiment of backup parameter information file, this backup parameter information file comprises file identification, backup video recording desired parameters information.Wherein, backup video recording desired parameters information comprises size, the passage of the packet that backup start time, Backup end time, video recording type, alternate device, backup generate at least.In the present embodiment; In order to back up a plurality of video recording sections; This backup video recording desired parameters information also comprises the video recording section number that will back up, and, size, the passage of the packet that corresponding every period backup start time, Backup end time, video recording type, alternate device, backup generate.
In Fig. 2; Disclosed the structure of second embodiment of backup parameter information file; In order to support video recording to a plurality of DVR equipment; This backup parameter information file comprises: file identification, the corresponding backups video recording desired parameters information of the corresponding backup video recording desired parameters information of the DVR number of devices of support, DVR equipment 1, DVR equipment 2 ..., backup video recording desired parameters information that DVR equipment n is corresponding.In the present embodiment; The backup video recording desired parameters information that DVR equipment is corresponding comprises: device id (is used for unique sign DVR equipment; Like the Mac address), backup video time section number, passage, backup start time, Backup end time, video recording type, alternate device, backup generate the packet size.In the present embodiment; In order to be directed against each DVR; Back up a plurality of video recording sections; This backup video recording desired parameters information also comprises the video recording section number that will back up, and, size, the passage of the packet that corresponding every period backup start time, Backup end time, video recording type, alternate device, backup generate.
For false proof, as embodiments of the invention, can in backup parameter information file, increase the security code of Y byte, wherein Y is the integer more than 1.For example; Can adopt the DVR number of devices of support and the cryptographic hash (cryptographic hash that the DVR facility information obtains through the hash algorithm cryptographic calculation; Be the numerical value that any byte length passes through a regular length that obtains after hash algorithm is encrypted; Hash algorithm is irreversible, and common hash algorithm has MD5,33 algorithms etc.).
Supporting the video recording to a plurality of DVR equipment, and to have the backup parameter information file of security code be example, explain that in movable storage device, to obtain the record a video process of desired parameters information of backup following: file identification according to a preconcerted arrangement; In movable storage device, search backup parameter information file; After finding backup parameter information file, carry out fake certification, after checking is passed through; In this backup parameter information file, find corresponding DVR facility information, thereby obtain backup video recording desired parameters information.
When making backup parameter information file, the generation of automated back-up message file only needs the user to insert the DVR number of devices and the DVR facility information of needs backup.After filling in, calculate encryption, obtain the security code of Y byte, and add the file identification of going up regular length through hash algorithm.Like this, just generate the standard format of automated back-up message file, and then used symmetric key to carry out the standard format of the automated back-up message file that generates is encrypted (when carrying out fake certification, just can utilize this total key to decipher).Like this, just generate the backup parameter information file after the encryption of a particular file name.
In step S103, according to said backup video recording desired parameters information, the data of will recording a video accordingly backup to movable storage device.
Fig. 4 shows the structure of the video recording standby system of the vehicle-mounted digital video cassette recorder that the embodiment of the invention provides, and this video recording standby system can be software unit or hardware cell or the unit soft, that scleroma is closed that is built in the vehicle-mounted digital video cassette recorder.
This system comprises: detect recognition unit 41, backup desired parameters information acquisition unit 42, video recording data backup unit 43.Detect recognition unit 41 and detect the identification movable storage device; Backup desired parameters information acquisition unit 42 is obtained backup video recording desired parameters information in said movable storage device; Video recording data backup unit 43 is according to said backup video recording desired parameters information, and the data of will recording a video accordingly backup to movable storage device.
Wherein, Backup desired parameters information acquisition unit 42 is obtained backup video recording desired parameters information in said movable storage device process can be backup parameter information file identification module 421 file identification according to a preconcerted arrangement; In movable storage device, search identification backup parameter information file; Said backup parameter information file carries backup video recording desired parameters information, and parameter information acquisition module 422 obtains backup video recording desired parameters information from said backup parameter information file.
As embodiments of the invention, backup desired parameters information acquisition unit 42 also comprises fake certification module 423, and the security code that this fake certification module 423 is carried according to backup parameter information file carries out fake certification to backup parameter information file.
As embodiments of the invention, this backup desired parameters information acquisition unit 42 also comprises: search module 424, this searches module 424 according to the DVR device id, in said backup parameter information file, finds the pairing video recording desired parameters of current DVR information.
In sum; In an embodiment of the present invention; Through the movable storage device of on the vehicle-mounted digital video cassette recorder, pegging graft; And from this movable storage device, obtain backup video recording desired parameters information, thereby according to this backup video recording desired parameters information, the data of will recording a video accordingly backup to movable storage device.Like this, just solve existing vehicle-mounted digital video cassette recorder and copied when recording a video, needed the professional and technical personnel to go operation, and complicated operating process, the problem that error rate is high.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. the video recording backup method of a vehicle-mounted digital video cassette recorder is characterized in that, said method comprising the steps of:
Detect the identification movable storage device;
File identification is according to a preconcerted arrangement searched identification backup parameter information file in movable storage device, said backup parameter information file carries backup video recording desired parameters information;
From said backup parameter information file, obtain backup video recording desired parameters information;
According to said backup video recording desired parameters information, the data of will recording a video accordingly backup to movable storage device.
2. according to the video recording backup method of the said vehicle-mounted digital video cassette recorder of claim 1, it is characterized in that, also comprise step before in the said step of from said backup parameter information file, obtaining backup video recording desired parameters information:
Security code according to backup parameter information file carries carries out fake certification to backup parameter information file.
3. according to the video recording backup method of the said vehicle-mounted digital video cassette recorder of claim 1, it is characterized in that, also comprise step before in the said step of from said backup parameter information file, obtaining backup video recording desired parameters information:
According to the digital video recorder device id, in said backup parameter information file, find the pairing video recording desired parameters of current digit video cassette recorder information.
4. according to the video recording backup method of each said vehicle-mounted digital video cassette recorder of claim 1-3; It is characterized in that said backup video recording desired parameters information comprises size, the passage of the packet that backup start time, Backup end time, video recording type, alternate device, backup generate at least.
5. the video recording standby system of a vehicle-mounted digital video cassette recorder is characterized in that, said system comprises:
Detect recognition unit, be used for detecting the identification movable storage device;
Backup desired parameters information acquisition unit is used for obtaining backup video recording desired parameters information at said movable storage device; Comprise: backup parameter information file identification module, be used for file identification according to a preconcerted arrangement, in movable storage device, search identification backup parameter information file, said backup parameter information file carries backup video recording desired parameters information; The parameter information acquisition module is used for obtaining backup video recording desired parameters information from said backup parameter information file; And
Video recording data backup unit is used for according to said backup video recording desired parameters information, and the data of will recording a video accordingly backup to movable storage device.
6. according to the video recording standby system of the said vehicle-mounted digital video cassette recorder of claim 5, it is characterized in that said backup desired parameters information acquisition unit also comprises:
The fake certification module is used for according to backing up the security code that the parameter information file carries backup parameter information file being carried out fake certification.
7. according to the video recording standby system of the said vehicle-mounted digital video cassette recorder of claim 5, it is characterized in that said backup desired parameters information acquisition unit also comprises:
Search module, be used for device id, in said backup parameter information file, find the pairing video recording desired parameters of current DVR information according to DVR.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010124578XA CN101833484B (en) | 2010-03-12 | 2010-03-12 | Video backup method and system of vehicle-mounted digital video recorder and video recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010124578XA CN101833484B (en) | 2010-03-12 | 2010-03-12 | Video backup method and system of vehicle-mounted digital video recorder and video recorder |
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| CN101833484A CN101833484A (en) | 2010-09-15 |
| CN101833484B true CN101833484B (en) | 2012-05-23 |
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| CN201010124578XA Expired - Fee Related CN101833484B (en) | 2010-03-12 | 2010-03-12 | Video backup method and system of vehicle-mounted digital video recorder and video recorder |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI482717B (en) * | 2013-11-08 | 2015-05-01 | Kwang Yang Motor Co | File backup method for locomotive loggers |
| CN105049913B (en) * | 2015-06-30 | 2018-06-15 | 株洲南车时代电气股份有限公司 | Vehicular video data download storage method in a kind of locomotive |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AU2003263093A1 (en) * | 2002-09-06 | 2004-03-29 | Maxtor Corporation | One button external backup |
| US8776137B2 (en) * | 2007-08-10 | 2014-07-08 | At&T Intellectual Property I, Lp | System and methods for digital video recorder backup and recovery |
| CN101159647B (en) * | 2007-10-22 | 2010-06-23 | 中国电信股份有限公司 | System and method of implementing gateway local parameter fast recovery |
| EP2053513A1 (en) * | 2007-10-26 | 2009-04-29 | Gemplus | Method of managing data to be stored from a removable storage device into an online storage area and vice-versa |
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