CN101867786A - Method and device for monitoring video - Google Patents
Method and device for monitoring video Download PDFInfo
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- CN101867786A CN101867786A CN200910106768A CN200910106768A CN101867786A CN 101867786 A CN101867786 A CN 101867786A CN 200910106768 A CN200910106768 A CN 200910106768A CN 200910106768 A CN200910106768 A CN 200910106768A CN 101867786 A CN101867786 A CN 101867786A
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- media stream
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
- G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
- G08B13/19665—Details related to the storage of video surveillance data
- G08B13/19676—Temporary storage, e.g. cyclic memory, buffer storage on pre-alarm
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4331—Caching operations, e.g. of an advertisement for later insertion during playback
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4334—Recording operations
Abstract
The invention discloses a method for monitoring a video. The method comprises the following steps of: A, setting a pre-recording time length X; B, dynamically writing real-time media stream in X period of time before a current moment in a pre-recording cache module; C, when an alarm is triggered, writing the real-time media stream taking an alarm moment as a starting point in a disc and writing the medium stream in the X period of time before the alarm moment stored in the pre-recording cache module in the disc; and D, after the alarm is released, stopping writing the real-time media stream after the alarm moment in the disc and returning to step B. Due to the adoption of the method and a device for monitoring the video, storage space is saved and the media stream in a period of time before the start of the alarm can be recorded. The media stream has important reference significance for the investigation of alarm cases, thereby bringing convenience to video monitoring personnel.
Description
Technical field
The invention belongs to field of video monitoring, relate in particular to a kind of video frequency monitoring method and device.
Background technology
Existing video monitoring system is generally caught real-time monitor message by watch-dogs such as camera, The Cloud Terraces, the real-time media stream of gathering all is recorded in the memory module and by client devices such as computers plays.For the memory space of saving disk and the performance of protecting disk; at present; a lot of video monitoring systems have all adopted the video monitoring mode of reporting to the police and triggering; promptly when system detects warning message or monitor staff's unusual circumstance; start warning system at once, constantly begin from reporting to the police real-time media stream is write disk for client terminal playing, inquiry and management.This mode can effectively utilize disk storage space, alleviate the work load of memory module, yet, real-time media stream before reporting to the police constantly in a period of time is not kept in the disk, and these information are often most important, very crucial clue or reference can be provided for investigation, judgement and the analysis of case, and therefore this monitor mode remains in some defectives.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the deficiencies in the prior art, and a kind of saving memory space is provided, and can write down report to the police constantly before the video frequency monitoring method and the device of Media Stream in a period of time.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of video frequency monitoring method comprises following steps:
A. set the duration X that pre-records;
B. the real-time media stream of X in the period before in the cache module of pre-recording, dynamically writing current time;
C. reporting to the police when triggering, will constantly be that the real-time media stream of starting point writes disk to report to the police, and the Media Stream in the X period writes disk before the warning of storing in the cache module of will pre-recording constantly;
D. during alarm release, stop the real-time media stream after reporting to the police is constantly write disk, and return step B.
Among the described step B, be provided with buffer queue in the described cache module of pre-recording, the Media Stream of X in the period before the current time write this buffer queue, this buffer queue returns formation head and writes Media Stream again after being write and expiring.
Among the described step C, will constantly be that the real-time media stream of starting point writes disk by the cache module of pre-recording to report to the police.
Among the described step D, when triggering new warning again before the current alarm release, then wait for after All Alerts is removed stopping again real-time media stream is write disk.
A kind of video monitoring apparatus comprises: video monitoring front-end, control module, memory module, pre-record cache module and client;
Video monitoring front-end is used for gathering and the coding real-time media stream, and sends it to pre-record cache module and memory module;
The cache module of pre-recording is used for dynamically writing the real-time media stream in the X period before the current time, reports to the police when triggering, and the real-time media stream that this cache module of pre-recording will constantly be starting point to report to the police writes disk;
Be provided with disk in the memory module, be used to preserve monitoring media stream and it is transmitted to client, report to the police when triggering, the Media Stream before the warning constantly in the X period writes disk, and during alarm release, the real-time media stream after the moment of reporting to the police stops to write disk;
Control module is used for triggering or remove commands for controlling monitoring media stream according to reporting to the police and writes disk, also comprises the duration setting module of pre-recording in the described control module;
Client is used for receiving, decode and plays the monitoring media stream of memory module.
Be provided with buffer queue in the described cache module of pre-recording, described buffer queue is used to write the real-time media stream of current time in the X period before, and buffer queue returns the formation stem and writes Media Stream again after writing and expiring.
The real-time media stream that the described cache module of pre-recording also is used for to report to the police constantly being starting point writes disk.
Described cache module and the memory module of pre-recording is arranged on same physical location.
Described video monitoring front-end comprises at least one watch-dog, described client comprises at least one client device, described memory module comprises storage server, and described disk is arranged in the storage server, and described watch-dog all is connected by network with client device.
The invention has the beneficial effects as follows, video frequency monitoring method of the present invention and device can write down the Media Stream of reporting to the police after triggering, can also write down the real-time media stream in a period of time before reporting to the police constantly, because only with the stream of the monitoring media in effective time but not all real-time media stream writes disk, thereby saved disk space, protected disk performance; And the video information before reporting to the police constantly often can write down clue relevant with case or information, and the investigation and the analysis of case all had important significance, thereby provides convenience for monitor staff's work.
Description of drawings
Fig. 1 is first kind of embodiment schematic diagram of video monitoring apparatus of the present invention;
Fig. 2 is second kind of embodiment schematic diagram of video monitoring apparatus of the present invention;
Fig. 3 is the flow chart of video frequency monitoring method of the present invention.
Embodiment
First embodiment:
Figure 1 shows that first kind of embodiment schematic diagram of video monitoring tape deck of the present invention, comprising: video monitoring front-end 10, memory module 11, the cache module 12 of pre-recording, control module 13 and client 14.
Wherein, video monitoring front-end 10 comprises watch-dog and video encoding module, watch-dog for example camera, The Cloud Terrace etc. can be gathered real-time video information and it is transferred to video encoding module, video encoding module is encoded to this real-time video information and is made it form real-time media stream, transport stream (TS stream: Transport Stream) etc., and this real-time media stream is sent to the memory module 11 and the cache module 12 of pre-recording for example.
Be provided with disk in the memory module 11, be used to preserve monitoring media stream, this monitoring media stream comprises the Media Stream of reporting to the police after triggering the Media Stream in the X period before and reporting to the police constantly, and memory module 11 can circulate this monitoring media according to the instruction of client 14 issue client 14; Being provided with buffer unit in 11 in the memory module, reporting to the police when triggering, constantly is that the real-time media stream of starting point writes disk by this buffer unit to report to the police.
The cache module 12 of pre-recording is used to receive the real-time media stream from video monitoring front-end 10, and dynamically writes the real-time media stream of current time in the X period before; Pre-recording can be provided with a buffer queue in the cache module 12, writes the real-time media stream in the X period before the current time in this buffer queue, buffer queue write full after, return the formation stem and write Media Stream again.
Because the memory module 11 and the cache module 12 of pre-recording all can receive the real-time media stream from video control front end 10, in order to simplify the overall structure of video monitoring apparatus, both can be arranged on same physical location.
Second kind of embodiment:
Fig. 2 is second kind of embodiment schematic diagram of video monitoring tape deck of the present invention, and is similar with Fig. 1.
In this embodiment, report to the police when triggering, the cache module 12 replacement memory modules 11 of pre-recording will constantly be that the Media Stream of starting point writes disk to report to the police, in this execution mode, the Media Stream that memory module 11 does not need to be provided for specially after reporting to the police constantly writes the spatial cache of disk, thereby has simplified device.Be provided with buffer queue if pre-record in the cache module 12, when report to the police triggering, the Media Stream of X in the period in this buffer queue write disk, and will constantly be that the real-time media stream of starting point writes disk to report to the police still by this buffer queue.
Fig. 3 is the flow chart of video monitoring recording method of the present invention, and its concrete steps are as follows:
Step S100: the duration X that pre-records is set.
Step S101: the real-time media stream of X in the period before in the cache module of pre-recording, dynamically writing current time.
Step S102: report to the police and trigger, can be by automatic alarm system or client terminal start-up.
Step S103: monitoring media stream is write disk.In the execution mode shown in Figure 1, control module 13 indication control modules 11 will constantly be that the real-time media stream of starting point writes disk to report to the police, and indication pre-record cache module 12 will report to the police constantly before interior Media Stream of X period write disk; In execution mode shown in Figure 2, the control module 13 indication cache module 12 of pre-recording will constantly be that the real-time media stream of starting point writes disk to report to the police, and interior Media Stream of X period writes disk before will reporting to the police constantly.
Step S104: judge whether All Alerts is removed, if, then enter step S106, wait for alarm release otherwise enter among the step S105.
Step S105:, wait for that then All Alerts all removes if all warnings are removed as yet.
Step S106: after the All Alerts contact, stop the real-time media stream after reporting to the police is constantly write disk.In the execution mode shown in Figure 1, control module 13 indication control modules 11 stop the real-time media stream after reporting to the police is constantly write disk, in the described execution mode of Fig. 2, the control module 13 indication cache module 12 of pre-recording stops that later real-time media stream writes disk with reporting to the police constantly, and gets back to step S101 and circulate.
The effect of step S104 and S105 is, when triggering new warning again before the current alarm release, then waits for after All Alerts is removed stopping real-time media stream is write disk again.When occurring repeatedly the alarm monitoring task in the system, interruption logging not, but will prolong after the concluding time is with writing disk continuously to the monitoring media stream between the last alarm release before reporting to the police for the first time, so that the monitor staff can access complete information.
In this video frequency monitoring method, can change the duration of pre-recording by the duration setting module of pre-recording in the control module 13.Duration is 0 if pre-record, and does not promptly need the Media Stream before reporting to the police is constantly write disk, directly will constantly be that the Media Stream of starting point writes disk to report to the police.
Video monitoring front-end 10 in the video monitoring apparatus of the present invention can comprise many watch-dogs that are arranged on diverse location, angle or distance, can enlarge monitoring range and strengthen control and monitoring; Client 14 can comprise many client devices, is provided with storage server in the memory module, and disk is located on this storage server.These watch-dogs and customer equipment link together by network, and every watch-dog and customer equipment all can be used as a network element, and being convenient to the user can carry out remote monitoring by the watch-dog of appointment.
In the video monitoring apparatus of present embodiment, do not need all to deposit all real-time media streams in disk, thereby saved disk space, and protected disk performance, improved its operating efficiency by the reading and writing number of times that has reduced disk; This method and apparatus has not only write down the real-time media stream of reporting to the police after triggering, and write down to report to the police and triggered interior for the previous period real-time media stream, crucial clue or information before Nei video information often can be caught and be reported to the police during this period of time, investigation and analysis to case all have important significance, therefore provide convenience for monitoring work.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. video frequency monitoring method comprises following steps:
A. set the duration X that pre-records;
B. the real-time media stream of X in the period before in the cache module of pre-recording, dynamically writing current time;
C. reporting to the police when triggering, will constantly be that the real-time media stream of starting point writes disk to report to the police, and the Media Stream in the X period writes disk before the warning of storing in the cache module of will pre-recording constantly;
D. during alarm release, stop the real-time media stream after reporting to the police is constantly write disk, and return step B.
2. method according to claim 1, it is characterized in that: among the described step B, be provided with buffer queue in the described cache module of pre-recording, the Media Stream of X in the period before the current time write this buffer queue, this buffer queue returns formation head and writes Media Stream again after being write and expiring.
3. method according to claim 1 and 2 is characterized in that: among the described step C, will constantly be that the real-time media stream of starting point writes disk by the cache module of pre-recording to report to the police.
4. method according to claim 1 and 2 is characterized in that: among the described step D, when triggering new warning again before the current alarm release, then wait for after All Alerts is removed stopping real-time media stream is write disk again.
5. method according to claim 3 is characterized in that: among the described step D, when triggering new warning again before the current alarm release, then wait for after All Alerts is removed stopping real-time media stream is write disk again.
6. a video monitoring apparatus is characterized in that, comprising: video monitoring front-end, control module, memory module, pre-record cache module and client;
Video monitoring front-end is used for gathering and the coding real-time media stream, and sends it to pre-record cache module and memory module;
The cache module of pre-recording is used for dynamically writing the real-time media stream in the X period before the current time, reports to the police when triggering, and the real-time media stream that this cache module of pre-recording will constantly be starting point to report to the police writes disk;
Be provided with disk in the memory module, be used to preserve monitoring media stream and it is transmitted to client, report to the police when triggering, the Media Stream before the warning constantly in the X period writes disk, and during alarm release, the real-time media stream after the moment of reporting to the police stops to write disk;
Control module is used for triggering or remove commands for controlling monitoring media stream according to reporting to the police and writes disk, also comprises the duration setting module of pre-recording in the described control module;
Client is used for receiving, decode and plays the monitoring media stream of memory module.
7. video monitoring apparatus according to claim 6, it is characterized in that: be provided with buffer queue in the described cache module of pre-recording, described buffer queue is used to write the real-time media stream of current time in the X period before, and buffer queue returns the formation stem and writes Media Stream again after writing and expiring.
8. according to claim 6 or 7 described video monitoring apparatus, it is characterized in that: the real-time media stream that the described cache module of pre-recording also is used for to report to the police constantly being starting point writes disk.
9. according to each described video monitoring apparatus in the claim 6 to 8, it is characterized in that: described cache module and the memory module of pre-recording is arranged on same physical location.
10. according to each described video monitoring apparatus in the claim 6 to 9, it is characterized in that: described video monitoring front-end comprises at least one watch-dog, described client comprises at least one client device, described memory module comprises storage server, described disk is arranged in the storage server, and described watch-dog all is connected by network with client device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910106768A CN101867786A (en) | 2009-04-20 | 2009-04-20 | Method and device for monitoring video |
| PCT/CN2009/075863 WO2010121475A1 (en) | 2009-04-20 | 2009-12-23 | Method for video monitoring and apparatus thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910106768A CN101867786A (en) | 2009-04-20 | 2009-04-20 | Method and device for monitoring video |
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| Publication Number | Publication Date |
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| CN101867786A true CN101867786A (en) | 2010-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910106768A Pending CN101867786A (en) | 2009-04-20 | 2009-04-20 | Method and device for monitoring video |
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|---|---|
| CN (1) | CN101867786A (en) |
| WO (1) | WO2010121475A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102148960A (en) * | 2010-02-10 | 2011-08-10 | 北京中星微电子有限公司 | Method for rapid playback of real-time monitoring system and real-time monitoring process |
| CN102231821A (en) * | 2011-06-23 | 2011-11-02 | 深圳中兴力维技术有限公司 | Data storage method applied in remote video monitoring system and system thereof |
| CN102857732A (en) * | 2012-05-25 | 2013-01-02 | 华为技术有限公司 | Picture control method, device and system for multi-picture video conferences |
| CN102938829A (en) * | 2012-10-12 | 2013-02-20 | 天津市亚安科技股份有限公司 | Method for realizing prerecording of real-time audio/video stream |
| CN103647935A (en) * | 2013-11-19 | 2014-03-19 | 长沙中联重科环卫机械有限公司 | Method for storing video data and video monitoring device |
| CN104301688A (en) * | 2014-10-29 | 2015-01-21 | 杭州凯达电力建设有限公司 | Method and system for monitoring sounds |
| CN104683738A (en) * | 2013-11-28 | 2015-06-03 | 杭州海康威视数字技术股份有限公司 | Method for storing vehicle-mounted DVR (Digital Video Recorder) alarm recording fragments |
| CN104683740A (en) * | 2013-11-27 | 2015-06-03 | 杭州海康威视数字技术股份有限公司 | Method and system for non-real-time video relevant alarm in video monitoring |
| CN105338279A (en) * | 2015-09-28 | 2016-02-17 | 中安消物联传感（深圳）有限公司 | Control method for video prerecording and alarm system linkage |
| WO2017124800A1 (en) * | 2016-01-21 | 2017-07-27 | 杭州海康威视数字技术股份有限公司 | Pre-event video recording method and device |
| CN107093436A (en) * | 2017-03-10 | 2017-08-25 | 青岛海信移动通信技术股份有限公司 | The storage method and device of the audio, video data pre-recorded, mobile terminal |
| CN110069659A (en) * | 2019-04-23 | 2019-07-30 | 上海天诚比集科技有限公司 | Alarm event video pictures store method based on round-robin queue |
| WO2020220951A1 (en) * | 2019-04-29 | 2020-11-05 | 杭州海康威视数字技术股份有限公司 | Video recording data storage method and device |
| CN112202990A (en) * | 2020-09-14 | 2021-01-08 | 深圳市百川安防科技有限公司 | Video prerecording method, camera and electronic equipment |
| CN112764709A (en) * | 2021-01-07 | 2021-05-07 | 北京创世云科技股份有限公司 | Sound card data processing method and device and electronic equipment |
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| CN104683740A (en) * | 2013-11-27 | 2015-06-03 | 杭州海康威视数字技术股份有限公司 | Method and system for non-real-time video relevant alarm in video monitoring |
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| CN104683738B (en) * | 2013-11-28 | 2019-05-24 | 杭州海康威视数字技术股份有限公司 | A method of storing vehicle-mounted DVR alarm video clip |
| CN104301688A (en) * | 2014-10-29 | 2015-01-21 | 杭州凯达电力建设有限公司 | Method and system for monitoring sounds |
| CN105338279A (en) * | 2015-09-28 | 2016-02-17 | 中安消物联传感（深圳）有限公司 | Control method for video prerecording and alarm system linkage |
| WO2017124800A1 (en) * | 2016-01-21 | 2017-07-27 | 杭州海康威视数字技术股份有限公司 | Pre-event video recording method and device |
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| CN107093436B (en) * | 2017-03-10 | 2020-02-04 | 青岛海信移动通信技术股份有限公司 | Prerecorded audio and video data storage method and device and mobile terminal |
| CN110069659A (en) * | 2019-04-23 | 2019-07-30 | 上海天诚比集科技有限公司 | Alarm event video pictures store method based on round-robin queue |
| WO2020220951A1 (en) * | 2019-04-29 | 2020-11-05 | 杭州海康威视数字技术股份有限公司 | Video recording data storage method and device |
| CN112202990A (en) * | 2020-09-14 | 2021-01-08 | 深圳市百川安防科技有限公司 | Video prerecording method, camera and electronic equipment |
| CN112202990B (en) * | 2020-09-14 | 2021-05-11 | 深圳市睿联技术股份有限公司 | Video prerecording method, camera and electronic equipment |
| CN112764709A (en) * | 2021-01-07 | 2021-05-07 | 北京创世云科技股份有限公司 | Sound card data processing method and device and electronic equipment |
| CN112764709B (en) * | 2021-01-07 | 2021-09-21 | 北京创世云科技股份有限公司 | Sound card data processing method and device and electronic equipment |
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| WO2010121475A1 (en) | 2010-10-28 |
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