CN106131437A - A kind of Multi net voting video camera method for synchronizing time and system - Google Patents
A kind of Multi net voting video camera method for synchronizing time and system Download PDFInfo
- Publication number
- CN106131437A CN106131437A CN201610727199.7A CN201610727199A CN106131437A CN 106131437 A CN106131437 A CN 106131437A CN 201610727199 A CN201610727199 A CN 201610727199A CN 106131437 A CN106131437 A CN 106131437A
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- CN
- China
- Prior art keywords
- network
- video camera
- web camera
- ieee1588v2
- module
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
- H04N23/661—Transmitting camera control signals through networks, e.g. control via the Internet
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
- H04J3/0658—Clock or time synchronisation among packet nodes
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Abstract
The present invention relates to a kind of Multi net voting video camera method for synchronizing time and system, said method comprising the steps of: S1, implantation IEEE1588v2 agreement in each web camera；S2, each web camera is linked into the boundary clock interface of PIN network supporting IEEE1588v2 agreement；S3, each web camera pass through IEEE1588v2 respectively from PIN Network Capture current time.The present invention is linked into PTN network in the lump by the web camera of multiple support IEEE1588 Ethernets, all can receive, from PTN network, the temporal information synchronized, thus reach the purpose that Multi net voting video camera synchronizes, each web camera can be made to reach the time precision of submicrosecond.
Description
Technical field
The present invention relates to camera supervised field, in particular, relate to a kind of Multi net voting video camera time synchronized side
Method and system.
Background technology
On the one hand, communication network is the trend of adaptation business and the direction of network IPization, business IPization and bearer network IPization
Promoting business transformation and the transition of network of operator, there is limitation in traditional SDH/MSTP and WDM technology, is difficult to adapt to work as
The demand of front IPization.Transmitting net, to develop to packetizing direction be trend of the times, it is desirable to transmit net have flexible, efficient and low become
This capability of packetised transmission.Packet Transport Network (PTN) technology is the direction of bearer network development at present, and the three of current China run greatly
Business (China Mobile, China Telecom, CHINAUNICOM) is made the transition to PTN by traditional SDH/MSTP and WDM on bearer network.Currently
PTN network all support IEEE1588v2 accurate clock synchronization protocol (Precision Time Protocol, PTP), it is possible to provide
The timing tracking accuracy of submicrosecond level, and shared network and hardware resource the most less.
On the other hand, along with the development of Video Supervision Technique, Practical Project uses web camera in a large number, and
The demand of Multi net voting video camera linkage surveillance also gets more and more, it is desirable to the demand of Multi net voting video camera time synchronized also puts on day
Journey.Such as along the video camera linkage surveillance a certain feature vehicle on road, after this vehicle arrives the monitoring range of corresponding video camera, take the photograph
Camera monitors this vehicle automatically, and when vehicle travels out the scope of this video camera being responsible for monitoring, this video camera notifies next
This vehicle is carried out continuing monitoring by individual video camera.
Multiple-camera uses the method for synchronizing time of NTP (NTP) video camera to carry out the time together traditionally
Step, the synchronization accuracy of the method can only achieve Millisecond and comparison is complicated.
Summary of the invention
In view of this, it is necessary to for the problems referred to above, it is provided that a kind of Multi net voting video camera method for synchronizing time and system, logical
The web camera crossing multiple support IEEE1588 Ethernet is linked into PTN network in the lump, all can receive from PTN network and synchronize
Temporal information, thus reach Multi net voting video camera synchronize purpose.
To achieve these goals, technical scheme is as follows:
A kind of Multi net voting video camera method for synchronizing time, comprises the following steps:
S1, in each web camera implant IEEE1588v2 agreement；
S2, each web camera is linked into the boundary clock interface of PIN network supporting IEEE1588v2 agreement；
S3, each web camera pass through IEEE1588v2 respectively from PIN Network Capture current time.
A kind of Multi net voting video camera clock synchronization system, including some supports IEEE1588v2 agreements web camera with
PIN network, the web camera of described some support IEEE1588v2 agreements connects PIN network respectively.
As preferably, described web camera includes IEEE1588 ethernet interface module, CPU module, CMOS
SENSOR module；
Described IEEE1588 ethernet interface module is for the communication with PTN network and from PTN network extraction current time
Temporal information is also sent to CPU module by information；
Described CPU module, for accepting image information from CMOS SENSOR module and encoding image information, encodes
After image information be sent to PTN network by IEEE1588 ethernet interface module, simultaneously from IEEE1588 Ethernet interface
The information that module accepts PTN network includes information lock in time；
Described CMOS SENSOR is used for induced environment image, optical signal is become the signal of telecommunication and is transferred to CPU module.
Compared with prior art, the beneficial effects of the present invention is: the present invention passes through multiple support IEEE1588 Ethernets
Web camera be linked into PTN network in the lump, all can receive, from PTN network, the temporal information synchronized, thus reach many nets
The purpose that network video camera synchronizes, can make each web camera reach the time precision of submicrosecond.
Accompanying drawing explanation
Fig. 1 is the method flow diagram of the embodiment of the present invention；
Fig. 2 is the structured flowchart of the web camera of the embodiment of the present invention；
Fig. 3 be the embodiment of the present invention be embodied as schematic diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawings with embodiment to a kind of Multi net voting video camera method for synchronizing time of the present invention and system
It is described further.
The following is a kind of Multi net voting video camera method for synchronizing time of the present invention and the preferred example of system, not because of
This limits protection scope of the present invention.
Fig. 1 shows a kind of Multi net voting video camera method for synchronizing time, comprises the following steps:
S1, in each web camera implant IEEE1588v2 agreement；
S2, each web camera is linked into the boundary clock interface of PIN network supporting IEEE1588v2 agreement；
S3, each web camera pass through IEEE1588v2 respectively from PIN Network Capture current time.
Fig. 2 and Fig. 3 shows a kind of Multi net voting video camera clock synchronization system, including some support IEEE1588v2 agreements
Web camera and PIN network, the web camera of described some support IEEE1588v2 agreements connects PIN network respectively.
As preferably, described web camera includes IEEE1588 ethernet interface module, CPU module, CMOS
SENSOR module；
Described IEEE1588 ethernet interface module is for the communication with PTN network and from PTN network extraction current time
Temporal information is also sent to CPU module by information；
Described CPU module, for accepting image information from CMOS SENSOR module and encoding image information, encodes
After image information be sent to PTN network by IEEE1588 ethernet interface module, simultaneously from IEEE1588 Ethernet interface
The information that module accepts PTN network includes information lock in time；
Described CMOS SENSOR is used for induced environment image, optical signal is become the signal of telecommunication and is transferred to CPU module.
Compared with prior art, the beneficial effects of the present invention is: the present invention passes through multiple support IEEE1588 Ethernets
Web camera be linked into PTN network in the lump, all can receive, from PTN network, the temporal information synchronized, thus reach many nets
The purpose that network video camera synchronizes, can make each web camera reach the time precision of submicrosecond.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed, but also
Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that, for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these broadly fall into the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (3)
1. a Multi net voting video camera method for synchronizing time, it is characterised in that comprise the following steps:
S1, in each web camera implant IEEE1588v2 agreement；
S2, each web camera is linked into the boundary clock interface of PIN network supporting IEEE1588v2 agreement；
S3, each web camera pass through IEEE1588v2 respectively from PIN Network Capture current time.
2. a Multi net voting video camera clock synchronization system, it is characterised in that include the net of some support IEEE1588v2 agreements
Network video camera and PIN network, the web camera of described some support IEEE1588v2 agreements connects PIN network respectively.
Multi net voting video camera clock synchronization system the most according to claim 2, it is characterised in that described web camera bag
Include IEEE1588 ethernet interface module, CPU module, CMOS SENSOR module；
Described IEEE1588 ethernet interface module is for the communication with PTN network and from PTN network extraction current time information
And temporal information is sent to CPU module；
Described CPU module is for accepting image information from CMOS SENSOR module and encoding image information, after coding
Image information is sent to PTN network by IEEE1588 ethernet interface module, simultaneously from IEEE1588 ethernet interface module
The information accepting PTN network includes information lock in time；
Described CMOS SENSOR is used for induced environment image, optical signal is become the signal of telecommunication and is transferred to CPU module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610727199.7A CN106131437A (en) | 2016-08-25 | 2016-08-25 | A kind of Multi net voting video camera method for synchronizing time and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610727199.7A CN106131437A (en) | 2016-08-25 | 2016-08-25 | A kind of Multi net voting video camera method for synchronizing time and system |
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| Publication Number | Publication Date |
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| CN106131437A true CN106131437A (en) | 2016-11-16 |
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| CN201610727199.7A Pending CN106131437A (en) | 2016-08-25 | 2016-08-25 | A kind of Multi net voting video camera method for synchronizing time and system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111225122A (en) * | 2020-01-19 | 2020-06-02 | 深圳英飞拓科技股份有限公司 | Method for realizing time correcting mechanism in multi-camera video synchronization based on PTP (precision time protocol) |
| CN111277804A (en) * | 2020-03-10 | 2020-06-12 | 北京爱笔科技有限公司 | Image processing method and device and multi-camera synchronization system |
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| CN102215327A (en) * | 2010-04-09 | 2011-10-12 | 索尼公司 | Camera system, camera device, camera controller and relay device |
| CN102215101A (en) * | 2011-05-31 | 2011-10-12 | 中兴通讯股份有限公司 | Time synchronization method and device |
| CN103001721A (en) * | 2012-12-11 | 2013-03-27 | 上海市电力公司 | Application of precision time protocol to smart substation |
| CN104320238A (en) * | 2014-10-21 | 2015-01-28 | 浙江大学 | Seafloor observation network time synchronization method under large traffic background |
| CN105450491A (en) * | 2016-01-04 | 2016-03-30 | 北京北方烽火科技有限公司 | Time synchronization hardware architecture based on 1588 protocol, and time synchronization method |
| WO2016091050A1 (en) * | 2014-12-08 | 2016-06-16 | ***通信集团公司 | Time synchronization method and device |
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- 2016-08-25 CN CN201610727199.7A patent/CN106131437A/en active Pending
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| CN101719818A (en) * | 2008-07-29 | 2010-06-02 | 汤姆森许可贸易公司 | System for generation of a synchronization signal via stations connected via a packet switching network |
| CN102215327A (en) * | 2010-04-09 | 2011-10-12 | 索尼公司 | Camera system, camera device, camera controller and relay device |
| CN102215101A (en) * | 2011-05-31 | 2011-10-12 | 中兴通讯股份有限公司 | Time synchronization method and device |
| CN103001721A (en) * | 2012-12-11 | 2013-03-27 | 上海市电力公司 | Application of precision time protocol to smart substation |
| CN104320238A (en) * | 2014-10-21 | 2015-01-28 | 浙江大学 | Seafloor observation network time synchronization method under large traffic background |
| WO2016091050A1 (en) * | 2014-12-08 | 2016-06-16 | ***通信集团公司 | Time synchronization method and device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111225122A (en) * | 2020-01-19 | 2020-06-02 | 深圳英飞拓科技股份有限公司 | Method for realizing time correcting mechanism in multi-camera video synchronization based on PTP (precision time protocol) |
| CN111277804A (en) * | 2020-03-10 | 2020-06-12 | 北京爱笔科技有限公司 | Image processing method and device and multi-camera synchronization system |
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Application publication date: 20161116 |