CN202916936U - Video monitoring optical fiber fence system - Google Patents
Video monitoring optical fiber fence system Download PDFInfo
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- CN202916936U CN202916936U CN 201220567728 CN201220567728U CN202916936U CN 202916936 U CN202916936 U CN 202916936U CN 201220567728 CN201220567728 CN 201220567728 CN 201220567728 U CN201220567728 U CN 201220567728U CN 202916936 U CN202916936 U CN 202916936U
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Abstract
The present utility model discloses a video monitoring optical fiber fence system. perception optical fibers of an optical fiber fence unit of the system are laid on the circumference of a monitored area, and connected with a data processing unit through a photoelectric demodulation module; and video data transmission control equipment of a video monitoring unit is also connected with the data processing unit and connected with a plurality of video probes arranged on the circumference of the monitored area through video data transmission cables. When in use, a background database for establishing each optical fiber and a background image library for establishing each video probe are first initiated and then stored. The data processing unit is used for finding abnormal disturbance information of the optical fiber fence, positioning an abnormal disturbance point, retrieving video images of the point, comparing with the normal image data of the background image library, judging whether invasion exists or not and then giving out an alarm. In the system, real-time monitoring and automatic operation can be realized, sensitivity is high, a false alarm is almost non-existing, and guard is not necessary.
Description
Technical field
The utility model belongs to the monitoring technique field, is specifically related to a kind of video monitoring fiber fence system.
Background technology
One of task that the security protection supervisory system is main is exactly Real time identification circumference intrusion event, and fiber fence and video monitoring play an important role in safety defense monitoring system respectively.
Fiber fence represents present state-of-the-art security and guard technology, by sensor fibre pattern-recognition is carried out in the perception of the unusual perturbation of fence circumference, thereby can judge whether that intrusion behavior occurs and accurately locate the invasion position.Fiber fence has long monitoring range, and the monitoring distance can reach tens kilometers, and has highly sensitive, the advantages such as reliability is high, antijamming capability is strong, the strong adaptability that uses, anti-electromagnetic interference (EMI), can monitor frontier defense line, important large building etc.But because fiber fence relies on Fibre Optical Sensor that the detection senses of perturbation signal is judged intrusion behavior, so when wind and rain weather, and some animal also may be judged as intrusion behavior when passing by, and causes false alarms, makes troubles to use.
Video monitoring system is the monitored picture of catching guarded region by the video frequency pick-up head of distribution many places, monitors manually whether each monitored picture identification has abnormal behaviour to occur, and its monitoring effect is directly perceived, is difficult for producing false alarms.Video monitoring system extensively is used in residential quarter, market and other important areas.Yet video monitoring system relies on a plurality of video pictures of artificial Real Time Monitoring, needs fixing monitoring operator on duty to monitor continuously, and long-time supervision causes watch's eye fatigue easily, unavoidably can leak the picture of abnormal behaviour, causes and fails to report the police.
The utility model content
The utility model is the shortcoming of using separately at present fiber fence or video monitoring in order to overcome, a kind of video monitoring fiber fence system is provided, the advantage of fiber fence and video monitoring is organically combined, obtains the highly sensitive circumference monitoring instruction system of few false-alarm.
The video monitoring fiber fence system of the utility model design comprises the fiber fence unit, and fiber fence unit chief component is light source, photoelectricity demodulation module and perception optical fiber; The light of light source output is sent into perception optical fiber, perception optical fiber return terminal access photoelectricity demodulation module.Perception optical fiber is layed on the circumference of guarded region, and the photoelectricity demodulation module comprises demodulation optical texture and photoelectric switching circuit, signal amplification and filtering circuit and the analog to digital conversion circuit corresponding to perception optical fiber that connects successively.Native system also includes data processing unit and video monitoring unit.Data processing unit is the data processing server main frame that contains video and perturbation combined signal analysis software, and is connected to man-machine interface.Video monitoring unit chief component is video probe, video data transmitting opertaing device and video data transmitting cable.The video data transmitting opertaing device connects a plurality of video probes through the video data transmitting cable.The guarded region circumference equal intervals that a plurality of video probes are laid at perception optical fiber distributes.The equal connection data processing unit of the output signal of the photoelectricity demodulation module of fiber fence unit and the video data transmitting opertaing device of video monitoring unit.
Described perception optical fiber is the optical fiber cable of the vibration sensing of special armouring.
The light source of described fiber fence unit is the narrow linewidth pulsed laser source, and the demodulation optical texture of photoelectricity demodulation module is phase sensitive optical time domain reflectometer (φ-OTDR);
Perhaps the light source of described fiber fence unit is the narrow linewidth continuous laser source, and the demodulation optical texture of photoelectricity demodulation module is Mach Zehnder interference instrument (MZI) or Sagnac interferometer (Sagnac).
The video data transmitting cable of described video monitoring unit is cable or optical fiber.
The physical address of each video probe of described video monitoring unit is furnished with unique coding, is stored in the video data transmitting opertaing device.
Described data processing unit connects warning device.
The utility model video monitoring fiber fence system carries out first system initialization when using, light source will be surveyed light signal and be injected into perception optical fiber, the perceived light signal that returns from perception optical fiber enters the photoelectricity demodulation module, convert perception optical fiber return signal to treated digital signal by the photoelectricity demodulation module, be transferred to data processing unit, the perception optical fiber return signal under the data processing unit storage normal condition is at the background database of circumference each point; The video data transmitting opertaing device is set up the background image storehouse by the video data transmitting cable by the video that the physical address coding receives under each video probe normal condition, by each video probe background image of code storage.
Fiber fence unit operation, light source will be surveyed light signal and be injected into perception optical fiber, and the digital data transmission that the photoelectricity demodulation module is changed the perceived light optical fiber signaling is to data processing unit;
The operation of video monitoring unit, each video probe is monitored, and each real time video image is sent to the video data transmitting opertaing device, and the video data transmitting opertaing device is sent each real time video image into the data processing unit storage;
The background database of setting up when data processing unit will be accepted data and initialization compares, and without unusual disturbance, situation is normal result be presented on the man-machine interface; Continue to monitor;
When data processing unit receives perceived light optical fiber signaling data, and with the background database disturbing signal that relatively notes abnormalities, data processing unit reads abnormal disturbances signal framing information, and search is in the coding of the video probe that produces the disturbing signal position, transfer the current video image of this encoded video probe, and access the background image of this address from the background image storehouse, pattern-recognition is carried out in both contrasts, determine whether intrusion behavior
If non-intrusion behavior, situation is normal result be presented on the man-machine interface, proceeds simultaneously monitoring;
If intrusion behavior, the video image output that this encoded video probe is current gives the alarm to the intrusion behavior of confirming on man-machine interface; Proceed simultaneously monitoring.
Compared with prior art, the beneficial effect of the utility model video monitoring fiber fence system is: 1, integrated fiber fence and video monitoring, obtained on the one hand high monitoring sensitivity, video monitoring and computing machine automated image analysis are in conjunction with judging accurately whether the abnormal disturbances signal that fiber fence is found is invasion, avoids false-alarm on the other hand; 2, the system monitoring process need not human intervention, need not constantly Attended mode, ignores the situation of break alarm owing to fatigue without the operator on duty.
Description of drawings
Fig. 1 is this video monitoring fiber fence system embodiment structure principle chart.
Embodiment
This video monitoring fiber fence system embodiment comprises data processing unit, video monitoring unit and fiber fence unit as shown in Figure 1.
Data processing unit is the data processing server main frame that contains video and perturbation combined signal analysis software, and is connected to man-machine interface and warning device.The equal connection data processing unit of the output signal of the photoelectricity demodulation module of fiber fence unit and the video data transmitting opertaing device of video monitoring unit.
Fiber fence unit chief component is light source, photoelectricity demodulation module and perception optical fiber; The light of light source output is sent into perception optical fiber, perception optical fiber return terminal access photoelectricity demodulation module.Perception optical fiber is layed on the circumference of guarded region, and the photoelectricity demodulation module comprises demodulation optical texture and photoelectric switching circuit, signal amplification and filtering circuit and the analog to digital conversion circuit corresponding to perception optical fiber that connects successively.Described perception optical fiber is the optical fiber cable of the vibration sensing of special armouring.The light source of this routine fiber fence unit is the narrow linewidth pulsed laser source, and the demodulation optical texture of photoelectricity demodulation module is the phase sensitive optical time domain reflectometer.The light source of described fiber fence unit also can adopt the narrow linewidth continuous laser source, and the demodulation optical texture of photoelectricity demodulation module is adapted Mach Zehnder interference instrument (MZI) or Sagnac interferometer (Sagnac) then.
Video monitoring unit chief component is video probe, video data transmitting opertaing device and video data transmitting cable.The video data transmitting opertaing device connects a plurality of video probes through the video data transmitting cable.The guarded region circumference equal intervals that a plurality of video probes are laid at perception optical fiber distributes.The video data transmitting cable of this routine video monitoring unit is optical fiber.The physical address of each video probe of described video monitoring unit is furnished with unique coding, is stored in the video data transmitting opertaing device.
Above-described embodiment only is the specific case that the purpose of this utility model, technical scheme and beneficial effect are further described, and the utility model is not to be defined in this.All any modifications of within scope of disclosure of the present utility model, making, be equal to replacement, improvement etc., all be included within the protection domain of the present utility model.
Claims (6)
1. video monitoring fiber fence system comprises the fiber fence unit, and fiber fence unit chief component is light source, photoelectricity demodulation module and perception optical fiber; The light of light source output is sent into perception optical fiber, perception optical fiber return terminal access photoelectricity demodulation module, perception optical fiber is layed on the circumference of guarded region, and the photoelectricity demodulation module comprises demodulation optical texture and photoelectric switching circuit, signal amplification and filtering circuit and the analog to digital conversion circuit corresponding to perception optical fiber that connects successively; It is characterized in that:
Described video monitoring fiber fence system also includes data processing unit and video monitoring unit; Data processing unit is the data processing server main frame that contains video and perturbation combined signal analysis software, and is connected to man-machine interface; Video monitoring unit chief component is video probe, video data transmitting opertaing device and video data transmitting cable, the video data transmitting opertaing device connects a plurality of video probes through the video data transmitting cable, and the guarded region circumference equal intervals that a plurality of video probes are laid at perception optical fiber distributes; The equal connection data processing unit of the output signal of the photoelectricity demodulation module of fiber fence unit and the video data transmitting opertaing device of video monitoring unit.
2. video monitoring fiber fence according to claim 1 system is characterized in that:
Described perception optical fiber is the optical fiber cable of the vibration sensing of special armouring.
3. video monitoring fiber fence according to claim 1 system is characterized in that:
The light source of described fiber fence unit is the narrow linewidth pulsed laser source, and the demodulation optical texture of photoelectricity demodulation module is the phase sensitive optical time domain reflectometer;
Perhaps the light source of described fiber fence unit is the narrow linewidth continuous laser source, and the demodulation optical texture of photoelectricity demodulation module is Mach Zehnder interference instrument or Sagnac interferometer.
4. video monitoring fiber fence according to claim 1 system is characterized in that:
The video data transmitting cable of described video monitoring unit is cable or optical fiber.
5. video monitoring fiber fence according to claim 1 system is characterized in that:
The physical address of each video probe of described video monitoring unit is furnished with unique coding, is stored in the video data transmitting opertaing device.
6. video monitoring fiber fence according to claim 1 system is characterized in that:
Described data processing unit connects warning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220567728 CN202916936U (en) | 2012-10-31 | 2012-10-31 | Video monitoring optical fiber fence system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220567728 CN202916936U (en) | 2012-10-31 | 2012-10-31 | Video monitoring optical fiber fence system |
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| CN202916936U true CN202916936U (en) | 2013-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220567728 Expired - Lifetime CN202916936U (en) | 2012-10-31 | 2012-10-31 | Video monitoring optical fiber fence system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102982639A (en) * | 2012-10-31 | 2013-03-20 | 中国电子科技集团公司第三十四研究所 | Video monitoring optical fiber fence system and using method thereof |
| CN105684432A (en) * | 2016-01-11 | 2016-06-15 | 张北江 | Realizing method and realizing system of intelligent monitoring system |
| CN105825606A (en) * | 2016-06-01 | 2016-08-03 | 北京佳讯飞鸿电气股份有限公司 | Perimeter security and protection system |
| CN115035667A (en) * | 2022-05-13 | 2022-09-09 | 南京邮电大学 | Photon fence system for optical fiber mode division multiplexing real-time video transmission |
-
2012
- 2012-10-31 CN CN 201220567728 patent/CN202916936U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102982639A (en) * | 2012-10-31 | 2013-03-20 | 中国电子科技集团公司第三十四研究所 | Video monitoring optical fiber fence system and using method thereof |
| CN105684432A (en) * | 2016-01-11 | 2016-06-15 | 张北江 | Realizing method and realizing system of intelligent monitoring system |
| WO2017120692A1 (en) * | 2016-01-11 | 2017-07-20 | 张北江 | Method and system for implementing intelligent surveillance system |
| CN105825606A (en) * | 2016-06-01 | 2016-08-03 | 北京佳讯飞鸿电气股份有限公司 | Perimeter security and protection system |
| CN115035667A (en) * | 2022-05-13 | 2022-09-09 | 南京邮电大学 | Photon fence system for optical fiber mode division multiplexing real-time video transmission |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: GUILIN DAWEI COMMUNICATIONS TECHNOLOGIES Co. Assignor: NO 34 RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY Group CORPORATION (CETC) Contract record no.: 2014450000033 Denomination of utility model: Video monitoring optical fiber fence system and using method thereof Granted publication date: 20130501 License type: Exclusive License Record date: 20140603 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130501 |