Based on comprehensive wiring method and the attack early warning method of enclosure wall perimeter security systemTechnical field
The present invention relates to Fibre Optical Sensor, be related specifically to a kind of comprehensive wiring method for perimeter security system based on distributed optical fiber vibration sensing technology and the attack early warning method based on this.
Background technology
Optical fiber sensing technology develops rapidly with the development of Fibre Optical Communication Technology at 20 century 70s, and it is a kind of is carrier with light wave, and optical fiber is medium, a kind of sensing technology of perception and the extraneous measured signal of transmission.These Fibre Optical Sensors can be divided three classes again according to reach: point sensor (as optical fiber micro-bending sensor, optical fiber Fabry-Perot sensor, optical fiber Bragg grating sensor etc.), integrator sensor (as optical fibre Michelson interferometer and Fiber Mach-Zehnder Interferometer), distributed sensor (distributed sensing as based on backward Rayleigh scattering).As the one of distributed sensor, distributed optical fiber vibration sensing system based on C-OTDR not only has electromagnetism interference, anticorrosive, sensitivity high, and there is the advantages such as good concealment, warning registration, structure are simple, few, the easy one-tenth net of active channel resource, be suitable on a large scale, the enclosure wall circumference of long distance carries out Real-Time Monitoring.
Traditional safety-protection system based on distribution type fiber-optic detection, general employing detecting optical cable linear pattern or shaped form are laid in enclosure wall circumference, due to irresistible environmental factors such as wind, rain, strong wind, consequent wrong report occurs often, thus causes the warning accuracy of optical fiber warning system to decline.Therefore, rate of false alarm is as the important indicator parameter of a measurement system performance quality, for effectively reducing misreport of system rate, studying a kind of brand-new optical cable comprehensive wiring method, is that tool is of great significance to the enclosure wall perimeter security system based on distributed optical fiber vibration sensing technology.
Summary of the invention
Object of the present invention overcomes the deficiency of the wire laying mode reply intrusion behavior of the safety-protection system of above-mentioned distribution type fiber-optic detection, provides a kind of comprehensive wiring method based on enclosure wall perimeter security system and attack early warning method.Detecting optical cable wire laying mode of the present invention is used for carrying out Real-Time Monitoring to personnel's intrusion behavior of enclosure wall circumference, is defined as reinforming warning system after intrusion behavior through comprehensive descision, thus lowers False Rate, improves sensitivity and the accuracy rate of early warning.
In order to reach foregoing invention object, the technical scheme that patent of the present invention provides is as follows:
A kind of comprehensive wiring method based on enclosure wall perimeter security system, described enclosure wall perimeter security system comprises optical fiber alert sub-system and upper platform subsystem, described optical fiber alert sub-system and upper platform subsystem are positioned in Control Room, optical fiber alert sub-system and upper platform subsystem communicate to connect, upper platform subsystem to be connected with Terminal Server Client by the Internet and to communicate, this optical fiber alert sub-system is connected with a detecting optical cable, the different parts of this detecting optical cable takes three kinds of system of layings at enclosure wall circumference, be respectively surface to lay, embedding wall lays and buried-pipe laying, described surface is laid and is layed in enclosure wall top by straight for part detection optical cable, embedding wall lay into by part detection fiber cable laying in the groove of enclosure wall outside surface, the laying depth of detecting optical cable in groove is 10cm, buried-pipe laying is by the subsurface of part detection optical cable laying in enclosure wall inside, the degree of depth being embedded in underground detecting optical cable is 50cm, part detection optical cable in above-mentioned three kinds of system of layings is the different parts of same detecting optical cable.
Described optical fiber alert sub-system is distributed optical fiber vibration sensing system, and described upper platform subsystem is host computer.
Utilize the described comprehensive wiring method based on enclosure wall perimeter security system to carry out a method for early warning for Migrant women intrusion behavior, comprise the steps:
The first step, detecting optical cable is laid at enclosure wall circumference, three kinds of modes are taked by the different parts of same detecting optical cable to lay respectively, be respectively that surface is laid, embedding wall lays and buried-pipe laying, the detecting optical cable part that wherein surface is laid is A optical cable, the detecting optical cable part that embedding wall lays is B optical cable, and the detecting optical cable of buried-pipe laying is C optical cable;
Second step, when there being external staff to invade, the early warning signal of described detecting optical cable produces flow process and is: the climbing behavior first being responded to external staff by B optical cable, entered the behavior of enclosure wall inside again by A optical cable induction external staff by high-altitude, finally entered the behavior in enclosure wall again by C optical cable induction external staff;
3rd step, detecting optical cable responds to the above-mentioned intrusion behavior of enclosure wall circumference Migrant women in real time, when intrusion behavior causes local dip, detecting optical cable receives disturbing signal, namely disturbing signal is transferred to optical fiber alert sub-system, warning message is transferred to upper platform subsystem by optical fiber alert sub-system;
4th step, by the external staff behavior signal of optical fiber alert sub-system according to the successively perception of B optical cable, A optical cable and C optical cable, synthetic determination is the early warning signal of invasion;
5th step, early warning signal is sent to upper platform subsystem by optical fiber alert sub-system to carry out showing and being transmitted through the network to Terminal Server Client.
Based on technique scheme, the present invention has following beneficial effect:
1, comprehensive wiring method of the present invention can carry out Real-Time Monitoring to the safety case of enclosure wall circumference, and whether the analysis of vibration signal that the optical cable of the comprehensive multizone of energy detects is illegal invasion behavior, just sends alerting signal when being only judged to be illegal invasion source;
2, the system of laying utilizing detecting optical cable different, induction external staff invades the event behavior of enclosure wall in real time, and warning determination flow has more logicality, effectively reduces the wrong report situation because environmental factor causes;
3. separate unit monitoring main frame can realize the monitoring of long distance enclosure wall circumference, can reach 10km; The cascade of multiple stage monitoring main frame can realize the monitoring more growing distance;
4. optical fiber itself is that electricity is passive, and not by electromagnetic interference (EMI), is applicable to severe environment applications, and can monitors and early warning the safety case of enclosure wall circumference real-time, online, permanent, round-the-clockly.
Accompanying drawing explanation
Fig. 1 is the schematic layout pattern of the comprehensive wiring method that the present invention is based on enclosure wall perimeter security system;
Fig. 2 the present invention is based on the method for early warning schematic diagram of enclosure wall perimeter security system to intrusion behavior.
Embodiment
We do the comprehensive wiring method based on enclosure wall perimeter security system of the present invention and attack early warning method with specific embodiment by reference to the accompanying drawings and further elaborate below; in the hope of more cheer and bright understanding wiring method of the present invention and method for early warning, but can not limit the scope of the invention with this.
It is the schematic layout pattern of the comprehensive wiring method that the present invention is based on enclosure wall perimeter security system referring to Fig. 1, Fig. 1.As seen from the figure, the described comprehensive wiring method based on enclosure wall perimeter security system, enclosure wall perimeter security system wherein comprises optical fiber alert sub-system and upper platform subsystem, this optical fiber alert sub-system and upper platform subsystem are all positioned in Control Room, optical fiber alert sub-system in Control Room adopts communication line to be connected with between upper platform subsystem, and upper platform subsystem to be also connected with Terminal Server Client by the Internet and to communicate, optical fiber alert sub-system is connected with a detecting optical cable, this detecting optical cable perceptually vibration signal parts and existing.Enclosure wall perimeter security system mainly utilizes probe unit (optical fiber alert sub-system) to gather the vibration signal of detecting optical cable front end induction, by the algorithm discriminance analysis of processing and control element (PCE), is judged as the output of alerting signal.
Above-mentioned detecting optical cable can take three kinds of system of layings on enclosure wall circumference, be respectively that surface is laid, embedding wall lays and buried-pipe laying, it is be layed in enclosure wall top by straight for part detection optical cable that described surface is laid, embedding wall lay into by part detection fiber cable laying in enclosure wall outer surface groove, and buried-pipe laying is by the subsurface of part detection optical cable laying in enclosure wall inside.Part detection optical cable in above-mentioned three kinds of system of layings is the different parts of same detecting optical cable, and namely same detecting optical cable takes different system of layings at the different parts of enclosure wall circumference.
Above-mentioned based in the comprehensive wiring method of enclosure wall perimeter security system, when enclosure wall circumference connects up, be respectively that (A district) is laid on surface, embedding wall lays (B district) and buried-pipe laying (C district); Described surface is laid as being directly layed in enclosure wall top by straight for detecting optical cable, and embedding wall lays the outer surface groove for detecting optical cable being layed in enclosure wall, and the degree of depth in groove is about 10cm; Buried-pipe laying is subsurface detecting optical cable being layed in enclosure wall inside, and the degree of depth being embedded in underground detecting optical cable is about 50cm.Through test of many times, lay at above-mentioned embedding wall and can obtain preferably Effect on Detecting with the set depth of buried-pipe laying.
Above-mentioned detecting optical cable can respond to the intrusion behavior of enclosure wall circumference Migrant women in real time, when intrusion event causes local dip, detecting optical cable is once receive disturbing signal, detecting optical cable transfers to optical fiber alert sub-system the disturbing signal detected, distributed optical fiber vibration sensing system of optical fiber alert sub-system here (also claiming OFSS main frame).Above-mentioned OFSS main frame is probe unit, for responding to the situation such as ambient pressure, vibration in real time, the information transmission collected is analyzed to processing unit.What be connected with OFSS main frame is host computer (upper platform subsystem), and this host computer is signal processing unit, and signal processing unit is used for the data-signal for the treatment of and analysis from read-write cell, carries out the most basic signal transacting work.
Upper platform subsystem can leading subscriber authority, preserves log information, presents warning message as direct control interface for user provides service.
As shown in Figure 2, when utilizing the above-mentioned comprehensive wiring method based on enclosure wall perimeter security system to carry out the early warning of Migrant women intrusion behavior, following form is substantially taked:
The first step, detecting optical cable is laid at enclosure wall circumference, same detecting optical cable takes three kinds of modes to lay respectively, be respectively that surface is laid, embedding wall lays and buried-pipe laying, the detecting optical cable part that wherein surface is laid is A optical cable, the detecting optical cable part that embedding wall lays is B optical cable, and the detecting optical cable of buried-pipe laying is C optical cable;
Second step, when there being external staff to invade, the early warning signal flow process of described detecting optical cable is: the climbing behavior first can being responded to external staff by B optical cable, entered the behavior of enclosure wall inside again by high-altitude by A optical cable induction external staff, the last behavior entered by C optical cable perception external staff again in enclosure wall, if order completes in whole flow process, then intrusion behavior can be regarded as;
3rd step, detecting optical cable responds to the above-mentioned intrusion behavior of enclosure wall circumference Migrant women in real time, and when intrusion behavior causes local dip, detecting optical cable receives disturbing signal, namely disturbing signal is sent to optical fiber alert sub-system.
4th step, this disturbing signal of optical fiber alert sub-system process, by the external staff behavior signal of optical fiber alert sub-system according to the successively perception of B optical cable, A optical cable and C optical cable, synthetic determination is effective attack early warning signal, this early warning signal is converted to digital signal and is sent to upper platform subsystem, and this upper platform subsystem is a host computer;
5th step, after upper platform subsystem receives early warning signal, shows over the display intuitively, and can also be transmitted through the network to Terminal Server Client, and the user being positioned at Terminal Server Client carries out operated from a distance by network.
In above-mentioned workflow, the induced signal that if detecting optical cable is found out can not sequentially be passed on, and three kinds of signal forms all exist, then can not be judged to be that external staff invades, be defined as invalid warning.
Wiring method of the present invention can be used for carrying out Real-Time Monitoring to personnel's intrusion behavior of enclosure wall circumference, the data received are sent to optical fiber warning system, the vibration signal that the optical cable of comprehensive multizone detects, is defined as alerting signal and is sent to upper plateform system again.The present invention provides a kind of brand-new optical cable comprehensive wiring method for enclosure wall perimeter security system, achieves warning function simultaneously, and effectively improves the accuracy of reporting to the police.