CN104200592A - Perimeter protection alarm system utilizing linear displacement to detect invasion and linear displacement detector - Google Patents
Perimeter protection alarm system utilizing linear displacement to detect invasion and linear displacement detector Download PDFInfo
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- CN104200592A CN104200592A CN201410499294.7A CN201410499294A CN104200592A CN 104200592 A CN104200592 A CN 104200592A CN 201410499294 A CN201410499294 A CN 201410499294A CN 104200592 A CN104200592 A CN 104200592A
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Abstract
The invention relates to a perimeter protection alarm system utilizing linear displacement to detect invasion and a linear displacement detector. The alarm system comprises a linear displacement detection unit, a linear displacement coding unit, a linear displacement video linking unit, a linear displacement transmitting unit and a linear displacement control host machine. During use, the linear displacement detector of the linear displacement detection unit is mounted on a net fence of the perimeter; when the net fence is invaded, the linear displacement detector outputs an alarm signal to the linear displacement coding unit; the linear displacement coding unit processes the alarm signal, and outputs an alarm encoded signal; the linear displacement video linking unit receives the alarm encoded signal, and sends the alarm encoded signal to a tripod head and the linear displacement control host machine; the tripod head is rotated to an alarm point for monitoring and camera shooting according to preset position arrangement and the alarm encoded signal; a camera transmits a video signal of the alarm point to a hard disk video recorder through the linear displacement transmitting unit. Invade re-check is conducted through the monitoring video, so that an effective perimeter protection function is played.
Description
Technical field
The invention belongs to perimeter protection alarm technique field, be specifically related to a kind of perimeter protection warning system and displacement of the lines detector that utilizes displacement of the lines detecting intrusion.
Background technology
Along with society is constantly progressive, rapid economic development and rapid technological improvement, public order safety, production safety and property safety etc. are more and more subject to people's attention, and safety monitoring system is widely used in industry-by-industry.
At present, on market, the kind of monitoring system is also come more, particularly video monitoring system is the most extensive in monitoring application, but video monitoring system is when monitoring large-scale zone of protection (as the boundary defence of field historical relic security protection), not only need to connect a plurality of cameras and could cover whole region, supervisory system cost is increased greatly; In addition, through people or the car outside boundary defence guard plot fence, not in guard plot, still enter the warning region of supervisory system, also can cause the warning of video monitoring system, increased rate of false alarm.Therefore, need to improve.
Summary of the invention
The object of the invention is to solve above-mentioned technical matters and a kind of perimeter protection warning system and displacement of the lines detector that utilizes displacement of the lines detecting intrusion is provided, can be used for the boundary defence of field historical relic security protection or other need to carry out the object of boundary defence.
For achieving the above object, the present invention adopts following technical scheme:
Utilize a perimeter protection warning system for displacement of the lines detecting intrusion, comprise displacement of the lines probe unit, displacement of the lines coding unit, displacement of the lines video interlink unit, displacement of the lines transmission unit, displacement of the lines main control system;
Described displacement of the lines probe unit includes at least one displacement of the lines detector, described displacement of the lines coding unit includes at least one displacement of the lines scrambler, described displacement of the lines detector is connected with described displacement of the lines scrambler, described displacement of the lines detector, for to described displacement of the lines scrambler output alarm signal, is processed rear output alarm coded signal by described displacement of the lines scrambler by this alerting signal;
Described displacement of the lines video interlink unit comprises displacement of the lines cradle head controllor, by described displacement of the lines transmission unit, receive the presetting bit signalization from described displacement of the lines main control system, and this presetting bit signalization is sent to video The Cloud Terrace carries out presetting bit setting, described displacement of the lines cradle head controllor receives the alarm code signal that described displacement of the lines scrambler sends, and this alarm code signal is sent to described video The Cloud Terrace and described displacement of the lines main control system, this video The Cloud Terrace turns to alarm set point according to described alarm code signal by presetting bit setting and carries out monitoring camera, video camera is transported to DVR by the vision signal of alarm set point by described displacement of the lines transmission unit, by monitor video, invasion is checked,
Described displacement of the lines main control system, shows and alarm release for output alarm signal, zone of protection setting, the setting of video cradle head preset positions, alarm set point;
Described displacement of the lines transmission unit comprises video optical multiplexer, optical fiber, for the conveying of described vision signal, alarm code signal and presetting bit signalization;
Described displacement of the lines detector, comprise the steel hinge line of the use of deploying troops on garrison duty, the secured adjusted pull bar of steel hinge line, the other end of described secured adjusted pull bar connects a displacement acquisition pull bar by magnetic devices, and the other end of described displacement acquisition pull bar is electrically connected signal processing and analysis control circuit; On described secured adjusted pull bar, be set with by the spacing mechanical spring of stop means, described signal processing and analysis control circuit while being subjected to displacement for described displacement acquisition pull bar, is exported a warning electric signal after signal analysis and processing
Described video optical multiplexer comprises light end transmitter, light end receiver; Described light end transmitter, light end receiver join by described optical fiber, and the VIN video inputs BNC mouth of described light end transmitter is connected with described video camera.。
Described light end transmitter, light end receiver all have 2 485 interfaces, and one is reverse data interface, and a road is bi-directional data interface; Described light end receiver is connected with described displacement of the lines main control system by its reverse data interface, bi-directional data interface; Described light end transmitter joins by its reverse data interface, bi-directional data interface and described line position cradle head controllor.
Described displacement of the lines main control system is connected with described DVR by warning output terminal, video recorder 485 interfaces, after described displacement of the lines main control system receives described alarm code signal, output switch amount alerting signal is to described DVR, and the described presetting bit signalization that receives described DVR transmission, described DVR and described displacement of the lines transmission unit join, and receive the vision signal of described video The Cloud Terrace monitoring camera by described displacement of the lines transmission unit; The video output terminals of described DVR and described reception optical transmitter and receiver joins, and connects display.
Described displacement of the lines main control system comprises a plurality of alarm unit display circuits, and described in each, alarm unit display circuit comprises a plurality of alarm lamps, for realizing the alarm indication to a plurality of alarm set points of zone of protection.
The present invention also aims to provide a kind of displacement of the lines detector, comprise the steel hinge line of the use of deploying troops on garrison duty, the secured adjusted pull bar of steel hinge line, the other end of described secured adjusted pull bar connects a displacement acquisition pull bar by magnetic devices, and the other end of described displacement acquisition pull bar is electrically connected signal processing and analysis control circuit; On described secured adjusted pull bar, be set with by the spacing mechanical spring of stop means, described signal processing and analysis control circuit while being subjected to displacement for described displacement acquisition pull bar, is exported a warning electric signal after signal analysis and processing.
Described signal processing and analysis control circuit comprises:
The adjustable voltage circuit being connected with described displacement acquisition pull bar, with the operational amplification circuit that the output terminal of described adjustable voltage circuit is connected, the output terminal of described operational amplification circuit connects comparator circuit by a capacitor charge and discharge loop and a bleeder circuit; Described capacitor charge and discharge loop produces reference voltage value, described bleeder circuit reflection instantaneous voltage value; When described displacement acquisition pull bar generation straight-line displacement, described adjustable voltage circuit changes piezoelectricity size, through described operational amplification circuit Yi road, export to described capacitor charge and discharge loop, described bleeder circuit is exported on another road, this comparator circuit judges whether the difference of this instantaneous voltage value and reference voltage value surpasses alarm threshold, when surpassing output alarm electric signal of alarm threshold.
Described adjustable voltage circuit comprises a three terminal regulator, adjustable stabilized voltage supply, adjustable potentiometer RP and resistance R 1, described displacement acquisition pull bar connects described adjustable potentiometer RP, one end ground connection of described adjustable potentiometer RP, the other end divides two-way to connect described adjustable stabilized voltage supply, resistance R 1, and described resistance R 1 other end is connected on the voltage output end of described adjustable stabilized voltage supply;
Described operational amplification circuit comprises four operational amplifier U1, U2, U3, U4; Wherein, the in-phase input end of operational amplifier U1, U2, U3 is connected with the output terminal of described adjustable stabilized voltage supply respectively, the output terminal of operational amplifier U3 is by the in-phase input end of resistance R 2 concatenation operation amplifier U4, and the inverting input of operational amplifier U1, U2, U3, U4 respectively its output terminal connects;
Described capacitor charge and discharge loop comprises a charge and discharge capacitance C1, one end ground connection of described charge and discharge capacitance C1, and the other end is connected to the in-phase input end of operational amplifier U4;
Described bleeder circuit comprises resistance R 3, R4, R5, R6; Wherein, one end of resistance R 4 and operational amplifier U3 output terminal join, and one end of resistance R 3 and operational amplifier U4 output terminal join, resistance R 3, R5 serial connection, resistance R 4, R6 serial connection, resistance R 5, R6 other end ground connection;
Described comparator circuit comprises comparer U5, U6; The output terminal of the in-phase input end concatenation operation amplifier U4 of comparer U5, the inverting input of comparer U5 is connected on the connecting line of resistance R 4, R6; The output terminal of the in-phase input end concatenation operation amplifier U1 of comparer U6, the inverting input of comparer U6 is connected on the connecting line of resistance R 3, R5.
When the present invention uses, displacement of the lines detector is arranged on the existing netting fence of circumference, when there is invasion in the netting fence of circumference, linear movement pick-up sends alerting signal, and control the monitor video alarm set point that links simultaneously, by monitor video, invasion is checked, play effective boundary defence effect.
Accompanying drawing explanation
Figure 1 shows that a kind of schematic diagram that utilizes the perimeter protection warning system of displacement of the lines detecting intrusion that the embodiment of the present invention provides;
Figure 2 shows that the layout schematic diagram of the pilot lamp of the displacement of the lines main control system that the embodiment of the present invention provides;
Figure 3 shows that the structural representation of the displacement of the lines detector that the embodiment of the present invention provides;
Figure 4 shows that a kind of frame principle figure of signal processing and analysis control circuit of displacement of the lines detector;
Figure 5 shows that a kind of circuit theory diagrams of signal processing and analysis control circuit;
Figure 6 shows that the connection diagram of a plurality of displacement of the lines detectors while deploying troops on garrison duty.
Embodiment
Below, in conjunction with example, substantive distinguishing features of the present invention and advantage are further described, but the present invention is not limited to listed embodiment.
Refer to Fig. 1-2, a kind of perimeter protection warning system of utilizing displacement of the lines detecting intrusion, comprises displacement of the lines probe unit, displacement of the lines coding unit, displacement of the lines video interlink unit 30, displacement of the lines transmission unit 40, displacement of the lines main control system 50;
Described displacement of the lines probe unit includes at least one displacement of the lines detector 10, described displacement of the lines coding unit includes at least one displacement of the lines scrambler 20, wherein, a corresponding displacement of the lines scrambler 20 of displacement of the lines detector 10, described displacement of the lines detector 10 is connected with described displacement of the lines scrambler 20, described displacement of the lines detector 10 is for when protection point has invader, to described displacement of the lines scrambler 20 output alarm signals, output alarm coded signal after by described displacement of the lines scrambler 20, this alerting signal being encoded;
Described displacement of the lines video interlink unit 30 includes displacement of the lines cradle head controllor, by described displacement of the lines transmission unit, receive the presetting bit signalization from described displacement of the lines main control system, and this presetting bit signalization is sent to video The Cloud Terrace carries out presetting bit setting, receive the described alarm code signal that displacement of the lines scrambler sends, by displacement of the lines transmission unit 40, described alarm code signal is sent to displacement of the lines main control system 50 and video The Cloud Terrace 60, this is turned to alarm set point according to described alarm code signal by presetting bit setting by video The Cloud Terrace 60 and carries out monitoring camera, video camera is transported to DVR 80 by the vision signal of alarm set point by described displacement of the lines transmission unit, by monitor video, invasion is checked,
Described displacement of the lines main control system 50, be arranged on Surveillance center, be used for exporting control signal, zone of protection setting, (be address code setting, as DIP device 51 is set by a plurality of address codes, realize), video cradle head preset positions setting (realizing as switch 54 is set by presetting bit), alarm set point demonstration and alarm release (by a plurality of alarm release switches 57); Its working power provides AC220V by Surveillance center;
Described displacement of the lines transmission unit 40 comprises video optical multiplexer, optical fiber 43, for the conveying of described vision signal, alarm code signal and presetting bit signalization.
During use, displacement of the lines detector 10 of the present invention produces alerting signal, through displacement of the lines scrambler 20 codings, form alarm code signal, and this alarm code signal is sent to displacement of the lines cradle head controllor, through displacement of the lines cradle head controllor, send to video The Cloud Terrace 60 and displacement of the lines main control system 50, video The Cloud Terrace 60 is according to described alarm code signal, by presetting bit setting, turn to alarm set point and carry out monitoring camera by video camera 70, simultaneous camera 70 is transported to DVR 80 by the vision signal of alarm set point by described displacement of the lines transmission unit, thereby realize by monitor video, invasion is checked.After receiving described alarm code signal, described displacement of the lines main control system 50 carries out alarm set point demonstration, and output switch amount alerting signal.
It should be noted that, the working power of described displacement of the lines scrambler 20 provides AC220V by panel box, be used for receiving alert signal, by alerting signal coding output (this is encoded to address code signal), determine alarm set point position, comprise alerting signal receiving circuit, coding circuit, driving circuit, waterproof case; During installation, this displacement of the lines scrambler waterproof case can be arranged in the vertical rod of netting fence, be connected with described displacement of the lines detector 10, the alerting signal of described displacement of the lines detector 10 outputs, be transferred to described displacement of the lines scrambler 20, described displacement of the lines scrambler 20 is provided with the alarm set point pilot lamp of binary code coding.
It should be noted that, described line position cradle head controllor can be arranged in the panel box of video bar, be connected with described displacement of the lines scrambler 20, include alarm code signal receiving circuit, alarm code signal sends 485 interface circuits, receive the video optical multiplexer of alarm code signal by line position delivery unit and output to Surveillance center; Described line position cradle head controllor also includes video cradle head preset positions control circuit, video cradle head preset positions memory circuit, video cradle head preset positions arranges 485 interface circuits, described video cradle head preset positions control circuit is used for controlling video The Cloud Terrace and arrives alarm set point by presetting bit, described video cradle head preset positions memory circuit, for the preset signalization of video The Cloud Terrace of storing received, is controlled video The Cloud Terrace 60 by the presetting bit of storage when anti-raw warning.
The preset setting of described video The Cloud Terrace can be by DVR, or video matrix is transferred to displacement of the lines main control system 50 by 485 interfaces, displacement of the lines main control system 50 is sent to this preset signalization the displacement of the lines cradle head controllor of front end again, and will in the storer of this online position of presetting bit signalization storage cradle head controllor, use.
It should be noted that, in the present invention, described video optical multiplexer comprises light end transmitter 42, light end receiver 41; Described light end transmitter 41, light end receiver 42 join by described optical fiber 43, and the VIN video inputs BNC mouth of described light end transmitter is connected with described video camera 70, receiving video signals.
Described light end transmitter 42, light end receiver 41 all have 2 485 interfaces, and one is reverse data interface, and a road is bi-directional data interface.
Described light end receiver 41 is connected with described displacement of the lines main control system 50 by its reverse data interface, bi-directional data interface; Described light end transmitter 42 joins by the line position cradle head controllor of its reverse data interface, bi-directional data interface and described displacement of the lines video interlink unit 30.
In specific implementation, described light end receiver 41 is by its data input pin 412, the optical transmitter and receiver connector of the signal transmitting and receiving end 52 of data output end 411 connecting line displacement main control systems 50, the The Cloud Terrace of the line position cradle head controllor of the data input pin 422 connecting line displacement video interlink unit 30 of described light end transmitter 42 and optical transmitter and receiver link 302 (for output encoder alerting signal and video cradle head control signal), the optical transmitter and receiver data receiver 301 of the line position cradle head controllor of described displacement of the lines video interlink unit 30 connects the data output end 421 of described light end transmitter 42, the data output end 302 of the line position cradle head controllor of connecting line displacement video interlink unit 30 also joins with the data input pin of described video The Cloud Terrace 60, be used for to described video The Cloud Terrace 60 output video cradle head control signals.
The coding alerting signal data output end of the warning input end 303 connecting line displacement encoders 20 of described line position cradle head controllor, the power ground end of the control end of described displacement of the lines scrambler 20, power connector end and displacement of the lines detector 10 joins, and to described displacement of the lines detector 10, provides 12 volts of operating voltage.
The vision signal of described light end receiver 41, light end transmitter 42 connects routinely, can receive and send alarm code signal by this bi-directional data interface, by reverse data interface receiver, video cradle head preset positions signalization, be connected with video The Cloud Terrace and send presetting bit signalization and warning video interlink control signal, working power provides AC220V by panel box.
Described light end transmitter is arranged in front end video bar panel box, and described light end receiver is arranged on described Surveillance center.
By described light end transmitter, light end receiver, realize the transmission of the data between displacement of the lines main control system, line position cradle head controllor and video The Cloud Terrace, comprised vision signal, control signal and alarm code signal.
It should be noted that, described displacement of the lines main control system 50 is connected with described DVR 80 by 485 mouthfuls of warning output terminals 53, video recorder, after described displacement of the lines main control system 50 receives described alarm code signal, output switch amount alerting signal is to described DVR 80, and the described presetting bit signalization that receives described DVR 80 transmissions, described DVR 80 is joined with described displacement of the lines transmission unit, receives the vision signal of described video The Cloud Terrace monitoring camera by described displacement of the lines transmission unit.
After the reception of the vision signal that described DVR 80 is shot with video-corder for described The Cloud Terrace video camera, by display 90, show, carry out the setting of video cradle head preset positions, and the reception of the switching value alerting signal of described displacement of the lines main control system 50 outputs.
Wherein, described DVR 80 is joined with the video output terminals of described reception optical transmitter and receiver 41, and connects display 90, can realize after the vision signal input that The Cloud Terrace video camera is shot with video-corder, and the display 90 by Surveillance center shows, realizes and checks monitoring.
As an embodiment, described displacement of the lines main control system 50 includes region division circuit, data transmit-receive circuit, data transmit-receive control circuit, alarm set point display circuit, alarm set point reset circuit; Described alarm set point display circuit includes a plurality of alarm unit display circuits, and described in each, alarm unit display circuit comprises a plurality of alarm lamps 56, for realizing the alarm indication of more than 55 alarm set point in a corresponding viewing area of protection of a corresponding zone of protection.
Further, described alarm unit display circuit is 8, and described in each, alarm unit display circuit comprises that alarm lamp is 8, like this, can realize 8 regions, and 64 are protected point and prevention and control.
Further, be also provided with 8 presetting bits pilot lamp 58 and power switch 59 are set on described displacement of the lines main control system 50, described presetting bit arranges pilot lamp 58, for carrying out in displacement of the lines video interlink unit 30, carries out lamplight pointing when cradle head preset positions arranges.
In specific implementation, the address code in each region is realized by DIP device coding, eight toggle switchs codings that the coding of each protection point is contained in the displacement of the lines scrambler of displacement of the lines coding unit are realized, when front end occurs to report to the police, the address code of alarm set point is sent to displacement of the lines main control system 50, after receiving, displacement of the lines main control system 50 decodes, alarm lamp by each region shows, when displacement of the lines main control system 50 receives after alerting signal, alarm set point 56 pilot lamp Chang Liang, need remove by alarm release key; An exportable alerting signal (switching value signal) and other equipment linkages after there is warning.
Certainly, this alarm unit display circuit also can be more, and the set alarm lamp of each alarm unit display circuit can be also a plurality of, or according to being arranged to different quantity.
It should be noted that, a described displacement of the lines detector 10 and a described displacement of the lines scrambler 20 can be encoded to an address protection point is surveyed, also can be that a plurality of described displacement of the lines detectors and a plurality of described displacement of the lines scrambler are encoded to an address jointly, a protection point is surveyed.
In the embodiment of the present invention, described displacement of the lines detector can adopt displacement of the lines detector as shown in Figure 3, as shown in Figure 3, described displacement of the lines detector comprises waterproof case 100, in described waterproof case 100, be provided with signal processing and analysis control circuit 101, the steel strand wires 106 of the use of deploying troops on garrison duty, steel strand wires displacement acquisition pull bar 102, the steel strand wires secured adjusted pull bar 104 that is connected by the high magnetic devices of intensity with described steel hinge line displacement acquisition pull bar 102 and can disconnects, mechanical spring 103, this mechanical spring 103 is by limiting plate 108, 109 and locating part 110 spacing, two limiting plates 108, 109 in being fixedly mounted on described housing 100, and be enclosed within on described steel strand wires secured adjusted pull bar 104, described steel strand wires secured adjusted pull bar 104, except for fixing steel hinge line, also for the fixing and described mechanical spring 103 of compression, also include steel strand wires and draw angle sheave 107, after wire hole for the steel strand wires at the described steel hinge line displacement acquisition pull bar 102 of connection on housing 100 sides is pulled out, change the direction of steel hinge line, play the guiding role, prevent from being wound around, described signal processing and analysis control circuit 101 connects displacement encoder 20 by power supply signal cable link 105, can provide DC12V working power by displacement of the lines scrambler, described signal processing and analysis control circuit, when described displacement acquisition pull bar generation straight-line displacement, after signal analysis and processing, export a warning electric signal to described displacement of the lines scrambler.
Shown in Figure 4, described signal processing and analysis control circuit can adopt circuit structure as shown in Figure 4, comprise the adjustable voltage circuit being connected with described displacement acquisition pull bar 102, with the operational amplification circuit that described adjustable voltage circuit is connected, the output terminal of described operational amplification circuit connects comparator circuit by a capacitor charge and discharge loop and a bleeder circuit, described capacitor charge and discharge loop produces reference voltage value, described bleeder circuit reflection instantaneous voltage value, during described displacement acquisition pull bar generation straight-line displacement, described adjustable voltage circuit changes piezoelectricity size, through described operational amplification circuit Yi road, export to described capacitor charge and discharge loop, described bleeder circuit is exported on another road, now the magnitude of voltage of bleeder circuit changes with the variation of adjustable voltage circuit output piezoelectricity, and the reference voltage value that capacitor charge and discharge loop produces does not change at once with the variation of adjustable voltage circuit output piezoelectricity, comparator circuit judges whether bleeder circuit magnitude of voltage and reference voltage value difference surpass alarm threshold, when surpassing output alarm electric signal of alarm threshold.
Shown in Figure 5, described adjustable voltage circuit 1010 comprises a three terminal regulator 78L09, adjustable stabilized voltage supply LM317, adjustable potentiometer RP and resistance R 1, described displacement acquisition pull bar connects described adjustable potentiometer RP, one end ground connection of described adjustable potentiometer RP, the other end divides two-way to connect described adjustable stabilized voltage supply, resistance R 1, and described resistance R 1 other end is connected on the voltage output end of described adjustable stabilized voltage supply;
Described operational amplification circuit 1011 comprises four operational amplifier U1, U2, U3, U4 (LM224); Wherein, the in-phase input end of operational amplifier U1, U2, U3 is connected with the output terminal of described adjustable stabilized voltage supply respectively, the output terminal of operational amplifier U3 is by the in-phase input end of resistance R 2 concatenation operation amplifier U4, and the inverting input of operational amplifier U1, U2, U3, U4 respectively its output terminal connects;
Described capacitor charge and discharge loop 1012 comprises a charge and discharge capacitance C1, one end ground connection of described charge and discharge capacitance C1, and the other end is connected to the in-phase input end of operational amplifier U4;
Described bleeder circuit 1013 comprises resistance R 3, R4, R5, R6; Wherein, one end of resistance R 4 and operational amplifier U3 output terminal join, and one end of resistance R 3 and operational amplifier U4 output terminal join, resistance R 3, R5 serial connection, resistance R 4, R6 serial connection, resistance R 5, R6 other end ground connection;
Described comparator circuit 1104 comprises comparer U5, U6 (LM2903); The output terminal of the in-phase input end concatenation operation amplifier U4 of comparer U5, the inverting input of comparer U5 is connected on the connecting line of resistance R 4, R6; The output terminal of the in-phase input end concatenation operation amplifier U1 of comparer U6, the inverting input of comparer U6 is connected on the connecting line of resistance R 3, R5.
Shown in Figure 6, during use, the waterproof case 100 of described displacement of the lines detector 10 is for being arranged on the vertical rod of netting fence, be arranged on steel hinge line 106 on steel strand wires displacement acquisition pull bar 102 after wire hole is drawn, other end is arranged on the steel strand wires secured adjusted pull bar 104 of next displacement of the lines detector 10, and steel strand wires 106 are strained by steel strand wires clamp nut, steel strand wires displacement acquisition pull bar 102 is pulled out and be not less than 5mm.
When this displacement of the lines detector 10 uses, be arranged on the existing netting fence of circumference, under the state of deploying troops on garrison duty, if someone pulls steel strand wires 106, or when destroying netting fence and cutting off steel strand wires 106, the position of steel strand wires displacement acquisition pull bar 102 can produce position with external force and move, thereby change adjustable voltage circuit output voltage size, through operational amplification circuit one tunnel, export to capacitor charge and discharge loop, described bleeder circuit is exported on another road, finally two-way voltage is analyzed relatively, when surpassing alarm threshold, made detector output alarm signal, realize and reporting to the police.
It is that electromechanics is combined with integration product that the present invention utilizes the perimeter protection warning system of linear displacement detecting intrusion, by the physical quantity detecting, change and be converted to electric quantity change, carry out the detection of intrusion behavior, because product adopts the electromechanics structure that integrally combines, therefore guaranteed stability and the reliability of product.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a perimeter protection warning system of utilizing displacement of the lines detecting intrusion, is characterized in that, comprises displacement of the lines probe unit, displacement of the lines coding unit, displacement of the lines video interlink unit, displacement of the lines transmission unit, displacement of the lines main control system;
Described displacement of the lines probe unit includes at least one displacement of the lines detector, described displacement of the lines coding unit includes at least one displacement of the lines scrambler, described displacement of the lines detector is connected with described displacement of the lines scrambler, described displacement of the lines detector, for to described displacement of the lines scrambler output alarm signal, is processed backward displacement of the lines video interlink unit output alarm coded signal by described displacement of the lines scrambler by this alerting signal;
Described displacement of the lines video interlink unit comprises displacement of the lines cradle head controllor, by described displacement of the lines transmission unit, receive the presetting bit signalization from described displacement of the lines main control system, and this presetting bit signalization is sent to video The Cloud Terrace carries out presetting bit setting, described displacement of the lines cradle head controllor receives the alarm code signal that described displacement of the lines scrambler sends, and this alarm code signal is sent to described video The Cloud Terrace and sends to described displacement of the lines main control system by displacement of the lines transmission unit, this video The Cloud Terrace turns to alarm set point according to described alarm code signal by presetting bit setting and carries out monitoring camera, video camera is transported to DVR by the vision signal of alarm set point by described displacement of the lines transmission unit, by monitor video, invasion is checked,
Described displacement of the lines main control system, shows and alarm release for output alarm signal, zone of protection setting, the setting of video cradle head preset positions, alarm set point;
Described displacement of the lines transmission unit comprises video optical multiplexer, optical fiber, for the conveying of described vision signal, alarm code signal and presetting bit signalization;
Described displacement of the lines detector comprises the steel hinge line of the use of deploying troops on garrison duty, the secured adjusted pull bar of steel hinge line, the other end of described secured adjusted pull bar connects a displacement acquisition pull bar by magnetic devices, and the other end of described displacement acquisition pull bar is electrically connected signal processing and analysis control circuit; On described secured adjusted pull bar, be set with by the spacing mechanical spring of stop means, described signal processing and analysis control circuit while being subjected to displacement for described displacement acquisition pull bar, is exported a warning electric signal after signal analysis and processing.
2. the perimeter protection warning system of utilizing according to claim 1 displacement of the lines detecting intrusion, is characterized in that, described video optical multiplexer comprises light end transmitter, light end receiver; Described light end transmitter, light end receiver join by described optical fiber, and the VIN video inputs BNC mouth of described light end transmitter is connected with described video camera.
3. the perimeter protection warning system of utilizing according to claim 2 displacement of the lines detecting intrusion, is characterized in that, described light end transmitter, light end receiver all have 2 485 interfaces, and one is reverse data interface, and a road is bi-directional data interface; Described light end receiver is connected with described displacement of the lines main control system by its reverse data interface, bi-directional data interface; Described light end transmitter joins by its reverse data interface, bi-directional data interface and described line position cradle head controllor.
4. utilize according to claim 3 the perimeter protection warning system of displacement of the lines detecting intrusion, it is characterized in that, described displacement of the lines main control system is by warning output terminal, video recorder 485 interfaces are connected with described DVR, after described displacement of the lines main control system receives described alarm code signal, output switch amount alerting signal is to described DVR, and the described presetting bit signalization that receives described DVR transmission, described DVR and described displacement of the lines transmission unit join, by described displacement of the lines transmission unit, receive the vision signal of described video The Cloud Terrace monitoring camera, the video output terminals of described DVR and described reception optical transmitter and receiver joins, and connects display.
5. according to a claim 4 described perimeter protection warning system of utilizing displacement of the lines detecting intrusion, it is characterized in that, described displacement of the lines main control system comprises a plurality of alarm unit display circuits, described in each, alarm unit display circuit comprises a plurality of alarm lamps, for realizing the alarm indication to a plurality of alarm set points of zone of protection.
6. according to the perimeter protection warning system of utilizing displacement of the lines detecting intrusion described in claim 1-5 any one, it is characterized in that, described signal processing and analysis control circuit comprises:
The adjustable voltage circuit being connected with described displacement acquisition pull bar, with the operational amplification circuit that the output terminal of described adjustable voltage circuit is connected, the output terminal of described operational amplification circuit connects comparator circuit by a capacitor charge and discharge loop and a bleeder circuit; Described capacitor charge and discharge loop produces reference voltage value, described bleeder circuit reflection instantaneous voltage value; When described displacement acquisition pull bar generation straight-line displacement, described adjustable voltage circuit changes piezoelectricity size, through described operational amplification circuit Yi road, export to described capacitor charge and discharge loop, described bleeder circuit is exported on another road, this comparator circuit judges whether the difference of this instantaneous voltage value and reference voltage value surpasses alarm threshold, when surpassing output alarm electric signal of alarm threshold.
7. utilize according to claim 6 the perimeter protection warning system of linear displacement detecting intrusion, it is characterized in that, described adjustable voltage circuit comprises a three terminal regulator, adjustable stabilized voltage supply, adjustable potentiometer RP and resistance R 1, described displacement acquisition pull bar connects described adjustable potentiometer RP, one end ground connection of described adjustable potentiometer RP, the other end divides two-way to connect described adjustable stabilized voltage supply, resistance R 1, and described resistance R 1 other end is connected on the voltage output end of described adjustable stabilized voltage supply;
Described operational amplification circuit comprises four operational amplifier U1, U2, U3, U4; Wherein, the in-phase input end of operational amplifier U1, U2, U3 is connected with the output terminal of described adjustable stabilized voltage supply respectively, the output terminal of operational amplifier U3 is by the in-phase input end of resistance R 2 concatenation operation amplifier U4, and the inverting input of operational amplifier U1, U2, U3, U4 respectively its output terminal connects;
Described capacitor charge and discharge loop comprises a charge and discharge capacitance C1, one end ground connection of described charge and discharge capacitance C1, and the other end is connected to the in-phase input end of operational amplifier U4;
Described bleeder circuit comprises resistance R 3, R4, R5, R6; Wherein, one end of resistance R 4 and operational amplifier U3 output terminal join, and one end of resistance R 3 and operational amplifier U4 output terminal join, resistance R 3, R5 serial connection, resistance R 4, R6 serial connection, resistance R 5, R6 other end ground connection;
Described comparator circuit comprises comparer U5, U6; The output terminal of the in-phase input end concatenation operation amplifier U4 of comparer U5, the inverting input of comparer U5 is connected on the connecting line of resistance R 4, R6; The output terminal of the in-phase input end concatenation operation amplifier U1 of comparer U6, the inverting input of comparer U6 is connected on the connecting line of resistance R 3, R5.
8. a displacement of the lines detector, it is characterized in that, comprise the steel hinge line of the use of deploying troops on garrison duty, the secured adjusted pull bar of steel hinge line, the other end of described secured adjusted pull bar connects a displacement acquisition pull bar by magnetic devices, and the other end of described displacement acquisition pull bar is electrically connected signal processing and analysis control circuit; On described secured adjusted pull bar, be set with by the spacing mechanical spring of stop means, described signal processing and analysis control circuit while being subjected to displacement for described displacement acquisition pull bar, is exported a warning electric signal after signal analysis and processing.
9. displacement of the lines detector according to claim 8, is characterized in that, described signal processing and analysis control circuit comprises:
The adjustable voltage circuit being connected with described displacement acquisition pull bar, with the operational amplification circuit that the output terminal of described adjustable voltage circuit is connected, the output terminal of described operational amplification circuit connects comparator circuit by a capacitor charge and discharge loop and a bleeder circuit; Described capacitor charge and discharge loop produces reference voltage value, described bleeder circuit reflection instantaneous voltage value; When described displacement acquisition pull bar generation straight-line displacement, described adjustable voltage circuit changes piezoelectricity size, through described operational amplification circuit Yi road, export to described capacitor charge and discharge loop, described bleeder circuit is exported on another road, this comparator circuit judges whether the difference of this instantaneous voltage value and reference voltage value surpasses alarm threshold, when surpassing output alarm electric signal of alarm threshold.
10. displacement of the lines detector according to claim 9, it is characterized in that, described adjustable voltage circuit comprises a three terminal regulator, adjustable stabilized voltage supply, adjustable potentiometer RP and resistance R 1, described displacement acquisition pull bar connects described adjustable potentiometer RP, one end ground connection of described adjustable potentiometer RP, the other end divides two-way to connect described adjustable stabilized voltage supply, resistance R 1, and described resistance R 1 other end is connected on the voltage output end of described adjustable stabilized voltage supply;
Described operational amplification circuit comprises four operational amplifier U1, U2, U3, U4; Wherein, the in-phase input end of operational amplifier U1, U2, U3 is connected with the output terminal of described adjustable stabilized voltage supply respectively, the output terminal of operational amplifier U3 is by the in-phase input end of resistance R 2 concatenation operation amplifier U4, and the inverting input of operational amplifier U1, U2, U3, U4 respectively its output terminal connects;
Described capacitor charge and discharge loop comprises a charge and discharge capacitance C1, one end ground connection of described charge and discharge capacitance C1, and the other end is connected to the in-phase input end of operational amplifier U4;
Described bleeder circuit comprises resistance R 3, R4, R5, R6; Wherein, one end of resistance R 4 and operational amplifier U3 output terminal join, and one end of resistance R 3 and operational amplifier U4 output terminal join, resistance R 3, R5 serial connection, resistance R 4, R6 serial connection, resistance R 5, R6 other end ground connection;
Described comparator circuit comprises comparer U5, U6; The output terminal of the in-phase input end concatenation operation amplifier U4 of comparer U5, the inverting input of comparer U5 is connected on the connecting line of resistance R 4, R6; The output terminal of the in-phase input end concatenation operation amplifier U1 of comparer U6, the inverting input of comparer U6 is connected on the connecting line of resistance R 3, R5.
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| CN201410499294.7A CN104200592B (en) | 2014-09-25 | 2014-09-25 | Perimeter protection alarm system utilizing linear displacement to detect invasion and linear displacement detector |
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