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CN103035091B - Intrusion detector and detection method for tension electronic fences - Google Patents

Intrusion detector and detection method for tension electronic fences Download PDF

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Publication number
CN103035091B
CN103035091B CN201110296214.4A CN201110296214A CN103035091B CN 103035091 B CN103035091 B CN 103035091B CN 201110296214 A CN201110296214 A CN 201110296214A CN 103035091 B CN103035091 B CN 103035091B
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module
tension
voltage
tension force
resistance
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CN103035091A (en
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王雷
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Shanghai Gato Information Technology Co Ltd
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Shanghai Gato Information Technology Co Ltd
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Abstract

The invention discloses an intrusion detector and a detection method for tension electronic fences. The detector comprises a tension detection module, a signal conversion module, a host control module, a power module and an alarming module. The tension detection module is connected with a tension electronic fence and used for detecting tension changes of the tension electronic fence to obtain tension value feathers and generate tension voltage signals; the signal conversion module is in communication connection with the tension detection module for amplifying and outputting the tension voltage signals output by the tension detection module; the host control module is in communication connection with the signal conversion module for analyzing and determining the amplified tension voltage signals and determining tension change positions and reasons of the tension electronic fence to emit alarming signals; the power module is connected with the host control module for supplying power for the host control module; and the alarming module is connected with the host control module for receiving the alarming signals to give an alarm. The intrusion detector and the detection method for tension electronic fences are capable of detecting intrusions of various types on the tension electronic fence and performing locating and alarming accurately and not prone to be affected by environments.

Description

Tension electronic fence intrusion detector and detection method
Technical field
The invention belongs to technical field of electronic communication, relate to a kind of detector, particularly relate to a kind of tension electronic fence intrusion detector and detection method.
Background technology
In recent years; along with market application foreground constantly expands; various security precautions technology measure is arisen at the historic moment; as in ordinarily resident residential quarter, villa house district, enterprises and institutions, factory, warehouse, transformer station, water factory, power plant, school; to such an extent as to the detention house of justice system, prison, and the place such as airport, military base, government organs, major historical and cultural sites under state protection all needs perimeter security to take precautions against and periphery intrusion preventing warning facility.Along with the enhancing of safety precaution demand, the security system of various novel Detection Techniques develops rapidly, and boundary defence product is also more and more abundanter.
For periphery intrusion preventing alarm system, infrared detection technique and the two mirror technology of infrared microwave is generally adopted now to detect, major product has infrared emission intrusion detector and infrared emission grating, but these infrared acquisition product requirements to environment are higher, when environmental change, as branch shield, strong illumination, have animal to come in and go out or strong wind and heavy rain when, easily produce wrong report information, and rate of false alarm is very high.
Now conventional boundary defence product is high-voltage pulse tension electronic fence, it adopts high voltage, low-energy pulse, although can not cause direct injury to human body, if accidentally touch, then may causing slips because there being strong electrical sensation to drop etc. and indirectly injures; Sometimes also can produce electric spark, should not use under the environment having inflammable gas, also need to keep enough distances with power circuit.
Summary of the invention
Technical matters to be solved by this invention is: provide a kind of tension electronic fence intrusion detector, and this detector can detect the alerting signal of the number of different types on tension electronic fence, and accurate locating alarming;
In addition, the present invention also provides a kind of tension electronic fence intrusion detection method, and the method can prepare the position and the type that detect invasion tension electronic fence, and sends warning.
For solving the problems of the technologies described above, the present invention adopts following technical scheme.
A kind of tension electronic fence intrusion detector, comprising: tension force detecting module, signal conversion module, host computer control module, power module, alarm module; Described tension force detecting module is connected with tension electronic fence, in order to detect the tension variation of tension electronic fence, draws tension value feature, generates tension force voltage signal; Described signal conversion module communicates with described tension force detecting module and is connected, and amplifies output in order to the tension force voltage signal exported by tension force detecting module; Described host computer control module communicates with described signal conversion module and is connected, judge in order to carry out analysis to the tension force voltage signal after amplification, determine size and the situation of change of the tension force of tension electronic fence, simultaneously, compare with the alarming threshold value pre-set, judge whether to report to the police; Described power module is connected with described host computer control module, with thinking that host computer control module is powered; Described alarm module is connected with described host computer control module, in order to send warning.
As a preferred embodiment of the present invention, described tension electronic fence intrusion detector also comprises: communication module, display module; Described communication module is connected with described host computer control module, in order to realize the real-time communication of tension electronic fence intrusion detector and external unit; Described display module is connected with described host computer control module, in order to show current Defence areas alarm state, invasion position and power work state in real time.
As another kind of preferred version of the present invention, described signal conversion module comprises a discharge circuit, and described discharge circuit comprises operational amplifier, resistance R3, resistance R4, resistance R7, resistance R9, electric capacity C11, electric capacity C13; The reverse input end of described operational amplifier is connected with the output terminal VA1 of tension force detecting module by resistance R3, and the input end in the same way of operational amplifier is connected with the output terminal VA2 of tension force detecting module by resistance R4; The output terminal of operational amplifier meets total output terminal V0 by resistance R9, and the other end of described resistance R9 is also by electric capacity C13 ground connection; Be connected with a feedback circuit between operational amplifier output terminal and reverse input end, described feedback circuit is the circuit of electric capacity C11 and resistance R7 parallel connection.
As another preferred version of the present invention, described host computer control module comprises an AD conversion module; Described AD conversion module is connected with described discharge circuit, in order to carry out AD conversion to the tension force voltage signal after amplification, carries out analysis then the digital data transmission obtained after conversion to described host computer control module and judges.
As another preferred version of the present invention, described power module comprises: 220V-20V Industrial Frequency Transformer, rectifier filer, level switch module, the first Voltage stabilizing module, the second Voltage stabilizing module, battery; 220V alternating current in order to access 220V alternating current, and is carried out power frequency transform in 220V-20V voltage range by described 220V-20V Industrial Frequency Transformer; Described rectifier filer is connected with described 220V-20V Industrial Frequency Transformer, carries out rectifying and wave-filtering process in order to the voltage exported 220V-20V Industrial Frequency Transformer; Described level switch module is connected with described rectifier filer, in order to the voltage modulated after rectifying and wave-filtering is become DC voltage; Described first Voltage stabilizing module is connected with described level switch module; Described second Voltage stabilizing module is connected with described first Voltage stabilizing module; Described first Voltage stabilizing module and the second Voltage stabilizing module are in order to change into the operating voltage of host computer control module by described DC voltage; The output terminal of described second Voltage stabilizing module is connected with described host computer control module; Described battery is connected with described first Voltage stabilizing module, in order to adopt powered battery when described tension electronic fence intrusion detector power-off.
A kind of tension electronic fence intrusion detection method, comprises the following steps:
Step one, the tension variation of detection tension electronic fence, draws tension value feature, generates tension force voltage signal;
Step 2, the tension force voltage signal exported by tension force detecting module amplifies;
Step 3, converts digital signal to and carries out analysis judgement, determine tension variation position and the reason of tension electronic fence, send intrusion alarm by the tension force voltage signal after amplification.
As a preferred embodiment of the present invention, described detection method also comprises:
Energizing step: 220V alternating current is carried out power frequency transform to 220V-20V voltage, rectifying and wave-filtering process is carried out to 220V-20V voltage, the voltage modulated after rectifying and wave-filtering is become DC voltage, then DC voltage is changed into the operating voltage of needs;
Stand-by power supply step: the DC voltage provided by battery changes into the operating voltage of needs;
Step display: show current Defence areas alarm state in real time, invade the step display of position and power supply state.
Beneficial effect of the present invention is:
1) functions such as stop, deterrence, warning are organically integrated, the mechanical part exposed is not charged, can not cause direct or indirect injury to human body;
2) the invasion situation of the number of different types on tension electronic fence can be detected, and accurate locating alarming;
3) can guarantee that the change of environment can not cause the change of tension force alarm threshold value, environmental suitability by force, not by the impact of the environmental factors such as greening, trees and toy, by the impact of thermal climate change, is not subject to the restriction of landform height and tortuous yet.
Description of the invention and application are illustrative, not want by scope restriction of the present invention in the above-described embodiments.Distortion and the change of embodiment disclosed are here possible, are known for the replacement of embodiment those those of ordinary skill in the art and the various parts of equivalence.Those skilled in the art are noted that when not departing from spirit of the present invention or essential characteristic, and the present invention with other forms, structure, layout, ratio, and can realize with other elements, material and parts.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of tension electronic fence intrusion detector of the present invention;
Fig. 2 is the structured flowchart of signal conversion module of the present invention;
Fig. 3 is the circuit theory diagrams of the discharge circuit in signal conversion module of the present invention;
Fig. 4 is the structured flowchart of power module of the present invention;
Fig. 5 is the schematic flow sheet of tension electronic fence intrusion detection method of the present invention.
Primary clustering symbol description:
1, tension force detecting module; 2, signal conversion module;
3, host computer control module; 4, power module;
5, communication module; 6, alarm module;
7, display module; 41,220V-20V Industrial Frequency Transformer;
42, rectifier filer; 43, level switch module;
44,12V/7AH battery; 45, the first Voltage stabilizing module;
46, the second Voltage stabilizing module; 31, AD conversion module;
21, discharge circuit.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Embodiment one
The present embodiment provides a kind of tension electronic fence intrusion detector, as shown in Figure 1, comprising: tension force detecting module 1, signal conversion module 2, host computer control module 3, power module 4, communication module 5, alarm module 6, display module 7; Wherein host computer control module 3 communicates be connected with signal conversion module 2, power module 4, communication module 5, alarm module 6, display module 7 respectively, and described tension force detecting module 1 is connected with signal conversion module 2.
Respectively modules is described in detail below:
[tension force detecting module 1]
Described tension force detecting module 1 is directly connected by pressure transducer with tension electronic fence, in order to detect the tension variation of tension electronic fence, draws tension value feature, generates tension force voltage signal.Described tension force detecting module module adopts 5V Power supply, and detect within the scope of 120KG, sensitivity can reach 2Mv/1V, has the feature of temperature compensation, zero point stability.
Described tension force detecting module is pressure transducer.Described pressure transducer converts force value to electric signal by resistance change.
[signal conversion module 2]
Described signal conversion module 2 communicates with described tension force detecting module 1 and is connected, and is sent to described host computer control module 3 in order to the tension force voltage signal amplification exported by tension force detecting module 1.
Described signal conversion module comprises a discharge circuit 21, and as shown in Figures 2 and 3, described discharge circuit comprises operational amplifier, resistance R3, R4, R7, R9, electric capacity C11, C13; Wherein the reverse input end of operational amplifier is connected with the output terminal VA1 of tension force detecting module 1 by resistance R3, and the input end in the same way of operational amplifier is connected with the output terminal VA2 of tension force detecting module 1 by resistance R4; The output terminal of operational amplifier meets total output terminal V0 by resistance R9, and the other end of described resistance R9 is also by electric capacity C13 ground connection; Be connected with a feedback circuit between the reverse input end of operational amplifier and output terminal, described feedback circuit is the circuit of electric capacity C11 and resistance R7 parallel connection.
The tension force voltage signal that described pressure transducer output terminal VA1, VA2 export becomes voltage VO=VA2+R7* (VA2-VA1)/R3 after operational amplifier (IC1/0PS07S) amplifies.Time static, the voltage of output terminal VA1 and VA2 is equal, is all about 2.5V.The benefit of such design is: the voltage exported when pressure transducer senses pulling force or pressure, in the working range of operational amplifier, is unlikely to operational amplifier was lost efficacy.
[host computer control module 3]
Described host computer control module 3 for core, comprises AD conversion module 31 with PIC16F877 controller; Described AD conversion module 31 is connected 21 with described discharge circuit, in order to carry out AD conversion to the tension force voltage signal after amplification.The AD conversion module 31 that the tension force voltage signal of the amplification that described operational amplifier exports is input in host computer control module 3 carries out AD conversion; Host computer control module 3 is carried out analysis to the digital signal obtained by AD conversion and is judged, determines the change of the Tensity size of tension electronic fence, and compares with the alarming threshold value pre-set, judge whether to send warning; Thus management controls alarm module 6 and display module 7.
[power module 4]
As shown in Figure 4, described power module 4 comprises 220V-20V Industrial Frequency Transformer 41, rectifier filer 42, level switch module 43,12V/7AH battery 44, first Voltage stabilizing module 45 (7809), second Voltage stabilizing module 46 (7805); 220V alternating current in order to access 220V alternating current, and is carried out power frequency transform in 220V-20V voltage range by described 220V-20V Industrial Frequency Transformer 41; Rectifier filer 42 is connected with described 220V-20V Industrial Frequency Transformer 41, carries out rectifying and wave-filtering process in order to the voltage exported 220V-20V Industrial Frequency Transformer 41; Level switch module 43 is connected with rectifier filer 42, in order to the voltage modulated after rectifying and wave-filtering is become DC15V voltage; Described first Voltage stabilizing module 45 is connected with level switch module 43, and the second Voltage stabilizing module 46 is connected with the first Voltage stabilizing module 45, and described first Voltage stabilizing module 45 and the second Voltage stabilizing module 46 are in order to become the operating voltage of host computer control module 3 by described DC15V photovoltaic conversion; Described first Voltage stabilizing module 45 is also connected with described 12V/7AH battery 44, in order to adopt powered battery when described tension electronic fence intrusion detector power-off.
[communication module 5]
Described communication module 5 is connected with host computer control module 3, and it adopts MAX485 master chip communication mechanism, utilizes difference half-duplex principle, has the features such as transfer rate is high, distance.Described communication module 5 is in order to realize the real-time communication with external unit.
[alarm module 6]
Described alarm module 6 is connected with host computer control module 3, and described alarm module adopts relay isolation and amplifier, produces corresponding alarm output signal by host computer control module.
Described alarm module 6 comprises hummer and infrared emission and infrared receiver correlation module; Described hummer is connected with host computer control module 3, in order to alarm of sounding; Described infrared emission is connected with host computer control module 3 with infrared receiver correlation module, in order to produce alerting signal to illegal dismounting equipment.
[display module 7]
Shown in composition graphs 3, described display module 7 is connected with host computer control module 3, and it adopts LED to realize the display of defence area duty, can show current Defence areas alarm state, invasion position and power work state in real time.
Tension electronic fence intrusion detector of the present invention organically integrates the functions such as stop, deterrence, warning, that a kind of brand-new intelligent circumference stops security alarm product, ensure that the change of environment can not cause the change of tension force alarm threshold value, revolutionize the shortcoming that is poor, that easily report by mistake of circumference Safety defence detector environmental suitability in the past.
Embodiment two
The present embodiment provides the detection method of the tension electronic fence intrusion detector described in a kind of embodiment one, and the flow process of this detection method as shown in Figure 5, comprises the following steps:
The tension variation of described tension force detecting module detection tension electronic fence, draws tension value feature, generates tension force voltage signal;
The tension force voltage signal that tension force detecting module exports by described signal conversion module amplifies output;
First AD conversion module in described host computer control module carries out AD conversion to the tension force voltage signal after amplification, then the digital signal obtained after conversion is carried out sampling analysis process by host computer control module, according to the actual service condition of tension electronic fence, to defence area preset address data, static tensile Value Data is preset to tension electronic fence, relaxation data, cut off data and alarm threshold value data etc., the uninterrupted data monitoring and sample the collection of tension force detecting module in real time, judgement is compared with preset data, determine tension variation position and the reason of tension electronic fence, send corresponding alerting signal,
Described alarm module receives described alerting signal and sends warning;
Described power module is that host computer control module is powered; 220V-20V Industrial Frequency Transformer access 220V alternating current in described power module, and 220V alternating current is carried out power frequency transform to 220V-20V voltage; Rectifier filer in described power module carries out rectifying and wave-filtering process to the voltage that 220V-20V Industrial Frequency Transformer exports; Voltage modulated after rectifying and wave-filtering is become DC voltage by the level switch module in described power module; Described DC voltage is changed into the operating voltage of host computer control module by the first Voltage stabilizing module in described power module and the second Voltage stabilizing module; Battery in described power module when described tension electronic fence intrusion detector power-off as stand-by power supply.
Described communication module realizes the real-time communication of tension electronic fence intrusion detector and external unit;
Described display module shows current Defence areas alarm state, invasion position and power work state in real time.
Embodiment three
The present embodiment provides a kind of tension electronic fence intrusion detection method, comprises the following steps:
Step one, the tension variation of detection tension electronic fence, draws tension value feature, generates tension force voltage signal;
Step 2, the tension force voltage signal exported by tension force detecting module amplifies;
Step 3, converts digital signal to and carries out analysis judgement, determine tension variation position and the reason of tension electronic fence, send intrusion alarm by the tension force voltage signal after amplification.
Energizing step: 220V alternating current is carried out power frequency transform to 220V-20V voltage, rectifying and wave-filtering process is carried out to 220V-20V voltage, the voltage modulated after rectifying and wave-filtering is become DC voltage, then DC voltage is changed into the operating voltage of needs.
Stand-by power supply step: the DC voltage provided by battery changes into the operating voltage of needs.
Step display: show current Defence areas alarm state in real time, invade the step display of position and power supply state.

Claims (6)

1. a tension electronic fence intrusion detector, is characterized in that, comprising:
Tension force detecting module, is connected with tension electronic fence by pressure transducer, in order to detect the tension variation of tension electronic fence, draws tension value feature, generates tension force voltage signal;
Signal conversion module, communicates with described tension force detecting module and is connected, and amplifies output in order to the tension force voltage signal exported by tension force detecting module; Described signal conversion module comprises a discharge circuit, and described discharge circuit comprises operational amplifier, resistance R3, resistance R4, resistance R7, resistance R9, electric capacity C11, electric capacity C13; The reverse input end of described operational amplifier is connected with the output terminal VA1 of tension force detecting module by resistance R3, and the input end in the same way of operational amplifier is connected with the output terminal VA2 of tension force detecting module by resistance R4; The output terminal of operational amplifier meets total output terminal VO by resistance R9, and the other end of described resistance R9 is also by electric capacity C13 ground connection; Be connected with a feedback circuit between operational amplifier output terminal and reverse input end, described feedback circuit is the circuit of electric capacity C11 and resistance R7 parallel connection; The tension force voltage signal that described output terminal VA1, VA2 export becomes voltage VO=VA2+R7 × (VA2-VA1)/R3 after described operational amplifier amplifies; Time static, the voltage of output terminal VA1 and VA2 is equal;
Host computer control module, communicates with described signal conversion module and is connected, and judges in order to carry out analysis to the tension force voltage signal after amplification, determine size and the situation of change of the tension force of tension electronic fence,, compare with the alarming threshold value pre-set meanwhile, judge whether to report to the police;
Power module, is connected with described host computer control module, with thinking that host computer control module is powered;
Alarm module, is connected with described host computer control module, in order to send warning.
2. tension electronic fence intrusion detector according to claim 1, is characterized in that, described tension electronic fence intrusion detector also comprises:
Communication module, is connected with described host computer control module, in order to realize the real-time communication of tension electronic fence intrusion detector and external unit;
Display module, is connected with described host computer control module, in order to show current Defence areas alarm state, invasion position and power work state in real time.
3. tension electronic fence intrusion detector according to claim 1, is characterized in that: described host computer control module comprises an AD conversion module; Described AD conversion module is connected with described discharge circuit, in order to carry out AD conversion to the tension force voltage signal after amplification, carries out analysis then the digital data transmission obtained after conversion to described host computer control module and judges.
4. tension electronic fence intrusion detector according to claim 1, is characterized in that, described power module comprises:
220V-20V Industrial Frequency Transformer, in order to access 220V alternating current, and carries out power frequency transform in 220V-20V voltage range by 220V alternating current;
Rectifier filer, is connected with described 220V-20V Industrial Frequency Transformer, carries out rectifying and wave-filtering process in order to the voltage exported 220V-20V Industrial Frequency Transformer;
Level switch module, is connected with described rectifier filer, in order to the voltage modulated after rectifying and wave-filtering is become DC voltage;
First Voltage stabilizing module, is connected with described level switch module;
Second Voltage stabilizing module, is connected with described first Voltage stabilizing module;
Described first Voltage stabilizing module and the second Voltage stabilizing module are in order to change into the operating voltage of host computer control module by described DC voltage; The output terminal of described second Voltage stabilizing module is connected with described host computer control module;
Battery, is connected with described first Voltage stabilizing module, in order to adopt powered battery when described tension electronic fence intrusion detector power-off.
5. a tension electronic fence intrusion detection method, is characterized in that, comprises the following steps:
Step one, the tension variation of detection tension electronic fence, draws tension value feature, generates tension force voltage signal;
Step 2, the tension force voltage signal exported by tension force detecting module amplifies; The tension force voltage signal utilizing a signal conversion module to be exported by tension force detecting module amplifies output; Described signal conversion module comprises a discharge circuit, and described discharge circuit comprises operational amplifier, resistance R3, resistance R4, resistance R7, resistance R9, electric capacity C11, electric capacity C13; The reverse input end of described operational amplifier is connected with the output terminal VA1 of tension force detecting module by resistance R3, and the input end in the same way of operational amplifier is connected with the output terminal VA2 of tension force detecting module by resistance R4; The output terminal of operational amplifier meets total output terminal VO by resistance R9, and the other end of described resistance R9 is also by electric capacity C13 ground connection; Be connected with a feedback circuit between operational amplifier output terminal and reverse input end, described feedback circuit is the circuit of electric capacity C11 and resistance R7 parallel connection; The tension force voltage signal that output terminal VA1, VA2 export becomes voltage VO=VA2+R7 × (VA2-VA1)/R3 after described operational amplifier amplifies; Time static, the voltage of output terminal VA1 and VA2 is equal;
Step 3, converts digital signal to and carries out analysis judgement, determine tension variation position and the reason of tension electronic fence, send intrusion alarm by the tension force voltage signal after amplification.
6. tension electronic fence intrusion detection method according to claim 5, it is characterized in that, described method also comprises:
Energizing step: 220V alternating current is carried out power frequency transform to 220V-20V voltage, rectifying and wave-filtering process is carried out to 220V-20V voltage, the voltage modulated after rectifying and wave-filtering is become DC voltage, then DC voltage is changed into the operating voltage of needs;
Stand-by power supply step: the DC voltage provided by battery changes into the operating voltage of needs;
Step display: show current Defence areas alarm state in real time, invade the step display of position and power supply state.
CN201110296214.4A 2011-09-30 2011-09-30 Intrusion detector and detection method for tension electronic fences Active CN103035091B (en)

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CN103679998A (en) * 2013-11-30 2014-03-26 成都科泰地理信息技术有限公司 A joint alarm security fence with mobile phone as the control terminal
CN103669993A (en) * 2013-11-30 2014-03-26 四川邮科通信技术有限公司 Security fence with automatic alarm function
CN103778738B (en) * 2014-02-28 2016-06-15 四川为民科技有限公司 A kind of tension rail controller
CN105528844A (en) * 2014-09-29 2016-04-27 镇江石鼓文智能化系统开发有限公司 Electronic fence video monitoring system
CN108983667A (en) * 2018-08-01 2018-12-11 惠州市德赛西威汽车电子股份有限公司 Realize the method and its level shifting circuit of peripheral hardware and vehicle module one-way communication
CN110018657A (en) * 2019-04-10 2019-07-16 东莞市拓天智能科技有限公司 A tension electronic fence system
CN110706442B (en) * 2019-09-27 2021-09-14 北京深蓝同创科技有限公司 Capacitance induction type detection system

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