CN2750325Y - Electric field induction detector - Google Patents
Electric field induction detector Download PDFInfo
- Publication number
- CN2750325Y CN2750325Y CN 200420105514 CN200420105514U CN2750325Y CN 2750325 Y CN2750325 Y CN 2750325Y CN 200420105514 CN200420105514 CN 200420105514 CN 200420105514 U CN200420105514 U CN 200420105514U CN 2750325 Y CN2750325 Y CN 2750325Y
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- Prior art keywords
- electric field
- induction
- line
- detector
- utility
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Abstract
The utility model relates to an electric field induction detector, particularly to an electric field sensor. The aim of the utility model is to solve the problems of poor interference rejection, high cost, no installation in the complicated terrain, etc. of the existing detector. The detector is composed of a stabilized voltage power supply 1, a low frequency wave generator 2, a line of induction 3, an output interface 4 and a signal processor 5. The detector is characterized in that an electric field is formed between the line of induction 3 and earth surface or walls. When people approach, touch, cut off or pass across the line of induction, the original electric field is interfered by the human biological electric field, and the original electric field is distorted. When the distortion quantity reaches to the setting standard, the alarm is triggered. The utility model is suitable for the perimeter guarding of standard fences and complicated terrain, such as warehouses, prisons, military bases, industrial and mining enterprises, intelligent districts, villa areas, etc.
Description
Technical field:
The utility model relates to electric-field sensor, and particularly a kind of human-body biological electric field that utilizes disturbs original electric field and the electric field induction perimeter intrusion detecting device of output alarm signal.
Background technology:
The existing sensor that is used for circumferences warnings such as enclosure wall, ground, most active infrared correlative detectors that adopt, though this type of detector is easy to install, but poor anti jamming capability, easily wrong report under conditions such as sunlight, high temperature, thick fog, and cost is higher, can only use in air line distance, can not use on complex-terrain such as be uneven, having many bends or curves.
The utility model content:
Given this, the purpose of this utility model is to provide the electric field induction that a kind of antijamming capability is strong, cost is low, can install and use detector on complex-terrain.
The utility model is achieved in that the direct supplys that provide at different levels are provided civil power after step-down, rectification, voltage stabilizing, produce the low frequency wave of one tens Hz by low frequency wave generator 2 to tens KHz, export the line of induction 3 then to, by line of induction spatial emission electromagnetic wave towards periphery, the line of induction 3 just and ground or electric field of metope formation like this, when unmanned invasion, electric field is stable; When the people invaded, the human-body biological electric field had just disturbed this electric field, and this electric field is distorted, and just triggered warning when this variable quantity satisfies predetermined standard time.
Electric field induction detector of the present utility model (seeing accompanying drawing 1) comprises: stabilized voltage supply 1, low frequency wave generator 2 is parallel to the line of induction 3 of ground or metope, signal processor 5, output interface 4.
Above-mentioned stabilized voltage supply 1 is by transformer B1, bridge rectifier and three terminal regulator IC
1Form.
Above-mentioned low frequency wave produces low-frequency pulse by many resonance fields device and forms after amplifying shaping.
The above-mentioned line of induction 3 is made of the plain conductor that is parallel to ground or metope, and its number can be one or more.
The above-mentioned line of induction 3 can adopt bare metal wire, electric wire, copper core to add steel wire cable, and the aluminium core adds steel wire cable.
Above-mentioned signal processor 5 comprises a plurality of circuit such as the digitized processing, discriminating of signal.
Above-mentioned output interface 4 comprises the delivery outlet that triggers delay circuit, disconnection and two kinds of signals of connection.
During work, the line of induction 3 forms an electric field with ground or metope, when human body disturbs (approaching, touch, cut, cross) this line of induction, the human-body biological electric field has just disturbed former electric field, former electric field is distorted, its variable quantity reaches preassigned and promptly triggers warning after signal processor digitized processing, storage, discriminating, and the length of warning pulse is determined by the triggering delay circuit in the output interface 4.
The utility model has following advantage and effect compared with prior art:
1, tangible entity is given a kind of deterrence of criminal and barrier effect, makes it and dare not act rashly, and rate diminishes crime.
2, can install arbitrarily with complex-terrain, not have the dead angle, unlike infrared ray, microwave wall, be confined to sighting distance and use.
3, rate of false alarm is low, not influenced by sunlight, temperature, thick fog etc.
4, with low cost, can satisfy various level user requirements.
The utility model and main control system, alarm call, CCTV etc. form various perimeter alarm systems, can be widely used in warehouse, prison, military base, industrial and mining enterprises, intellectual communityintellectualized village, villa district etc. and make boundary defence.
Description of drawings:
Accompanying drawing 1: structured flowchart of the present utility model.
Accompanying drawing 2: electrical schematic diagram of the present utility model.
Embodiment:
Embodiment 1:
Electric field induction detector of the present utility model as accompanying drawing 2, is made up of mu balanced circuit, low frequency wave generation circuit, the line of induction, signal processing circuit, output interface.
Civil power is the D.C. regulated power supplies that provide at different levels, multivibrator IC after B1 step-down, bridge rectifier, three end IC1 voltage stabilizings
2Produce one tens Hz to tens KHz low-frequency pulses, this pulse becomes low frequency wave after T1, B2 amplify shaping, export the line of induction 3 then to, by the line of induction 3 spatial emission electromagnetic wave towards periphery, like this line of induction 3 just with ground or electric field of metope formation.When unmanned invasion, this electric field is stable; When the people invades, the bio-electric field of human body has just disturbed former electric field, electric field is distorted, this variation enters signal processor Q and carries out the digitized processing discriminating after B3 isolates, reach preassigned and just export warning and delaying circuit IC3 to, the pulse of IC3 output alarm is to T2, and T2 drives relay J, by 1., 2. terminal output is communicated with, disconnects two kinds of trigger pips, promote peripheral interface equipment (alarm host machine, alarm call, CCTV) and start and report to the police.
Three-terminal voltage-stabilizing IC1 adopts LM7809, multivibrator IC
2Adopt CD4060, signal processor Q adopts OP07, time-delay output circuit IC
3Adopt NE555, transformer B
1Adopt the 220V/12V ring-shaped transformer, B2 adopts Φ 36 pot type magnetic cores, and its turn ratio is 1: 10, and B3 adopts Φ 30 pot type magnetic cores, and its turn ratio is 1: 1, T
1Adopt 13007, T
2Adopt 9013.
Claims (2)
1, a kind of electric field induction detector, comprise stabilized voltage supply (1), low frequency wave generator (2), the line of induction (3), output interface (4), signal processor (5), it is characterized in that: the line of induction (3) is for being parallel to the plain conductor of ground or metope, and its quantity can be one or more.
2, electric field induction detector according to claim 1 is characterized in that: the line of induction (3) can adopt that bare metal wire, electric wire, copper core add steel wire cable, the aluminium core adds steel wire cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420105514 CN2750325Y (en) | 2004-12-10 | 2004-12-10 | Electric field induction detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420105514 CN2750325Y (en) | 2004-12-10 | 2004-12-10 | Electric field induction detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2750325Y true CN2750325Y (en) | 2006-01-04 |
Family
ID=35823708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420105514 Expired - Fee Related CN2750325Y (en) | 2004-12-10 | 2004-12-10 | Electric field induction detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2750325Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103024970A (en) * | 2011-09-24 | 2013-04-03 | 毛振刚 | Intelligent electricity-saving system for classroom illumination |
| CN107437317A (en) * | 2016-05-27 | 2017-12-05 | 孙建华 | A kind of biological response safe sticker and its application method |
-
2004
- 2004-12-10 CN CN 200420105514 patent/CN2750325Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103024970A (en) * | 2011-09-24 | 2013-04-03 | 毛振刚 | Intelligent electricity-saving system for classroom illumination |
| CN107437317A (en) * | 2016-05-27 | 2017-12-05 | 孙建华 | A kind of biological response safe sticker and its application method |
| CN107437317B (en) * | 2016-05-27 | 2022-11-25 | 成都华立安安防科技有限公司 | Biological induction safety paste and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060104 Termination date: 20121210 |