CN203720246U - Prison high-voltage power network high-voltage output detection circuit - Google Patents
Prison high-voltage power network high-voltage output detection circuit Download PDFInfo
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- CN203720246U CN203720246U CN201420089236.2U CN201420089236U CN203720246U CN 203720246 U CN203720246 U CN 203720246U CN 201420089236 U CN201420089236 U CN 201420089236U CN 203720246 U CN203720246 U CN 203720246U
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- voltage
- divider resistance
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- prison
- fence
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- 238000001514 detection method Methods 0.000 title claims abstract description 16
- 239000003990 capacitor Substances 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 abstract 6
- 230000009545 invasion Effects 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
Abstract
The utility model discloses a prison high-voltage power network high-voltage output detection circuit. The prison high-voltage power network high-voltage output detection circuit comprises a voltage detection module and a voltage comparison output module. The voltage detection module comprises +12 V level, a first voltage dividing resistor R1, a second voltage dividing resistor R2, an optical coupler OC, +3.3 V level and a third voltage dividing resistor R3. The +12 V level is connected with the optical coupler OC successively through the R1 and the R2; the optical coupler is connected with the negative voltage signal line of a high-voltage power network; the negative voltage signal line is grounded; the common end of the R1 and the R2 is connected with the positive voltage signal line of the high-voltage power network; the first output end of the optical coupler is connected with the +3.3 V level; the second output end of the optical coupler is grounded; the common node of the first output end of the optical coupler and the third voltage dividing resistor R3 is connected with the same-phase input end of a voltage comparator; and the anti-phase input end of the voltage comparator is connected with reference voltages. The prison high-voltage power network high-voltage output detection circuit has the advantages of simple structure, convenient operation and high practicality, thereby being suitable for use in a prison.
Description
Technical field
The utility model relates to a kind of prison high-voltage fence High voltage output testing circuit.
Background technology
Fence is current state-of-the-art circumference guard against theft and alarm system, and it is surveyed fence by high-voltage electronic pulse and front end and forms.Electronic fence controller can produce and receive high-voltage pulse signal, produces alerting signal in the time that front end is surveyed fence in net-fault, short circuit, off state, and invasion signal is sent to security alarm center; Front end is surveyed the tangible circumference that fence is made up of the member such as fixed bar and plain conductor, can realize multiple cascading networks.Fence is the anti-more fence of a kind of initiatively invasion, and invasion is gone out to counterattack do behavior, beats back invader, postpones the invasion time, and the life that does not threaten people.
First the barrier effect of fence is embodied in deterrence function, hangs warning sign on metal wire, produces psychological pressure once seeing, and touching has the sensation of electric shock when fence, is enough to make invader to hang back; Secondly fence itself is again tangible barrier, and suitable height and angle are installed, and is difficult to climb up and over.
Prison is as the place of high-risk and high seriousness, because the personnel under detention of its inner supervision is comparatively special, its potential menace to social definitely can not be ignored, and therefore prison is necessary to install fence, and fence produces high-tension electricity personnel under detention is formed to a kind of deterrence.In fence operation, be necessary the voltage in detection of grid.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of prison high-voltage fence High voltage output testing circuit is provided, can detect in real time the voltage on the high-voltage fence of prison, after this voltage is processed and reference voltage make comparisons, the output signal after is relatively as the input signal of subsequent process circuit.
The purpose of this utility model is achieved through the following technical solutions: prison high-voltage fence High voltage output testing circuit, and it comprises that voltage detection module and voltage ratio are compared with output module, voltage detection module is connected compared with output module with voltage ratio;
Comprise+12V of voltage detection module level, the first divider resistance R1, the second divider resistance R2, photo-coupler OC, + 3.3V level and the 3rd divider resistance R3, + 12V level is successively by the first divider resistance R1, the second divider resistance R2 is connected with an input end of photo-coupler OC, another input end of photo-coupler is connected with the negative voltage signal line of high-voltage fence, negative voltage signal line ground connection, the first divider resistance R1 is connected the positive voltage signal line of high-voltage fence with the common port of the second divider resistance R2, the first output terminal of photoelectrical coupler is connected with+3.3V level by the 3rd divider resistance R3, the second output head grounding,
Voltage ratio comprises voltage comparator and reference voltage compared with output module, and the first output terminal of photoelectrical coupler is connected with the 3rd common node of divider resistance R3 and the in-phase input end of voltage comparator, and the inverting input of voltage comparator is connected with reference voltage.
It also comprises filter capacitor C, and the two ends of filter capacitor C are connected with the positive/negative voltage signal line of high-voltage fence respectively.
The beneficial effects of the utility model are: the utility model detects the voltage of prison high-voltage fence in real time, detect real-time, and this voltage through step-down process after with reference voltage comparison, the output signal of voltage comparator can be used as the input signal of subsequent conditioning circuit.The utility model is simple in structure, and convenient operation is practical, is particularly suitable for prison and uses; Filter capacitor C is set, detects more accurately, avoid introducing the control signal of voltage comparator output error after undesired signal.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail, but protection domain of the present utility model is not limited to the following stated.
As shown in Figure 1, prison high-voltage fence High voltage output testing circuit, it comprises that voltage detection module and voltage ratio are compared with output module, voltage detection module is connected compared with output module with voltage ratio;
Comprise+12V of voltage detection module level, the first divider resistance R1, the second divider resistance R2, photo-coupler OC, + 3.3V level and the 3rd divider resistance R3, + 12V level is successively by the first divider resistance R1, the second divider resistance R2 is connected with an input end of photo-coupler OC, another input end of photo-coupler is connected with the negative voltage signal line of high-voltage fence, negative voltage signal line ground connection, the first divider resistance R1 is connected the positive voltage signal line of high-voltage fence with the common port of the second divider resistance R2, the first output terminal of photoelectrical coupler is connected with+3.3V level by the 3rd divider resistance R3, the second output head grounding,
Voltage ratio comprises voltage comparator and reference voltage compared with output module, the first output terminal of photoelectrical coupler and the 3rd common node of divider resistance R3 and the in-phase input end of voltage comparator, the inverting input of voltage comparator is connected with reference voltage, and the output terminal OUT of voltage comparator is connected with the signal input part of MCU.
It also comprises filter capacitor C, and the two ends of filter capacitor C are connected with the positive/negative voltage signal line of high-voltage fence respectively.
This circuit detects the voltage of prison high-voltage fence in real time, this voltage generates new voltage through dividing potential drop after the processing of divider resistance and photo-coupler OC, new voltage again with reference voltage comparison, control signal of voltage comparator output is to follow-up step-up/step-down circuit (not shown in FIG.), so that the voltage on the high-voltage fence of step-up/step-down circuit control prison.
The above is only preferred implementation of the present utility model, be to be understood that the utility model is not limited to disclosed form herein, should not regard the eliminating to other embodiment as, and can be used for various other combinations, amendment and environment, and can, in contemplated scope described herein, change by technology or the knowledge of above-mentioned instruction or association area.And the change that those skilled in the art carry out and variation do not depart from spirit and scope of the present utility model, all should be in the protection domain of the utility model claims.
Claims (2)
1. prison high-voltage fence High voltage output testing circuit, is characterized in that: it comprises that voltage detection module and voltage ratio are compared with output module, and voltage detection module is connected compared with output module with voltage ratio;
Comprise+12V of voltage detection module level, the first divider resistance R1, the second divider resistance R2, photo-coupler OC, + 3.3V level and the 3rd divider resistance R3, + 12V level is successively by the first divider resistance R1, the second divider resistance R2 is connected with an input end of photo-coupler OC, another input end of photo-coupler OC is connected with the negative voltage signal line of high-voltage fence, negative voltage signal line ground connection, the first divider resistance R1 is connected the positive voltage signal line of high-voltage fence with the common port of the second divider resistance R2, the first output terminal of photoelectrical coupler OC is connected with+3.3V level by the 3rd divider resistance R3, the second output head grounding,
Voltage ratio comprises voltage comparator and reference voltage compared with output module, and the first output terminal of photoelectrical coupler OC is connected with the 3rd common node of divider resistance R3 and the in-phase input end of voltage comparator, and the inverting input of voltage comparator is connected with reference voltage.
2. prison according to claim 1 high-voltage fence High voltage output testing circuit, is characterized in that: it also comprises filter capacitor C, and the two ends of filter capacitor C are connected with the positive/negative voltage signal line of high-voltage fence respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420089236.2U CN203720246U (en) | 2014-02-28 | 2014-02-28 | Prison high-voltage power network high-voltage output detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420089236.2U CN203720246U (en) | 2014-02-28 | 2014-02-28 | Prison high-voltage power network high-voltage output detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203720246U true CN203720246U (en) | 2014-07-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420089236.2U Expired - Lifetime CN203720246U (en) | 2014-02-28 | 2014-02-28 | Prison high-voltage power network high-voltage output detection circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN203720246U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459278A (en) * | 2014-12-11 | 2015-03-25 | 四川为民科技有限公司 | Liquid crystal type device and method for measuring voltage of animal pulse electricity net |
-
2014
- 2014-02-28 CN CN201420089236.2U patent/CN203720246U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459278A (en) * | 2014-12-11 | 2015-03-25 | 四川为民科技有限公司 | Liquid crystal type device and method for measuring voltage of animal pulse electricity net |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |