CN2469506Y - Touch net position detector - Google Patents
Touch net position detector Download PDFInfo
- Publication number
- CN2469506Y CN2469506Y CN 01213648 CN01213648U CN2469506Y CN 2469506 Y CN2469506 Y CN 2469506Y CN 01213648 CN01213648 CN 01213648 CN 01213648 U CN01213648 U CN 01213648U CN 2469506 Y CN2469506 Y CN 2469506Y
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- China
- Prior art keywords
- diode
- infrared
- triode
- control system
- main control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a touch net direction finder, between the two input ends of which a protection circuit, a splitflow resistor, and an infrared emitting diode are connected in parallel. An infrared receiving diode photoelectrically coupled with the infrared emitting diode is connected with a potentiometer resistance in serial, and then is connected with a triode amplifying circuit in parallel. The triode collector is connected with a 12V direct voltage. The triode emitter serving as an output end is connected with an input circuit which controls a host computer bearing detecting interface. The utility model is reasonable in design, simple in structure, low in cost and energy consumption, high in sensitivity, reliable in work, and excellent in performance.
Description
The utility model relates to a kind of detector, is specifically related to a kind of electrical network net-fault azimuth sounder.
Electrical network is the strick precaution equipment of prison, detention house, labour education and rehabilitation school and military depot's indispensability, and along with science and technology development, the intelligent degree of system and reliability are all constantly improving.Existing intelligent high pressure pulse electrical network reaction is quick, and the electrical network output voltage is up to ten thousand volts, and the attempt person of crossing is in case must be shocked by electricity near electrical network, and control system promptly can interlink warning, but owing to can't indicate the orientation of touching net accurately when reporting to the police, makes troubles in time dealing with emergencies and dangerous situations.
The purpose of the utility model aim to provide a kind of simple in structure, cost is low, the net-fault azimuth sounder of less energy consumption, easy to install, highly sensitive, reliable operation.
Technical solution of the present utility model is: two input ends of this net-fault azimuth sounder are serially connected in the electrical network; and holding circuit in parallel between two input ends; shunt resistance; infrared light emitting diode; infrared light emitting diode also is in series with current-limiting resistance; infrared receiver diode one end that carries out the photoelectricity coupling with the infrared diode is connected 12V direct current pressure side; be connected to the input circuit of main control system orientation detection interface behind the other end series connection divider resistance; the base stage of amplifying circuit triode is connected infrared ray and receives on the series connection divider resistance branch road of diode; the collector and emitter of triode is connected to the input circuit of 12V direct current pressure side and main control system orientation detection interface, and connects main control system demonstration net-fault orientation by emitter output high level.
The utility model compared with the prior art, have significant advantage and good effect: when not using net-fault azimuth sounder of the present utility model, electrical network is powered by a stepup transformer on the enclosure wall of one stifled 1km length, report to the police in case touch net, do not know the position of touching net, be unfavorable in time dealing with emergencies and dangerous situations, if the four directions of this enclosure wall is powered separately with stepup transformer respectively, though can realize showing the function in net-fault orientation, because stepup transformer quantity increases, system cost improves greatly; Simultaneously, 220V supply line lengthening suffers artificial destruction easily, has security of system hidden danger; System power dissipation increases greatly, is unfavorable for the UPS power supply; Also increased difficulty of construction.After using net-fault azimuth sounder of the present utility model, the following enclosure wall of a stifled 1km can be divided into multistage by actual conditions, by a step-up transformer centrally connected power supply, cost is low, adorn a net-fault detector for every section, cooperate, can realize the orientation Presentation Function of touching net with main control system.The utility model adopts infrared light emitting diode and infrared receiver diode to carry out the electric current variation of the mode of photoelectricity coupling with electrical network output voltage high pressure 10KV dexterously, be converted to the required low voltage level signal of main control system orientation detection interface, solved a technical barrier with a simple circuit.So the utility model is novel, reasonable in design, simple in structure, install easily, reliable operation, highly sensitive, system energy consumption is low, and technical feature is good.
Fig. 1 is the utility model electrical schematic diagram
Below in conjunction with accompanying drawing the utility model is further described in detail:
Referring to Fig. 1, D
1～D
5Constitute holding circuit, R
1Be shunt resistance, V
1Be infrared light emitting diode, R
2Be the current-limiting resistance of infrared light emitting diode, V
2Be infrared receiver diode, R
3, R
4Be divider resistance, V
3Be transistor amplifier, R
5Be collector resistance, the dotted line right side is the input circuit of main control system orientation detection interface among the figure, and the C point provides the DC voltage of 12V for main control system.
A, the B two ends of this net-fault orientation detection device are serially connected in the electrical network, during operate as normal, because electrical network has leakage current to exist, need R
1Shunting, because electric current is less, R
1The voltage drop at two ends is lower, can not make V
1The emission infrared ray, infrared receiver diode is high-impedance state, triode V
3End the detector output low level.When the people touched net, the electric current that the A that flows through, B are 2 increased, R
1The two ends pressure drop increases, and infrared light emitting diode is luminous, infrared receiver diode V
2Be low resistance state, triode V
3Conducting, D point output high level.Be connected to the input circuit of main control system orientation detection interface.By D
1～D
5Existence, the forward voltage drop of A, B can not be higher than 2.8 volts, oppositely pressure drop can not exceed 0.7 volt, so V
1The sorrow of no overcurrent and reverse breakdown reaches the purpose of protection.
Claims (1)
1; a kind of net-fault azimuth sounder; it is characterized in that two input ends are serially connected in the electrical network; and holding circuit in parallel between two input ends; shunt resistance; infrared light emitting diode; infrared light emitting diode also is in series with current-limiting resistance; infrared receiver diode one end that carries out the photoelectricity coupling with the infrared diode is connected 12V direct current pressure side; be connected to the input circuit of main control system orientation detection interface behind the other end series connection divider resistance; the base stage of amplifying circuit triode is connected infrared ray and receives on the series connection divider resistance branch road of diode; the collector and emitter of triode is connected to the input circuit of 12V direct current pressure side and main control system orientation detection interface, and connects main control system demonstration net-fault orientation by emitter output high level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01213648 CN2469506Y (en) | 2001-03-16 | 2001-03-16 | Touch net position detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01213648 CN2469506Y (en) | 2001-03-16 | 2001-03-16 | Touch net position detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2469506Y true CN2469506Y (en) | 2002-01-02 |
Family
ID=33632571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01213648 Expired - Fee Related CN2469506Y (en) | 2001-03-16 | 2001-03-16 | Touch net position detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2469506Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111443308A (en) * | 2018-12-28 | 2020-07-24 | 深圳市优必选科技有限公司 | Magnetic type steering engine and hot plug detection circuit and orientation detection circuit thereof |
-
2001
- 2001-03-16 CN CN 01213648 patent/CN2469506Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111443308A (en) * | 2018-12-28 | 2020-07-24 | 深圳市优必选科技有限公司 | Magnetic type steering engine and hot plug detection circuit and orientation detection circuit thereof |
| CN111443308B (en) * | 2018-12-28 | 2022-09-23 | 深圳市优必选科技有限公司 | Magnetic type steering engine and hot plug detection circuit and orientation detection circuit thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |