CN1031736C - Alarm device for radio communications outage of long-distance power installation - Google Patents
Alarm device for radio communications outage of long-distance power installation Download PDFInfo
- Publication number
- CN1031736C CN1031736C CN 93114912 CN93114912A CN1031736C CN 1031736 C CN1031736 C CN 1031736C CN 93114912 CN93114912 CN 93114912 CN 93114912 A CN93114912 A CN 93114912A CN 1031736 C CN1031736 C CN 1031736C
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- Prior art keywords
- warning device
- emitter
- triode
- signal
- power
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Abstract
The present invention relates to an alarm device for the radio communication outage of an electric power installation. The present invention is characterized in that the alarm device comprises a power supply which comprises a voltage reducing circuit, a rectification circuit and a voltage stabilizing circuit, an emitting device, a receiving device, an outage alarm which can send out an alarm signal, and an outage control device, wherein the emitting device emits a radio signal with a particular frequency in the air in a normal monitoring state, and the emitting device stops working when an electric power facility is stolen or the electricity is cut because of failure; the receiving device receives the radio signal sent out by the emitting device; an input end of the outage control device is connected with an output end of the receiving device; when the receiving device receives a signal with the particular frequency from the emitting device, the alarm does not send out the alarm signal through the outage; otherwise, the alarm sends out the alarm signal through the outage.
Description
The present invention relates to a kind of electric power facility warning device, particularly relate to a kind of alarm device for radio communications outage of long-distance power installation.IPCG08B25/00。
The anti-theft measure imperfection of existing power facility is to making all have a large amount of electric power facilities stolen every year.For example existing electric power facility radio anti-theft alarm equipment, generally be when taking place to steal feelings, the radiating circuit of warning device is to aerial emission wireless alarm signal, the alerting signal that the joint defence personnel provide according to receiving trap, launch an attack and arrest criminal, the shortcoming of this warning device is, when radiating circuit is out of order or during artificial destruction, receiving trap does not receive alerting signal, thinks operate as normal by mistake.
The objective of the invention is to overcome the above-mentioned shortcoming in the prior art, a kind of alarm device for radio communications outage of long-distance power installation that is used for electric power facility is provided, when the emitter of stolen when outage of power equipment or warning system breaks down, can learn at once that with this device the field electric facility goes wrong.
In order to realize purpose of the present invention, alarm device for radio communications outage of long-distance power installation of the present invention comprises:
Power supplier, its input end links to each other with the line voltage of power transformer or power line network.It comprises reduction voltage circuit, rectification circuit and mu balanced circuit;
Emitter, place power transformer or place the end of electric power facility, the DC voltage of power supply device output is as the power supply of emitter, when normal monitoring state, emitter is to the radio signal of aerial emission characteristic frequency, stolen or break down and when cutting off the power supply, emitter quits work when electric power facility.
Receiving trap places indoor duty room, the radio signal that receiving and transmitting unit sends.
Can send the disconnected news warning device of alerting signal;
Disconnected news control device, its input end links to each other with the output terminal of receiving trap; When receiving trap receives the set specific frequency signal of emitter, make disconnected news warning device not send alerting signal, when receiving trap is not received the signal of emitter, make the work of disconnected news warning device send alerting signal.
The present invention is owing to adopted the disconnected news of radio type of alarm, and it can avoid the false alarm phenomenon effectively.
Describe most preferred embodiment of the present invention in detail below in conjunction with accompanying drawing, so that be illustrated more clearly in technical scheme of the present invention and other advantage.
Fig. 1 is a warning device circuit block diagram of the present invention.
Fig. 2 (A), Fig. 2 (B) are embodiment of the invention emitter circuit theory diagrams, 3 of L, the M among Fig. 2 (A), N respectively with Fig. 2 (B) in L ', M ', three corresponding connections of N ' and constitute a complete circuit.
Fig. 3 is an embodiment of the invention power supply device circuit theory diagrams.
Fig. 4 (A), Fig. 4 (B) are embodiment of the invention receiving trap and disconnected news control device circuit theory diagrams, 4 of C, the D among Fig. 4 (A), E, F respectively with Fig. 4 (B) in C ', D ', E ', four corresponding connections of F ' and constitute a complete circuit.
Fig. 5 is the circuit theory diagrams of the disconnected news of embodiment of the invention warning device.
Fig. 6 is the circuit theory diagrams of embodiment of the invention light indicating circuit.
The emitter of the embodiment of the invention adopts the civil band frequency range as carrier wave frequency range, and its frequency is 40.2MHz.This emitter is launched sound signal in the air by the sky alignment by high frequency carrier.
As shown in drawings, emitter is made up of audio oscillation modulation circuit, carrier frequency generation circuit, power drive level, power emission level and antenna.
The audio oscillation modulation circuit is by R
1To R
4, D
1To D
4, BG
5, BG
6C
1, C
2Form.
BG
1Form carrier frequency generation circuit with crystal oscillator TA8 and 2CC13 etc.To produce the carrier frequency of 40.2MHz.
BG
2, BG
3Form the power drive level, BG
4Be the power emission level.
Audio oscillation modulation circuit and carrier frequency generation circuit produce carrier frequency and modulate after the power drive level gains processing and amplifying, then by the output of power emission level, and by day aerial transmitting carrier frequency ripple of alignment.
Power supply system:
By two branch line voltage step-down transformers, and 78 voltage stabilizings are that routine module is formed.
The V of the elementary tie-in line voltage of one of them power transformer
ABArticle two, line, its voltage is 380V, the V of another transformer tie-in line voltage
BCArticle two, line, its voltage is 380V.
A road of its power supply RV supply audio frequency oscillatory circuit in emitter, another road power supply 24V supplies with the radiating circuit network.But its advantage is a gamut ground monitoring power electric circuit network.When it had a line electricity line of force to be cut off, warning circuit just can produce alerting signal.
Embodiment of the invention receiving trap is the designated lane receiver.
Receiving trap and disconnected news control device circuit are as shown in Figure 4.
Receiving trap comprises the FM reception system that is made up of BG13 BG1-BG6, D
1, D
2The mixing network of forming, BG
7-BG
9Form voltage amplifier stage.
Break and interrogate control device as shown in Figure 4, it comprises triode BG10, BG11 and BG12, diode D
1, relay J
1, capacitor C
1, C
2And C
3And resistance R
1, R, the base stage of BG10 links to each other with the output terminal of receiving trap as the input end of disconnected news control device.Resistance R
1And capacitor C
1Link to each other with base stage with the emitter of BG10 respectively and link to each other capacitor C with power supply negative terminal
2With diode D
1Series connection between the base stage of the collector of BG10 and BG11, diode D
1Positive pole link to each other with the collector of BG11, the base stage of BG12 links to each other capacitor C with the collector of BG11
1Be connected between the base stage and power supply negative terminal of BG12 resistance R
2And relay J
1Link to each other and link to each other with power positive end with the collector of BG10 and BG12 respectively, two normally closed switchs on relay road insert described disconnected news warning device and light or display circuit respectively.
Disconnected news warning device is by BG
1, BG
2And ICAN7114 sound equipment power block is formed.BG
1, BG
2Form audio oscillator circuit.IC7114 constitutes power-amplifier stage.
Lighting display circuit is made up of power supply and luminescent device.
As Fig. 4, Fig. 5, shown in Figure 6, that is to say, when receiver is received this passage natural frequency, BG13, BG1, BG2 and mixing network produce the intermediate-freuqncy signal of three 465RHz, deliver to the intermediate amplifying circuit of being made up of BG3-BG6.Then through discriminator network＜by D
1, D
2Form deliver to disconnected news control circuit through BG7-BG9 voltage drive amplifier stage to power amplifier again.Cutting off disconnected news this moment reports to the police.When receiving the signal that emitter sends, BG11, BG12 is full to close pilot relay J
1Adhesive, J
1J
1-1, J
1-2Adopt the normally closed contact mode.J
1To break news warning device and light indicating circuit of normally closed contact disconnects during adhesive, also produces with regard to the alarm free signal, also shown the safe operation of electric power facility simultaneously.
Stolen and cut off the power supply when electric power facility, or the emitter of this warning device is when destroyed, and emitter does not transmit, and receiving trap does not receive the signal that emitter sends yet, and at this moment, BG11 and BG12 in the disconnected news control device end relay J
1Reset J
1-1, J
1-2To break and interrogate warning device and the connection of light indicating circuit, thereby disconnected news warning device sends the siren chimes of doom and pilot lamp is bright, informs that operator on duty's field electric facility goes wrong, and goes to check before in time sending the special messenger.
As shown in Figure 4, the base loop termination of the BG1 of the receiving trap of this device has the inspection switch.Normal operating conditions with check valve control detection warning system.BG1 is by to making disconnected news warning device be operated in disconnected news state of a control when switch connection, the BG11 in this moment alarm control circuit, and 12 end, J
1Discharge audio oscillator circuit and the lighting display circuit of connecting warning circuit, in order to check the operate as normal that receives warning system.Test report to the police night every day once, to check the operate as normal of warning device.
The function of this device is the antitheft of prevention electric power facility, realizes remote monitoring.
Claims (4)
1. the disconnected news of electric power facility radio warning device is characterized in that this warning device comprises:
Power supplier, its input end links to each other with the line voltage of power transformer or power line network, and it comprises reduction voltage circuit, rectification circuit and mu balanced circuit;
Emitter, place on the power transformer or place the end of electric power facility, the DC voltage of power supply device output is as the power supply of emitter, when normal monitoring state, emitter is to the radio signal of aerial emission frequency undetermined, stolen or break down and when cutting off the power supply, emitter quits work when electric power facility;
Receiving trap places indoor duty room, the radio signal that receiving and transmitting unit sends;
Can send the disconnected news warning device of alerting signal;
Disconnected news control device, its input end links to each other with the output terminal of receiving trap, when receiving trap receives the set specific frequency signal of emitter, make disconnected news warning device not send alerting signal, when receiving trap is not received the signal of emitter, make the work of disconnected news warning device send alerting signal.
2. according to the described warning device of claim 1, it is characterized in that this device also comprises the light indicating circuit of a display alarm.
3. according to the described warning device of claim 1, it is characterized in that: disconnected news control device comprises three triodes (BG10, BG11 and BG12), diode (D
1), relay (J
1), three electric capacity (C
1, C
2And C
3) and two resistance (R
1, R
2), the base stage of first order triode (BG10) links to each other the first resistance (R as the input end of disconnected news control device with the output terminal of receiving trap
1) and the first electric capacity (C
1) link to each other with base stage and link to each other with power supply negative terminal, the second electric capacity (C with the emitter of first order triode (BG10) respectively
2) and diode (D
1) series connection is between the base stage of the collector of first utmost point triode (BG10) and second level triode (BG11), the positive pole of diode links to each other with the base stage of second level triode, the base stage of the 3rd utmost point triode (BG12) links to each other with the collector of second level triode, the 3rd electric capacity (C
3) be connected between third level triode base stage and the power supply negative terminal the second resistance (R
2) and relay (J
1) respectively the collector with first order triode and third level triode link to each other and link to each other with power positive end, two normally closed switchs of relay insert described disconnected news warning device and light indicating circuit respectively.
4. according to the described warning device of claim 1, it is characterized in that, in receiving trap, insert the test button switch, to check the operate as normal of warning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93114912 CN1031736C (en) | 1993-11-29 | 1993-11-29 | Alarm device for radio communications outage of long-distance power installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93114912 CN1031736C (en) | 1993-11-29 | 1993-11-29 | Alarm device for radio communications outage of long-distance power installation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1091218A CN1091218A (en) | 1994-08-24 |
| CN1031736C true CN1031736C (en) | 1996-05-01 |
Family
ID=4990692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93114912 Expired - Fee Related CN1031736C (en) | 1993-11-29 | 1993-11-29 | Alarm device for radio communications outage of long-distance power installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1031736C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100366013C (en) * | 2005-03-31 | 2008-01-30 | 宣昆 | Accident power-off remote transmitting alarming system and alarming method thereof |
| CN102036026B (en) * | 2009-09-28 | 2012-07-18 | 鸿富锦精密工业（深圳）有限公司 | Television anti-theft system and method |
| CN104808704B (en) * | 2015-04-28 | 2017-12-08 | 陈安 | Water control system on remote auto |
-
1993
- 1993-11-29 CN CN 93114912 patent/CN1031736C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1091218A (en) | 1994-08-24 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |