CN2772145Y - Telephone wire power-off alarm - Google Patents
Telephone wire power-off alarm Download PDFInfo
- Publication number
- CN2772145Y CN2772145Y CN 200420054238 CN200420054238U CN2772145Y CN 2772145 Y CN2772145 Y CN 2772145Y CN 200420054238 CN200420054238 CN 200420054238 CN 200420054238 U CN200420054238 U CN 200420054238U CN 2772145 Y CN2772145 Y CN 2772145Y
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- circuit
- alarm
- telephone wire
- power
- diode
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Abstract
The utility model relates to an alarm device, especially a telephone wire power-off alarm. The utility model comprises a telephone line input circuit, a power-supply indicator circuit of the telephone line, an alarm front-end circuit for checking the power-supply state, an alarm output circuit and a power-supply circuit. The input terminal of the telephone line input circuit is connected with telephone lines; the output terminal of the telephone line input circuit is connected with the power-supply indicator circuit of the telephone line in parallel. An isolating circuit is connected in series between the alarm front-end circuit and the power-supply indicator circuit of the telephone line; the alarm front-end circuit, the alarm output circuit and the power-supply circuit are connected with each other. When the telephone circuit is cut off by people on purpose or the power of the telephone circuit is off accidentally for non-artificial reason, the telephone wire power-off alarm of the utility model can alarm to inform users to take effective measures to prevent crimes and exclude non-artificial accidents. The device can realize the purpose of protecting the safety of concerned users' lives and properties and smooth telephonic communication.
Description
Technical field
The utility model relates to warning device, especially a kind of telephone wire dead electricity alarm.
Background technology
Various anti-robbery, theft protection network alarm equipment that at present a lot of telephone subscribers install, general robbery, the theft alert information that all must come the transmission user end to be taken place by telephone line.In the process that the anti-robbery of application, the crime prevention of theft protection network alarm equipment are succeeded, because telephone line is deliberately broken in advance by the people under the still unware in advance situation of user or because of non-artificial fault dead electricity, cause plundering, theft alert information can't be transferred to public security organ or other alert is accepted department, thereby cause anti-ly plunder, the theft protection Failure cases also happens occasionally.This hidden danger is just seriously threatening the safety of these users' life and property.
Summary of the invention
The purpose of this utility model provides a kind ofly deliberately to be broken by the people or reports to the police automatically during because of non-artificial fault dead electricity when telephone wire; remind the user in time to take the telephone wire dead electricity alarm of effective precautionary measures; reach and help the user to avoid crime to succeed, successfully protect the purpose of self life, property safety.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of telephone wire dead electricity alarm, has the telephone wire input circuit, phone-line-powered indicating circuit, detect the warning front end circuit of phone-line-powered state, the warning output circuit, power supply circuits, telephone wire input circuit input is connected with telephone wire, telephone wire input circuit output is in parallel with phone-line-powered indicating circuit, also be provided with buffer circuit between warning front end circuit and phone-line-powered indicating circuit, be connected in series buffer circuit, the warning front end circuit between warning front end circuit and phone-line-powered indicating circuit, the warning output circuit, power supply circuits are connected.
Be the interference between screening phone net and warning front end circuit, the warning output circuit, described phone-line-powered indicating circuit two ends also are parallel with filter circuit.
For closing alarm, also be in series with the alarm switch circuit between described power supply circuits and warning output circuit at unused state.
Be the power supply state that to indicate warning front end circuit and warning output circuit, the operating state of alarm switch circuit, alarm work condition indication circuit also in parallel between described alarm switch circuit and warning output circuit.
For making telephone wire dead electricity alarm in that have or not under the situation of civil power can both operate as normal, described power supply circuits are by power circuit U1, charging circuit U2, power supply change-over circuit and battery circuit are formed by connecting, charging circuit U2 charges to battery circuit, the power supply change-over circuit is by diode D3, capacitor C 3, resistance R 6, diode D4 and relay J 2 are formed, the normally-closed contact of the negative terminal of diode D3 device switching circuit one end taking alarm and relay J 2, the high potential output of the positive termination power circuit U1 of diode D3, one end of the anode of capacitor C 3 and resistance R 6, the other end of the negative terminal connecting resistance R6 of capacitor C 3, one end of the negative terminal of diode D4 and relay J 2, the positive ending grounding of diode D4, the normally opened contact of relay J 2 is unsettled, the other end ground connection of relay J 2.
The beneficial effects of the utility model are; the utility model telephone wire dead electricity alarm is with after telephone wire is connected; if telephone wire is because of artificially deliberately being broken or non-artificial fault dead electricity; telephone wire dead electricity alarm sends high loudness police whistle sound immediately and reports to the police; the prompting user in time takes the effective remedial measure of safety precaution such as mobile phone alarm or gets rid of non-artificial fault, plays protection personal safety and safety of property and the unimpeded effect of telephonic communication.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the block diagram of the utility model telephone wire dead electricity alarm.
Fig. 2 is the circuit diagram of the utility model telephone wire dead electricity alarm.
Fig. 3 is the circuit diagram of the power circuit U1 in the utility model.
Fig. 4 is the circuit diagram of the charging circuit U2 in the utility model.
Embodiment
The utility model telephone wire dead electricity alarm shown in Fig. 1,2,3,4 has telephone wire input circuit 1, phone-line-powered indicating circuit 2, filter circuit 3, detects warning front end circuit 5, warning output circuit 6, the power supply circuits 9 of phone-line-powered state.Telephone wire input circuit 1 input is connected with telephone wire, telephone wire input circuit 1 output is in parallel with phone-line-powered indicating circuit 2, filter circuit 3 is in parallel with phone-line-powered indicating circuit 2,2 of warning front end circuit 5 and phone-line-powered indicating circuits also are provided with buffer circuit 4, warning front end circuit 5 is connected in series buffer circuit 4 with 2 of phone-line-powered indicating circuits, and warning front end circuit 5, warning output circuit 6, power supply circuits 9 are connected.6 of power supply circuits 9 and warning output circuits also are in series with alarm switch circuit 8,8 in warning output circuit 6 and alarm switch circuit also are parallel with alarm work condition indication circuit 7, power supply circuits 9 are formed by connecting by power circuit U1, charging circuit U2, power supply change-over circuit and battery circuit, and charging circuit U2 charges to battery circuit.Telephone wire input circuit 1 is rectifier bridge BR1, phone-line-powered indicating circuit 2 is composed in series by resistance R 1 and LED 1, buffer circuit 4 is diode D1, warning front end circuit 5 is by triode T1, resistance R 2, resistance R 3, voltage stabilizing didoe DW1 forms, warning output circuit 6 is by triode T2, diode D2, relay J 1, capacitor C 2, resistance R 4 and news Chinese percussion instrument Y1 form, alarm switch circuit 8 is a switch S 1, alarm work condition indication circuit 7 is composed in series by resistance R 5 and LED 2, the power supply change-over circuit is by diode D3, capacitor C 3, resistance R 6, diode D4 and relay J 2 are formed, and battery circuit is made up of battery BAT1.Telephone wire is connected across 1,3 bipods of rectifier bridge BR1; The negative terminal of diode D1 connects 2 pin of rectifier bridge BR1, the b utmost point of the positive termination triode T1 of diode D1; The end of the c utmost point connecting resistance R2 of triode T1 and the b utmost point of triode T2, the e utmost point of triode T1 connects the negative terminal of voltage stabilizing didoe DW1 and an end of resistance R 3, the other end ground connection of resistance R 2, the S1-1 end of another termination switch S 1 of resistance R 3, the anode of capacitor C 2, an end of resistance R 4 and an end of resistance R 5, the positive ending grounding of voltage stabilizing didoe DW1; The C utmost point of triode T2 connects the anode of diode D2 and an end of relay J 1, the e utmost point ground connection of triode T2, the negative terminal of diode D2 is succeeded the other end of electrical equipment J1, the negative terminal of capacitor C 2 and the other end of resistance R 4, the normally opened contact J1-2 of relay J 1 connects the end of news Chinese percussion instrument Y1, the normally-closed contact J1-1 of relay J 1 connects the E end of charging circuit U2, the central contact of relay J 1 connects the positive pole of battery BAT1 and the central contact of relay J 2, the other end ground connection of news Chinese percussion instrument Y1; The negative terminal of the S1-2 terminating diode D3 of switch S 1 and the normally-closed contact J2-1 of relay J 2; The other end of the positive terminating resistor R5 of LED 2, the negativing ending grounding of LED 2; The negative terminal of diode D3 meets the S1-2 end of switch S 1 of switching circuit 8 and the normally-closed contact J2-1 of relay J 2, the Vcc end of the positive termination power circuit U1 of diode D3, the anode of capacitor C 3 and an end of resistance R 6, the other end of the negative terminal connecting resistance R6 of capacitor C 3, the negative terminal of diode D4 and an end of relay J 2, the positive ending grounding of diode D4, the normally opened contact J2-2 of relay J 2 is unsettled, the other end ground connection of relay J 2; One end of 2 pin of one termination rectifier bridge BR1 of resistance R 1, filter circuit 3 capacitor C 1 and the negative terminal of diode D1, the anode of the other end sending and receiving optical diode LED1 of resistance R 1, the negativing ending grounding of LED 1; The other end ground connection of capacitor C 1; The C of power circuit U1 end and D end connect respectively civil power AC220V ~ live wire and zero line, the GND of power circuit U1 holds ground connection; The C of charging circuit U2 end and D end connect respectively civil power AC220V ~ live wire and zero line, the GND of charging circuit U2 holds ground connection; The minus earth of battery BAT1.
Claims (5)
1, a kind of telephone wire dead electricity alarm, it is characterized in that: have telephone wire input circuit (1), phone-line-powered indicating circuit (2), detect the warning front end circuit (5) of phone-line-powered state, warning output circuit (6), power supply circuits (9), telephone wire input circuit (1) input is connected with telephone wire, telephone wire input circuit (1) output is in parallel with phone-line-powered indicating circuit (2), also be provided with buffer circuit (4) between warning front end circuit (5) and phone-line-powered indicating circuit (2), be connected in series buffer circuit (4), warning front end circuit (5) between warning front end circuit (5) and phone-line-powered indicating circuit (2), warning output circuit (6), power supply circuits (9) are connected.
2, telephone wire dead electricity alarm according to claim 1 is characterized in that: described phone-line-powered indicating circuit (2) two ends also are parallel with filter circuit (3).
3, telephone wire dead electricity alarm according to claim 1 is characterized in that: also be in series with alarm switch circuit (8) between described power supply circuits (9) and warning output circuit (6).
4, telephone wire dead electricity alarm according to claim 3 is characterized in that: also be parallel with alarm work condition indication circuit (7) between described warning output circuit (6) and alarm switch circuit (8).
5, telephone wire dead electricity alarm according to claim 1, it is characterized in that: described power supply circuits (9) are by power circuit U1, charging circuit U2, power supply change-over circuit and battery circuit are formed by connecting, charging circuit U2 charges to battery circuit, the power supply change-over circuit is by diode D3, capacitor C 3, resistance R 6, diode D4 and relay J 2 are formed, the normally-closed contact of the negative terminal of diode D3 device switching circuit (8) one ends taking alarm and relay J 2, the high potential output of the positive termination power circuit U1 of diode D3, one end of the anode of capacitor C 3 and resistance R 6, the other end of the negative terminal connecting resistance R6 of capacitor C 3, one end of the negative terminal of diode D4 and relay J 2, the positive ending grounding of diode D4, the normally opened contact of relay J 2 is unsettled, the other end ground connection of relay J 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420054238 CN2772145Y (en) | 2004-12-10 | 2004-12-10 | Telephone wire power-off alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420054238 CN2772145Y (en) | 2004-12-10 | 2004-12-10 | Telephone wire power-off alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2772145Y true CN2772145Y (en) | 2006-04-12 |
Family
ID=36705928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420054238 Expired - Fee Related CN2772145Y (en) | 2004-12-10 | 2004-12-10 | Telephone wire power-off alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2772145Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111556204A (en) * | 2020-04-22 | 2020-08-18 | 深圳震有科技股份有限公司 | Method, device, equipment and medium for detecting and processing line fault of analog telephone system |
-
2004
- 2004-12-10 CN CN 200420054238 patent/CN2772145Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111556204A (en) * | 2020-04-22 | 2020-08-18 | 深圳震有科技股份有限公司 | Method, device, equipment and medium for detecting and processing line fault of analog telephone system |
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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 |