CN2424504Y - Anti-theft warner with emergency power supply function - Google Patents
Anti-theft warner with emergency power supply function Download PDFInfo
- Publication number
- CN2424504Y CN2424504Y CN 00222861 CN00222861U CN2424504Y CN 2424504 Y CN2424504 Y CN 2424504Y CN 00222861 CN00222861 CN 00222861 CN 00222861 U CN00222861 U CN 00222861U CN 2424504 Y CN2424504 Y CN 2424504Y
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- China
- Prior art keywords
- circuit
- power supply
- stand
- input
- output terminal
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- 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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- Burglar Alarm Systems (AREA)
Abstract
The utility model relates to an anti-theft warner with an emergency power supply function. The utility model is characterized in that a circuit is provided with an emergency power supply circuit which has three input terminals and two output terminals, wherein, one input terminal of the emergency power supply circuit is connected with the negative electrode B of an input power source, one input terminal is connected with the positive electrode A of the input power source, and another input terminal is connected with the input terminal D of an anti-theft detection circuit; one output terminal of the emergency power supply circuit is connected with the input terminal C of an anti-theft device control circuit, and the other output terminal is connected with the input terminal F of a warning sounding circuit. The warner can warn immediately after the input power source is destroyed or has a short circuit or has a broken circuit, and can continuously keep an anti-theft state after the power source recovers; the utility model has the advantages of powerful anti-theft performance, good anti-damage ability and good safety performance.
Description
The utility model relates to a kind of burglar alarm, especially has the burglar alarm of stand-by power supply function.
At present, public burglar alarm mainly is made up of mu balanced circuit, alarm control circuit, radiating circuit, receiving circuit, antitheft testing circuit, warning phonation circuit.After receiving circuit receives the signal that radiating circuit launches, send the alarm control circuit to, the alarm control circuit is opened antitheft testing circuit, starts the warning phonation circuit and report to the police immediately after testing circuit detects signal.The shortcoming of existing burglar alarm is: when the input power supply destroyed, or open circuit, after the short circuit, burglar alarm will lose anti-theft feature, no longer keep former antitheft state behind the power up, therefore, vandal-proof ability and safe reliability are relatively poor.
The purpose of this utility model provides a kind of burglar alarm with stand-by power supply function.
Concrete scheme of the present utility model is: comprise that mu balanced circuit, alarm control circuit, radiating circuit, receiving circuit, antitheft testing circuit, warning phonation circuit is characterized in that: be provided with the stand-by power supply circuit in circuit, this stand-by power supply circuit has three input ends, two output terminals; Wherein the negative pole B of the stand-by power supply circuit input termination input power supply imports the anodal A that termination is imported power supply for one, and another is connected with the input end D of antitheft testing circuit; An output terminal of stand-by power supply circuit meets the input end C of alarm control circuit, the input end F of another phonation circuit taking alarm.
Adopt such scheme, theftproof performance is strong,, short circuit destroyed at the input power supply, can report to the police immediately after opening circuit, and after recovering power supply, can continue the maintenance anti-theft state, and anti-damage ability and security performance are good.
Below in conjunction with drawings and Examples the utility model is further specified:
Fig. 1 is a circuit diagram of the present utility model, also is a kind of embodiment.
Please see Figure 1, the utility model is mainly by mu balanced circuit, alarm control circuit, radiating circuit, receiving circuit, antitheft testing circuit, warning phonation circuit, stand-by power supply circuit.Architectural feature of the present utility model is: be provided with the stand-by power supply circuit in circuit, this stand-by power supply circuit has three input ends, two output terminals; Wherein the negative pole B of the stand-by power supply circuit input termination input power supply imports the anodal A that termination is imported power supply for one, and another is connected with the input end D of antitheft testing circuit; An output terminal of stand-by power supply circuit meets the input end C of alarm control circuit, the input end F of another phonation circuit taking alarm.
As can be seen from Figure 1: the stand-by power supply circuit is made up of testing circuit and feed circuit, the output terminal of testing circuit is connected with the input end of feed circuit, the output terminal of feed circuit promptly is the output terminal (D, F) of stand-by power supply circuit, and the input end of testing circuit promptly is the input end (A, B, C) of stand-by power supply circuit.
By shown in Figure 1: testing circuit is made up of R1, R2, R3, T1; Wherein R1 is serially connected between input positive source (A) and the T1 base stage, and the base stage of R2 and T1 and the emitter of T1 are in parallel, and R3 is serially connected between the collector of the input end (D) of antitheft testing circuit and T1, and the emitter of T1 is connected with the negative pole (B) of importing power supply.
By shown in Figure 1: feed circuit are made up of T2, T3, R4, D1, D2, C1, E; Wherein the T2 base stage is the input control end, and it is connected with the collector of T1, and the T2 collector is connected with the base stage of T3 through R4, the grounded emitter of T2; The collector of T3 is connected with the positive pole of E, and the T3 emitter is connected with the positive pole of D1, D2, and the negative pole of D1, D2 is the output terminal (C, F) of feed circuit, and the negative pole of D1 is simultaneously through C1 ground connection.
The utility model is performed such work: when operate as normal, after 1 voltage stabilizing of alarm input power supply process mu balanced circuit, to 2 power supplies of alarm control circuit.Theft-proofing control circuit 2 is controlled the unlatching of antitheft testing circuits 5 and stand-by power supply circuit or is closed.When theft-proofing control circuit output terminal D when negative, the alarm testing circuit is not worked.R3 two ends no-voltage, input power supply A end is powered to the T1 base stage after R1, R2 dividing potential drop, the T1 conducting, the T2 base voltage is zero not conducting, the not conducting of T3 base stage no-bias.When theft-proofing control circuit output terminal D is timing, alarm testing circuit 5 is started working and is entered anti-theft state.After detecting signal, antitheft testing circuit 5 powers to warning phonation circuit 6, alarm equipment alarm, and to the T1 collector, power by the T2 base stage through R3 for the proper voltage of D simultaneously.Because the A end is positive T1 conducting, so, T2 base stage no-voltage, not conducting of T2, T3 is also not conducting not.Destroyed when the alarm power supply, open circuit, input supply terminal no-voltage after the short circuit, no longer to the power supply of C end, because of C1 is filled with voltage, so the C end just continues as.D end is timing because not conducting of A end no-voltage T1, thereby D rectify power supply through R3 to the power supply of T2 base stage, the T2 conducting, the T3 conducting, the T3 in the stand-by power supply circuit through D1, D2 to F end and the power supply of C end.Because F end is being for just, warning phonation circuit 6 warning immediately of starting working.The C end continues to be powered by standby power supply.After input power up power supply, the A end is being for just, and mu balanced circuit 1 is to the power supply of C end, and C holds to just.Because the A end is powered to the T1 base stage through R1 for just, the T1 conducting, T2 ends, and T3 ends, and the stand-by power supply circuit stops to hold power supply to C end, F, and warning phonation circuit 6 stops to report to the police, and circuit returns to the alarm condition before the input power cut-off.This shows that the alarm that the stand-by power supply function is arranged is under anti-theft state, the input power supply is destroyed, or reports to the police immediately by short circuit, after opening circuit, and recovers can continue the maintenance anti-theft state behind the power supply, has strengthened antitheft, the anti-damage ability of alarm greatly.
Claims (4)
1. burglar alarm with stand-by power supply function, comprise mu balanced circuit, alarm control circuit, radiating circuit, receiving circuit, antitheft testing circuit, warning phonation circuit, it is characterized in that: in circuit, be provided with the stand-by power supply circuit, this stand-by power supply circuit has three input ends, two output terminals; Wherein the negative pole (B) of the stand-by power supply circuit input termination input power supply is imported the positive pole (A) that termination is imported power supply for one, and another is connected with the input end (D) of antitheft testing circuit; An output terminal of stand-by power supply circuit connects the input end (C) of alarm control circuit, the input end of another phonation circuit taking alarm (F).
2. the burglar alarm with stand-by power supply function according to claim 1, it is characterized in that: the stand-by power supply circuit is made up of testing circuit and feed circuit, the output terminal of testing circuit is connected with the input end of feed circuit, the output terminal of feed circuit promptly is the output terminal (D, F) of stand-by power supply circuit, and the input end of testing circuit promptly is the input end (A, B, C) of stand-by power supply circuit.
3. the burglar alarm with stand-by power supply function according to claim 2 is characterized in that: testing circuit is made up of R1, R2, R3, T1; Wherein R1 is serially connected between input positive source (A) and the T1 base stage, and the base stage of R2 and T1 and the emitter of T1 are in parallel, and R3 is serially connected between the collector of the input end (D) of antitheft testing circuit and T1, and the emitter of T1 is connected with the negative pole (B) of importing power supply.
4. the burglar alarm with stand-by power supply function according to claim 2 is characterized in that: feed circuit are made up of T2, T3, R4, D1, D2, C1, E; Wherein the T2 base stage is the input control end, and it is connected with the collector of T1, and the T2 collector is connected with the base stage of T3 through R4, the grounded emitter of T2; The collector of T3 is connected with the positive pole of E, and the T3 emitter is connected with the positive pole of D1, D2, and the negative pole of D1, D2 is the output terminal (C, F) of feed circuit, and the negative pole of D1 is simultaneously through C1 ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00222861 CN2424504Y (en) | 2000-04-21 | 2000-04-21 | Anti-theft warner with emergency power supply function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00222861 CN2424504Y (en) | 2000-04-21 | 2000-04-21 | Anti-theft warner with emergency power supply function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2424504Y true CN2424504Y (en) | 2001-03-21 |
Family
ID=33587515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00222861 Expired - Fee Related CN2424504Y (en) | 2000-04-21 | 2000-04-21 | Anti-theft warner with emergency power supply function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2424504Y (en) |
-
2000
- 2000-04-21 CN CN 00222861 patent/CN2424504Y/en not_active Expired - Fee Related
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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 |