CN202453981U - Door opener for system halted door lock - Google Patents
Door opener for system halted door lock Download PDFInfo
- Publication number
- CN202453981U CN202453981U CN201220061658XU CN201220061658U CN202453981U CN 202453981 U CN202453981 U CN 202453981U CN 201220061658X U CN201220061658X U CN 201220061658XU CN 201220061658 U CN201220061658 U CN 201220061658U CN 202453981 U CN202453981 U CN 202453981U
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- triode
- resistance
- door
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- cpu
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- Withdrawn - After Issue
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Abstract
The utility model relates to an entrance guard control circuit. A door opener for a system halted door lock comprises a battery supply, a CPU (Central Processing Unit), a reset chip U5 and an amplification circuit; the CPU is connected with the reset chip U5; a first pin of the output pin of the reset chip U5 is connected with a control signal output end through the amplification circuit; the amplification circuit comprises a triode Q18, a triode Q19, a triode Q15 and a triode Q21. When the CPU is halted, a watchdog reset circuit is used for outputting a low level signal, the low level signal is subjected to a middle anti-artificial reset signal processing and level state switching, finally a door opening key S2 is pressed down, and a high level appears in a MCL (Microprogram Control Logic) to open the door lock, thereby preventing a user from hitting a door to cause greater economic loss.
Description
Technical field
The utility model relates to a kind of gate inhibition's control circuit.
Background technology
At present gate control system has watchdog circuit CPU is resetted if crash on the general circuit.If but even CPU and peripheral crystal oscillating circuit etc. break down to cause have been resetted in the time of can't working, goalkeeper can't open.Some hotel locksets are had only through mechanical key just can open.Then can't not open door lock if glass door lock itself does not have mechanical key, get into, cause enormous economic loss if think to have only in the inlet chamber through pounding cullet.
Summary of the invention
For the above-mentioned technical matters that solves, the purpose of the utility model provides a kind of door lock deadlock door opener, and CPU and peripheral crystal oscillating circuit can have a kind of circuit to begin to work when breaking down, and door is in opening, guarantee that personnel can inlet chamber in.
In order to realize above-mentioned technical purpose, the technical scheme below the utility model has adopted:
A kind of door lock deadlock door opener, this device comprise battery supply, CPU, reset chip U5 and amplifying circuit, and CPU connects the chip U5 that resets, and output pin first pin of the chip U5 that resets is through amplifying circuit connection control signal output terminal; Described amplifying circuit comprises triode Q18, triode Q19, triode Q15 and triode Q21; The base stage of triode Q18 is through output pin first pin of the described chip U5 that resets of resistance R 24 connections, and emitter connects battery supply, and collector connects the emitter of triode Q19; The base stage of triode Q19 is connected with through resistance R 27 and is provided with the RST button; The collector of triode Q19 connects the base stage and the collector that is connected triode Q15 through resistance R 28 of triode Q15 simultaneously through resistance R 37, the RST button connects resistance R 28 through resistance R 25 simultaneously; The emitter of triode Q15 connects battery supply and the base stage that is connected triode Q21 through resistance R 39 through resistance R 38 simultaneously; The emitter of triode Q21 is connected with door opening key S2, and door opening key S2 connects battery supply, the collector that the collector of triode Q21 connects triode Q15 through resistance R 40 simultaneously be connected described control signal output ends through resistance R 41.
As further improvement, described triode Q18, triode Q19 and triode Q21 all adopt 9012 triodes, and triode Q15 adopts 9013 triodes.
The utility model is owing to adopted above-mentioned technical scheme; When CPU is in deadlock; Watchdog reset circuit output low level signal; Handle and the level state conversion through middle anti-artificial reset signal, door opening key S2 to the end presses MCL and high level occurs with door-lock opening, so as to not make that the user pounds the door and goes into to cause bigger economic loss.In addition, because adopt dry cell power supply, require this circuit can be in work under little power consumption mode.
Description of drawings
Fig. 1 is the electrical block diagram of the utility model.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is done a detailed explanation.
A kind of door lock deadlock door opener as shown in Figure 1, this device comprises battery supply, CPU, reset chip U5 and amplifying circuit, and CPU connects the chip U5 that resets, and output pin first pin of the chip U5 that resets is through amplifying circuit connection control signal output terminal; Described amplifying circuit comprises triode Q18, triode Q19, triode Q15 and triode Q21, and triode Q18, triode Q19 and triode Q21 all adopt 9012 triodes, and triode Q15 adopts 9013 triodes.The base stage of triode Q18 is through output pin first pin of the described chip U5 that resets of resistance R 24 connections, and emitter connects battery supply, and collector connects the emitter of triode Q19; The base stage of triode Q19 is connected with through resistance R 27 and is provided with the RST button; The collector of triode Q19 connects the base stage and the collector that is connected triode Q15 through resistance R 28 of triode Q15 simultaneously through resistance R 37, the RST button connects resistance R 28 through resistance R 25 simultaneously; The emitter of triode Q15 connects battery supply and the base stage that is connected triode Q21 through resistance R 39 through resistance R 38 simultaneously; The emitter of triode Q21 is connected with door opening key S2, and door opening key S2 connects battery supply, the collector that the collector of triode Q21 connects triode Q15 through resistance R 40 simultaneously be connected described control signal output ends through resistance R 41.
The CPU operate as normal is to have individual feeding-dog signal WDI to feed dog for the chip U5 that resets always at ordinary times; Output pin first pin output high level; Triode Q18 ends; Triode Q19, triode Q15 end at this moment, and triode Q21 base stage is in high level, also is in cut-off state even door opening key S2 presses triode Q21.MCL is in low level state, and motor is failure to actuate.
When CPU and peripheral crystal oscillating circuit broke down, program can not normally be moved, and this moment, CPU can't export feeding-dog signal, and the chip U5 that resets did not receive then output low level pulse of reset signal in 1.4 seconds.Triode Q18, triode Q19, triode Q15 conducting at this moment, triode Q21 base stage is in low level, is in conducting state when door opening key S2 presses triode Q21, and MCL is in high level state, and motor rotates door is opened.
When pressing the RST button, CPU also will be in reset mode the people, but RST is in high level when pressing, and triode Q19 prevents the artificial opening door operation that carries out by then circuit is invalid.
Claims (2)
1. door lock deadlock door opener, this device comprises battery supply, CPU, reset chip U5 and amplifying circuit, and CPU connects the chip U5 that resets, and output pin first pin of the chip U5 that resets is through amplifying circuit connection control signal output terminal; It is characterized in that: amplifying circuit comprises triode Q18, triode Q19, triode Q15 and triode Q21; The base stage of triode Q18 is through output pin first pin of the described chip U5 that resets of resistance R 24 connections, and emitter connects battery supply, and collector connects the emitter of triode Q19; The base stage of triode Q19 is connected with through resistance R 27 and is provided with the RST button; The collector of triode Q19 connects the base stage and the collector that is connected triode Q15 through resistance R 28 of triode Q15 simultaneously through resistance R 37, the RST button connects resistance R 28 through resistance R 25 simultaneously; The emitter of triode Q15 connects battery supply and the base stage that is connected triode Q21 through resistance R 39 through resistance R 38 simultaneously; The emitter of triode Q21 is connected with door opening key S2, and door opening key S2 connects battery supply, the collector that the collector of triode Q21 connects triode Q15 through resistance R 40 simultaneously be connected described control signal output ends through resistance R 41.
2. a kind of door lock deadlock door opener according to claim 1, it is characterized in that: triode Q18, triode Q19 and triode Q21 all adopt 9012 triodes, and triode Q15 adopts 9013 triodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220061658XU CN202453981U (en) | 2012-02-24 | 2012-02-24 | Door opener for system halted door lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220061658XU CN202453981U (en) | 2012-02-24 | 2012-02-24 | Door opener for system halted door lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202453981U true CN202453981U (en) | 2012-09-26 |
Family
ID=46869828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220061658XU Withdrawn - After Issue CN202453981U (en) | 2012-02-24 | 2012-02-24 | Door opener for system halted door lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202453981U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102831674A (en) * | 2012-02-24 | 2012-12-19 | 浙江中烟工业有限责任公司 | Door lock dead-halt opening device |
-
2012
- 2012-02-24 CN CN201220061658XU patent/CN202453981U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102831674A (en) * | 2012-02-24 | 2012-12-19 | 浙江中烟工业有限责任公司 | Door lock dead-halt opening device |
| CN102831674B (en) * | 2012-02-24 | 2014-10-08 | 浙江中烟工业有限责任公司 | Door lock dead-halt opening device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120926 Effective date of abandoning: 20141008 |
|
| RGAV | Abandon patent right to avoid regrant |