CN2696013Y - Gate inhibition controller with lock power supply state detecting circuit - Google Patents
Gate inhibition controller with lock power supply state detecting circuit Download PDFInfo
- Publication number
- CN2696013Y CN2696013Y CN 200420050537 CN200420050537U CN2696013Y CN 2696013 Y CN2696013 Y CN 2696013Y CN 200420050537 CN200420050537 CN 200420050537 CN 200420050537 U CN200420050537 U CN 200420050537U CN 2696013 Y CN2696013 Y CN 2696013Y
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- lock power
- power supply
- lock
- circuit
- microprocessor
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Abstract
The utility model relates to a gate inhibition controller with lock power supply state detecting circuit. A lock power supply state detecting circuit is arranged in the gate inhibition controller; an input terminal of the lock power supply state detecting circuit is connected with a switched output joint of a controlling electric lock in an output controlling circuit, and an output terminal of the lock power supply state detecting circuit is connected with a microprocessor. The lock power supply state detecting circuit is composed of a photoelectric coupler. A light emitting diode of the photoelectric coupler is connected with the switched output joint of the controlling electric lock in the output controlling circuit to detect the lock power supply state. An output photo triode of the photoelectric coupler connecting with the microprocessor transmits the detecting lock power supply state to the microprocessor in the method of isolation; then the microprocessor dispatches command to control the action of an alarming device. Once deletions of the lock power supply occur (the electric voltage of the electric lock is lower or no-voltage is provided), the detecting circuit can send alarming signals in time to prevent serious accidents from happening.
Description
Technical field
The utility model relates to a kind of access controller, particularly a kind of access controller with lock power state detection circuit.
Background technology
Access controller is the core in the gate control system, Figure 1 shows that the circuit block diagram of existing access controller.Comprise in the general access controller: microprocessor is the control center of controller; This microprocessor connects a plurality of 485 communication interface circuit, comprising a plurality of card reader interface circuit, connects card reader respectively; This microprocessor connects a plurality of status input signal testing circuits, comprising: door state detection circuit, the button testing circuit of going out, intercommunication open the door testing circuit, cabinet pick-proof testing circuit, security protection interlock testing circuit, fire-fighting link testing circuit and system power supply testing circuit etc.; Be provided with a power supply modulate circuit, this power supply modulate circuit is used to provide the electricity consumption of access controller, usually also with door lock and system share.This microprocessor also connects a plurality of output control circuits, controls a plurality of electric locks and a plurality of warning device by output control circuit.In the middle of the use of reality, because the quality of electric lock product is uneven, the phenomenon that power supply often occurs burning, what how to prevent to burn the power supply accident is one of major issue in the access control system.
Summary of the invention
Technical problem to be solved in the utility model is, at the above-mentioned deficiency of existing in prior technology, a kind of access controller with lock power state detection circuit is provided, this access controller is when lock power supply disappearance (electric lock voltage is on the low side or no-voltage), lock power state detection circuit can in time detect and send alerting signal by microprocessor by warning device, to avoid the generation of accidents such as burning power supply, gate inhibition's control fails.
The output control circuit of access controller provided by the utility model is realized by following technical scheme.
A kind of access controller with lock power state detection circuit, comprising: microprocessor is the control center of controller; This microprocessor connects a plurality of 485 communication interface circuit, a plurality of status input signal testing circuit, a plurality of output control circuit, controls a plurality of electric locks and a plurality of warning device by output control circuit; It is characterized in that: be provided with a lock power sense circuit, the input end of this lock power sense circuit connects the switch output contact of the control electric lock in the output control circuit, its output termination microprocessor; This lock power state detection circuit is made up of photoelectrical coupler, the light emitting diode of this photoelectrical coupler connects the switch output contact of the control electric lock in the output control circuit, in order to detect the lock power supply status, the output phototriode of photoelectrical coupler connects microprocessor, with detected lock power supply status, isolate sending microprocessor to, send the action of instruction control warning device by microprocessor.
Described access controller with lock power state detection circuit; it is characterized in that: the two ends of the light emitting diode of this photoelectrical coupler are the switch output contacts that connects the control electric lock in the output control circuit by wave filter, and the curtage that is produced when not being subjected to the electric lock power on/off with the protection photoelectrical coupler impacts.
Described access controller with lock power state detection circuit is characterized in that: be connected to current-limiting resistance in the loop of the light emitting diode of this photoelectrical coupler.
Advantage of the present utility model is:
The utility model has increased the lock power sense circuit in access controller, in case when causing lock power supply disappearance (electric lock voltage is on the low side or no-voltage) because of a variety of causes, testing circuit can in time send alerting signal, can avoid major accident to take place.
For architectural feature of the present utility model and effect thereof are had further understanding, enumerate specific embodiment now and be described with reference to the accompanying drawings as follows:
Description of drawings
Fig. 1 is the circuit block diagram of existing access controller.
Fig. 2 is the circuit block diagram that the utlity model has the access controller of lock power state detection circuit.
Fig. 3 is the circuit diagram that the utlity model has lock power state detection circuit.
Embodiment
Shown in Fig. 2,3, a kind of access controller provided by the utility model with lock power state detection circuit, comprising: microprocessor D is the control center of controller; This microprocessor D connects a plurality of 485 communication interface circuit B, a plurality of status input signal testing circuit A, a plurality of output control circuit C, controls a plurality of electric locks and a plurality of warning device by output control circuit; Be provided with a lock power sense circuit F (as shown in Figure 3), the input end of this lock power sense circuit connects the switch output contact VCLOCK and the CLOCK-COM of the control electric lock in the output control circuit, its output termination microprocessor PF; This lock power state detection circuit is made up of photoelectrical coupler, the light emitting diode of this photoelectrical coupler connects the switch output contact of the control electric lock in the output control circuit, in order to detect the lock power supply status, the output phototriode of photoelectrical coupler connects microprocessor, with detected lock power supply status, isolate sending microprocessor to, send the action of instruction control warning device by microprocessor.In case when causing lock power supply disappearance (electric lock voltage is on the low side or no-voltage) because of a variety of causes, testing circuit can in time send alerting signal, to avoid major hidden danger.
Because electric lock is a kind of inductive load; in the process of power on/off, can produce very big surge; for the protection photoelectrical coupler is not damaged, between the switch output contact VCLOCK of the light emitting diode of the described photoelectrical coupler of lock power state detection circuit and the control electric lock in the output control circuit, be serially connected with wave filter L1, L2.In the loop of the light emitting diode of this photoelectrical coupler, also be connected to current-limiting resistance R.
In the middle of the use of reality, because the quality of electric lock product is uneven, the phenomenon of power supply often appears burning, for in time pinpointing the problems, in access control system of the present utility model, increased the lock power sense circuit, in case when causing lock power supply disappearance (electric lock voltage is on the low side or no-voltage) because of a variety of causes, testing circuit can in time send alerting signal, to avoid major hidden danger.
The above only is the utility model specific embodiment; everyly be familiar with this skill personage and make various modifications or change very easily in view of the above; therefore, all equivalence replacements that the utility model claim spirit is done that do not break away from all should be included in this patent protection domain.
Claims (3)
1, a kind of access controller with lock power state detection circuit, comprising: microprocessor is the control center of controller; This microprocessor connects a plurality of 485 communication interface circuit, a plurality of status input signal testing circuit, a plurality of output control circuit, controls a plurality of electric locks and a plurality of warning device by output control circuit; It is characterized in that: be provided with a lock power sense circuit, the input end of this lock power sense circuit connects the switch output contact of the control electric lock in the output control circuit, its output termination microprocessor; This lock power state detection circuit is made up of photoelectrical coupler, the light emitting diode of this photoelectrical coupler connects the switch output contact of the control electric lock in the output control circuit, in order to detect the lock power supply status, the output phototriode of photoelectrical coupler connects microprocessor, with detected lock power supply status, isolate sending microprocessor to, send the action of instruction control warning device by microprocessor.
2, the access controller with lock power state detection circuit according to claim 1; it is characterized in that: the two ends of the light emitting diode of this photoelectrical coupler are the switch output contacts that connects the control electric lock in the output control circuit by wave filter, and the curtage that is produced when not being subjected to the electric lock power on/off with the protection photoelectrical coupler impacts.
3, the access controller with lock power state detection circuit according to claim 1 is characterized in that: be connected to current-limiting resistance in the loop of the light emitting diode of this photoelectrical coupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420050537 CN2696013Y (en) | 2004-04-30 | 2004-04-30 | Gate inhibition controller with lock power supply state detecting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420050537 CN2696013Y (en) | 2004-04-30 | 2004-04-30 | Gate inhibition controller with lock power supply state detecting circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2696013Y true CN2696013Y (en) | 2005-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420050537 Expired - Fee Related CN2696013Y (en) | 2004-04-30 | 2004-04-30 | Gate inhibition controller with lock power supply state detecting circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2696013Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102176069A (en) * | 2011-01-21 | 2011-09-07 | 上海天美生化仪器设备工程有限公司 | Sensor for detecting door lock state |
-
2004
- 2004-04-30 CN CN 200420050537 patent/CN2696013Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102176069A (en) * | 2011-01-21 | 2011-09-07 | 上海天美生化仪器设备工程有限公司 | Sensor for detecting door lock state |
| CN102176069B (en) * | 2011-01-21 | 2013-03-06 | 上海天美生化仪器设备工程有限公司 | Sensor for detecting door lock state |
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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 |