CN104362732B - A kind of Fingerprint Lock supplies power with double circuit automatic transfer switch control circuit - Google Patents
A kind of Fingerprint Lock supplies power with double circuit automatic transfer switch control circuit Download PDFInfo
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- CN104362732B CN104362732B CN201410600460.8A CN201410600460A CN104362732B CN 104362732 B CN104362732 B CN 104362732B CN 201410600460 A CN201410600460 A CN 201410600460A CN 104362732 B CN104362732 B CN 104362732B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
A kind of Fingerprint Lock of the present invention supplies power with double circuit automatic transfer switch control circuit, it is connected between two AC powers, including the first double-point double-throw switch being connected in the first AC power, the second double-point double-throw switch being connected in the second AC power, and the double-pole contact being connected with two AC power live wires and zero line respectively；Described double-pole contact includes the first solenoid, the second solenoid, two single-pole double-throw switch (SPDT)s and two positive feedback module compositions.The present invention can be automatically according to power supply situation switching power supply between duplex feeding power supply or duplex feeding circuit, and the warning system power supply handoff procedure after utilizing positive feedback module to strengthen power failure improves warning system reliable operation degree.
Description
Technical field
The present invention relates to electronic circuit field, the automatic transfer switch control circuit in particular it relates to a kind of Fingerprint Lock supplies power with double circuit.
Background technology
Safety defense monitoring system is application optical fiber, coaxial cable or microwave transmission video signal in the loop that it closes, and from imaging to image the system showing and recording composition independent completion.It can in real time, image, the truly monitored object of reflection, the most greatly extend the viewing distance of human eye, and expand the function of human eye, it can replace monitoring the most for a long time under rugged environment, allow people it can be seen that monitored on-the-spot all situations actually occurred, and recorded by video recorder.Illegal invasion is reported to the police by warning system equipment simultaneously, and the alarm signal input alarm host machine of generation, alarm host machine triggers monitoring system video recording record.
The application of safety-protection system is increasingly extensive at present, particularly applies in intelligent fingerprint lock.Due to the particularity of application target, continue power-off and will result in serious consequence.Lawless person escapes video monitoring often through destroying safety-protection system service cable or destroys alarm device.
Summary of the invention
For ensureing the power supply safety of intelligent fingerprint lock and uninterrupted power supply, the invention discloses a kind of Fingerprint Lock and supply power with double circuit automatic transfer switch control circuit.
A kind of Fingerprint Lock of the present invention supplies power with double circuit automatic transfer switch control circuit, it is connected between two AC powers, it is characterized in that, including the first double-point double-throw switch being connected in the first AC power, the second double-point double-throw switch being connected in the second AC power, and the double-pole contact being connected with two AC power live wires and zero line respectively；
Described double-pole contact includes the first solenoid, second solenoid, two single-pole double-throw switch (SPDT)s and two positive feedback module compositions, two coiled contact of described first solenoid connect live wire and the zero line of the first AC power respectively, two coiled contact of the second solenoid connect live wire and the zero line of the second AC power respectively, the iron core dead in line of two solenoids, therebetween described 2 single-pole double-throw switch (SPDT)s are arranged at distance midpoint, the not moved end of said two single-pole double-throw switch (SPDT) connects the feeder ear of electrical equipment, two moved ends of each single-pole double-throw switch (SPDT) connect live wire or the zero line of different AC power respectively；
Each described positive feedback module is connected in the wire loop of a solenoid, is made up of current-limiting resistance and short circuit pipe；Described short circuit pipe is PMOS, and source electrode connects one end of current-limiting resistance, and drain electrode connects the other end of current-limiting resistance, the grid of short circuit pipe and the coiled contact of first solenoid and connects, and the short circuit grid of pipe is connected with the coiled contact of another solenoid.
Preferably, the cutter of described single-pole double-throw switch (SPDT) is connected by ball bearing with not moved end.
Preferably, it is in series with light emitting diode between moved end and the AC power of described single-pole double-throw switch (SPDT).
A kind of Fingerprint Lock of the present invention supplies power with double circuit automatic transfer switch control circuit, can be automatically according to power supply situation switching power supply between duplex feeding power supply or duplex feeding circuit, and the warning system power supply handoff procedure after utilizing positive feedback module to strengthen power failure, improve warning system reliable operation degree.
Accompanying drawing explanation
Fig. 1 is one detailed description of the invention schematic diagram of the present invention；
Mark and corresponding parts title: LN1-the first AC power in accompanying drawing, LN2-the second AC power, SW1-the first double-point double-throw switch, SW2-the second double-point double-throw switch, SW3-single-pole double-throw switch (SPDT), KF1-the first solenoid, KF2-the second solenoid, D-light emitting diode, P-feeder ear, R-current-limiting resistance, MP-short circuit pipe, the magnetic force direction that in figure, lateral arrows causes after representing solenoid energising.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
A kind of Fingerprint Lock of the present invention supplies power with double circuit automatic transfer switch control circuit, it is connected between two AC powers, including the first double-point double-throw switch being connected in the first AC power, the second double-point double-throw switch being connected in the second AC power, and the double-pole contact being connected with two AC power live wires and zero line respectively；
Described double-pole contact includes the first solenoid, second solenoid, two single-pole double-throw switch (SPDT)s and two positive feedback module compositions, two coiled contact of described first solenoid connect live wire and the zero line of the first AC power respectively, two coiled contact of the second solenoid connect live wire and the zero line of the second AC power respectively, the iron core dead in line of two solenoids, therebetween described 2 single-pole double-throw switch (SPDT)s are arranged at distance midpoint, the not moved end of said two single-pole double-throw switch (SPDT) connects the feeder ear of electrical equipment, two moved ends of each single-pole double-throw switch (SPDT) connect live wire or the zero line of different AC power respectively；
Each described positive feedback module is connected in the wire loop of a solenoid, is made up of current-limiting resistance and short circuit pipe；Described short circuit pipe is PMOS, and source electrode connects one end of current-limiting resistance, and drain electrode connects the other end of current-limiting resistance, the grid of short circuit pipe and the coiled contact of first solenoid and connects, and the short circuit grid of pipe is connected with the coiled contact of another solenoid.
nullAs shown in Figure 1,Two AC powers LN1 and LN2 equal normal power supply during use,Assume under original state, to use the first AC power LN1 to power,First the first double-point double-throw switch being connected on LN1 live wire and zero line is closed,Make the first solenoid KF1 energising，According to electromagnetic induction principle，First solenoid produces magnetic field，The cutter of single-pole double-throw switch (SPDT) is attracted towards moved end, left side as shown in Figure 1，The feeder ear P and the first AC power that make electrical equipment connect，For simplifying in Fig. 1，Only depict a single-pole double-throw switch (SPDT)，Actual should be that the cutter of two single-pole double-throw switch (SPDT)s is all attracted by the iron core of the first solenoid，The live wire and the zero line that make the first AC power are connected with two feeder ears of electrical equipment respectively，Form closed-loop path，Making the first power supply is that electrical equipment is powered，The second double-point double-throw switch now connected on Guan Bi second switch power supply LN2，Owing to cutter is locked by the first inductance coil，Although therefore the second inductance coil energising produces magnetic field，But formation loop can not be connected with electrical equipment.Wherein the cutter of single-pole double-throw switch (SPDT) should use the connected mode that rotating torque is little, such as ball bearing etc. with the connection of not moved end.
A kind of Fingerprint Lock of the present invention supplies power with double circuit automatic transfer switch control circuit, additionally use positive feedback module to be connected in the wire loop of solenoid, depict the positive feedback module (in dotted line frame) being connected in the second inductance coil as shown in Figure 1, be made up of current-limiting resistance and short circuit pipe；Described short circuit pipe is PMOS, source electrode connects one end of current-limiting resistance, drain electrode connects the other end of current-limiting resistance, the grid of short circuit pipe and the coiled contact of first solenoid and connects, and the grid of short circuit pipe and the coiled contact of first solenoid connect, when the first inductance coil is powered normal, gate pmos pole tension keeps high pressure, makes PMOS disconnect, and current-limiting resistance is connected in series in the second inductance coil, making the second induction coil current reduce, corresponding magnetic force reduces.When the first solenoid disconnects, gate pmos electrode drop is as low as zero, PMOS turns on, the current-limiting resistance being connected in series into the second inductance coil is made to be shorted, electric current increases, when the magnetic force of the first inductance coil disappears, the magnetic force of the second inductance coil increases, the cutter making single-pole double-throw switch (SPDT) is adsorbed in Fig. 1 the moved end near the second inductance coil, the right side, the second AC power is made to be connected power supply with feeder ear P, positive feedback module has two, it is connected on respectively in the first inductance coil and the second inductance coil, and control end, the i.e. grid of short circuit pipe is connected with another inductance coil.The introducing of positive feedback module improves reliability during AC power switching.Can also connect between the moved end of described single-pole double-throw switch (SPDT) and AC power light emitting diode, as shown in Figure 1, two light emitting diodes are connected between two AC powers and two moved ends of single-pole double-throw switch (SPDT) respectively, which AC power is in power supply, corresponding light emitting diode is the most luminous, facilitates operating personnel to observe and failure judgement.
As it has been described above, the present invention can preferably be realized.
Claims (1)
1. a Fingerprint Lock supplies power with double circuit automatic transfer switch control circuit, it is connected between two AC powers, it is characterized in that, including the first double-point double-throw switch being connected in the first AC power, the second double-point double-throw switch being connected in the second AC power, and be connected with two AC power live wires and zero line respectively
Double-pole contact；
Described double-pole contact includes the first solenoid, second solenoid, two single-pole double-throw switch (SPDT)s and two positive feedback module compositions, two coiled contact of described first solenoid connect live wire and the zero line of the first AC power respectively, two coiled contact of the second solenoid connect live wire and the zero line of the second AC power respectively, the iron core dead in line of two solenoids, therebetween described 2 single-pole double-throw switch (SPDT)s are arranged at distance midpoint, the not moved end of said two single-pole double-throw switch (SPDT) connects the feeder ear of electrical equipment, two moved ends of each single-pole double-throw switch (SPDT) connect live wire or the zero line of different AC power respectively；
Each described positive feedback module is connected in the wire loop of a solenoid, is made up of current-limiting resistance and short circuit pipe；Described short circuit pipe is PMOS, and source electrode connects one end of current-limiting resistance, and drain electrode connects the other end of current-limiting resistance, the grid of short circuit pipe and the coiled contact of first solenoid and connects, and the short circuit grid of pipe is connected with the coiled contact of another solenoid；
The cutter of described 2 single-pole double-throw switch (SPDT)s is connected by ball bearing with not moved end；It is in series with light emitting diode between moved end and the AC power of described 2 single-pole double-throw switch (SPDT)s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410600460.8A CN104362732B (en) | 2014-10-31 | 2014-10-31 | A kind of Fingerprint Lock supplies power with double circuit automatic transfer switch control circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410600460.8A CN104362732B (en) | 2014-10-31 | 2014-10-31 | A kind of Fingerprint Lock supplies power with double circuit automatic transfer switch control circuit |
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| Publication Number | Publication Date |
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| CN104362732A CN104362732A (en) | 2015-02-18 |
| CN104362732B true CN104362732B (en) | 2016-08-24 |
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| CN103088609A (en) * | 2011-11-04 | 2013-05-08 | 博西华电器（江苏）有限公司 | Clothes processing device |
| CN203522316U (en) * | 2013-10-21 | 2014-04-02 | 雅达电子国际有限公司 | Input redundancy circuit |
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Effective date of registration: 20180309 Address after: 610000 Sichuan city of Chengdu province Tianfu Tianfu Avenue South Huayang Street No. 846 Patentee after: SICHUAN JINLIBANG INTELLIGENCE POLYTRON TECHNOLOGIES INC. Address before: 610000 No. 68 KELONG North Road, Chengdu, Sichuan, Wuhou District Patentee before: CHENGDU LIBANG TECHNOLOGY CO., LTD. |
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