CN107067507B - A kind of intelligent electric-controlled device of electric door lock based on RFID and its working method - Google Patents
A kind of intelligent electric-controlled device of electric door lock based on RFID and its working method Download PDFInfo
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- CN107067507B CN107067507B CN201710112442.9A CN201710112442A CN107067507B CN 107067507 B CN107067507 B CN 107067507B CN 201710112442 A CN201710112442 A CN 201710112442A CN 107067507 B CN107067507 B CN 107067507B
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00571—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by interacting with a central unit
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00182—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C2009/00634—Power supply for the lock
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- Computer Networks & Wireless Communication (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention discloses a kind of intelligent electric-controlled device of electric door lock based on RFID and its working method, the device includes RFID remote controler, RFID decoder, logic judging circuit, electric lock ON-OFF control circuit, muting control circuit, electric lock state feedback sense circuit, buzzer alarm circuit and battery condition detection circuit.It keeps equipment to be in normally closed when the present invention is using after powering on without operation and shuts state, it is unstable to work as equipment accident power-off or instantaneous voltage, vehicle door lock state is still able to maintain after equipment service restoration normal power supply.Logic judging circuit, electric lock state feedback sense circuit and electric lock ON-OFF control circuit of the invention is all made of double loop redundancy protecting circuit, and a route damage not will lead to control failure.The present invention is suitable for the intelligent electric-controlled device of economical RFID that railway systems use, and common electric door lock can be cooperated to use, while not interfering RFID radiofrequency signal, have high safety and reliability.
Description
Technical field
The present invention relates to a kind of electric door lock, especially a kind of electricity that truck door is moved applied to railway systems encrypting remote-control
The electric control gear of dynamic door lock.
Background technique
At present in railway systems using more remote control door gear be using fixed code transmit RFID radiofrequency signal, and
Control circuit is by chip microcontroller, without function of redundancy protection.This common remote control mode has the disadvantage that
1, RFID radiofrequency signal is easy to be influenced by single-chip microcontroller crystal oscillating circuit, and reliability and stability are poor；
2, it could be used without the fixed code transmission of encryption, signal is easy to be cracked and copied, and safety is extremely low；
3, equipment control circuit mostly uses single circuit to design greatly, once damage, can only be opened by way of ruining door and tolling breakdown
Car door causes unnecessary trouble and economic loss；
4, if necessary to intelligent control function, high failure rate, equipment price is more expensive, is not suitable for a large amount of use.
Summary of the invention
To solve the above problems existing in the prior art, the present invention will design that a kind of reliability and stability are high, safety
It is high, maintain easily and the intelligent electric-controlled device of the cheap electric door lock based on RFID and its working method.
To achieve the goals above, technical scheme is as follows: a kind of electric door lock based on RFID is intelligent electric-controlled
Device, including RFID remote controler, RFID decoder, key-press input detection circuit, logic judging circuit, electric lock switch control electricity
Road, muting control circuit, electric lock state feedback sense circuit, buzzer alarm circuit and battery condition detection circuit；
The logic judging circuit respectively with the output end of key-press input detection circuit, electric lock ON-OFF control circuit it is defeated
Enter end, the input terminal of muting control circuit is connected with the output end of battery condition detection circuit；The key-press input detection
The input terminal of circuit receives the output signal of RFID remote controler through RFID decoder；The electric lock state feedback sense circuit
Output end is connect with electric lock equipment；Another input terminal of the muting control circuit through electric lock state feedback sense circuit with
It is connect with electric lock equipment；The output end of the muting control circuit is connect with buzzer alarm circuit；The battery shape
The input terminal of state detection circuit is connect with battery.
Further, whole device includes main electricity circuit, and the main electricity circuit includes HA12N20-
2539 power modules, VRB1205LD-15WR2 power module and RELAY1 normally closed relay, the HA12N20-2539 power supply
Module and VRB1205LD-15WR2 power module are isolation Voltage stabilizing module；The HA12N20-2539 power module and
RELAY1 normally closed relay is connect with VRB1205LD-15WR2 power module respectively；The HA12N20-2539 power module
Input terminal is connect with municipal power grid, and the input terminal of the RELAY1 normally closed relay is connect with battery；Described
HA12N20-2539 power module provides 12V power supply for whole system, and the RELAY1 normally closed relay output end is entire
System provides 12V backup power source, and the VRB1205LD-15WR2 power module provides 5V power supply for whole system.
Further, the RFID remote controler is that have four using HCS301 rolling code chip as the hand-held remote controller of core
A key is unlocking key respectively, shuts key, mute unlocking key and mute shut key；The RFID decoder includes TDH6301
Chip.
Further, the logic judging circuit is double loop logic judging circuit, including circuit 1 and circuit 2 are described
Circuit 1 be used for the judgement under non-mute mode and unlock and shut state, the circuit 2 is opened for judgement under the silent mode
Lock and shut state；The electric lock state feedback sense circuit is double loop redundancy protecting circuit, is all the way electric lock opened point
Signal input testing circuit, another way are normally closed signal input testing circuit of electric lock；The electric lock ON-OFF control circuit packet
It includes unlocking circuit and shuts circuit, the unlocking circuit is double loop redundancy protecting circuit, and described shuts circuit double loop
Redundancy protecting circuit, the unlocking circuit and to shut circuit mutually indepedent.
A kind of working method of the intelligent electric-controlled device of electric door lock based on RFID, comprising the following steps:
A, when RFID remote controler sends RFID signal, RFID signal is converted to four road Transistor-Transistor Logic levels by RFID decoder to be believed
Number D0~D3, respectively corresponds four keys on remote controler, and four keys are unlocking key respectively, shut key, mute open
Locking key and mute shut key；It is also additional when there is any key-press input to generate Transistor-Transistor Logic level signal VT all the way, and in the form of a pulse
Output, that is, click key and just export a pulse signal；
B, the Transistor-Transistor Logic level signal exported after RFID decoder decoding reaches logic judgment electricity by key-press input detection circuit
Road, logic judging circuit control muting control circuit and buzzer warning electricity according to the different function of Transistor-Transistor Logic level signal respectively
Road, electric lock ON-OFF control circuit；
C, electric lock ON-OFF control circuit is closed loop circuit, when user uses RFID remote controler, sending RFID signal control electricity
When lock is on or off state, electric lock can feed back oneself state and give electric lock state feedback sense circuit, electric lock state feedback detection electricity
Road judges electric lock equipment with the presence or absence of failure, if to need again by signal return to muting control circuit and buzzer alarm circuit
Generate alarm；
D, the overpressure alarm information that logic judging circuit acquisition battery condition detection circuit transmits, cuts off electric lock in time
Power supply prevents from damaging, while buzzer alarm circuit can generate alarm sound under non-mute state.
Compared with prior art, the invention has the following advantages:
1, the present invention is to standby battery electricity real-time detection, intelligent alarm when voltage is low and when superpressure.
2, the present invention keeps equipment to be in normally closed and shuts state when in circuit design using after powering on without operation, and benefit is
When perhaps instantaneous voltage is unstable after equipment service restoration is normal or enabling battery backup power source is powered for equipment accident power-off
Still it is able to maintain vehicle door lock state.
3, power input of the invention uses isolated power supply module, and output end carries out Phototube Coupling using optocoupler, plays
Insulation blocking effect, the main control circuit for making the 5V from isolated power supply module output end to optocoupler input power is not by extraneous ring
Border interference effect.
4, logic judging circuit of the invention, electric lock state feedback sense circuit and electric lock ON-OFF control circuit are all made of double
Circuit redundancy protecting circuit, a route damage not will lead to control failure.
5, the present invention has buzzer warning prompting when failing to electric lock switch state real-time detection, any circuit control, side
Just fault inquiry and maintenance.
6, the present invention is suitable for the intelligent electric-controlled device of economical RFID that railway systems large area uses, and can cooperate common electric
Door lock uses, and while not interfering RFID radiofrequency signal, has high safety and reliability.
Detailed description of the invention
Fig. 1 is overall work schematic diagram of the invention.
Fig. 2 is main electricity circuit diagram.
Fig. 3 is battery condition detection circuit diagram.
Fig. 4 is key-press input detection circuit schematic diagram.
Fig. 5 is 1 schematic diagram of logic judging circuit.
Fig. 6 is 2 schematic diagram of logic judging circuit.
Fig. 7 is electric lock state feedback sense circuit schematic diagram.
Fig. 8 is muting control circuit and buzzer alarm circuit schematic diagram.
Fig. 9 is electric lock ON-OFF control circuit schematic diagram.
Specific embodiment
Particular content of the invention is described in detail with reference to the accompanying drawing.
It is overall work principle of the invention as shown in Figure 1, power supply of the invention is by main electricity and standby battery
Power supply composition, using 220V alternating current, spare 12V battery power supply to the device is used when having a power failure when power grid is normal.When with
When HCS301 rolling code chip is that the hand-held remote controller (four keys) of core sends RFID signal to intelligent electric-controlled device, in device
RFID decoder TDH6301 chip RFID signal is converted into four road Transistor-Transistor Logic level signals (D0~D3), respectively correspond remote controler
On four keys, it is in addition also additional when there is any key-press input to generate Transistor-Transistor Logic level signal (VT) all the way, and with the shape of pulse
Formula exports (click key and just export a pulse signal), and the Transistor-Transistor Logic level signal exported after RFID decoder decoding passes through
Key-press input detection circuit reaches logic judging circuit, and logic judging circuit is according to (totally four kinds of different function of Transistor-Transistor Logic level signal
Function is to unlock respectively, shuts, mute unlocking is mute to shut), control respectively muting control circuit and buzzer alarm circuit,
Electric lock ON-OFF control circuit；Electric lock switch control is closed loop circuit, and when signal control electric lock is on or off state, electric lock can be fed back
Oneself state gives electric lock state feedback sense circuit, and electric lock state feedback sense circuit is again by signal return to muting control circuit
And buzzer alarm circuit, judge equipment with the presence or absence of failure, if to need to generate alarm.In addition, logic judging circuit also needs
The overpressure alarm information that battery condition detection circuit transmits is acquired, the power supply for cutting off electric lock in time prevents from damaging, while bee
Ring device warning circuit can generate alarm sound under non-mute state.
As shown in Fig. 2, being main electricity circuit operation principle, 220V exchange turns 12V DC use in circuit
HA12N20-2539 power module, 12V turn 5V using VRB1205LD-15WR2 power module, this two kinds of power modules be all every
From Voltage stabilizing module, guarantee that power supply is not influenced by external interference impact.The RELAY1 component of figure lower section is a normally closed relay
Device, when having 220V exchange normal power supply and inputting HA12N20-2539 power module, power module exports 12V DC (in figure
Indicated with A12V), while normally closed relay disconnection is controlled, so that B12V is indicated storage battery power supply electricity from being output to 12V, B12V
Pressure；When 220V, which is exchanged, stops power supply, power module stops output A12V, does not control the actuating of relay, and relay is kept at this time
Normally off, makes B12V access 12V, and battery is equipment power supply.
As shown in figure 3, be battery condition detection circuit operation principle, when battery voltage is lower than 11V, figure top
D1 zener diode IN4741 is not turned on, and optocoupler PC1 is not exported, and D2 is that LED green light does not work, and indicates electricity shortage；Work as battery
When voltage is higher than 11V, D1 conducting, optocoupler PC1 is exported, and D2 is always on, and indicates powered stable.When battery voltage is higher than 15V, figure
The D6 zener diode IN4744 of lower part is connected, optocoupler PC2 output, and D8 is that LED red light is lit, while exporting overpressure alarm letter
Number ALARM1.
It as Figure 4-Figure 6, is key-press input detection circuit and logic judging circuit working principle, on the P2 socket of Fig. 4
D0~D3 and VT signal all are from RFID decoder TDH6301 chip, and wherein D0~D3 is exported with interlock mode, tetra- tunnel Ji Ci
Signal locks mutually, when key corresponding on RFID remote controler is pressed, can only have a kind of signal to export in the same time
For high level.When re-powering after RFID decoder TDH6301 chip accident power-off, four road signal initial values are low electricity
It is flat.Four road signals respectively indicate, and D0 is to unlock, and D1 is to shut, and D2 is mute unlocking, and D3 is mute shuts；In addition, VT signal table
Show key pulse signal, often click key, exports a pulse.What Fig. 5 and logic judging circuit shown in fig. 6 were mainly realized
Function has:
1. re-power after power supply accident power-off or instant cut-off, output is kept to shut signal.Specific implementation
For, it is low level when D0~D3 signal powers on initial value, by 74HC14 phase inverter, becomes high level, it is rear to pass through again
74HC08 and door chip export A01 and A02 two-way high level signal, this initially shuts signal for two-way redundancy.
2. shutting control signal output function.Specific implementation is, when D1 or D3, which shuts signal, to be manually pressed,
Control signal B01 and B02 are shut by the anti-phase output isolation twice of 74HC14 phase inverter, then B01 and A01 input
74HC4075 or door chip, generate it is final shut control signal output STMOUT01 signal, another way redundant circuit similarly,
B02 and A02 input 74HC4075 or door chip generate the final control signal that shuts and export STMOUT02 signal.
3. control signal output function of unlocking.Specific implementation is, when D0 D2 unlocking signal is manually pressed,
Unlocking by 74HC14 anti-phase output isolation twice controls signal STMOUT03INT and STMOUT04INT, then
STMOUT03INT and battery overpressure alarm signal ALARM1 input 74HC4075 or door chip generate final unlocking control
Signal export STMOUT03 signal, another way redundant circuit similarly, STMOUT04INT and battery overpressure alarm signal ALARM1
74HC4075 or door chip are inputted, final unlocking control signal output STMOUT04 signal is generated.
4. button prompting sound signal output function.Specific implementation is, when any one of D0~D3 signal is pressed manually
When lower, with output VT pulse signal, VT signal by 74HC14, be isolated twice by anti-phase output, generates final prompt sound signal
It exports to muting control circuit and buzzer alarm circuit.
As shown in fig. 7, be electric lock state feedback sense circuit working principle, when electric lock, which is in, shuts working condition, meeting
It generates two kinds of feedback signals (earth signal that normally opened and normally closed common end is 12V), opened point closure and normally closed point disconnect.When next
From logic judging circuit shut control signal STMOUT01 be high level when, if electric lock can normally be shut, opened point is closed
Measure loop optocoupler U11 is connected in conjunction, the 10 foot low levels of U4 (74HC08 and door), then ALARM3 is low level, i.e., does not generate
Alarm, does not shut if electric lock is faulty, and ALARM3 is high level, generates alarm；When shutting from logic judging circuit
When control signal STMOUT01 is high level, if electric lock can normally be shut, normally closed point, which disconnects, makes measure loop optocoupler U12 not
Conducting, the 13 foot low levels of U4 (74HC08 and door), then ALARM4 is low level, i.e., alarm is not generated, if electric lock is faulty
It does not shut, then ALARM4 is high level, generates alarm.Tri- kinds of alarm signals of ALARM1, ALARM3 and ALARM4 and key mention
Show that sound signal ALARM2 inputs 74HC4075 or door chip jointly, generate final buzzer jingle bell output signal ALARMALL,
It is output to muting control circuit and buzzer alarm circuit.
As shown in figure 8, being muting control circuit and buzzer alarm circuit principle, the front end optocoupler PC6 is mute control electricity
Road, only when buzzer jingle bell output signal ALARMALL is the mute unlocking of high level, D2 and D3 is mute shuts as low level (i.e.
The corresponding function button of remote controler is not pressed), in the case that this three conditions meet simultaneously, high electricity is exported with door 74HC08
Flat, the buzzer alarm circuit that control rear end is just connected in optocoupler issues sound, and MK1 is 12V buzzer.
As shown in figure 9, be electric lock ON-OFF control circuit principle, wherein figure left side shut control signal STMOUT01 and
One normally opened relay of STMOUT02 co- controlling, when relay closure, ZU12V signal control electric lock equipment is shut；Figure is right
Side, which is unlocked, controls signal STMOUT03 and STMOUT04 difference one normally closed relay of each control, and two normally closed relays are serially connected in
In the input terminal control loop of normally opened relay, when the disconnection of any one normally closed relay, it can all make the control of normally opened relay
Circuit disconnects, and 1 foot POWER is 0V, to guarantee that normally opened relay output end is off-state, electric lock equipment is in unlocking shape
State.
The present invention is not limited to the present embodiment, any equivalent concepts within the technical scope of the present disclosure or changes
Become, is classified as protection scope of the present invention.
Claims (2)
1. a kind of intelligent electric-controlled device of electric door lock based on RFID, including the inspection of RFID remote controler, RFID decoder, key-press input
Slowdown monitoring circuit, logic judging circuit, electric lock ON-OFF control circuit, muting control circuit, electric lock state feedback sense circuit, buzzer
Warning circuit and battery condition detection circuit；
It is characterized by: the logic judging circuit respectively with the output end of key-press input detection circuit, electric lock switch control
The input terminal of circuit, the input terminal of muting control circuit are connected with the output end of battery condition detection circuit；The key
The input terminal of input detecting circuit receives the output signal of RFID remote controler through RFID decoder；The electric lock state feeds back inspection
The output end of slowdown monitoring circuit is connect with electric lock equipment；Another input terminal of the muting control circuit is fed back through electric lock state to be examined
Slowdown monitoring circuit is connect with electric lock equipment；The output end of the muting control circuit is connect with buzzer alarm circuit；Described
The input terminal of battery condition detection circuit is connect with battery；
Whole device includes main electricity circuit, the main electricity circuit include HA12N20-2539 power module,
VRB1205LD-15WR2 power module and RELAY1 normally closed relay, the HA12N20-2539 power module and
VRB1205LD-15WR2 power module is isolation Voltage stabilizing module；The HA12N20-2539 power module and RELAY1 are normal
Relay is closed to connect with VRB1205LD-15WR2 power module respectively；The HA12N20-2539 power module input terminal with
Municipal power grid connection, the input terminal of the RELAY1 normally closed relay are connect with battery；The HA12N20-2539 electricity
Source module provides 12V power supply for whole system, and it is spare that the RELAY1 normally closed relay output end for whole system provides 12V
Power supply, the VRB1205LD-15WR2 power module provide 5V power supply for whole system；
The RFID remote controler is using HCS301 rolling code chip as the hand-held remote controller of core, and there are four keys for tool, is respectively
Unlocking key shuts key, mute unlocking key and mute shuts key；The RFID decoder includes TDH6301 chip；
The logic judging circuit is double loop logic judging circuit, including circuit 1 and circuit 2, and the circuit 1 is used for
Non-mute mode judges unlocking and shuts state, and state is unlocked and shut to the circuit 2 for judgement under the silent mode；
The electric lock state feedback sense circuit is double loop redundancy protecting circuit, inputs detection electricity all the way for electric lock opened point signal
Road, another way are normally closed signal input testing circuit of electric lock；The electric lock ON-OFF control circuit includes unlocking circuit and pass
Lock circuit, the unlocking circuit are double loop redundancy protecting circuit, and described shuts circuit double loop redundancy protecting circuit, institute
The unlocking circuit stated and to shut circuit mutually indepedent；
D0~D3 and VT signal on the P2 socket of the key-press input detection circuit all are from RFID decoder TDH6301
Chip, wherein D0~D3 is exported with interlock mode, and tetra- road signal of Ji Ci locks mutually, when key corresponding on RFID remote controler
When being pressed, can only have a kind of signal to export in the same time is high level；When RFID decoder TDH6301 chip accident power-off
After when re-powering, four road signal initial values are low level；Four road signals respectively indicate, and D0 is to unlock, and D1 is to shut, and D2 is
Mute unlocking, D3 are mute shut；In addition, VT signal indicates key pulse signal, key is often clicked, a pulse is exported；
The logic judging circuit realizes following functions:
First, when re-powering after power supply accident power-off or instant cut-off, output is kept to shut signal；Specific implementation
For, it is low level when D0~D3 signal powers on initial value, by 74HC14 phase inverter, becomes high level, it is rear to pass through again
74HC08 and door chip export A01 and A02 two-way high level signal, this initially shuts signal for two-way redundancy；
Second, shut control signal output function；Specific implementation is, when D1 or D3, which shuts signal, to be manually pressed,
Control signal B01 and B02 are shut by the anti-phase output isolation twice of 74HC14 phase inverter, then B01 and A01 input
74HC4075 or door chip, generate it is final shut control signal output STMOUT01 signal, another way redundant circuit similarly,
B02 and A02 input 74HC4075 or door chip generate the final control signal that shuts and export STMOUT02 signal；
Third, control signal output function of unlocking；Specific implementation is, when D0 D2 unlocking signal is manually pressed,
Unlocking by 74HC14 anti-phase output isolation twice controls signal STMOUT03INT and STMOUT04INT, then
STMOUT03INT and battery overpressure alarm signal ALARM1 input 74HC4075 or door chip generate final unlocking control
Signal export STMOUT03 signal, another way redundant circuit similarly, STMOUT04INT and battery overpressure alarm signal ALARM1
74HC4075 or door chip are inputted, final unlocking control signal output STMOUT04 signal is generated；
4th, button prompting sound signal output function；Specific implementation is, when any one of D0~D3 signal is manually pressed
When, with output VT pulse signal, VT signal by 74HC14, be isolated twice by anti-phase output, and it is defeated to generate final prompt sound signal
Out to muting control circuit and buzzer alarm circuit；
The working method of the electric lock state feedback sense circuit work is as follows: when electric lock, which is in, shuts working condition, meeting
Generate two kinds of feedback signals, the earth signal that i.e. normally opened and normally closed common end is 12V, opened point closure and normally closed point disconnect；When
From logic judging circuit shutting control signal STMOUT01 be high level when, if electric lock is normally shut, opened point closure
Measure loop optocoupler U11 is connected, the 10 foot low levels of 74HC08 and door chip U4, then ALARM3 is low level, i.e., does not generate
Alarm, does not shut if electric lock is faulty, and ALARM3 is high level, generates alarm；When shutting from logic judging circuit
When control signal STMOUT01 is high level, if electric lock is normally shut, normally closed point, which disconnects, leads measure loop optocoupler U12 not
Logical, the 13 foot low levels of 74HC08 and door chip U4, then ALARM4 is low level, i.e., alarm is not generated, if electric lock is faulty
It does not shut, then ALARM4 is high level, generates alarm；Tri- kinds of alarm signals of ALARM1, ALARM3 and ALARM4 and key mention
Show that sound signal ALARM2 inputs 74HC4075 or door chip jointly, generate final buzzer jingle bell output signal ALARMALL,
It is output to muting control circuit and buzzer alarm circuit.
2. a kind of working method of the intelligent electric-controlled device of electric door lock based on RFID, it is characterised in that: the following steps are included:
A, when RFID remote controler sends RFID signal, RFID signal is converted to four road Transistor-Transistor Logic level signal D0 by RFID decoder
~D3, respectively corresponds four keys on remote controler, and four keys are unlocking key respectively, shut key, mute unlocking key
Key is shut with mute；It is also additional when there is any key-press input to generate Transistor-Transistor Logic level signal VT all the way and defeated in the form of a pulse
Out, that is, it clicks key and just exports a pulse signal；
B, the Transistor-Transistor Logic level signal exported after RFID decoder decoding reaches logic judging circuit by key-press input detection circuit,
Logic judging circuit controls muting control circuit and buzzer alarm circuit, electricity according to the different function of Transistor-Transistor Logic level signal respectively
Lock-switch control circuit；
C, electric lock ON-OFF control circuit is closed loop circuit, and when user uses RFID remote controler, issuing RFID signal control electric lock is
When on or off state, electric lock can feed back oneself state and give electric lock state feedback sense circuit, and electric lock state feedback sense circuit is again
By signal return to muting control circuit and buzzer alarm circuit, judge electric lock equipment with the presence or absence of failure, if to need to produce
Raw alarm；
D, the overpressure alarm information that logic judging circuit acquisition battery condition detection circuit transmits, cuts off the power supply of electric lock in time
It prevents from damaging, while buzzer alarm circuit can generate alarm sound under non-mute state.
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| CN201710112442.9A CN107067507B (en) | 2017-02-28 | 2017-02-28 | A kind of intelligent electric-controlled device of electric door lock based on RFID and its working method |
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| CN201710112442.9A CN107067507B (en) | 2017-02-28 | 2017-02-28 | A kind of intelligent electric-controlled device of electric door lock based on RFID and its working method |
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| CN108316777B (en) * | 2018-04-04 | 2023-07-25 | 四川长风致远科技有限公司 | Method and device for stably falling lock of electronic coded lock in low electric quantity |
| CN108898706A (en) * | 2018-06-15 | 2018-11-27 | 南通睿祺智能科技有限公司 | A kind of method of controlling switch of lockset, device, storage medium and lockset |
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