CN107784719A - A kind of wireless access control system with power line carrier circuit - Google Patents
A kind of wireless access control system with power line carrier circuit Download PDFInfo
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- CN107784719A CN107784719A CN201610791613.0A CN201610791613A CN107784719A CN 107784719 A CN107784719 A CN 107784719A CN 201610791613 A CN201610791613 A CN 201610791613A CN 107784719 A CN107784719 A CN 107784719A
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- 230000005764 inhibitory process Effects 0.000 claims abstract description 45
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- 238000000034 method Methods 0.000 abstract description 8
- 238000004804 winding Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 11
- 230000006870 function Effects 0.000 description 9
- 230000006698 induction Effects 0.000 description 6
- 208000033999 Device damage Diseases 0.000 description 4
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- 238000010586 diagram Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
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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
- G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
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Abstract
The invention belongs to gate control system field,A kind of more particularly to wireless access control system with power line carrier circuit,The carrier wave transtation mission circuit is used to send data carrier signal to gate inhibition's current supply circuit of power circuit output,The carrier wave parser circuitry is used to receive the data carrier signal on gate inhibition's current supply circuit of power circuit output,It is complicated in the presence of nine line output connections that the present invention solves prior art,Easily cause equipment short circuit,Also front end signal line can unlock over the ground,The problem of swiping card equipment performs practically no function,It is changed into the saving connection circuitry of four-wire system with nine line systems,Power Carrier solves unit and swipes the card that short-circuit device easily opens the door phenomenon gate inhibition outdoors,Realize safety door prohibition system,Reduce disunity inductance value and the advantageous effects of environmental protection in coil-winding process,Simultaneously based under same design concept,Further relate to a kind of carrier wave transtation mission circuit of power line carrier circuit and a kind of carrier wave parser circuitry of power line carrier circuit.
Description
Technical field
The invention belongs to gate control system field, more particularly to a kind of wireless access control system with power line carrier circuit.
Background technology
At present, as a shown in Figure 6, gate inhibition's POS is a part for gate control system, and whole system includes：The POS, press
Button switch, door lock, power transformer, gate inhibition's POS general principle are：When radio-frequency card is close to the POS, frequency read/write to
IC-card sends out the electromagnetic wave of one group of fixed frequency, has in card an IC series connection association to shake circuit, its frequency and the frequency of read write line transmitting
Rate is identical, and so under excitation of electromagnetic wave, LC assists the circuit that shakes to produce resonance, so that there is electric charge in electric capacity；In this electric charge
The other end, be connected to the electronic pump of an one-way conduction, the electric charge in electric capacity be sent to the storage of another capacitor memory, when being accumulated
Electric charge when reaching certain value, data in card are transmitted into the POS, after the integrated coil on the POS receives signal, passed through
Signal enhanced processing sends main control chip to, and rear end equipment, Power Carrier principle are sent to by carrier circuit after processing：Electricity
It is regular on the line of source to go to disturb power supply, then amplify the signal of disturbance by operational amplifier again, then pass through comparator again
The disturbed burst length is obtained, then again by single-chip microcomputer readout time, to determine data, prior art has preceding terminated line
Complexity, at present gate inhibition generally exported using 9 line systems, during actual installation, wiring is excessively complicated, can increase the difficulty of wiring,
Equipment short circuit is easily caused in operating process, because wiring error causes device damage, also prior art front end signal line pair
Ground can unlock, and so as to allow swiping card equipment to perform practically no function, even if without card, open front console, can be beaten by simple mode
Door lock, installation door lock increase potential safety hazard, external coil on the contrary, and coil is bright dress leakage, influences overall appearance, passes through biography
The coiling of system, inductance value change differ, induction sensitivity cause not of uniform size, because coil line footpath is too thin, in installation operation
During be easily damaged problem.
The content of the invention
The present invention provides a kind of wireless access control system with power line carrier circuit, existing in above-mentioned background technology to solve
Complicated with the presence of the preceding terminated line of technology, gate inhibition is generally exported using 9 line systems at present, and during actual installation, wiring is excessively complicated,
The difficulty of wiring can be increased, equipment short circuit is easily caused in operating process, it is also existing because wiring error causes device damage
Technology front end signal line can unlock over the ground, so as to allow swiping card equipment to perform practically no function, even if without card, open front console, pass through
Simple mode can open door lock, and installation door lock increases potential safety hazard, external coil on the contrary, and coil is bright dress leakage, shadow
Overall appearance is rung, by traditional coiling, inductance value change differs, induction sensitivity cause not of uniform size, due to coil line
Footpath is too thin, and problem is easily damaged during installation operation.
Technical problem solved by the invention is realized using following technical scheme：The present invention, which provides one kind, has power line
The wireless access control system of carrier circuit, including power circuit, it is characterised in that the gate control system also includes carrier wave transtation mission circuit
With carrier wave parser circuitry；
The carrier wave transtation mission circuit is used to send data carrier signal to gate inhibition's current supply circuit of power circuit output；
The carrier wave parser circuitry is used to receive the data carrier signal on gate inhibition's current supply circuit of power circuit output.
Further, current-limiting resistance (R0) of the gate inhibition's power output end positive pole of the power circuit through a concatenation is connected to door
Prohibit current supply circuit.
Further, the output head anode of the power circuit is connected to current-limiting resistance (R0) one end, the current-limiting resistance
(R0) the other end is connected to the power end of carrier wave transtation mission circuit and the power end of carrier wave parser circuitry, and the power circuit connects
Ground terminal is connected to carrier wave transtation mission circuit and the earth terminal of carrier wave parser circuitry.
Further, the carrier wave transtation mission circuit includes transistor drive circuit, and the transistor drive circuit includes resistance
(R101~R102), diode (D101), triode (Q101)；
The data carrier signal output end (P1) is output in one end of resistance (R102) and the base stage of triode (Q101),
The digital power end of another termination power circuit of the resistance (R102), the emitter stage of the triode (Q101) are connected to electricity
The one end of (R101) is hindered, the other end of the resistance (R101) is connected to diode (D101) positive pole, the diode
(D101) negative pole is connected to current-limiting resistance (R0) one end, and it is defeated that the other end of the current-limiting resistance (R0) is connected to gate inhibition's power supply
Go out proper pole, the grounded collector of the triode (Q101).
Further, the carrier wave parser circuitry includes low-pass filter circuit, protection circuit, amplifying circuit, comparison circuit, institute
One end that gate inhibition's power output end positive pole is output in resistance (R0) is stated, the other end of the resistance (R0) is output in LPF electricity
The input on road, the output end of the low-pass filter circuit are connected to the input including circuit, the output of the protection circuit
End is connected to the input of amplifying circuit, and the output end of the amplifying circuit is connected to the input of comparison circuit, the ratio
Output end compared with circuit is connected to data carrier signal output end (P2).
Further, the low pass filter circuit, which includes electric capacity (C202) and resistance (R202), the protection circuit, includes
Diode (D201~D202), 100 times of amplifying circuits include amplifier (T201) and resistance (R203~R204), the comparison
Circuitous resistance (R205~R211), comparator (T202), electric capacity (C204~C205)；
Gate inhibition's power output end positive pole is output in resistance (R0) one end, and the other end of the resistance (R0) is output in
One end of resistance (R201), the other end of the resistance (R201) are output in one end and the capacitance of filter capacitor (C201)
(C206) one end, the other end ground connection of the filter capacitor (C201), the other end of the capacitance (C206) are output in
One end of resistance (R202), the negative pole of diode (D201), the positive pole of diode (D202), the forward bias of amplifier (T201) are defeated
Enter end, the other end ground connection of the resistance (R202), the plus earth of the diode (D201), the negative pole of diode (D202)
Ground connection, the negatively biasing input of the amplifier (T201) are connected to one end of resistance (R203) and one end of resistance (R204),
The other end ground connection of the resistance (R203), the output end of the amplifier (T201) be output in resistance (R204) the other end and every
One end of straight electric capacity (C203), the other end of the capacitance (C203) are output in resistance (R205) one end, the resistance
(R205) the other end is output in resistance (R206), the positive input terminal of comparator (T202), one end of resistance (R209), the electricity
The one end of (R210), the other end ground connection of the resistance (R209) are hindered, the other end of the resistance (R206) is connected to resistance
(R207) one end, one end of resistance (R208), one end of electric capacity (C204), the positive pole of electric capacity (C205), comparator (T202)
Negative input end, the resistance (R207) the other end ground connection, the digital power of another termination power circuit of resistance (R208)
End, one end ground connection of the electric capacity (C204), the negative pole ground connection of the electric capacity (C205), the output end of the comparator (T202)
Resistance (R210) other end, one end of resistance (R211), data carrier signal output end (P2) are output in, resistance (R211)
The other end is grounded.
Further, the resistance of the current-limiting resistance (R0) is 22 ohm.
Further, the gate control system also includes radiofrequency signal reading circuit, and the radiofrequency signal reading circuit includes one
Individual radio-frequency antenna, the radio-frequency antenna around along printed board edge ring around being printed on printed board.
A kind of power line carrier circuit, it is characterised in that including carrier wave transtation mission circuit, the carrier wave transtation mission circuit is used for will
Data carrier signal is sent to gate inhibition's current supply circuit of power circuit output；
The carrier wave transtation mission circuit includes transistor drive circuit, the transistor drive circuit include resistance (R101~
R102), diode (D101), triode (Q101)；
The data carrier signal output end (P1) is output in one end of resistance (R102) and the base stage of triode (Q101),
The digital power end of another termination power circuit of the resistance (R102), the emitter stage of the triode (Q101) are connected to electricity
The one end of (R101) is hindered, the other end of the resistance (R101) is connected to diode (D101) positive pole, the diode
(D101) negative pole is connected to current-limiting resistance (R0) one end, and it is defeated that the other end of the current-limiting resistance (R0) is connected to gate inhibition's power supply
Go out proper pole, the grounded collector of the triode (Q101).
A kind of power line carrier circuit, it is characterised in that including carrier wave parser circuitry, the carrier wave parser circuitry is used to connect
Receive the data carrier signal on gate inhibition's current supply circuit of power circuit output；
The carrier wave parser circuitry includes low-pass filter circuit, protection circuit, amplifying circuit, comparison circuit, the low pass
The filter circuit includes electric capacity (C202) and resistance (R202), and the protection circuit includes diode (D201~D202), described
100 times of amplifying circuits include amplifier (T201) and resistance (R203~R204), the comparison circuit resistance (R205~R211), ratio
Compared with device (T202), electric capacity (C204~C205)；
Gate inhibition's power output end positive pole is output in resistance (R0) one end, and the other end of the resistance (R0) is output in
One end of resistance (R201), the other end of the resistance (R201) are output in one end and the capacitance of filter capacitor (C201)
(C206) one end, the other end ground connection of the filter capacitor (C201), the other end of the capacitance (C206) are output in
One end of resistance (R202), the negative pole of diode (D201), the positive pole of diode (D202), the forward bias of amplifier (T201) are defeated
Enter end, the other end ground connection of the resistance (R202), the plus earth of the diode (D201), the negative pole of diode (D202)
Ground connection, the negatively biasing input of the amplifier (T201) are connected to one end of resistance (R203) and one end of resistance (R204),
The other end ground connection of the resistance (R203), the output end of the amplifier (T201) be output in resistance (R204) the other end and every
One end of straight electric capacity (C203), the other end of the capacitance (C203) are output in resistance (R205) one end, the resistance
(R205) the other end is output in resistance (R206), the positive input terminal of comparator (T202), one end of resistance (R209), the electricity
The one end of (R210), the other end ground connection of the resistance (R209) are hindered, the other end of the resistance (R206) is connected to resistance
(R207) one end, one end of resistance (R208), one end of electric capacity (C204), the positive pole of electric capacity (C205), comparator (T202)
Negative input end, the resistance (R207) the other end ground connection, the digital power of another termination power circuit of resistance (R208)
End, one end ground connection of the electric capacity (C204), the negative pole ground connection of the electric capacity (C205), the output end of the comparator (T202)
Resistance (R210) other end, one end of resistance (R211), data carrier signal output end (P2) are output in, resistance (R211)
The other end is grounded.
Beneficial effects of the present invention are：
1st, Power Carrier of the present invention is more stable by equipment, and envelop of function is wider, greatlys save connection circuitry so that existing 9
Line binding post is changed into 4 line binding posts, and Power Carrier solves unit and swipes the card that short-circuit device easily opens the door phenomenon gate inhibition outdoors so that really
Safety door prohibition system in meaning.
2nd, induction coil of swiping the card is integrated on pcb board, reduces disunity inductance value in coil-winding process, prior
It is to greatly reduce the cost of raw material, it is more environmentally friendly.
Brief description of the drawings
Fig. 1 is a kind of system module figure of the wireless access control system with power line carrier circuit of the present invention；
Fig. 2 is a kind of module map of the power line carrier circuit with power line carrier circuit of the present invention；
Fig. 3 is a kind of module map of power line carrier circuit and power circuit with power line carrier circuit of the present invention；
Fig. 4 is a kind of electrical schematic diagram of the carrier wave transtation mission circuit with power line carrier circuit of the present invention；
Fig. 5 is a kind of electrical schematic diagram of the carrier wave parser circuitry with power line carrier circuit of the present invention；
Fig. 6 is a kind of systems function diagram with power line carrier circuit of the present invention；
Fig. 7 is a kind of antenna structure view of the radiofrequency signal reading circuit with power line carrier circuit of the present invention.
Embodiment
The present invention is described further below in conjunction with accompanying drawing：
In figure：1- power circuits, 2- carrier wave transtation mission circuits, 3- carrier wave parser circuitries, 4- low-pass filter circuits, 5- protection electricity
Road, 6- amplifying circuits, 7- comparison circuits, 8- radiofrequency signal reading circuits, 9- antennas, R0- current-limiting resistances, R101~R102- electricity
Resistance, D101- diodes, Q101- triodes, P1- data carrier signal output ends, C202- electric capacity, R202- resistance, D201~
D202- diodes, T201- amplifiers, R203~R204- resistance, R205~R211- resistance, T202- comparators, C204~C205-
Electric capacity.
Embodiment：
The present embodiment includes：As shown in Fig. 2 a kind of wireless access control system with power line carrier circuit, including power supply
Circuit 1, the gate control system also include carrier wave transtation mission circuit 2 and carrier wave parser circuitry 3；
The carrier wave transtation mission circuit 2 is used to sending data carrier signal into the gate inhibition's current supply circuit exported to power circuit 1；
The carrier wave parser circuitry 3 is used to receive the data carrier signal on gate inhibition's current supply circuit of the output of power circuit 1.
As shown in figure 3, current-limiting resistance R0 of the gate inhibition's power output end positive pole of the power circuit 1 through a concatenation is connected to
Gate inhibition's current supply circuit.
The output head anode of the power circuit 1 is connected to current-limiting resistance R0 one end, and the current-limiting resistance R0's is another
End is connected to the power end of carrier wave transtation mission circuit 2 and the power end of carrier wave parser circuitry 3, and the earth terminal of the power circuit 1 connects
It is connected to carrier wave transtation mission circuit 2 and the earth terminal of carrier wave parser circuitry 3.
As shown in figure 4, the carrier wave transtation mission circuit 2 includes transistor drive circuit, the transistor drive circuit includes
Resistance R101~R102, diode D101, triode Q101；
The data carrier signal output end P1 is output in resistance R102 one end and triode Q101 base stage, the electricity
The digital power end of R102 another termination power circuit 1 is hindered, the emitter stage of the triode Q101 is connected to resistance R101's
One end, the other end of the resistance R101 are connected to diode D101 positive pole, and the negative pole of the diode D101 is connected to limit
Leakage resistance R0 one end, the other end of the current-limiting resistance R0 are connected to gate inhibition's power output end positive pole, the triode Q101
Grounded collector.
The pulse of different time is exported to triode Q101 ground level by timer inside single-chip microcomputer, when high impulse
Wait Q101 conductings and produce electric current, this current signal is coupled on+12V power lines by R101, when pulse is low level
Q101 stops conducting, and moment has a cut-off current signal and is coupled to by R101 on+12V power lines, as long as so passing through
Switch Q101 and produce the electric current just faint disturbing signal of the right+12V supply voltages generation of energy, be exactly Q101 ground levels after this signals revivification
Input signal+12V be power input, any power output not less than 5W voltages+12V power supply can, R0 be carrier wave hair
The current-limiting resistance of module and carrier wave parsing module is sent, D101 is the insurance for preventing the positive and negative level of power supply reversed, and C101, C103 are filtering
Electric capacity, C102 are that+5V exports storage capacitor, and T1 is the three terminal regulator of+5V outputs, and Q101 is the switch triode of NPN type,
R102 is that pull-up resistor is the sufficiently conductive offer energy of triode, and R101 is that current-limiting resistance is also signal coupling resistance simultaneously.
As shown in figure 5, the carrier wave parser circuitry 3 includes low-pass filter circuit 4, protection circuit 5, amplifying circuit 6, compared
Circuit 7, gate inhibition's power output end positive pole are output in resistance R0 one end, the low pass that the other end of the resistance R0 is output in
The input of filter circuit 4, the output end of the low-pass filter circuit 4 are connected to the input including circuit, the protection circuit 5
Output end be connected to the input of amplifying circuit 6, the output end of the amplifying circuit 6 is connected to the input of comparison circuit 7
End, the output end of the comparison circuit 7 are connected to data carrier signal output end P2.
Include as shown in figure 5, the low pass filter circuit includes electric capacity C202 and resistance R202, the protection circuit 5
Diode D201~D202,100 times of amplifying circuits 6 include amplifier T201 and resistance R203~R204, the comparison circuit 7
Resistance R205~R211, comparator T202, electric capacity C204~C205；
Gate inhibition's power output end positive pole is output in resistance R0 one end, and the other end of the resistance R0 is output in resistance
R201 one end, the other end of the resistance R201 are output in filter capacitor C201 one end and capacitance C206 one end,
The other end ground connection of the filter capacitor C201, the other end of the capacitance C206 are output in resistance R202 one end, two
Pole pipe D201 negative pole, diode D202 positive pole, amplifier T201 forward bias input, the other end of the resistance R202
Ground connection, the plus earth of the diode D201, diode D202 negative pole ground connection, the negatively biasing input of the amplifier T201
End is connected to resistance R203 one end and resistance R204 one end, the other end ground connection of the resistance R203, the amplifier T201
Output end be output in the resistance R204 other end and capacitance C203 one end, the other end of the capacitance C203 is defeated
For resistance R205 one end, the other end of the resistance R205 is output in resistance R206, comparator T202 positive input terminal, electricity
Hinder R209 one end, one end of the resistance R210, the other end ground connection of the resistance R209, the other end of the resistance R206
It is connected to resistance R207 one end, resistance R208 one end, electric capacity C204 one end, electric capacity C205 positive pole, comparator T202
Negative input end, the resistance R207 the other end ground connection, the digital power end of resistance R208 another termination power circuit 1,
One end ground connection of the electric capacity C204, the negative pole ground connection of the electric capacity C205, the output end of the comparator T202 are output in electricity
Hinder the R210 other end, resistance R211 one end, data carrier signal output end P2, resistance R211 other end ground connection.
R0 is the current-limiting resistance of carrier wave sending module and carrier wave parsing module, R201 input current resistance, C201 (2.2nf)
Filter capacitor, C206 are ac coupling capacitor, and C202, R202 form a low pass filter, and D201, D202 are two poles of protection
Pipe, T201 (LM358-U1B) are 100 times of amplifier, and faint supply voltage disturbing signal is amplified, and C203 is exchange
Signal coupled capacitor, T201 (LM358-U1A) are that comparator R207, R208, C204, C205 provide stabilization to the pin of comparator the 2nd
DC offset voltage, R206, R209 to the 3rd pin provide one be less than 2 pin quiescent voltage, when amplifier have exchange input
When output will proportional amplification signal by C203, R205 is added to the 3rd pin of comparator, and comparator can be according to 3 pin
The size of voltage is compared with 2 pin, and so as to export the pulse of height, this pulse signal is exactly the pulse letter of carrier wave sending module
Number, R209, R210 form a positive-feedback circuit, there is larger return difference trigging signal (i.e. 0 when comparator 0 and 1 is overturn
It is equal to VCC equal to ground, 1).
The resistance of the current-limiting resistance R0 is 22 ohm.
Power Carrier of the present invention is more stable by equipment, and envelop of function is wider, greatlys save connection circuitry so that existing 9 line
Binding post is changed into 4 line binding posts, and Power Carrier solves unit and swipes the card that short-circuit device easily opens the door phenomenon gate inhibition outdoors so that really meaning
Safety door prohibition system in justice.
It is complicated to solve preceding terminated line simultaneously, gate inhibition is generally exported using 9 line systems at present, during actual installation, wiring
It is excessively complicated, the difficulty of wiring can be increased, equipment short circuit is easily caused in operating process, because wiring error causes device damage
Problem.
As shown in fig. 7, the gate control system also includes radiofrequency signal reading circuit 8, the radiofrequency signal reading circuit 8 wraps
Include a radio-frequency antenna 9, the radio-frequency antenna 9 around along printed board edge ring around being printed on printed board.
Induction coil of swiping the card is integrated on pcb board, reduces disunity inductance value in coil-winding process, it is often more important that
The cost of raw material is greatly reduced, it is more environmentally friendly.
Solving front end signal line simultaneously can unlock over the ground, so as to allow swiping card equipment to perform practically no function, even if without card, open
Front console, door lock can be opened by simple mode, installation door lock increases potential safety hazard on the contrary.
A kind of as shown in figure 4, power line carrier circuit, it is characterised in that including carrier wave transtation mission circuit 2, the carrier wave hair
Power transmission road 2 is used to sending data carrier signal into the gate inhibition's current supply circuit exported to power circuit 1；
The carrier wave transtation mission circuit 2 includes transistor drive circuit, the transistor drive circuit include resistance R101~
R102, diode D101, triode Q101；
The data carrier signal output end P1 is output in resistance R102 one end and triode Q101 base stage, the electricity
The digital power end of R102 another termination power circuit 1 is hindered, the emitter stage of the triode Q101 is connected to resistance R101's
One end, the other end of the resistance R101 are connected to diode D101 positive pole, and the negative pole of the diode D101 is connected to limit
Leakage resistance R0 one end, the other end of the current-limiting resistance R0 are connected to gate inhibition's power output end positive pole, the triode Q101
Grounded collector.
A kind of as shown in figure 5, power line carrier circuit, it is characterised in that including carrier wave parser circuitry 3, the carrier wave solution
Analysis circuit 3 is used to receive the data carrier signal on gate inhibition's current supply circuit of the output of power circuit 1；
The carrier wave parser circuitry 3 includes low-pass filter circuit 4, protection circuit 5, amplifying circuit 6, comparison circuit 7, described
The low pass filter circuit includes electric capacity C202 and resistance R202, and the protection circuit 5 includes diode D201~D202, described
100 times of amplifying circuits 6 include amplifier T201 and resistance R203~R204, the resistance R205~R211 of comparison circuit 7, comparator
T202, electric capacity C204~C205；
Gate inhibition's power output end positive pole is output in resistance R0 one end, and the other end of the resistance R0 is output in resistance
R201 one end, the other end of the resistance R201 are output in filter capacitor C201 one end and capacitance C206 one end,
The other end ground connection of the filter capacitor C201, the other end of the capacitance C206 are output in resistance R202 one end, two
Pole pipe D201 negative pole, diode D202 positive pole, amplifier T201 forward bias input, the other end of the resistance R202
Ground connection, the plus earth of the diode D201, diode D202 negative pole ground connection, the negatively biasing input of the amplifier T201
End is connected to resistance R203 one end and resistance R204 one end, the other end ground connection of the resistance R203, the amplifier T201
Output end be output in the resistance R204 other end and capacitance C203 one end, the other end of the capacitance C203 is defeated
For resistance R205 one end, the other end of the resistance R205 is output in resistance R206, comparator T202 positive input terminal, electricity
Hinder R209 one end, one end of the resistance R210, the other end ground connection of the resistance R209, the other end of the resistance R206
It is connected to resistance R207 one end, resistance R208 one end, electric capacity C204 one end, electric capacity C205 positive pole, comparator T202
Negative input end, the resistance R207 the other end ground connection, the digital power end of resistance R208 another termination power circuit 1,
One end ground connection of the electric capacity C204, the negative pole ground connection of the electric capacity C205, the output end of the comparator T202 are output in electricity
Hinder the R210 other end, resistance R211 one end, data carrier signal output end P2, resistance R211 other end ground connection.
Operation principle：The present invention sends regular time pulse (such as by transmitting terminal by single-chip microcomputer：The low electricity of 100us
Flat+50us high level+100us low levels represent logic 1, and 50us low level+100us high level+50us low levels represent logic
0), then by triode+resistance (end of resistance one is connected to power positive end, one end by triode region switch resistance over the ground), this
Sample, which certainly will have power supply, has faint disturbing signal to be transferred on power line, and receiving terminal is by operational amplifier by faint disturbance
Signal is amplified, and then obtains regular perturbation pulse signal by comparator again, then goes to receive this by single-chip microcomputer
Individual pulse signal, logic 1 and 0 is calculated so as to which can forms the more data of N by program inside single-chip microcomputer, then passes through reception
To data come the function of execution required for judging, say on the whole, the present invention, which solves prior art and preceding terminated line be present, to be answered
Miscellaneous, gate inhibition is generally exported using 9 line systems at present, and during actual installation, wiring is excessively complicated, can increase the difficulty of wiring, behaviour
Equipment short circuit is easily caused during work, because wiring error causes device damage, also prior art front end signal line over the ground
It can unlock, so as to allow swiping card equipment to perform practically no function, even if without card, open front console, can be opened by simple mode
Door lock, installation door lock increase potential safety hazard, external coil on the contrary, and coil is bright dress leakage, influences overall appearance, passes through tradition
Coiling, inductance value change differs, induction sensitivity cause not of uniform size, because coil line footpath is too thin, in installation operation
During be easily damaged problem, have Power Carrier it is more stable by equipment, envelop of function is wider, greatlys save connection circuitry, makes
Existing 9 line binding post is changed into 4 line binding posts, Power Carrier solves unit and swipes the card that short-circuit device easily opens the door phenomenon gate inhibition outdoors,
So that truly safety door prohibition system, induction coil of swiping the card are integrated on pcb board, reduce in coil-winding process and do not unite
One inductance value, it is often more important that greatly reduce the cost of raw material, more environmentally friendly advantageous effects.
The present invention is based under same Design Conception simultaneously, is related to a kind of carrier wave parser circuitry and one of power line carrier circuit
The carrier wave transtation mission circuit of kind power line carrier circuit.
Designed using technical scheme, or those skilled in the art under the inspiration of technical solution of the present invention
Go out similar technical scheme, and reach above-mentioned technique effect, be to fall into protection scope of the present invention.
Claims (10)
1. a kind of wireless access control system with power line carrier circuit, including power circuit, it is characterised in that the gate inhibition system
System also includes carrier wave transtation mission circuit and carrier wave parser circuitry；
The carrier wave transtation mission circuit is used to send data carrier signal to gate inhibition's current supply circuit of power circuit output；
The carrier wave parser circuitry is used to receive the data carrier signal on gate inhibition's current supply circuit of power circuit output.
2. a kind of wireless access control system with power line carrier circuit according to claim 1, it is characterised in that described
Current-limiting resistance (R0) of the gate inhibition's power output end positive pole of power circuit through a concatenation is connected to gate inhibition's current supply circuit.
3. a kind of wireless access control system with power line carrier circuit according to claim 2, it is characterised in that described
The output head anode of power circuit is connected to current-limiting resistance (R0) one end, and the other end of the current-limiting resistance (R0) is connected to load
The power end of ripple transtation mission circuit and the power end of carrier wave parser circuitry, the earth terminal of the power circuit are connected to carrier wave and send electricity
Road and the earth terminal of carrier wave parser circuitry.
4. a kind of wireless access control system with power line carrier circuit according to claim 3, it is characterised in that described
Carrier wave transtation mission circuit includes transistor drive circuit, and the transistor drive circuit includes resistance (R101~R102), diode
(D101), triode (Q101)；
The data carrier signal output end (P1) is output in one end of resistance (R102) and the base stage of triode (Q101), described
The digital power end of another termination power circuit of resistance (R102), the emitter stage of the triode (Q101) are connected to resistance
(R101) one end, the other end of the resistance (R101) are connected to diode (D101) positive pole, the diode (D101)
Negative pole be connected to current-limiting resistance (R0) one end, the other end of the current-limiting resistance (R0) is being connected to gate inhibition's power output end just
Pole, the grounded collector of the triode (Q101).
5. a kind of wireless access control system with power line carrier circuit according to claim 3, it is characterised in that described
Carrier wave parser circuitry includes low-pass filter circuit, protection circuit, amplifying circuit, comparison circuit, and gate inhibition's power output end is just
Pole is output in resistance (R0) one end, and the other end of the resistance (R0) is output in the input of low-pass filter circuit, described low
The output end of bandpass filter circuit is connected to the input including circuit, and the output end of the protection circuit is connected to amplifying circuit
Input, the output end of the amplifying circuit are connected to the input of comparison circuit, the output end connection of the comparison circuit
In data carrier signal output end (P2).
6. a kind of wireless access control system with power line carrier circuit according to claim 5, it is characterised in that described
The low pass filter circuit includes electric capacity (C202) and resistance (R202), and the protection circuit includes diode (D201~D202),
100 times of amplifying circuits include amplifier (T201) and resistance (R203~R204), the comparison circuit resistance (R205~
R211), comparator (T202), electric capacity (C204~C205)；
Gate inhibition's power output end positive pole is output in resistance (R0) one end, and the other end of the resistance (R0) is output in resistance
(R201) one end, the other end of the resistance (R201) are output in one end and the capacitance (C206) of filter capacitor (C201)
One end, the other end ground connection of the filter capacitor (C201), the other end of the capacitance (C206) is output in resistance
(R202) the forward bias input of one end, the negative pole of diode (D201), the positive pole of diode (D202), amplifier (T201)
End, the other end ground connection of the resistance (R202), the plus earth of the diode (D201), the negative pole of diode (D202) connect
Ground, the negatively biasing input of the amplifier (T201) are connected to one end of resistance (R203) and one end of resistance (R204), institute
The other end ground connection of resistance (R203) is stated, the output end of the amplifier (T201) is output in the other end and blocking of resistance (R204)
One end of electric capacity (C203), the other end of the capacitance (C203) are output in resistance (R205) one end, the resistance
(R205) the other end is output in resistance (R206), the positive input terminal of comparator (T202), one end of resistance (R209), the electricity
The one end of (R210), the other end ground connection of the resistance (R209) are hindered, the other end of the resistance (R206) is connected to resistance
(R207) one end, one end of resistance (R208), one end of electric capacity (C204), the positive pole of electric capacity (C205), comparator (T202)
Negative input end, the resistance (R207) the other end ground connection, the digital power of another termination power circuit of resistance (R208)
End, one end ground connection of the electric capacity (C204), the negative pole ground connection of the electric capacity (C205), the output end of the comparator (T202)
Resistance (R210) other end, one end of resistance (R211), data carrier signal output end (P2) are output in, resistance (R211)
The other end is grounded.
7. a kind of wireless access control system with power line carrier circuit according to claim 3, it is characterised in that described
The resistance of current-limiting resistance (R0) is 22 ohm.
8. a kind of wireless access control system with power line carrier circuit according to claim 1, it is characterised in that described
Gate control system also includes radiofrequency signal reading circuit, and the radiofrequency signal reading circuit includes a radio-frequency antenna, the radio frequency
Antenna loop around along printed board edge ring around being printed on printed board.
9. a kind of power line carrier circuit, it is characterised in that including carrier wave transtation mission circuit, the carrier wave transtation mission circuit is used for number
Sent according to carrier signal to gate inhibition's current supply circuit of power circuit output；
The carrier wave transtation mission circuit includes transistor drive circuit, the transistor drive circuit include resistance (R101~
R102), diode (D101), triode (Q101)；
The data carrier signal output end (P1) is output in one end of resistance (R102) and the base stage of triode (Q101), described
The digital power end of another termination power circuit of resistance (R102), the emitter stage of the triode (Q101) are connected to resistance
(R101) one end, the other end of the resistance (R101) are connected to diode (D101) positive pole, the diode (D101)
Negative pole be connected to current-limiting resistance (R0) one end, the other end of the current-limiting resistance (R0) is being connected to gate inhibition's power output end just
Pole, the grounded collector of the triode (Q101).
10. a kind of power line carrier circuit, it is characterised in that including carrier wave parser circuitry, the carrier wave parser circuitry is used to connect
Receive the data carrier signal on gate inhibition's current supply circuit of power circuit output；
The carrier wave parser circuitry includes low-pass filter circuit, protection circuit, amplifying circuit, comparison circuit, the low pass filter
Wave circuit includes electric capacity (C202) and resistance (R202), and the protection circuit includes diode (D201~D202), described 100 times
Amplifying circuit includes amplifier (T201) and resistance (R203~R204), the comparison circuit resistance (R205~R211), comparator
(T202), electric capacity (C204~C205)；
Gate inhibition's power output end positive pole is output in resistance (R0) one end, and the other end of the resistance (R0) is output in resistance
(R201) one end, the other end of the resistance (R201) are output in one end and the capacitance (C206) of filter capacitor (C201)
One end, the other end ground connection of the filter capacitor (C201), the other end of the capacitance (C206) is output in resistance
(R202) the forward bias input of one end, the negative pole of diode (D201), the positive pole of diode (D202), amplifier (T201)
End, the other end ground connection of the resistance (R202), the plus earth of the diode (D201), the negative pole of diode (D202) connect
Ground, the negatively biasing input of the amplifier (T201) are connected to one end of resistance (R203) and one end of resistance (R204), institute
The other end ground connection of resistance (R203) is stated, the output end of the amplifier (T201) is output in the other end and blocking of resistance (R204)
One end of electric capacity (C203), the other end of the capacitance (C203) are output in resistance (R205) one end, the resistance
(R205) the other end is output in resistance (R206), the positive input terminal of comparator (T202), one end of resistance (R209), the electricity
The one end of (R210), the other end ground connection of the resistance (R209) are hindered, the other end of the resistance (R206) is connected to resistance
(R207) one end, one end of resistance (R208), one end of electric capacity (C204), the positive pole of electric capacity (C205), comparator (T202)
Negative input end, the resistance (R207) the other end ground connection, the digital power of another termination power circuit of resistance (R208)
End, one end ground connection of the electric capacity (C204), the negative pole ground connection of the electric capacity (C205), the output end of the comparator (T202)
Resistance (R210) other end, one end of resistance (R211), data carrier signal output end (P2) are output in, resistance (R211)
The other end is grounded.
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| CN201610791613.0A CN107784719B (en) | 2016-08-31 | 2016-08-31 | Wireless access control system with power line carrier circuit |
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| CN201610791613.0A CN107784719B (en) | 2016-08-31 | 2016-08-31 | Wireless access control system with power line carrier circuit |
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| CN107784719B (en) | 2024-04-16 |
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