CN103048942A - Circuit with two-wire system structure of manual button box for electric door - Google Patents
Circuit with two-wire system structure of manual button box for electric door Download PDFInfo
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- CN103048942A CN103048942A CN2012105502039A CN201210550203A CN103048942A CN 103048942 A CN103048942 A CN 103048942A CN 2012105502039 A CN2012105502039 A CN 2012105502039A CN 201210550203 A CN201210550203 A CN 201210550203A CN 103048942 A CN103048942 A CN 103048942A
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- pushbutton switch
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Abstract
The invention discloses a circuit with a two-wire system structure of a manual button box for an electric door, which comprises an indicator light branch circuit and n button switch branch circuits, wherein the n button switch branch circuits are connected in parallel. The circuit is characterized in that the indicator light branch circuit and the n button switch branch circuits are connected in parallel, the indicator light branch circuit is connected with a rectifying circuit in series, an anode of an output end of the rectifying circuit is connected with a voltage stabilizing diode and a light emitting diode in series, a button switch on any branch circuit of the n button switch branch circuits which are connected in parallel is respectively connected with a resistor with different resistance values in series, and n is a natural number. The circuit has the advantage of simplicity in wiring, and only two leads are needed to realize corresponding control functions of a plurality of buttons on the manual button box. When the manual button box is connected to a controller of the electric door, terminal polarities are not distinguished, and the manual button box can be freely connected, so that the possibility of false wiring is fundamentally avoided. Whether an open circuit or a short circuit exists in the circuit or not can be recognized, so as to be convenient for judging faults.
Description
Technical field
The invention belongs to the Electrically operated gate control field.Relate in particular to a kind of circuit with Electrically operated gate hand push button box of two-wire system structure.
Background technology
The hand push button box is widely used in the control of electric rolling door, electric extendable door
,Existing Electrically operated gate hand push button box connects with generally adopting multiple-way system being connected of electric door controller, be that electric door controller links to each other with needing a plurality of leads being connected of hand push button box, specifically: if pushbutton switch quantity is n on the hand push button operating case, then need at least n+1 root lead-in wire to connect, wherein n button followed respectively a lead-in wire, also has a concentric line.This structure wiring is complicated, the easy wrong of circuit during construction, and it is more to take the interface of electric door controller.
Summary of the invention
The object of the present invention is to provide two connecting lines of a kind of need just can realize the circuit of the Electrically operated gate hand push button box with two-wire system structure that electric door controller is connected with the hand push button box, realize the control function of the corresponding Electrically operated gate of each button on the Electrically operated gate hand push button box.And the switch that can realize simultaneously a pilot lamp is controlled.
The object of the present invention is achieved like this, described
A kind of circuit with Electrically operated gate hand push button box of two-wire system structureThe pushbutton switch branch road that comprises a pilot lamp branch road and the parallel connection of n bar, it is characterized in that a described pilot lamp branch road and n bar pushbutton switch branch circuit parallel connection, rectification circuit of serial connection on the described pilot lamp branch road, a positive pole voltage stabilizing diode of series connection and a light emitting diode of rectification circuit output end, pushbutton switch on arbitrary the branch road on the pushbutton switch branch road of described n bar parallel connection is connected in series the resistance that resistance is different separately, and described n is natural number.
Described
A kind of circuit with Electrically operated gate hand push button box of two-wire system structureIts characteristics are that the end behind the branch circuit parallel connection links to each other with the general Purpose IO Interface pin of the MCU of electric door controller by the level translation impulse output circuit, and the other end behind the branch circuit parallel connection links to each other with the A/D translation function pin of the MCU of electric door controller by the aanalogvoltage Acquisition Circuit.
Described
A kind of circuit with Electrically operated gate hand push button box of two-wire system structure, its characteristics are that a end behind the branch circuit parallel connection and the other end behind the branch circuit parallel connection are not distinguished polarity with being connected to of electric door controller and be connected.
Described
A kind of circuit with Electrically operated gate hand push button box of two-wire system structureIts characteristics are that electric door controller comprises MCU, power circuit, electric machine rotation limit switch input circuit, aanalogvoltage Acquisition Circuit and level translation impulse output circuit, and power circuit, electric machine rotation limit switch input circuit, aanalogvoltage Acquisition Circuit and level translation impulse output circuit all are connected with MCU.
Described
A kind of circuit with Electrically operated gate hand push button box of two-wire system structure, its characteristics are that ((N+1)/n-1) calculates the different resistance of resistance, and R is the resistance of sampling resistor in the formula, and n is the sampling resistor sequence number by formula Rn=R*; N≤N, N gets natural number, is the number of pushbutton switch branch road.
Described
A kind of circuit with Electrically operated gate hand push button box of two-wire system structureWhen its characteristics are pressed for the pushbutton switch on any pushbutton switch branch road, then the control signal input end of the corresponding button switching branches and electric door controller is connected, produce a current signal on this pushbutton switch branch road, this current signal is converted to the sampled voltage analog signals by a sampling resistor again, input to the corresponding A/D translation function of the MCU pin of electric door controller, after being the digital quantity signal that can identify of MCU, analog to digital conversion carries out recognition by pressing keys, when the varying voltage signal that collects by sampling resistor, and when obtaining the digital signal of different numerical value, then numerical value default in this digital signal value and the electric door controller software is compared the pushbutton switch that can determine on which bar pushbutton switch branch road and be pressed and carry out corresponding keypress function.
Advantage of the present invention: 1, wiring is simple, only needs two lead-in wires just can realize the control function that a plurality of buttons are corresponding on the hand push button box.Need not distinguish terminals polarity when 2, the hand push button box is connected to electric door controller, can access arbitrarily, fundamentally the possibility of preventing error wiring; 3, can identify this circuit and whether open a way or short circuit, be convenient to fault distinguishing.
Description of drawings
The circuit theory diagrams of Fig. 1 Electrically operated gate hand push button of the present invention box.
Fig. 2 electric door controller schematic block circuit diagram of the present invention.
The schematic diagram of the level translation pulse output of Fig. 3 electric door controller of the present invention and aanalogvoltage Acquisition Circuit part.
Fig. 4 is of the present invention to light a lamp and button trace routine process flow diagram.
Embodiment
As depicted in figs. 1 and 2, the circuit of Electrically operated gate hand push button box of the present invention comprises electric door controller and a pilot lamp branch road, the pushbutton switch branch road of n bar parallel connection, and electric door controller comprises MCU.It is characterized in that a described pilot lamp branch road J0 and n bar pushbutton switch branch circuit parallel connection, end L1 behind the branch circuit parallel connection links to each other with the general Purpose IO Interface pin of the MCU of electric door controller by the level translation impulse output circuit, other end L2 behind the branch circuit parallel connection links to each other with the A/D translation function pin of electric door controller by the aanalogvoltage Acquisition Circuit, end L1 among Fig. 1 behind the branch circuit parallel connection, other end L2 behind the branch circuit parallel connection need not distinguish polarity with being connected of electric door controller, can access arbitrarily.Rectification circuit ZL1 of the upper serial connection of a described pilot lamp branch road J0, a positive pole voltage stabilizing diode D1 of series connection and a light emitting diode D2 of rectification circuit output end, this light emitting diode is pilot lamp, the Jn (n=1 on the pushbutton switch branch road of described n bar parallel connection, 2,3---) the button switch K n on the bar branch road (n=1,2,3---) be connected in series respectively the resistance R n (n=1 of different resistances, 2,3---), n value wherein is natural number, can preferred 3 or 4 be good; The described aanalogvoltage Acquisition Circuit that links to each other with the A/D translation function pin of electric door controller is made of filter capacitor and sampling resistor parallel connection, the level translation impulse output circuit that links to each other with L1 is made of phase inverter, current-limiting resistance and triode, as shown in Figure 3; As shown in Figure 2, power circuit, electric machine rotation limit switch input circuit, aanalogvoltage Acquisition Circuit and level translation impulse output circuit all with the MCU(single-chip microcomputer) be connected, electric machine rotation limit switch input circuit is connected with the MCU of electric door controller, the effect of electric machine rotation limit switch input circuit is the switching value signal that provides Electrically operated gate to arrive the upper and lower limit position to MCU, thereby makes the MCU of electric door controller send the signal that stops the electric door motor rotation to circuit for controlling motor.Power circuit, electric machine rotation limit switch input circuit, aanalogvoltage Acquisition Circuit and level translation impulse output circuit and MCU are prior art.
Principle of work: as shown in Figure 3, IO1 among the figure, IO2 is any general purpose I/O port of the MCU of electric door controller, and by IO1, IO2 sends height, the low level control signal, after the conversion of level translation impulse output circuit, at continuous square voltage pulse signal of functional pin L1 output, the pulsating wave peak value is+12V, the trough value is+5V, to the method for pilot lamp and pushbutton switch employing timesharing control.The specific works process is as follows: the IO1 port output low level signal of the MCU of electric door controller, simultaneously IO2 port output high level signal, the control signal of namely lighting a lamp, the low level signal of IO1 port is through phase inverter Q2, become high level signal behind the current-limiting resistance RL1, triode Q4 cut-off this moment, + 12V voltage is through the after-applied base stage at triode Q3 of biasing resistor RL2, triode Q3 conducting, at L1 end output+12V voltage (wherein resistance R L3 plays metering function), the high level signal of IO2 port output becomes low level behind phase inverter Q1, like this at L1, the voltage drop that has just produced one+12V between the L2 end, software delay number millisecond, then produced the potential pulse square wave of one+12V at L1, Electrically operated gate hand push button box pilot lamp (being light emitting diode D2) conducting and lighting; The IO1 port output high level signal of the MCU of electric door controller, IO2 port output low level signal is and closes the output of LED lamp simultaneously, the control signal of button sense channel A/D is opened in simultaneously output, the high level signal of IO1 port is through phase inverter Q2, become low level signal behind the current-limiting resistance RL1, triode Q4 conducting this moment, + 5.6V voltage is applied to the base stage of triode Q3, the Q3 cut-off, at L1 end output+5V voltage, software delay number millisecond is held the pulse square wave of generation+5V at L1, the low level signal of IO2 port output becomes high level signal behind phase inverter Q1, open button sense channel A/D.The A/D translation function pin of the MCU of electric door controller carries out the button detection and Identification, if have the button switch K n on any switching branches Jn to be pressed this moment, then the control signal input end L2 of respective branch Jn and electric door controller connects, produce a current signal on this branch road, this current signal is converted to the sampled voltage analog signals by sampling resistor RA1 again, through resistance R A2, input to the corresponding A/D translation function of the MCU pin of electric door controller after the RC filtering that capacitor C 1 forms, after analog to digital conversion is the digital quantity signal that can identify of MCU, carry out recognition by pressing keys, identify button after MCU can carry out corresponding keypress function.Because the resistance value on the n bar branch road in parallel is not identical, so the current signal value that produces on each bar branch road is not identical yet, the voltage signal that collects by sampling resistor is not identical yet, and then obtain the digital signal of different numerical value, numerical value default in this digital signal value and the electric door controller software is compared the pushbutton switch that can determine on which bar branch road be pressed and carry out corresponding keypress function.So constantly move in circles, because the pulsed frequency of control signal is higher, so it is very little to light the time interval of pilot lamp and scanning button, because the visual persistence phenomenon of human eye, naked eyes it seems that pilot lamp lights always.So just can realize on the Electrically operated gate hand push button box lighting of a pilot lamp of control or extinguish by two lead-in wires, and the corresponding on off state of each button read in realization with function.It is lit a lamp and button trace routine process flow diagram is seen Fig. 4, be specially: beginning, the control signal of lighting a lamp output is delayed time several milliseconds, pass pilot lamp output, open the button sense channel, delay time several milliseconds, push button signalling AD conversion, judged whether that button presses, if then recognition by pressing keys and processing then is in standby if not, again carry out by " control signal of the lighting a lamp output " of beginning step.
The column count formula of pressing of resistance R 1---Rn calculates among Fig. 1, arranges so that analog quantity voltage corresponding to each button roughly is arithmetic progression, is easy to identification, and can effectively reduces erroneous judgement.Computing formula is as follows:
R is the resistance of sampling resistor in R/ (R+Rn)=n/ (N+1) formula, and n is the sampling resistor sequence number;
(N gets natural number to Rn=R* for (N+1)/n-1), n≤N;
For example: be 5.1K for the sampling resistor value, the button box of 4 buttons is arranged, namely during N=4,4 series impedances corresponding to pushbutton switch branch road are got respectively:
R1=5.1K* ((4+1)/1-1)=20.4K ~ ~ 20K, get nominal value 20K;
R2=5.1K* ((4+1)/2-1)=7.65K ~ ~ 7.6K, get nominal value 7.5K;
R3=5.1K* ((4+1)/3-1)=3.39K ~ ~ 3K3, get nominal value 3.3K;
R4=5.1K* ((4+1)/4-1)=1.25K ~ ~ 1.2K, get nominal value 1.2K.
Claims (6)
1. circuit with Electrically operated gate hand push button box of two-wire system structure, the pushbutton switch branch road that comprises a pilot lamp branch road and the parallel connection of n bar, it is characterized in that a described pilot lamp branch road (J0) and n bar pushbutton switch branch circuit parallel connection, the upper serial connection of described pilot lamp branch road (J0) rectification circuit (ZL1), voltage stabilizing diode of positive pole series connection and a light emitting diode (D2) of rectification circuit output end, pushbutton switch on the Jn bar branch road on the pushbutton switch branch road of described n bar parallel connection is connected in series respectively the resistance (Rn) of different resistances, and described n is natural number.
2. according to claim 1
A kind of circuit with Electrically operated gate hand push button box of two-wire system structureIt is characterized in that the end (L1) behind the branch circuit parallel connection links to each other with the general Purpose IO Interface pin of the MCU of electric door controller by the level translation impulse output circuit, the other end behind the branch circuit parallel connection (L2) links to each other with the A/D translation function pin of the MCU of electric door controller by the aanalogvoltage Acquisition Circuit.
3. according to claim 1
A kind of circuit with Electrically operated gate hand push button box of two-wire system structure, it is characterized in that a end (L1) behind the branch circuit parallel connection and the other end (L2) behind the branch circuit parallel connection do not distinguish polarity with being connected to of electric door controller and be connected.
4. according to claim 1
A kind of circuit with Electrically operated gate hand push button box of two-wire system structure, it is characterized in that ((N+1)/n-1) calculates the different resistance of resistance, and R is the resistance of sampling resistor in the formula, and n is the sampling resistor sequence number by formula Rn=R*; N≤N, N gets natural number, is the number of pushbutton switch branch road.
5. according to claim 1 and 2 or 3 or 4 described
A kind of circuit with Electrically operated gate hand push button box of two-wire system structureIt is characterized in that electric door controller comprises MCU, power circuit, electric machine rotation limit switch input circuit, aanalogvoltage Acquisition Circuit and level translation impulse output circuit, power circuit, electric machine rotation limit switch input circuit, aanalogvoltage Acquisition Circuit and level translation impulse output circuit all are connected with MCU.
6. according to claim 5
A kind of circuit with Electrically operated gate hand push button box of two-wire system structureIt is characterized in that pushbutton switch (Kn) on any pushbutton switch branch road (Jn) is when being pressed, then the corresponding button switching branches (Jn) is connected with the control signal input end (L2) of electric door controller, produce a current signal on this pushbutton switch branch road, this current signal is converted to the sampled voltage analog signals by a sampling resistor (RA1) again, input to the corresponding A/D translation function of the MCU pin of electric door controller, after being the digital quantity signal that can identify of MCU, analog to digital conversion carries out recognition by pressing keys, when the varying voltage signal that collects by sampling resistor, and when obtaining the digital signal of different numerical value, then numerical value default in this digital signal value and the electric door controller software is compared the pushbutton switch that can determine on which bar pushbutton switch branch road and be pressed and carry out corresponding keypress function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105502039A CN103048942A (en) | 2012-12-17 | 2012-12-17 | Circuit with two-wire system structure of manual button box for electric door |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105502039A CN103048942A (en) | 2012-12-17 | 2012-12-17 | Circuit with two-wire system structure of manual button box for electric door |
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| CN103048942A true CN103048942A (en) | 2013-04-17 |
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| CN2012105502039A Pending CN103048942A (en) | 2012-12-17 | 2012-12-17 | Circuit with two-wire system structure of manual button box for electric door |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103984329A (en) * | 2014-05-30 | 2014-08-13 | 常州联力自动化科技有限公司 | Mine equipment wireless controller |
| CN104426520A (en) * | 2013-09-10 | 2015-03-18 | 纬创资通股份有限公司 | Switching Circuit And Electronic Device |
| CN108091026A (en) * | 2018-01-18 | 2018-05-29 | 深圳市赛礴瑞科技有限公司 | A kind of two-wire system access control system |
| CN112099558A (en) * | 2020-07-29 | 2020-12-18 | 窦红雨 | Load regulation method |
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| CN201226491Y (en) * | 2008-06-27 | 2009-04-22 | 天津三星电子有限公司 | Remote controller without battery polar differentiation |
| CN201254918Y (en) * | 2008-09-01 | 2009-06-10 | 王建华 | Garage gate control system |
| CN201927128U (en) * | 2010-10-29 | 2011-08-10 | 重庆恩林电器有限公司 | Electronic doorbell switch adopting two-wire operation signal transmission |
| CN202975672U (en) * | 2012-12-17 | 2013-06-05 | 许如臣 | Circuit with two-wire system structure for manual button box of electrically-operated door |
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2012
- 2012-12-17 CN CN2012105502039A patent/CN103048942A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201226491Y (en) * | 2008-06-27 | 2009-04-22 | 天津三星电子有限公司 | Remote controller without battery polar differentiation |
| CN201254918Y (en) * | 2008-09-01 | 2009-06-10 | 王建华 | Garage gate control system |
| CN201927128U (en) * | 2010-10-29 | 2011-08-10 | 重庆恩林电器有限公司 | Electronic doorbell switch adopting two-wire operation signal transmission |
| CN202975672U (en) * | 2012-12-17 | 2013-06-05 | 许如臣 | Circuit with two-wire system structure for manual button box of electrically-operated door |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104426520A (en) * | 2013-09-10 | 2015-03-18 | 纬创资通股份有限公司 | Switching Circuit And Electronic Device |
| CN103984329A (en) * | 2014-05-30 | 2014-08-13 | 常州联力自动化科技有限公司 | Mine equipment wireless controller |
| CN108091026A (en) * | 2018-01-18 | 2018-05-29 | 深圳市赛礴瑞科技有限公司 | A kind of two-wire system access control system |
| CN108091026B (en) * | 2018-01-18 | 2023-12-26 | 深圳市小小微科技有限公司 | Two-wire access control system |
| CN112099558A (en) * | 2020-07-29 | 2020-12-18 | 窦红雨 | Load regulation method |
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Application publication date: 20130417 |