CN202818255U - Switching type bijection groove type photoelectric switch - Google Patents
Switching type bijection groove type photoelectric switch Download PDFInfo
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- CN202818255U CN202818255U CN 201120331193 CN201120331193U CN202818255U CN 202818255 U CN202818255 U CN 202818255U CN 201120331193 CN201120331193 CN 201120331193 CN 201120331193 U CN201120331193 U CN 201120331193U CN 202818255 U CN202818255 U CN 202818255U
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Abstract
The utility model provides a switching type bijection groove type photoelectric switch used for edge detection or stroke terminal position detection occasions, such as an elevator operation flat layer positioning detection, etc. The switching type bijection groove type photoelectric switch possesses two pairs of infrared light pipe possessing a switching function, can substantially raise a service life of a transmitting pipe and possesses the characteristics of a strong anti-interference capability, a simple line, low power dissipation, etc. The switching type bijection groove type photoelectric switch employs a plurality of voltage stabilization and protection circuits and has a wide voltage stabilization range; a square wave generator outputs signals to drive infrared emission; signals are received and are performed dynamic AC coupling to obtain signals for a control output circuit and possess a strong anti-interference capability. The switching type bijection groove type photoelectric switch possesses two pairs of infrared light pipes (A and B); when infrared lights are blocked, one pair of infrared light pipe in operation (such as A) stops operating and the other pair (such as B) is switched for operation; when infrared lights are not blocked, an original state is kept; when infrared lights are blocked again, the pair of infrared light pipe in operation (such as B) is stopped and the other pair of pipe A is switched.
Description
Technical field
The present invention is a kind of suitching type correlation grooved optoelectronic switch, can improve reliability and useful life, be used for the application scenario that edge or end-of-travel position detect, for example the flat bed location of elevator operation and some other shield light produce the occasion of output framing signal, be a very important detecting element, belong to the technological transformation of Photoelectric infrared switch device.
Background technology
Photoelectric infrared switch is used for the position probing occasion of the moving objects such as elevator, be used for the application scenario that edge or end-of-travel position detect, for example the flat bed location of elevator operation and some other shield light are located occasions, it is a very important detecting element, the stability of its work not only is related to whether accurately detection and location of the moving object such as elevator, more be related to the fail safe of moving object, therefore improving reliability and increasing the service life is the target that people pursue.The receiving processing circuit that present Photoelectric infrared switch is general adopts a pair of infrared emission receiving tube, no matter what situation all be by this to the not work of bay of infrared transmitting tube, cause that antijamming capability is relatively poor, useful life is shorter.
The objective of the invention is to improve system reliability and antijamming capability and adopt two pairs of infrared transmitting tubes to take turns to operate in order to overcome the shortcoming of traditional Photoelectric infrared switch.When the transmitting tube infrared light blocks, allow two pairs of infrared transmitting tubes switch, greatly improve the useful life of Photoelectric infrared switch.
Summary of the invention
The invention provides a kind of suitching type correlation grooved optoelectronic switch, be used for the application scenario that edge or end-of-travel position detect, example is in flat bed location and some other shield light location occasions of elevator operation.When the transmitting tube infrared light blocks, allow two pairs of infrared transmitting tubes switch, greatly improve the useful life of Photoelectric infrared switch, have the characteristics of strong anti-interference, low energy consumption.
Technical scheme of the present invention is: include emission control module, square-wave generator module, output control module, infrared receiving module, infrared transmission module, power module of voltage regulation, wherein square-wave generator module output is connected with the input of infrared transmission module with the input of output control module respectively, the output of output control module is connected input with the emission control module input respectively and is connected with infrared receiving module, the output of emission control module is connected with the infrared transmission module input.
Above-mentioned emission control module comprises JK flip-flop U4, capacitor C 6, resistance R 6, R7, R8, diode D9, D10, D11, D12, J among the JK flip-flop U4, S, K port connect and are connected with resistance R 8, and the R port among the JK flip-flop U4 is connected with capacitor C 6 and power supply, and the CLK port among the JK flip-flop U4 is connected with the input of the Q port of monostable flipflop 4538 and luminous tube D13, Q port among the JK flip-flop U4 is connected with diode D10 output port, among the JK flip-flop U4
Port is connected with the output port of diode D12, the J of resistance R 8 and trigger U4, K, S end and power supply connect, diode D9 input and resistance R 6, triode Q2 base stage connects, No. 10 pin and the diode D11 output of diode D9 output and trigger HEF40106 are connected, resistance R 6 is connected with power supply and diode D9, the input of D10 connects, diode D10 input and resistance R 6, triode Q2 base stage connects, diode D10 output is connected with Q port among the JK flip-flop U4, No. 10 pin and the diode D9 output of diode D11 output and trigger HEF40106 are connected, diode D11 input and resistance R 7, triode Q3 base stage connects, diode D12 output and JK flip-flop 74HC112's
Port connects, diode D12 input is connected with resistance R 7, triode Q3 base stage, resistance R 7 is connected with power supply and the input of diode D11, D12 connects, and capacitor C 6 one ends are connected with ground wire, and capacitor C 6 other ends are connected with the R end of power supply and trigger 74HC112.
Above-mentioned infrared receiving module comprises Schmidt trigger HEF40106, infrared receiving tube D16, D17, triode Q6, Q7, resistance R 13, R14, R16, R17, R18, R19, R20, capacitor C 7, C8, C9, C10, C11, the base stage of triode Q6 is connected with capacitor C 7 and resistance R 16, the collector electrode of triode Q6 is connected with triode Q7 base stage and resistance R 12, the emitter of triode Q6 is connected with resistance R 15, the base stage of triode Q7 is connected with collector electrode and the resistance R 12 of triode Q6, the emitter of triode Q7 and power supply and resistance R 13, capacitor C 11 connects, the collector electrode of triode Q7 is connected with resistance R 14, infrared receiving tube D16 input and capacitor C 8, resistance R 18 and infrared receiving tube D17 input connect, infrared receiving tube D16 output and resistance R 19, resistance R 20, capacitor C 9 and infrared receiving tube D17 output connect, infrared receiving tube D17 input and capacitor C 8, resistance R 18 and infrared receiving tube D16 input connect, infrared receiving tube D17 output and resistance R 19, resistance R 20, capacitor C 9 and infrared receiving tube D16 output connect.
Above-mentioned output control module comprises monostable flipflop HCF4538, capacitor C 2, C3, resistance R 2, R3, R9, R10, R11, R12, diode D14, D15, triode Q4, Q5, light emitting LED lamp D13, wherein the RC of monostable flipflop HCF4538 holds and capacitor C 2, resistance R 3 connects, the CX end of monostable flipflop HCF4538 is connected with ground wire and capacitor C 2, monostable flipflop HCF4538+T end is connected with No. 12 pin of trigger HEF40106, monostable flipflop HCF4538-T end is connected with No. 6 pin of trigger HEF40106, the R end of monostable flipflop HCF4538 is connected with power supply and capacitor C 3, the Q end of monostable flipflop HCF4538 is connected with the CLK of trigger 74HC112, monostable flipflop HCF4538's
Mouth end and resistance R 12, R10 connects, the base stage of triode Q5 and resistance R 10, R11 connects, the collector electrode of triode Q5 is connected with the output of diode D15, the emitter of triode Q5 and resistance R 11, diode D15 input and ground wire connect, the base stage of triode Q4 and resistance R 9, R2 connects, the collector electrode of triode Q4 is connected with the output of diode D14, the emitter of triode Q4 and resistance R 2, diode D14 input and ground wire connect, output loading port C is connected with the collector electrode of triode Q5 and the output of diode D15, and output loading port D is connected with the collector electrode of triode Q4 and the output of diode D14.
Above-mentioned power module comprises diode D2, D3, D4, D5, capacitor C 4, C5, field effect transistor Q1, fuse RT1, resistance R 4, R5, voltage stabilizing chip 7805, wherein the VO mouth of voltage stabilizing chip 7805 connects power supply, the VI mouth of voltage stabilizing chip 7805 and capacitor C 5, resistance R 5, the output of diode D5, the source electrode of resistance R 4 and field effect transistor Q1 connects, the output of the grid of field effect transistor Q1 and diode D4, resistance R 4, the input of diode D5 connects, the drain electrode of field effect transistor Q1 and diode D2, the output of D3 and capacitor C 4 connect, and the anodal port A of external power supply is connected with diode D3 is anodal, and external power supply negative pole port B is connected with RT1.
The present invention compared with prior art has following features:
(1) wherein infrared emission is to produce 2KHz left and right sides frequency square-wave signal by square-wave generator, drives infrared transmission module, and offers the triggering change-over circuit; When not having the object blocks infrared light to receive, infrared receiving circuit receives the outer square wave signal of red sage, and coupling obtains the low level control signal through dynamic communication, and control triggers change-over circuit driver output circuit; When having the object blocks infrared light to receive, control signal is high level, and feeds back to the control input end by the output high level signal, has so very strong antijamming capability.
(2) the present invention has two pairs of infraluminescence pipes of A, B, when infrared light is blocked, originally work a pair of infrared tube (as A to the pipe) quit work, by countdown circuit switch to other pair of pipes (as B to the pipe) work; When infrared light is not blocked, keep original state; When infrared light was blocked again, the infrared tube work that stops to work switched to A the plumber is done.
(3) adopt the power circuit of multiple protective and voltage stabilizing, when outside instantaneous voltage during greater than 50V, have over-voltage protecting function; When current supply circuit electric current during greater than limit value, employing can recover the protective tube protection; Adopt the input voltage of input voltage clamp circuit restriction secondary voltage stabilizing circuit, guarantee that power circuit has wider voltage stabilized range.
Description of drawings
Fig. 1 is suitching type correlation grooved photoswitch circuit schematic diagram of the present invention.
Embodiment
For reaching the purpose of foregoing invention content, by the following technical solutions: as shown in Figure 1 and Figure 2, square-wave generator, emission control, output control, infrared reception, infrared emission, stabilized voltage power supply etc. have been the present invention includes, wherein one-shot multivibrator U1:B is the core of Photoelectric infrared switch as output control; The square-wave generator output signal drives infrared transmitting tube, and infrared light provides dynamic communication signal controlling one-shot multivibrator U1:B trigger control circuit by to being mapped to infrared receiving tube; The JK flip-flop U4:A of emission control is responsible for the switching controls of two transmitting tubes; Voltage-stabilized power supply circuit provides wide region voltage stabilizing and highly reliable power supply.
Wherein A and the B by Schmidt trigger U2 forms the square wave output circuit, and the square-wave signal of output 2KHz drives infrared transmitting tube Q2 and Q3, and transient voltage twin zener dioder D6 protects infrared transmitting tube Q2 and Q3; This square-wave signal outputs to one-shot multivibrator U1:B's-the T end simultaneously, and triggering signal becomes to attach most importance to.Two pairs of emissions receive pipe A and B are comprised of infrared transmitting tube Q2, diode D16 and infrared transmitting tube Q3, diode D17 respectively, when not having shelter between the correlation pipe, infrared receiving tube D16 or D17 receive square-wave signal, triode Q6 output low level signal, so that 13 pin of Schmidt trigger U2 be high level, one-shot multivibrator U1:B's+T end is low level, at this moment the Q of one-shot multivibrator U1:B holds output low level, not conducting of infrared transmitting tube Q4, infrared transmitting tube Q5 conducting.When between the correlation pipe shelter being arranged, make triode Q6 output high level signal by diode D16 or D17 reception, be high level, infrared transmitting tube Q4 conducting, not conducting of infrared transmitting tube Q5 through the Q end that makes one-shot multivibrator U1:B behind the Schmidt trigger U2 again.
Wherein the JK flip-flop of the employing JK flip-flop U4:A of countdown circuit is responsible for the switching controls of two transmitting tubes, the J of JK flip-flop U4:A and K two ends all are to connect high level, wherein clock signal input terminal CLK connects the Q end from one-shot multivibrator U1:B so that the Q of JK flip-flop U4:A end and
End upset, the Q end of JK flip-flop U4:A and
End is controlled respectively infrared transmitting tube Q2 and Q3.When being between the correlation pipe when shelter being arranged and not having the shelter conversion, the Q end of one-shot multivibrator U1:B can produce corresponding energizing signal, with as JK flip-flop U4:A clock input signal, complete cycle make JK flip-flop U4:A the Q end and
Hold corresponding saltus step once, through twice from have no occluder after the conversion that shelter is arranged, two transmitting tubes are finished a switch operating cycle.
Wherein voltage-stabilized power supply circuit has multiple protective and wide region voltage stabilizing, when outside instantaneous voltage during greater than 50V, as overvoltage protection, and forms overcurrent protection by recovering protective tube RT1 by transient voltage twin zener dioder D3; Can recover protective tube RT1 and can also carry out overcurrent protection to current supply circuit; Form the input voltage clamp circuit by infrared transmitting tube Q1, diode D4, diode D5, resistance R 4 etc., the input voltage of restriction secondary voltage stabilizing circuit voltage stabilizing chip U3 guarantees that power circuit has wider voltage stabilized range.
Claims (5)
1. suitching type correlation grooved optoelectronic switch, include emission control (2), square-wave generator (5), output control (1), infrared reception (4), infrared emission (3), stabilized voltage power supply (6), it is characterized in that square-wave generator (5) output is connected with the input of infrared emission (3) with the input of output control (1) respectively, the output of output control (1) respectively with emission control (2) input be connected the input of reception (4) and be connected, the output of emission control (2) is connected with infrared emission (3) input.
2. suitching type correlation grooved optoelectronic switch according to claim 1, it is characterized in that above-mentioned emission control (2) comprises JK flip-flop U4, capacitor C 6, resistance R 6, R7, R8, diode D9, D10, D11, D12, J among the JK flip-flop U4, S, the K port connects and is connected with resistance R 8, R port among the JK flip-flop U4 is connected with capacitor C 6 and power supply, CLK port among the JK flip-flop U4 is connected with the input of the Q port of monostable flipflop 4538 and luminous tube D13, Q port among the JK flip-flop U4 is connected with diode D10 output port, among the JK flip-flop U4
Port is connected with the output port of diode D12, the J of resistance R 8 and trigger U4, K, S end and power supply connect, diode D9 input and resistance R 6, triode Q2 base stage connects, No. 10 pin and the diode D11 output of diode D9 output and trigger HEF40106 are connected, resistance R 6 is connected with power supply and diode D9, the input of D10 connects, diode D10 input and resistance R 6, triode Q2 base stage connects, diode D10 output is connected with Q port among the JK flip-flop U4, No. 10 pin and the diode D9 output of diode D11 output and trigger HEF40106 are connected, diode D11 input and resistance R 7, triode Q3 base stage connects, diode D12 output and JK flip-flop 74HC112's
Port connects, diode D12 input is connected with resistance R 7, triode Q3 base stage, resistance R 7 is connected with power supply and the input of diode D11, D12 connects, and capacitor C 6 one ends are connected with ground wire, and capacitor C 6 other ends are connected with the R end of power supply and trigger 74HC112.
3. suitching type correlation grooved optoelectronic switch according to claim 1, it is characterized in that above-mentioned infrared reception (4) comprises Schmidt trigger HEF40106, infrared receiving tube D16, D17, triode Q6, Q7, resistance R 13, R14, R16, R17, R18, R19, R20, capacitor C 7, C8, C9, C10, C11, the base stage of triode Q6 is connected with capacitor C 7 and resistance R 16, the collector electrode of triode Q6 is connected with triode Q7 base stage and resistance R 12, the emitter of triode Q6 is connected with resistance R 15, the base stage of triode Q7 is connected with collector electrode and the resistance R 12 of triode Q6, the emitter of triode Q7 and power supply and resistance R 13, capacitor C 11 connects, the collector electrode of triode Q7 is connected with resistance R 14, infrared receiving tube D16 input and capacitor C 8, resistance R 18 and infrared receiving tube D17 input connect, infrared receiving tube D16 output and resistance R 19, resistance R 20, capacitor C 9 and infrared receiving tube D17 output connect, infrared receiving tube D17 input and capacitor C 8, resistance R 18 and infrared receiving tube D16 input connect, infrared receiving tube D17 output and resistance R 19, resistance R 20, capacitor C 9 and infrared receiving tube D16 output connect.
4. suitching type correlation grooved optoelectronic switch according to claim 1, it is characterized in that above-mentioned output control (1) comprises monostable flipflop HCF4538, capacitor C 2, C3, resistance R 2, R3, R9, R10, R11, R12, diode D14, D15, triode Q4, Q5, light emitting LED lamp D13, wherein the RC of monostable flipflop HCF4538 holds and capacitor C 2, resistance R 3 connects, the CX end of monostable flipflop HCF4538 is connected with ground wire and capacitor C 2, monostable flipflop HCF4538+T end is connected with No. 12 pin of trigger HEF40106, monostable flipflop HCF4538-T end is connected with No. 6 pin of trigger HEF40106, the R end of monostable flipflop HCF4538 is connected with power supply and capacitor C 3, and the Q end of monostable flipflop HCF4538 is connected with the CLK of trigger 74HC112, monostable flipflop HCF4538's
Mouth end and resistance R 12, R10 connects, the base stage of triode Q5 and resistance R 10, R11 connects, the collector electrode of triode Q5 is connected with the output of diode D15, the emitter of triode Q5 and resistance R 11, diode D15 input and ground wire connect, the base stage of triode Q4 and resistance R 9, R2 connects, the collector electrode of triode Q4 is connected with the output of diode D14, the emitter of triode Q4 and resistance R 2, diode D14 input and ground wire connect, output loading port C is connected with the collector electrode of triode Q5 and the output of diode D15, and output loading port D is connected with the collector electrode of triode Q4 and the output of diode D14.
5. suitching type correlation grooved optoelectronic switch according to claim 1, it is characterized in that above-mentioned power supply (6) comprises diode D2, D3, D4, D5, capacitor C 4, C5, field effect transistor Q1, fuse RT1, resistance R 4, R5, voltage stabilizing chip 7805, wherein the VO mouth of voltage stabilizing chip 7805 connects power supply, the VI mouth of voltage stabilizing chip 7805 and capacitor C 5, resistance R 5, the output of diode D5, the source electrode of resistance R 4 and field effect transistor Q1 connects, the output of the grid of field effect transistor Q1 and diode D4, resistance R 4, the input of diode D5 connects, the drain electrode of field effect transistor Q1 and diode D2, the output of D3 and capacitor C 4 connect, the anodal port A of external power supply is connected with diode D3 is anodal, and external power supply negative pole port B is connected with RT1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120331193 CN202818255U (en) | 2011-09-05 | 2011-09-05 | Switching type bijection groove type photoelectric switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120331193 CN202818255U (en) | 2011-09-05 | 2011-09-05 | Switching type bijection groove type photoelectric switch |
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| Publication Number | Publication Date |
|---|---|
| CN202818255U true CN202818255U (en) | 2013-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120331193 Withdrawn - After Issue CN202818255U (en) | 2011-09-05 | 2011-09-05 | Switching type bijection groove type photoelectric switch |
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| CN (1) | CN202818255U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983848A (en) * | 2011-09-05 | 2013-03-20 | 中山碧图电子科技有限公司 | Changing-over type correlation trough type optoelectronic switch |
| CN103684385A (en) * | 2013-11-05 | 2014-03-26 | 杭州优迈科技有限公司 | Anti-interference photoelectric switch circuit |
| CN111830877A (en) * | 2020-07-24 | 2020-10-27 | 苏州易泰勒电子科技有限公司 | Safety grating control device |
-
2011
- 2011-09-05 CN CN 201120331193 patent/CN202818255U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983848A (en) * | 2011-09-05 | 2013-03-20 | 中山碧图电子科技有限公司 | Changing-over type correlation trough type optoelectronic switch |
| CN102983848B (en) * | 2011-09-05 | 2015-09-02 | 中山碧图电子科技有限公司 | Suitching type correlation groove type photoelectric switch |
| CN103684385A (en) * | 2013-11-05 | 2014-03-26 | 杭州优迈科技有限公司 | Anti-interference photoelectric switch circuit |
| CN103684385B (en) * | 2013-11-05 | 2016-06-22 | 杭州优迈科技有限公司 | A kind of jamproof photoswitch circuit |
| CN111830877A (en) * | 2020-07-24 | 2020-10-27 | 苏州易泰勒电子科技有限公司 | Safety grating control device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130320 Effective date of abandoning: 20150902 |
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| RGAV | Abandon patent right to avoid regrant |