CN207884590U - Large range laser optoelectronic switch - Google Patents
Large range laser optoelectronic switch Download PDFInfo
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- CN207884590U CN207884590U CN201820338409.8U CN201820338409U CN207884590U CN 207884590 U CN207884590 U CN 207884590U CN 201820338409 U CN201820338409 U CN 201820338409U CN 207884590 U CN207884590 U CN 207884590U
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Abstract
The utility model is related to a kind of large range laser optoelectronic switches, including semiconductor laser generator and signal processing system, signal processing system include filtering and amplifying circuit module, ultra high speed A/D conversion circuit module, high speed FIFO circuit module, DSP control circuit modules, compare and screening circuit module, pixel count processing circuit module, signal designation output circuit module；Wherein, filtering and amplifying circuit module is made of second operational amplifier, resistance R24, R25, R27, R28, adjustable resistance R26 and capacitance C5, C6, wherein the positive input pin of second operational amplifier is connect with resistance R24；The negative input pin of second operational amplifier is sequentially connected adjustable resistance R26 and capacitance C6.The utility model is designed by using foregoing circuit, and transducer range can be made to reach 50m, and cost is lower, can reduce user's purchase cost, and for enriching the type of optoelectronic switch, widely applicable property has positive effect, can preferably meet the market demand.
Description
Technical field：
The utility model belongs to optoelectronic switch technical field, refers in particular to a kind of large range laser optoelectronic switch.
Background technology：
Background 1：Present field of industrial production, automated production equipment requirement are intelligentized simultaneously, it is desirable that sensor detects
Distance is big, however existing photoelectric sensor, and the detecting distances such as proximity sensor are all in 15 meters, it is difficult to meet detecting distance
More than the requirement of 15M automated machines.
Background 2：Existing photoelectric sensor, the sensors hot spot such as ultrasonic wave, sound wave is all bigger than normal, is not suitable for detection such as chip
The detection of the tiny workpiece such as stitch, while being easy to be interfered by adjacency object and generate error detection, it is low etc. to exist simultaneously sensitivity
Problem.
For this purpose, applicant once developed a kind of large range laser sensor, however its range is up to 100 meters, however certain
A little occasions do not need to the photoelectric sensor of so wide range, from the diversity of optoelectronic switch product and widely applicable property, at
This etc. considers that applicant feels the need to use different circuit designs preferably to meet the market demand.
Utility model content：
The purpose of this utility model is to be to overcome the above-mentioned shortcoming of the prior art, provides a kind of large range laser light
Electric switch.
The technical solution adopted in the utility model is：A kind of large range laser optoelectronic switch, including semiconductor laser occur
Device and signal processing system, the signal processing system include filtering and amplifying circuit module, ultra high speed A/D conversion circuit module, high speed
Fifo circuit module, DSP control circuit modules, compare and screening circuit module, pixel count processing circuit module, signal designation
Output circuit module；Wherein,
The semiconductor laser generator by first comparator, laser diode D1, D2, D3, D4, resistance R2, R3, R4,
Adjustable resistance R5, capacitance C4 compositions, wherein resistance R2 connects with laser diode D1, D2, resistance R3 and laser diode D3,
D4 connects, and resistance R4 connects with adjustable resistance R5, in parallel after three groups of series connection, and latter public terminating resistor R1 in parallel is followed by power supply,
Another common end is connect with DSP control circuit modules；The positive input pin connection resistance R3 and laser diode of first comparator
Between D3, negative input pin connects the adjustable side of adjustable resistance R5, and the power input of first comparator is connect with resistance R1；First
The output end of comparator is connect with DSP control circuit modules；The common end of one end connection resistance R2, R3, R4 of capacitance C4, it is another
End connection DSP control circuit modules；
The DSP control circuit modules are by the second comparator, resistance R6, R7, R8, diode D5, light emitting diode D6, three
Pole pipe Q1, signal relay KS compositions, wherein the positive input pin of the second comparator is connect with capacitance C4, the second comparator
Negative input pin and the output end of first comparator connect；Resistance R6, R7 and light emitting diode D6 series connection, diode D5 and signal
It is connect with the emitter of triode Q1 after relay KS parallel connections；Common end and the electricity of resistance R6, diode D5, signal relay KS
Hinder the common end connection of R2, R3, R4；The collector of triode Q1 connect with light emitting diode D6 and with laser diode D2, D4
Common end connection；The output end of second comparator is connect with the common end of resistance R6, R7, and the base stage of triode Q1 is by electricity
It is also connect with the common end of resistance R6, R7 after resistance R8；
The comparison and screening circuit module are by third comparator, capacitance C2, C3, resistance R9, R10 and light emitting diode
D7 is formed；Wherein, the positive input pin of third comparator passes through the triode Q1's in resistance R11 and DSP control circuit modules
Collector connects, and the negative input pin of third comparator is grounded after capacitance C2, and the ground connection pin of third comparator is by electricity
It is grounded after holding C3；The outer end of resistance R10, R9, light emitting diode D7 series connection, resistance R10 connects power supply, and light emitting diode D7's is negative
Pole is grounded；The output end of third comparator, which connect with the common end of resistance R9, R10 and counts processing circuit module with pixel, to be connected
It connects；
The pixel counts processing circuit module and signal designation output circuit module by the first operational amplifier, capacitance
C1, resistance R12, R13, light emitting diode D8, diode D9 and triode Q2 are collectively constituted；Wherein, first operational amplifier
Positive input pin is connect with capacitance C1 and the capacitance C1 other ends are grounded, while the positive input pin of the first operational amplifier also passes through
One resistance R14 in DSP control circuit modules resistance R6, diode D5, signal relay KS common end connect；First fortune
The negative input pin for calculating amplifier is connect with the output end of third comparator；The output end and resistance R12 of first operational amplifier,
R13, the cathode of diode D9, triode Q2 emitter connect jointly；The collector of the anode and triode Q2 of diode D9
Connect simultaneously connection signal output end；The base stage of triode Q2 is connect with the first operational amplifier；Light emitting diode D8 anode with
Resistance R12 series connection, the cathode ground connection of light emitting diode D8；
The filtering and amplifying circuit module is by second operational amplifier, resistance R24, R25, R27, R28, adjustable resistance R26
It is formed with capacitance C5, C6, wherein the positive input pin of second operational amplifier is connect with resistance R24；Second operational amplifier
Negative input pin is sequentially connected adjustable resistance R26 and capacitance C6；Resistance after the adjustable side of adjustable resistance R26 is connected with resistance R28
The outer end of R28 and the positive input pin of second operational amplifier and resistance R24 connections；The other end of capacitance C6 swashs with semiconductor
Resistance R4 connections in optical generator；The negative input pin of one end of resistance R25 and second operational amplifier connects, the other end with
The output end of second operational amplifier connects；One end of resistance R27 is connected between adjustable resistance R26 and capacitance C6, the other end
Connect the first comparator in semiconductor laser generator；One end of capacitance C5 is connect with power supply, the other end and semiconductor laser
The common end connection of resistance R2, R3 in generator；
The ultra high speed A/D conversion circuit module and high speed FIFO circuit module by third operational amplifier, adjustable resistance R21,
Resistance R22, R29 capacitance C7 and triode Q3 connect composition jointly, wherein the positive input pin of third operational amplifier is connected
It is connect with the output end of second operational amplifier after resistance R29, the positive input pin of third operational amplifier also connects with capacitance C7
It connects, capacitance C7 other ends ground connection；The adjustable side of the negative input pin connection adjustable resistance R21 of third operational amplifier, adjustable electric
A termination power in the another both ends of R21 is hindered, the other end is connect with the resistance R6 in DSP control circuit modules；The collection of triode Q3
Electrode is connect with the output end of third operational amplifier, the base stage of triode Q3 connect with resistance R22 after with third operation amplifier
Device connects；The emitter of triode Q3 is connect with the common end of resistance R6, diode D5, signal relay KS.
The utility model is designed by using foregoing circuit, and transducer range can be made to reach 50m, and cost is lower, can be reduced
User's purchase cost, for enriching the type of optoelectronic switch, widely applicable property has positive effect, can preferably meet market need
It asks.
Description of the drawings：
Fig. 1 is the circuit diagram of the utility model laser sensor.
Specific implementation mode：
The utility model is further illustrated with reference to specific embodiments and the drawings.
As shown in Figure 1, a kind of large range laser optoelectronic switch described in the utility model, including semiconductor laser generator
1 and signal processing system, the signal processing system includes filtering and amplifying circuit module 2, ultra high speed A/D conversion circuit module 3, high
Fast fifo circuit module 4, DSP control circuit modules 5, compare and screening circuit module 6, pixel count processing circuit module 7, letter
Number instruction output circuit module 8；Wherein,
The semiconductor laser generator 1 by first comparator 11, laser diode D1, D2, D3, D4, resistance R2, R3,
R4, adjustable resistance R5, capacitance C4 compositions, wherein resistance R2 connects with laser diode D1, D2, resistance R3 and laser diode
D3, D4 connect, and resistance R4 connects with adjustable resistance R5, in parallel after three groups of series connection, and latter public terminating resistor R1 in parallel is followed by electricity
Source, another common end are connect with DSP control circuit modules；Positive input pin connection resistance R3 and two pole of laser of first comparator
Between pipe D3, negative input pin connects the adjustable side of adjustable resistance R5, and the power input of first comparator 11 is connect with resistance R1；
The output end of first comparator 11 is connect with DSP control circuit modules；One end connection resistance R2, R3, R4's of capacitance C4 is public
End, the other end connect DSP control circuit modules；
The DSP control circuit modules 5 are by the second comparator 51, resistance R6, R7, R8, diode D5, light emitting diode
D6, triode Q1, signal relay KS compositions, wherein the positive input pin of the second comparator 51 is connect with capacitance C4, the second ratio
Negative input pin compared with device 51 is connect with the output end of first comparator 11；Resistance R6, R7 and light emitting diode D6 series connection, two poles
Pipe D5 is connect with after signal relay KS parallel connections with the emitter of triode Q1；Resistance R6, diode D5, signal relay KS
Common end is connect with the common end of resistance R2, R3, R4；The collector of triode Q1 connect with light emitting diode D6 and with laser two
The common end of pole pipe D2, D4 connects；The output end of second comparator 51 is connect with the common end of resistance R6, R7, and triode Q1
Base stage also connect with the common end of resistance R6, R7 after resistance R8；
The comparison and screening circuit module 6 are by third comparator 61, capacitance C2, C3, resistance R9, R10 and luminous two
Pole pipe D7 compositions；Wherein, the positive input pin of third comparator passes through the triode in resistance R11 and DSP control circuit modules 5
The collector of Q1 connects, and the negative input pin of third comparator 61 is grounded after capacitance C2, and the ground connection of third comparator 61 connects
Foot is grounded after capacitance C3；Resistance R10, R9, light emitting diode D7 series connection, the outer end of resistance R10 connects power supply, light-emitting diodes
The cathode of pipe D7 is grounded；The output end of third comparator 61 connect with the common end of resistance R9, R10 and counts processing electricity with pixel
Road module connection；
The pixel counts processing circuit module 7 and signal designation output circuit module 8 by the first operational amplifier 71, electricity
Hold C1, resistance R12, R13, R14, light emitting diode D8, diode D9 and triode Q2 to collectively constitute；Wherein, the first operation is put
The positive input pin of big device 71 is connect with capacitance C1 and the capacitance C1 other ends are grounded, while the positive input of the first operational amplifier 71
Pin also passes through the common end company of resistance R14 and resistance R6, diode D5, signal relay KS in DSP control circuit modules 5
It connects；The negative input pin of first operational amplifier 71 is connect with the output end of third comparator 61；First operational amplifier 71
Output end is connect jointly with the emitter of resistance R12, R13, the cathode of diode D9, triode Q2；Diode D9 anode with
The collector of triode Q2 connects and connection signal output end；The base stage of triode Q2 is connect with the first operational amplifier 71；Hair
The anode of optical diode D8 is connected with resistance R12, the cathode ground connection of light emitting diode D8；
The filtering and amplifying circuit module 2 is by second operational amplifier 21, resistance R24, R25, R27, R28, adjustable resistance
R26 and capacitance C5, C6 composition, wherein the positive input pin of second operational amplifier 21 is connect with resistance R24；Second operation is put
The negative input pin of big device 21 is sequentially connected adjustable resistance R26 and capacitance C6；It is gone here and there with resistance R28 the adjustable side of adjustable resistance R26
The outer end of resistance R28 is connect with the positive input pin of second operational amplifier 21 and resistance R24 after connection；The other end of capacitance C6 with
It is connect with the resistance R4 in semiconductor laser generator 1；One end of resistance R25 and the negative input pin of second operational amplifier 21
Connection, the other end are connect with the output end of second operational amplifier 21；One end of resistance R27 is connected to adjustable resistance R26 and electricity
Between holding C6, the other end connects the first comparator in semiconductor laser generator 1；One end of capacitance C5 is connect with power supply, separately
One end is connect with the common end of resistance R2, R3 in semiconductor laser generator；
The ultra high speed A/D conversion circuit module 3 and high speed FIFO circuit module 4 are by third operational amplifier 31, adjustable resistance
R21, resistance R22, R29, capacitance C7 and triode Q3 connect composition jointly, wherein the positive input of third operational amplifier 31
It is connect with the output end of second operational amplifier 21 after pin series resistance R29, the positive input pin of third operational amplifier 31
It is also connect with capacitance C7, capacitance C7 other ends ground connection；The negative input pin connection adjustable resistance R21's of third operational amplifier 31
Adjustable side, a termination power in the another both ends of adjustable resistance R21, the other end connect with the resistance R6 in DSP control circuit modules 5
It connects；The collector of triode Q3 is connect with the output end of third operational amplifier 31, and the base stage of triode Q3 is connected with resistance R22
It is connect afterwards with third operational amplifier 31；The emitter of triode Q3 and resistance R6, diode D5, signal relay KS it is public
End connection.
The utility model is designed by using foregoing circuit, and transducer range can be made to reach 50m, realizes wide range, is used
Range is wider, and laser sensor can also be made to achieve the effect that extra small hot spot and superhigh precision, laser spot diameter are only
0.5mm can realize high-precision positioning to object to be detected, contour sensitivity technique be limited, particularly with high-accuracy intelligence
Change equipment requirement, and can realize to diameter be less than 1mm small items such as chip stitch, the similar articles such as hairline it is steady
Fixed reliable detection；Moreover, the circuit module of the utility model laser sensor simplifies, cost is lower, can reduce user's buying
Cost.
Claims (1)
1. a kind of large range laser optoelectronic switch, including semiconductor laser generator and signal processing system, the signal processing
System include filtering and amplifying circuit module, ultra high speed A/D conversion circuit module, high speed FIFO circuit module, DSP control circuit modules,
Comparison and screening circuit module, pixel count processing circuit module, signal designation output circuit module；It is characterized in that：
The semiconductor laser generator is by first comparator, laser diode D1, D2, D3, D4, resistance R2, R3, R4, adjustable
Resistance R5, capacitance C4 compositions, wherein resistance R2 connects with laser diode D1, D2, and resistance R3 goes here and there with laser diode D3, D4
Connection, resistance R4 connect with adjustable resistance R5, in parallel after three groups of series connection, and latter public terminating resistor R1 in parallel is followed by power supply, another
Common end is connect with DSP control circuit modules；The connection of positive input pin resistance R3 and the laser diode D3 of first comparator it
Between, negative input pin connects the adjustable side of adjustable resistance R5, and the power input of first comparator is connect with resistance R1；First compares
The output end of device is connect with DSP control circuit modules；The common end of one end connection resistance R2, R3, R4 of capacitance C4, the other end connect
Connect DSP control circuit modules；
The DSP control circuit modules are by the second comparator, resistance R6, R7, R8, diode D5, light emitting diode D6, triode
Q1, signal relay KS compositions, wherein the positive input pin of the second comparator is connect with capacitance C4, and bearing for the second comparator is defeated
The output end for entering pin and first comparator connects；Resistance R6, R7 and light emitting diode D6 series connection, diode D5 and signal relay
It is connect with the emitter of triode Q1 after device KS parallel connections；Resistance R6, diode D5, the common end of signal relay KS and resistance
The common end of R2, R3, R4 connect；The collector of triode Q1 connect with light emitting diode D6 and with laser diode D2, D4
Common end connects；The output end of second comparator is connect with the common end of resistance R6, R7, and the base stage of triode Q1 passes through resistance
It is also connect with the common end of resistance R6, R7 after R8；
The comparison and screening circuit module are by third comparator, capacitance C2, C3, resistance R9, R10 and light emitting diode D7 groups
At；Wherein, the current collection that the positive input pin of third comparator passes through the triode Q1 in resistance R11 and DSP control circuit modules
Pole connects, and the negative input pin of third comparator is grounded after capacitance C2, and the ground connection pin of third comparator passes through capacitance C3
After be grounded；Resistance R10, R9, light emitting diode D7 series connection, the outer end of resistance R10 connect power supply, and the cathode of light emitting diode D7 connects
Ground；The output end of third comparator connect with the common end of resistance R9, R10 and counts processing circuit module with pixel and connect；
The pixel counts processing circuit module and signal designation output circuit module by the first operational amplifier, capacitance C1, electricity
Resistance R12, R13, R14, light emitting diode D8, diode D9 and triode Q2 are collectively constituted；Wherein, the first operational amplifier is being just
Input pin is connect with capacitance C1 and the capacitance C1 other ends are grounded, while the positive input pin of the first operational amplifier also passes through electricity
Resistance R14 in DSP control circuit modules resistance R6, diode D5, signal relay KS common end connect；First operation is put
The negative input pin of big device is connect with the output end of third comparator；The output end and resistance R12, R13 of first operational amplifier,
The cathode of diode D9, the emitter of triode Q2 connect jointly；The anode of diode D9 is connect with the collector of triode Q2
And connection signal output end；The base stage of triode Q2 is connect with the first operational amplifier；The anode and resistance of light emitting diode D8
R12 connects, the cathode ground connection of light emitting diode D8；
The filtering and amplifying circuit module is by second operational amplifier, resistance R24, R25, R27, R28, adjustable resistance R26 and electricity
Hold C5, C6 composition, wherein the positive input pin of second operational amplifier is connect with resistance R24；Bearing for second operational amplifier is defeated
Enter pin and is sequentially connected adjustable resistance R26 and capacitance C6；Resistance R28 after the adjustable side of adjustable resistance R26 is connected with resistance R28
The positive input pin and resistance R24 connections of outer end and second operational amplifier；The other end of capacitance C6 is sent out with semiconductor laser
Resistance R4 connections in raw device；One end of resistance R25 and the negative input pin of second operational amplifier connect, the other end and second
The output end of operational amplifier connects；One end of resistance R27 is connected between adjustable resistance R26 and capacitance C6, other end connection
First comparator in semiconductor laser generator；One end of capacitance C5 is connect with power supply, and the other end occurs with semiconductor laser
The common end connection of resistance R2, R3 in device；
The ultra high speed A/D conversion circuit module and high speed FIFO circuit module are by third operational amplifier, adjustable resistance R21, resistance
R22, R29 capacitance C7 and triode Q3 connect composition jointly, wherein the positive input pin series resistance of third operational amplifier
It is connect with the output end of second operational amplifier after R29, the positive input pin of third operational amplifier is also connect with capacitance C7, electricity
Hold C7 other ends ground connection；The adjustable side of the negative input pin connection adjustable resistance R21 of third operational amplifier, adjustable resistance R21
Another both ends in a termination power, the other end connect with the resistance R6 in DSP control circuit modules；The collector of triode Q3 with
The output end of third operational amplifier connects, and the base stage of triode Q3 is connect with after resistance R22 series connection with third operational amplifier；
The emitter of triode Q3 is connect with the common end of resistance R6, diode D5, signal relay KS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820338409.8U CN207884590U (en) | 2018-03-12 | 2018-03-12 | Large range laser optoelectronic switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820338409.8U CN207884590U (en) | 2018-03-12 | 2018-03-12 | Large range laser optoelectronic switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207884590U true CN207884590U (en) | 2018-09-18 |
Family
ID=63496148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820338409.8U Expired - Fee Related CN207884590U (en) | 2018-03-12 | 2018-03-12 | Large range laser optoelectronic switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207884590U (en) |
-
2018
- 2018-03-12 CN CN201820338409.8U patent/CN207884590U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180918 |
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| CF01 | Termination of patent right due to non-payment of annual fee |