CN206535050U - A kind of contactless optical electronics altitude touch machine - Google Patents
A kind of contactless optical electronics altitude touch machine Download PDFInfo
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- CN206535050U CN206535050U CN201720225565.9U CN201720225565U CN206535050U CN 206535050 U CN206535050 U CN 206535050U CN 201720225565 U CN201720225565 U CN 201720225565U CN 206535050 U CN206535050 U CN 206535050U
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- circuit
- altitude touch
- sensing
- signal
- contactless optical
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Abstract
The utility model discloses a kind of contactless optical electronics altitude touch machine, including adjustable for height support frame, Infrared laser emission device, photoelectric sensing receiver are respectively arranged with the both sides of support frame；Altitude touch display board and photoelectricity are installed to penetrating sensing and controlling system in the side of support frame correspondence Infrared laser emission device；The photoelectricity includes single-chip microcomputer, red laser transmission circuit, opto-electronic receiver circuit, eeprom memory, reset circuit, keyboard, LED display circuit and power circuit composition to penetrating sensing and controlling system；Wherein Infrared laser emission circuit, photoelectric sensing receiving circuit are used to detect the photoelectric sensor being blocked during altitude touch, eeprom memory is used for storing arrange parameter, light-emitting diode display display altitude touch height, keyboard receives user command and handled, and reset circuit pressure single-chip microcomputer returns to the original state of determination.Photoelectricity altitude touch machine of the present utility model has that reaction speed is fast, accuracy rate is high, the features such as height adjustable.
Description
Technical field
The utility model is related to a kind of altitude touch machine, more particularly to a kind of noncontact light formula electronic altitude touch machine, belongs to physical culture device
Material field.
Background technology
At present, the electronic altitude touch machine that in the market is used is relatively more, and most of is all to touch bar sensor.This sensing
Device is using piezoelectric sensing principle is touched, when touching sensor, and the self-resistance or electric capacity of sensor change, so as to cause defeated
Go out the change of voltage, the voltage is finally obtained a result by subsequent treatment.Such sensor is due to self attributes when sensing is touched
Change cause corresponding speed slower.Further, since when people looks as far as one's eyes can see altitude touch arrival peak, differing and surely reaching that sensor can ring
The touching intensity answered, so, test value have the possibility less than actual high jump value, cause test accuracy rate not high enough.Also, by
Impacted in its test mode to touch, life of product can be under some influence.
Utility model content
The purpose of this utility model is that there is provided a kind of anti-the problem of presence for existing touch bar sensor electronic altitude touch machine
Answer speed fast, the high noncontact light formula photoelectron altitude touch machine of accuracy rate.
Noncontact light formula photoelectron altitude touch machine of the present utility model, including including firm banking, adjustable for height support bar
And it is arranged on the support frame on support bar；Infrared laser emission device, photoelectric sensing is respectively arranged with the both sides of support frame to receive
Device；Altitude touch display is installed in the side of support frame correspondence Infrared laser emission device；Infrared laser emission device, photoelectric sensing connect
Receive device and altitude touch display and photoelectricity is connected to penetrating sensing and controlling system by data wire；The photoelectricity is to penetrating sensing and controlling system bag
Include single-chip microcomputer, red laser transmission circuit, opto-electronic receiver circuit, eeprom memory, reset circuit, keyboard, LED display circuit and
Power circuit is constituted；Wherein Infrared laser emission circuit, photoelectric sensing receiving circuit are used to detect the photoelectricity being blocked during altitude touch
Sensor, eeprom memory is used for storing arrange parameter, and light-emitting diode display display altitude touch height, keyboard receives user command simultaneously
Processing, reset circuit pressure single-chip microcomputer returns to the original state of determination.
The Infrared laser emission circuit uses 555 square-wave oscillator circuits.
The photoelectric sensing receiving circuit is by photoelectric sensor, amplifying circuit, sensor passage selection, signal deteching circuit
With phase-locked loop circuit composition；The weak current laser signal that photocell pickoff is received is by amplifying circuit by photoelectric sensor pipe
The photo-signal of output is converted to voltage signal, while being amplified to output signal, then is selected by analog switch CD4051
Select signal and enter phase-locked loop circuit, the frequency that phase-locked loop circuit is received is through signal deteching circuit detection, satisfactory signal
Output state changes, and is then gathered by single-chip microcomputer corresponding port.
Wherein, photoelectric sensor uses phototriode；The amplifying circuit uses TL084 four-operational amplifiers, locks phase
Loop circuit is completed to the detection for the signal for meeting frequency requirement using LM567；Sensor passage selection uses analog switch
CD4051, signal deteching circuit uses single-chip microcomputer 89S52, carries out detection, collection, control and the result calculating processing of signal.
Eeprom memory is used for depositing the parameter of some settings, such as can be set according to the crowd and application method used
A fixed starting altitude is put, this starting altitude just may have in X25045 after setting, even if instrument power source is closed
Close, the value of setting will not also lose, starting altitude will be set when thus being used without electricity on each instrument.
Reset circuit is answered using the reset level of the programmable watchdog time of eeprom memory chip X25045 bands
Position circuit.
Display circuit is the dynamic scan circuit that five LED compositions are driven with max7219 special chips, is controlled by AT89S51
Max7219 processed exports corresponding result of calculation.
During test, tester takeoffs on one side close to photelectric receiver, is blocked with hand before photelectric receiver, so that it may
To complete test.The photoelectric tube quantity being blocked during each high jump test is not one, but many, it is as requested that we need
The photocell pickoff position that acquisition testing highest is blocked is wanted, software uses modular design method, by main program, sensing
Device signal receives the modules such as subprogram, high computational subprogram, display subroutine, keyboard scan processing routine composition.
Utility model has advantages below compared with the prior art：
1st, reaction speed is fast：When the PN of phototriode is tied by light radiation, photoelectric current, resulting light are formed
Raw electric current enters emitter stage by base stage, so as to obtain a signal code being exaggerated equivalent to β times in collector loop, has
There is a very big photoelectric current amplification effect, i.e. very high sensitivity.The response time of general phototriode sensor is micro- in 5-10
It is wonderful, subsequent conditioning circuit and single-chip microcomputer control process are added, the total response speed of the instrument can be within 100 milliseconds.In addition, receiving
Test signal employs photoelectric sensor, detects output light size of current, as long as there is stop irradiation light intensity, sensor is exported immediately
Significantly alter, gathering determination by single-chip microcomputer is blocked highest point sensor, you can calculate altitude touch result.And it is other tactile
The formula sensor of touching all is to change output by after touch, changing the resistance or electric capacity of itself, and the sensor response time typically exists
30 ~ 50 milliseconds, much more slowly than response time of photoelectric sensor, subsequent conditioning circuit processing is complicated, causes the whole instrument response time
With regard to relatively slow.
2nd, accuracy rate is high：Optoelectronic induction sensor is equidistant to be installed, as long as having stop irradiation light intensity, respective sensor output
State change, it is not necessary to feeler, gathers determination by single-chip microcomputer and is blocked highest point sensor, you can finally tied
Really, without tactile sensor to the requirement in terms of sensor touch intensity etc. factor.
3rd, height adjustable.Support frame of the present utility model is made up of basic rod and adjustment frame, and support bar rises according to setting
The height that begins can be adjusted relative to above and below basic rod.The height adjustable of altitude touch machine makes it have very wide use scope.
Brief description of the drawings
Fig. 1 is the appearance assumption diagram of the utility model photoelectron altitude touch machine.
Fig. 2 is photoelectricity to penetrating the structured flowchart of sensing and controlling system.
Fig. 3 is photoelectricity to penetrating the laser transmission circuit structure chart of sensing and controlling system.
Fig. 4 is the amplification circuit structure figure of opto-electronic receiver circuit.
Fig. 5 is the signal deteching circuit structure chart of opto-electronic receiver circuit.
Fig. 6 is photoelectricity to penetrating the display circuit structure chart of sensing and controlling system.
Fig. 7 is photoelectricity to penetrating the circuit construction of electric power figure of sensing and controlling system.
Fig. 8 is photoelectricity to penetrating the reset circuit structure chart of sensing and controlling system.
Embodiment
Surface structure to photoelectron altitude touch machine of the present utility model and circuit control structure and work with reference to the accompanying drawings
Principle and application method are described further.
First, surface structure
Reference picture 1, including firm banking 9, adjustable for height support bar and the support frame 11 that is arranged on support bar, in branch
The both sides of support 11 are respectively arranged with Infrared laser emission device 1, photoelectric sensing receiver 2；In support frame correspondence infrared laser hair
The side of emitter is provided with altitude touch display 3.Wherein, adjustable for height support bar is made up of basic rod 6 and adjusting lever 4, adjustment
Bar 4 is fixedly connected on the top of basic rod 6, and basic rod 6 with adjusting lever 4 by set screw 5；Basic rod 6 is provided with control
Switch, controlling switch 8 connects Infrared laser emission device 1, photoelectric sensing receiver 2 and altitude touch display 3 by power line 7；Control
System switch 8 connects photoelectricity to penetrating sensing and controlling system 10 by data wire.
Infrared laser emission device is with 8 laser line generators, it is ensured that the adjustable in length of each laser reaches 8-10 centimetres, this
Sample, each laser rays can just irradiate 8 photoelectric receiving tubes, and 64 photoelectric receiving tubes need 8 laser line generators altogether.
Photoelectric sensing receiver is photoelectric receiving tube, and system has 64 photoelectric receiving tubes, and height per cm installs one,
Can test scope be 0.64 meter.
Photoelectricity is controlled to penetrating sensing and controlling system to whole system and calculates result.
Altitude touch display board is used to show the height calculated according to sensing station.
2nd, electricity is to penetrating sensing and controlling system and circuit structure
Photoelectricity includes single-chip microcomputer, red laser transmission circuit, opto-electronic receiver circuit, EEPROM storages to penetrating sensing and controlling system
Device, reset circuit, keyboard, LED display circuit and power circuit composition（See Fig. 2）；Wherein Infrared laser emission circuit, photoelectric transfer
Sense receiving circuit is used to detect the photoelectric sensor being blocked during altitude touch, and eeprom memory is used for storing arrange parameter, and LED shows
Show device display altitude touch height, keyboard receives user command and handled, and reset circuit pressure single-chip microcomputer returns to the initial shape of determination
State.
1st, red laser transmission circuit
The consistent square wave frequency circuit of dutycycle, its circuit structure such as Fig. 3 can be produced using 555.
2nd, photoelectric sensing receiving circuit
It is made up of photoelectric sensor, amplifying circuit, sensor passage selection, signal deteching circuit and phase-locked loop circuit；Light
The photo-signal that the weak current laser signal that fulgurite sensor is received is exported photoelectric sensor pipe by amplifying circuit turns
Voltage signal is changed to, while being amplified to output signal, then selects coherent signal to enter lock phase by analog switch CD4051
Loop circuit, the frequency that phase-locked loop circuit is received carries out detection, and satisfactory signal output state changes, then by list
Piece machine corresponding port is gathered.
Photoelectric sensor uses phototriode.Because the photoelectric sensor quantity that the system is used is relatively more, single-chip microcomputer
I/O mouth resource-constraineds, so every 8 sensors are connected to one I/O mouthfuls by analog switch, can thus pass through monolithic
Machine selects different analog switch passages to gather the state of different sensors.Analog switch selects CD4051, according to being connected to
Three control signals A, B, C state on single-chip microcomputer, select the follow-up detection of 1 road signal progress and adopt from 8 tunnel input signals
Collection.
Amplifying circuit uses TL084 four-operational amplifiers；Its circuit structure is shown in Fig. 4.Each photoelectric receiving tube is equipped with one
Individual such amplifying circuit, has 64 reception photoelectric tubes, so having 64 amplifying circuits, by 16 four high guaily units within the system
TL084 is completed.
Phase-locked loop circuit uses LM567, and the centre frequency of its internal voltage controlled oscillator is that locking bandwidth is relevant with C3.By
It is 1kHz in Laser emission driving frequency, adjustment related elements make the centre frequency of phaselocked loop be 1kHz, such phaselocked loop LM567
Only respond the signal of the frequency, it is to avoid the interference of other frequency signals and natural light.Signal deteching circuit uses single-chip microcomputer
89S52, its circuit structure is shown in Fig. 5.After photocell pickoff receives laser signal, the signal after being amplified by amplifier leads to
Analog switch respective channel is crossed into phaselocked loop detection, if frequency is 1kHz, monolithic is sent from 8 pin output respective change level
Machine corresponding ports, single-chip microcomputer calculates the sensor height being blocked according to the port level state detected.
3rd, single-chip microcomputer, eeprom memory and reset circuit
Using AT89S51 single-chip microcomputers；AT89S51 has a special external pin RESET, and outside can be defeated by this pin
Entering a positive pulse makes monolithic processor resetting.
Eeprom memory is used for depositing the parameter of some settings, such as can be set according to the crowd and application method used
A fixed starting altitude is put, this starting altitude just may have in X25045 after setting, even if instrument power source is closed
Close, the value of setting will not also lose, starting altitude will be set when thus being used without electricity on each instrument.
The reset circuit that the design is used is answering for the programmable watchdog time of eeprom memory chip X25045 bands
The reset circuit of bit level, it is ensured that system reliability service.Shown in its circuit diagram 8.It is so-called to reset, exactly force SCM system extensive
The multiple original state to determination, and system is started working again from original state.
4th, display circuit
Display circuit is the dynamic scan circuit that five LED compositions are driven with max7219 special chips, is controlled by AT89S51
Max7219 processed exports corresponding result of calculation.Its circuit structure is shown in Fig. 6.If the final function of LED2 charactrons is without using can be with
Cancel.
6th, power circuit
For convenience, the design uses 12V direct current supplys, because amplifying circuit is relatively more, so electric with DC-DC
Source module, input：12V；Output：+5V/-5V.Power circuit is as shown in Figure 7.
7th, keyboard
Receive user command and handle.Because altitude touch machine is directed to different crowd, so highly indefinite, set key can basis
The actual crowd used, sets the minimum benchmark altitude touch machine height of altitude touch machine, after this height value is set, can exist
In eeprom memory, it will not also change even if power-off.
In the design, the photoelectric tube quantity being blocked during each high jump test is not one, but many, as requested
We need the photocell pickoff position that acquisition testing highest is blocked, and software uses modular design method, by main journey
Sequence, sensor signal receive the modules such as subprogram, high computational subprogram, display subroutine, keyboard scan processing routine composition.
Because assembly language program(me) has the time that higher efficiency and easy Exact calculation program are run, and the program of the altitude touch machine does not have
There is too complicated calculating, so control program can be using assembler language programming.
After system electrification, system initialization first, when sensor is not blocked, all the sensors all export high electricity
Flat, at this moment P0 mouthfuls of value is hexadecimal number 0xff, when there is sensor to be blocked, and the value changes, at this moment, in a buffer area
Analog switch control signal A/B/C value and the corresponding P0 of control signal value are deposited in order, when P0 values are changed into again
During 0xff, illustrate once now to terminate.According to the number of caching, height can just be calculated by comparing the sensing station of extreme higher position
Degree.
During test, tester here takeoffs close to opto-electronic receiver, is blocked with hand before photoelectric receiving tube, it is possible to complete
Into test.
Claims (10)
1. a kind of contactless optical electronics altitude touch machine, including firm banking（9）, adjustable for height support bar and be arranged on support bar
On support frame（11）, it is characterised in that：In support frame（11）Both sides be respectively arranged with Infrared laser emission device（1）, photoelectricity
Sensing receiver（2）；Altitude touch display is installed in the side of support frame correspondence Infrared laser emission device（3）；Infrared laser is sent out
Emitter, photoelectric sensing receiver and altitude touch display connect photoelectricity to penetrating sensing and controlling system by data wire（10）；The light
Electricity is to penetrating sensing and controlling system（10）Including single-chip microcomputer, red laser transmission circuit, opto-electronic receiver circuit, eeprom memory is multiple
Position circuit, keyboard, LED display circuit and power circuit composition；Wherein Infrared laser emission circuit, photoelectric sensing receiving circuit are used
The photoelectric sensor being blocked when altitude touch is detected, eeprom memory is used for storing arrange parameter, light-emitting diode display display altitude touch
Highly, keyboard receives user command and handled, and reset circuit pressure single-chip microcomputer returns to the original state of determination.
2. contactless optical electronics altitude touch machine as claimed in claim 1, it is characterised in that：The adjustable for height support bar is by base
Plinth bar（6）And adjusting lever（4）Composition, adjusting lever（4）In basic rod（6）Top, and basic rod（6）And adjusting lever（4）Pass through
Set screw（5）It is fixedly connected；Basic rod（6）It is provided with controlling switch（8）；Infrared laser emission device（1）, photoelectric sensing receive
Device（2）And altitude touch display（3）Pass through controlling switch（8）And data wire connects photoelectricity to penetrating sensing and controlling system（12）.
3. contactless optical electronics altitude touch machine as claimed in claim 1, it is characterised in that：The photoelectric sensing receiving circuit is by light
Electric transducer, amplifying circuit, sensor passage selection, signal deteching circuit and phase-locked loop circuit composition；Photocell pickoff connects
The photo-signal that photoelectric sensor pipe is exported is converted to voltage signal by the weak current laser signal received by amplifying circuit,
Output signal is amplified simultaneously, then selects corresponding analog switch selection signal to enter phaselocked loop electricity by sensor passage
Road, the frequency that phase-locked loop circuit is received carries out detection through signal, and satisfactory signal output state changes, Ran Houyou
Single-chip microcomputer corresponding port is gathered.
4. contactless optical electronics altitude touch machine as claimed in claim 3, it is characterised in that：The photoelectric sensor is phototriode
Pipe.
5. contactless optical electronics altitude touch machine as claimed in claim 3, it is characterised in that：The amplifying circuit uses TL084 tetra-
Operational amplifier.
6. contactless optical electronics altitude touch machine as claimed in claim 3, it is characterised in that：The phase-locked loop circuit uses LM567.
7. contactless optical electronics altitude touch machine as claimed in claim 3, it is characterised in that：The signal deteching circuit uses monolithic
Machine 89S52.
8. contactless optical electronics altitude touch machine as claimed in claim 3, it is characterised in that：Sensor passage selects corresponding simulation
Switch as CD4051.
9. contactless optical electronics altitude touch machine as claimed in claim 1, it is characterised in that：The display circuit is to use max7219
Special chip drives the dynamic scan circuit of five LED compositions, and corresponding result of calculation is exported by AT89S51 controls max7219.
10. contactless optical electronics altitude touch machine as claimed in claim 1, it is characterised in that：Reset circuit is stored using EEPROM
The reset circuit of the reset level of the programmable watchdog time of device chip X25045 bands.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720225565.9U CN206535050U (en) | 2017-03-09 | 2017-03-09 | A kind of contactless optical electronics altitude touch machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720225565.9U CN206535050U (en) | 2017-03-09 | 2017-03-09 | A kind of contactless optical electronics altitude touch machine |
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| Publication Number | Publication Date |
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| CN206535050U true CN206535050U (en) | 2017-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720225565.9U Expired - Fee Related CN206535050U (en) | 2017-03-09 | 2017-03-09 | A kind of contactless optical electronics altitude touch machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106693270A (en) * | 2017-03-09 | 2017-05-24 | 西北师范大学 | Non-contact photoelectron height-touching instrument |
-
2017
- 2017-03-09 CN CN201720225565.9U patent/CN206535050U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106693270A (en) * | 2017-03-09 | 2017-05-24 | 西北师范大学 | Non-contact photoelectron height-touching instrument |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171003 Termination date: 20200309 |
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| CF01 | Termination of patent right due to non-payment of annual fee |