CN205910209U - Speed switch based on laser imaging technique - Google Patents
Speed switch based on laser imaging technique Download PDFInfo
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- CN205910209U CN205910209U CN201620834952.8U CN201620834952U CN205910209U CN 205910209 U CN205910209 U CN 205910209U CN 201620834952 U CN201620834952 U CN 201620834952U CN 205910209 U CN205910209 U CN 205910209U
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- Prior art keywords
- laser
- speed switch
- technique
- uut
- switch based
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Abstract
The utility model provides a speed switch based on laser imaging technique. Speed switch based on laser imaging technique includes laser formation of image subassembly, digital signal processor, microcontroller and output circuit, laser formation of image subassembly digital signal processor microcontroller with output circuit connects gradually the setting, laser formation of image subassembly includes the imaging sensor and the control chip of laser source, lens subassembly, image, control chip with the setting is connected to the laser source electricity, imaging sensor with digital signal processor communication connection, the laser that the laser source sent passes through the lens subassembly guide is shone the component to be detected surface, imaging sensor catches the image on component to be detected surface.
Description
Technical field
It is related to a kind of speed switch based on technique of laser imaging this utility model.
Background technology
Speed switch is a kind of basic speed monitoring equipment, adopts electromagnetic induction principle to produce existing speed switch more
Pulse signal, this pulse signal frequency and predetermined frequency are compared by sensor, when the pulse frequency of monitored part is less than
Switch as open mode during speed switch setpoint frequency；When the pulse frequency of monitored part is more than speed switch setpoint frequency
Switch as closure state.
But, the speed switch major defect using electromagnetic induction principle has: one, cannot monitor linear velocity, can only monitor
Rotary speed；2nd, monitored rotary shaft must have metal lug, to produce pulse signal during rotation.
So the typical application scenarios of existing speed switch are as shown in Figure 1, it can be seen that this kind of speed switch is only
It is only applicable to monitor rotary speed, require monitored part to be necessary for metal material, the metal tooth depth to rotary shaft and tooth simultaneously
Width all has strict demand.Under a lot of engineer applied occasions, the forms of motion of monitored object is linear motion, and this kind of speed is opened
Function cannot be realized in pass；Rotary shaft is nonmetallic, or when physical size is unsatisfactory for requiring in figure one, this kind of speed switch is also no
Method realizes function.Just because of the disadvantages described above of induction speed switch, limit its application in industrial circle.
Therefore, it is necessary to provide a kind of speed switch using contactless imaging technique based on technique of laser imaging.
Utility model content
The purpose of this utility model be to provide a kind of using contactless imaging technique based on technique of laser imaging
Speed switch.
The technical solution of the utility model is as follows: a kind of speed switch based on technique of laser imaging, including for treating
Survey laser imaging assembly, digital signal processor, the use for obtaining described UUT exercise data that part is imaged
In the microcontroller judging UUT motion conditions with for the output circuit to the outside output signal of telecommunication, described laser imaging
Assembly, described digital signal processor, described microcontroller and described output circuit are sequentially connected setting；Described laser imaging group
Part is included for providing the lasing light emitter of laser, the lens subassembly for guided laser transmission, being used for absorbing what described laser was formed
The imaging sensor of image and the control chip for controlling described operation of laser sources power, described control chip and described laser
Source electrical connection setting, described imaging sensor and described digital signal processor communication connection, the laser that described lasing light emitter sends
Guide and be radiated at described UUT surface by described lens subassembly, described imaging sensor catches described UUT table
The image in face, and described image is sent to described digital signal processor.
Preferably, described lens subassembly includes opposing parallel spaced first plane mirror and the second plane mirror, and
With the concavees lens of described imaging sensor relative spacing setting, the laser that described first plane mirror is sent with described lasing light emitter is in
45 ° of angle settings, and described laser reflexes to described second plane mirror through described first plane mirror, and described second plane mirror will
Described laser with surface from 30 ° of corner reflections to described UUT.
Preferably, described concavees lens receive the reflection laser perpendicular to described UUT surface, and described reflection is swashed
Light converges to described imaging sensor.
Preferably, described digital signal processor is connected with described micro-controller communications by spi communication interface.
Preferably, described output circuit includes being sequentially connected electrically the photoelectrical coupler of setting and drives audion, described light
Electric coupler electrically connects setting with described microcontroller, and described driving audion electrically connects setting with extraneous relay.
Preferably, the outside of described microcontroller is additionally provided with for realizing adjusting the rotational potentiometer of preset speed, institute
State rotational potentiometer and setting is electrically connected with described microcontroller by ad transducer.
Preferably, described lasing light emitter is laser diode.
The beneficial effects of the utility model are: the described speed switch based on technique of laser imaging adopts contactless sharp
Photoimaging technology, the linear motion of UUT or rotary motion all can be monitored to, simultaneously the material to UUT
There is no particular/special requirement with surface texture, therefore greatly extend purposes in industrial circle for the speed switch.
Brief description
Fig. 1 is the structural representation of the induction speed switch of prior art；
Fig. 2 is the system structure diagram of the speed switch based on technique of laser imaging that this utility model provides；
Fig. 3 is the structured flowchart of the speed switch shown in Fig. 2 based on technique of laser imaging；
Fig. 4 is the structural representation shown in Fig. 2 based on laser imaging assembly in the speed switch of technique of laser imaging；
Fig. 5 is the structural representation shown in Fig. 2 based on microcontroller in the speed switch of technique of laser imaging；
Fig. 6 is the structural representation shown in Fig. 2 based on output circuit in the speed switch of technique of laser imaging.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.It should be appreciated that specific embodiment described herein is only in order to explain
This utility model, is not used to limit this utility model.
The description of specific distinct unless the context otherwise, the element in this utility model and assembly, quantity both can be single
Presented in it is also possible to presented in multiple, this utility model is not defined to this.It is appreciated that institute herein
The term "and/or" using is related to and covers one of associated Listed Items or one or more of any and be possible to
Combination.
Please refer to Fig. 2 and Fig. 3, Fig. 2 is the speed switch based on technique of laser imaging that this utility model provides
System structure diagram；Fig. 3 is the structured flowchart of the speed switch shown in Fig. 2 based on technique of laser imaging.This utility model is real
The laser imaging group being included based on the speed switch 100 of technique of laser imaging for being imaged to UUT of example offer is provided
Part 10, for obtaining the digital signal processor 20 of described UUT exercise data, be used for judging UUT motion conditions
Microcontroller 30 and for the output circuit 40 to the outside output signal of telecommunication, described laser imaging assembly 10, described numeral letter
Number processor 20, described microcontroller 30 and described output circuit 40 are sequentially connected setting.
Refer to Fig. 4, described laser imaging assembly 10 include for laser is provided lasing light emitter 11, for guided laser pass
Defeated lens subassembly 12, for absorbing the imaging sensor 13 of image that described laser formed and being used for controlling described lasing light emitter 10
The control chip 14 of operating power.Wherein, described control chip 14 electrically connects setting, described imaging sensing with described lasing light emitter 11
Device 13 is communicated to connect with described digital signal processor 20.Preferably, described lasing light emitter 11 is laser diode, described control core
Piece 14 is single-chip microcomputer.
In described laser imaging assembly 10, the laser that described lasing light emitter 11 sends is guided simultaneously by described lens subassembly 12
It is radiated at described UUT surface, described imaging sensor 13 catches the image on described UUT surface, and by described figure
As sending to described digital signal processor 20.
In the present embodiment, described lens subassembly 12 includes opposing parallel spaced first plane mirror 121 and second
Plane mirror 122, and spaced concavees lens 123 opposing parallel with described imaging sensor 13.
Wherein, the laser that described first plane mirror 121 is sent with described lasing light emitter is in 45 ° of angle settings, and described sharp
Light reflexes to described second plane mirror 122 through described first plane mirror 121, and described second plane mirror 122 is by described laser with 30 °
Corner reflection is to the surface of described UUT.And, described concavees lens 123 receive the reflection perpendicular to described UUT surface
Laser, and by described reflection laser aiming to described imaging sensor 13, so that described imaging sensor 13 is based on laser
Imaging technique obtains the laser image on described UUT surface.
The image sequence of the laser image on UUT surface described in described imaging sensor 13 Real-time Collection.Described image
Sequence is arranged in order sequentially in time, thus reflecting the moving situation of described UUT.Selectively, described imaging sensing
Device 13 can be cmos imageing sensor or ccd imageing sensor.
Described digital signal processor 20 receives the described image sequence that described imaging sensor 13 sends, and swashs to described
The imaging sequence of light image is analyzed process sequentially in time, thus judging the motion conditions of described UUT,
And then obtain the velocity information of described UUT.
In the present embodiment, described microcontroller 30 passes through spi communication interface 50 and described digital signal processor 20 leads to
Letter connects.The velocity information of described UUT is sent by described digital signal processor 20 by described spi communication interface 50
To described microcontroller 30.
And, the preset speed of described velocity information and described speed switch 100 is contrasted by described microcontroller 30,
And adjust the working condition of described speed switch 100: if described UUT velocity information less than described speed switch 100
Preset speed, then described speed switch 100 be open mode；If described UUT velocity information more than described speed
The preset speed of switch 100, then described speed switch 100 is closed mode.Refer to Fig. 5, be shown in Fig. 2, to be based on laser imaging
The structural representation of microcontroller in the speed switch of technology.Preferably, described microcontroller 30 is mcu unit.
Further, in order to adjust the preset speed of described speed switch 100, the outside of described microcontroller 30 is acceptable
It is provided with for realizing adjusting the rotational potentiometer of preset speed, it is micro- with described that described rotational potentiometer passes through ad transducer 302
Controller 30 electrical connection setting, thus realize the regulation of described preset speed.
Refer to Fig. 6, described output circuit 40 includes being sequentially connected electrically the photoelectrical coupler 41 of setting and drives audion
42.Wherein, described photoelectrical coupler 41 electrically connects setting, described driving audion 42 and extraneous relay with described microcontroller 30
Device electrical connection setting.In the present embodiment, described output circuit 40 can be defeated under the control action of described microcontroller 30
Go out the signal of telecommunication thus the movement velocity of described UUT is adjusted by described outer relay.
Compared to prior art, what this utility model provided is connect using non-based on the speed switch 100 of technique of laser imaging
Touch technique of laser imaging, the linear motion of UUT or rotary motion all can be monitored to, simultaneously to UUT
Material and surface texture there is no particular/special requirement, therefore greatly extend purposes in industrial circle for the speed switch.
It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, this practicality can be realized in other specific forms new
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, this practicality is new
The scope of type is limited by claims rather than described above, it is intended that the containing of equivalency that will fall in claim
All changes in justice and scope are included in this utility model.Any reference in claim should not be considered as limiting
Involved claim.
Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment only wraps
Containing an independent technical scheme, only for clarity, those skilled in the art should for this narrating mode of description
Using description as an entirety, the technical scheme in each embodiment can also form those skilled in the art through appropriately combined
Understandable other embodiment.
Claims (7)
1. a kind of speed switch based on technique of laser imaging it is characterised in that: include for being imaged to UUT
Laser imaging assembly, for obtaining the digital signal processor of described UUT exercise data, being used for judging that UUT is transported
The emotionally microcontroller of condition and the output circuit for outside is exported with the signal of telecommunication, described laser imaging assembly, described numeral letter
Number processor, described microcontroller and described output circuit are sequentially connected setting；
Described laser imaging assembly is included for providing the lasing light emitter of laser, the lens subassembly for guided laser transmission, being used for
Absorb the imaging sensor of image and the control chip for controlling described operation of laser sources power that described laser is formed, described
Control chip electrically connects setting, described imaging sensor and described digital signal processor communication connection, institute with described lasing light emitter
State the laser that lasing light emitter sends to guide by described lens subassembly and be radiated at described UUT surface, described imaging sensor
Catch the image on described UUT surface, and described image is sent to described digital signal processor.
2. the speed switch based on technique of laser imaging according to claim 1 it is characterised in that: described lens subassembly bag
Include opposing parallel spaced first plane mirror and the second plane mirror, and with the setting of described imaging sensor relative spacing
Concavees lens, the laser that described first plane mirror is sent with described lasing light emitter is in the setting of 45 ° of angles, and described laser is through described the
One plane mirror reflexes to described second plane mirror, described second plane mirror by described laser with 30 ° of corner reflections to described portion to be measured
The surface of part.
3. the speed switch based on technique of laser imaging according to claim 2 it is characterised in that: described concavees lens receive
Perpendicular to the reflection laser on described UUT surface, and described reflection laser is converged to described imaging sensor.
4. the speed switch based on technique of laser imaging according to claim 1 it is characterised in that: at described digital signal
Reason device is connected with described micro-controller communications by spi communication interface.
5. the speed switch based on technique of laser imaging according to claim 1 it is characterised in that: described output circuit bag
Include the photoelectrical coupler being sequentially connected electrically setting and drive audion, described photoelectrical coupler is electrically connected with described microcontroller and sets
Put, described driving audion electrically connects setting with extraneous relay.
6. the speed switch based on technique of laser imaging according to claim 1 it is characterised in that: described microcontroller
Outside be additionally provided with for realize adjust preset speed rotational potentiometer, described rotational potentiometer pass through ad transducer with described
Microcontroller electrical connection setting.
7. the speed switch based on technique of laser imaging according to claim 1 it is characterised in that: described lasing light emitter is sharp
Optical diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620834952.8U CN205910209U (en) | 2016-08-03 | 2016-08-03 | Speed switch based on laser imaging technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620834952.8U CN205910209U (en) | 2016-08-03 | 2016-08-03 | Speed switch based on laser imaging technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205910209U true CN205910209U (en) | 2017-01-25 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620834952.8U Expired - Fee Related CN205910209U (en) | 2016-08-03 | 2016-08-03 | Speed switch based on laser imaging technique |
Country Status (1)
| Country | Link |
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| CN (1) | CN205910209U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106124794A (en) * | 2016-08-03 | 2016-11-16 | 南京信息工程大学 | A kind of speed switch based on technique of laser imaging and speed detection method |
| WO2019242260A1 (en) * | 2018-06-22 | 2019-12-26 | 深圳市润沃自动化工程有限公司 | Laser reflection imaging apparatus |
-
2016
- 2016-08-03 CN CN201620834952.8U patent/CN205910209U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106124794A (en) * | 2016-08-03 | 2016-11-16 | 南京信息工程大学 | A kind of speed switch based on technique of laser imaging and speed detection method |
| WO2019242260A1 (en) * | 2018-06-22 | 2019-12-26 | 深圳市润沃自动化工程有限公司 | Laser reflection imaging apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170125 Termination date: 20180803 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |