CN208334643U - A kind of laser range finder with the interference of anti-sunlight - Google Patents
A kind of laser range finder with the interference of anti-sunlight Download PDFInfo
- Publication number
- CN208334643U CN208334643U CN201820648098.5U CN201820648098U CN208334643U CN 208334643 U CN208334643 U CN 208334643U CN 201820648098 U CN201820648098 U CN 201820648098U CN 208334643 U CN208334643 U CN 208334643U
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- sunlight
- interference
- laser
- light source
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- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The utility model provides a kind of laser range finder with the interference of anti-sunlight, including laser light source, beam-expanding system, light source sampling system, focusing system, detector, single-chip microcontroller, communicating circuit, photoelectric isolating circuit, host computer, anti-sunlight interference system and high-frequency band pass filter circuit, host computer generates laser pulse through communicating circuit and photoelectric isolating circuit control single chip computer triggering laser light source, and laser pulse irradiates measured target after beam-expanding system amplifies beam spot diameter,；The laser pulse line focus system of measured target reflection filters sunlight by anti-sunlight interference system after focusing and interferes, the optical signal that anti-sunlight interference system transmits is converted into electric signal by detector, is sent single-chip microcontroller to after the processing of high-frequency band pass filter circuit and is obtained ranging data.The utility model reduces influence of the sunlight to laser pulse signal using high transmittance optical filter, while reducing sunlight using high-frequency band pass filter circuit and being converted into the interference after electric signal by detector.
Description
Technical field
The utility model relates to a kind of laser range finders, and in particular to a kind of laser ranging with the interference of anti-sunlight
Machine belongs to laser ranging technique field.
Background technique
Laser range finder is the instrument that Accurate Determining is carried out using the distance of some parameters on target of modulation laser.Pulse
Formula laser range finder is to project pulse laser beam a branch of or that a sequence is of short duration to target at work, receives mesh by photoelectric cell
The laser beam of reflection is marked, timer measures laser beam from the received time is emitted to, calculates from rangefinder range-to-go.
Constantly, sunlight is bigger to the interference of laser for outdoor application laser range finder, when sunlight is very strong at noon, sun
Light is especially apparent the interference of laser range finder, causes the reduction of laser range finder measurement accuracy and range.
Therefore, developing a kind of laser range finder with the interference of anti-sunlight is very important, and the utility model
Also there is important application prospect.
Utility model content
To solve the deficiencies in the prior art, the purpose of this utility model is to provide a kind of swashing with the interference of anti-sunlight
Ligh-ranging machine.
In order to achieve the above objectives, the utility model adopts the following technical solutions:
It is a kind of with anti-sunlight interference laser range finder, including laser light source, beam-expanding system, light source sampling system,
Focusing system, detector, single-chip microcontroller, communicating circuit, photoelectric isolating circuit and host computer, further include anti-sunlight interference system and
High-frequency band pass filter circuit,
The host computer controls the single-chip microcontroller through the communicating circuit and the photoelectric isolating circuit and triggers the laser
Light source generates laser pulse, and laser pulse irradiates measured target after the beam-expanding system amplifies beam spot diameter,；The light source is adopted
Sample system samples the laser pulse that the laser 1 generates and the laser pulse that measured target reflects from the laser beam expanding system
It filters sunlight by the anti-sunlight interference system after focusing system focusing together to interfere, the detector is by institute
The optical signal for stating anti-sunlight interference system transmission is converted into electric signal, sends to after high-frequency band pass filter circuit processing
The single-chip microcontroller processing obtains ranging data；Laser range finder uses high-frequency laser pulse, and sunlight is due to always existing
So its signal frequency converted by detector is filtered out into 0 or low frequency electrical signal by high-frequency band pass filter circuit 11.
Laser range finder above-mentioned with the interference of anti-sunlight, the frequency for the laser pulse that the laser light source generates are
0.5GHz to 2GHz.
Laser range finder above-mentioned with the interference of anti-sunlight, the laser wave for the laser pulse that the laser light source generates
Long adjustable extent is 1.0 nanometers to 4.0 nanometers.
Laser range finder above-mentioned with the interference of anti-sunlight, the anti-sunlight interference system are optical filter,
Sunlight wavelength is from ultraviolet light to infrared ray, and laser pulse is 1.0 nanometers to 4.0 nanometers of wavelength, and sunlight is in laser pulse
The intensity of locating wave-length coverage is much smaller than laser pulse.
Laser range finder above-mentioned with the interference of anti-sunlight, further includes: amplifying circuit, for amplifying the high frequency band
The electric signal of bandpass filter circuit output.
Laser range finder above-mentioned with the interference of anti-sunlight, the communication interface of the communicating circuit include but is not limited to
The following terms: RS485 interface, RS232 interface, CAN interface.
The utility model has the beneficial effect that
(1) influence of the sunlight to laser pulse signal is reduced using high transmittance optical filter, while uses high frequency
Bandwidth-limited circuit reduces sunlight and is converted into the interference after electric signal by detector；
(2) rich interface, communicating circuit support RS232 interface, RS485 interface and CAN bus interface, letter easy to use
It is single.
Detailed description of the invention
Fig. 1 is that the composition of a specific embodiment of the laser range finder with the interference of anti-sunlight of the utility model shows
It is intended to.
Wherein:
1- laser light source 2- beam-expanding system
3- light source sampling system 4- focusing system
5- detector 6- single-chip microcontroller
7- communicating circuit 8- photoelectric isolating circuit
The anti-sunlight interference system of 9- host computer 10-
11- high-frequency band pass filter circuit 12- amplifying circuit.
Specific embodiment
Specific introduce is made to the utility model below in conjunction with the drawings and specific embodiments.
Referring to Fig.1, the laser range finder with the interference of anti-sunlight of the utility model, including laser light source 1, expand and be
System 2, light source sampling system 3, focusing system 4, detector 5, single-chip microcontroller 6, communicating circuit 7, photoelectric isolating circuit 8 and host computer 9,
It further include anti-sunlight interference system 10 and high-frequency band pass filter circuit 11,
Host computer 9 generates laser arteries and veins through communicating circuit 7 and 8 control single chip computer 6 of photoelectric isolating circuit triggering laser light source 1
Punching, laser pulse irradiate measured target after beam-expanding system 2 amplifies beam spot diameter,；Light source sampling system 3 is from laser beam expanding system 2
The laser pulse of laser pulse and measured target reflection that sampling laser light source 1 generates passes through after line focus system 4 focuses together
Anti- sunlight interference system 10 filters sunlight interference, and the optical signal that detector 5 transmits anti-sunlight interference system 10 is converted
At electric signal, sends the processing of single-chip microcontroller 6 to after the processing of high-frequency band pass filter circuit 11 and obtain ranging data.
As a preferred solution, the frequency for the laser pulse that laser light source 1 generates is 0.5GHz to 2GHz, preferably
1.0GHz。
As a preferred solution, the optical maser wavelength adjustable extent for the laser pulse that laser light source 1 generates is received for 1.0
Rice is to 4.0 nanometers, and preferably 1.6 nanometers.
As a preferred solution, anti-sunlight interference system 10 is optical filter.
As a preferred solution, further includes: amplifying circuit 12, for amplifying the output of high-frequency band pass filter circuit 11
Electric signal.
As a preferred solution, the communication interface of communicating circuit 7 includes but is not limited to the following terms: RS485 interface,
RS232 interface, CAN interface.
It should be noted that the above is only the preferred embodiment of the present invention, it is practical not new to limit this
Type, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection scope of utility model.
Claims (6)
1. a kind of laser range finder with the interference of anti-sunlight, including laser light source (1), beam-expanding system (2), light source sampling system
System (3), focusing system (4), detector (5), single-chip microcontroller (6), communicating circuit (7), photoelectric isolating circuit (8) and host computer (9),
It is characterized in that, further include anti-sunlight interference system (10) and high-frequency band pass filter circuit (11),
The host computer (9) controls described in single-chip microcontroller (6) triggering through the communicating circuit (7) and photoelectric isolating circuit (8)
Laser light source (1) generates laser pulse, and laser pulse irradiates measured target after the beam-expanding system (2) amplify beam spot diameter,；
The light source sampling system (3) samples the laser pulse that the laser light source (1) generates from the laser beam expanding system (2), and
The laser pulse of measured target reflection passes through the anti-sunlight interference system (10) after the focusing system (4) focus together
Sunlight interference is filtered, the optical signal that the anti-sunlight interference system (10) is transmitted is converted into telecommunications by the detector (5)
Number, it sends the single-chip microcontroller (6) processing to after the high-frequency band pass filter circuit (11) processing and obtains ranging data.
2. the laser range finder according to claim 1 with the interference of anti-sunlight, which is characterized in that the laser light source
(1) frequency of the laser pulse generated is 0.5GHz to 2GHz.
3. the laser range finder according to claim 1 with the interference of anti-sunlight, which is characterized in that the laser light source
(1) the optical maser wavelength adjustable extent of the laser pulse generated is 1.0 nanometers to 4.0 nanometers.
4. the laser range finder according to claim 1 with the interference of anti-sunlight, which is characterized in that the anti-sunlight
Interference system (10) is optical filter.
5. the laser range finder according to claim 1 with the interference of anti-sunlight, which is characterized in that further include: amplification
Circuit (12), for amplifying the electric signal of high-frequency band pass filter circuit (11) output.
6. the laser range finder according to claim 1 with the interference of anti-sunlight, which is characterized in that the communicating circuit
(7) communication interface includes but is not limited to the following terms: RS485 interface, RS232 interface, CAN interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820648098.5U CN208334643U (en) | 2018-05-03 | 2018-05-03 | A kind of laser range finder with the interference of anti-sunlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820648098.5U CN208334643U (en) | 2018-05-03 | 2018-05-03 | A kind of laser range finder with the interference of anti-sunlight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208334643U true CN208334643U (en) | 2019-01-04 |
Family
ID=64779872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820648098.5U Expired - Fee Related CN208334643U (en) | 2018-05-03 | 2018-05-03 | A kind of laser range finder with the interference of anti-sunlight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208334643U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108279423A (en) * | 2018-05-03 | 2018-07-13 | 江苏亮点光电科技有限公司 | A kind of laser range finder with the interference of anti-sunlight |
-
2018
- 2018-05-03 CN CN201820648098.5U patent/CN208334643U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108279423A (en) * | 2018-05-03 | 2018-07-13 | 江苏亮点光电科技有限公司 | A kind of laser range finder with the interference of anti-sunlight |
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| 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: 20190104 Termination date: 20190503 |
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| CF01 | Termination of patent right due to non-payment of annual fee |