CN216595519U - Multi-channel laser radar capable of being installed and automatically keeping parallel - Google Patents
Multi-channel laser radar capable of being installed and automatically keeping parallel Download PDFInfo
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- CN216595519U CN216595519U CN202122778533.0U CN202122778533U CN216595519U CN 216595519 U CN216595519 U CN 216595519U CN 202122778533 U CN202122778533 U CN 202122778533U CN 216595519 U CN216595519 U CN 216595519U
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Abstract
The utility model provides a multi-channel mounted laser radar capable of automatically keeping parallel, which comprises a shell, wherein the top of the shell is provided with a window, an optical part and an electric part which are arranged up and down are arranged in the shell, the optical part comprises a laser emitting mechanism, a signal receiving mechanism, a photoelectric detector and a cubic reference prism, the laser emitting direction of a laser is parallel to or vertical to the signal receiving direction of the signal receiving mechanism and the detection direction of the photoelectric detector, and the cubic reference prism faces the window and is used for being in signal connection with equipment outside the shell. The utility model effectively solves the technical problem of empty detection precision by presetting that the directions of the receiving mechanism and the detector are parallel or vertical to the laser emission direction, and simultaneously, the utility model adds the cubic reference prism for solving the technical problem that the networking of external related equipment has no detection relation.
Description
Technical Field
The utility model relates to the technical field of laser radars, in particular to a multi-channel mounted laser radar capable of automatically keeping parallel.
Background
According to the laser scattering principle, when laser is emitted and scattered with air particles, the shape and size of the particles change the polarization state of the scattered light, the shape of the atmospheric particles can be calculated according to the polarization state of echo signals, so that the current state in the air can be obtained, the current state of the air environment can be calculated according to the comparison between long-time multiplication calculation and data accumulation, and the change of the air environment in the future period can be calculated. The existing single-wavelength dual-channel polarized meter scattering aerosol laser radar system adopts a 532nm solid laser, 532nmP and 532nmS dual-channel measurement, and can obtain a time-space evolution diagram of parameters such as atmospheric aerosol extinction coefficient, backscattering coefficient, particle depolarization ratio, particulate matter concentration, optical thickness, pollutant mixed layer height, vertical visibility, cloud information and the like in a height range from the ground to 15km in an inverting manner.
However, the above prior dual-channel laser radar apparatus with polarization has the following disadvantages:
1. the installation mode of the optical signal receiving mechanism and the detector is a random state, and the optical signal receiving mechanism and the detector cannot keep a standard horizontal or vertical state with the light emitted by the laser, so that the polarization state of an echo optical signal cannot reach an ideal state, and the obtained measurement inversion result is inaccurate;
2. the independence of the laser radar equipment is too strong, effective networking cannot be formed with peripheral related equipment, and further, related contrast effects cannot be detected in a combined mode.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides a multi-channel mounted laser radar capable of automatically keeping parallel, which solves the technical problem in the prior art.
According to the embodiment of the utility model, the multichannel-mounted laser radar capable of automatically keeping parallel comprises a shell, wherein a window is arranged at the top of the shell, an optical part and an electric part which are arranged up and down are arranged in the shell, the optical part comprises a laser emitting mechanism, a signal receiving mechanism, a photoelectric detector and a cubic reference prism, the laser emitting direction of a laser is parallel to or perpendicular to the signal receiving direction of the signal receiving mechanism and the detection direction of the photoelectric detector, and the cubic reference prism faces the window and is used for being in signal connection with equipment outside the shell.
Compared with the prior art, the utility model has the following beneficial effects: according to the utility model, the arrangement positions of all elements in the laser radar are redesigned, so that the signal receiving direction of the signal receiving mechanism in the shell and the detection direction of the photoelectric detector are ensured to be parallel or vertical to the laser emission direction in the initial state, the position of the element in the laser radar is prevented from being debugged during use, the installation and debugging mode is greatly simplified, and the empty detection precision of the device is improved; simultaneously set up in the casing and be used for the cube reference prism of being connected with laser radar external signal, can carry out network deployment connection through modes such as correlation and survey with outside relevant equipment, can reach diversified, networking sky detection effect.
Furthermore, the optical part also comprises an optical bin, the laser emitting mechanism, the signal receiving mechanism, the photoelectric detector and the cubic reference prism are all arranged in the optical bin, the top of the optical bin is provided with a light outlet, and the light outlet corresponds to the window and is provided with a transparent panel.
Furthermore, a vertical reference panel is fixedly arranged in the optical bin, the laser emitting mechanism, the signal receiving mechanism and the cubic reference prism are fixedly arranged at the upper part of one side of the reference panel, and the photoelectric detector is fixedly arranged at the lower part of the same side of the reference panel.
Furthermore, the laser emission direction of the laser emission mechanism and the signal receiving direction of the signal receiving mechanism are both parallel to the plate surface of the reference panel and point to the light outlet.
Furthermore, the outer side surface of the optical bin is also provided with an air blowing and heating mechanism, and an air outlet of the air blowing and heating mechanism faces the light outlet.
Furthermore, the outer side surface of the optical bin is also provided with a heat exchange module used for dissipating heat of the optical bin.
Furthermore, a camera is further arranged in the optical bin, and a camera end of the camera faces the light outlet and the window.
Furthermore, the polarization meter-scattering optical fiber module further comprises an optical fiber installation mechanism, wherein the optical fiber installation mechanism is installed at one end, deviating from the light outlet, of the signal receiving mechanism, and an optical conversion module used for separating the polarization meter-scattering channel is arranged in the optical fiber installation mechanism.
Further, the case is provided with a door for opening the optical portion and the electric portion for maintenance.
Furthermore, the electrical part comprises an electrical box, the front side and the rear side of the electrical box are respectively provided with a control cabin and an electrical cabin, and the top of the electrical box is provided with a plurality of wiring terminals.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an optical chamber according to an embodiment of the present invention.
Fig. 3 is a top view of fig. 2.
Fig. 4 is a schematic structural diagram of an optical transceiver according to an embodiment of the present invention.
Fig. 5 is an exploded view of fig. 4.
Fig. 6 is a schematic structural diagram of an electrical part according to an embodiment of the present invention.
Fig. 7 is a front view of fig. 6.
Fig. 8 is a rear view of fig. 6.
In the above drawings: 101. an antenna; 102. a window; 103. opening the door; 201. a light outlet; 202. a blowing heating mechanism; 203. a first door panel; 204. mounting a first base; 205. the power supply access port and the information communication port; 206. a heat exchange module; 301. a laser; 302. a laser emitting mechanism; 303. a signal receiving mechanism; 304. a camera; 305. a cubic reference prism; 306. a photodetector; 307. an optical fiber mounting mechanism; 308. a reference panel; 501. a control cabin; 502. an electric bin; 503. a wiring port; 504. and a second mounting base.
Detailed Description
The technical solution of the present invention is further explained with reference to the drawings and the embodiments.
As shown in fig. 1-3, the present embodiment provides a multi-channel mounted auto-parallelism-maintaining lidar, which comprises a housing, a window 102 is formed at the top of the housing, an optical portion and an electrical portion are vertically arranged in the housing, a receiving antenna 101 is arranged at the window 102, and the receiving antenna 101 is a signal amplifier used for wireless communication. The window 102 is a passing window 102 of the laser exit and signal loop of the lidar of the present embodiment. The front side and the rear side of the shell are respectively provided with a door 103 for opening the optical part and the electric part, so that the maintenance operation of an operator is facilitated. The side of laser radar in this embodiment still is equipped with the lightning protection interface, and after equipment fixing, the lightning protection interface department is ground return circuit, increases the safety and the lightning protection effect of equipment.
As shown in fig. 2-3, in this embodiment, the optical portion further includes an optical bin, the optical bin is rectangular as a whole, a first door panel 203 is disposed on a front side of the optical bin, the first door panel 203 is used to open the optical bin, and the installation and debugging work of the equipment in the optical bin can be performed by opening the first door panel 203; the bottom of the optical bin is provided with a first mounting base 204, and the optical bin is fixedly mounted in the optical part through the first mounting base 204 at the bottom of the optical bin. The top of the optical bin is provided with a light outlet 201, signal receiving and transmitting of equipment in the optical bin are completed through the light outlet 201, the light outlet 201 corresponds to the window 102 and is provided with a transparent panel for sealing the light outlet 201, the upper portion of the other side face, adjacent to the first door panel 203, of the optical bin is provided with an air blowing and heating mechanism 202, an air outlet of the air blowing and heating mechanism 202 faces the surface of the transparent panel of the light outlet 201, the air blowing and heating mechanism 202 is used for conveying air flow and hot air to the surface of the transparent panel of the light outlet 201, rain, snow and frost on the surface of the transparent panel of the light outlet 201 in cold seasons can be effectively solved, dust and accumulated water on the surface of the transparent panel of the light outlet 201 can be blown away, and the laser radar in the embodiment can be used for various weather conditions. Preferably, the blowing heating mechanism 202 may be a hot air blower in the prior art, after the hot air blower is powered on, an air blower therein blows air into the heater, so that the air uniformly passes through the inner side and the outer side of the spiral heating wire, and heat generated after the heating wire is powered on exchanges heat with passing cold air, thereby outputting hot air flow. The rear side of the optical bin is also provided with a heat exchange module 206, and the heat exchange module 206 can effectively guide out heat generated in the optical bin to the outside of the optical bin, so that the temperature in the optical bin is reduced, and elements in the optical bin can work normally. Preferably, the heat exchange module 206 employs a prior art air-cooled radiator, and the air-cooled radiator guides hot air in the optical chamber to the outside of the optical chamber by rotation of the fan, so as to ensure normal operation of the components. The side surface of the optical bin where the heat exchange module 206 is located is also provided with an access port of a power supply and a communication port 205 of information, and the power supply is accessed into the optical bin through the access port of the power supply and the communication port 205 of the information and transmits signals. The power supply access of the optical bin is in butt joint with the aviation plug arranged at the information communication port 205, and the information communication input and output are also in butt joint with the network port, the USB port and the SMA connector arranged at the information communication port.
As shown in fig. 4, in the present embodiment, a laser 301, a laser emitting mechanism 302, a signal receiving mechanism 303, a camera 304, a cubic reference prism 305, a photodetector 306 and a fiber mounting mechanism 307 are arranged in the optical chamber, wherein light energy generated by the laser 301 is reflected and emitted by the laser emitting mechanism 302 and emitted into the air through the light outlet 201 and the window 102; the signal receiving mechanism 303 is used for receiving optical signals reflected by the conversion of air particles, and the signal receiving mechanism 303 only needs to adopt a signal receiver commonly used by laser radar in the prior art; the camera 304 monitors the sky state of the top of the laser radar in real time through the light outlet 201 and the window 102, and can intervene in the working condition of the equipment manually if necessary; the cubic reference prism 305 is used for performing correlation with external special equipment (for example, the cubic reference prism 305 aims at the optical axis of an externally arranged monitoring telescope to realize correlation), so that the installation direction, angle and direction of the laser radar in the embodiment can be obtained, the data inversion result obtained by the laser radar in the embodiment is imported, and the networking monitoring effect is achieved by combining the external special equipment, so that an accurate climate parameter of the installation direction of the laser radar in the embodiment can be obtained; the photodetector 306 may be a special-band detector, and is configured to read the optical signal captured by the signal receiving mechanism 303 and send the signal to an external computer for software inversion calculation.
As shown in fig. 4-5, in this embodiment, the laser 301 is rectangular and has its surface fixedly attached to the lower portion of one side of the reference panel 308, the laser emitting mechanism 302 is fixedly attached to the upper portion of the same side of the reference panel 308, the direction of laser emission is parallel to the surface of the reference panel 308 and is directed to the light outlet 201 and the window 102, the signal receiving mechanism 303 is positioned and attached to the upper portion of the same side of the reference panel 308 by a fixing plate, and the direction of signal receiving of the signal receiving mechanism 303 is parallel to the direction of laser emission and is also directed to the light outlet 201 and the window 102. The optical fiber installation mechanism 307 is installed at the other end, far away from the receiving end, of the signal receiving mechanism 303, an optical conversion module is arranged inside the optical fiber installation mechanism 307, a polarization meter scattering channel can be separated, inversion comparison is carried out on signals received by the two channels, and a space-time evolution diagram of parameters such as various information can be obtained; the camera 304 and the cubic reference prism 305 are also installed on the upper part of the same side of the reference panel 308, the cubic reference prism 305 is located between the camera 304 and the laser emitting mechanism 302, the camera end of the camera 304 faces the light outlet 201 and the window 102, and the working end of the cubic reference prism 305 also faces the light outlet 201 and the window 102. In the utility model, the arrangement of the installation positions of the elements in the laser radar optical bin is mainly carried out again, so that the directions of the signal receiving mechanism 303 and the photoelectric detector 306 are parallel to or perpendicular to the laser emission direction in the initial state, the polarization state of the echo optical signal can reach an ideal state without additional debugging, and the detection result obtained by signal inversion is ensured to be a more accurate result.
As shown in fig. 6-8, in the present embodiment, an electrical box is disposed in the electrical part, the electrical box is also rectangular, and the front side and the rear side of the electrical box are respectively provided with an opening, and a control cabin 501 is disposed in the opening at the front side of the electrical box, and an electrical cabin 502 is disposed in the opening at the rear side of the electrical box. The control cabin 501 is used for installing hardware control equipment such as optical path control equipment and software algorithm equipment, and the electrical cabin 502 is used for installing necessary equipment such as circuit wires. Through dividing into control cabin 501 and electrical cabin 502 with the electric box, can carry out the subregion installation with equipment such as indispensable controlgear in the lidar use and circuit electric wire better, it is more convenient when operating personnel maintain or change and overhaul.
As shown in fig. 6, in the present embodiment, the top of the electrical box is provided with a plurality of wiring ports 503, and the wiring ports 503 are connections for connecting all the circuits and signal terminals of the lidar in the present embodiment. And a second mounting base 504 is fixedly arranged at the bottom of the electrical box, and the electrical box is fixedly mounted in the electrical part through the second mounting base 504.
The working principle of the utility model is as follows: generating light energy by a laser 301, emitting the light energy by a laser emitting mechanism 302, and emitting the light energy to the air through the light outlet 201 and the window 102; the signal receiving mechanism 303 is used for receiving the optical signals reflected by the conversion of the air particles, reading the optical signals captured by the signal receiving mechanism 303 through the photoelectric detector 306 and sending the signals to an external computer; the cubic reference prism 305 aims at the optical axis of the monitoring telescope arranged outside to realize correlation, obtains the installation direction, angle and direction of the laser radar and sends the installation direction, angle and direction to an external computer, and the external computer can perform software inversion calculation on the received information.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (10)
1. The utility model provides a laser radar of multichannel installation automatic stay parallel, includes the casing, and the casing top is equipped with the window, is equipped with optical part and electric part that arranges from top to bottom in the casing, its characterized in that: the optical part comprises a laser emitting mechanism, a signal receiving mechanism, a photoelectric detector and a cubic reference prism, wherein the laser emitting mechanism, the signal receiving mechanism, the photoelectric detector and the cubic reference prism are fixedly arranged in the shell, the signal receiving direction of the signal receiving mechanism and the detection direction of the photoelectric detector are both parallel to or perpendicular to the laser emitting direction of the laser, and the cubic reference prism faces the window and is used for being in signal connection with equipment outside the shell.
2. A multi-channel mounted auto-parallelism lidar according to claim 1, wherein: the optical part further comprises an optical bin, the laser emitting mechanism, the signal receiving mechanism, the photoelectric detector and the cubic reference prism are all arranged in the optical bin, a light outlet is formed in the top of the optical bin, and the light outlet corresponds to the window and is provided with a transparent panel.
3. A multi-channel mounted auto-parallelism lidar according to claim 2, wherein: the optical bin is fixedly provided with a vertical reference panel, the laser emitting mechanism, the signal receiving mechanism and the cubic reference prism are fixedly arranged on the upper part of one side of the reference panel, and the photoelectric detector is fixedly arranged on the lower part of the same side of the reference panel.
4. A multi-channel mounted auto-parallelism lidar according to claim 3, wherein: and the laser emission direction of the laser emission mechanism and the signal receiving direction of the signal receiving mechanism are both parallel to the plate surface of the reference panel and point to the light outlet.
5. A multi-channel mounted auto-parallelism lidar according to claim 2, wherein: the outer side surface of the optical bin is further provided with an air blowing and heating mechanism, and an air outlet of the air blowing and heating mechanism faces the light outlet.
6. A multi-channel mounted auto-parallelism lidar according to claim 2, wherein: the lateral surface of optics storehouse still is equipped with and is used for carrying out radiating heat exchange module to optics storehouse.
7. A multi-channel mounted auto-parallelism lidar according to claim 2, wherein: still be equipped with the camera in the optics storehouse, the end of making a video recording of camera faces light-emitting outlet and window.
8. A multi-channel mounted auto-parallelism lidar according to claim 7 wherein: the polarization meter scattering optical fiber device is characterized by further comprising an optical fiber mounting mechanism, wherein the optical fiber mounting mechanism is mounted at one end, deviating from the light outlet, of the signal receiving mechanism, and an optical conversion module used for separating a polarization meter scattering channel is arranged in the optical fiber mounting mechanism.
9. A multi-channel mounted auto-parallelism lidar according to claim 1, wherein: the shell is provided with a door for opening the optical part and the electric part for maintenance.
10. A multi-channel mounted auto-parallelism lidar according to claim 1, wherein: the electric part comprises an electric box, the front side and the rear side of the electric box are respectively a control bin and an electric bin, and a plurality of wiring terminals are arranged at the top of the electric box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122778533.0U CN216595519U (en) | 2021-11-12 | 2021-11-12 | Multi-channel laser radar capable of being installed and automatically keeping parallel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122778533.0U CN216595519U (en) | 2021-11-12 | 2021-11-12 | Multi-channel laser radar capable of being installed and automatically keeping parallel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216595519U true CN216595519U (en) | 2022-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122778533.0U Active CN216595519U (en) | 2021-11-12 | 2021-11-12 | Multi-channel laser radar capable of being installed and automatically keeping parallel |
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| CN (1) | CN216595519U (en) |
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2021
- 2021-11-12 CN CN202122778533.0U patent/CN216595519U/en active Active
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