CN216434372U - Laser radar measurement system with indicating function - Google Patents
Laser radar measurement system with indicating function Download PDFInfo
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- CN216434372U CN216434372U CN202122146065.5U CN202122146065U CN216434372U CN 216434372 U CN216434372 U CN 216434372U CN 202122146065 U CN202122146065 U CN 202122146065U CN 216434372 U CN216434372 U CN 216434372U
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Abstract
The utility model relates to a laser radar technical field, concretely relates to laser radar measurement system with indicative function. The laser beam combination device comprises a measuring laser, an indicating laser, a dichroic mirror, a collimating mirror, a scanning reflecting mirror and a laser detector, wherein the measuring laser is used for emitting measuring laser, the indicating laser is used for emitting visible laser, the dichroic mirror is used for combining the measuring laser and the visible laser to generate combined laser, the collimating mirror is used for collimating the combined laser, the collimated combined laser can be irradiated onto the scanning reflecting mirror and is irradiated onto a detection object after being reflected by the scanning reflecting mirror, the combined laser irradiated onto the detection object generates laser echo after being reflected by the detection object, and the laser echo is received by the laser detector after being reflected by the scanning reflecting mirror. The utility model discloses can effectively instruct the light path of surveying laser, be convenient for observe laser surveying's place on the spot, it is more convenient to use.
Description
Technical Field
The utility model relates to a laser radar technical field, concretely relates to laser radar measurement system with indicative function.
Background
Laser Radar (Laser Radar) is a Radar system that detects characteristic quantities such as a position and a velocity of a target by emitting a Laser beam. The working principle is that a detection signal (laser beam) is transmitted to a target, then a received signal (target echo) reflected from the target is compared with the transmitted signal, and after appropriate processing, relevant information of the target, such as target distance, direction, height, speed, attitude, even shape and other parameters, can be obtained, so that the target is detected, tracked and identified. The single-line laser radar is one of laser radars, and has the advantages of low power consumption, small volume, simple structure and the like, so that the single-line laser radar is widely applied.
In the practical application of the single-line laser radar, most of laser emitted by the laser radar is 905nm infrared laser, so that the laser measurement position cannot be observed and wiped by human eyes, and the problems of not-in-place installation and inconvenient use are caused. For example, in the service robot industry, many laser radars are installed on a chassis and are close to the ground, and once the radar installation angle is inclined, laser can be incident on the ground at a distance to form an error point cloud, and the radar installation position is corrected without stopping point cloud data in real time when the point cloud data needs to be installed, so that the use is very inconvenient. Therefore, there is a need for a lidar system that facilitates survey and observation.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model provides a laser radar measurement system with indicative function, when it used, can effectively instruct the light path of surveying laser, be convenient for observe laser surveying's place on the spot, it is more convenient to use.
The utility model discloses the technical scheme who adopts does:
a laser radar measuring system with an indicating function comprises a measuring laser, an indicating laser, a dichroic mirror, a collimating mirror, a scanning reflecting mirror and a laser detector, wherein the measuring laser is used for emitting measuring laser, the indicating laser is used for emitting visible laser, the dichroic mirror is used for combining the measuring laser and the visible laser to generate combined laser, the collimating mirror is used for collimating the combined laser, the collimated combined laser can be irradiated onto the scanning reflecting mirror and is irradiated onto a detection object after being reflected by the scanning reflecting mirror, the combined laser irradiated onto the detection object is reflected by the detection object to generate laser echo, and the laser echo is received by the laser detector after being reflected by the scanning reflecting mirror.
Based on the technical content, the measuring laser emitted by the measuring laser and the visible laser emitted by the indicating laser can be combined through the dichroic mirror to generate combined laser, the combined laser comprises two types of laser, so that the combined laser can be used for object detection and can be observed by naked eyes, the combined laser is collimated by the collimating mirror and irradiates on a detection object after being reflected by the scanning reflector, the combined laser irradiating on the detection object generates laser echo after being reflected by the detection object, the laser echo is the same as the combined laser, the laser echo can be used for object detection and can be observed by the naked eyes, and the laser echo is received by the laser detector after being reflected by the scanning reflector. The system can effectively indicate the light path of the detection laser, is convenient for observing the laser measurement place on the spot, and is more convenient to use.
In one possible design, the system further includes a focusing lens, the focusing lens is used for focusing the laser echo reflected by the scanning mirror, and a focal point of the focusing lens is located at a receiving end of the laser detector. When the laser detector is used, the laser echo reflected by the scanning reflector can be focused on the laser detector by arranging the focusing lens, so that the detection quality is improved.
In one possible design, the system further includes a filter, which is disposed between the focusing lens and the laser detector, and is used for filtering the focused laser echo. When the device is applied, the focused laser echo can be filtered by arranging the filter, the interference of useless signals is eliminated, and the detection precision is improved.
In one possible design, a mounting through hole is formed in the focusing lens, and the collimating mirror is mounted in the mounting through hole, so that the combined laser beam penetrates through the mounting through hole and the collimating mirror to irradiate the scanning reflecting mirror. When the laser beam combining device is used, the collimating lens is installed by arranging the installation through hole in the focusing lens, so that the combined laser and laser echo can be subjected to centralized processing, the integration level is improved, the system architecture space is reduced as much as possible, and the volume of the integrated system is reduced.
In one possible design, the dichroic mirror transmits the measurement laser light and reflects the visible laser light, so that the transmitted measurement laser light and the reflected visible laser light are combined to generate combined laser light. When the device is applied, the beam combination of the measuring laser and the visible laser can be effectively realized through the transmission and reflection actions of the dichroic mirror.
In one possible design, the system further includes an optical fiber disposed at the emission end of the measurement laser, and configured to collimate and compress the measurement laser emitted by the measurement laser, so that the collimated and compressed measurement laser irradiates the dichroic mirror. When the device is used, the measuring laser emitted by the measuring laser can be collimated and compressed by arranging the optical fiber, so that the emergent angle is ensured, and the beam combination of the laser is effectively realized.
In one possible design, the system further includes a reflecting mirror for reflecting and changing the optical path of the combined laser light, so that the combined laser light generated by the dichroic mirror is deflected by 90 ° and then irradiates the collimating mirror. When the laser beam combining device is applied, the light path of the combined laser beam is changed by arranging the reflector, so that the problem that the long light path causes the redundancy of the system after the system is integrated can be avoided, and the system architecture space is reduced as much as possible.
In one possible design, the system further comprises a shield, the scanning mirror is mounted in the shield, and both the combined laser and the laser echo can pass through the shield. When the laser detection device is used, the scanning reflector can be effectively protected through the protective cover, and normal laser detection cannot be interfered.
In one possible design, the measurement laser is a 905nm laser and the visible laser is a 632nm laser.
The utility model has the advantages that:
the utility model discloses a dichroic mirror can close the measuring laser of measuring laser emission and the visual laser of instructing laser emission, the formation closes a bundle laser, close a bundle laser owing to contain two kinds of laser, so both can be used for the object to survey and can be seen by the naked eye observation, close a bundle laser through the collimating mirror collimation, and shine after the scanning mirror reflection on surveying the object, shine and survey and restraint laser on the object and produce the laser echo after surveying the object reflection, it is the same with closing a bundle laser, the laser echo both can be used for the object to survey and can be seen by the naked eye observation again, the laser echo is received by laser detector after the scanning mirror reflection. The system can effectively indicate the light path of the detection laser, is convenient for observing the laser measurement place on the spot, and is more convenient to use.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the following description is made with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. a measurement laser; 2. an optical fiber; 3. an indicator laser; 4. a dichroic mirror; 5. a mirror; 6. a collimating mirror; 7. a scanning mirror; 8. a protective cover; 9. detecting an object; 10. a focusing lens; 11. a filter; 12. and a laser detector.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Specific structural and functional details disclosed herein are merely illustrative of example embodiments of the invention. The present invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.
Example 1:
the embodiment provides a laser radar measurement system with an indication function, as shown in fig. 1, the system includes a measurement laser 1, an indication laser 3, a dichroic mirror 4, a collimating mirror 6, a scanning reflecting mirror 7, and a laser detector 12, the measurement laser 1 is configured to emit measurement laser, the indication laser 3 is configured to emit visible laser, the dichroic mirror 4 is configured to combine the measurement laser and the visible laser to generate combined laser, the collimating mirror 6 is configured to collimate the combined laser, the collimated combined laser can be irradiated onto the scanning reflecting mirror 7 and irradiated onto a detection object 9 after being reflected by the scanning reflecting mirror 7, the combined laser irradiated onto the detection object 9 is reflected by the detection object 9 to generate laser echo, and the laser echo is received by the laser detector 12 after being reflected by the scanning reflecting mirror 7.
In specific implementation, the measuring laser can be 905nm laser, and the visible laser can be 632nm laser. The measuring laser emitted by the measuring laser 1 and the visible laser emitted by the indicating laser 3 can be combined through the dichroic mirror 4 to generate combined laser, the combined laser comprises two lasers, so that the combined laser can be used for object detection and can be observed by naked eyes, the combined laser is collimated through the collimating mirror 6 and reflected by the scanning reflecting mirror 7 to irradiate onto the detection object 9, the combined laser irradiated onto the detection object 9 is reflected by the detection object 9 to generate laser echo, the laser echo is the same as the combined laser, can be used for object detection and can be observed by naked eyes, and the laser echo is reflected by the scanning reflecting mirror 7 to be received by the laser detector 12. The system can effectively indicate the light path of the detection laser, is convenient for observing the laser measurement place on the spot, and is more convenient to use.
Example 2:
as an optimization of the above embodiment, the system further includes a focusing lens 10, the focusing lens 10 is configured to focus the laser echo reflected by the scanning mirror 7, and a focal point of the focusing lens 10 is located at a receiving end of the laser detector 12. In specific implementation, the focusing lens 10 is arranged to focus the laser echo reflected by the scanning mirror 7 on the laser detector 12, so that the detection quality is improved.
Further, the system further comprises a filter 11, and the filter 11 is disposed between the focusing lens 10 and the laser detector 12 and is used for filtering the focused laser echo. In specific implementation, the focused laser echo can be filtered by arranging the filter 11, so that interference of useless signals is eliminated, and the detection precision is improved.
Furthermore, an installation through hole is formed in the focusing lens 10, and the collimating mirror 6 is installed in the installation through hole, so that the combined laser beam passes through the installation through hole and the collimating mirror 6 and irradiates the scanning reflecting mirror 7. During specific implementation, the collimating lens 6 is installed by arranging the installation through hole in the focusing lens 10, so that the combined laser and the laser echo can be subjected to centralized processing, the integration level is improved, the system architecture space is reduced as much as possible, and the volume of the integrated system is reduced.
The system further comprises a protective cover 8, the scanning reflecting mirror 7 is installed in the protective cover 8, and the combined laser and the laser echo can penetrate through the protective cover 8. During specific implementation, the scanning reflector 7 can be effectively protected through the protective cover 8, and normal laser detection cannot be interfered.
Example 3:
as an optimization of the above embodiment, the dichroic mirror 4 transmits the measurement laser light and reflects the visible laser light, and combines the transmitted measurement laser light and the reflected visible laser light to generate combined laser light. In specific implementation, the beam combination of the measurement laser and the visible laser can be effectively realized through the transmission and reflection actions of the dichroic mirror 4.
Further, the system further comprises an optical fiber 2, wherein the optical fiber 2 is arranged at the emitting end of the measuring laser 1 and is used for collimating and compressing the measuring laser emitted by the measuring laser 1, so that the collimated and compressed measuring laser irradiates the dichroic mirror 4. During specific implementation, the optical fiber 2 is arranged to collimate and compress the measuring laser emitted by the measuring laser 1 so as to ensure the emergent angle and effectively realize the beam combination of the laser.
Further, the system further comprises a reflecting mirror 5, wherein the reflecting mirror 5 is used for reflecting and changing the light path of the combined laser, so that the combined laser generated by the dichroic mirror 4 is turned by 90 degrees and then irradiates on a collimating mirror 6. In specific implementation, the light path of the beam combination laser is changed by arranging the reflector 5, so that the problem of long light path after system integration is avoided, and the system architecture space is reduced as much as possible.
The present invention is not limited to the above-mentioned alternative embodiments, and various other products can be obtained by anyone under the teaching of the present invention. The above detailed description should not be taken as limiting the scope of the invention, which is defined in the following claims, and which can be used to interpret the claims.
Claims (9)
1. The utility model provides a laser radar measurement system with indicative function which characterized in that: the laser device comprises a measuring laser (1), an indicating laser (3), a dichroic mirror (4), a collimating mirror (6), a scanning reflecting mirror (7) and a laser detector (12), wherein the measuring laser (1) is used for emitting measuring laser, the indicating laser (3) is used for emitting visible laser, the dichroic mirror (4) is used for combining the measuring laser and the visible laser to generate combined laser, the collimating mirror (6) is used for collimating the combined laser, the collimated combined laser can be irradiated onto the scanning reflecting mirror (7) and is irradiated onto a detection object (9) after being reflected by the scanning reflecting mirror (7), the combined laser irradiated onto the detection object (9) is reflected by the detection object (9) to generate laser echo, and the laser echo is received by the laser detector (12) after being reflected by the scanning reflecting mirror (7).
2. The lidar measurement system with indication according to claim 1, wherein: the system further comprises a focusing lens (10), the focusing lens (10) is used for focusing the laser echo reflected by the scanning reflector (7), and the focal point of the focusing lens (10) is located at the receiving end of the laser detector (12).
3. The lidar measurement system with indication according to claim 2, wherein: the system further comprises a filter (11), wherein the filter (11) is arranged between the focusing lens (10) and the laser detector (12) and is used for filtering the focused laser echo.
4. The lidar measurement system with indication according to claim 2, wherein: the focusing lens (10) is internally provided with a mounting through hole, and the collimating mirror (6) is mounted in the mounting through hole, so that the combined laser passes through the mounting through hole and the collimating mirror (6) and irradiates on the scanning reflecting mirror (7).
5. The lidar measurement system with indication according to claim 1, wherein: the dichroic mirror (4) transmits the measuring laser and reflects the visible laser, so that the transmitted measuring laser and the reflected visible laser are combined to generate combined laser.
6. The lidar measurement system with indication according to claim 1, wherein: the system further comprises an optical fiber (2), wherein the optical fiber (2) is arranged at the transmitting end of the measuring laser (1) and used for collimating and compressing the measuring laser transmitted by the measuring laser (1) and enabling the collimated and compressed measuring laser to irradiate the dichroic mirror (4).
7. The lidar measurement system with indication according to claim 1, wherein: the system also comprises a reflecting mirror (5), wherein the reflecting mirror (5) is used for reflecting and changing the light path of the combined laser, so that the combined laser generated by the dichroic mirror (4) is turned by 90 degrees and then irradiates the collimating mirror (6).
8. The lidar measurement system with indication according to claim 1, wherein: the system further comprises a protective cover (8), the scanning reflecting mirror (7) is installed in the protective cover (8), and the combined laser and the laser echo can penetrate through the protective cover (8).
9. The lidar measurement system with indication according to claim 1, wherein: the measuring laser is 905nm laser, and the visible laser is 632nm laser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122146065.5U CN216434372U (en) | 2021-09-06 | 2021-09-06 | Laser radar measurement system with indicating function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122146065.5U CN216434372U (en) | 2021-09-06 | 2021-09-06 | Laser radar measurement system with indicating function |
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| Publication Number | Publication Date |
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| CN216434372U true CN216434372U (en) | 2022-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122146065.5U Active CN216434372U (en) | 2021-09-06 | 2021-09-06 | Laser radar measurement system with indicating function |
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| CN (1) | CN216434372U (en) |
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- 2021-09-06 CN CN202122146065.5U patent/CN216434372U/en active Active
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