CN113093152A - Laser detector for panoramic view - Google Patents
Laser detector for panoramic view Download PDFInfo
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- CN113093152A CN113093152A CN202110378325.3A CN202110378325A CN113093152A CN 113093152 A CN113093152 A CN 113093152A CN 202110378325 A CN202110378325 A CN 202110378325A CN 113093152 A CN113093152 A CN 113093152A
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- laser
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- detection device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
- G01S7/4817—Constructional features, e.g. arrangements of optical elements relating to scanning
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
The application discloses panorama laser detection device includes: the laser device comprises a power part, a laser emitting part and a laser receiving part, wherein the power part is of a conical structure, the bottom surface of the power part is detachably connected with the laser emitting part, and the laser emitting part is rotatably connected with the laser receiving part; a central channel is formed in a rotating base body in the laser emitting part along the central line, a plurality of light emitting holes communicated with the central channel are formed in the peripheral direction, a laser emitter is arranged in the central channel and electrically connected with a driving circuit, the driving circuit is used for controlling the laser emitter to emit detection light, and the detection light is emitted through the light emitting holes; in the laser receiving part, a plurality of light inlet holes with forward-inclined preset angles are formed in the fixing base body along the circumferential direction of the laser receiving part, laser receivers are arranged in the light inlet holes, and the laser receivers are all electrically connected with a control circuit. This application passes through the drive of power portion, and the transmission of 360 degrees back taper light curtains is realized to laser emission portion to realize omnidirectional circumference and survey, make and survey more comprehensive.
Description
Technical Field
The application relates to the technical field of optics, especially, relate to a panoramic laser detection device.
Background
With the continuous development of laser devices, the application of laser technology in various fields is more and more extensive, and for laser detection, the laser technology is more and more widely applied to the fields of laser ranging, communication, tracking and radar. The laser detection refers to emitting laser through an emitting system, generating diffuse reflection echo signals when the laser touches a target, and extracting required target characteristics according to analysis of the diffuse reflection echo signals. The field of view detected by the emission system is particularly important for detecting the target.
The most important component of the emission system is a laser emitter, and the laser emitter has a certain emission aperture, and the emission aperture determines the range of a visual field which can be detected by the emission system. At present, for laser detection, the field of view that can detect is limited, and 360 degrees circumferential detection cannot be carried out, so that the detection is incomplete.
Disclosure of Invention
The application provides a panoramic laser detection device to solve the technical problem that laser detection is incomplete in the prior art.
In order to solve the technical problem, the embodiment of the application discloses the following technical scheme:
the embodiment of the application discloses panorama laser detection device, detection device includes: power portion, laser-emitting portion and laser-receiving portion, wherein:
the power part is in a conical structure, the bottom surface of the power part is detachably connected with the laser emitting part, and the laser emitting part is rotatably connected with the laser receiving part;
the laser emitting part comprises a rotating base body, the rotating base body is provided with a central channel along the direction of a central line, a plurality of light emitting holes are formed in the rotating base body along the circumferential direction of the laser emitting part, the light emitting holes all incline forward by a preset angle and are communicated with the central channel, a laser emitter is arranged in the central channel and is electrically connected with a driving circuit, the driving circuit is used for controlling the laser emitter to emit detection light, and the detection light is emitted through the light emitting holes;
the laser receiving part comprises a fixed base body, a plurality of light inlet holes are formed in the fixed base body along the circumferential direction of the laser receiving part, the light inlet holes are all inclined forward by preset angles, a plurality of laser receivers are arranged in the light inlet holes and are electrically connected with a control circuit, and the control circuit is used for generating control signals according to reflected light received by the laser receivers.
Optionally, in the panoramic laser detection device, the detection device further includes a light splitting assembly, where the light splitting assembly includes a base and a light splitting prism fixedly connected to the base;
an internal thread is arranged at one end of the central channel close to the power part, an external thread matched with the internal thread is arranged on the base, and the base is in threaded connection with the central channel;
the number of the side surfaces of the beam splitter prism is the same as that of the light outlet holes, the positions of the side surfaces of the beam splitter prism and the light outlet holes correspond one to one, reflectors are arranged in the light outlet holes,
the detection light sequentially passes through the beam splitter prism and the reflector.
Optionally, in the panoramic laser detection device, a connection hole is formed along a center line direction at one end of the fixed base body close to the laser emitting part;
the laser emitting part is rotatably connected with the laser receiving part through a connecting shaft, one end of the connecting shaft is rotatably connected with the central channel through a bearing, and the other end of the connecting shaft is fixedly connected with the connecting hole.
Optionally, in the above panoramic laser detection device, the connecting shaft is a hollow connecting shaft, and the laser emitter and the driving circuit are disposed in the connecting shaft.
Optionally, in the panoramic laser detection device, the connecting shaft is a stepped shaft, one end of the stepped shaft, which is close to the laser emitting part, sequentially passes through a large bearing, a small bearing and a stop nut, and a spacer is arranged between the large bearing and the small bearing;
and one end of the fixed base body close to the laser emitting part is provided with a screw hole on the side surface, a screw hole is arranged at the corresponding position of the connecting shaft, and the connecting shaft is connected with the fixed base body through the screw hole by a fixing screw.
Optionally, in the panoramic laser detection device, the laser emitting portion and the laser receiving portion are both in a circular truncated cone structure, an upper bottom surface of the laser emitting portion is connected to the power portion, an area of the upper bottom surface of the laser emitting portion is the same as an area of a bottom surface of the power portion, a lower bottom surface of the laser emitting portion is connected to the upper bottom surface of the laser receiving portion, and an area of the lower bottom surface of the laser emitting portion is the same as an area of the upper bottom surface of the laser receiving portion.
Optionally, in the panoramic laser detection device, an installation hole is formed in one end of the fixed base body, which is far away from the laser emitting portion, along a center line direction, the installation hole is provided with an installation bracket, and the plurality of laser receivers are all fixed on the installation bracket.
Optionally, in the panoramic laser detection device, the power unit is a radial turbine.
Optionally, in the above-mentioned panoramic laser detection device, the number of the light entrance holes is 4, and the receiving field of view of each laser receiver is 90 degrees.
Optionally, in the above-mentioned panoramic laser detection device, the light exit holes are each provided with an optical window, and the optical window is flush with the edge of the laser emitting portion.
Compared with the prior art, the beneficial effect of this application is:
the application provides a panoramic laser detection device, and in the device, power portion is the toper structure and connects in laser emission portion, and laser emission portion and laser receiving portion rotate the connection. When whole detection device moves fast, the effect that power portion utilized the air current of meeting one's head on in moving can drive laser emission portion and rotate. In the laser emitting portion, the drive circuit controls the laser emitter to emit probe light, which is emitted along the central passage and is emitted through a plurality of light emitting holes disposed obliquely forward. After the laser emitting part rotates, the detection light emitted through the light outlet hole is changed into an inverted cone-shaped detection light curtain to form a detection field. In addition, for the laser light receiving part, a plurality of light inlet holes are arranged on the fixed base body along the circumferential direction, the plurality of light inlet holes are all inclined forward by a preset angle, and laser receivers are arranged in the plurality of light inlet holes. When the detection light detects the target, reflected light is generated, the reflected light is received by the laser receiver, and a control signal is generated according to the received reflected light under the action of the control circuit. The application provides a panoramic laser detection device, through the drive of power portion, the transmission of 360 back taper light curtains is realized to laser emission portion to realize 360 degrees circumference and survey, make and survey more comprehensive.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of a basic structure of a panoramic laser detection apparatus according to an embodiment of the present invention;
description of reference numerals: 1. a power section; 2. a laser emitting section; 21. rotating the substrate; 22. a light exit hole; 23. a laser transmitter; 24. detecting light; 3. a laser receiving section; 31. fixing the substrate; 32. a light inlet hole; 33. a laser receiver; 34. reflecting the light; 4. a connecting shaft; 5. a light splitting component; 51. a base; 52. a beam splitter prism; 6. a large bearing; 7. a small bearing; 8. mounting a bracket; 9. an optical window.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, a basic structure diagram of a laser panoramic detection apparatus according to an embodiment of the present invention is shown. With reference to fig. 1, a panoramic laser detection apparatus provided in an embodiment of the present application includes: a power unit 1, a laser emitting unit 2, and a laser receiving unit 3. The power unit 1 drives the laser emitting unit 2 to rotate, so that the laser emitting unit 2 emits a 360-degree detection light curtain, and the detection light curtain is received by the laser receiving unit 3 when detecting a target and reflecting the reflected light.
In the embodiment of the present application, the power unit 1 is a radial turbine, the power unit 1 has a conical shape, and the bottom surface thereof is detachably connected to the laser emitting unit 2, and the laser emitting unit 2 is rotatably connected to the laser receiving unit 3. Because the power part 1 is in a conical structure, the design of the conical structure not only enables the power part 1 to fully drive the laser emitting part 2 to rotate under the action of the head-on airflow in the movement. The overall size of the detection device can be reduced as much as possible, and electromagnetic interference is avoided.
The laser emitting part 2 comprises a rotating base body 21, a central channel is formed in the rotating base body 21 along the direction of a central line, and a plurality of light emitting holes 22 are formed in the rotating base body 21 along the circumferential direction of the laser emitting part 2. The plurality of light emitting holes 22 are all inclined forward by a preset angle and are all communicated with the central passage. The central channel is provided with a laser emitter 23, the laser emitter 23 is electrically connected with a driving circuit, the driving circuit is used for controlling the laser emitter 23 to emit a detection light 24, and the detection light 24 is emitted through the light emitting hole 22. In the present application, the forward inclination preset angle of the light exit hole 22 may be 45 degrees, so that after the laser emitting part 2 rotates, the detection light emitted through the light exit hole 22 becomes an inverted cone-shaped detection light curtain.
The laser receiving part 3 comprises a fixed base 31, a plurality of light inlet holes 32 are formed in the fixed base 31 along the circumferential direction of the laser receiving part 3, the light inlet holes 32 all incline forward by a preset angle, laser receivers 33 are arranged in the light inlet holes 32, the laser receivers 33 are all electrically connected with a control circuit, and the control circuit is used for generating control signals according to reflected light 34 received by the laser receivers 33. The reflected light 34 is generated after the detection light 24 detects the target, the reflected light 34 is received by the laser receiver 33, and a control signal is generated according to the received reflected light 34 under the action of the control circuit. The number of the light inlet holes 32 is 4, and the receiving view field of each laser receiver 33 is 90 degrees, so that the receiving of a large view field is realized, the receiving of 360-degree omnibearing reflected light is met, the target positioning is accurate, and the detection precision is high.
The utility model provides a panoramic laser detection device, through the drive of power portion 1, the transmission of 360 degrees back taper light curtains is realized to laser emission portion 2 to realize 360 degrees circumference and survey, make and survey more comprehensive.
In the embodiment of the present application, the detection apparatus further includes a light splitting assembly 5, where the light splitting assembly 5 includes a base 51 and a light splitting prism 52 fixedly connected to the base 51. An internal thread is arranged at one end, close to the central channel of the power part 1, an external thread matched with the internal thread is arranged on the base 51, and the base 51 is in threaded connection with the central channel. The number of the side surfaces of the light splitting prism 52 is the same as that of the light exit holes 22, and the side surfaces of the light splitting prism 52 correspond to the positions of the light exit holes 22 one by one. For example, if there are 4 light-emitting holes 22, the beam splitter prism 52 may have a rectangular pyramid structure, and 4 sides correspond to the 4 light-emitting holes one by one. A reflecting mirror is arranged in each of the light-emitting holes 22, and the detection light 24 sequentially passes through the beam splitter prism 52 and the reflecting mirror and is emitted through the light-emitting holes 22. In addition, in order to prevent impurities such as dust from falling into the light emitting holes 22, the light emitting holes 22 are all provided with the optical windows 9, the optical windows 9 are flush with the edges of the laser emitting parts 2, and the optical windows 9 can prevent the impurities from falling into the light emitting holes 22 and can ensure the integrity of the laser emitting parts 2, so that the laser emitting parts 2 can be kept stable during rotation.
In the present application, the probe beam emitted by the laser emitter 23 is a narrow beam, and the beam splitter prism 52 changes the probe beam from a parallel beam to a plurality of oblique beams, so that the laser emitter 23 can be horizontally installed, and the installation difficulty and the installation space are reduced.
In the embodiment of the present application, a connecting hole is formed in one end of the fixing base 31, which is close to the laser emitting portion 2, along the direction of the central line, the laser emitting portion 2 is rotatably connected to the laser receiving portion 3 through a connecting shaft 4, one end of the connecting shaft 4 is rotatably connected to the central passage through a bearing, and the other end of the connecting shaft is fixedly connected to the connecting hole. The laser emitting portion 2 and the laser receiving portion 3 are relatively rotatable by the connection of the connecting shaft 4.
Further, in order to reduce the installation space as much as possible, the connecting shaft 4 is a hollow connecting shaft, and the laser emitter 23 and the driving circuit are arranged in the connecting shaft 4. In addition, for the convenience of assembling connecting axle 4, laser emission portion 2 and laser receiving portion 3, in this application, connecting axle 4 is the step axle, is close to laser emission portion 2 the one end of step axle passes big bearing 6, little bearing 7 and lock nut in proper order, big bearing 6 with be provided with the spacer between the little bearing 7. One end of the fixing base body 31 close to the laser emitting part 2 is provided with a screw hole on the side surface, a screw hole is arranged at the corresponding position of the connecting shaft 4, and the connecting shaft 4 is connected with the fixing base body 31 through the screw hole by a fixing screw. If the connecting shaft 4 is a step shaft, the connecting shaft can be more conveniently positioned in the central channel.
In the embodiment of the present application, the laser emitting portion 2 and the laser receiving portion 3 are round platform structures, the upper bottom surface of the laser emitting portion 2 is connected with the power portion 1, and the area of the upper bottom surface of the laser emitting portion 2 is the same as the area of the bottom surface of the power portion 1, the lower bottom surface of the laser emitting portion 2 is connected with the upper bottom surface of the laser receiving portion 3, and the area of the lower bottom surface of the laser emitting portion 2 is the same as the area of the upper bottom surface of the laser receiving portion 3. The appearance of the whole panoramic laser detection device is smoother, the size of the whole structure is small, and the panoramic laser detection device is suitable for installation of miniaturized equipment.
In the embodiment of the present application, the mounting hole has been seted up along the central line direction to fixed base member 31 one end of keeping away from laser emission portion 2, the mounting hole is provided with installing support 8, and is a plurality of laser receiver 33 all is fixed in on the installing support 8. In some embodiments, if 4 light-entering holes 32 are formed in the fixing base 31, that is, 4 laser receivers 33 are installed, the mounting bracket 8 may have a regular quadrangular pyramid structure. The bottom surface of the mounting bracket 8 is provided with a spigot, the lower bottom surface of the fixed base body 31 is provided with a corresponding spigot, and the bottom surface of the mounting bracket 8 and the lower bottom surface of the fixed base body 31 can be connected through a spigot surface.
In some embodiments, the lower bottom surface of the fixing base 31 is provided with a structure for connecting with other parts of the used device, for example, a step surface is provided at the edge of the lower bottom surface, and mounting screw holes uniformly distributed along the circumference are provided at the outer circle of the step, so that the mounting and fixing of the whole panoramic laser detection device are realized.
Since the above embodiments are all described by referring to and combining with other embodiments, the same portions are provided between different embodiments, and the same and similar portions between the various embodiments in this specification may be referred to each other. And will not be described in detail herein.
It is noted that, in this specification, relational terms such as "first" and "second," and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a circuit structure, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such circuit structure, article, or apparatus. Without further limitation, the presence of an element identified by the phrase "comprising an … …" does not exclude the presence of other like elements in a circuit structure, article or device comprising the element.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
The above-described embodiments of the present application do not limit the scope of the present application.
Claims (10)
1. A panoramic laser detection device, characterized in that the detection device comprises: a power section (1), a laser emitting section (2), and a laser receiving section (3), wherein:
the power part (1) is of a conical structure, the bottom surface of the power part is detachably connected to the laser emitting part (2), and the laser emitting part (2) is rotatably connected to the laser receiving part (3);
the laser emitting part (2) comprises a rotating base body (21), a central channel is formed in the rotating base body (21) along the direction of a central line, a plurality of light emitting holes (22) are formed in the rotating base body (21) along the circumferential direction of the laser emitting part (2), the light emitting holes (22) all incline forward by a preset angle and are communicated with the central channel, a laser emitter (23) is arranged in the central channel, the laser emitter (23) is electrically connected with a driving circuit, the driving circuit is used for controlling the laser emitter (23) to emit detection light (24), and the detection light (24) is emitted through the light emitting holes (22);
the laser receiving part (3) comprises a fixed base body (31), a plurality of light inlet holes (32) are formed in the fixed base body (31) along the circumferential direction of the laser receiving part (3), the light inlet holes (32) are all inclined forward by preset angles, laser receivers (33) are arranged in the light inlet holes (32), the laser receivers (33) are all electrically connected with a control circuit, and the control circuit is used for generating control signals according to reflected light (34) received by the laser receivers (33).
2. The panoramic laser detection device according to claim 1, characterized in that the detection device further comprises a light splitting assembly (5), the light splitting assembly (5) comprises a base (51) and a light splitting prism (52) fixedly connected with the base (51);
an internal thread is arranged at one end of the central channel close to the power part (1), an external thread matched with the internal thread is arranged on the base (51), and the base (51) is in threaded connection with the central channel;
the number of the side surfaces of the beam splitter prism (52) is the same as that of the light emitting holes (22), the positions of the side surfaces of the beam splitter prism (52) and the light emitting holes (22) correspond to each other one by one, reflectors are arranged in the light emitting holes (22),
the detection light (24) passes through the beam splitter prism (52) and the reflector in sequence.
3. The panoramic laser detection device according to claim 1, wherein a connection hole is formed along the direction of a central line at one end of the fixed base body (31) close to the laser emitting part (2);
the laser emitting part (2) is rotatably connected with the laser receiving part (3) through a connecting shaft (4), one end of the connecting shaft (4) is rotatably connected with the central channel through a bearing, and the other end of the connecting shaft is fixedly connected with the connecting hole.
4. A panoramic laser detection device according to claim 3, characterized in that the connecting shaft (4) is a hollow connecting shaft, and the laser emitter (23) and the driving circuit are arranged in the connecting shaft (4).
5. The panoramic laser detection device according to claim 3, characterized in that the connecting shaft (4) is a stepped shaft, one end of the stepped shaft close to the laser emitting part (2) sequentially passes through a large bearing (6), a small bearing (7) and a stop nut, and a spacer is arranged between the large bearing (6) and the small bearing (7);
one end of the fixing base body (31) close to the laser emitting part (2) is provided with a screw hole on the side surface, a screw hole is arranged at the corresponding position of the connecting shaft (4), and the connecting shaft (4) is connected with the fixing base body (31) through the screw hole by a fixing screw.
6. The panoramic laser detection device according to claim 1, wherein the laser emitting part (2) and the laser receiving part (3) are both circular truncated cone structures, the upper bottom surface of the laser emitting part (2) is connected with the power part (1), the area of the upper bottom surface of the laser emitting part (2) is the same as that of the bottom surface of the power part (1), the lower bottom surface of the laser emitting part (2) is connected with the upper bottom surface of the laser receiving part (3), and the area of the lower bottom surface of the laser emitting part (2) is the same as that of the upper bottom surface of the laser receiving part (3).
7. The panoramic laser detection device according to claim 1, wherein an end of the fixing base (31) away from the laser emitting part (2) is provided with a mounting hole along a central line direction, the mounting hole is provided with a mounting bracket (8), and the plurality of laser receivers (33) are fixed on the mounting bracket (8).
8. The periscopic laser detection device of claim 1, wherein the power section (1) is a radial turbine.
9. The periscopic laser detection device according to claim 7, wherein the number of the light inlet holes (32) is 4, and the receiving field of view of each laser receiver (33) is 90 degrees.
10. A periscopic laser detection device according to claim 1, wherein the light exit apertures (22) are each provided with an optical window (9), the optical windows (9) being flush with the edge of the laser emitting portion (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110378325.3A CN113093152B (en) | 2021-04-08 | 2021-04-08 | Laser detector for panoramic view |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110378325.3A CN113093152B (en) | 2021-04-08 | 2021-04-08 | Laser detector for panoramic view |
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| CN113093152A true CN113093152A (en) | 2021-07-09 |
| CN113093152B CN113093152B (en) | 2023-02-21 |
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