Distance measuring device and laser radar

Abstract

The embodiment of the utility model relates to the technical field of radars, in particular to a distance measuring device which comprises a base. The mounting assembly is rotationally arranged on the base; the first reflecting part is mounted on the mounting assembly; the driving mechanism is connected with the mounting assembly, and the driving mechanism is used for driving the mounting assembly to rotate so as to enable the first reflecting part to rotate; the transmitting mechanism is arranged on the base, and the transmitting mechanism is kept corresponding to the first reflecting part within a preset angle range of rotation of the first reflecting part, so that the detection light transmitted by the transmitting mechanism is reflected by the first reflecting part and then is emitted out; the receiving mechanism is arranged on the base, and the receiving mechanism is kept corresponding to the first reflecting part within a preset rotating angle range of the first reflecting part, so that the receiving mechanism can receive the detection light reflected by an external barrier and the first reflecting part. In this way, the power supply and communication efficiency of the distance measuring device is high.

Description

Technical Field

[0001] The embodiments of the utility model relate to the field of radar technology, and in particular to a distance measuring device and a laser radar. Background Art

[0002] In the prior art, radars all have 360-degree rotation, which enables the radar to measure distance in a larger range. The radar includes a driving mechanism, a base, a transmitting mechanism, a receiving mechanism, a disk, a first coil assembly, a second coil assembly, a first communication component and a second communication component. The disk is rotatably arranged on the base, a control circuit board is arranged on the base, the first coil assembly and the first communication component are arranged on the base, the transmitting mechanism, the receiving mechanism, the second coil and the second communication component are all arranged on the disk, the driving mechanism is connected to the disk, and the disk is driven to rotate by the driving mechanism, so that the transmitting mechanism and the receiving mechanism rotate relative to the base, and the radar rotates 360 degrees.

[0003] However, in the process of implementing the embodiments of the utility model, the inventors found that: the power input or communication of the transmitting mechanism and the receiving mechanism is achieved by energizing the first coil assembly and the first communication component, so that the first coil assembly generates a magnetic field to act on the second coil assembly, and the first communication component generates an optical signal to act on the second communication component, thereby realizing wireless power supply or communication. Compared with direct connection, the power supply or communication efficiency of this wireless connection method is low. Utility Model Content

[0004] The embodiment of the utility model provides a distance measuring device, which has high power supply or communication efficiency.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a ranging device, including a base; a mounting assembly, rotatably arranged on the base; a first reflector, installed on the mounting assembly; a driving mechanism, connected to the mounting assembly, and the driving mechanism is used to drive the mounting assembly to rotate so as to rotate the first reflector; a transmitting mechanism, arranged on the base, within a predetermined angle range of rotation of the first reflector, the transmitting mechanism remains corresponding to the first reflector, so that the detection light emitted by the transmitting mechanism is emitted after being reflected by the first reflector; a receiving mechanism, arranged on the base, within the predetermined angle range of rotation of the first reflector, the receiving mechanism remains corresponding to the first reflector, so that the receiving mechanism can receive the detection light after passing through external obstacles and being reflected by the first reflector.

[0006] Optionally, the first reflective member is arranged to be inclined, and an angle between a rotation axis of the first reflective member and the first reflective member is an acute angle.

[0007] Optionally, the acute angle is 30 degrees to 60 degrees.

[0008] Optionally, the mounting assembly includes a disk body, the disk body is rotatably disposed on the base, the first reflector is fixed to the disk body, the driving mechanism is connected to the disk body, and the driving mechanism is used to drive the disk body to rotate.

[0009] Optionally, the mounting assembly includes a disk body and a mounting column, the disk body is rotatably disposed on the base, one end of the mounting column is fixed to the disk body, the first reflector is fixed to the other end of the mounting column, the driving mechanism is connected to the disk body, and the driving mechanism is used to drive the disk body to rotate.

[0010] Optionally, the transmitting mechanism includes a transmitter, and the transmitter is a point laser, a line laser, or a surface laser.

[0011] Optionally, the transmitting mechanism and the receiving mechanism are arranged side by side; the distance measuring device also includes a shielding member, which is arranged between the transmitting mechanism and the receiving mechanism, and is used to block the detection light of the transmitting mechanism.

[0012] Optionally, at least one of the transmitting mechanism and the receiving mechanism is arranged at an angle.

[0013] Optionally, the mounting assembly further comprises an outer cover, which is fixed to the base and covers the transmitting mechanism, the receiving mechanism and the first reflecting member. The outer cover is made of a light-transmitting material, and the detection light can pass through the outer cover.

[0014] Optionally, the mounting assembly further includes a disk body and an outer cover, the disk body is rotatably disposed on the base, the outer cover is fixed to the disk body, and the first reflector is fixed to an inner wall surface of the outer cover.

[0015] Optionally, the transmitting mechanism and the receiving mechanism are arranged along the circumference of the disk body.

[0016] Optionally, the distance measuring device further comprises an outer cover, which is fixed to the disk body and covers the transmitting mechanism, the receiving mechanism and the first reflecting member, and the outer cover is provided with a light-transmitting hole corresponding to the first reflecting member.

[0017] Optionally, the disk body is disposed on the base, and the disk body is provided with a window, the transmitting mechanism and the receiving mechanism are both exposed to the window, and along the direction in which the outer cover covers the first reflector, the projection of the first reflector at least partially overlaps with the window.

[0018] Optionally, the optical axis of the detection light emitted by the emitting mechanism is colinear with the rotation axis of the first reflecting member.

[0019] Optionally, the transmitting mechanism further includes a second reflecting member, which is tiltedly fixed to the base, and is used to reflect the detection light emitted by the transmitting mechanism to the first reflecting member.

[0020] Optionally, the driving mechanism includes a driving member, which includes a stator, a rotor and a rotating shaft, the stator is fixed to the base, the rotor is rotatably connected to the mounting assembly, one end of the rotating shaft is connected to the base, and the mounting assembly is connected to the other end of the rotating shaft.

[0021] Optionally, the driving mechanism includes a driving member, a belt and a driving wheel, the driving member is fixed to the base, the driving wheel is fixed to the output shaft of the driving member, the belt is wound around the driving wheel and the disk body, the driving member is used to drive the driving wheel to rotate, and the driving wheel drives the belt transmission, so that the disk body rotates relative to the base.

[0022] In order to solve the above technical problems, a technical solution adopted by the present utility model is: to provide a laser radar, including the above-mentioned ranging device.

[0023] The beneficial effect of the embodiment of the present application is: by directly supplying power to the transmitting mechanism and the receiving mechanism and directly communicating, the detection light emitted by the transmitting mechanism is reflected by the first reflector and then emitted to the outside world. When the detection light encounters an obstacle in the outside world, the detection light is reflected to the first reflector, and then reflected to the receiving mechanism through the first reflector, thereby realizing ranging. The driving mechanism can drive the mounting assembly to rotate so that the first reflector rotates relative to the base, thereby realizing that the ranging device can rotate 360 ​​degrees, so that the ranging device can measure the distance over a large range. Compared with the ranging device in the prior art, the ranging device provided by the present application can omit the first coil assembly, the second coil assembly, the first communication member and the first communication member. The ranging device provided by the present application can realize that the ranging device can rotate 360 ​​degrees, and can also provide stable power supply and communication for the transmitting mechanism and the receiving mechanism, and can also provide a larger load for the transmitting mechanism and the receiving mechanism, that is, it is not limited by the load. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying creative work.

[0025] Figure 1 It is a half-section view of an embodiment of the distance measuring device provided by the utility model;

[0026] Figure 2It is a full cross-sectional view of an embodiment of the distance measuring device provided by the utility model;

[0027] Figure 3 It is a half-section view of another embodiment of the distance measuring device provided by the utility model;

[0028] Figure 4 It is a full cross-sectional view of another embodiment of the distance measuring device provided by the utility model;

[0029] Figure 5 It is a view of another embodiment of the distance measuring device provided by the utility model;

[0030] Figure 6 It is a cross-sectional view of another embodiment of the distance measuring device provided by the utility model;

[0031] Figure 7 It is a view of another embodiment of the distance measuring device provided by the utility model;

[0032] Figure 8 It is a cross-sectional view of another embodiment of the distance measuring device provided by the utility model;

[0033] Fig. 9 It is a view of another embodiment of the distance measuring device provided by the utility model;

[0034] Fig.10 It is a view of another embodiment of the distance measuring device provided by the utility model.

[0035] Reference numerals:

[0036] 100. distance measuring device; 10. base;

[0037] 20. Launching mechanism; 21. Second reflecting element; 22. Launcher; 30. First reflecting element;

[0038] 40. Mounting assembly; 41. Plate; 41a. Window; 42. Mounting column; 43. Cover; 43a. Light transmission hole;

[0039] 50. driving mechanism; 51. driving member; 52. driving wheel; 53. belt;

[0040] 60. Receiving mechanism; 70. Shielding member. DETAILED DESCRIPTION

[0041] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

[0042] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by technicians in the technical field of the present invention. The terms used in this specification are only for the purpose of describing specific embodiments and are not used to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0043] In order to more conveniently explain the distance measuring device 100 , a first direction x, a second direction y, and a third direction z which are perpendicular to each other are introduced.

[0044] See also Figure 1-Figure 2The distance measuring device 100 includes a base 10, a transmitting mechanism 20, a first reflector 30, a mounting assembly 40, a driving mechanism 50 and a receiving mechanism 60. The mounting assembly 40 is rotatably arranged on the base 10, the first reflector 30 is mounted on the mounting assembly 40, the driving mechanism 50 is connected to the mounting assembly 40, and the driving mechanism 50 is used to drive the mounting assembly 40 to rotate so as to rotate the first reflector 30. The transmitting mechanism 20 is arranged on the base 10. Within the predetermined angle range of the rotation of the first reflector 30, the transmitting mechanism 20 remains corresponding to the first reflector 30, so that the detection light emitted by the transmitting mechanism 20 is emitted after being reflected by the first reflector 30. The receiving mechanism 60 is arranged on the base 10. Within the predetermined angle range of the rotation of the first reflector 30, the receiving mechanism 60 remains corresponding to the first reflector 30, so that the receiving mechanism 60 can receive the detection light after passing through external obstacles and being reflected by the first reflector 30. By directly supplying power to the transmitting mechanism 20 and the receiving mechanism 60 and directly communicating, the detection light emitted by the transmitting mechanism 20 is reflected by the first reflector 30 and then emitted to the outside. When the detection light encounters an obstacle in the outside, the detection light is reflected to the first reflector 30, and then reflected to the receiving mechanism 60 by the first reflector 30, thereby achieving distance measurement. The driving mechanism 50 can drive the mounting assembly 40 to rotate so that the first reflector 30 rotates relative to the base 10, thereby achieving 360-degree rotation of the distance measuring device 100, so that the distance measuring device 100 can measure the distance in a wide range. Compared with the distance measuring device 100 in the prior art, the distance measuring device 100 provided by the present application can omit the first coil assembly, the second coil assembly, the first communication member and the first communication member. The distance measuring device 100 provided by the present application can provide stable power supply and communication for the transmitting mechanism 20 and the receiving mechanism 60 when the distance measuring device 100 can rotate 360 ​​degrees, and can also provide a larger load for the transmitting mechanism 20 and the receiving mechanism 60, that is, it is not limited by the load.

[0045] For the above-mentioned launching mechanism 20, the launching mechanism 20 includes a launcher 22, such as Figure 2 As shown. The transmitter 22 can generate detection light, and the detection light emitted by the transmitter 22 is a point laser or a line laser or a surface laser. When the transmitting mechanism 20 is a point laser, the point laser reflected to the outside by the first reflector 30 is in a point shape, and the detection light reflected back by the external obstacle is also in a point shape. When the transmitting mechanism 20 is a line laser or a surface laser, the detection light reflected to the outside by the first reflector 30 is in a point shape, and the detection light reflected back by the external obstacle is a detection light formed by multiple points, which can carry more external obstacles or contour information of the measured object, so that the ranging device 100 can obtain more details of the external object, thereby improving the measurement accuracy.

[0046] In some embodiments, the optical axis of the detection light emitted by the transmitting mechanism 20 is colinear with the rotation axis of the first reflector 30. When the distance measuring device 100 is working, the detection light emitted by the transmitting mechanism 20 is reflected to the outside through the rotation axis of the first reflector 30, and as the first reflector 30 rotates, the point cloud formed by the detection light in the outside is a smooth arc, so that the distance measuring device 100 can obtain more accurate distance measurement on the same horizontal plane. When the optical axis of the detection light emitted by the transmitting mechanism 20 is offset from the rotation axis, the point cloud formed by the detection light in the outside is a wavy curve, that is, the detection light swings along the third direction z, affecting the distance measurement accuracy of the distance measuring device 100.

[0047] In some embodiments, there are multiple emitters 22, and at least one emitter 22 is tilted so that the detection light emitted by the emission mechanism 20 can irradiate more external objects, making the measurement accuracy of the distance measuring device 100 more accurate and the measurement range larger. For example: there are three emitters 22, the detection light of one emitter 22 is directed toward the rotation axis of the first reflector 30, and the detection lights of the other two emitters 22 are tilted up and down in the third direction z respectively. Figure 3 In the provided embodiment, the number of the emitter 22 of the emission mechanism 20 is one, and the direction of the detection light emitted by the emitter 22 is the second direction y.

[0048] In some embodiments, the transmitting mechanism 20 also includes a deflection member, which corresponds to the transmitter 22. The deflection member is used to deflect the detection light emitted by the transmitting mechanism 20 to form multiple light beams, and there are angles between some of the light beams, so that the detection light emitted by the transmitter 22 can illuminate more external objects, making the measurement accuracy of the ranging device 100 more precise and the ranging range larger.

[0049] In some embodiments, the transmitting mechanism 20 further includes a second reflecting member 21, such as Figure 1 As shown. The second reflector 21 is fixed to the base 10, and the second reflector 21 corresponds to the first reflector 30 and the emitter 22 respectively. The second reflector 21 is used to reflect the detection light emitted by the emission mechanism 20 to the first reflector 30, so that the first reflector 30 reflects the detection light to the outside. The second reflector 21 is arranged at an angle, and the rotation axis of the first reflector 30 and the second reflector 21 form an acute angle β, as shown in FIG. Figure 3-Figure 4 shown.

[0050] In different embodiments, the detection light path of the distance measuring device 100 is different. Figure 2As shown, the detection light path of the distance measuring device 100 is as follows: when observed along the first direction x, the transmitter 22 of the transmitting mechanism 20 and the receiving mechanism 60 both correspond to the second reflector 21, that is, the detection light emitted by the transmitter 22 is along the second direction y, reflected by the second reflector 21 to the first reflector 30, and then reflected to the outside through the first reflector 30, and the detection light reflected from the outside is reflected back to the receiving mechanism 60 through the first reflector 30 and the second reflector 21 in turn. Optionally, as Figure 4 As shown, the detection light path of the ranging device 100: observed along the first direction x, the transmitter 22 of the transmitting mechanism 20 corresponds to the second reflector 21, and the receiving mechanism 60 corresponds to the first reflector 30. It can be understood that the detection light emitted by the transmitting mechanism 20 is along the second direction y, and the optical axis of the detection light received by the receiving mechanism 60 is the same as the third direction z. The detection light emitted by the transmitting mechanism 20 is reflected to the first reflector 30 through the second reflector 21, and the detection light is then reflected to the outside through the first reflector 30. The detection light reflected from the outside is reflected back to the receiving mechanism 60 through the first reflector 30 in turn.

[0051] For the first reflecting member 30, Figure 3-Figure 4 As shown, the first reflector 30 is plate-shaped, has the function of reflecting the detection light from the transmitting mechanism 20, is tilted, and the angle α between the rotation axis of the first reflector 30 and the first reflector 30 is an acute angle. It should be noted that the rotation axis of the first reflector 30 is the same as the third direction z.

[0052] In some embodiments, the acute angle α is between 30 degrees and 60 degrees.

[0053] For the above-mentioned mounting assembly 40, see Figure 1-Figure 2 The mounting assembly 40 includes a disk body 41, which is rotatably mounted on the base 10, the first reflector 30 is fixed to the disk body 41, and a driving mechanism 50 is connected to the disk body 41, and the driving mechanism 50 is used to drive the disk body 41 to rotate. When the distance measuring device 100 measures distance, the driving mechanism 50 drives the disk body 41 to rotate, so that the disk body 41 rotates relative to the base 10, thereby realizing that the first reflector 30 can rotate 360 ​​degrees.

[0054] In some embodiments, the launching mechanism 20 and the receiving mechanism 60 are arranged along the circumference of the disk body 41, such as Figure 5-Figure 6 As shown. It can be understood that the transmitting mechanism 20 and the receiving mechanism 60 are arranged around the rotation circumference of the first reflector 30. Specifically, the disk body 41 is provided with a driving groove, the driving assembly is arranged in the driving groove, one end of the driving assembly is fixed to the base 10, and the other end of the driving assembly is connected to the disk body 41.

[0055] In some embodiments, the disk body 41 is disposed on the base 10, and the disk body 41 is provided with a window 41a, the transmitting mechanism 20 and the receiving mechanism 60 are both exposed to the window 41a, and along the direction in which the outer cover 43 covers the first reflective member 30, the projection of the first reflective member 30 at least partially overlaps with the window 41a. The mounting post 42 surrounds the window circumference, and the mounting post 42 provides support for the first reflective member 30.

[0056] In some embodiments, the mounting assembly 40 further includes a bearing, an inner ring of the bearing is fixed to the base 10 , and an outer ring of the bearing is fixed to the disc 41 , thereby enabling the disc 41 to rotate relative to the base 10 .

[0057] In some embodiments, the above-mentioned mounting assembly 40 further includes a mounting post 42, such as Figure 7-Figure 8 As shown. One end of the mounting post 42 is fixed to the disk body 41, and the first reflector 30 is fixed to the other end of the mounting post 42. The driving mechanism 50 is connected to the disk body 41, and the driving mechanism 50 is used to drive the disk body 41 to rotate. The mounting post 42 has the effect of lifting the first reflector 30 so that the first reflector 30 can obtain a wider viewing angle, and the mounting post 42 is rod-shaped, which reduces the occupied area of ​​the base 10, and the transmitting mechanism 20 and the receiving mechanism 60 have more installation positions. In some embodiments, there are multiple mounting posts 42, and the multiple mounting posts 42 jointly support the first reflector 30 to increase the stability of the first reflector 30.

[0058] In some embodiments, the above-mentioned mounting assembly 40 further includes an outer cover 43, such as Figure 7-Figure 8 As shown. The outer cover 43 is fixed to the base 10, and the outer cover 43 covers the transmitting mechanism 20, the receiving mechanism 60 and the first reflecting member 30. The outer cover 43 is made of a light-transmitting material, and the detection light can pass through the outer cover 43. It can be understood that the outer cover 43 is provided with a cover cavity and a cover opening, and the transmitting mechanism 20, the receiving mechanism 60 and the first reflecting member 30 are all arranged in the cover cavity, and the base 10 is closed at the cover opening, so that the transmitting mechanism 20, the receiving mechanism 60 and the first reflecting member 30 are in a closed space, reducing dust or rainwater from entering the cover cavity. When the ranging device 100 is working, the detection light emitted by the transmitting mechanism 20 is reflected by the first reflecting member 30 and then irradiated to the outside through the outer cover 43.

[0059] In some embodiments, the outer cover 43 is fixed to the disk body 41, and the first reflector 30 is fixed to the inner wall surface of the outer cover 43. Figure 1-Figure 2 When the distance measuring device 100 is working, the driving mechanism 50 drives the disk 41 to rotate, and the outer cover 43 rotates along with the disk 41. It can be understood that the outer cover 43 provides dust and water resistance for the transmitting mechanism 20, the receiving mechanism 60 and the first reflecting member 30, and also provides a stable support for the first reflecting member 30.

[0060] In some embodiments, the outer cover 43 is provided with a light-transmitting hole 43a. Figure 3-Figure 4 As shown. The light-transmitting hole 43a corresponds to the first reflector 30. When the distance measuring device 100 is working, the detection light emitted by the transmitting mechanism 20 is reflected by the first reflector 30, and then the detection light is irradiated to the outside through the light-transmitting hole of the outer cover 43. It should be noted that the distance measuring device 100 does not limit the material of the outer cover 43, and the outer cover 43 can be a light-transmitting material or a diffusely reflecting material.

[0061] For the above-mentioned receiving mechanism 60, see Figure 1 , at least one of the transmitting mechanism 20 and the receiving mechanism 60 is tilted. It can be understood that the transmitting mechanism 20 is tilted along the first direction x or the second direction y, so that the optical axis of the detection light emitted by the transmitting mechanism 20 has an angle with the plane formed by the first direction x and the third direction z, or the optical axis of the detection light emitted by the transmitting mechanism 20 has an angle with the plane formed by the second direction y and the third direction z, and by adjusting the size of the angle, the angle at which the detection light is emitted by the transmitting mechanism 20 is adjusted, and then the ranging distance can be adjusted, thereby increasing the measuring distance and measuring range of the ranging device 100. The receiving mechanism 60 is tilted along the first direction x or the second direction y, so that the optical axis of the detection light received by the receiving mechanism 60 has an angle with the plane formed by the first direction x and the third direction z, or the optical axis of the detection light received by the receiving mechanism 60 has an angle with the plane formed by the second direction y and the third direction z, and by adjusting the size of the angle, the angle at which the detection light is emitted by the receiving mechanism 60 is adjusted, which is conducive to the receiving mechanism 60 receiving the complete light spot reflected back by the detection light of the first reflector 30.

[0062] In some embodiments, the transmitting mechanism 20 and the receiving mechanism 60 are arranged side by side, such as Figure 1 The transmitting mechanism 20 and the receiving mechanism 60 are conducive to a higher integration of the distance measuring device 100, and the area of ​​the reflection surface of the first reflection member 30 or the reflection surface of the second reflection member 21 corresponding to the transmitting mechanism 20 can be reduced, making the distance measuring device 100 more compact.

[0063] In some embodiments, the transmitting mechanism 20 and the receiving mechanism 60 are arranged vertically along the third direction z. It can be understood that the transmitting mechanism 20 and the receiving mechanism 60 are arranged coaxially to reduce the risk of detection light interference between the transmitting mechanism 20 and the receiving mechanism 60. In addition, the transmitting mechanism 20 and the receiving mechanism 60 are arranged according to the path of the detection light and according to the actual situation. As long as the detection light emitted by the transmitting mechanism 20 corresponds to the first reflector 30, or the detection light emitted by the transmitter 22 corresponds to the second reflector 21, and the receiving mechanism 60 corresponds to the first reflector 30 or the receiving mechanism 60 corresponds to the second reflector 21, it is applicable. Therefore, the positional relationship between the transmitting mechanism 20 and the receiving mechanism 60 is not limited.

[0064] In some embodiments, the distance measuring device 100 further includes a shielding member 70, such as Figure 1 The shielding member 70 is disposed between the transmitting mechanism 20 and the receiving mechanism 60. The shielding member 70 has a filtering or absorbing effect on the detection light emitted by the transmitting mechanism 20. The shielding member 70 can prevent the detection light emitted by the transmitting mechanism 20 from directly acting on the receiving mechanism 60, thereby reducing the risk of distance measurement errors of the distance measuring device 100.

[0065] In some embodiments, the driving mechanism 50 includes a driving member 51, the driving member 51 includes a stator, a rotor and a rotating shaft, the stator is fixed to the base 10, the rotor is rotatably connected to the mounting assembly 40, one end of the rotating shaft is connected to the base 10, and the mounting assembly 40 is connected to the other end of the rotating shaft. When the rotor rotates, the rotor drives the rotating shaft to rotate, so that the first reflector 30 rotates relative to the base 10.

[0066] In some embodiments, the driving mechanism 50 includes a driving member 51, a belt 52 and a driving wheel 53. Fig.10 The driving member 51 is fixed to the base 10, the driving wheel 52 is fixed to the output shaft of the driving member 51, the belt 53 is wound around the driving wheel 52 and the disc 41, the driving member 51 is used to drive the driving wheel 52 to rotate, and the driving wheel 52 drives the belt 53 to transmit, so that the disc 41 rotates relative to the base 10.

[0067] In the embodiment of the present application, by directly supplying power to the transmitting mechanism 20 and the receiving mechanism 60 and directly communicating, the detection light emitted by the transmitting mechanism 20 is reflected by the first reflector 30 and then emitted to the outside. When the detection light encounters an obstacle in the outside, the detection light is reflected to the first reflector 30, and then reflected to the receiving mechanism 60 by the first reflector 30, thereby achieving distance measurement. The driving mechanism 50 can drive the mounting assembly 40 to rotate, so that the first reflector 30 rotates relative to the base 10, so that the distance measuring device 100 can rotate 360 ​​degrees, so that the distance measuring device 100 can measure distance in a large range.

[0068] The utility model also provides a laser radar embodiment, the radar includes the above-mentioned distance measuring device 100, the specific structure and function of the distance measuring device 100 can be referred to the above-mentioned embodiment, and will not be described one by one here.

[0069] It should be noted that the preferred embodiments of the utility model are given in the specification and drawings of the utility model, but the utility model can be implemented in many different forms and is not limited to the embodiments described in the specification. These embodiments are not used as additional restrictions on the content of the utility model. The purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the description of the utility model; further, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should belong to the scope of protection of the claims attached to the utility model.

Claims

1. A distance measuring device, characterized in that: include: Base; A mounting assembly, rotatably disposed on the base; A first reflector, mounted on the mounting assembly; A driving mechanism connected to the mounting assembly, the driving mechanism being used to drive the mounting assembly to rotate so as to rotate the first reflecting member; A transmitting mechanism is disposed on the base, and within a predetermined angle range of rotation of the first reflecting member, the transmitting mechanism remains corresponding to the first reflecting member, so that the detection light emitted by the transmitting mechanism is emitted after being reflected by the first reflecting member; The receiving mechanism is arranged on the base. Within a predetermined angle range of rotation of the first reflector, the receiving mechanism keeps corresponding to the first reflector, so that the receiving mechanism can receive the detection light after passing through external obstacles and being reflected by the first reflector.

2. The distance measuring device according to claim 1, characterized in that: The first reflective member is arranged in an inclined manner, and an angle between a rotation axis of the first reflective member and the first reflective member is an acute angle.

3. The distance measuring device according to claim 2, characterized in that: The acute angle is 30 degrees to 60 degrees.

4. The distance measuring device according to claim 1, characterized in that: The mounting assembly comprises a disk body, the disk body is rotatably disposed on the base, the first reflector is fixed to the disk body, the driving mechanism is connected to the disk body, and the driving mechanism is used to drive the disk body to rotate.

5. The distance measuring device according to claim 1, characterized in that: The mounting assembly includes a disk body and a mounting column, the disk body is rotatably disposed on the base, one end of the mounting column is fixed to the disk body, the first reflector is fixed to the other end of the mounting column, and the driving mechanism is connected to the disk body, and the driving mechanism is used to drive the disk body to rotate.

6. The distance measuring device according to claim 1, characterized in that: The transmitting mechanism comprises a transmitter, and the transmitter is a point laser, a line laser or a surface laser.

7. The distance measuring device according to claim 1, characterized in that: The transmitting mechanism and the receiving mechanism are arranged side by side; The distance measuring device further comprises a shielding member, which is arranged between the transmitting mechanism and the receiving mechanism and is used to block the detection light of the transmitting mechanism.

8. The distance measuring device according to claim 1, characterized in that: At least one of the transmitting mechanism and the receiving mechanism is arranged at an angle.

9. The distance measuring device according to claim 1, characterized in that: The transmitting mechanism and the receiving mechanism are coaxially arranged.

10. The distance measuring device according to any one of claims 4 or 5, characterized in that: The mounting assembly further comprises an outer cover, which is fixed to the base and covers the transmitting mechanism, the receiving mechanism and the first reflecting member. The outer cover is made of a light-transmitting material, and the detection light can pass through the outer cover.

11. The distance measuring device according to claim 1, characterized in that: The mounting assembly further comprises a disc body and an outer cover, wherein the disc body is rotatably disposed on the base, the outer cover is fixed to the disc body, and the first reflector is fixed to the inner wall surface of the outer cover.

12. The distance measuring device according to any one of claims 4 or 5, characterized in that: The transmitting mechanism and the receiving mechanism are arranged along the circumference of the disk body.

13. The distance measuring device according to claim 4, characterized in that: The distance measuring device further comprises an outer cover, which is fixed to the disk body and covers the transmitting mechanism, the receiving mechanism and the first reflecting member, and the outer cover is provided with a light-transmitting hole corresponding to the first reflecting member.

14. The distance measuring device according to any one of claims 11 or 13, characterized in that: The tray is disposed on the base and is provided with a window, the transmitting mechanism and the receiving mechanism are both exposed to the window, and along the direction in which the outer cover covers the first reflector, the projection of the first reflector at least partially overlaps with the window.

15. The distance measuring device according to claim 14, characterized in that: The optical axis of the detection light emitted by the emitting mechanism is collinear with the rotation axis of the first reflecting member.

16. The distance measuring device according to claim 1, characterized in that: The transmitting mechanism further comprises a second reflecting member, which is fixed obliquely to the base and is used for reflecting the detection light emitted by the transmitting mechanism to the first reflecting member.

17. The distance measuring device according to any one of claims 4, 5, or 11, characterized in that: The driving mechanism includes a driving member, which includes a stator, a rotor and a rotating shaft. The stator is fixed to the base, the rotor is rotatably connected to the mounting assembly, one end of the rotating shaft is connected to the base, and the mounting assembly is connected to the other end of the rotating shaft.

18. The distance measuring device according to any one of claims 4, 5, or 11, characterized in that: The driving mechanism includes a driving member, a belt and a driving wheel. The driving member is fixed to the base, the driving wheel is fixed to the output shaft of the driving member, the belt is wound around the driving wheel and the disk body, the driving member is used to drive the driving wheel to rotate, and the driving wheel drives the belt transmission, so that the disk body rotates relative to the base.

19. A laser radar, characterized in that: Comprising a distance measuring device as described in any one of claims 1-18.

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