Distance measuring device and radar

Abstract

The embodiment of the utility model discloses a distance measuring device and a radar, and the distance measuring device comprises a transmitting assembly which is used for generating an optical signal; the receiving component is used for receiving the optical signal; the rotary reflecting part comprises a main body part, a first reflecting part and a second reflecting part, the main body part is rotationally arranged, and the first reflecting part and the second reflecting part are arranged on the main body part at intervals in the circumferential direction of the rotating axis of the main body part, so that the first reflecting part and the second reflecting part rotate corresponding to the transmitting assembly and the receiving assembly; the first reflecting part and the second reflecting part are both used for reflecting the optical signals emitted by the emitting assembly to the outside, and the rotary reflecting parts are also used for reflecting the optical signals reflected back by external objects to the receiving assembly. Compared with a distance measuring device in the prior art, the distance measuring device provided by the utility model can omit upper and lower wireless power supply modules and an optical communication module, has the advantage of high integration level, and can reduce the production cost.

Description

Technical Field

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

[0002] Laser radar is an active distance detection device that uses photoelectric detection technology. Radar in the prior art usually includes an upper radar part and a lower radar part, wherein the upper radar part rotates relative to the lower radar part, and the transmitting component and the receiving component are arranged on the upper radar part, but the circuit board is arranged on the lower radar part, resulting in the need for power supply and optical communication between the upper radar part and the lower radar part, resulting in a relatively complicated structure of the radar and a low degree of integration. Utility Model Content

[0003] The embodiments of the utility model provide a distance measuring device and a radar, aiming to solve the problem of low integration of radars in the prior art.

[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a distance measuring device, comprising:

[0005] A transmitting component for generating an optical signal;

[0006] A receiving component, used for receiving the optical signal;

[0007] A rotating reflector includes a main body, a first reflector and a second reflector. The main body is rotatably arranged, and the first reflector and the second reflector are circumferentially spaced on the main body along the rotation axis of the main body, so that the first reflector and the second reflector can rotate relative to the transmitting component and the receiving component. The first reflector and the second reflector are both used to reflect the optical signal emitted by the transmitting component to the outside world, and the rotating reflector is also used to reflect the optical signal reflected back by an external object to the receiving component.

[0008] Optionally, the first reflecting portion and the second reflecting portion both extend along a first direction.

[0009] The second direction is perpendicular to the first direction, the transmitting component and the receiving component are located on one side of the main body along the second direction, and the transmitting component is located on one side of the receiving component along the first direction.

[0010] Optionally, at least one of the transmitting component and the receiving component is arranged to be inclined relative to the second direction.

[0011] Optionally, the distance measuring device further includes a partition, and the partition is arranged between the transmitting component and the receiving component.

[0012] Optionally, the first reflecting portion and the second reflecting portion both extend along a third direction.

[0013] The fourth direction is perpendicular to the third direction, the transmitting component and the receiving component are located on one side of the rotating reflector along the fourth direction, the transmitting component is located on one side of the receiving component along the fifth direction, and the third direction, the fourth direction and the fifth direction are perpendicular to each other.

[0014] Optionally, the transmitting component includes a first optical component and a transmitter, the first optical component is arranged corresponding to the receiving component and the transmitter, and the transmitter is arranged corresponding to the first optical component;

[0015] Wherein, the first optical component is used to transmit the optical signal generated by the transmitter so that the optical signal emitted by the transmitting component reaches the rotating reflective component; the first optical component is also used to reflect the optical signal reflected by the rotating reflective component to itself to the receiving component.

[0016] Optionally, the first optical component is a transflective mirror.

[0017] Optionally, the first optical component has a reflective function, and the first optical component is provided with a light-transmitting hole, and the light-transmitting hole is used for allowing the optical signal emitted by the emitting component to pass through.

[0018] Optionally, the transmitting assembly includes a second optical element and a transmitter, and the first reflecting portion and the second reflecting portion are both arranged along a sixth direction;

[0019] The transmitter and the receiving component are located on one side of the main body along the seventh direction, and the transmitter and the receiving component are arranged along the sixth direction;

[0020] The second optical component is located on one side of the transmitter and the receiving component along the eighth direction, the second optical component has a reflection function, and the second optical component is arranged corresponding to the first reflection part, the second reflection part, the transmitter and the receiving component; the sixth direction, the seventh direction and the eighth direction are perpendicular to each other.

[0021] Optionally, the rotating reflector further includes at least one third reflective portion, the third reflective portion is disposed on the main body, and the third reflective portion, the first reflective portion, and the second reflective portion are disposed along the circumferential direction of the rotation axis of the main body.

[0022] Optionally, at least one of the first reflecting portion, the second reflecting portion and the third reflecting portion is arranged to be inclined relative to the rotation axis of the main body.

[0023] Optionally, there are multiple receiving components, and the multiple receiving components are arranged side by side.

[0024] Optionally, the transmitting component includes a transmitter, and the transmitter is a point laser, a line laser, or a surface laser.

[0025] Optionally, the distance measuring device further comprises a mounting base, and the transmitting component and the receiving component are arranged on the mounting base.

[0026] Optionally, the distance measuring device further comprises an outer cover, which is disposed on the transmitting component, the receiving component and the rotating reflector and is connected to the mounting seat, and the outer cover allows the optical signal to pass through.

[0027] Optionally, the outer cover is provided with a shell body and a light-transmitting portion, the light-transmitting portion is connected to the shell body, the light-transmitting portion is arranged corresponding to the transmitting component, the receiving component and the rotating reflector, and the light-transmitting portion allows the optical signal to pass through.

[0028] Optionally, the distance measuring device further includes a driving member, which is drivingly connected to the main body to drive the main body to rotate.

[0029] Optionally, the driving member includes a first motor, the first motor includes a stator and a rotor, the stator is arranged on the mounting seat; the rotor is rotatably arranged relative to the stator, and the rotor is drivingly connected to the main body.

[0030] Optionally, the driving member also includes a first code disk and a first photoelectric switch, the first code disk is drivingly connected to the rotor, the first code disk is provided with a first perforation and a plurality of second perforations in sequence along the circumferential direction, the shape of the first perforation is different from the shape of the second perforation; the first photoelectric switch is arranged corresponding to the code disk.

[0031] Optionally, the driving member includes a second motor, a first gear and a second gear, and an output end of the second motor is connected to the first gear to drive the first gear to rotate;

[0032] The second gear is located at one side of the first gear, the second gear is meshed with the first gear, and the second gear is drivingly connected to the main body.

[0033] Optionally, the driving member also includes a second code disk and a second photoelectric switch, the second code disk is drivingly connected to the second gear, the second code disk is provided with a third perforation and multiple fourth perforations in sequence along the circumferential direction, the shape of the third perforation is different from the shape of the fourth perforation; the second photoelectric switch is arranged corresponding to the code disk.

[0034] Optionally, the driving member includes a third motor, a first pulley, a second pulley and a belt;

[0035] The first pulley is coaxially arranged with the output shaft of the third motor, and the first pulley is drivingly connected to the third motor; the second pulley is arranged on one side of the first pulley, and the main body is arranged on the second pulley; the belt sleeve is arranged on the first pulley and the second pulley.

[0036] Optionally, the driving member also includes a third code disk and a third photoelectric switch, the third code disk is connected to the second pulley, the third code disk is provided with a fifth through-hole and a plurality of sixth through-holes in sequence along the circumferential direction, and the shape of the fifth through-hole is different from that of the sixth through-hole; the third photoelectric switch is arranged corresponding to the third code disk.

[0037] According to another aspect of the utility model, a technical solution adopted by the utility model is: to provide a radar including the above-mentioned ranging device.

[0038] The beneficial effect of the embodiment of the utility model is that, different from the prior art, the distance measuring device in the utility model includes a transmitting assembly, a receiving assembly and a rotating reflector, wherein the transmitting assembly is used to generate an optical signal, and the receiving assembly is used to receive the optical signal. The rotating reflector includes a main body, a first reflector and a second reflector, and the main body is rotatably arranged. The first reflector and the second reflector both have a reflection function, and the first reflector and the second reflector are both arranged on the surface of the main body, and the first reflector and the second reflector are arranged at intervals along the circumferential direction of the rotation axis of the main body. The first reflector and the second reflector are arranged corresponding to the transmitting assembly and the receiving assembly, so when the main body rotates, the first reflector and the second reflector rotate with the main body, and the first reflector and the second reflector rotate to the front of the transmitting assembly and the receiving assembly in turn. The first reflector and the second reflector are both used to reflect the optical signal emitted by the transmitting assembly to the outside world, and the rotating reflector is also used to reflect the optical signal reflected back by the external object to the receiving assembly. Compared with the distance measuring device in the prior art, the distance measuring device provided by the present application can omit the upper and lower wireless power supply modules and the optical communication module, and the distance measuring device provided by the present application has the advantages of high integration and can reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0040] Figure 1 It is a structural schematic diagram of a distance measuring device in one embodiment of the utility model;

[0041] Figure 2 It is a structural schematic diagram of a distance measuring device in one embodiment of the utility model;

[0042] Figure 3 It is a structural schematic diagram of a distance measuring device in one embodiment of the utility model;

[0043] Figure 4 It is a structural schematic diagram of a distance measuring device in one embodiment of the utility model;

[0044] Figure 5 It is a structural schematic diagram of a distance measuring device in one embodiment of the utility model;

[0045] Figure 6 It is an exploded schematic diagram of a distance measuring device in one embodiment of the utility model;

[0046] Figure 7 It is a structural schematic diagram of a distance measuring device in one embodiment of the utility model;

[0047] Figure 8 It is a structural schematic diagram of a distance measuring device in one embodiment of the utility model;

[0048] Fig. 9 It is a structural schematic diagram of a distance measuring device in one embodiment of the utility model;

[0049] Fig.10 It is a structural schematic diagram of a distance measuring device in one embodiment of the utility model;

[0050] Fig.11 This is a schematic diagram of the structure of the first optical component of the distance measuring device in one embodiment of the utility model;

[0051] Fig.12 It is a partial structural schematic diagram of a distance measuring device in one embodiment of the utility model;

[0052] Fig.13 It is a partial structural schematic diagram of a distance measuring device in one embodiment of the utility model.

[0053] Description of reference numerals:

[0054] 100. Distance measuring device;

[0055] 1. Transmitting assembly; 11. Transmitter; 12. Transmitting lens; 13. First optical element; 131. Light transmission hole; 14. Second optical element;

[0056] 2. Receiving component; 21. Receiver; 22. Receiving lens;

[0057] 3. Rotating reflector; 31. Main body; 32. First reflector; 33. Second reflector; 34. Third reflector;

[0058] 4. Mounting seat; 41. Bottom plate; 42. Side plate;

[0059] 5. Separator;

[0060] 6. Outer cover;

[0061] 7. Driving member; 71a. first motor; 711a. stator; 712a. rotor; 71b. second motor; 71c. third motor; 72. first gear; 73. second gear; 74. first pulley; 75. second pulley; 76. belt; 77a. first code disc; 771a. first perforation; 772a. second perforation; 77b. second code disc; 771b. third perforation; 772b. fourth perforation; 77c. third code disc; 771c. fifth perforation; 772c. sixth perforation; 78a. first photoelectric switch; 78b. second photoelectric switch; S1. first direction; S2. second direction; S3. third direction; S4. fourth direction; S5. fifth direction; S6. sixth direction; S7. seventh direction; S8. eighth direction. DETAILED DESCRIPTION

[0062] 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.

[0063] 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.

[0064] See also Figures 1 to 3The utility model provides a distance measuring device 100, which includes a transmitting component 1, a receiving component 2 and a rotating reflector 3, wherein the transmitting component 1 is used to generate an optical signal. The receiving component 2 is used to receive an optical signal. The rotating reflector 3 includes a main body 31, a first reflector 32 and a second reflector 33, wherein the main body 31 is roughly block-shaped, and the main body 31 is rotatably arranged, and the main body 31 provides a mounting base for the first reflector 32 and the second reflector 33. The first reflector 32 and the second reflector 33 both have a reflection function, and the first reflector 32 and the second reflector 33 are both arranged on the surface of the main body 31, and the first reflector 32 and the second reflector 33 are arranged at intervals along the circumferential direction of the rotation axis L of the main body 31. The first reflector 32 and the second reflector 33 are arranged corresponding to the transmitting component 1 and the receiving component 2, so when the main body 31 rotates, the first reflector 32 and the second reflector 33 rotate with the main body 31, and the first reflector 32 and the second reflector 33 rotate to the front of the transmitting component 1 and the receiving component 2 in sequence. The first reflecting part 32 and the second reflecting part 33 are both used to reflect the optical signal emitted by the transmitting component 1 to the outside, and the rotating reflecting member 3 is also used to reflect the optical signal reflected back by the external object to the receiving component 2. Compared with the distance measuring device 100 in the prior art, the distance measuring device 100 provided by the present application can omit the upper and lower wireless power supply modules and the optical communication module. The distance measuring device 100 provided by the present application has the advantage of high integration and can reduce production costs.

[0065] For the above-mentioned rotating reflector 3, in some embodiments, the main body 31 of the rotating reflector 3 is a carrier, and the first reflector 32 and the second reflector 33 are reflective coatings, so that the rotating reflector 3 has a reflective function. For example, the rotating reflector 3 is a reflector, the main body 31 is glass, and the first reflector 32 and the second reflector 33 are reflective coatings disposed on the glass.

[0066] See also Figure 4 In some embodiments, the rotating reflector 3 is formed by bonding two reflectors together. In this case, the rotating reflector 3 does not include the main body 31 .

[0067] See also Figure 5 In some embodiments, the rotating reflector 3 can also be a triangular prism structure formed by bonding three reflectors, the center of the triangular prism is hollow, and the two reflectors are the first reflective portion 32 and the second reflective portion 33 respectively.

[0068] See also Figure 5In some embodiments, the rotating reflector 3 may also be an integrally formed structure, and a plurality of smooth surfaces are preset on its surface, and each smooth surface forms the first reflector 32 and the second reflector 33. For example, the rotating reflector 3 is an integrally formed metal structure, and when the roughness of the metal surface is low, the smooth metal surface may form the first reflector 32 and the second reflector 33. When the rotating reflector 3 is an integrally formed metal structure, the rotating reflector 3 may be formed by a casting process, and the rotating reflector 3 may also be formed by a sheet metal process, for example, the rotating reflector 3 may be formed by bending a smooth metal plate. It should be noted that the rotating reflector 3 is not limited to metal, and for example, its material may also be non-metal such as plastic.

[0069] In some embodiments, when the rotating reflector 3 has only the first reflective portion 32 and the second reflective portion 33, the rotating reflector 3 is roughly plate-shaped, and correspondingly, the main body 31 is also plate-shaped, and the first reflective portion 32 and the second reflective portion 33 are respectively arranged on two opposite side surfaces of the main body 31.

[0070] For the above-mentioned rotating reflector 3 , since the main body 31 is the main part of the rotating reflector 3 , the rotation axis L of the main body 31 is also the rotation axis of the rotating reflector 3 , that is, the rotation axis L of the rotating reflector 3 is also L.

[0071] See also Figure 2 and Figure 3 In some embodiments, the first reflective portion 32 and the second reflective portion 33 both extend along the first direction S1. Specifically, the first reflective portion 32 and the second reflective portion 33 are arranged opposite to each other. The second direction S2 is perpendicular to the first direction S1, and the transmitting component 1 and the receiving component 2 are located on one side of the main body 31 along the second direction S2. The transmitting component 1 is located on one side of the receiving component 2 along the first direction S1, that is, the transmitting component 1 and the receiving component 2 are arranged side by side along the first direction S1.

[0072] See also Figure 7 In some embodiments, at least one of the transmitting component 1 and the receiving component 2 is tilted relative to the second direction S2. For example, the transmitting component 1 is tilted relative to the second direction S2, or the receiving component 2 is tilted relative to the second direction S2, or both the transmitting component 1 and the receiving component 2 are tilted relative to the second direction S2.

[0073] When the transmitting component 1 is tilted relative to the second direction S2, the angle at which the transmitting component 1 emits the light signal can be adjusted, thereby adjusting the ranging distance, and increasing the measuring distance to a certain extent.

[0074] When the receiving component 2 is tilted relative to the second direction S2 , it is beneficial for the receiving component 2 to receive the complete light spot reflected back by the rotating reflector 3 .

[0075] See also Figures 2 to 8 In some embodiments, the distance measuring device 100 further includes a partition 5, which is roughly plate-shaped and is disposed between the transmitting component 1 and the receiving component 2, thereby reducing interference of optical signals between the transmitting component 1 and the receiving component 2.

[0076] Furthermore, the partition 5 extends toward the main body 31 to improve the separation effect between the transmitting component 1 and the receiving component 2 .

[0077] See also Fig. 9 In some embodiments, the first reflecting portion 32 and the second reflecting portion 33 both extend along the third direction S3, and the first reflecting portion 32 and the second reflecting portion 33 are arranged opposite to each other.

[0078] The fourth direction S4 is perpendicular to the third direction S3. The transmitting component 1 and the receiving component 2 are located on one side of the rotating reflector 3 along the fourth direction S4. The transmitting component 1 is located on one side of the receiving component 2 along the fifth direction S5. The third direction S3, the fourth direction S4 and the fifth direction S5 are perpendicular to each other.

[0079] See also Fig. 9 In some embodiments, the transmitting component includes a first optical component 13 and a transmitter 11. The first optical component 13 has the function of reflecting light signals and transmitting light signals at the same time. The first optical component 13 is arranged corresponding to the receiving component 2 and the transmitter 11. The transmitter 11 is used to generate a light signal. The light signal generated by the transmitter 11 passes through the first optical component 13 and reaches the rotating reflector 3. The rotating reflector 3 reflects the light signal to the outside world. After the light signal reaches an external object, the external object reflects the light signal to the rotating reflector 3. The rotating reflector 3 reflects the reflected light signal to the first optical component 13. The first optical component 13 then reflects the light signal to the receiving component 2.

[0080] In some embodiments, the first optical element 13 is a transflective mirror, which has the functions of transmitting and reflecting light. When a light signal enters the transflective mirror, a portion of the light signal passes through the transflective mirror, while another portion of the light signal is reflected back by the transflective mirror.

[0081] The above-mentioned transflective mirror may be in the form of a beam splitter, or may be a coated optical glass or a coated transparent flat plate.

[0082] See also Fig.11 In some embodiments, the first optical element 13 has a reflective function, and the first optical element 13 is provided with a light-transmitting hole 131, the light-transmitting hole 131 is provided corresponding to the emitter 11, and the light-transmitting hole 131 is used for allowing the light signal generated by the emitter 11 to pass through, so that the first optical element 13 also has the function of transmitting the light signal.

[0083] When the distance measuring device 100 is working, the light signal generated by the transmitter 11 passes through the first optical component 13 through the light-transmitting hole 131 and reaches the rotating reflector 3, and the rotating reflector 3 reflects the light signal to the outside world. The external object reflects the light signal to the rotating reflector 3, and the rotating reflector 3 reflects the reflected light signal to the first optical component 13, and the first optical component 13 then reflects the light signal to the receiving component 2. Correspondingly, the first optical component 13 can be a structure with a perforation on a reflector or other objects with a reflective function.

[0084] See also Figure 3 , Figure 6 , Figure 8 and Fig.10 In some embodiments, the rotating reflector 3 further includes at least one third reflector 34, which has a reflective function and is disposed on the outer surface of the main body 31. The third reflector 34, the first reflector 32, and the second reflector 33 are disposed along the circumference of the rotation axis L of the main body 31. At this time, the main body 31 is roughly in the shape of a triangular prism, and the first reflector 32, the second reflector 33, and the third reflector 34 are respectively disposed on three sides of the main body 31. Arranging multiple reflectors can obtain optical signals at different angles, which can improve the measurement effect.

[0085] For the rotating reflector 3, when the rotating reflector 3 includes a first reflective portion 32, a second reflective portion 33 and a third reflective portion 34, the rotating reflector 3 can be in the shape of a triangular prism, and the first reflective portion 32, the second reflective portion 33 and the third reflective portion 34 can be respectively arranged on the three side surfaces of the main body portion 31 in the shape of a triangular prism, the first reflective portion 32, the second reflective portion 33 and the third reflective portion 34 are connected to each other, or the first reflective portion 32, the second reflective portion 33 and the third reflective portion 34 are arranged at intervals from each other, or any two of the first reflective portion 32, the second reflective portion 33 and the third reflective portion 34 are connected to each other.

[0086] In some embodiments, the rotating reflector 3 has more than four reflective parts, and the multiple reflective parts are arranged at intervals along the circumferential direction of the rotation axis L of the main body 31. For ease of installation, the main body 31 is roughly prism-shaped, and the number of prisms in the main body 31 is the same as the number of reflective parts. For example, when the rotating reflector 3 is provided with four reflective parts, the main body 31 is roughly quadrangular-shaped.

[0087] In a specific embodiment, when the rotating reflector 3 is provided with a first reflective portion 32, a second reflective portion 33, a third reflective portion 34 and a fourth reflective portion (not shown), the main body 31 is roughly in the shape of a quadrangular prism, and the first reflective portion 32, the second reflective portion 33, the third reflective portion 34 and the fourth reflective portion are respectively arranged on the four sides of the main body 31.

[0088] In a specific embodiment, when the rotating reflector 3 is provided with a first reflective portion 32, a second reflective portion 33, a third reflective portion 34, a fourth reflective portion and a fifth reflective portion (not shown in the figure), the main body 31 is roughly in the shape of a pentagonal prism, and the first reflective portion 32, the second reflective portion 33, the third reflective portion 34, the fourth reflective portion and the fifth reflective portion are respectively arranged on the five side surfaces of the main body 31.

[0089] In some embodiments, at least one of the first reflective portion 32, the second reflective portion 33, and the third reflective portion 34 is relative to the rotation axis L (relative to the rotation axis L of the main body portion 31). Figure 2 The optical signals reflected or reflected back by the first reflecting part 32, the second reflecting part 33 and the third reflecting part 34 can be placed in planes at different heights, thereby obtaining a better measurement effect.

[0090] In a specific embodiment, the first reflection portion 32 is disposed obliquely relative to the rotation axis L of the main body portion 31 .

[0091] In a specific embodiment, the second reflection portion 33 is disposed obliquely relative to the rotation axis L of the main body portion 31 .

[0092] In a specific embodiment, the third reflective portion 34 is disposed obliquely relative to the rotation axis L of the main body portion 31 .

[0093] In a specific embodiment, the first reflecting portion 32 and the second reflecting portion 33 are both arranged to be inclined relative to the rotation axis L of the main body portion 31 .

[0094] In a specific embodiment, the first reflecting portion 32 and the third reflecting portion 34 are both arranged to be inclined relative to the rotation axis L of the main body portion 31 .

[0095] In a specific embodiment, the second reflecting portion 33 and the third reflecting portion 34 are both arranged to be inclined relative to the rotation axis L of the main body portion 31 .

[0096] In a specific embodiment, the first reflecting portion 32 , the second reflecting portion 33 and the third reflecting portion 34 are all arranged to be inclined relative to the rotation axis L of the main body portion 31 .

[0097] See also Fig.10 In some embodiments, the transmitting assembly 1 includes a second optical element 14 and a transmitter 11, and the transmitter 11 is used to generate an optical signal. The first reflecting portion 32 and the second reflecting portion 33 are both arranged along the sixth direction S6. When the rotating reflecting member 3 has a third reflecting portion 34, the third reflecting portion 34 is also arranged along the sixth direction S6.

[0098] The transmitter 11 and the receiving component 2 are located on one side of the main body 31 along the seventh direction S7, and the transmitter 11 and the receiving component 2 are arranged along the sixth direction S6. The second optical component 14 is located on one side of the transmitter 11 and the receiving component 2 along the eighth direction S8. The second optical component 14 has a reflection function. The second optical component 14 is arranged corresponding to the first reflection part 32, the second reflection part 33, the transmitter 11 and the receiving component 2. Therefore, the optical signal emitted by the transmitter 11 first reaches the second optical component 14, and then is reflected by the second optical component 14 to the rotating reflection part 3. The optical signal reflected back by the external object is reflected by the rotating reflection part 3 to the second optical component 14, and then reflected by the second optical component 14 to the receiving component 2.

[0099] See also Figure 1 In some embodiments, a plurality of receiving components 2 are provided, and the plurality of receiving components 2 are arranged side by side. When the transmitting component 1 is a line light source, the light signal emitted by the transmitting component 1 is in the shape of a line. In this case, the plurality of receiving components 2 can increase the field of view. For a single frame, more point clouds can be obtained, thereby obtaining richer details of external objects.

[0100] See also Figure 1 In some embodiments, the transmitting component 1 includes a transmitter 11, and the transmitter 11 is a point laser, a line laser, or a surface laser.

[0101] When the emitting component 1 is a point laser, the optical signal reflected to the outside by the rotating reflector 3 is in a point shape, and the optical signal reflected back by the external object is also in a point shape.

[0102] When the transmitting component 1 is a line laser or a surface laser, the light signal reflected to the outside by the rotating reflector 3 is point-shaped, and the light signal reflected back by the external object is multiple points, which can carry more contour information of the object being measured, so that the ranging device 100 can obtain more details of the external object and improve the measurement accuracy.

[0103] See also Figure 1 and Figure 2 In some embodiments, the distance measuring device 100 further includes a mounting base 4, which is substantially block-shaped and used to provide a mounting base for other components. The transmitting component 1 and the receiving component 2 are disposed on the mounting base 4 to achieve fixed installation.

[0104] The mounting base 4 includes a bottom plate 41 and a side plate 42. The bottom plate 41 is horizontally arranged, and the rotating reflector 3 is indirectly mounted on the bottom plate 41. The side plate 42 is vertically arranged, and one end of the side plate 42 is connected to the bottom plate 41. The transmitting component 1 and the receiving component 2 are mounted on the side plate 42.

[0105] See also Figure 1In some embodiments, the ranging device 100 further includes an outer cover 6, which is roughly in the shape of a cover. The outer cover 6 covers the transmitting component 1, the receiving component 2 and the rotating reflector 3 and is connected to the mounting seat 4 to seal the transmitting component 1, the receiving component 2 and the rotating reflector 3, thereby preventing the transmitting component 1, the receiving component 2 and the rotating reflector 3 from being disturbed by impurities such as water vapor and dust.

[0106] In some embodiments, the outer cover 6 is a fully enclosed structure, and the outer cover 6 can transmit light signals. Therefore, the light signals reflected by the first reflecting part 32, the second reflecting part 33 and the third reflecting part 34 of the rotating reflector 3 can pass through the cover, and the light signals reflected back by external objects can pass through the cover to reach the rotating emitting element.

[0107] In some embodiments, the outer cover 6 is a fully enclosed structure, and the outer cover 6 includes a shell body (not shown) and a light-transmitting portion (not shown), and the shell body is connected to the mounting seat 4. The light-transmitting portion is connected to the shell body, and the light-transmitting portion is arranged corresponding to the transmitting component 1, the receiving component 2 and the rotating reflector 3. The light-transmitting portion can transmit light signals, so the light signals reflected by the first reflecting portion 32, the second reflecting portion 33 and the third reflecting portion 34 of the rotating reflector 3 can pass through the light-transmitting portion, and the light signals reflected back by the external objects can pass through the light-transmitting portion to reach the rotating transmitting component.

[0108] In some embodiments, the distance measuring device 100 is not provided with an outer cover 6, that is, the distance measuring device 100 is an open structure.

[0109] See also Figures 2 to 6 In some embodiments, the distance measuring device 100 further includes a driving member 7, which is used to provide the power required for the rotating reflector 3 to rotate. The driving member 7 is drivingly connected to the main body 31 to drive the main body 31 to rotate.

[0110] See also Figure 6 In some embodiments, the driving member includes a first motor 71a, and the first motor 71a includes a stator 711a and a rotor 712a, wherein the stator 711a is a non-movable part, and the stator 711a is disposed on the mounting seat 4, specifically, the stator 711a is disposed on the bottom plate 41 of the mounting seat 4 to achieve fixed installation. The rotor 712a is disposed relative to the stator 711a, and the rotor 712a is rotationally connected to the stator 711a, and the rotor 712a is drivingly connected to the main body 31 of the rotating reflective member 3, that is, the main body 31 is disposed on the rotor 712a, and when the rotor 712a rotates relative to the stator 711a, the rotor 712a drives the rotating reflective member 3 to rotate.

[0111] See also Figure 6In some embodiments, the driving member further includes a first code disk 77a and a first photoelectric switch 78a. The first code disk 77a is substantially cylindrical and is drivingly connected to the rotor 712a. When the first motor 71a rotates, the first motor 71a drives the code disk to rotate synchronously. The first code disk 77a is provided with a first through hole 771a and a plurality of second through holes 772a in sequence along the circumferential direction. The shape of the first through hole 771a is different from the shape of the second through hole 772a.

[0112] Photoelectric switch is the abbreviation of photoelectric proximity switch, which uses the blocking or reflection of the light beam by the detected object to connect the circuit by the synchronous circuit, thereby detecting the presence or absence of the object. The first photoelectric switch 78a is set corresponding to the first code disk 77a. The first photoelectric switch 78a can identify the first perforation 771a according to the different light blocking time of the first perforation 771a and the second perforation 772a, and then determine the rotation angle of the rotating reflector 3 according to the rotation speed of the first motor 71a.

[0113] See also Fig.12 In some embodiments, the driving member includes a second motor 71b, a first gear 72 and a second gear 73. The output end of the second motor 71b is connected to the first gear 72 to drive the first gear 72 to rotate. The second gear 73 is located on one side of the first gear 72. The axis of the second gear 73 is parallel to the axis of the first gear 72. The second gear 73 is meshed with the first gear 72. Therefore, when the first gear 72 rotates under the drive of the second motor 71b, the first gear 72 can drive the second gear 73 to rotate. The second gear 73 is drivingly connected to the main body 31, that is, the main body 31 is set on the second gear 73. Therefore, when the second gear 73 rotates, the second gear 73 drives the entire rotating reflector 3 to rotate.

[0114] See also Fig.12 In some embodiments, the driving member further includes a second code disk 77b and a second photoelectric switch 78b. The second code disk 77b is roughly cylindrical and is drivingly connected to the second gear 73. Therefore, when the second gear 73 rotates, the second code disk 77b is driven to rotate synchronously. The second code disk 77b is provided with a third through hole 771b and a plurality of fourth through holes 772b in sequence along the circumferential direction. The shape of the third through hole 771b is different from that of the fourth through hole 772b. The second photoelectric switch 78b is provided corresponding to the second code disk 77b. The second photoelectric switch 78b can identify the third through hole 771b according to the different shading time of the third through hole 771b and the fourth through hole 772b, and then the rotation angle of the rotating reflector 3 can be determined according to the rotation speed of the second motor 71b and the transmission ratio of the first gear 72 and the second gear 73.

[0115] See also Fig.13In some embodiments, the driving member includes a third motor 71c, a first pulley 74, a second pulley 75 and a belt 76. The first pulley 74 is coaxially arranged with the output shaft of the third motor 71c, and the first pulley 74 is drivingly connected to the third motor 71c, so that when the third motor 71c rotates, the first pulley 74 is driven to rotate synchronously. The second pulley 75 is arranged on one side of the first pulley 74, and the main body 31 is arranged on the second pulley 75, that is, the main body 31 is installed on the second pulley 75, and the belt 76 is sleeved on the first pulley 74 and the second pulley 75. When the first pulley 74 rotates, the first pulley 74 drives the second pulley 75 to rotate through the belt 76, and the second pulley 75 drives the entire rotating reflector 3 to rotate.

[0116] See also Fig.13 In some embodiments, the driving member further includes a third code disc 77c and a third photoelectric switch (not shown), and the third code disc 77c is connected to the second pulley 75, so the third code disc 77c rotates synchronously with the second pulley 75. The outer edge of the third code disc 77c is sequentially provided with a fifth through hole 771c and a plurality of sixth through holes 772c along the circumferential direction, and the shape of the fifth through hole 771c is different from the shape of the sixth through hole 772c.

[0117] The third photoelectric switch is set corresponding to the third code disk 77c. When the third code disk 77c rotates, the fifth perforation 771c and the sixth perforation 772c pass through the third photoelectric switch in sequence. The third photoelectric switch can identify the fifth perforation 771c according to the different shading time of the fifth perforation 771c and the sixth perforation 772c, and then determine the rotation angle of the rotating reflector 3 according to the rotation speed of the third motor 71c and the transmission ratio of the first pulley 74 and the second pulley 75.

[0118] See also Figure 6 For the above-mentioned transmitting component 1, the transmitting component 1 also includes a transmitting lens 12, and the transmitting lens 12 is set corresponding to the transmitter 11, and the transmitting lens 12 is used to gather the optical signal emitted by the transmitter 11.

[0119] See also Figure 6 For the above-mentioned receiving component 2, the receiving component 2 includes a receiver 21 and a receiving lens 22. The receiver 21 is used to convert the optical signal reflected by the external object into an electrical signal. The receiving lens 22 is set corresponding to the receiver 21. The receiving lens 22 is used to gather the optical signal reflected by the external object, so that the light spot received by the receiver 21 can be more complete.

[0120] In summary, the distance measuring device 100 includes a transmitting component 1, a receiving component 2 and a rotating reflector 3, wherein the transmitting component 1 is used to generate an optical signal, and the receiving component 2 is used to receive an optical signal. The rotating reflector 3 includes a main body 31, a first reflecting part 32 and a second reflecting part 33, and the main body 31 is rotatably arranged. The first reflecting part 32 and the second reflecting part 33 both have a reflection function, and the first reflecting part 32 and the second reflecting part 33 are both arranged on the surface of the main body 31, and the first reflecting part 32 and the second reflecting part 33 are arranged at intervals along the circumferential direction of the rotation axis L of the rotating reflector 3. The first reflecting part 32 and the second reflecting part 33 are arranged corresponding to the transmitting component 1 and the receiving component 2, so when the main body 31 rotates, the first reflecting part 32 and the second reflecting part 33 rotate with the main body 31, and the first reflecting part 32 and the second reflecting part 33 rotate to the front of the transmitting component 1 and the receiving component 2 in sequence. The first reflecting part 32 and the second reflecting part 33 are both used to reflect the optical signal emitted by the transmitting component 1 to the outside, and the rotating reflecting member 3 is also used to reflect the optical signal reflected back by the external object to the receiving component 2. Compared with the distance measuring device 100 in the prior art, the distance measuring device 100 provided by the present application can omit the upper and lower wireless power supply modules and the optical communication module. The distance measuring device 100 provided by the present application has the advantage of high integration and can reduce production costs.

[0121] The utility model further provides a radar (not shown), which includes the above-mentioned distance measuring device 100.

[0122] 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: A transmitting component for generating an optical signal; A receiving component, used for receiving the optical signal; A rotating reflector includes a main body, a first reflector and a second reflector. The main body is rotatably arranged, and the first reflector and the second reflector are circumferentially spaced on the main body along the rotation axis of the main body, so that the first reflector and the second reflector can rotate relative to the transmitting component and the receiving component. The first reflector and the second reflector are both used to reflect the optical signal emitted by the transmitting component to the outside world, and the rotating reflector is also used to reflect the optical signal reflected back by an external object to the receiving component.

2. The distance measuring device according to claim 1, characterized in that: The first reflecting portion and the second reflecting portion both extend along a first direction, The second direction is perpendicular to the first direction, the transmitting component and the receiving component are located on one side of the main body along the second direction, and the transmitting component is located on one side of the receiving component along the first direction.

3. The distance measuring device according to claim 2, characterized in that: At least one of the transmitting component and the receiving component is arranged obliquely relative to the second direction.

4. The distance measuring device according to claim 2 or 3, characterized in that: The distance measuring device further comprises a partition, and the partition is arranged between the transmitting component and the receiving component.

5. The distance measuring device according to claim 1, characterized in that: The first reflecting portion and the second reflecting portion both extend along a third direction, The fourth direction is perpendicular to the third direction, the transmitting component and the receiving component are located on one side of the rotating reflector along the fourth direction, the transmitting component is located on one side of the receiving component along the fifth direction, and the third direction, the fourth direction and the fifth direction are perpendicular to each other.

6. The distance measuring device according to claim 5, characterized in that: The transmitting assembly includes a first optical component and a transmitter, the first optical component is arranged corresponding to the receiving assembly and the transmitter, and the transmitter is arranged corresponding to the first optical component; Wherein, the first optical component is used to transmit the optical signal generated by the transmitter so that the optical signal emitted by the transmitting component reaches the rotating reflective component; the first optical component is also used to reflect the optical signal reflected by the rotating reflective component to itself to the receiving component.

7. The distance measuring device according to claim 6, characterized in that: The first optical component is a transflective mirror.

8. The distance measuring device according to claim 6, characterized in that: The first optical component has a reflective function, and is provided with a light-transmitting hole, wherein the light-transmitting hole is used for allowing the light signal emitted by the emitting component to pass through.

9. The distance measuring device according to claim 1, characterized in that: The transmitting assembly includes a second optical element and a transmitter, and the first reflecting portion and the second reflecting portion are both arranged along a sixth direction; The transmitter and the receiving component are located on one side of the main body along the seventh direction, and the transmitter and the receiving component are arranged along the sixth direction; The second optical component is located on one side of the transmitter and the receiving component along the eighth direction, the second optical component has a reflection function, and the second optical component is arranged corresponding to the first reflection part, the second reflection part, the transmitter and the receiving component; the sixth direction, the seventh direction and the eighth direction are perpendicular to each other.

10. The distance measuring device according to any one of claims 1 to 3 and 5 to 9, characterized in that: The rotating reflector further includes at least one third reflective portion, which is disposed on the main body, and the third reflective portion, the first reflective portion, and the second reflective portion are disposed along a circumferential direction of a rotation axis of the main body.

11. The distance measuring device according to claim 10, characterized in that: At least one of the first reflecting portion, the second reflecting portion and the third reflecting portion is disposed obliquely relative to a rotation axis of the main body.

12. The distance measuring device according to any one of claims 1 to 3 and 5 to 9, characterized in that: There are multiple receiving components, and the multiple receiving components are arranged side by side.

13. The distance measuring device according to any one of claims 1 to 3, 5 and 9, characterized in that: The transmitting component comprises a transmitter, and the transmitter is a point laser, a line laser or a surface laser.

14. The distance measuring device according to any one of claims 1 to 3 and 5 to 9, characterized in that: The distance measuring device also includes a mounting seat, and the transmitting component and the receiving component are arranged on the mounting seat.

15. The distance measuring device according to claim 14, characterized in that: The distance measuring device further comprises an outer cover, which is disposed on the transmitting component, the receiving component and the rotating reflector and is connected to the mounting seat, and the outer cover allows the optical signal to pass through.

16. The distance measuring device according to claim 15, characterized in that: The outer cover is provided with a shell body and a light-transmitting portion, wherein the light-transmitting portion is connected to the shell body, and the light-transmitting portion is arranged corresponding to the transmitting component, the receiving component and the rotating reflector, and the light-transmitting portion allows the optical signal to pass through.

17. The distance measuring device according to claim 14, characterized in that: The distance measuring device further comprises a driving member, which is drivingly connected to the main body to drive the main body to rotate.

18. The distance measuring device according to claim 17, characterized in that: The driving member includes a first motor, which includes a stator and a rotor. The stator is arranged on the mounting seat; the rotor is rotatably arranged relative to the stator, and the rotor is drivingly connected to the main body.

19. The distance measuring device according to claim 18, characterized in that: The driving member also includes a first code disk and a first photoelectric switch. The first code disk is drivingly connected to the rotor. The first code disk is provided with a first through hole and a plurality of second through holes in sequence along the circumferential direction. The shape of the first through hole is different from that of the second through hole. The first photoelectric switch is arranged corresponding to the code disk.

20. The distance measuring device according to claim 17, characterized in that: The driving member includes a second motor, a first gear and a second gear, wherein the output end of the second motor is connected to the first gear to drive the first gear to rotate; The second gear is located at one side of the first gear, the second gear is meshed with the first gear, and the second gear is drivingly connected to the main body.

21. The distance measuring device according to claim 20, characterized in that: The driving member also includes a second code disk and a second photoelectric switch. The second code disk is drivingly connected to the second gear. The second code disk is provided with a third through hole and a plurality of fourth through holes in sequence along the circumferential direction. The shape of the third through hole is different from that of the fourth through hole. The second photoelectric switch is arranged corresponding to the code disk.

22. The distance measuring device according to claim 17, characterized in that: The driving member includes a third motor, a first pulley, a second pulley and a belt; The first pulley is coaxially arranged with the output shaft of the third motor, and the first pulley is drivingly connected with the third motor; the second pulley is arranged on one side of the first pulley, and the main body is arranged on the Second pulley; The belt is sleeved on the first pulley and the second pulley.

23. The distance measuring device according to claim 22, characterized in that: The driving member also includes a third code disk and a third photoelectric switch. The third code disk is connected to the second pulley. The third code disk is provided with a fifth through hole and multiple sixth through holes in sequence along the circumferential direction. The shape of the fifth through hole is different from that of the sixth through hole. The third photoelectric switch is arranged corresponding to the third code disk.

24. A radar, characterized in that: Comprising a distance measuring device as described in any one of claims 1-23.

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