Distance measuring device and radar

Abstract

The embodiment of the utility model relates to the technical field of radars, and particularly 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; and the rotary reflecting part is rotationally arranged corresponding to the transmitting assembly and the receiving assembly so as to reflect the optical signal transmitted by the transmitting assembly to the outside, and the rotary reflecting part is further used for reflecting the optical signal reflected by an external object 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 a motor control module, an upper wireless power supply module, a lower wireless power supply module 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] The rotating reflector is rotatably arranged corresponding to the transmitting component and the receiving component 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, along a first direction, the rotating reflector is located at one end of the transmitting component and the receiving component; a second direction is perpendicular to the first direction, and along the second direction, the transmitting component is located at one side of the receiving component;

[0009] or,

[0010] The transmitting component and the receiving component are arranged relatively to each other along a third direction, a fourth direction is perpendicular to the third direction, and along the fourth direction, the rotating reflector is located at one side of the receiving component.

[0011] Optionally, at least one of the transmitting component and the receiving component is arranged to be inclined relative to the first direction or the fourth direction.

[0012] Optionally, the receiving component includes a first optical component and a receiver, the first optical component is arranged corresponding to the transmitting component and the receiver, and the receiver is arranged corresponding to the first optical component;

[0013] Wherein, the first optical component is used to transmit the optical signal emitted by the transmitting component so that the optical signal emitted by the transmitting component reaches the rotating reflector; the first optical component is also used to reflect the optical signal reflected by the rotating reflector to itself to the receiver.

[0014] Optionally, the first optical component is a transflective mirror.

[0015] 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.

[0016] Optionally, the receiving component includes a second optical component and a receiver, the second optical component is arranged on at least one side of the light emitting direction of the transmitting component, and the receiver is arranged corresponding to the second optical component;

[0017] Wherein, the second optical component is used to reflect the light signal reflected by the rotating reflector to itself to the receiver.

[0018] Optionally, at least two second optical components are provided, and at least one second optical component is provided on each side of the light emitting direction of the emitting component.

[0019] Optionally, the rotating reflector includes a first reflective portion and a second reflective portion, the first reflective portion corresponds to any one setting of the transmitting component and the receiving component, and the second reflective portion corresponds to the other setting of the transmitting component and the receiving component.

[0020] Optionally, an angle is formed between the first reflecting portion and the second reflecting portion.

[0021] Optionally, the receiver is a planar array receiver or a linear array receiver;

[0022] The transmitting component comprises a transmitter, and the transmitter is a point laser, a line laser, or a surface laser.

[0023] Optionally, the distance measuring device further comprises a housing and a driving assembly, the housing is provided with a receiving cavity, and the transmitting assembly, the receiving assembly and the rotating reflecting element are all received in the receiving cavity;

[0024] The driving assembly is received in the receiving cavity, and the driving assembly is drivingly connected to the rotating reflective component to drive the rotating reflective component to rotate.

[0025] Optionally, the shell includes a base and a cover, and the base is connected to the cover to form the receiving cavity.

[0026] Optionally, the driving assembly includes a first motor, the first motor includes a stator and a rotor, the stator is arranged on the cover body; the rotor is rotatably arranged relative to the stator, and the rotor is drivingly connected to the rotating reflector; the transmitting assembly and the receiving assembly are arranged on the base.

[0027] Optionally, the driving assembly includes a first motor, the first motor includes a stator and a rotor, the stator is arranged on the base; the rotor is rotatably arranged relative to the stator, and the rotor is drivingly connected to the rotating reflector; the transmitting assembly and the receiving assembly are arranged on the cover body.

[0028] Optionally, the driving assembly 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;

[0029] 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 connected to the rotating reflective member.

[0030] Optionally, the driving component also includes a code disk and a photoelectric switch, the second motor is drivingly connected to the code disk, the code disk is provided with a first perforation and multiple second perforations in sequence along the circumferential direction, and the shape of the first perforation is different from that of the second perforation; the photoelectric switch is arranged on one side of the code disk.

[0031] Optionally, the driving assembly includes a third motor, a third gear, a fourth gear, a first pulley, a second pulley, a belt, a code disc and a photoelectric switch;

[0032] The output end of the third motor is connected to the third gear to drive the third gear to rotate;

[0033] The fourth gear is located at one side of the third gear, the fourth gear is meshed with the third gear, and the fourth gear is connected to the rotating reflector;

[0034] The first pulley is drivingly connected to the third motor, the second pulley is located at one side of the first pulley, and the belt is sleeved on the first pulley and the second pulley;

[0035] The code disc is connected to the second pulley, and the code disc is provided with a first through hole and a plurality of second through holes in sequence along the circumferential direction, and the shape of the first through hole is different from that of the second through hole; the photoelectric switch is arranged on one side of the code disc.

[0036] Optionally, the light emitting direction of the emitting component is parallel to or crosses the rotation axis of the rotating reflector.

[0037] Optionally, the light emitting direction of the emitting component coincides with the rotation axis of the rotating reflector.

[0038] Optionally, an angle between the rotating reflector and the light emitting direction of the emitting end is 25° to 65°.

[0039] 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.

[0040] The beneficial effects of the embodiments of the utility model are as follows: Different from the prior art, the distance measuring device in the utility model includes a transmitting assembly, a receiving assembly and a rotating reflector. The transmitting assembly is used to generate a light signal. The receiving assembly is used to receive the light signal. The rotating reflector is rotatably arranged relative to the transmitting assembly and the receiving assembly, and the rotating reflector is used to reflect the light signal emitted by the transmitting assembly to the outside world, and the rotating reflector is also used to reflect the light 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 motor control module, the upper and lower wireless power supply modules and the optical communication module. The distance measuring device provided by the present application has the advantage of high integration and can reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] 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.

[0042] Figure 1 It is a structural schematic diagram of a distance measuring device in one embodiment of the utility model;

[0043] Figure 2 is a cross-sectional view of a distance measuring device in one embodiment of the utility model;

[0044] Figure 3 is a cross-sectional view of a distance measuring device in one embodiment of the utility model;

[0045] Figure 4 is a cross-sectional view of a distance measuring device in one embodiment of the utility model;

[0046] Figure 5 It is a partial structural schematic diagram of a distance measuring device in one embodiment of the utility model;

[0047] Figure 6 It is a structural schematic diagram of a first optical component of a distance measuring device in one embodiment of the utility model;

[0048] Figure 7It is a partial structural schematic diagram of a distance measuring device in one embodiment of the utility model;

[0049] Figure 8 It is a partial structural schematic diagram of a distance measuring device in one embodiment of the utility model;

[0050] Fig. 9 is a cross-sectional view of a distance measuring device in one embodiment of the utility model;

[0051] Fig.10 It is a partial structural schematic diagram of a distance measuring device in one embodiment of the utility model;

[0052] Fig.11 is a cross-sectional view of a distance measuring device in one embodiment of the utility model;

[0053] Fig.12 It is a partial structural schematic diagram of a distance measuring device in one embodiment of the utility model;

[0054] Fig.13 It is a cross-sectional view of a distance measuring device in one embodiment of the utility model.

[0055] Description of reference numerals:

[0056] 100. Distance measuring device;

[0057] 1. Transmitter assembly; 11. Transmitter; 12. Transmitter lens;

[0058] 2. receiving component; 21. receiver; 22. receiving lens; 23. first optical element; 231. perforation; 24. second optical element;

[0059] 3. Rotating reflector; 31. First reflector; 32. Second reflector;

[0060] 4. housing; 41. base; 42. cover; 43. receiving chamber;

[0061] 5. Driving assembly; 51a. First motor; 511a. Stator; 512a. Rotor; 51b. Second motor; 51c. Third motor;

[0062] 52, first gear; 53, second gear;

[0063] 54. The third gear; 55. The fourth gear; 56. The first pulley; 57. The second pulley; 58. The belt; 59a. The code disc; 591a. The first perforation; 592a. The second perforation; 59b. The photoelectric switch. DETAILED DESCRIPTION

[0064] 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.

[0065] 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.

[0066] See also Figures 1 to 3 The utility model provides a distance measuring device 100, and the distance measuring device 100 includes a transmitting component 1, a receiving component 2 and a rotating reflector 3. Among them, the transmitting component 1 is used to generate a light signal. The receiving component 2 is used to receive the light signal. The rotating reflector 3 is rotatably arranged relative to the transmitting component 1 and the receiving component 2, and the rotating reflector 3 is used to reflect the light signal emitted by the transmitting component 1 to the outside world, and the rotating reflector 3 is also used to reflect the light 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 motor control module, 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.

[0067] The path of the optical signal of the ranging device 100 is roughly as follows: the optical signal generated by the transmitting component 1 is emitted to the rotating reflector 3, the rotating reflector 3 reflects the optical signal to the external object, and after the optical signal reaches the external object, it is reflected to the rotating component, and the rotating component reflects the reflected optical signal to the receiving component 2.

[0068] See also Figure 2 In some embodiments, along the first direction Y, the rotating reflective member 3 is located at one end of the transmitting assembly 1 and the receiving assembly 2, that is, the rotating reflective member 3 is arranged opposite to the transmitting assembly 1 and the receiving assembly 2 along the first direction. The second direction X is perpendicular to the first direction, and along the second direction X, the transmitting assembly 1 is located at one side of the receiving assembly 2, that is, the transmitting assembly 1 and the receiving assembly 2 are arranged opposite to each other along the second direction.

[0069] See also Figure 4In some embodiments, at least one of the transmitting component 1 and the receiving component 2 is tilted relative to the first direction Y. When the transmitting component 1 is tilted relative to the first direction Y, the optical signal generated by the transmitting component 1 can reach farther after being reflected by the rotating reflector 3, thereby increasing the ranging range of the ranging device 100. At the same time, the ranging range can be adjusted by adjusting the tilt angle of the transmitting component 1 relative to the first direction Y. When the receiving component 2 is tilted relative to the first direction Y, it is beneficial for the receiving component 2 to receive the complete light spot reflected back by the rotating reflector 3.

[0070] The specific configurations of the transmitting component 1 and the receiving component 2 include: (1) the transmitting component 1 is configured to be tilted relative to the first direction Y; (2) the receiving component 2 is configured to be tilted relative to the first direction Y; (3) both the transmitting component 1 and the receiving component 2 are configured to be tilted relative to the first direction Y.

[0071] In some embodiments, the rotating reflector 3 is located at the transmitting component 1 and the receiving component 2 along a third direction (not shown). The fourth direction (not shown) is perpendicular to the third direction. The rotating reflector 3 is located at one side of the receiving component 2 along the fourth direction.

[0072] In a specific embodiment, the third direction is a horizontal direction, and the fourth direction is a vertical direction.

[0073] In some embodiments, at least one of the transmitting component 1 and the receiving component 2 is tilted relative to the fourth direction. When the transmitting component 1 is tilted relative to the fourth direction, the optical signal generated by the transmitting component 1 can reach farther after being reflected by the rotating reflector 3, thereby increasing the ranging range of the ranging device 100. At the same time, the ranging range can be adjusted by adjusting the tilt angle of the transmitting component 1 relative to the fourth direction. When the receiving component 2 is tilted relative to the fourth direction, it is beneficial for the receiving component 2 to receive the complete light spot reflected back by the rotating reflector 3.

[0074] The specific configurations of the transmitting component 1 and the receiving component 2 include: (1) the transmitting component 1 is configured to be inclined relative to the fourth direction; (2) the receiving component 2 is configured to be inclined relative to the fourth direction; (3) both the transmitting component 1 and the receiving component 2 are configured to be inclined relative to the fourth direction.

[0075] In some embodiments, the rotating reflector 3 is a reflector, so that it has the function of reflecting light signals.

[0076] In some embodiments, the rotating reflector 3 is an object with a relatively smooth surface so that it has the function of reflecting light signals.

[0077] In some embodiments, the rotating reflector 3 is an object with a reflective coating on its surface so that it has the function of reflecting light signals.

[0078] See also Figure 2 In some embodiments, the rotating reflector 3 includes a first reflective portion 31 and a second reflective portion 32. The first reflective portion 31 has the function of reflecting light signals. The first reflective portion 31 corresponds to any one of the transmitting component 1 and the receiving component 2, so that the first reflective portion 31 can completely reflect the light signal generated by the transmitting component 1 to the outside world, or completely reflect the light spot corresponding to the light signal reflected back by the external object to the receiving component 2. The second reflective portion 32 corresponds to the other one of the transmitting component 1 and the receiving component 2, so that the second reflective portion 32 can completely reflect the light signal generated by the transmitting component 1 to the outside world, or completely reflect the light spot corresponding to the light signal reflected back by the external object to the receiving component 2.

[0079] In a specific embodiment, the first reflective portion 31 is arranged corresponding to the transmitting component 1, so that the first reflective portion 31 can completely reflect the optical signal generated by the transmitting component 1 to the outside. The second reflective portion 32 is arranged corresponding to the receiving component 2, so that the second reflective portion 32 can completely reflect the light spot corresponding to the optical signal reflected back by the external object to the receiving component 2.

[0080] In a specific embodiment, the first reflective portion 31 is arranged corresponding to the receiving component 2, so that the first reflective portion 31 can completely reflect the light spot corresponding to the light signal reflected back by the external object to the receiving component 2. The second reflective portion 32 is arranged corresponding to the transmitting component 1, so that the second reflective portion 32 can completely reflect the light signal generated by the transmitting component 1 to the outside world.

[0081] In some embodiments, there is an angle between the first reflective portion 31 and the second reflective portion 32, that is, the rotating reflective member 3 is composed of the first reflective portion 31 and the second reflective portion 32 which are not located on the same plane. Since there is an angle between the first reflective portion 31 and the second reflective portion 32, the first reflective portion 31 and the second reflective portion 32 have a higher degree of coordination with the transmitting component 1 and the receiving component 2, and the distance of the light signal emitted by the transmitting component 1 to the outside can be further adjusted, and the measuring range of the distance measuring device 100 can be increased. At the same time, the light spot corresponding to the light signal reflected back by the external object can be completely reflected to the receiving component 2.

[0082] See also Figure 5 In some embodiments, the receiving component 2 includes a first optical component 23 and a receiver 21. The first optical component 23 has the function of reflecting and transmitting light signals. The first optical component 23 is arranged corresponding to the transmitting component 1 and the receiver 21. The light signal generated by the transmitting component 1 passes through the first optical component 23 and reaches the rotating reflective component 3, and the rotating reflective component 3 reflects the light signal to the outside.

[0083] The receiver 21 is located at the light-emitting side of the first optical element 23. The receiver 21 is used to receive the optical signal and convert the optical signal into an electrical signal. The external object reflects the optical signal to the rotating reflector 3, and the rotating reflector 3 reflects the reflected optical signal to the first optical element 23, and the first optical element 23 reflects the optical signal to the receiver 21.

[0084] In some embodiments, the first optical element 23 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.

[0085] 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.

[0086] See also Figure 6 In some embodiments, the first optical component 23 has a reflective function, and the first optical component 23 is provided with a light-transmitting hole 231, the light-transmitting hole 231 is provided corresponding to the transmitting component 1, and the light-transmitting hole 231 is used for allowing the light signal emitted by the transmitting component 1 to pass through, so that the first optical component 23 also has the function of transmitting the light signal.

[0087] When the distance measuring device 100 is working, the light signal generated by the transmitting component 1 passes through the first optical component 23 through the light-transmitting hole 231 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 23, and the first optical component 23 reflects the light signal to the receiver 21. Correspondingly, the first optical component 23 can be a structure with a perforation on a reflector or other objects with a reflective function.

[0088] See also Figure 7 In some embodiments, the receiving component 2 includes a second optical component 24 and a receiver 21. The second optical component 24 has a reflection function. The second optical component 24 is arranged on at least one side of the light emitting direction of the transmitting component 1. The second optical component 24 is arranged corresponding to the receiver 21. The second optical component 24 is used to reflect the light signal reflected by the rotating reflector 3 to itself to the receiver 21.

[0089] When the distance measuring device 100 is working, the optical signal generated by the transmitting component 1 is emitted to the rotating reflector 3, and the rotating reflector 3 reflects the optical signal to the outside world. The external object reflects the optical signal to the rotating reflector 3, and the rotating reflector 3 reflects the reflected optical signal to the second optical component 24, and the second optical component 24 reflects the optical signal to the receiver 21.

[0090] Regarding the arrangement of the above-mentioned second optical element 24, specifically, (1) the second optical element 24 is arranged on one side of the light emitting direction of the transmitting component 1; (2) the second optical element 24 is arranged on the other side of the light emitting direction of the transmitting component 1; (3) the second optical element 24 is arranged on both sides of the light emitting direction of the transmitting component 1. When the second optical element 24 is arranged on both sides of the light emitting direction of the transmitting component 1, there is an angle between each second optical element 24 and the light emitting direction of the transmitting component 1. When the ranging device 100 is working, after the light signal reflected by the external object is reflected to the rotating reflector 3, the light spot corresponding to the light signal reflected by the rotating reflector 3 can be fully reflected to one of the second optical elements 24, and the second optical element 24 then reflects the light signal to the receiving component 2. For external objects at different distances, the rotating reflector 3 can reflect the light signal to different second optical elements 24, that is, different second optical elements 24 are suitable for external objects at different distances. By superimposing the measurement ranges of multiple second optical elements 24, the ranging device 100 can have a larger measurement range.

[0091] For the above-mentioned receiver 21, the receiver 21 is a surface array receiver 21 or a linear array receiver 21. The receiving component 2 also includes a receiving lens 22, which is arranged corresponding to the receiver 21, and the optical signal passing through the receiving lens 22 is emitted into the receiver 21. At the same time, the transmitting component 1 also includes a transmitter 11 and a transmitting lens 12, and the transmitter 11 is used to generate an optical signal, and the transmitter 11 is a point laser or a line laser or a surface laser. The transmitting lens 12 is arranged corresponding to the transmitter 11, and the optical signal generated by the transmitter 11 first passes through the transmitting lens 12, and then propagates to the rotating reflector 3.

[0092] See also Figure 8 In some embodiments, at least two second optical elements 24 are provided, and at least one second optical element 24 is provided on each side of the light emitting direction of the emitting component 1.

[0093] See also Figure 8 In some embodiments, the ranging device 100 further includes a housing 4 and a driving assembly 5 . The housing 4 is provided with a receiving cavity 43 . The receiving cavity 43 is used to provide an installation space. The transmitting assembly 1 , the receiving assembly 2 and the rotating reflector 3 are all received in the receiving cavity 43 .

[0094] The driving assembly 5 is used to provide the rotating reflector 3 with the power required for rotation, and the driving assembly 5 is received in the receiving chamber 43. The driving assembly 5 is received in the receiving chamber 43, and the driving assembly 5 is connected to the rotating reflector 3 to drive the rotating reflector 3 to rotate.

[0095] See also Figures 1 to 3 In some embodiments, the housing 4 includes a base 41 and a cover 42, and the base 41 is connected to the cover 42 to form a receiving cavity 43. The optical signal is transmitted through the cover 42 to the outside.

[0096] See also Figure 2 and Figure 3 In some embodiments, the driving assembly 5 includes a first motor 51a, and the first motor 51a includes a stator 511a and a rotor 512a, wherein the stator 511a is a non-movable part, and the stator 511a is disposed on the cover 42 and connected to the cover 42 to achieve fixed installation. The rotor 512a is disposed relative to the stator 511a, and the rotor 512a is rotationally connected relative to the stator 511a. The rotor 512a is drivingly connected to the rotating reflector 3. When the rotor 512a rotates relative to the stator 511a, the rotor 512a drives the rotating reflector 3 to rotate. The transmitting assembly 1 and the receiving assembly 2 are disposed on the base 41 to achieve fixed installation of the transmitting assembly 1 and the receiving assembly 2.

[0097] See also Fig.13 In some embodiments, the driving assembly 5 includes a first motor 51a, and the first motor 51a includes a stator 511a and a rotor 512a, wherein the stator 511a is a non-movable part, and the stator 511a is disposed on the base 41 and connected to the base 41 to achieve fixed installation. The rotor 512a is disposed relative to the stator 511a, and the rotor 512a is rotationally connected relative to the stator 511a. The rotor 512a is drivingly connected to the rotating reflector 3. When the rotor 512a rotates relative to the stator 511a, the rotor 512a drives the rotating reflector 3 to rotate. The transmitting assembly 1 and the receiving assembly 2 are disposed on the cover 42 to achieve fixed installation of the transmitting assembly 1 and the receiving assembly 2.

[0098] See also Fig.12 In some embodiments, the driving assembly 5 includes a second motor 51b, a first gear 52 and a second gear 53. The second motor 51b is a power source, the second motor 51b is located at one end of the first gear 52, the rotation center of the output end of the second motor 51b is coaxial with the axial direction of the first gear 52, and the output end of the second motor 51b is connected to the first gear 52. Therefore, when the second motor 51b is working, the second motor 51b drives the first gear 52 to rotate. The second gear 53 is located at one side of the first gear 52, the second gear 53 is meshed with the first gear 52, and the second gear 53 rotates under the drive of the first gear 52. The second gear 53 is connected to the rotating reflector 3, so the second gear 53 drives the rotating reflector 3 to rotate when rotating.

[0099] See also Fig.12 In some embodiments, the driving assembly 5 further includes a code disk 59a and a photoelectric switch 59b, and the output shaft of the second motor 51b is connected to the code disk 59a to achieve a driving connection between the second motor 51b and the code disk 59a. When the second motor 51b rotates, the second motor 51b drives the code disk 59a to rotate synchronously.

[0100] The code disk 59a is substantially cylindrical, and a first through hole 591a and a plurality of second through holes 592a are sequentially arranged along the circumferential direction on the outer edge of the code disk 59a. The shape of the first through hole 591a is different from the shape of the second through holes 592a.

[0101] The photoelectric switch 59b is the abbreviation of the photoelectric proximity switch, which uses the blocking or reflection of the light beam by the detected object to connect the circuit by the synchronization circuit, thereby detecting the presence or absence of the object. The photoelectric switch 59b is set on one side of the code disk 59a. The photoelectric code disk 59a can identify the first perforation 591a, and then determine the rotation angle of the rotating reflector 3 according to the rotation speed of the second motor 51b. When the distance measuring device 100 has a transmission component such as a gear set or a pulley, the rotation angle of the rotating reflector 3 is also determined by the transmission ratio of the transmission component.

[0102] See also Figures 9 to 11 In some embodiments, the driving assembly 5 includes a third motor 51c, a third gear 54, a fourth gear 55, a first pulley 56, a second generation wheel, a belt 58, a code disc 59a and a photoelectric switch 59b.

[0103] The third motor 51c is a power source. The third motor 51c is located at one end of the third gear 54. The rotation center of the output end of the third motor 51c is coaxial with the axial direction of the third gear 54. The output end of the third motor 51c is connected to the third gear 54. Therefore, when the third motor 51c is working, the third motor 51c drives the third gear 54 to rotate. The fourth gear 55 is located at one side of the third gear 54. The fourth gear 55 is meshed with the third gear 54. The fourth gear 55 rotates under the drive of the third gear 54. The fourth gear 55 is connected to the rotating reflective member 3. Therefore, when the fourth gear 55 rotates, it drives the rotating reflective member 3 to rotate.

[0104] The first pulley 56 is sleeved on the output shaft of the third motor 51 c and connected to the output shaft of the third motor 51 c . Therefore, the first pulley 56 rotates synchronously with the third motor 51 c .

[0105] The second pulley 57 is located on one side of the first pulley 56 , and the belt 58 is sleeved on the first pulley 56 and the second pulley 57 . Therefore, when the third motor 51 c is working, the third motor 51 c drives the first pulley 56 to rotate, and the first pulley 56 drives the second pulley 57 to rotate under the action of the belt 58 .

[0106] The code disc 59a is cylindrical, and is coaxially arranged with the second pulley 57, and the code disc 59a is connected to the second pulley 57, so that the code disc 59a is driven to rotate synchronously when the second pulley 57 rotates. The outer edge of the code disc 59a is sequentially provided with a first through hole 591a and a plurality of second through holes 592a along the circumferential direction, and the shape of the first through hole 591a is different from the shape of the second through hole 592a.

[0107] The photoelectric switch 59b is the abbreviation of the photoelectric proximity switch, which uses the blocking or reflection of the light beam by the detected object to connect the circuit by the synchronization circuit, thereby detecting the presence or absence of the object. The photoelectric switch 59b is arranged on one side of the code disk 59a, and the photoelectric code disk 59a can identify the first perforation 591a, and then according to the transmission ratio of the third gear 54 and the fourth gear 55, and the transmission ratio of the first pulley 56 and the second pulley 57, the rotation angle of the third gear 54 can be obtained, and thus the rotation angle of the rotating reflector 3 can be obtained.

[0108] See also Figure 3 In some embodiments, the light emitting direction S of the emitting assembly 1 is parallel to or intersects with the rotation axis of the rotating reflector 3. Specifically, in some embodiments, the light emitting direction S of the emitting assembly 1 is coaxial with the rotation axis of the rotating reflector 3. In other embodiments, the light emitting direction S of the emitting assembly 1 intersects with the rotation axis of the rotating reflector 3.

[0109] See also Figure 3 In some embodiments, the light emitting direction of the emitting component 1 coincides with the rotation axis of the rotating reflector 3 .

[0110] See also Figure 3 In some embodiments, when the light emitting direction of the emitting component 1 intersects with the rotation axis of the rotating reflector 3, the angle A between the rotating reflector 3 and the light emitting direction of the emitting end is 25 degrees to 65 degrees.

[0111] In summary, the distance measuring device 100 includes a transmitting component 1, a receiving component 2 and a rotating reflector 3. Among them, the transmitting component 1 is used to generate a light signal. The receiving component 2 is used to receive a light signal. The rotating reflector 3 is rotatably arranged relative to the transmitting component 1 and the receiving component 2, and the rotating reflector 3 is used to reflect the light signal emitted by the transmitting component 1 to the outside world, and the rotating reflector 3 is also used to reflect the light 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 in the present application can omit the motor control module, the upper and lower wireless power supply modules and the optical communication module. The distance measuring device 100 provided in the present application has the advantage of high integration and can reduce production costs.

[0112] The utility model further provides a radar (not shown), which includes the above-mentioned distance measuring device 100.

[0113] 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; The rotating reflector is rotatably arranged corresponding to the transmitting component and the receiving component 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: Along the first direction, the rotating reflector is located at one end of the transmitting assembly and the receiving assembly; the second direction is perpendicular to the first direction, and along the second direction, the transmitting assembly is located at one side of the receiving assembly; or, The transmitting component and the receiving component are arranged relatively to each other along a third direction, a fourth direction is perpendicular to the third direction, and along the fourth direction, the rotating reflector is located at one side of the receiving component.

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 first direction or the fourth direction.

4. The distance measuring device according to claim 1, characterized in that: The receiving component includes a first optical component and a receiver, the first optical component is arranged corresponding to the transmitting component and the receiver, and the receiver is arranged corresponding to the first optical component; Wherein, the first optical component is used to transmit the optical signal emitted by the transmitting component so that the optical signal emitted by the transmitting component reaches the rotating reflector; the first optical component is also used to reflect the optical signal reflected by the rotating reflector to itself to the receiver.

5. The distance measuring device according to claim 4, characterized in that: The first optical component is a transflective mirror.

6. The distance measuring device according to claim 4, 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.

7. The distance measuring device according to claim 1, characterized in that: The receiving component comprises a second optical component and a receiver, the second optical component is arranged on at least one side of the light emitting direction of the transmitting component, and the receiver is arranged corresponding to the second optical component; Wherein, the second optical element is used to reflect the optical signal reflected by the rotating reflective element to itself to the receiver.

8. The distance measuring device according to claim 7, characterized in that: At least two second optical components are provided, and at least one second optical component is provided on each side of the light emitting direction of the emitting component.

9. The distance measuring device according to any one of claims 1 to 8, characterized in that: The rotating reflector includes a first reflective portion and a second reflective portion, wherein the first reflective portion corresponds to any one of the transmitting component and the receiving component, and the second reflective portion corresponds to the other one of the transmitting component and the receiving component.

10. The distance measuring device according to claim 9, characterized in that: An included angle is formed between the first reflecting portion and the second reflecting portion.

11. The distance measuring device according to any one of claims 4 to 8, characterized in that: The receiver is a planar array receiver or a linear array receiver; The transmitting component comprises a transmitter, and the transmitter is a point laser, a line laser, or a surface laser.

12. The distance measuring device according to any one of claims 1 to 8, characterized in that: The distance measuring device further comprises a housing and a driving assembly, wherein the housing is provided with a receiving cavity, and the transmitting assembly, the receiving assembly and the rotating reflecting element are all received in the receiving cavity; The driving assembly is received in the receiving cavity, and the driving assembly is connected to the rotating reflector to drive the rotating reflector to rotate.

13. The distance measuring device according to claim 12, characterized in that: The housing comprises a base and a cover, wherein the base is connected to the cover to form the receiving cavity.

14. The distance measuring device according to claim 13, characterized in that: The driving component includes a first motor, which includes a stator and a rotor. The stator is arranged on the cover body; the rotor is rotatably arranged relative to the stator, and the rotor is drivingly connected to the rotating reflector; the transmitting component and the receiving component are arranged on the base.

15. The distance measuring device according to claim 13, characterized in that: The driving component includes a first motor, which includes a stator and a rotor, wherein the stator is arranged on the base; the rotor is rotatably arranged relative to the stator, and the rotor is drivingly connected to the rotating reflector; the transmitting component and the receiving component are arranged on the cover.

16. The distance measuring device according to claim 12, characterized in that: The driving assembly 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 connected to the rotating reflective member.

17. The distance measuring device according to claim 16, characterized in that: The driving component also includes a code disk and a photoelectric switch. The second motor is drivingly connected to the code disk. The code disk is provided with a first through hole and multiple 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 photoelectric switch is arranged on one side of the code disk.

18. The distance measuring device according to claim 12, characterized in that: The driving assembly includes a third motor, a third gear, a fourth gear, a first pulley, a second pulley, a belt, a code disc and a photoelectric switch; The output end of the third motor is connected to the third gear to drive the third gear to rotate; The fourth gear is located at one side of the third gear, the fourth gear is meshed with the third gear, and the fourth gear is connected to the rotating reflector; The first pulley is drivingly connected to the third motor, the second pulley is located at one side of the first pulley, and the belt is sleeved on the first pulley and the second pulley; The code disc is connected to the second pulley, and the code disc is provided with a first through hole and a plurality of second through holes in sequence along the circumferential direction, and the shape of the first through hole is different from that of the second through hole; the photoelectric switch is arranged on one side of the code disc.

19. The distance measuring device according to any one of claims 1 to 8, characterized in that: The light emitting direction of the emitting component is parallel to or crosses the rotation axis of the rotating reflector.

20. The distance measuring device according to any one of claims 1 to 8, characterized in that: The light emitting direction of the emitting component coincides with the rotation axis of the rotating reflector.

21. The distance measuring device according to any one of claims 1 to 8, characterized in that: The angle between the rotating reflector and the light emitting direction of the emitting assembly is 25° to 65°.

22. A radar, characterized in that: Comprising a distance measuring device as described in any one of claims 1-21.

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