CN220271548U - Traffic radar - Google Patents

Abstract

The embodiment of the application discloses a traffic radar, and the traffic radar includes first casing, radar subassembly, video subassembly and gas subassembly. The first shell is of a hollow structure and is provided with a front surface, and the front surface is provided with a transparent area. The radar assembly is accommodated in the first shell and is used for collecting radar signals of a target object positioned on the opposite side of the front surface. The video component is accommodated in the first shell and is arranged relative to the transparent area and used for collecting video signals of the target object through the transparent area. The blowing component is arranged outside the first shell and is positioned outside the edge of the front surface and used for blowing air towards the transparent area. In the embodiment of the application, the blowing component is arranged outside the edge of the front surface, so that the blowing component can be prevented from affecting radar signals and video signals. Through set up the subassembly of blowing in the outside of first casing, the subassembly of blowing can blow towards transparent region to clear away the dust, realized clear purpose.

Description

Traffic radar

Technical Field

The application relates to the technical field of radio wave distance measuring devices, in particular to a traffic radar.

Background

The increasingly complex road traffic environment has prompted the development of traffic management systems to intelligent, comprehensive, accurate, and real-time, and reliable, real-time, and accurate detection data must be relied upon to meet this requirement. The traffic radar has the technical advantage of having extremely important application in the intelligent traffic field. The traffic radar can be used for vehicle detection, traffic volume investigation, traffic incident detection, traffic guidance, overspeed monitoring, electronic bayonet, electronic police, traffic light control and the like.

Traffic radar incorporates video cameras to provide more comprehensive monitoring data. Because traffic radar is used outdoors, dust adheres to its surface, causes the shielding to the video camera of inside easily to influence normal work. Currently, traffic radars are provided with scraping members, which clean dust by scraping. But the scraping member can be arranged in front of the traffic radar in a blocking way during operation, so that radar signals or video signals are affected.

In view of this, there is a real need to develop a traffic radar for solving the problem of dust on the surface of the traffic radar.

Disclosure of Invention

Embodiments of the present application provide a traffic radar capable of cleaning surface dust while avoiding affecting radar signals or video signals.

In order to solve the technical problems, the embodiment of the application discloses the following technical scheme:

in one aspect, a traffic radar is provided that includes a first housing, a radar assembly, a video assembly, and a blowing assembly. The first shell is of a hollow structure and is provided with a front surface, and the front surface is provided with a transparent area. The radar assembly is accommodated in the first shell and is used for collecting radar signals of a target object positioned on the opposite side of the front surface. The video component is accommodated in the first shell and is arranged relative to the transparent area and used for collecting video signals of the target object through the transparent area. The blowing component is arranged outside the first shell and is positioned outside the edge of the front surface and used for blowing air towards the transparent area.

In addition to or in lieu of one or more of the features disclosed above, the insufflation assembly includes a balloon, a moveable member, and a drive member. The air bag is made of elastic materials, can shrink the cavity of the air bag under the extrusion of external force, and is restored after the external force is removed, and the air bag is provided with an air blowing port which communicates the cavity with the outside, and the air blowing port is arranged towards the transparent area. The moveable member can be either proximal or distal to the balloon. The driving member is used for driving the movable member to approach the air bag so as to squeeze the air bag.

In addition to or in lieu of one or more of the features disclosed above, the air blowing assembly also includes an elastic member. The elastic piece acts on the movable piece and is used for applying an elastic force to the movable piece so as to drive the movable piece to be far away from the air bag.

In addition to or in lieu of one or more of the features disclosed above, the blowing assembly also includes a connecting rod. The connecting rod is rotatably arranged and provided with a first end part and a second end part which are positioned on two opposite sides of the rotation axis, wherein the first distance between the first end part and the rotation axis is smaller than the second distance between the second end part and the rotation axis. Wherein the driving member is used for driving the first end to rotate around the rotation axis, so that the second end drives the movable member to approach the air bag.

In addition to or in lieu of one or more of the features disclosed above, the first end has a magnetic property, and the driving member is an electromagnet that magnetically attracts the first end when energized, thereby driving the first end in rotation about the axis of rotation.

In addition to or as an alternative to one or more of the features disclosed above, the second end is rotatably connected to the moveable member.

In addition to or as an alternative to one or more of the features disclosed above, the radar apparatus further comprises a second housing. The second shell is fixedly connected to the first shell and surrounds at least part of the edge of the front surface, and at least part of the second shell protrudes out of the front surface. Wherein, the subassembly of blowing sets up in the second casing.

In addition to or in lieu of one or more of the features disclosed above, the second housing is hollow in construction and has openings communicating respectively the interior and exterior, the openings being disposed toward the transparent region. The blowing component is accommodated in the second shell and blows air towards the transparent area through the opening.

In addition to or in lieu of one or more of the features disclosed above, the second housing includes a first sub-portion and a second sub-portion. The first sub-portion is fixedly connected to the first housing. The second sub-part is fixedly connected with the first sub-part and is enclosed to form a containing cavity. Wherein, the blowing subassembly holds in the holding chamber.

In addition to or as an alternative to one or more of the features disclosed above, the second housing is removably connected with the first housing.

One of the above technical solutions has the following advantages or beneficial effects:

the place ahead (radar signal send direction be the place ahead) of the front surface of first casing should not have to shelter from, in the embodiment of this application, will blow the subassembly and set up outside the edge of front surface, can avoid blowing the subassembly to influence radar signal and video signal. The blowing component can blow air towards the transparent area, so that dust is removed, and the aim of cleaning is fulfilled.

Drawings

Technical solutions and other advantageous effects of the present application will be made apparent from the following detailed description of specific embodiments of the present application with reference to the accompanying drawings.

FIG. 1 is a schematic three-dimensional view of a first angle of a traffic radar according to an embodiment of the present application;

FIG. 2 is a schematic three-dimensional structure of a second angle of the traffic radar of FIG. 1;

FIG. 3 is a cross-sectional view of the traffic radar of FIG. 1;

FIG. 4 is an enlarged view of a partial view of FIG. 3, with the balloon not compressed;

FIG. 5 is a cross-sectional view A-A of FIG. 3, with the balloon not compressed;

FIG. 6 is an enlarged view of a partial view of FIG. 3 with the balloon compressed;

FIG. 7 is a cross-sectional view A-A of FIG. 3, with the balloon being compressed;

FIG. 8 is a cross-sectional view of a protective cover in a traffic radar according to another embodiment of the present application, with an air bag not compressed;

fig. 9 is a cross-sectional view of a protective cover in a traffic radar according to yet another embodiment of the present application, with an air bag not compressed.

Reference numerals illustrate:

100-radar body; 101-a first housing; 103-front surface; 105-transparent areas; 107-radar component; 109-video component; 200-protecting cover; 201-a second housing; 203-an air blowing assembly; 205-a receiving cavity; 207-first sub-section; 209-a second sub-section; 211-opening; 213-an air bag; 214-an air blowing port; 215-a movable member; 217-connecting rods; 219-elastic members; 221-a driver; 223-limit part; 225-a guide; an L-axis of rotation; 227—a first end; 229-a second end; 231-screw; 233-a circumferential side wall; 235-a bend; 237-a first end wall; 239-a second end wall; 241-an elastic member; h1-first pitch; h2-second pitch; x-a first direction; y-a second direction; z-third direction.

Detailed Description

In order to make the objects, technical solutions and advantageous effects of the present application more clear, the present application is further described in detail below with reference to the accompanying drawings and detailed description. It should be understood that the detailed description is presented herein for purposes of illustration only and is not intended to limit the application.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" means two or more, unless specifically defined otherwise.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; the connection may be mechanical connection, direct connection or indirect connection through an intermediate medium, and may be internal connection of two elements or interaction relationship of two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.

Please refer to fig. 1 to 3. Fig. 1 is a schematic three-dimensional structure of a first angle of a traffic radar according to an embodiment of the present application. Fig. 2 is a schematic three-dimensional structure of a second angle of the traffic radar shown in fig. 1. Fig. 3 is a cross-sectional view of the traffic radar of fig. 1.

The traffic radar includes a radar main body 100 and a protective cover 200.

The radar body 100 is mounted on a portal frame of a road, for example, and detects a target object in front. The shield 200 is detachably connected to the radar body 100 for protecting the radar body 100. Specifically, the shield 200 is provided at the top of the radar main body 100 in a semi-enclosed manner, and can perform the functions of shielding light and shielding rain.

The radar body 100 includes a first housing 101, a radar assembly 107, and a video assembly 109.

The first housing 101 is a hollow structure. The first housing 101 has a front surface 103. The front surface 103 has a transparent region 105. The front surface 103 is substantially perpendicular to the first direction X or lies in a plane formed by the second direction Y and the third direction Z. Any two of the first direction X, the second direction Y, and the third direction Z are perpendicular to each other. The first direction X is the front of the radar body 100, and the reverse direction of the first direction X is the rear of the radar body 100. The protection cover 200 is detachably mounted to the first housing 101 and is located outside the first housing 101.

Specifically, the side wall where the front surface 103 is located is made of a material capable of transmitting radio waves, for example, injection molded from PBT (polybutylene terephthalate). Radio waves may be emitted from inside to outside through the side wall of the front surface 103 or radio waves may be reflected from outside to inside through the side wall of the front surface 103.

A radar assembly 107 is housed within the first housing 101 for acquiring radar signals from a target object located on the opposite side of the front surface 103.

Specifically, the radar assembly 107 includes a signal transceiver module, a first data processing module, and a power module.

The signal receiving and transmitting module is used for transmitting and receiving radar radio frequency signals and converting the received radar radio frequency signals into radar digital signals to be output. In particular, the signal transceiver module may comprise an antenna, a feeder structure, a radio frequency chip. The antenna is used for transmitting and receiving radio waves. The radio frequency chip is responsible for modulating signals, the radio frequency chip transmitting port transmits radio waves to the antenna through the feeder line structure, the returned radio waves return to the radio frequency chip receiving port after passing through the antenna and the feeder line structure, and the conversion from analog signals to digital signals is completed.

The first data processing module is used for receiving the radar digital signals and performing data processing on the radar digital signals to obtain a first result. Specifically, the first data processing module mainly includes a high-speed signal processor, a DDR (Double Data Rate Synchronous Dynamic Random Access Memory, double rate synchronous dynamic random access memory), and the like. After receiving the radar digital signal, the radar digital signal is processed by algorithms such as FFT (Fast Fourier Transform ), CFAR (Constant False Alarm Rate Detector, detector under constant false alarm probability), DOA (Direction of Arriva, direction of arrival of the radiation signal), DBSCAN (Density-Based Spatial Clustering of Applications with Noise, clustering algorithm based on Density), tracking (target Tracking) and the like, so as to obtain the information of the distance, angle, speed and the like of the target.

The power supply module is used for converting the electric energy of the external power supply into a set voltage and supplying power to the signal transceiver module 107 and the data processing module.

The video assembly 109 is accommodated in the first housing 101 and disposed opposite to the transparent region 105, and is configured to collect a video signal of a target object through the transparent region 105.

In particular, the video component 109 includes an image acquisition module and a second data processing module.

The image acquisition module is disposed opposite the transparent region 105 and is configured to acquire an image through the transparent region 105. The image acquisition module is a camera or a video camera.

The second data processing module is used for performing data processing on the image acquired by the image acquisition module to obtain a second result.

The power supply module is also used for supplying power to the image acquisition module and the second data processing module.

The specific structure of the radar body 100 described above is merely an example, and the point of improvement of the present application is not present here. The improvement of the present application resides in the shield 200.

Since the traffic radar is used outdoors, dust adheres to the outer surface of the transparent area 105, easily affecting the operation of the video assembly 109. The embodiment of the application improves the protective cover 200, and the air blowing component 203 is arranged inside the protective cover 200, and the air blowing component 203 can blow air towards the transparent area 105, so that dust is removed, and the aim of cleaning is fulfilled. The following will be described.

The shield 200 includes a second housing 201 and an air blowing assembly 203.

The second housing 201 is fixedly connected to the first housing 101. Specifically, the second housing 201 is detachably connected to the first housing 101. For example by screw fastening. Thus, for a traffic radar that has been put into service, the modified hood 200 can be directly replaced to reduce the cost of the update.

The second housing 201 is disposed around at least a portion of the edge of the front surface 103. At least part of the second housing 201 protrudes from the front surface 103. Specifically, the second housing 201 covers the top of the radar body 100, and does not cover the front of the front surface 103. The second case 201 can function to shield the radar main body 100 from light and rain.

The second housing 201 is hollow and has a receiving chamber 205. Specifically, the second housing 201 includes a first sub-portion 207 and a second sub-portion 209. The first sub-portion 207 is fixedly connected to the first housing 101. The second sub-portion 209 is fixedly connected to the first sub-portion 207, and encloses a receiving cavity 205. By providing the second housing 201 as a separate structure, assembly of the air blowing assembly 203 into the receiving chamber 205 is facilitated.

The side wall of the second case 201 has openings 211 communicating the inside and outside, respectively, and the openings 211 are provided toward the transparent region 105.

The blowing assembly 203 is accommodated in the second housing 201 and blows air toward the transparent region 105 through the opening 211. The arrows in fig. 3 indicate the direction of airflow. The air flow is blown obliquely from the side of the transparent area 105 to the transparent area 105 and takes away dust. Since the second housing 201 does not block the front of the front surface 103 and the air blowing assembly 203 is accommodated in the second housing 201, the air blowing assembly 203 does not block the front of the front surface 103, thereby preventing the air blowing assembly 203 from affecting the radar signal and the video signal.

Please refer to fig. 4 and 5. Fig. 4 is an enlarged view of a partial view in fig. 3, the airbag 213 being not pressed. Fig. 5 is a sectional view A-A of fig. 3, with the balloon 213 not compressed.

The blowing assembly 203 includes an airbag 213, a movable member 215, a connecting rod 217, an elastic member 219, and a driving member 221.

The air bag 213 is made of an elastic material. For example, the airbag 213 is made of a rubber material.

The airbag 213 is fixedly disposed in the second housing 201. Specifically, the inner wall surface of the second housing 201 is provided with a stopper 223. The limiting portion 223 is disposed around at least a portion of the outer periphery of the airbag 213. The stopper 223 serves to abut against the airbag 213 to define the position of the airbag 213.

The airbag 213 is capable of contracting its cavity under the compression of an external force and recovering after the external force is removed. The airbag 213 has an air blowing port 214 that communicates its cavity with the outside. The air-blowing port 214 is disposed toward the transparent region 105. Specifically, the air blowing port 214 is located in the opening 211. When the airbag 213 is compressed, air in the cavity thereof is blown out through the air-blowing port 214. When the airbag 213 is restored, the outside air fills the airbag 213 through the air blowing port 214.

The movable member 215 can be moved toward or away from the airbag 213. Specifically, the inner wall surface of the second housing 201 is provided with a guide 225 protruding. The guide portion 225 extends in the first direction X. The movable member 215 is engaged with the guide portion 225, and is movable relative to the second housing 201 along the first direction X or a direction opposite to the first direction X under the guide of the guide portion 225. When the movable member 215 moves in the first direction X, it is able to approach the airbag 213 to press the airbag 213. The movable member 215 can be separated from the airbag 213 away from the airbag 213 upon reverse movement in the first direction X.

The elastic member 219 acts on the movable member 215 for applying an elastic force to the movable member 215 to drive the movable member 215 away from the air bag 213. Specifically, the elastic member 219 elastically abuts against the movable member 215 and the second housing 201 at both ends in the first direction X, respectively. The elastic member 219 is compressed when the movable member 215 moves in the first direction X.

The connecting rod 217 is rotatably arranged and has a first end 227 and a second end 229 on opposite sides of the axis of rotation L. The second end 229 is rotatably coupled to the moveable member 215.

The first spacing H1 of the first end 227 and the axis of rotation L is less than the second spacing H2 of the second end 229 and the axis of rotation L. As such, when the connecting rod 217 rotates about the rotational axis L, the displacement of the first end 227 in the first direction X is less than the displacement of the second end 229 in the first direction X. The driving member 221 drives the first end 227 to displace slightly in the first direction X, i.e. the movable member 215 is driven to displace slightly in the first direction X.

The driving member 221 serves to drive the movable member 215 close to the airbag 213 to press the airbag 213. Specifically, the driving member 221 is configured to drive the first end 227 to rotate about the rotation axis L, such that the second end 229 drives the movable member 215 to approach the air bag 213. More specifically, the first end portion 227 has magnetism, and the driving member 221 is an electromagnet that is capable of magnetically attracting the first end portion 227 when energized, thereby driving the first end portion 227 to rotate (counterclockwise rotation) about the rotation axis L.

Please refer to fig. 6 and fig. 7 together. Fig. 6 is an enlarged view of a partial view in fig. 3, the airbag 213 being compressed. Fig. 7 is a sectional view A-A of fig. 3, the airbag 213 being compressed.

When the radar body 100 detects that the dust in the transparent region 105 reaches a predetermined amount, the electromagnet is energized. The electromagnet is energized to attract the first end 227, so that the connecting rod 217 rotates counterclockwise around the rotation axis L, and the connecting rod 217 drives the movable member 215 to move along the first direction X. The movable member 215 compresses the elastic member 219 and presses the airbag 213 during the movement in the first direction X, and the cavity of the airbag 213 is contracted so that the air in the airbag 213 is blown to the transparent region 105 through the air blowing port 214, thereby blowing away the dust of the transparent region 105.

After the electromagnet is energized for a predetermined period of time (e.g., 1 second), the electromagnet is de-energized. The elastic member 219 resets and drives the movable member 215 to move in the reverse direction of the first direction X. The movable member 215 drives the connecting rod 217 to rotate clockwise around the rotation axis L during the reverse movement along the first direction X, so that the connecting rod 217 is reset. The movable member 215 is separated from the airbag 213 during the reverse movement in the first direction X, so that the airbag 213 is restored and the outside air fills the airbag 213 through the air blowing port 214.

In this embodiment, the moving member 215 is driven by the electromagnet to move, so that the moving member 215 can move a predetermined distance in the first direction X in a shorter time, and the air in the air bag 213 can be blown out at a faster speed, which is beneficial to improving the cleaning effect.

In other embodiments, the action of the driving member 221 and the elastic member 219 on the movable member 215 may be reversed, that is, the elastic member 219 applies an elastic force to the movable member 215 to drive the movable member 215 to approach and press the air bag 213, and the driving member 221 is used to drive the movable member 215 away from the air bag 213.

Please refer to fig. 8. Fig. 8 is a cross-sectional view of a protective cover 200 in a traffic radar according to another embodiment of the present application, the airbag 213 being not compressed.

The embodiment of fig. 8 is a modification of the manner in which the movable member 215 is driven compared to the embodiment of fig. 1. This embodiment only describes the differences from the embodiment shown in fig. 1, and the rest is referred to the embodiment shown in fig. 1.

The screw 231 extends in the first direction X and is in threaded connection with the movable member 215 to form a driving engagement structure, so that the screw 231 can drive the movable member 215 to move in the first direction X or in a reverse direction of the first direction X when rotating.

The driving member 221 is a motor. An output shaft of the motor is connected with the screw 231, and the motor can drive the screw 231 to rotate forward or reversely.

In order to increase the moving speed of the movable member 215, the pitch of the screw 231 may be set to be large, or the rotational speed of the motor may be set to be high, or a transmission (not shown) may be connected between the output shaft of the motor and the screw 231 to increase the speed at which the motor drives the screw 231 to rotate.

Please refer to fig. 9. Fig. 9 is a cross-sectional view of a protective cover 200 in a traffic radar according to still another embodiment of the present application, the airbag 213 being not compressed.

The embodiment of fig. 9 is modified from the embodiment of fig. 1 in the construction of the airbag 213. This embodiment only describes the differences from the embodiment shown in fig. 1, and the rest is referred to the embodiment shown in fig. 1.

The airbag 213 extends substantially in a first direction X. The airbag 213 has a first end wall 237, a second end wall 239, and a circumferential side wall 233 connected between the first end wall 237 and the second end wall 239, which are disposed at intervals in the first direction X. The first end wall 237 is generally planar in length. The second end wall 239 is generally cone-shaped. The circumferential side wall 233 is generally bellows-shaped. The circumferential side wall 233 has a plurality of bending portions 235 arranged at intervals in the first direction X, and is bendable at the bending portions 235.

When the movable member 215 presses the airbag 213 in the first direction X, the circumferential side wall 233 is folded in the first direction X, so that the cavity of the airbag 213 is narrowed.

The airbag 213 is also provided with an elastic member 241 inside. The two ends of the elastic member 241 along the first direction X respectively elastically abut against the first end wall 237 and the second end wall 239. In a state where the movable member 215 is separated from the airbag 213, the elastic force of the elastic member 241 can restore the airbag 213.

In summary, according to the traffic radar provided by the embodiment of the application, the blowing component is arranged outside the edge of the front surface, so that the blowing component can be prevented from affecting radar signals and video signals. The blowing component can blow air towards the transparent area, so that dust is removed, and the aim of cleaning is fulfilled. The embodiment of the application cleans through the mode of blowing, can not harm the surface in transparent region yet.

In addition, the traffic radar is arranged outdoors, so that the air source is inconvenient to connect. According to the embodiment of the application, the air bag is extruded to generate the rapid flowing air, so that the environmental adaptability of the traffic radar is improved.

Again, setting up the subassembly of blowing in the protection casing in this application embodiment, can reduce the traffic radar update cost (only change the protection casing) to having delivered the use.

The above steps are presented merely to aid in understanding the method, structure, and core ideas of the present application. It will be apparent to those skilled in the art that various changes and modifications can be made herein without departing from the principles of the application, which are also intended to be within the scope of the appended claims.

Claims (10)

1. A traffic radar, comprising:

a first housing having a hollow structure, the first housing having a front surface with a transparent area;

a radar assembly housed within the first housing for acquiring radar signals of a target object located on an opposite side of the front surface;

the video component is accommodated in the first shell, is arranged opposite to the transparent area and is used for collecting video signals of the target object through the transparent area;

and the blowing component is arranged outside the first shell and is positioned outside the edge of the front surface and used for blowing air towards the transparent area.

2. The traffic radar of claim 1, wherein the blowing assembly comprises:

the air bag is made of elastic materials, can shrink the cavity of the air bag under the extrusion of external force, and is restored after the external force is removed, and is provided with an air blowing port which communicates the cavity with the outside, and the air blowing port is arranged towards the transparent area;

a movable member that can be moved toward or away from the airbag;

and the driving piece is used for driving the movable piece to approach the air bag so as to squeeze the air bag.

3. The traffic radar of claim 2, wherein the blowing assembly further comprises:

the elastic piece acts on the movable piece and is used for applying an elastic force to the movable piece so as to drive the movable piece to be far away from the air bag.

4. The traffic radar of claim 2, wherein the blowing assembly further comprises:

the connecting rod is rotatably arranged and provided with a first end part and a second end part which are positioned on two opposite sides of a rotation axis, and the first distance between the first end part and the rotation axis is smaller than the second distance between the second end part and the rotation axis;

wherein the driving member is configured to drive the first end portion to rotate about the rotational axis such that the second end portion drives the movable member to approach the airbag.

5. The traffic radar according to claim 4, wherein,

the first end part is magnetic, the driving piece is an electromagnet, and the electromagnet can magnetically adsorb the first end part when being electrified, so that the first end part is driven to rotate around the rotation axis.

6. The traffic radar according to claim 4, wherein,

the second end part is rotatably connected with the movable part.

7. The traffic radar of claim 1, wherein the radar apparatus further comprises:

the second shell is fixedly connected to the first shell, is enclosed outside at least part of the edge of the front surface, and at least part of the second shell protrudes out of the front surface;

wherein, the blowing subassembly set up in the second casing.

8. The traffic radar according to claim 7, characterized in that,

the second shell is of a hollow structure and is provided with openings which are respectively communicated with the inside and the outside, and the openings are arranged towards the transparent area;

wherein, the blowing component is accommodated in the second shell and blows towards the transparent area through the opening.

9. The traffic radar of claim 8, wherein the second housing comprises:

the first sub-part is fixedly connected to the first shell;

the second sub-part is fixedly connected with the first sub-part and is surrounded to form a containing cavity;

wherein, the blowing subassembly holding is in the holding chamber.

10. The traffic radar according to claim 7, characterized in that,

the second shell is detachably connected with the first shell.