CN213423462U

CN213423462U - Radar test fixture

Info

Publication number: CN213423462U
Application number: CN202022293828.4U
Authority: CN
Inventors: 刘力; 申亚飞; 薛岩
Original assignee: Shanghai Motor Vehicle Inspection Certification and Tech Innovation Center Co Ltd
Current assignee: Shanghai Motor Vehicle Inspection Certification and Tech Innovation Center Co Ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-06-11
Anticipated expiration: 2030-10-15

Abstract

The utility model relates to a radar test fixture. The radar test tool is suitable for a rotary table. The radar test tool comprises a radar mounting module, a fixing support and a radar mounting plate, wherein the radar mounting module is used for mounting a radar and comprises the radar mounting plate and the fixing support; the bumper mounting module is used for mounting a bumper and comprises a bottom plate and an adjustable mounting bracket arranged on the bottom plate, the bottom plate is fixed on the rotary table, and the adjustable mounting bracket is used for bearing the bumper; the radar and the bumper are kept at the set spacing distance, horizontal angle and pitch angle through the assembly of the radar mounting module and the bumper mounting module. The utility model provides a radar test fixture, overall structure is compact, is convenient for install and test, promotes efficiency of software testing.

Description

Radar test fixture

Technical Field

The utility model relates to a vehicle test technical field especially relates to a radar test fixture.

Background

Most of millimeter wave radars on the market are installed inside a plastic bumper, but the plastic bumper has a certain influence on the performance of the radar. The main influencing factors are: the distance between the radar (antenna surface) and the bumper, the horizontal angle formed by the radar and the bumper in the horizontal direction, and the pitch angle formed by the radar and the bumper in the vertical direction. A set of test tool is urgently needed in the market, and is used for testing the influence degree of the factors on the performance of the radar in a laboratory, so that reference is provided for the installation of the radar, and the great trouble in the field of millimeter wave radars is solved.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned problem of prior art, the utility model provides a radar test fixture, overall structure is compact, is convenient for install and test, promotes efficiency of software testing.

Specifically, the utility model provides a radar test fixture is applicable to the revolving stage, radar test fixture is used for installing radar and bumper, radar test fixture includes:

the radar mounting module is used for mounting the radar and comprises a radar mounting plate and a fixed support, the fixed support is fixed on the rotary table, the fixed support is matched and fixed with the radar mounting plate, and the radar mounting plate is used for bearing the radar;

the bumper mounting module is used for mounting a bumper and comprises a bottom plate and an adjustable mounting bracket arranged on the bottom plate, the bottom plate is fixed on the rotary table, and the adjustable mounting bracket is used for bearing the bumper;

and through the assembly of the radar mounting module and the bumper mounting module, the radar and the bumper are kept at the set spacing distance, the horizontal angle and the pitching angle.

According to the utility model discloses an embodiment, the fixed bolster includes base and spliced pole, one side of spliced pole is fixed in base, opposite side are provided with the recess one side of radar mounting panel is equipped with the boss, the boss is suitable for deeply the recess fit is fixed.

According to the utility model discloses an embodiment, recess and boss are the rectangle the periphery of boss forms the chamfer.

According to the utility model discloses an embodiment be equipped with first mounting hole on the spliced pole be equipped with waist type hole on the boss, first mounting hole and waist type hole correspond, penetrate through the screw first mounting hole and waist type hole so that the spliced pole is fixed with the boss cooperation.

According to the utility model discloses an embodiment be equipped with cross mounting hole on the radar mounting panel, penetrate through the screw cross mounting hole is in order to fix the radar.

According to the utility model discloses an embodiment, adjustable installing support, including cantilever, first lateral wall, second lateral wall, first disc and second disc, the cantilever is fixed in on the bottom plate, first lateral wall and second lateral wall are arranged relatively, and both set up perpendicularly respectively the both ends of cantilever, first disc and second disc are fixed respectively the top of first lateral wall and second lateral wall and both are relative, be equipped with the second mounting hole on first disc and the second disc respectively, be used for fixing the bumper.

According to an embodiment of the present invention, the first side wall and the second side wall can be moved and fixed in the length direction of the cantilever to adjust the distance between the first disc and the second disc.

According to the utility model discloses an embodiment, be provided with first scale mark on the cantilever, be used for instructing first lateral wall and second lateral wall arrive the distance of cantilever intermediate position, so that the bumper forms relatively on the horizontal direction the symmetry of radar.

According to the utility model discloses an embodiment, first disc and second disc can be relative respectively first lateral wall and second lateral wall rotate set up the second scale mark on first lateral wall and the second lateral wall for instruct the rotation angle of first disc and second disc.

According to an embodiment of the present invention, a third mounting hole is provided at the middle position of the cantilever, and the cantilever penetrates through the third mounting hole and the bottom plate via a screw, so that the cantilever can rotate relative to the bottom plate;

the cantilever is provided with an arc-shaped guide rail, a third scale line is arranged on the periphery of the arc-shaped guide rail by taking the third mounting hole as the center of a circle, and the arc-shaped guide rail and the third scale line are matched with the bottom plate to display the rotation angle of the cantilever relative to the bottom plate.

The utility model provides a pair of radar test fixture, through mutually supporting of radar installing module and bumper installing module, can fix the relative position relation of radar and bumper to can carry out the test when any one factor of distance, horizontal angle and every single move angle changes, promote the test accuracy, reduce the experimental control degree of difficulty.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principle of the invention. In the drawings:

fig. 1 shows a schematic structural diagram of a radar testing tool according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of the radar mounting module of fig. 1.

Fig. 3 is a structural schematic view of a fixing bracket of the radar mounting module.

Fig. 4 is a schematic structural view of a radar mounting plate of the radar mounting module.

Fig. 5 is a schematic structural view of the bumper installation module of fig. 1.

Fig. 6 is a schematic view of the second disk and second sidewall of fig. 5.

Fig. 7 is a schematic view of the structure of the cantilever in fig. 5.

FIG. 8 is a schematic view of the structure of the base plate in FIG. 5

Wherein the figures include the following reference numerals:

radar test tool 101 radar installation module 102

Bumper mounting module 103 radar mounting plate 104

Base plate 105 adjustable mounting bracket 106

Base 107 connecting column 108

Groove 109 boss 110

Chamfer 111 first mounting hole 112

Waist-shaped hole 113 cross-shaped mounting hole 114

Cantilever 115 first side wall 116

Second side wall 117 first disk 118

Second disk 119 second mounting hole 120

First tick mark 121 second tick mark 122

Third mounting hole 123 arc-shaped guide rail 124

Third scale line 125 countersunk guide 126

Fourth tick mark 127 second mark line 128

Threaded hole 129

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited. Further, although the terms used in the present application are selected from publicly known and used terms, some of the terms mentioned in the specification of the present application may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Further, it is required that the present application is understood not only by the actual terms used but also by the meaning of each term lying within.

Conventionally, the impact test of the bumper on the radar performance was performed in a anechoic chamber. The rotary table is arranged at one end of the inner side of the anechoic chamber and used for fixing the radar (when the radar is installed, the radar antenna surface and the rotary center of the rotary table are required to be on the same vertical plane, namely, the position of the radar antenna surface is fixed). And a horn antenna is arranged on the other side of the anechoic chamber, so that the horn antenna corresponds to the radar, and the signal receiving condition of the radar is measured. When a bumper is arranged in front of the radar, the receiving condition of the radar to the signal is tested.

Fig. 1 shows a schematic structural diagram of a radar testing tool according to an embodiment of the present invention. As shown, the radar test tool 100 is suitable for the rotary table. The radar test tool 100 is used for installing a radar and a bumper, so that subsequent tests are facilitated. The radar test tool 100 mainly includes a radar mounting module 101 and a bumper mounting module 102.

The radar mounting module 101 is used for mounting a radar. The radar mounting module 101 includes a radar mounting plate 103 and a fixing bracket 104. Fixed bolster 104 is fixed on the revolving stage, and fixed bolster 104 is fixed with the cooperation of radar mounting panel 103, and radar mounting panel 103 is used for bearing the radar.

The bumper installation module 102 is used to install a bumper. The bumper mounting module 102 includes a base plate 105 and an adjustable mounting bracket 106 disposed on the base plate 105. A base plate 105 is fixed to the turntable and an adjustable mounting bracket 106 is used to carry the bumper.

The utility model provides a radar test fixture 100 passes through radar installing module 101 and bumper installing module 102's assembly to make radar and bumper can keep at the spacing distance of settlement, horizontal angle and every single move angle, the follow-up test of being convenient for.

Fig. 2 is a schematic structural view of the radar mounting module of fig. 1. Fig. 3 is a structural schematic view of a fixing bracket of the radar mounting module. Fig. 4 is a schematic structural view of a radar mounting plate of the radar mounting module. As shown, the mounting bracket 104 preferably includes a base 107 and an attachment post 108. The connecting column 108 is fixed to the base 107 on one side and has a recess 109 on the other side. A boss 110 is arranged on one side of the radar mounting plate 103, the boss 110 can be in plug fit with the groove 109, and the boss 110 is suitable for penetrating into the groove 109 to fix the radar mounting plate 103 and the connecting column 108. More preferably, the recess 109 and the boss 110 are cooperatively shaped, both being rectangular. A chamfer 111 is formed on the periphery of the boss 110, and a shape corresponding to the chamfer 111 is formed on the inner side of the recess 109. The chamfer 111 is provided to facilitate assembly therebetween, and the chamfer 111 provides a guide for the boss 110 to be inserted into the recess 109 in the direction of the chamfer 111. It will be readily appreciated that the positions of the boss 110 and chamfer 111 may be interchanged without affecting the actual function of the radar-mounting module 101.

Preferably, a first mounting hole 112 is formed in the connecting post 108. The boss 110 is provided with a kidney-shaped hole 113. The first mounting hole 112 and the kidney-shaped hole 113 correspond in position. The connecting column 108 is fixed to the boss 110 by screws passing through the first mounting hole 112 and the kidney-shaped hole 113. Due to the fact that distances between the radar antenna surfaces of different types and the installation surface are different, the front and back positions of the radar installation can be conveniently adjusted through the design of the waist-shaped hole 113 and the first installation hole 112, namely the depth degree of the boss 110 penetrating into the groove 109, and the structure can be compatible with more types of radars. The first mounting holes 112 may be multiple, for example, the first mounting holes 112 may be disposed on two adjacent sides of the rectangular connecting column 108, which is compatible with both horizontal and vertical mounting of the radar. The first mounting hole 112 may be a counter-sunk hole, which facilitates assembly and is aesthetically pleasing.

Preferably, a cross-shaped mounting hole 114 is provided on the radar mounting plate 103. The radar is fixed by screws inserted through the cross-shaped mounting holes 114. The cross-shaped mounting hole 114 is used for being compatible with radars with different mounting hole distances, and the practicability is improved.

Fig. 5 is a schematic structural view of the bumper installation module of fig. 1. Fig. 6 is a schematic view of the second disk and second sidewall of fig. 5. Fig. 7 is a schematic view of the structure of the cantilever in fig. 5. Fig. 8 is a schematic view of the structure of the base plate in fig. 5. As shown, preferably, the adjustable mounting bracket 106 includes a cantilever 115, a first sidewall 116, a second sidewall 117, a first disk 118, and a second disk 119. Wherein the cantilever 115 is fixed to the base plate 105. The cantilever arm 115 can be rotated relative to the base plate 105 to adjust the horizontal angle of the bumper. The first and

second side walls

116 and 117 are oppositely disposed and vertically disposed at both ends of the cantilever 115, respectively. A first disc 118 and a second disc 119 are fixed to the top of the first side wall 116 and the second side wall 117, respectively, in opposition to each other. The first and

second disks

118 and 119 are respectively provided with second mounting holes 120, the second mounting holes 120 having an inner diameter of about 5.5mm, the second mounting holes 120 being used for fixing a bumper. As will be readily appreciated, both ends of the bumper are respectively hung on the first and

second disks

118 and 119 through the second mounting holes 120 to cover the radar to constitute a state for actual testing.

Preferably, the first side wall 116 and the second side wall 117 are fixed after being moved in the length direction of the cantilever 115. One function of the adjustment structure of the first and

second side walls

116 and 117 is to adjust the separation distance between the first and

second disks

118 and 119 so that the distance therebetween is suitable for a particular type of bumper; another effect is to have the radar in the middle of the bumper so that the bumper is horizontally symmetrical with respect to the radar position.

Preferably, referring to fig. 5, a first graduation mark 121 is disposed on the cantilever 115. The first graduation marks 121 cooperate with the edges of the first and

second side walls

116 and 117 to indicate the distance between the first and

second side walls

116 and 117 to the middle of the cantilever 115. When the distances from the first side wall 116 and the second side wall 117 to the middle of the cantilever 115 are adjusted to be equal, it indicates that the bumper is formed to be symmetrical with respect to the radar in the horizontal direction.

Preferably, the first and

second disks

118, 119 are rotatable relative to the first and

second side walls

116, 117, respectively. Second graduation marks 122 are arranged on the first side wall 116 and the second side wall 117. The second graduation marks 122 form graduation circles on the outer peripheries of the first and

second disks

118 and 119 for cooperating with the first and

second disks

118 and 119 to indicate the rotation angles of the first and

second disks

118 and 119, respectively. In this embodiment, the first disc 118 and the second disc 119 are further provided with a second marking line 128. The first disc 118 and the second disc 119 are rotated to adjust the pitch angle of the bumper, the second mark line 128 is matched with the second scale mark 122, and the value on the second scale mark 122 pointed by the second mark line 128 is the pitch angle value. The centers of rotation of the first disc 118 and the second disc 119 are aligned and fall within the horizontal center plane of the radar, so that the distance between the center of the radar and the bumper is constant in the process of adjusting the pitch angle of the bumper.

Preferably, a third mounting hole 123 is provided at a middle position of the cantilever 115. The arm 115 is screwed into the third mounting hole 123 and the threaded hole 129 of the base plate 105, so that the arm 115 can be fixed after rotating relative to the base plate 105. An arc-shaped guide rail 124 is formed on the cantilever 115, and a third scale line 125 is formed on the periphery of the arc-shaped guide rail 124 around the third mounting hole 123. In this embodiment, a third mark line 130 is further provided on the bottom plate. The arcuate guide 124, the third tick mark 125, and the third mark 130 on the base plate 105 cooperate to indicate the horizontal angle of rotation of the boom 115 relative to the base plate 105. The cantilever 115 is rotated to adjust the horizontal angle between the bumper and the radar, the third mark line 130 is matched with the third scale mark 125, and the value of the third scale mark 125 pointed by the third mark line 130 is the horizontal rotation angle value. The screws are tightened to secure the cantilever 115 and base plate 105 to the turntable, thereby locking the bumper position. The third mounting hole 123 is located in the vertical central plane of the radar, and therefore the distance between the center of the radar and the bumper can be guaranteed to be unchanged when the horizontal rotation angle is adjusted.

Preferably, 3 parallel longitudinal countersunk rails 126 are provided on the base plate 105. And fourth graduation marks 127 are provided at both sides of the countersunk head guide 126. A marking line is provided on the horizontal part of the turntable, which marking line cooperates with a fourth scale to indicate the position of the bottom plate 105 relative to the turntable. The bottom plate 105 is moved, and the numerical value of the fourth scale pointed by the mark line on the turntable is the distance value. When the corresponding value is 0, it indicates that the distance between the radar and the bumper is 0 in the current state. The arrangement of 3 countersunk guide rails 126 on the bottom plate 105 can ensure that the fixed connection between the bottom plate 105 and the turntable can be realized through 3 screws which are not collinear, so that the bottom plate 105 and the turntable are firmly connected, the fourth scale values on the two sides are checked at the same time, when the numerical values indicated by the two sides are consistent, the bottom plate 105 is parallel-moved, and the horizontal angle between the bumper and the radar is not changed.

Preferably, the third mounting hole 123 may be a countersunk hole, which is convenient to assemble, occupies a small space, and is beautiful and practical.

The utility model provides a pair of radar test fixture is applicable to the bumper of installing different thickness and material to can adjust distance, horizontal angle and every single move angle between radar and the bumper alone, in order to guarantee to obtain the influence of a certain variable between to radar and the bumper. Therefore, a plurality of test tools for adjusting a certain variable independently are replaced. When the radar test tool is used for testing an experiment of a certain influence factor, other influence factors can be guaranteed to be unchanged, the scientific single variable principle is met, the cost is effectively reduced, and the test efficiency is improved.

It will be apparent to those skilled in the art that various modifications and variations can be made to the above-described exemplary embodiments of the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

Claims

1. The utility model provides a radar test fixture, is applicable to the revolving stage, radar test fixture is used for installing radar and bumper, its characterized in that, radar test fixture includes:

2. The radar test tool as recited in claim 1, wherein the fixing bracket comprises a base and a connecting column, one side of the connecting column is fixed on the base, the other side of the connecting column is provided with a groove, one side of the radar mounting plate is provided with a boss, and the boss is suitable for being inserted into the groove to be matched and fixed.

3. The radar test tool of claim 2 wherein the recess and the boss are rectangular and a chamfer is formed around the periphery of the boss.

4. The radar test tool of claim 2, wherein a first mounting hole is formed in the connecting column, a kidney-shaped hole is formed in the boss, the first mounting hole corresponds to the kidney-shaped hole, and a screw penetrates through the first mounting hole and the kidney-shaped hole to enable the connecting column and the boss to be fixed in a matched mode.

5. The radar test tool of claim 1, wherein cross-shaped mounting holes are formed in the radar mounting plate, and screws are inserted into the cross-shaped mounting holes to fix the radar.

6. The radar test tool of claim 1, wherein the adjustable mounting bracket comprises a cantilever, a first side wall, a second side wall, a first disc and a second disc, the cantilever is fixed on the bottom plate, the first side wall and the second side wall are arranged oppositely and are respectively and vertically arranged at two ends of the cantilever, the first disc and the second disc are respectively fixed at the tops of the first side wall and the second side wall and are opposite to each other, and second mounting holes are respectively formed in the first disc and the second disc and are used for fixing the bumper.

7. The radar test fixture of claim 6 wherein the first and second sidewalls are movable and fixed in a direction along the length of the cantilever to adjust a separation distance between the first and second disks.

8. The radar test fixture of claim 7 wherein the cantilever has a first graduation mark disposed thereon for indicating the distance between the first and second sidewalls to the middle of the cantilever, such that the bumper is horizontally symmetrical with respect to the radar.

9. The radar test tool of claim 6, wherein the first disk and the second disk can rotate relative to the first side wall and the second side wall respectively, and second scale marks are formed on the first side wall and the second side wall and used for indicating the rotation angles of the first disk and the second disk.

10. The radar test tool of claim 6, wherein a third mounting hole is formed in the middle of the cantilever, and the cantilever is inserted into the third mounting hole and the bottom plate through a screw, so that the cantilever can rotate relative to the bottom plate;