A simulation test bench for evaluating the intelligent performance of millimeter wave radar

Abstract

The present invention provides a simulation test bench for evaluating the intelligence performance of a millimeter-wave radar, comprising a base, a bracket, a frame plate, a motor, a turntable and a traction component, wherein the bracket is slidably connected to one side of the base, the bracket is loaded with a millimeter-wave radar, the turntable is rotatably connected to the other side of the base, the frame plate is fixedly connected to the turntable, a test mold is mounted on the frame plate, the motor is fixedly connected to the base on one side of the turntable, the motor drives the turntable to rotate, the traction component is mounted in the base below the bracket, and the traction component drives the bracket to slide in a direction close to or away from the frame plate. The present invention has the advantage of being able to perform accurate accuracy tests on vehicle-mounted millimeter radars.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile testing, and in particular to a simulation test bench for evaluating the intelligence performance of a millimeter wave radar. Background Art

[0002] With the development of ADAS (Advanced Driver Assistance System) and unmanned driving technology, its electronic control system is becoming more and more diversified, and the types of control units and sensors are becoming more and more abundant. When selecting control units and sensors, it is particularly important to build a test platform to conduct professional tests on various devices. The commonly used test platforms in the industry are generally static platforms or real cars equipped with specific devices, but the former is difficult to dynamically test the trial scenarios of various sensor components; and the latter requires repeated disassembly and assembly of different devices under test when testing different components, and repeated calibration and initialization settings, which not only increases time and labor costs, but also brings errors and cannot provide a reliable basis for system selection. Summary of the invention

[0003] In order to solve the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a simulation test bench for evaluating the intelligence performance of millimeter-wave radar to overcome the defects in the prior art.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a simulation test bench for evaluating the intelligence performance of millimeter-wave radar, including a base, a bracket, a frame plate, a motor, a turntable and a traction component, the bracket is slidably connected to one side of the base, the bracket is loaded with a millimeter-wave radar, the turntable is rotatably connected to the other side of the base, the frame plate is fixedly connected to the turntable, a test mold is mounted on the frame plate, the motor is fixedly connected to the base on one side of the turntable, the motor drives the turntable to rotate, the traction component is mounted in the base below the bracket, and the traction component drives the bracket to slide in a direction close to or away from the frame plate.

[0005] As a further illustration of the present invention, preferably, the bracket is fixedly connected with slide rails on the left and right sides of one end surface close to the frame plate, the cross-section of the slide rails is L-shaped, and the housing of the millimeter wave radar is inserted into the two slide rails to be slidably connected with the bracket.

[0006] As a further illustration of the present invention, preferably, a bottom plate is fixedly connected to the bottom of the slide rail, the length of the bottom plate is the distance between the two slide rails, and one side of the bottom plate is fixedly connected to the bracket.

[0007] As a further illustration of the present invention, preferably, a plurality of threaded holes are provided on the bracket at intervals, and the threaded holes are distributed on the end surface of the bracket between the two slide rails.

[0008] As a further illustration of the present invention, preferably, L-shaped straight rails are fixedly connected to the upper and lower sides of the shelf plate close to one end surface of the bracket, wherein the spacing between the lower straight rail and the turntable is less than 100 mm.

[0009] As a further explanation of the present invention, preferably, the test mold includes a main board, a limit plate and a template. The height of the main board is less than the spacing between the straight rails. The limit plate is fixedly connected to one side of the main board. The height of the limit plate is equal to the maximum spacing on the inner side of the straight rail. The limit plate is slidably connected in the straight rail. The template is fixedly connected to the other side of the main board. The side surface of the template close to the bracket is a curved surface. The curved surface on the template has the same curvature and outer diameter as the front end face, left and right side faces or rear end face of the automobile.

[0010] As a further illustration of the present invention, preferably, the distance between the bottom end surface of the template and the turntable is 110 mm to 150 mm.

[0011] As a further explanation of the present invention, preferably, locking plates are fixedly connected to the upper and lower end surfaces of the main board, the spacing between the locking plates is larger than the minimum spacing on the inner side of the straight rail, and the spacing between the locking plates and the limit plates is 1mm to 3mm larger than the width of the bent end of the straight rail.

[0012] As a further illustration of the present invention, preferably, a gear is fixedly connected to the output end of the motor, a gear ring is fixedly connected to the outside of the arc surface of the turntable, and the gear is meshed with the gear ring.

[0013] As a further explanation of the present invention, preferably, the traction component includes a motor, a winch and a steel wire, the two winches are rotatably connected in the base, the motor is fixed in the base and rotatably connected to one winch, the steel wire is wound around the two winches, and both ends of the steel wire are respectively fixed to the front and rear end surfaces of the bracket.

[0014] The present invention has the following beneficial effects:

[0015] The present invention can simulate various states of two vehicles meeting in actual road conditions by setting a bracket with a simple structure and a rotatable frame plate. At this time, the data of the millimeter-wave radar can be collected for evaluation and compared with the required data, thereby realizing the function of judging the intelligence of the millimeter-wave radar. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of the present invention;

[0017] Figure 2 is a rear view of the present invention;

[0018] Figure 3 It is a side view of the present invention.

[0019] Description of reference numerals:

[0020] 1. Base; 11. Slide groove; 2. Bracket; 21. Slide rail; 22. Bottom plate; 23. Threaded hole; 3. Frame plate; 31. Straight rail; 4. Motor; 5. Turntable; 6. Traction component; 61. Electric motor; 62. Capstan; 63. Steel wire; 7. Test mold; 71. Main board; 72. Limit plate; 73. Template; 74. Lock plate. DETAILED DESCRIPTION

[0021] In order to further understand the structure, features and other purposes of the present invention, the preferred embodiments are described in detail with reference to the accompanying drawings as follows. The embodiments described in the drawings are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention.

[0022] A simulation test bench for evaluating the intelligent performance of millimeter wave radar, combined with Figure 1 , Figure 3 , including a base 1, a bracket 2, a frame plate 3, a motor 4, a turntable 5 and a traction component 6, the bracket 2 is slidably connected to one side of the base 1, the bracket 2 is loaded with a millimeter wave radar, the turntable 5 is rotatably connected to the other side of the base 1, the frame plate 3 is fixedly connected to the turntable 5, a test mold 7 is mounted on the frame plate 3, the motor 4 is fixedly connected to the base 1 on one side of the turntable 5, the motor 4 drives the turntable 5 to rotate, the traction component 6 is mounted in the base 1 below the bracket 2, and the traction component 6 drives the bracket 2 to slide in a direction close to or away from the frame plate 3.

[0023] Combination Figure 1 , Figure 2 The bracket 2 is a square plate, and slide grooves 11 are provided on both sides of the base 1. Both ends of the bracket 2 are slidably connected to the slide grooves 11, and the length direction of the slide grooves 11 is perpendicular to the axial direction of the turntable 5; the left and right sides of the bracket 2 close to one end surface of the frame plate 3 are respectively fixed with slide rails 21, and the cross-section of the slide rails 21 is L-shaped. The shell of the millimeter-wave radar is inserted into the two slide rails 21 to be slidably connected with the bracket 2, and the slide rails 21 are provided to play the role of installing the millimeter-wave radar; and the millimeter-wave radar can slide on the bracket 2, which changes the distance between the millimeter-wave radar and the base 1, simulates the different installation heights of radars in different existing cars, and helps Test which heights can collect data information more accurately; a bottom plate 22 is fixedly connected to the bottom of the slide rail 21, and the length of the bottom plate 22 is the spacing length of the two slide rails 21. One side of the bottom plate 22 is fixedly connected to the bracket 2 to avoid contact between the radar and the base 1, ensuring that the radar has a larger detection range; a plurality of threaded holes 23 are spaced apart on the bracket 2, and the threaded holes 23 are distributed on the end face of the bracket 2 between the two slide rails 21. The threaded holes 23 can be connected to the radar housing and the threaded holes by bolts passing through the bolts, or the bolts can be directly screwed into the threaded holes, and then the radar is placed on the bolts to fix the position of the radar.

[0024] Combination Figure 1 , Figure 3The traction component 6 includes a motor 61, a winch 62 and a steel wire 63. The two winches 62 are rotatably connected in the base 1. The motor 61 is fixedly connected in the base 1 and rotatably connected to one winch 62. The steel wire 63 is wound around the two winches 62. Both ends of the steel wire 63 are respectively fixedly connected to the front and rear end surfaces of the bracket 2. The length direction of the steel wire 63 is the same as the length direction of the slide groove 11. When the motor 61 rotates forward or reversely, the steel wire 63 can be used to pull the bracket 2 to move on the base 1 to achieve the effect of approaching or moving away from the frame plate 3, so as to simulate the change in the distance between the two vehicles in the actual driving environment, so as to collect different feedback signals of the radar.

[0025] Combination Figure 2 , Figure 3 The frame plate 3 is a square plate, and L-shaped straight rails 31 are fixedly connected on the upper and lower sides of one end surface of the frame plate 3 close to the bracket 2, wherein the spacing between the lower straight rail 31 and the turntable 5 is less than 100 mm, which can not only avoid the friction between the straight rail and the base 1, but also facilitate the welding of the straight rail 31 on the frame plate 3, while lowering the center of gravity of the frame plate 3, so that the end surface of the frame plate 3 remains vertical when rotating; a gear is fixedly connected to the output end of the motor 4, and a gear ring is fixedly connected to the outer arc surface of the turntable 5, and the gear is meshed with the gear ring, so that the motor 4 can drive the turntable 5 to rotate, simulating various steering or driving angles with adjacent vehicles in an actual driving environment, and collecting different feedback data from the radar.

[0026] Combination Figure 2 , Figure 3 The test mold 7 includes a main board 71, a limiting plate 72 and a template 73. The height of the main board 71 is less than the spacing between the straight rails 31. The limiting plate 72 is fixedly connected to one side of the main board 71. The height of the limiting plate 72 is equal to the maximum spacing of the inner side of the straight rail 31. The limiting plate 72 is slidably connected in the straight rail 31. The template 73 is fixedly connected to the other side of the main board 71. The side of the template 73 close to the bracket 2 is a curved surface. The curved surface on the template 73 is the same as the curvature and outer diameter of the front face, left and right sides or rear end face of the car. By simulating the outer surface of an existing car, it is possible to avoid using a real car. The test cost is reduced and the accuracy of the test result can be guaranteed. The distance between the bottom end surface of the template 73 and the turntable 5 is 110 mm to 150 mm to simulate the distance between the existing vehicle chassis and the ground, so that the feedback signal of the radar can be closer to the actual data. The upper and lower end surfaces of the main board 71 are fixedly connected with locking plates 74. The distance between the locking plates 74 is greater than the minimum distance on the inner side of the straight rail 31. The distance between the locking plates 74 and the limiting plates 72 is 1 mm to 3 mm larger than the width of the bent end of the straight rail 31 to limit the deflection of the template 73 and ensure that the template 73 can be stably fixed on the frame plate 3.

[0027] In summary, the present invention simulates the actual driving environment to the greatest extent by setting up a simple test structure, and by changing the distance between the bracket 2 and the frame plate 3, as well as the angle of the frame plate 3, by collecting data of the radar in different driving environments, and comparing the data predetermined during scene modeling, so as to evaluate whether the intelligence of the radar meets the requirements. Under the premise of ensuring high evaluation accuracy, the test cost is effectively reduced, and the operation is simple and the test is convenient.

[0028] It should be noted that the above invention content and specific implementation methods are intended to demonstrate the practical application of the technical solution provided by the present invention and should not be interpreted as limiting the scope of protection of the present invention. Those skilled in the art can make various modifications, equivalent substitutions or improvements within the spirit and principles of the present invention. The scope of protection of the present invention shall be subject to the attached claims.

Claims

1. A simulation test bench for evaluating the intelligence performance of millimeter wave radar, characterized in that: The invention comprises a base (1), a bracket (2), a frame plate (3), a motor (4), a turntable (5) and a traction component (6), wherein the bracket (2) is slidably connected to one side of the base (1), a millimeter wave radar is loaded on the bracket (2), the turntable (5) is rotatably connected to the other side of the base (1), the frame plate (3) is fixedly connected to the turntable (5), and the frame plate (3) is fixedly connected to the upper and lower sides of one end surface of the bracket (2), wherein the distance between the lower straight rail (31) and the turntable (5) is less than 100 mm; the test mold (7) comprises a main board (71), a limit plate (72) and a template (73), wherein the height of the main board (71) is less than the distance between the straight rails (31), the limit plate (72) is fixedly connected to one side of the main board (71), the height of the limit plate (72) is equal to the maximum distance between the inner sides of the straight rails (31), the limit plate (72) is slidably connected in the straight rails (31), and the template (73) ) is fixedly connected to the other side of the main board (71); a side surface of the template (73) close to the bracket (2) is a curved surface; the curved surface on the template (73) has the same curvature and outer diameter as the front face, left and right side faces or rear face of the automobile; the motor (4) is fixedly connected to the base (1) on one side of the turntable (5); the motor (4) drives the turntable (5) to rotate; the traction component (6) is mounted in the base (1) below the bracket (2); the traction component (6) drives the bracket (2) to slide in a direction approaching or moving away from the frame plate (3); the traction component (6) comprises a motor (61), a winch (62) and a steel wire (63); the two winches (62) are rotatably connected in the base (1); the motor (61) is fixedly connected in the base (1) and is rotatably connected to one winch (62); the steel wire (63) is wound around the outside of the two winches (62); and the two ends of the steel wire (63) are respectively fixedly connected to the front and rear end surfaces of the bracket (2).

2. A simulation test bench for evaluating the intelligence performance of millimeter wave radar according to claim 1, characterized in that: Slide rails (21) are respectively fixedly connected to the left and right sides of one end surface of the bracket (2) close to the frame plate (3); the cross section of the slide rails (21) is L-shaped; the housing of the millimeter wave radar is inserted into the two slide rails (21) to be slidably connected to the bracket (2).

3. A simulation test bench for evaluating the intelligence performance of millimeter wave radar according to claim 2, characterized in that: A bottom plate (22) is fixedly connected to the bottom of the slide rail (21). The length of the bottom plate (22) is the length of the spacing between the two slide rails (21). One side surface of the bottom plate (22) is fixedly connected to the bracket (2).

4. A simulation test bench for evaluating the intelligence performance of millimeter wave radar according to claim 3, characterized in that: A plurality of threaded holes (23) are provided at intervals on the bracket (2), and the threaded holes (23) are distributed on the end surface of the bracket (2) between the two slide rails (21).

5. A simulation test bench for evaluating the intelligence performance of millimeter wave radar according to claim 4, characterized in that: The spacing between the bottom end surface of the template (73) and the turntable (5) is 110 mm to 150 mm.

6. A simulation test bench for evaluating the intelligence performance of millimeter wave radar according to claim 5, characterized in that: Locking plates (74) are fixedly connected to the upper and lower end surfaces of the main board (71), the spacing between the locking plates (74) is greater than the minimum spacing inside the straight rail (31), and the spacing between the locking plates (74) and the limiting plates (72) is 1 mm to 3 mm greater than the width of the bent end of the straight rail (31).

7. A simulation test bench for evaluating the intelligence performance of millimeter wave radar according to claim 6, characterized in that: A gear is fixedly connected to the output end of the motor (4), and a gear ring is fixedly connected to the outside of the arc surface of the rotating disk (5), and the gear is meshed with the gear ring.

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