CN211014628U - 76-82GHz automobile radar multi-target resolving power test system - Google Patents
76-82GHz automobile radar multi-target resolving power test system Download PDFInfo
- Publication number
- CN211014628U CN211014628U CN201921420757.0U CN201921420757U CN211014628U CN 211014628 U CN211014628 U CN 211014628U CN 201921420757 U CN201921420757 U CN 201921420757U CN 211014628 U CN211014628 U CN 211014628U
- Authority
- CN
- China
- Prior art keywords
- bracket
- corner reflector
- radar
- target
- test
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Radar Systems Or Details Thereof (AREA)
Abstract
The utility model discloses a 76-82GHz automobile radar multi-target resolving power test system, which comprises a test fixture, a CAN module, a control host, a corner reflector and a corner reflector bracket; the test fixture is used for fixing the radar equipment to be tested; the CAN module is used for realizing CAN communication between the test system and the radar equipment to be tested; the control host is used for recording test data; the corner reflector is used for target simulation; the corner reflector is fixed to the corner reflector support, just the utility model discloses a test place needs provide reliable test environment for radar multi-target resolving power test. Compare in the test scheme in the aspect of the radio frequency performance to the radar in traditional laboratory, the utility model discloses can realize the test to radar multi-target resolving power.
Description
Technical Field
The utility model belongs to the technical field of senior driving assistance system (ADAS), concretely relates to 76-82GHz car radar multi-target resolving power test system.
Background
In the automotive radar test, the radar multi-target resolving power test is a key concern of automotive manufacturers or suppliers. The multi-target resolving power of the radar is the capability of the radar to distinguish two adjacent targets. Since the automotive radar is applied to an Advanced Driving Assistance System (ADAS), the resolving power of the automotive radar to a target is important. However, the following problems still exist in the current multi-target resolving power test of the automobile radar:
first, radar microwave testing is not a field which is good for automobile manufacturers or suppliers, and most radar testing solutions in the market are mainly from radio frequency instrument manufacturers or microwave testing research institutions, and the radar testing is also focused on the radio frequency performance of radars, and a multi-target resolving power testing of radars is not a complete solution.
Secondly, at present, no clear standard exists for the multi-target resolving power test of the radar, and the test method is not standard.
In view of the above, there is an urgent need to design a new measurement method to overcome the problems of the existing test method that the test method is not standardized and the test is focused on the radio frequency performance of the radar and the multi-target resolving power of the radar is not tested.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model aims to provide a 76-82GHz automobile radar multi-target resolving power test system.
In order to achieve the above objects and other related objects, the present invention provides a technical solution: a76-82 GHz automobile radar multi-target resolving power test system comprises: test fixture, CAN module, control host computer, corner reflector support, its characterized in that: the corner reflector bracket is formed by connecting a transverse bracket and a longitudinal bracket, a first side surface of the transverse bracket is fixedly connected with a second side surface of the longitudinal bracket, and the height of the transverse bracket is consistent with that of the longitudinal bracket, and the upper surface of the transverse bracket is horizontal; the corner reflector bracket is provided with two moving modules, the moving modules can perform horizontal or longitudinal linear movement on the upper surface of the corner reflector bracket, the corner reflector is fixedly installed on the moving modules, and a wave-absorbing material is arranged in front of the corner reflector bracket; the test fixture is fixedly provided with a radar to be tested, the CAN module is connected with the radar to be tested, and the control host is connected with the CAN module; the corner reflector bracket is arranged in the FOV direction of the radar to be detected.
The preferable technical scheme is as follows: the detection experiment is carried out in a test field, the angular resolution of the test field is less than or equal to 0.1 degrees, and the distance resolution is less than or equal to 0.1 m.
The preferable technical scheme is as follows: and a wall made of wave-absorbing materials is arranged behind the corner reflector bracket.
The preferable technical scheme is as follows: the corner reflectors are divided into two types, and the RCS values of the corner reflectors are 0dBsm and 10dBsm respectively.
The preferable technical scheme is as follows: and pulleys are arranged at the bottom of the corner reflector bracket.
Due to the application of the technical scheme, compared with the prior art, the invention has the advantages that:
the utility model discloses be equipped with two removal modules on the corner reflector support, these two removal modules can carry out horizontal or fore-and-aft rectilinear movement through the guide rail that sets up on the corner reflector support. Therefore, the test of the transverse multi-target resolution and the longitudinal multi-target resolution of the radar to be tested can be realized by only adopting one system.
Drawings
Fig. 1 is a schematic diagram of the present invention.
FIG. 2 is a schematic diagram of a horizontal multi-target resolution test.
FIG. 3 is a schematic diagram of a longitudinal multi-target resolution test.
FIG. 4 is a top view of a transverse multi-objective resolution test experimental corner reflector holder.
FIG. 5 is a top view of a vertical multi-objective resolution test experimental corner reflector holder.
Fig. 6 is a schematic view of the connection of the transverse bracket and the longitudinal bracket.
In the above drawings: 1. a control host; 2. a CAN module; 3. testing the clamp; 4. a corner reflector; 5. a corner reflector holder; 6. a wave-absorbing material; 7. a radar to be detected; 8. a first target; 9. a second target; 10. a third target; 11. a fourth target; 12. a moving module; 13. a guide rail; 14. a transverse support; 15. a longitudinal support; 16. a first side surface; 17. a second side.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1-3. It should be understood that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which the product of the present invention is usually placed in when used, which is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should be further noted that, unless otherwise specifically stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, and a communication between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, the utility model comprises a test fixture 3, a CAN module 2, a control host 1, a corner reflector 4 and a corner reflector bracket 5; the corner reflector bracket 5 consists of a transverse bracket 14 and a longitudinal bracket 15, a first side surface 16 on the transverse bracket 14 is welded and fixed with a second side surface 17 on the longitudinal bracket 15, and the upper surfaces of the transverse bracket 14 and the longitudinal bracket 15 are level in height; guide rails 13 are arranged on the upper surface of the corner reflector bracket 5 along the directions of the transverse bracket 14 and the longitudinal bracket 15, the moving module 12 is movably arranged on the guide rails 13, the moving module 12 can perform transverse or longitudinal linear movement on the guide rails 13, the corner reflector 4 is fixedly arranged on the moving module 12, and the wave absorbing material 6 is arranged in front of the corner reflector bracket 5; the test fixture 3 is fixedly provided with a radar 7 to be tested, the CAN module 2 is connected with the radar 7 to be tested, and the control host 1 is connected with the CAN module 2; the corner reflector holder 5 is arranged in the FOV direction of the radar 7 to be measured.
Wherein: fov (angle of view) field angle: refers to the detection angle range of the radar; CAN module: the CAN module is used for realizing CAN communication between the test system and the radar equipment to be tested; the control host is used for recording test data; corner reflectors are used for target simulation.
Preferred embodiments: the experiment testing system is arranged in a testing field for detection experiment, the angular resolution of the testing field is less than or equal to 0.1 degrees, and the distance resolution is less than or equal to 0.1m, so that the follow-up testing experiment is ensured.
Preferred embodiments: no other object except the test target exists in the FOV direction of the radar 7 to be tested, so that interference is reduced, and test accuracy is improved.
Preferred embodiments: and a wall made of wave-absorbing materials 6 is arranged behind the corner reflector bracket 5 to prevent the interference of miscellaneous targets and influence on the test accuracy.
Preferred embodiments: the corner reflectors 4 are divided into two types, and the RCS values of the corner reflectors are 0dBsm and 10dBsm respectively, so that the longitudinal multi-target resolving power test can be carried out.
Preferred embodiments: the bottom of the corner reflector holder 5 is provided with a pulley for movement.
The utility model discloses the test principle:
the radar 7 to be tested is fixedly installed on the test fixture 3, then the CAN module controls the radar 7 to be tested to transmit signals to the corner reflector 4, the signals are refracted by the corner reflector 4, echo signals parallel to the transmitted signals are generated, a simulation target is obtained, the radar 7 to be tested receives the echo signals, and the control host 1 records test data. Then pass through again the utility model discloses an experimental scheme, the test data of analysis record judge the multi-target resolving power of the radar 7 that awaits measuring.
The utility model discloses test experiment scheme:
scheme 1: transverse multi-target resolution test (transverse multi-target resolution refers to the transverse resolution of the radar for two targets with the same RCS value).
As shown in fig. 2: the present embodiment measures the closest distance between the two targets in the lateral direction that can be resolved by the radar 7 under test. RCS values of the first target 8 and the second target 9 are the same, the two targets are on the same longitudinal straight line, the distance between the two targets is w, the middle point of the distance is C, the radar 7 to be detected and the point C are on the same horizontal line, and horizontal distances between the radar 7 to be detected and the first target 8 and the second target 9 are d.
In the test scheme, d is divided into four working conditions of 3m, 15m, 50m and 100 m. The spacing w is divided into three types of 5m, 1m and 0.1 m. Setting the distance w as 5m, if two targets are not detected when the distance is w, and if two targets are detected when the distance is w +5, setting the distance as 1m within the range of the distance [ w, w +5 ]; in the range of the distance [ w, w +5], if two objects are not detected when the distance is w ', and two objects are detected when the distance is w' +1, the distance is set to 0.1m in the range of the distance [ w ', w' +1 ]; in the range of the distance [ w ', w' +1], if two targets are not detected at the distance w ", and two targets are detected at the distance w" +0.1, w "+ 0.1 is recorded as the radar transverse direction close target resolution distance.
Scheme 2: longitudinal multi-target resolution test (longitudinal multi-target resolution refers to the resolution of the radar in the longitudinal direction for two targets with different RCS values).
As shown in fig. 3: the embodiment measures the nearest target distance between two targets which can be longitudinally resolved by the radar to be measured. The RCS value of the third target 10 is 0dBsm, the RCS value of the fourth target 11 is 10dBsm, the radar 7 to be detected, the third target 10 and the fourth target 11 are on the same horizontal line, the third target 10 is located between the radar 7 to be detected and the fourth target 11, the distance between the radar 7 to be detected and the fourth target 11 is d1, and the distance between the third target 10 and the fourth target 11 is d 2.
In the test scheme, d1 is divided into three working conditions of 3m, 15m and 50 m. The separation d2 between the third target 10 and the fourth target 11 is initially 0m, and as d2 increases, the third target 10 moves progressively further away from the fourth target 11, closer to the radar 7. d2 is divided into three categories of 5m, 1m and 0.1 m. d2 is first set to 5m, and if two objects are not detected at distance d2 and two objects are detected at distance d2+5, the distance is set to 1m within the range of distances [ d2, d2+5 ]; in the range of the distance [ d2, d2+5], if two objects are not detected at the distance d2 'and two objects are detected at the distance d2' +1, the distance is set to 0.1m in the range of the distance [ d2', d2' +1 ]; in the range of the distance [ d2', d2' +1], if no target is detected at the distance of d2 ", and if a target is detected at the distance of d 2" +0.1, d2 "+ 0.1 is recorded as radar longitudinal resolution.
Therefore, the utility model provides a 76-82GHz car radar multi-target resolving power test system compares in traditional laboratory and concentrates on the test of going on in the aspect of the radio frequency performance of radar, adopts to be equipped with two mobile module on the corner reflector support, and these two mobile module can carry out horizontal or fore-and-aft rectilinear movement on the corner reflector support. The test of the horizontal multi-target resolution and the vertical multi-target resolution of the radar to be tested can be realized by only adopting one system, and the test of the multi-target resolution of the radar is standardized.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (5)
1. A76-82 GHz automobile radar multi-target resolving power test system comprises: test fixture, CAN module, control host computer, corner reflector support, its characterized in that:
the corner reflector bracket is formed by connecting a transverse bracket and a longitudinal bracket, a first side surface of the transverse bracket is fixedly connected with a second side surface of the longitudinal bracket, and the height of the transverse bracket is consistent with that of the longitudinal bracket, and the upper surface of the transverse bracket is horizontal; the corner reflector bracket is provided with two moving modules, the moving modules can perform horizontal or longitudinal linear movement on the upper surface of the corner reflector bracket, the corner reflector is fixedly installed on the moving modules, and a wave-absorbing material is arranged in front of the corner reflector bracket;
the test fixture is fixedly provided with a radar to be tested, the CAN module is connected with the radar to be tested, and the control host is connected with the CAN module;
the corner reflector bracket is arranged in the FOV direction of the radar to be detected.
2. The 76-82GHz automotive radar multi-target resolving power testing system of claim 1, characterized in that: the 76-82GHz automobile radar multi-target resolving power testing system is arranged in a testing field for detection experiments, the angular resolution of the testing field is less than or equal to 0.1 degrees, and the distance resolution is less than or equal to 0.1 m.
3. The 76-82GHz automotive radar multi-target resolving power testing system of claim 1, characterized in that: and a wall made of wave-absorbing materials is arranged behind the corner reflector bracket.
4. The 76-82GHz automotive radar multi-target resolving power testing system of claim 1, characterized in that: the corner reflectors are divided into two types, and the RCS values of the corner reflectors are 0dBsm and 10dBsm respectively.
5. The 76-82GHz automotive radar multi-target resolving power testing system of claim 1, characterized in that: and pulleys are arranged at the bottom of the corner reflector bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921420757.0U CN211014628U (en) | 2019-08-29 | 2019-08-29 | 76-82GHz automobile radar multi-target resolving power test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921420757.0U CN211014628U (en) | 2019-08-29 | 2019-08-29 | 76-82GHz automobile radar multi-target resolving power test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211014628U true CN211014628U (en) | 2020-07-14 |
Family
ID=71472993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921420757.0U Active CN211014628U (en) | 2019-08-29 | 2019-08-29 | 76-82GHz automobile radar multi-target resolving power test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211014628U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112986930A (en) * | 2020-12-25 | 2021-06-18 | 煤炭科学研究总院 | Target moving device and radar detection system with same |
| CN113702936A (en) * | 2021-08-02 | 2021-11-26 | 中汽创智科技有限公司 | Analog detection system of millimeter wave radar and method for determining azimuth angle resolution of analog detection system |
-
2019
- 2019-08-29 CN CN201921420757.0U patent/CN211014628U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112986930A (en) * | 2020-12-25 | 2021-06-18 | 煤炭科学研究总院 | Target moving device and radar detection system with same |
| CN113702936A (en) * | 2021-08-02 | 2021-11-26 | 中汽创智科技有限公司 | Analog detection system of millimeter wave radar and method for determining azimuth angle resolution of analog detection system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211014628U (en) | 76-82GHz automobile radar multi-target resolving power test system | |
| CN102707208B (en) | Positioning system and method of local discharge of transformer | |
| CN101344495B (en) | Measuring apparatus for reflection index of wave suction material | |
| CN203698310U (en) | Vehicle high-precision locating device based on inductive loop wire | |
| CN110609259A (en) | Vehicle-mounted millimeter wave radar test system | |
| CN107561515A (en) | A kind of automobile-used millimetre-wave radar detectivity test system | |
| CN201266180Y (en) | Measuring apparatus for reflection index of wave suction material | |
| CN102213752A (en) | Automatic three-dimensional radio frequency identification (RFID) test device | |
| CN108169750A (en) | A kind of vehicle-mounted millimeter wave radar system | |
| CN104266960A (en) | Carrier recombination lifetime test system adopting scanning type microwave reflection method and test method | |
| CN102589492A (en) | Large curved surface flexibility detection device | |
| CN106409003A (en) | Roadside parking space detection device based on composite detection mechanism and detection method thereof | |
| CN115079112B (en) | Test system and test method for near-earth dynamic RCS (Radar Cross section) test of aero-engine | |
| CN211905463U (en) | Automatic test shielding case | |
| CN112105937A (en) | Antenna directional pattern testing method, device and storage medium | |
| CN103940391A (en) | Carriage locating method and system based on automatic material collecting and transferring, and automatic material sampling system | |
| CN208818765U (en) | A kind of Antenna testing system | |
| Xia et al. | Development of a high speed UWB GPR for rebar detection | |
| CN112684435A (en) | Ultrasonic radar FOV test bench calibration system suitable for passenger door perception system | |
| CN202712130U (en) | Open-short (OS) circuit testing apparatus | |
| CN201130249Y (en) | Testing channel for radar speedometer calibrating apparatus | |
| CN200953048Y (en) | Tunnel liner thickness geological radar detecting device | |
| CN208421219U (en) | A kind of high-precision locomotive radar | |
| CN201984159U (en) | Speed-measuring instrument for flat-plate narrow-wave radar | |
| CN219657861U (en) | Millimeter wave radar test system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215000 Jiangsu city of Suzhou Province Economic and Technological Development Zone of Wujiang Yang Road South, Longqiao Road West Patentee after: Suzhou Ruidi measurement and Control Technology Co., Ltd Address before: 215000 Jiangsu city of Suzhou Province Economic and Technological Development Zone of Wujiang Yang Road South, Longqiao Road West Patentee before: SUZHOU LINKTRON RADSYS Co.,Ltd. |