CN210835215U - Test detection device for automobile radar - Google Patents
Test detection device for automobile radar Download PDFInfo
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- CN210835215U CN210835215U CN201921174858.4U CN201921174858U CN210835215U CN 210835215 U CN210835215 U CN 210835215U CN 201921174858 U CN201921174858 U CN 201921174858U CN 210835215 U CN210835215 U CN 210835215U
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Abstract
The utility model discloses a test detection device for an automobile radar, wherein the automobile radar is arranged in a camera bellows which is also arranged in a temperature control box, and the camera bellows can provide an electromagnetic wave environment without clutter and multipath emission; the delay forwarding simulator provides distance and even speed information far larger than the actual size of the incubator, so that the whole transmitting link, receiving link, signal and information processing functions of the automobile radar can be checked in the temperature control box, and a test result can be given by the data analysis unit according to configuration information, so that the problem that the automobile radar is not matched with stable target output during high and low temperature tests can be solved; the device has the advantages of low manufacturing cost, small occupied space, improvement of the accuracy and consistency of millimeter wave radar measurement and the like.
Description
Technical Field
The utility model belongs to the technical field of the car radar, concretely relates to car is experimental detection device for radar.
Background
When the existing automobile millimeter wave radar is used for a performance test in a high-temperature and low-temperature environment, due to the fact that received and generated electromagnetic wave signals are involved, the performance test is limited by the test environment, the detection result of the radar is limited by the space of a test room and a temperature box, the output target is unstable or no target information is output, and the judgment of the test result is greatly influenced.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing an automobile radar is with experimental detection device can solve when automobile radar is at high low temperature test, does not have the problem that the target was exported in the cooperation stability, can improve test efficiency, reduces the erroneous judgement rate.
A test detection device for an automobile radar comprises a temperature control box (8), a dark box (4), a time delay forwarding simulator (1), an electromagnetic wave receiving and transmitting antenna horn (2) and a data analysis unit (6); wherein, the tested automobile radar (5) is arranged on an opening on one side surface of the dark box (4), and the signal transceiving end of the automobile radar (5) is positioned in the dark box (4); the electromagnetic wave receiving and transmitting antenna horn (2) is arranged on the inner wall surface of one side of the dark box (4) opposite to the automobile radar (5); the delay forwarding simulator (1) is positioned outside the dark box (4); wave-absorbing materials are laid on the inner wall of the camera bellows (4), and the working wave band is consistent with the wave band of electromagnetic waves emitted by the automobile radar (5); the dark box (4) is positioned inside the temperature control box (8); one side of the camera bellows (4) provided with the electromagnetic wave receiving and transmitting antenna horn (2) is tightly attached to the inner wall of the temperature control box (8), and the electromagnetic wave receiving and transmitting antenna horn (2) sequentially penetrates through the temperature control box (8) and the camera bellows (4) to be connected with the delay forwarding simulator (1);
the automobile radar (5) transmits electromagnetic wave signals and receives the electromagnetic wave signals transmitted by the electromagnetic wave receiving and transmitting antenna horn (2);
an electromagnetic wave receiving and transmitting antenna horn (2) receives an electromagnetic wave signal transmitted by an automobile radar (5);
after receiving the electromagnetic wave signals received by the electromagnetic wave receiving and transmitting antenna horn (2) from the automobile radar (5), the delay forwarding simulator (1) delays for a set time and then controls the electromagnetic wave receiving and transmitting antenna horn (2) to transmit the electromagnetic wave signals;
the data analysis unit (6) receives electromagnetic signals received by the automobile radar (5) from the electromagnetic wave transceiving antenna horn (2), and evaluates the reliability index of the automobile radar (5).
Furthermore, the system also comprises a direct current power supply (7) which is used for supplying power to the automobile radar (5) and the time delay forwarding simulator (1).
Furthermore, the device also comprises an operation table top (9) for placing the data analysis unit (6) and the direct current power supply (7).
Further, the data analysis unit (6) is also used for displaying the index evaluation result in real time.
The utility model discloses following beneficial effect has:
the utility model discloses a test detection device for automobile radar, the automobile radar is arranged in a camera bellows, the camera bellows is arranged in a temperature control box, and the camera bellows can provide an electromagnetic wave environment without clutter and multipath emission; the delay forwarding simulator provides distance and even speed information far larger than the actual size of the incubator, so that the whole transmitting link, receiving link, signal and information processing functions of the automobile radar can be checked in the temperature control box, and a test result can be given by the data analysis unit according to configuration information, so that the problem that the automobile radar is not matched with stable target output during high and low temperature tests can be solved; the device has the advantages of low manufacturing cost, small occupied space, improvement of the accuracy and consistency of millimeter wave radar measurement and the like.
Drawings
FIG. 1 is a schematic view of the structure of the device of the present invention without a temperature control box;
FIG. 2 is a schematic structural diagram of the device of the present invention;
the system comprises a delay forwarding simulator, an electromagnetic wave receiving and transmitting antenna horn, a wave absorbing material, a dark box, an automobile radar, a data analysis unit, a direct current power supply, a temperature control box and an operation table top, wherein the delay forwarding simulator is 1, the electromagnetic wave receiving and transmitting antenna horn is 2, the wave absorbing material is 3, the dark box is 4, the automobile radar is 5, the data analysis unit is 6, the direct current power supply is 7, the temperature
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings by way of examples.
As shown in fig. 1 and 2, the test detection device for the automotive radar of the present invention comprises a temperature control box 8, a dark box 4, a delay forwarding simulator 1, an electromagnetic wave receiving and transmitting antenna horn 2 and a data analysis unit 6; wherein, the tested automobile radar 5 is arranged on an opening on one side surface of the dark box 4, and the signal transceiving end of the automobile radar 5 is positioned in the dark box 4; the electromagnetic wave receiving and transmitting antenna horn 2 is arranged on the inner wall surface of one side of the dark box 4 opposite to the automobile radar 5; the delay forwarding simulator 1 is positioned outside the dark box 4; wave-absorbing materials are laid on the inner wall of the dark box 4, and the working wave band is consistent with the wave band of the electromagnetic waves emitted by the automobile radar 5; the dark box 4 is positioned inside the temperature control box 8; in order to facilitate the connection of the electromagnetic wave transmitting and receiving antenna horn 2 and the delay forwarding simulator 1, one side of the camera bellows 4, on which the electromagnetic wave transmitting and receiving antenna horn 2 is installed, is tightly attached to the inner wall of the temperature control box 8, and the electromagnetic wave transmitting and receiving antenna horn 2 sequentially penetrates through the temperature control box 8 and the camera bellows 4 to be connected with the delay forwarding simulator 1. And the direct current power supply 7 is used for supplying power to the automobile radar 5 and the delay forwarding simulator 1.
The automobile radar 5 transmits electromagnetic wave signals and receives the electromagnetic wave signals transmitted by the electromagnetic wave receiving and transmitting antenna horn 2;
the electromagnetic wave receiving and transmitting antenna horn 2 receives an electromagnetic wave signal transmitted by the automobile radar 5;
after receiving the electromagnetic wave signals received by the electromagnetic wave receiving and transmitting antenna horn 2 from the automobile radar 5, the delay forwarding simulator 1 delays for a set time and then controls the electromagnetic wave receiving and transmitting antenna horn 2 to transmit the electromagnetic wave signals; the automotive radar 5 receives the electromagnetic wave signal and simulates a radar transmission signal of a target; the set time of the delay is calculated and set according to the distance of the target.
The data analysis unit 6 receives the electromagnetic signals received by the automotive radar 5 from the electromagnetic wave transceiving antenna horn 2 and evaluates the reliability index of the automotive radar 5. The utility model discloses an improve and lie in providing new testing arrangement, do not improve the test assessment method to automobile radar 5, the method of aassessment can be implemented according to existing method.
The camera bellows 4 is cuboid, wave-absorbing materials capable of absorbing electromagnetic waves emitted by the automobile radar 5 are distributed on the inner wall of the bellows body, and the electromagnetic waves are absorbed by the wave-absorbing materials after being transmitted into the bellows body, so that the small camera bellows 4 can simulate a free-space non-reflection electromagnetic environment; the temperature control box 8 provides a temperature environment required for testing for the automobile radar 5 inside.
The data analysis unit 6 is also used for configuring parameters such as receiving gain, transmitting power, a simulation distance point and a simulation speed value of the delay forwarding simulator 1, acquiring output data of the automobile radar 5 after the configuration parameters are issued, analyzing the data of the automobile radar 5 according to the issued parameters, and giving a judgment result whether the data of the automobile radar 5 is in accordance with the configuration parameters, so as to give out whether a test result is normal, the data analysis unit analyzes the radar data in real time, dynamically displays radar uploading data through an upper computer interface, has a good man-machine interaction interface, and the upper computer records and alarms the real-time analysis result, displays and stores the data for real-time observation and historical query.
The utility model discloses an experimental testing arrangement's work flow as follows:
after the automobile radar 5 transmits electromagnetic waves, the delay forwarding simulator 1 receives the transmission signals of the automobile radar 5 through the electromagnetic wave receiving and transmitting antenna horn 2, and the delay forwarding simulator 1 calculates the delay time and the offset frequency of the signals according to the distance and the speed of the simulation target configured by the data analysis unit 6; after the corresponding time delay and frequency offset are carried out on the signals, the signals are transmitted out by the electromagnetic wave receiving and transmitting antenna loudspeaker 2; the process simulates the process that the target reflects radar signals, the automobile radar 5 collects signals transmitted by the electromagnetic wave receiving and transmitting antenna horn 2, namely echo signals of the target are received, data of the automobile radar 5 are analyzed, and a judgment result of whether the data of the automobile radar 5 are in line with configuration parameters is given, so that whether a test result is normal or not is given, and the data analysis unit can analyze the radar data in real time.
The automobile radar 5 is arranged in the dark box 4, the dark box 4 is also arranged in the temperature control box 8, and the dark box 4 can provide an electromagnetic wave environment without clutter and multipath emission; the delay forwarding simulator 1 provides distance and even speed information far larger than the actual size of the incubator, so that the whole transmitting link, receiving link, signal and information processing functions of the automobile radar 5 can be checked in the temperature control box 8, and a test result can be given by the data analysis unit 6 according to configuration information.
Example (b):
in the high and low temperature test process, as shown in fig. 2, the camera bellows 4 is arranged in the temperature control box 8, the delay forwarding simulator 1 is arranged outside the temperature controller 8, and the data analysis unit 6 and the direct current power supply 7 are arranged on the operation table top 9. According to the figure 1, an automobile radar 5 is placed on a corresponding switching tool of a small-sized camera bellows 4, an electromagnetic wave receiving and transmitting antenna horn 2 is extended into a corresponding opening of the small-sized camera bellows 4, a data analysis unit 6 is opened, a delay forwarding simulator 1 is configured into a static target mode of forwarding 100m through a communication interface, the automobile radar 5 is powered on to transmit a radio frequency signal with a certain central frequency point and a certain bandwidth according to a radar internal firmware program, the radio frequency signal is received by the electromagnetic wave receiving and transmitting antenna horn 2 and is transmitted to the delay forwarding simulator 1, the delay forwarding simulator 1 carries out signal processing on the received radar signal according to static target configuration parameters of 100m, the received radar signal is converted into radio frequency to be transmitted through the horn antenna 2, the automobile radar 5 receives the transmitted signal of the horn antenna and processes the signal according to the firmware program and outputs a target to the data analysis unit 6 through the communication interface, the data analysis unit 6 receives the detection result file and displays the detection result file on a display screen for a worker to check and observe, once the error between the reported result of the tested object and the simulation target of the delay forwarding simulator 1 is found not to be in the receiving range, the threshold value passing alarm function carried by the upper computer software can remind the worker to carry out corresponding operation, and at the moment, the high-low temperature test detection process completes closed loop.
The data analysis unit 6 can also display the detection result in real time and store the detection result into a database, and when the staff need to look up the historical data, the historical record of the software of the upper computer can be used for inquiring.
In summary, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A test detection device for an automobile radar is characterized by comprising a temperature control box (8), a dark box (4), a time delay forwarding simulator (1), an electromagnetic wave receiving and transmitting antenna horn (2) and a data analysis unit (6); wherein, the tested automobile radar (5) is arranged on an opening on one side surface of the dark box (4), and the signal transceiving end of the automobile radar (5) is positioned in the dark box (4); the electromagnetic wave receiving and transmitting antenna horn (2) is arranged on the inner wall surface of one side of the dark box (4) opposite to the automobile radar (5); the delay forwarding simulator (1) is positioned outside the dark box (4); wave-absorbing materials are laid on the inner wall of the camera bellows (4), and the working wave band is consistent with the wave band of electromagnetic waves emitted by the automobile radar (5); the dark box (4) is positioned inside the temperature control box (8); one side of the camera bellows (4) provided with the electromagnetic wave receiving and transmitting antenna horn (2) is tightly attached to the inner wall of the temperature control box (8), and the electromagnetic wave receiving and transmitting antenna horn (2) sequentially penetrates through the temperature control box (8) and the camera bellows (4) to be connected with the delay forwarding simulator (1);
the automobile radar (5) transmits electromagnetic wave signals and receives the electromagnetic wave signals transmitted by the electromagnetic wave receiving and transmitting antenna horn (2);
an electromagnetic wave receiving and transmitting antenna horn (2) receives an electromagnetic wave signal transmitted by an automobile radar (5);
after receiving the electromagnetic wave signals received by the electromagnetic wave receiving and transmitting antenna horn (2) from the automobile radar (5), the delay forwarding simulator (1) delays for a set time and then controls the electromagnetic wave receiving and transmitting antenna horn (2) to transmit the electromagnetic wave signals;
the data analysis unit (6) receives electromagnetic signals received by the automobile radar (5) from the electromagnetic wave transceiving antenna horn (2), and evaluates the reliability index of the automobile radar (5).
2. The test detection device for the automotive radar as claimed in claim 1, characterized by further comprising a direct current power supply (7) for supplying power to the automotive radar (5) and the delay forwarding simulator (1).
3. The test detection device for automotive radars according to claim 2, characterized by further comprising an operation table (9) for placing the data analysis unit (6) and the dc power supply (7).
4. The test detection device for automotive radars according to claim 1, characterized in that said data analysis unit (6) is also adapted to display the index evaluation result in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921174858.4U CN210835215U (en) | 2019-07-24 | 2019-07-24 | Test detection device for automobile radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921174858.4U CN210835215U (en) | 2019-07-24 | 2019-07-24 | Test detection device for automobile radar |
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| Publication Number | Publication Date |
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| CN210835215U true CN210835215U (en) | 2020-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921174858.4U Active CN210835215U (en) | 2019-07-24 | 2019-07-24 | Test detection device for automobile radar |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113703004A (en) * | 2021-08-10 | 2021-11-26 | 一汽解放汽车有限公司 | System and method for detecting running reliability of vehicle-mounted radar and computer equipment |
| CN115598607A (en) * | 2022-10-12 | 2023-01-13 | 扬州宇安电子科技有限公司（Cn） | Debugging device for reconfigurable radar communication integrated signal direction-finding positioning equipment |
-
2019
- 2019-07-24 CN CN201921174858.4U patent/CN210835215U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113703004A (en) * | 2021-08-10 | 2021-11-26 | 一汽解放汽车有限公司 | System and method for detecting running reliability of vehicle-mounted radar and computer equipment |
| CN115598607A (en) * | 2022-10-12 | 2023-01-13 | 扬州宇安电子科技有限公司（Cn） | Debugging device for reconfigurable radar communication integrated signal direction-finding positioning equipment |
| CN115598607B (en) * | 2022-10-12 | 2023-10-27 | 扬州宇安电子科技有限公司 | Reconfigurable radar communication integrated signal direction finding positioning equipment debugging device |
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