CN213338011U - Microwave camera bellows for testing high-frequency radar of automobile - Google Patents
Microwave camera bellows for testing high-frequency radar of automobile Download PDFInfo
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- CN213338011U CN213338011U CN202022153322.3U CN202022153322U CN213338011U CN 213338011 U CN213338011 U CN 213338011U CN 202022153322 U CN202022153322 U CN 202022153322U CN 213338011 U CN213338011 U CN 213338011U
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Abstract
The utility model relates to a microwave camera bellows for automobile high-frequency radar test, which comprises a camera bellows body, wherein a radar to be tested is arranged in the camera bellows body, a fixed bracket is arranged in the camera bellows body, and the radar to be tested is arranged at the top of the fixed bracket; the inside of the camera bellows body is also provided with at least two arc tracks, each arc track is connected with an antenna bracket in a sliding way, and the top of the antenna bracket is provided with an antenna; the antenna support is further provided with a driving mechanism, and the driving mechanism is used for driving the antenna support to slide along the corresponding arc track. The utility model discloses set up two at least circular arc tracks to sliding connection antenna boom on every circular arc track can be according to the test scene settlement, and the accurate antenna that removes accomplishes the setting of test angle, and sets up two at least antennas, can simulate two at least interference sources, more is close true scene, is favorable to improving the measuring accuracy of radar.
Description
Technical Field
The utility model relates to a microwave camera bellows technical field, concretely relates to microwave camera bellows for car high frequency radar test.
Background
The automobile is developing towards the direction of intellectualization and networking as a main vehicle in modern society, an auxiliary driving system is an important guarantee for the safety of the intelligent automobile, and the millimeter wave radar is one of main sensors in the auxiliary driving system, so that the function test of the radar is particularly important.
When testing the performance of the automobile radar, a large number of test scenarios are required, and the field test cost is high, so that a person skilled in the art proposes to realize the sensor simulation test of an Advanced Driving Assistance System (ADAS) by simulating a target motion scene in a microwave dark box.
The Chinese invention patent CN201710330502.4 discloses a real-time simulation test system and method for an in-loop of a vehicle-mounted radar, which can simulate the target motion in a real scene in a darkroom to test the performance of the radar, but in the technical scheme, only a single interference source can be simulated, and the environmental deviation in the actual running process of a vehicle is large.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the to-be-solved technical problem of the utility model is to provide a microwave camera bellows for car high frequency radar test, it can be to millimeter wave radar sensor target emulation, through emulation target motion scene, accomplishes ADAS's sensor emulation test, and it sets up a plurality of antennas, can simulate a plurality of interference sources, improves radar test accuracy.
In order to solve the technical problem, the utility model provides a microwave camera bellows for automobile high-frequency radar test, which comprises a camera bellows body, wherein a radar to be tested is arranged in the camera bellows body, a fixed bracket is arranged in the camera bellows body, and the top of the fixed bracket is provided with the radar to be tested; the inside of the camera bellows body is also provided with at least two arc tracks, each arc track is connected with an antenna bracket in a sliding way, and the top of the antenna bracket is provided with an antenna; the antenna support is further provided with a driving mechanism, and the driving mechanism is used for driving the antenna support to slide along the corresponding arc track.
In the utility model, the user edits the typical target motion scene through the client of PXI VRTS and downloads the scene; the PXI VRTS resolves simulation target related information according to a motion scene, generates distance, speed, angle and RCS control words of the motion target, generates an echo signal through an antenna and simulates the motion scene of the target; meanwhile, the test process is carried out in a microwave dark box, so that the repeated test can be finished under the condition that no external signal interference exists; furthermore, the utility model discloses set up two at least circular arc tracks to sliding connection antenna boom on every circular arc track can be according to the test scene settlement, and the accurate antenna that removes accomplishes the setting of test angle, and sets up two at least antennas, can simulate two at least interference sources, more is close true scene, is favorable to improving the measuring accuracy of radar.
Preferably, a rack is arranged on the circular arc track along the length direction of the circular arc track; the driving mechanism comprises a motor arranged on the antenna support, a driving gear is connected to an output shaft of the motor, and the driving gear is meshed with the rack on the corresponding arc track. The motor and the driving gear are arranged on the antenna bracket, so that the installation space can be saved.
Preferably, an inner sliding groove is arranged on the inner side of the circular arc track, an outer sliding groove is arranged on the outer side of the circular arc track, and the inner sliding groove and the outer sliding groove are coaxially arranged with the circular arc track; two rows of rollers are arranged at the bottom of the antenna bracket and respectively penetrate through the inner chute and the outer chute of the corresponding circular arc track. By adopting the sliding connection structure, the relative sliding between the antenna bracket and the corresponding arc track can be smoother, and the test angle of the antenna can be conveniently adjusted.
Preferably, a mounting plate is arranged at the bottom of the antenna bracket, the motor is connected to the mounting plate, and the roller is connected to the bottom of the mounting plate.
Preferably, a plurality of the circular arc tracks are coaxially arranged.
Preferably, two circular arc tracks are arranged in the camera bellows body.
Preferably, the heights of the radar to be measured and the antenna are consistent.
Preferably, the utility model discloses a microwave camera bellows for car high frequency radar test is still including connecting the instrument cabinet of camera bellows body bottom, the bottom of this instrument cabinet is provided with the universal wheel. Design into integral type structure with instrument cabinet and camera bellows body, be convenient for remove, do not receive the restriction of test site.
Preferably, a cabinet door is arranged on one side of the instrument cabinet, and a ventilation opening is arranged on the side wall of the instrument cabinet.
Preferably, wave-absorbing materials are arranged on the inner wall of the camera bellows body.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic three-dimensional structure diagram of a microwave camera bellows for testing a high-frequency radar of an automobile according to an embodiment of the present invention;
fig. 2 is a front view of a microwave camera bellows for high-frequency radar testing of an automobile according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a cross-sectional view B-B of FIG. 2;
fig. 5 is a schematic view of an installation structure of an antenna according to an embodiment of the present invention;
fig. 6 is a schematic view of a sliding connection structure between an antenna bracket and a corresponding circular arc track according to an embodiment of the present invention.
Description of the drawings:
1-a dark box body; 2-an instrument cabinet; 3-universal wheels; 4-fixing the bracket; 5-circular arc orbit; 51-a rack; 52-inner chute; 53-outer chute; 6-an antenna mount; 61-a mounting plate; 62-a roller; 7-a motor; 71-driving a gear.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 5, the present embodiment provides a microwave camera bellows for an automobile high-frequency radar test, which includes a camera bellows body 1, wherein a wave-absorbing material is disposed on an inner wall of the camera bellows body 1 for shielding an external interference signal, so as to ensure that a repeated test is completed without external signal interference; the bottom of the camera bellows body 1 is connected with an instrument cabinet 2, the bottom of the instrument cabinet 2 is provided with universal wheels 3, and one side of the instrument cabinet 2 is also provided with a cabinet door. This embodiment designs as an organic whole structure with camera bellows body 1 and instrument cabinet 2 to install universal wheel 3 additional in the bottom, can be convenient for remove whole microwave camera bellows, be convenient for use under multiple scene.
A fixed support 4 is arranged on the bottom wall of the inner side of the camera bellows body 1, and the top of the fixed support 4 is used for mounting a radar to be detected; still coaxial two circular arc tracks 5 that are provided with on the inboard diapire of camera bellows body 1, equal sliding connection has antenna boom 6 on every circular arc track 5, and the top of this antenna boom 6 is used for installing the antenna for the height of antenna is unanimous with the height of the radar that awaits measuring. In the embodiment, two antenna brackets 6 are arranged, and two antennas can be installed to simulate two interference sources, so that the detection precision of the radar is improved; in practice, three or more circular arc tracks can be arranged according to the requirement of the test, and an antenna bracket is connected on each circular arc track in a sliding manner, so that three or more antennas can be installed conveniently, and a plurality of interference sources can be simulated.
The antenna support 6 is further provided with a driving mechanism for driving the antenna support 6 to slide along the corresponding circular arc track 5. The driving mechanism is a gear-rack transmission structure driven by a motor, specifically, a rack 51 is arranged on the arc track 5 along the length direction, a mounting plate 61 is arranged at the bottom of the antenna bracket 6, the motor 7 is fixed on the mounting plate 61, a driving gear 71 is connected to an output shaft of the motor 7, the driving gear 71 is meshed with the rack 51 on the corresponding arc track, the motor 7 is started, the driving gear 71 can be driven to rotate, and the rack 51 is fixed in position, so that the gear 71 rotates and moves along the length direction of the rack 51 at the same time of rotation, and further the corresponding antenna bracket 6 is driven to slide along the arc track 5.
Specifically, an inner chute 52 is arranged on the inner side of the circular arc track 5, an outer chute 53 is arranged on the outer side of the circular arc track 5, and both the inner chute 52 and the outer chute 53 are arranged coaxially with the circular arc track 5; the bottom of the mounting plate 61 of the antenna bracket 6 is provided with two rows of rollers 62, the two rows of rollers 62 are respectively arranged in the inner chute 52 and the outer chute 53 of the corresponding circular arc track 5 in a penetrating manner, and the rollers are matched with the inner chute and the outer chute, so that the antenna bracket 6 can slide more smoothly relative to the circular arc track 5.
In this embodiment, the radar simulation test system development software is developed based on LabVIEW, and provides functions such as scene generation, target simulation, radar parameter setting, data transmission, and the like. A user edits a typical target motion scene through a PXI VRTS client and downloads the typical target motion scene; the PXI VRTS calculates the related information of the simulation target according to the motion scene to generate the distance, the speed, the angle and the RCS control word of the motion target; and generating an echo signal through an antenna to simulate a target motion scene. In the testing process, the setting can be set according to a testing scene, the antenna bracket 6 is driven to accurately move through the motor 7, and the setting of a testing angle is completed. In practical tests, the test angle of the antenna can be kept unchanged in the test process, and the antenna can also move along the circular arc orbit in the test process to perform dynamic tests.
In this embodiment, the software part of the radar simulation test system is the prior art, and reference may be specifically made to relevant contents disclosed in CN 201710330502.4.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (10)
1. The utility model provides a microwave camera bellows for car high frequency radar test, includes the camera bellows body, is provided with the radar that awaits measuring in this camera bellows body, its characterized in that:
a fixed support is arranged inside the camera bellows body, and the top of the fixed support is provided with the radar to be detected;
the inside of the camera bellows body is also provided with at least two arc tracks, each arc track is connected with an antenna bracket in a sliding way, and the top of the antenna bracket is provided with an antenna;
the antenna support is further provided with a driving mechanism, and the driving mechanism is used for driving the antenna support to slide along the corresponding arc track.
2. The microwave camera for the high-frequency radar test of the automobile according to claim 1, wherein:
a rack is arranged on the arc track along the length direction of the arc track;
the driving mechanism comprises a motor arranged on the antenna support, a driving gear is connected to an output shaft of the motor, and the driving gear is meshed with the rack on the corresponding arc track.
3. The microwave camera for the high-frequency radar test of the automobile according to claim 2, wherein:
an inner sliding groove is formed in the inner side of the arc track, an outer sliding groove is formed in the outer side of the arc track, and the inner sliding groove and the outer sliding groove are both arranged coaxially with the arc track;
two rows of rollers are arranged at the bottom of the antenna bracket and respectively penetrate through the inner chute and the outer chute of the corresponding circular arc track.
4. A microwave chamber for high frequency radar testing of automobiles according to claim 3, characterized in that:
the bottom of the antenna bracket is provided with a mounting plate, the motor is connected to the mounting plate, and the bottom of the mounting plate is connected with the idler wheel.
5. The microwave camera for the high-frequency radar test of the automobile according to claim 2, wherein:
and the arc tracks are coaxially arranged.
6. The microwave camera for the high-frequency radar test of the automobile according to claim 1, wherein:
the camera bellows body is internally provided with two arc tracks.
7. The microwave camera for the high-frequency radar test of the automobile according to claim 1, wherein:
the heights of the radar to be measured and the antenna are consistent.
8. The microwave camera for the high-frequency radar test of the automobile according to claim 1, wherein:
the multifunctional dark box comprises a dark box body and is characterized by further comprising an instrument cabinet connected to the bottom of the dark box body, and universal wheels are arranged at the bottom of the instrument cabinet.
9. The microwave camera for the high-frequency radar test of the automobile according to claim 8, wherein:
a cabinet door is arranged on one side of the instrument cabinet, and a ventilation opening is formed in the side wall of the instrument cabinet.
10. The microwave camera for the high-frequency radar test of the automobile according to claim 1, wherein:
wave-absorbing materials are arranged on the inner wall of the camera bellows body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022153322.3U CN213338011U (en) | 2020-09-27 | 2020-09-27 | Microwave camera bellows for testing high-frequency radar of automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022153322.3U CN213338011U (en) | 2020-09-27 | 2020-09-27 | Microwave camera bellows for testing high-frequency radar of automobile |
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| CN213338011U true CN213338011U (en) | 2021-06-01 |
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| CN202022153322.3U Active CN213338011U (en) | 2020-09-27 | 2020-09-27 | Microwave camera bellows for testing high-frequency radar of automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115079112A (en) * | 2022-07-21 | 2022-09-20 | 中国航发四川燃气涡轮研究院 | Near-ground dynamic RCS test system and method for aircraft engine |
-
2020
- 2020-09-27 CN CN202022153322.3U patent/CN213338011U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115079112A (en) * | 2022-07-21 | 2022-09-20 | 中国航发四川燃气涡轮研究院 | Near-ground dynamic RCS test system and method for aircraft engine |
| CN115079112B (en) * | 2022-07-21 | 2022-12-20 | 中国航发四川燃气涡轮研究院 | Test system and test method for near-earth dynamic RCS (Radar Cross section) test of aero-engine |
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