CN216955068U - Gravel impact test machine for millimeter wave radar and reversing radar sensor - Google Patents
Gravel impact test machine for millimeter wave radar and reversing radar sensor Download PDFInfo
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- CN216955068U CN216955068U CN202220271038.2U CN202220271038U CN216955068U CN 216955068 U CN216955068 U CN 216955068U CN 202220271038 U CN202220271038 U CN 202220271038U CN 216955068 U CN216955068 U CN 216955068U
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Abstract
The utility model relates to the technical field of impact tests, and discloses a gravel impact test tester for a millimeter wave radar and a reversing radar sensor, which comprises: the pipeline is provided with a material port; the air pressure adjusting module is connected with the inlet of the pipeline and used for adjusting the air inlet pressure to change the air flow speed in the pipeline; the speed measuring module is used for measuring and calculating the speed of the gravel in the pipeline under the action of the air pressure adjusting module; the fixture is used for fixing the test sample piece; the gravel impact test tester for the millimeter wave radar and the reversing radar sensor is low in manufacturing cost and simple and convenient to use, redundant operation is not needed, only the gear is needed to be adjusted to control airflow in the test process, the gravel speed is read and well recorded, and the equipment is calibrated at regular intervals; speed measurement can be achieved.
Description
Technical Field
The utility model relates to the technical field of impact tests, in particular to a gravel impact test tester for a millimeter wave radar and reversing radar sensor.
Background
The principle of the millimeter wave radar for detecting the direction is that narrow beams are used, and the direction cannot be accurately judged because a target appears in the beams in a large range, the method is that the characteristic of the length of the millimeter wave radar wave is utilized, a large number of array antennas are used for forming the narrow beams, the vehicle-mounted radar is 3-5 degrees, and the direction precision is effectively improved.
The millimeter wave radar detects the presence, distance, speed, and orientation of a target by emitting an electromagnetic wave and by detecting an echo. Because the electromagnetic wave emitted by the millimeter wave radar is a cone-shaped wave beam, the millimeter wave radar has the advantage of reliability, and because the reflecting surface is large, the millimeter wave radar has the defect of low resolution.
The application of the millimeter wave radar on ADAS is roughly divided into a forward radar and a backward radar, wherein the forward radar comprises an adaptive cruise ACC, an automatic emergency brake AEB, a forward collision early warning FCW, an active lane control ALC and a pedestrian detection system PDS, and the backward radar comprises a blind spot monitoring BSD, a lane change assisting LCA, a backward collision early warning RCW, a door opening warning DOW, a reverse collision early warning RCW and the like.
The reversing radar is a safety auxiliary device for parking or reversing a car, can inform a driver of the condition of surrounding obstacles through sound or more visual display, solves the trouble caused by front-back and left-right visiting when the driver parks, backs and starts the car, and helps the driver to eliminate the defects of visual dead angles and blurred vision.
When backing a car, the radar uses ultrasonic principle, the probe on the bumper of the car tail sends ultrasonic to impact the barrier and reflects the sound wave, calculates the actual distance between the car body and the barrier, and then prompts the distance to the driver, so that the car can be parked or backed more easily and safely.
The existing complete stone crushing impact equipment has high design cost, various types of materials for manufacturing the equipment, more test auxiliary equipment and high test cost; present large-scale rubble impact device operating procedure is more, and present most rubble impact device can't increase the function of measuring impact grit speed, because the pipeline that sprays the grit is non-transparent, and the grit through the pipeline is more in addition, can't accurate measurement, can't use even.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to overcoming the above-mentioned deficiencies and providing a solution to at least one of the problems set forth above.
The utility model provides a millimeter wave radar and radar sensor gravel impact test machine that backs a car, it includes:
the pipeline is provided with a material port;
the air pressure adjusting module is connected with the inlet of the pipeline and used for adjusting the air inlet pressure to change the air flow speed in the pipeline;
the speed measuring module is used for measuring and calculating the speed of the gravel in the pipeline under the action of the air pressure adjusting module;
the fixture is used for fixing the test sample piece;
preferably, the speed measuring module includes:
a speed measurement sensor mounted on the pipeline;
and a speedometer electrically connected with the speed measuring sensor.
Preferably, the outlet of the conduit is aligned with the centre of the test sample.
Preferably, the outlet of the conduit is spaced from the test sample.
Preferably, the air pressure adjusting module comprises an air pressure adjusting valve and a pressure gauge which are connected with the pipeline.
Preferably, the pipeline is made of transparent materials.
Compared with the prior art, the utility model has the beneficial effects that: the gravel impact test tester for the millimeter wave radar and the reversing radar sensor is low in manufacturing cost and simple and convenient to use, redundant operation is not needed, only the gear is needed to be adjusted to control airflow in the test process, the gravel speed is read and well recorded, and the equipment is calibrated at regular intervals; speed measurement can be achieved.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
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 description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention.
In the figure: a pipeline 1; a material port 2; an air pressure regulating valve 3; a pressure gauge 4; a jig 5; a speed measurement sensor 6; a speedometer 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. 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 invention.
Referring to fig. 1, in an embodiment of the present invention, a sand impact test testing machine for millimeter wave radar and reverse sensor includes:
the pipeline 1 is provided with a material port 2; gravel enters from the material port 2, the pipeline 1 is made of transparent materials, and the pipeline 1 has good pressure resistance, crushing resistance and good anti-static capacity; furthermore, a gravel screening device can be arranged at the material opening to test different test results of the gravel with different sizes on the test sample piece;
the air pressure adjusting module is connected with the inlet of the pipeline 1 and used for adjusting the air inlet pressure to change the air flow speed in the pipeline 1;
the speed measuring module is used for measuring and calculating the speed of the gravel in the pipeline 1 under the action of the air pressure adjusting module;
the clamp 5 is used for fixing the test sample piece 8; for example, the clamp can adopt a spring type clamp, a claw type clamp, a manual type clamp or an automatic type clamp;
the speed measurement module includes: a speed measuring sensor 6 mounted on the pipe 1, for example, in the middle of the surface of the pipe 1; a speedometer 7 electrically connected to the speed measurement sensor 6; the specification of the speedometer 7 requires that the measurement range is more than or equal to 0-200KM/h, and the resolution is more than or equal to 1 KM/h; the distance between the speed measuring sensor 6 and the test sample piece is 230mm, and corresponding adjustment can be carried out according to different test sample pieces;
the outlet of the pipeline 1 is aligned with the center of the test sample piece; the outlet of the pipe 1 is spaced from, i.e. at a distance from, the test sample.
The air pressure adjusting module comprises an air pressure adjusting valve 3 and a pressure gauge 4 which are connected with the pipeline 1; the air pressure regulating valve 3 and the pressure gauge 4 can be separately arranged, an integrated air pressure regulating valve 3 with the pressure gauge 4 can also be adopted, and an air source is also arranged and connected with the pipeline 1; furthermore, a gas filtering device can be arranged at the joint of the gas source and the pipeline 1 so as to reduce the influence of impurities in the gas on the test result; the pressure gauge 4 can adopt a physical pointer type pressure gauge or an electronic display type pressure gauge; the air pressure regulating valve 3 can adopt a manual knob-adjustable air pressure regulating valve and also can adopt an electronic automatic control type air pressure regulating valve;
the air supply carries out conveying gas for pipeline 1, detect the atmospheric pressure size through manometer 4 and adopt the atmospheric pressure size of air pressure regulating valve in to pipeline 1 to adjust, the grit gets into pipeline 1 from material mouth 2, gaseous air current in the pipeline 1 makes the grit that gets into pipeline 1 to the direction motion of test sample spare 8, last grit from the export departure of pipeline to the test sample spare 8 on, speed measurement sensor 6 measures the grit speed in the pipeline, its measuring result feeds back to speedometer 7 departments.
Keep off position conversion module, the trachea of constant pressure, the governing valve of regulation atmospheric pressure, keep off position conversion module essence is an atmospheric pressure regulation module, has set up three kinds of differences and has kept off the position, changes the air velocity in the pipeline 1 through adjusting inlet pressure to reach three kinds of differences and keep off the position:
gear 1: 0.01 to 0.05J,
gear 2: 0.05 to 0.20J,
gear 3: is > 0.20J.
The speed measuring module can accurately calculate the speed of the gravel in the pipeline 1 under the action of the air pipe, is an AC6000BT BB bomb velocimeter with high texture and high accuracy, and uses a 128x128pixel OLED as a display interface to provide detailed information of test data; and determining whether the kinetic energy of the gravel is in a required range according to a kinetic energy formula Ek ═ (1/2) mv ^2, wherein m is the mass of the gravel, and v is the speed of the gravel when passing through the speed measuring module.
And the fixture 5 is used for fixedly mounting a test sample piece to ensure that the pipeline 1 and the test sample piece are in a horizontal line, and fixedly mounting the speedometer 7 and the air pressure regulating valve 3 to ensure the integrity of the test system.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (6)
1. The utility model provides a millimeter wave radar and radar sensor gravel impact test machine that backs a car, its characterized in that, it includes:
the pipeline is provided with a material port;
the air pressure adjusting module is connected with the inlet of the pipeline and used for adjusting the air inlet pressure to change the air flow speed in the pipeline;
the speed measuring module is used for measuring and calculating the speed of the gravel in the pipeline under the action of the air pressure adjusting module;
and the clamp is used for fixing the test sample piece.
2. The millimeter wave radar and reversing radar sensor gravel impact test testing machine of claim 1, wherein the speed measurement module comprises:
a speed measurement sensor mounted on the pipeline;
and the speedometer is electrically connected with the speed measuring sensor.
3. The millimeter wave radar and reversing radar sensor grit blast test machine of claim 1, wherein the outlet of said tube is aligned with the center of the test piece.
4. The millimeter wave radar and reversing radar sensor gravel impact test testing machine of claim 1, wherein a space is provided between the outlet of the pipeline and the test sample.
5. The millimeter wave radar and reversing radar sensor gravel impact test machine according to claim 1, wherein the air pressure adjusting module comprises an air pressure adjusting valve and a pressure gauge connected with the pipeline.
6. The millimeter wave radar and reversing radar sensor gravel impact test testing machine of claim 1, wherein the pipeline is made of a transparent material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220271038.2U CN216955068U (en) | 2022-02-10 | 2022-02-10 | Gravel impact test machine for millimeter wave radar and reversing radar sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220271038.2U CN216955068U (en) | 2022-02-10 | 2022-02-10 | Gravel impact test machine for millimeter wave radar and reversing radar sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216955068U true CN216955068U (en) | 2022-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220271038.2U Active CN216955068U (en) | 2022-02-10 | 2022-02-10 | Gravel impact test machine for millimeter wave radar and reversing radar sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216955068U (en) |
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2022
- 2022-02-10 CN CN202220271038.2U patent/CN216955068U/en active Active
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