CN215813065U - Electromagnetic anti-interference performance test system for image parameters of automobile camera - Google Patents
Electromagnetic anti-interference performance test system for image parameters of automobile camera Download PDFInfo
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- CN215813065U CN215813065U CN202120834629.1U CN202120834629U CN215813065U CN 215813065 U CN215813065 U CN 215813065U CN 202120834629 U CN202120834629 U CN 202120834629U CN 215813065 U CN215813065 U CN 215813065U
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Abstract
The utility model discloses an electromagnetic interference rejection performance testing system for image parameters of an automobile camera, and relates to the technical field of testing devices for cameras in automobiles. This electromagnetic interference immunity capability test system of camera image parameter for car, through the setting of colour chip and test chart card, make this electromagnetic interference immunity capability test system of camera image parameter for car possess the effect of being convenient for change different colour chips, thereby played the effect of carrying out different capability test to the camera for car, set up through the cooperation of test chart card and camera for car, can carry out a test to it through the test chart card earlier at the in-process that uses, later carry out the radiated interference test again, and then played the effect that improves the data precision, the purpose that has reduced the deviation rate has been reached.
Description
Technical Field
The utility model relates to the technical field of in-vehicle camera testing devices, in particular to an electromagnetic interference rejection performance testing system for image parameters of an automobile camera.
Background
The reversing camera is divided into a wired mode and a wireless mode, the wired mode is simple and reliable, wiring is needed in a vehicle body, the wireless mode does not need wiring in the vehicle body, the installation is simple, and a wireless receiving module needs to be added. Because the receiving effect of the wireless receiving module is not ideal, the backing camera generally adopts a wired mode.
When the image parameters of the existing automobile camera are tested, the image parameters are often tested once, the deviation is large, the operation is complex, and the detection can be completed for a long time. Therefore, the existing test system for the image parameters of the automobile camera has the defects of large deviation, complex operation and the like.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Aiming at the defects of the prior art, the utility model provides an electromagnetic interference rejection performance testing system for image parameters of an automobile camera, which solves the problems in the background technology.
(II) technical scheme
In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides an electromagnetism immunity performance test system of camera image parameter for car, includes the semianechoic chamber, lateral surface one side of semianechoic chamber is provided with video analysis equipment, video analysis equipment's output is connected with photoelectric conversion module through the wire electricity, the inside of semianechoic chamber has from left to right set gradually test chart card, the special light source of semianechoic chamber, camera and test antenna for car, the lower fixed surface of camera for car is connected with the test bench, photoelectric conversion module's input is passed through the wire and is connected with the output electricity of camera for car, photoelectric conversion module's output is passed through the wire and is connected with video analysis equipment's input electricity, the input of test antenna is connected with the radio frequency signal source through the wire electricity.
Optionally, a sliding plate is fixedly connected to the lower surface of the test chart card, a sliding rail is slidably connected to one side surface of the sliding plate, the lower surface of the sliding rail is fixedly connected to the inner bottom wall of the semi-anechoic chamber, and one side of the inner bottom wall of the semi-anechoic chamber is fixedly connected to a first-stage electric telescopic rod through a vertical plate.
Optionally, the movable end face of the first-stage electric telescopic rod is fixedly connected with the sliding plate, the center point of the area where the image of the graphic card is located on an incident optical axis of the automobile camera by testing the position of the graphic card device, and the lower surface of the automobile camera is fixedly connected with the test support.
Optionally, a supporting device is arranged below the test support, the angle of the supporting device enables the incident optical axis of the automobile camera to be at the central point of the area where the test chart image is located, the incident optical axis of the automobile camera is provided with a test arrangement requirement meeting the radiation immunity, and the ground clearance of the automobile camera is 1.00 ± 0.05 m.
Optionally, the supporting device comprises a first base, a plurality of first positioning holes arranged at the lower end of the second base, and a first vertical rod arranged at the upper end of the first base and telescopic, wherein a first cross rod is connected to the upper end of the first vertical rod, and a camera fixing seat for an automobile is arranged on the first cross rod along the length direction.
Optionally, the output end of the radio frequency signal source is electrically connected with a power amplifier through a wire, the output end of the power amplifier is electrically connected with the input end of the test antenna through a wire, and one side surface of the test graphic card is detachably connected with a color card.
(III) advantageous effects
The utility model provides an electromagnetic interference rejection performance testing system for image parameters of an automobile camera, which has the following beneficial effects:
1. this electromagnetic interference immunity capability test system of camera image parameter for car, through the setting of colour chip and test chart card, make this electromagnetic interference immunity capability test system of camera image parameter for car possess the effect of being convenient for change different colour chips, thereby played the effect of carrying out different capability test to the camera for car, set up through the cooperation of test chart card and camera for car, can carry out a test to it through the test chart card earlier at the in-process that uses, later carry out the radiated interference test again, and then played the effect that improves the data precision, the purpose that has reduced the deviation rate has been reached.
2. This electromagnetic interference rejection capability test system of camera image parameter for car through the cooperation setting of video analysis equipment, photoelectric conversion module, test graphic card, the special light source of semi-anechoic chamber, camera and test antenna for the car, makes this electromagnetic interference rejection capability test system of camera image parameter for car possess convenient, swift effect to play the efficient effect, reached easy operation, the simple structure purpose.
Drawings
FIG. 1 is a schematic structural plan view of the present invention.
In the figure: 1. a semi-anechoic chamber; 2. a video analysis device; 3. a photoelectric conversion module; 4. testing the graphic card; 5. a special light source for a semi-anechoic chamber; 6. a camera for an automobile; 7. testing the antenna; 8. a radio frequency signal source; 9. a power amplifier; 10. and (4) color cards.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1, the present invention provides a technical solution: an electromagnetic interference resistance performance test system of an automobile camera image parameter comprises a semi-anechoic chamber 1, a video analysis device 2 is arranged on one side of the outer side surface of the semi-anechoic chamber 1, the output end of the video analysis device 2 is electrically connected with a photoelectric conversion module 3 through a lead, a test chart card 4, a special light source 5 for the semi-anechoic chamber, an automobile camera 6 and a test antenna 7 are sequentially arranged in the semi-anechoic chamber 1 from left to right, a test bench is fixedly connected with the lower surface of the automobile camera 6, the input end of the photoelectric conversion module 3 is electrically connected with the output end of the automobile camera 6 through a lead, the output end of the photoelectric conversion module 3 is electrically connected with the input end of the video analysis device 2 through a lead, the input end of the test antenna 7 is electrically connected with a radio frequency signal source 8 through a lead, and a sliding plate is fixedly connected with the lower surface of the test chart card 4, one side of the sliding plate is connected with a sliding rail in a sliding way, the lower surface of the sliding rail is fixedly connected with the inner bottom wall of the semi-anechoic chamber 1, one side of the inner bottom wall of the semi-anechoic chamber 1 is fixedly connected with a first-stage electric telescopic rod through a vertical plate, the movable end face of the first-stage electric telescopic rod is fixedly connected with the sliding plate, a test chart card 4 is positioned on the device to ensure that the central point of the area of the chart card image is positioned on the incident optical axis of the automobile camera 6, the lower surface of the automobile camera 6 is fixedly connected with a test bracket, a supporting device is arranged below the test bracket, the angle of the supporting device ensures that the incident optical axis of the automobile camera 6 is positioned at the central point of the area of the chart card 4 image, the incident optical axis of the automobile camera 6 is provided with a test arrangement requirement meeting the radiation interference resistance, the height of the automobile camera 6 from the ground is 1.00 +/-0.05 m, and the supporting device comprises a first base, a plurality of first positioning holes, a second base and a second base, wherein the second positioning hole is arranged at the lower end of the second base, and a second positioning hole is arranged at the position corresponding to the second positioning hole, Locate the first montant of first base upper end telescopic, first montant upper end is connected with first horizontal pole, and first horizontal pole is equipped with a camera fixing base for the car along length direction, and radio frequency signal source 8's output is connected with power amplifier 9 through the wire electricity, and power amplifier 9's output passes through the wire to be connected with test antenna 7's input electricity, and a side of test chart card 4 can be dismantled and be connected with colour chip 10.
When the test bench is used, a camera 6 for an automobile and a test graphic card 4 to be tested are placed on the test bench in the semi-anechoic chamber, the surface illumination of the test graphic card 4 is firstly adjusted, image acquisition is carried out for one time, and the image acquisition, observation and storage are carried out through the video analysis equipment 2. Then, the radiation interference test is carried out under the same condition, and the image acquisition, observation and storage are carried out again. The influence of the electromagnetic radiation interference signal on the performance of the effective pixel, resolution, frame rate, color reduction and the like of the automobile camera 6 is analyzed through the quantitative data obtained by the video analysis equipment 2.
The working principle and the beneficial effects of the utility model are as follows: the electromagnetic anti-interference performance testing system for the image parameters of the automobile camera has the advantages that the electromagnetic anti-interference performance testing system for the image parameters of the automobile camera has the effect of facilitating replacement of different color cards 10 through the arrangement of the color cards 10 and the test chart cards 4, so that different performance tests can be performed on the automobile camera 6, the test chart cards 4 and the automobile camera 6 are arranged in a matched mode in the using process, the automobile camera can be tested once through the test chart cards 4 firstly in the using process, then the radiation interference test is performed, the data accuracy is further improved, the purpose of reducing deviation rate is achieved, and the electromagnetic anti-interference performance testing system for the image parameters of the automobile camera has the advantages of convenience and convenience in use through the matched arrangement of the video analysis equipment 2, the photoelectric conversion module 3, the test chart cards 4, the special light source 5 for the semi-anechoic chamber, the automobile camera 6 and the test antenna 7, The effect of quickness is achieved, so that the high-efficiency effect is achieved, and the purposes of simple operation and simple structure are achieved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (6)
1. The utility model provides an electromagnetic disturbance rejection capability test system of camera image parameter for car, includes half anechoic chamber (1), its characterized in that: lateral surface one side of half anechoic chamber (1) is provided with video analysis equipment (2), the output of video analysis equipment (2) is connected with photoelectric conversion module (3) through the wire electricity, the inside of half anechoic chamber (1) has from left to right set gradually test chart card (4), special light source of half anechoic chamber (5), camera (6) and test antenna (7) for the car, the lower fixed surface of camera (6) for the car is connected with the test bench, the input of photoelectric conversion module (3) is connected with the output electricity of camera (6) for the car through the wire, the output of photoelectric conversion module (3) is connected with the input electricity of video analysis equipment (2) through the wire, the input of test antenna (7) is connected with radio frequency signal source (8) through the wire electricity.
2. The electromagnetic immunity performance test system for the image parameters of the camera for the automobile as claimed in claim 1, characterized in that: the lower surface of the test chart card (4) is fixedly connected with a sliding plate, one side face of the sliding plate is connected with a sliding rail in a sliding mode, the lower surface of the sliding rail is fixedly connected with the inner bottom wall of the semi-anechoic chamber (1), and one side of the inner bottom wall of the semi-anechoic chamber (1) is fixedly connected with a first-level electric telescopic rod through a vertical plate.
3. The electromagnetic immunity performance test system for the image parameters of the camera for the automobile as claimed in claim 2, characterized in that: the movable end face of the primary electric telescopic rod is fixedly connected with the sliding plate, the central point of the area where the image of the graphic card is located on an incident optical axis of the automobile camera (6) by testing the position of the graphic card (4), and the lower surface of the automobile camera (6) is fixedly connected with a testing support.
4. The electromagnetic immunity performance test system of the image parameters of the camera for the automobile according to claim 3, characterized in that: the testing device is characterized in that a supporting device is arranged below the testing support, the angle of the supporting device enables the incident optical axis of the automobile camera (6) to be at the central point of the area where the image of the testing chart (4) is located, the incident optical axis of the automobile camera (6) is provided with a test arrangement requirement meeting the radiation immunity, and the ground clearance of the automobile camera (6) is 1.00 +/-0.05 m.
5. The electromagnetic immunity performance test system of the image parameters of the camera for the automobile according to claim 4, characterized in that: the supporting device comprises a first base, a plurality of first positioning holes formed in the lower end of the second base, and a first vertical rod arranged on the upper end of the first base and capable of stretching, wherein a first transverse rod is connected to the upper end of the first vertical rod, and a camera fixing seat for an automobile is arranged on the first transverse rod along the length direction.
6. The electromagnetic immunity performance test system for the image parameters of the camera for the automobile as claimed in claim 1, characterized in that: the output end of the radio frequency signal source (8) is electrically connected with a power amplifier (9) through a lead, the output end of the power amplifier (9) is electrically connected with the input end of the test antenna (7) through a lead, and one side surface of the test chart card (4) is detachably connected with a color chart (10).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120834629.1U CN215813065U (en) | 2021-04-22 | 2021-04-22 | Electromagnetic anti-interference performance test system for image parameters of automobile camera |
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| CN202120834629.1U CN215813065U (en) | 2021-04-22 | 2021-04-22 | Electromagnetic anti-interference performance test system for image parameters of automobile camera |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114740291A (en) * | 2022-03-25 | 2022-07-12 | 西安苏试广博环境可靠性实验室有限公司 | Electromagnetic interference test visualization system for electromagnetic compatibility anechoic chamber |
| CN116260962A (en) * | 2023-01-29 | 2023-06-13 | 电信科学技术仪表研究所有限公司 | Radiation-resistant detection device and method for monitoring camera sensor |
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2021
- 2021-04-22 CN CN202120834629.1U patent/CN215813065U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114740291A (en) * | 2022-03-25 | 2022-07-12 | 西安苏试广博环境可靠性实验室有限公司 | Electromagnetic interference test visualization system for electromagnetic compatibility anechoic chamber |
| CN116260962A (en) * | 2023-01-29 | 2023-06-13 | 电信科学技术仪表研究所有限公司 | Radiation-resistant detection device and method for monitoring camera sensor |
| CN116260962B (en) * | 2023-01-29 | 2024-04-26 | 电信科学技术仪表研究所有限公司 | Radiation-resistant detection device and method for monitoring camera sensor |
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