CN112649693A - Multi-dimensional electromagnetic interference visual automatic detection system and method under high and low temperature environment - Google Patents
Multi-dimensional electromagnetic interference visual automatic detection system and method under high and low temperature environment Download PDFInfo
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- CN112649693A CN112649693A CN202110055689.8A CN202110055689A CN112649693A CN 112649693 A CN112649693 A CN 112649693A CN 202110055689 A CN202110055689 A CN 202110055689A CN 112649693 A CN112649693 A CN 112649693A
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- 239000013307 optical fiber Substances 0.000 claims abstract description 35
- 238000012360 testing method Methods 0.000 claims abstract description 33
- 239000000523 sample Substances 0.000 claims abstract description 28
- 238000006243 chemical reaction Methods 0.000 claims abstract description 19
- 239000011358 absorbing material Substances 0.000 claims abstract description 13
- 238000004891 communication Methods 0.000 claims description 12
- 230000005672 electromagnetic field Effects 0.000 claims description 9
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- 239000011810 insulating material Substances 0.000 claims description 8
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/001—Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
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Abstract
The invention relates to a multidimensional electromagnetic interference visual automatic detection system under high and low temperature environment, which comprises a high and low temperature box; the wave-absorbing material is arranged on the inner wall of the high-low temperature box; the automatic control console is arranged in the high-low temperature box; the first insulating bracket is arranged on the automatic control table; the second insulating bracket is arranged in the high-low temperature box; the field probe is arranged on the second insulating bracket; the tested device is arranged on the first insulating bracket; the optical fiber or the radio frequency wire is linked with the field probe; the control line is connected with the automatic control table; the visual monitoring and analyzing platform consists of a control host, a conversion module, auxiliary equipment and visual testing software and is connected with the control line and the optical fiber or radio frequency line. The invention also relates to a multi-dimensional electromagnetic interference visual automatic detection method under the high and low temperature environment, which can adapt to the electromagnetic interference visual detection under the high and low temperature environment and is convenient and controllable to test compared with the traditional laboratory test.
Description
Technical Field
The invention relates to the technical field of electronics, in particular to the technical field of electromagnetic compatibility detection, and specifically relates to a multidimensional electromagnetic interference visual automatic detection system and method under a high-temperature and low-temperature environment.
Background
The complex and intensive electronic equipment is integrated in a large security system, a special vehicle, a ship, a helicopter, a robot, a large data center and the like, and when the equipment executes tasks in specific severe environments such as various high and low temperatures, thunderstorm, rain, snow, strong electromagnetism and the like, how to diagnose that the electromagnetic compatibility running state of each system is good without faults is a bottleneck problem that the detection capability of the traditional laboratory can not be realized at present. Compared with the traditional laboratory test method, the multidimensional electromagnetic interference visual automatic detection system and method provided by the invention can adapt to the electromagnetic interference visual detection in high and low temperature environments, are convenient and controllable to test and greatly improve the test efficiency.
Disclosure of Invention
The invention aims to overcome the bottleneck problem that the detection capability of the traditional laboratory cannot be realized, and provides a multi-dimensional electromagnetic interference visual automatic detection system and method under high and low temperature environments, so that the detection is visual, the test is convenient and controllable, and the test efficiency is greatly improved.
In order to achieve the above purpose, the multidimensional electromagnetic interference visual automatic detection system under high and low temperature environment of the invention is as follows:
this visual automatic check out system of multidimension electromagnetic interference under high low temperature environment, its key feature is, the system include:
a high and low temperature chamber for providing a high and low temperature test environment and having a communication line penetration hole;
the wave-absorbing material is arranged on the inner wall of the high-low temperature box and used for absorbing a space electromagnetic field and eliminating the electromagnetic wave reflection of the wall of the high-low temperature box;
the automatic control rotary table is arranged in the high-low temperature box and used for controlling the tested equipment to rotate in all directions at 0-360 degrees;
the first insulating bracket is arranged on the automatic control table and used for placing the tested equipment;
the second insulating bracket is arranged in the high-low temperature box;
the field probe is arranged on the second insulating bracket and is used for detecting the electromagnetic field intensity emitted by the tested equipment;
the tested equipment is arranged on the first insulating support, can rotate within the range of 0-360 degrees through the automatic control console, comprises electronic components and emits electromagnetic wave interference signals during working;
the optical fiber or the radio frequency wire is linked with the field probe and is used for transmitting radio frequency signals;
the control line is connected with the automatic control platform to realize the automatic control function;
the thermal insulation material is used for protecting the outer layers of the optical fiber or the radio frequency wire and the control wire, so that the optical fiber or the radio frequency wire and the control wire are not influenced by high and low temperatures, and the signal transmission quality is ensured;
the conversion module is used for photoelectric or radio frequency signal conversion and is connected with the field probe through the optical fiber or the radio frequency line;
the visual monitoring and analyzing platform comprises a control host, a conversion module, auxiliary equipment and visual testing software, and is connected with the control line and the optical fiber or radio frequency line to realize automatic control of each equipment of the testing system.
Preferably, the inner wall of the high-low temperature box is provided with a wave-absorbing material, the frequency of the wave-absorbing material meets 30 MHz-110 GHz, a communication line through hole of the high-low temperature box body is used for meeting the internal and external links of an optical fiber, a radio frequency line and a control line, and the temperature in the high-low temperature box body is displayed on the visual monitoring and analyzing platform in real time through a signal line.
Preferably, the automatic control turntable is controlled and operated by the visual monitoring and analyzing platform, so that the rotation of the tested equipment at 0-360 degrees is controlled, and the tested equipment is ensured to radiate electromagnetic disturbance signals at 0-360 degrees in an omnidirectional manner.
Preferably, the field probe is connected with the control host of the visual monitoring and analyzing platform through the optical fiber or the radio frequency wire, the surface of the optical fiber or the radio frequency wire is covered with the heat insulating material, and the detection of the three-dimensional space field intensity of the radiation electromagnetic field of the tested equipment is realized under the environment of-40 ℃ to 70 ℃.
Preferably, the control host of the visual monitoring and analyzing platform is connected with the automatic control console and the high-low temperature box through the control line to control the operation of the automatic control turntable and the high-low temperature box, the conversion module is connected with the optical fiber or the radio frequency line to convert the photoelectric or radio frequency signal and transmit the converted electromagnetic interference signal detected by the field probe to the control host, and the auxiliary equipment comprises a monitoring camera, an adapter and a monitor and is used for providing monitoring, connecting and displaying functions for the test system.
The method for realizing the visual automatic detection of the multi-dimensional electromagnetic interference in the high and low temperature environment by using the system is mainly characterized by comprising the following steps:
(1) the tested equipment is placed on the first insulating support, and is electrified to normally work, the first insulating support is placed in the middle of an automatic control turntable in a high-low temperature box, a control line with a heat insulating material penetrates through a communication line of the high-low temperature box, and the automatic control turntable is connected with a control host of a visual monitoring and analyzing platform through the control line;
(2) calculating the distance between the second insulating bracket and the insulating bracket 1 according to the test requirements, placing the second insulating bracket, placing the field probe on the second insulating bracket, penetrating an optical fiber or a radio frequency wire with the insulating material through a communication line of the high-low temperature box, connecting the field probe with the conversion module through the optical fiber or the radio frequency wire, and starting the field probe;
(3) starting the visual monitoring and analyzing platform and the high-low temperature box with the wave-absorbing material, and setting the temperature in the range of-40 ℃ to 70 ℃;
(4) starting the automatic control turntable to drive the tested equipment to rotate clockwise or anticlockwise at 0-360 degrees;
(5) starting the conversion module and the auxiliary equipment, and monitoring the normal operation of the test system;
(6) the visual monitoring and analyzing platform controls all parts of the test system, and the field probe detects electromagnetic radiation of the tested equipment when rotating at 0-360 degrees and transmits the electromagnetic radiation to the visual monitoring and analyzing platform for control;
(7) the test system realizes automatic test of the electromagnetic radiation of the tested equipment with the frequency ranging from 30MHz to 110GHz in a three-dimensional space, processes test data through an algorithm and visually displays a test result.
Drawings
Fig. 1 is a structural diagram of a multi-dimensional electromagnetic interference visual automatic detection system in a high and low temperature environment according to the present invention.
Fig. 2 is a flow chart of the multidimensional electromagnetic interference visual automatic detection work under the high and low temperature environment of the invention.
Detailed Description
In order to more clearly describe the technical contents of the present invention, the following further description is made in conjunction with specific embodiments.
The invention relates to a multidimensional electromagnetic interference visual automatic detection system under high and low temperature environment, wherein the system comprises:
a high and low temperature box for providing a high and low temperature test environment and having communication perforations;
the wave-absorbing material is arranged on the inner wall of the high-low temperature box and used for absorbing a space electromagnetic field and eliminating the electromagnetic wave reflection of the wall of the high-low temperature box;
the automatic control rotary table is arranged in the high-low temperature box and used for controlling the tested equipment to rotate in all directions at 0-360 degrees;
the first insulating bracket is arranged on the automatic control table and used for placing the tested equipment;
the second insulating bracket is arranged in the high-low temperature box;
the field probe is arranged on the second insulating bracket and is used for detecting the electromagnetic field intensity emitted by the tested equipment;
the tested equipment is arranged on the first insulating support, can rotate within the range of 0-360 degrees through the automatic control console, comprises electronic components and emits electromagnetic wave interference signals during working;
the optical fiber or the radio frequency wire is linked with the field probe and is used for transmitting radio frequency signals;
the control line is connected with the automatic control platform to realize the automatic control function;
the thermal insulation material is used for protecting the outer layers of the optical fiber or the radio frequency wire and the control wire, so that the optical fiber or the radio frequency wire and the control wire are not influenced by high and low temperatures, and the signal transmission quality is ensured;
the conversion module is used for photoelectric or radio frequency signal conversion and is connected with the field probe through the optical fiber or the radio frequency line;
the visual monitoring and analyzing platform comprises a control host, a conversion module, auxiliary equipment and visual testing software, and is connected with the control line and the optical fiber or radio frequency line to realize automatic control of each equipment of the testing system.
As a preferred embodiment of the invention, the inner wall of the high-low temperature box is provided with a wave-absorbing material, the frequency of the wave-absorbing material meets 30 MHz-110 GHz, a communication line through hole of the box body of the high-low temperature box is used for meeting the internal and external links of an optical fiber, a radio frequency line and a control line, and the temperature in the high-low temperature box is displayed on the visual monitoring and analyzing platform in real time through a signal line.
As a preferred embodiment of the invention, the automatic control turntable is controlled and operated by the visual monitoring and analyzing platform, so that the rotation of the tested equipment at an angle of 0-360 degrees is controlled, and the tested equipment is ensured to radiate electromagnetic disturbance signals in an omnidirectional manner at an angle of 0-360 degrees.
As a preferred embodiment of the present invention, the field probe is connected to the control host of the visual monitoring and analyzing platform through the optical fiber or the radio frequency line, the surface of the optical fiber or the radio frequency line is covered with the thermal insulation material, and the detection of the three-dimensional field intensity of the radiation electromagnetic field of the device under test is realized in an environment of-40 ℃ to 70 ℃.
As a preferred embodiment of the present invention, the visual monitoring and analyzing platform comprises:
the control host is connected with the automatic control console and the high-low temperature box through control lines and is used for controlling the operation of the automatic control console and the high-low temperature box;
the conversion module is connected with the optical fiber or the radio frequency wire and is used for converting photoelectric or radio frequency signals;
the auxiliary equipment comprises a monitoring camera, an adapter, a monitor and the like and is used for providing monitoring, connecting and displaying functions for the test system;
the visual testing software consists of various algorithm software and visual detection software, and realizes algorithm processing and visual display of data.
In an embodiment of the present invention, the method for visual automatic detection of multi-dimensional electromagnetic interference in high and low temperature environments comprises the following steps:
(1) the tested equipment is placed on a first insulating support, the first insulating support is electrified to normally work, the first insulating support is placed in the middle position of an automatic control rotary table in a high-low temperature box, a control wire with a heat insulating material penetrates through a communication wire of the high-low temperature box to be perforated, and the automatic control rotary table is connected with a control host of a visual monitoring analysis platform through the control wire;
(2) calculating the distance between a second insulating support and a first insulating support according to the test requirements, placing the second insulating support, placing a field probe on the second insulating support, penetrating an optical fiber or a radio frequency wire with a heat insulating material through a communication perforation of a high-low temperature box, connecting the field probe with a conversion module through the optical fiber or the radio frequency wire, and starting the field probe;
(3) starting a visual monitoring and analyzing platform, starting a high-low temperature box with wave-absorbing materials, and setting the temperature in a range of-40 ℃ to 70 ℃;
(4) starting the automatic control turntable, so that the control turntable drives the tested equipment to rotate clockwise or anticlockwise at 0-360 degrees;
(5) starting the conversion module and the auxiliary module, and monitoring the normal operation of the test system;
(6) the field probe detects the electromagnetic radiation of the tested equipment in 0-360 degree rotation and transmits the electromagnetic radiation to the visual monitoring and analyzing platform for control;
(7) the system realizes automatic test of the electromagnetic radiation of the tested equipment with the frequency ranging from 30MHz to 110GHz in a three-dimensional space, processes the data through an algorithm and displays the test result in a visual mode.
The invention adopts the multidimensional electromagnetic interference visual automatic detection system and method under the high and low temperature environment, and compared with the traditional laboratory test, the system and method can adapt to the electromagnetic interference visual detection under the high and low temperature environment, and the test is convenient and controllable.
In this specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.
Claims (6)
1. A visual automatic detection system of multidimension electromagnetic interference under high low temperature environment, its characterized in that, the system include:
a high and low temperature chamber for providing a high and low temperature test environment and having a communication line penetration hole;
the wave-absorbing material is arranged on the inner wall of the high-low temperature box and used for absorbing a space electromagnetic field and eliminating the electromagnetic wave reflection of the wall of the high-low temperature box;
the automatic control rotary table is arranged in the high-low temperature box and used for controlling the tested equipment to rotate in all directions at 0-360 degrees;
the first insulating bracket is arranged on the automatic control table and used for placing the tested equipment;
the second insulating bracket is arranged in the high-low temperature box;
the field probe is arranged on the second insulating bracket and is used for detecting the electromagnetic field intensity emitted by the tested equipment;
the tested equipment is arranged on the first insulating bracket, comprises an electronic component and emits electromagnetic wave interference signals when working;
the optical fiber or the radio frequency wire is linked with the field probe and is used for transmitting radio frequency signals;
the control line is connected with the automatic control platform to realize the automatic control function;
the thermal insulation material is used for protecting the outer layers of the optical fiber or the radio frequency wire and the control wire, so that the optical fiber or the radio frequency wire and the control wire are not influenced by high and low temperatures, and the signal transmission quality is ensured;
the conversion module is used for photoelectric or radio frequency signal conversion and is connected with the field probe through the optical fiber or the radio frequency line;
the visual monitoring and analyzing platform comprises a control host, a conversion module, auxiliary equipment and visual testing software, and is connected with the control line and the optical fiber or radio frequency line to realize automatic control of each equipment of the testing system.
2. The visual automatic detection system of multidimensional electromagnetic interference under high and low temperature environment of claim 1, characterized in that the inner wall of the high and low temperature box is filled with wave absorbing material, the frequency of the wave absorbing material meets 30 MHz-110 GHz, the communication line through hole of the box body of the high and low temperature box is used for meeting the internal and external link of optical fiber, radio frequency line and control line, and the temperature in the high and low temperature box is displayed on the visual monitoring and analyzing platform in real time through signal lines.
3. The system for visual automatic detection of multi-dimensional electromagnetic interference under high and low temperature environments according to claim 1, wherein the automatic control turntable is controlled and operated by the visual monitoring and analyzing platform, so that rotation control of the tested equipment at 0-360 degrees is realized, and omnidirectional radiation electromagnetic disturbance signals of the tested equipment at 0-360 degrees are ensured.
4. The automatic multi-dimensional electromagnetic interference visual detection system under the high and low temperature environment according to claim 1, wherein the field probe is connected with the control host of the visual monitoring and analyzing platform through the optical fiber or the radio frequency wire, the surface of the optical fiber or the radio frequency wire is covered with the heat insulating material, and the detection of the three-dimensional space field intensity of the radiation electromagnetic field of the device to be detected is realized under the environment of-40 ℃ to 70 ℃.
5. The system according to claim 1, wherein the control host of the visual monitoring and analyzing platform is connected to the automatic console and the high and low temperature box through the control line to control the operation of the automatic control turntable and the high and low temperature box, the conversion module is connected to the optical fiber or the radio frequency line to convert the photoelectric or radio frequency signal and transmit the converted electromagnetic interference signal detected by the field probe to the control host, and the auxiliary device includes a monitoring camera, an adapter and a monitor for providing monitoring, connecting and displaying functions for the testing system.
6. The system of claim 1 is used for realizing the automatic visual detection method based on the multi-dimensional electromagnetic interference under the high and low temperature environment, and is characterized by comprising the following steps:
(1) the tested device is placed on the first insulating support and is electrified to normally work, the first insulating support is placed in the middle of an automatic control turntable in the high-low temperature box, a control line with a heat insulating material penetrates through a communication line of the high-low temperature box, and the automatic control turntable is connected with a control host of a visual monitoring and analyzing platform through the control line;
(2) calculating the distance between the second insulating bracket and the first insulating bracket according to the test requirements, placing the second insulating bracket, placing the field probe on the second insulating bracket, penetrating an optical fiber or a radio frequency wire with the heat insulating material through a communication wire of the high-low temperature box, connecting the field probe with the conversion module through the optical fiber or the radio frequency wire, and starting the field probe;
(3) starting the visual monitoring and analyzing platform and the high-low temperature box with the wave-absorbing material, and setting the temperature in the range of-40 ℃ to 70 ℃;
(4) starting the automatic control turntable to drive the tested equipment to rotate clockwise or anticlockwise at 0-360 degrees;
(5) starting the conversion module and the auxiliary equipment, and monitoring the normal operation of the test system;
(6) the visual monitoring and analyzing platform controls all parts of the test system, and the field probe detects electromagnetic radiation of the tested equipment when rotating at 0-360 degrees and transmits the electromagnetic radiation to the visual monitoring and analyzing platform for control;
(7) the system realizes the automatic test of the electromagnetic radiation of the tested equipment with the frequency ranging from 30MHz to 110GHz in a three-dimensional space, processes the test data through an algorithm and displays the test result in a visualized way.
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Cited By (2)
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| CN113884774A (en) * | 2021-08-30 | 2022-01-04 | 西安工程大学 | Device and method for continuously testing electromagnetic wave reflection performance of electromagnetic shielding clothes |
| 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 |
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