A Method and System for Predicting Hazardous Radiation Fields of Electronic Equipment Based on Measured Data

Abstract

The invention belongs to the technical field of system-level electromagnetic compatibility test and discloses an electronic equipment harmful radiation field prediction method and system based on actual measurement data. The system adopted by the method comprises a square cabin vehicle. One wave-absorbing material is vertically arranged right to the front surface of a vehicle head at the front portion of the square cabin vehicle, and one wave-absorbing material is slantly arranged on the upper portion of the vehicle head; and a shielding square cabin at the back portion of the square cabin vehicle is internally provided with an attenuator group having different frequency bands and a tester, wherein the attenuator group having different frequency bands is connected with a test antenna arranged on a two-dimensional turntable outside the shielding square cabin through a preset signal cable. The method and system solve the complex problem of harmful field prediction of electronic equipment in normal use, can accurately predict a harmful radiation field of the equipment at any place in the space, enable the test complexity to be simplified, and have very good popularization and application value.

Description

technical field [0001] The invention belongs to the technical field of system-level electromagnetic compatibility testing, and in particular relates to a method and system for predicting harmful radiation fields of electronic equipment based on measured data. By testing the electromagnetic radiation of electronic equipment in a certain direction, combined with the field strength pattern of the equipment transmitting antenna, Predict the hazard field intensity distribution of the equipment to the space where it is located. Background technique [0002] With the continuous advancement of science and technology, various types of frequency-using equipment are increasing, the number of various electromagnetic radiation sources is increasing exponentially, and the electromagnetic environment is becoming more and more complex. With the continuous development of electronic information systems towards systematization, integration, networking and integration, the electromagnetic envir...

AI Technical Summary

Problems solved by technology

The above-mentioned standards have requirements for the external electromagnetic radio frequency environment, but the test method for the specific hazard field is not clearly stipulated, and there is no way to predict the distribution of the hazard field caused by electronic information equipment in the space where it is in use.

If the 360° test is carried out around the device at different test distances and different frequencies, it will be laborious and difficult to achieve in reality

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