Noise immunity multichannel parameter monitoring system

Abstract

The invention relates to a noise immunity multichannel parameter monitoring system which comprises a test host, a monitoring host, a data acquisition device and at least one data acquisition card. A data acquisition card acquires a monitoring parameter and sends an acquired parameter signal to the monitoring host; the monitoring host receives the parameter signal and a test signal sent by the test host, judges whether the monitoring parameter exceeds an early warning limitative range and sends a monitoring parameter abnormal alarm signal; the data acquisition device receives the monitoring parameter abnormal alarm signal and forwards the alarm signal to the test host; the test host sets an interference source frequency and sends a test signal to the monitoring test; and the test host receives the alarm signal and regulates the intensity of the test signal according to the alarm signal. The noise immunity multichannel parameter monitoring system disclosed by the invention adopts few monitoring instruments, occupies a small area, is saving in manpower resources, has good accuracy and high efficiency, can be used for carrying out real-time recording of monitored data and has good repeatability.

Description

technical field [0001] The invention relates to an electrical signal monitoring system, in particular to a multi-channel electrical parameter monitoring system for immunity testing. Background technique [0002] With the increasing development of the electronic technology of auto parts, more and more electronic parts (such as ignition coils, lights, indicator lights, antenna lifters, GPS global positioning systems, etc.) Advanced electronic components implement extremely diverse functions inside the car (such as driving safety functions, indicating functions, anti-theft functions, control functions during driving, driver comfort adjustment functions and entertainment functions, etc.). However, so many electronic components are used in automobiles, and interference signals will be generated between the components, which will lead to more and more prominent problems of Electromagnetic Compatibility (EMC) between electronic components. The anti-interference ability also puts f...

AI Technical Summary

Problems solved by technology

[0003] The existing technology usually uses oscilloscopes, multimeters or other data acquisition and recording equipment to monitor and record parameters, which requires more equipment, manpower and resources, and the cost is high and the traceability of the monitored data cannot be guaranteed, coupled with inevitable human factors Mistakes will also cause the accuracy of the test to decrease, and the repeatability is not good

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