A manipulator test system and test method for electromagnetic interference environment

Abstract

The invention relates to a manipulator test system applicable to an electromagnetic interference environment. The system comprises a control part arranged outside an electromagnetic interference environment, a monitoring part connected with the control part, and an execution part connected with the control part through a pneumatic structure and arranged inside the electromagnetic interference environment. The monitoring part is connected with a tested product arranged on the execution part through an optical coupler. The control part includes a controller with a signal input end and a signal output end, and a pneumatic motor drive part and a key cylinder drive part which are connected with the signal output end of the controller. The execution part includes a pneumatic motor module connected with the pneumatic motor drive part and a key cylinder connected with the key cylinder drive part. By replacing the traditional electric structure with the pneumatic structure, electromagnetic interference is avoided effectively. The monitoring part inputs a 'digital square wave' through the control part and inputs a 'digital signal' through the tested product, so timing synchronization of the monitoring part, the control part and the tested product is realized. Moreover, the monitoring part can identify the test result automatically, and the test efficiency is improved.

Description

technical field [0001] The invention relates to a test system and a test method, in particular to a manipulator test system and a test method dedicated to electromagnetic interference environments. Background technique [0002] With the development of technology, major automobile manufacturers pay more and more attention to the performance of electronic products against electromagnetic interference in the environment of strong electromagnetic radiation interference; when electronic products are subjected to severe external electromagnetic interference, it often leads to abnormal product functions and damage ; In the slightest, it will affect the sensory experience of the occupants in the vehicle, and in severe cases, it will affect the personal safety of the occupants in the vehicle; [0003] Therefore, major automobile manufacturers have proposed strict verification and testing of "electromagnetic compatibility" performance requirements for in-vehicle electronic products; ...

AI Technical Summary

Problems solved by technology

[0002] With the development of technology, major automobile manufacturers pay more and more attention to the performance of electronic products against electromagnetic interference in the environment of strong electromagnetic radiation interference; when electronic products are subjected to severe external electromagnetic interference, it often leads to abnormal product functions and damage ; In the slightest, it will affect the sensory experience of the occupants in the vehicle, and in severe cases, it will affect the personal safety of the occupants in the vehicle;

[0003] Therefore, major automobile manufacturers have proposed strict verification and testing of "electromagnetic compatibility" performance requirements for in-vehicle electronic products; It is easy to realize monitoring in the electromagnetic immunity test, but the "tactile sense" is difficult to realize in the electromagnetic immunity test; the reason is that people cannot stay in the closed shielding room during the test (strong electromagnetic interference will cause serious damage to personnel), The purpose of verifying the performance of electronic products against radiation interference can only be achieved by using "manipulators" to replace human-operated panel buttons and knobs during the test process.

[0004] However, under the electromagnetic compatibility test, the electromagnetic interference is strong, and the control system of the electric manipulator is easily disturbed by the external environment during the transmission of the action command, which leads to the failure of the manipulator action command.

In addition, the tested samples are strictly prohibited from contacting external third-party electrical equipment, otherwise the objectivity of the electromagnetic compatibility test will be affected, and the motor or motor of the electric manipulator needs to be controlled by a digital level signal, making it easy to test in this test environment. disturbed

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