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Electromagnetic interference protection reinforcing method for X-ray thickness gauge controlled by single-chip microcomputer

A single-chip microcomputer control, electromagnetic protection technology, applied in the direction of instruments, measuring devices, using wave/particle radiation, etc., can solve the problems of poor electromagnetic suppression efficiency, narrow application range, poor stability of hardware protection equipment, etc., to overcome poor stability, suppress Effects of Electromagnetic Interference

Inactive Publication Date: 2020-10-27
启东仁旭电子科技有限公司
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Problems solved by technology

[0003] The object of the present invention is to provide a method for strengthening the electromagnetic protection software of an X-ray thickness gauge. and aperiodic EMI

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  • Electromagnetic interference protection reinforcing method for X-ray thickness gauge controlled by single-chip microcomputer

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Embodiment Construction

[0013] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0014] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings, as figure 1 Shown is a schematic flow chart of the electromagnetic protection reinforcement method of the single-chip microcomputer control system provided by the embodiment of the present invention, and the method includes:

[0015] Step A, start the watchdog program in the single-chip microcomputer control system, w...

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Abstract

The invention discloses an electromagnetic interference software protection reinforcing method for an X-ray thickness gauge controlled by a single-chip microcomputer, which comprises the following steps of: firstly, starting a watchdog program, executing an interrupt service subprogram ISR when a single-chip microcomputer control system is interfered by periodic or aperiodic signals, and calling asoftware trap program in the ISR; storing important variable information in the single-chip microcomputer control system in an external ROM, and then calling a reset kernel program; and after the system is restarted, judging whether the system is reset normally or not. Therefore, periodic and aperiodic electromagnetic interference can be effectively suppressed, and the X-ray thickness gauge system controlled by the single chip microcomputer adapts to various sudden interruption environments.

Description

technical field [0001] The invention relates to the technical field of electromagnetic protection, in particular to a protection and reinforcement method for electromagnetic interference of an X-ray thickness gauge controlled by a single-chip microcomputer. Background technique [0002] X-ray thickness gauges generally use a single-chip microcomputer as the control system. When there is a high-voltage flashover, due to the change of the instantaneous current, there will often be a large interference of the conduction electromagnetic pulse. This electromagnetic pulse interference will make the single-chip microcomputer unable to execute the established program, and in severe cases, it may cause the phenomenon such as the crash of the single chip microcomputer. Electromagnetic pulse interference can generally be divided into periodic and non-periodic interference in form. The traditional electromagnetic anti-interference protection method of single-chip control system genera...

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Application Information

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IPC IPC(8): G01B15/02
CPCG01B15/02
Inventor 冯德仁
Owner 启东仁旭电子科技有限公司
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