A kind of electromagnetic protection reinforcement method of dsp control system
A control system and electromagnetic protection technology, applied in general control systems, control/regulation systems, testing/monitoring control systems, etc., can solve the problems of poor electromagnetic suppression efficiency, narrow application range, poor stability of hardware protection equipment, etc. Periodic and aperiodic electromagnetic interference, overcoming the effect of poor stability
Active Publication Date: 2019-02-01
UNIV OF SCI & TECH OF CHINA
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[0004] The purpose of the present invention is to provide a method for strengthening electromagnetic protection of a DSP control system, which overcomes the shortcomings of poor stability, narrow application range, and poor electromagnetic suppression efficiency of hardware protection equipment in the prior art, and can effectively suppress periodicity and non-periodic electromagnetic interference
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[0019] The following describes the technical solutions in the embodiments of the present invention clearly and completely with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0020] The embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings, such as figure 1 Shown is a schematic flowchart of an electromagnetic protection reinforcement method for a DSP control system provided by an embodiment of the present invention, and the method includes:
[0021] Step A. The DSP control system samples the expected received signal and expands the sampling re...
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The invention discloses an electromagnetic protection strengthening method of a DSP control system. The method comprises a step of sampling a signal and carrying out frequency domain expansion on a sampling result, a step of extracting of square root of each frequency spectrum expanded by a frequency domain, a step of multiplying each frequency spectrum by a constant, a step of setting a filter parameter and filtering a periodic interference signal, a step of starting a watchdog program, executing an interrupt service routine ISR and calling a software pit program in the ISR when the DSP control system is interfered by a non-periodic signal, a step of storing the important variable information in the DSP control system into an external ROM and then calling a reset kernel program, and a step of judging whether system reset is normal or not after the system is restarted. The periodic and non-periodic electromagnetic interference can be effectively inhibited, and thus a control system for simulator of electromagnetic pulses of high pulse repetition frequency(PRF) can be adapted to various burst interruption environments.
Description
Technical field [0001] The invention relates to the technical field of electromagnetic protection, in particular to a method for strengthening the electromagnetic protection of a DSP control system. Background technique [0002] Electromagnetic pulse interference can generally be divided into periodic and non-periodic interference in form. The traditional digital signal processing DSP control system electromagnetic anti-interference protection method generally adopts hardware protection. The so-called hardware protection means adopting hardware shielding and changing the circuit structure to achieve anti-interference. Interference ability, which can effectively suppress the periodic conduction interference and space radiation interference of electromagnetic pulses, is the main method of electromagnetic protection. However, the cost of hardware protection measures is high, and the structure and process are complex. At the same time, although the general DSP control system shieldin...
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IPC IPC(8): G05B23/02
CPCG05B23/0289G05B2219/23218
Inventor 梁昊冯德仁
Owner UNIV OF SCI & TECH OF CHINA