Research And Development Of A DSP Based Monitoring System

With the development of the hydropower of China, the installed capacity of hydropower is increased in the power grid. The technology of control automation and management automation is more advanced as well. However, due to the limit of maintain system, maintain automation is still at a very low level. In the new situation, how to make good use of the divices of generate, this put forward a more stringent request to equipments maintenance. Therefore, condition-based maintenance about electricity device comes into being.Condition monitoring is the foundation of condition-based maintenance. On referring to the specialties of generate devices, this paper firstly analyzes its current situation. This topic unifies merits of DSP and USB2.0 to develop a monitoring system by using Texas Corporation's TMS320F2812 chip as digital signal processing core and Cypress Corporation's CY7C68001 chip as transmission foundation.First of all, a macro architecture is well designed based on the functional requirements and qualifications of the monitoring system. The system can implement multi-channel data collection, data processing with high transmission speed and high precision and will be conducive to wider use. Then, the design and implement of the hardware are described in detail, the design of DSP peripheral circuit, ADC module, the communication between DSP and PC based on USB, and also fully considers its'universal and easy-to-extend. At the last, the program on DSP is designed on the platform of CCS. In data dealing module, digital filtering method and FFT calculation are used. In software design, refers to the relevant companies'software development kits which reduce the difficulty of development and support software update easily.