For solid-liquid two phase softness abrasive flow embedded real-time monitoring and control system
JI Shi-ming，LAN Xin-hong
(Key Laboratory of E&M，Ministry of Education & Zhejiang Province，Zhejiang University of Technology，Hangzhou 310014，China）
Abstract：In order to solve the problems of flow pipe is to small to the conventional sensor for solid-liquid two phase softness abrasive flow，a monitoring method based on the vibration signal was proposed. Through the wavelet packet analysis of vibration signal，extraction signal characteristics were gotten. Using object-oriented technology，a kind of measurement and control software framework was developed，combined with finite state machine theory and embedded real-time operating system and programming methods of multitasking. Using Linux and DSP/BIOS RTOS，the double operating system signal processing technology was implemented，a multi-channel high speed data acquisition function was implemented on the intelligence embedded real-time measurement and control platform. The results indicate that it is easy to expand and interactive.
Key words：solid-liquid two phase softness abrasive flow；vibration signal；object-oriented；finite state machine