Balance Measurement System based on Embedded OMAP and Filtering

Micro controller and peripheral devices concatenated balance measurement system, which is in low integration level and large measurement error, and have a lot of obstacles to implement intelligent milling on the high speed occasions. Firstly, this paper discussed the way to implement intelligence milling balance measurement system based on embedded OMAP dualcore architecture could reasonably plan the general task of the balance test system according to its advantages, and used ARM subsystem to complete control function of the balance mechanical’s electrical system; DSP subsystem realized digital signal processing and calculation of unbalance. Secondly, in order to accurately extract the characteristics of unbalanced signal from strong interference sources and effectively restrain signal interference, the software designed and completed tracking digital band pass filter based on harmonic wavelet package. We use the harmonic wavelet packet with the feature of infinite segmentation for the signal in the frequency domain to extract the characteristics of any period of weak signal. The simulation results show that the digital band pass tracking filter based on harmonic wavelet packet can effectively restrain the nearly frequency signal interference, improve the signal-tonoise ratio, restore the initial unbalance signal characteristics. In high-speed situations, the system can achieve high efficiency, high precision and intelligence targets.