Multi Sensor Signal Processing Technology Research in Space Plant Cultivation Device
Wang Jin · Science Technology and Engineering · 2013
In the space plant cultivation device,there are semiconductor unit,AC motor device which cause interference for analog signal acquisition. The better filter process to analog signals will directly affect the accuracy of measurement. In order to improve the measurement precision,the IIR digital filter algorithm is applied to the analog signal acquisition combine with fitness sensors. Experimental results show that space plant cultivation device based on selected sensor and IIR filtering algorithm can obtain good measurement data,through closed-loop control can meet the growth of plants requirements.