The Research Of Plant Disease Wireless Transmission System Based On DSP

With the great development of network technology, communication technology and digital multimedia technology, digital and network and intelligent is becoming an important research content of designing video monitoring system. This thesis designs and realizes the plant disease image information wireless transmission based on the research of video code technology, digital image technology.This paper builds up plant disease information wireless transmission system. It mainly studies image compression and decompression based on DM642. At the same time it complets the image collection, compression and wireless transmission of each module in hardware and software design. System includes image acquisition module, the core DM642type DSP module, image information storage module and wireless transmission module. This paper introduces the entire process of the plant image acquisition, processing and wireless transceiver. Simply introduces the characteristics and usage of nRF24L01and TMS32DM642. Meanwhile, it expounds the system’s hardware connection design and the software realization process.System working principle is:JY-424C video camera collects video information. The information pasts video decoder and converts into digital signals. Digital signals go into the DM642processor, which adopts TMS320DM642h.263technology to do image compression coding. The compressed data information transfers to the receiving module through wireless transmission module. The monitoring center will show on the PC and realize disease monitoring and control after receiving compressde data information.This design can easily realize image acquisition, processing and wireless transmission. It is suitable for the real-time video signal transmission which is not high. At last this paper summarizes the theoretical study and experiment. At the same time, it prospects the wireless transmission system.