Realization Of Processing Control Unit In Complex Remote Sensing System

This paper is based on active and passive remote sensing system. The processingcontrol unit is researched and designed in this thesis. In this system, there are manyrequirements of controlling and I/O pins. The timing of the system is complex. So theprocessing control unit performs real-time control and uploads the system states and thedata collected. According to the controling requirements of complex remote sensing system,the universal controling unit is designed. The unit has perfect function, good extension andstrong real-time performance. In addition, aone-to-many communication protocol based onsingle bus is designed.The research work of this thesis is as follows:(1) The hardware design of the processing control unit. Based on technical index,multichannel ADC sampling, FPGA, single bus one-to-many communications, digitalacquisition system are thorough researched. This thesis finished implementationscheme that contains control module, data acquisition module, the data transmissionmodule.(2) The complex remote sensing system hardware design in detail. The system is dividedinto LVTTL control, temperature control, analog signal and digital signal dataacquisition, multi-channel ADC sampling and single bus one-to-many datatransmission. Each module circuit is designed in this thesis.(3) The software design of complex remote sensing system. For complex data transmission,a set of single bus one-to-many software protocol is designed. The protocol implementeffectively the real-time communication of single bus one-to-many.(4) Debugging of the system hardware and software.