RF Data Acquisition System Research And Design

With the scientific and technological development, people demand more and more comfortable living environment. It led to the formation of the smart home concept. In the smart home system, monitoring and analysis for the current state of the environment is the primary. In order to solve the inconvenience in the indoor wiring problem, the paper design of this wireless data acquisition system, to the collection and analysis of indoor living environment indicators.The main contents of the thesis are as follows:(1) The article introduced the Data Acquisition System technology status on the current and the main short-range wireless communications technology. The paper System takes the Wireless communication technology into the field of data acquisition. It demands for practical applications of the system design of the overall plan., and completed the data collection terminal nodes and the structural design.(2)As low power consumption and modular components for the selection of the principle, the appropriate sensors and MCU with the actual situation was selected. The PTR8000 was choose whose core wireless transceiver programmer is from the two major wireless IC design companies NORDIC and Chipcon's several chips. The paper mentions the corresponding sensor design elements. The measurement programmers of temperature and humidity sensor nodes were introduced.(3) The acquisition of wireless data nodes hardware circuit design and related development and debugging was completed. The design included sensor interface circuit design and data acquisition and processing-related programming, radio frequency modules and the interface design of the MCU and PC communications interface design. Eventually It achieved a low-power, data transmission and reliable wireless data transmission system. This system can complete a very good indoor living environment of the current indicators of the collection tasks.Although the design of wireless data acquisition system for the intelligent home in this paper. The system can be improved with the sensor nodes to further expand to other such as industrial control, instrumentation, and other fields of states monitoring.