Wireless Data Acquisition System Development and Application on HVAC Equipment

摘要

An appropriate monitoring and control system of the HVAC system is necessary to reduce its energy consumption on the premise of ensure the users' comfort. A suite of wireless data acquisition system for HVAC system have been developed in this paper to resolve the cabling difficulties existing in the installation process of the sensors distributed at the end of the HVAC system. The acquisition system utilized a low-power and high-performance stm32fl03RBT6 microcontroller as the MCU and a wireless transceiver module nRF24L01 and an Ethernet transceiver module W5100 to transfer data. Then the data will be stored in the SQL database and can be observed online. The working process and the practical applications of the acquisition system have been introduced. Finally an acquisition experiment based on the water system of an actual air conditioning system is conducted and the result shows that the wireless data acquisition system works stably and can overcome the difficulties in cabling and signal attenuation.