Abstract:

An acquisition system for collecting multipoint atmospheric pressure parameter based on ZigBee technology is designed and implemented for real-time measurement of the atmospheric pressure at different heights.The network topology of ZigBee technology is studied from the perspective of applications.A tree wireless network with several nodes is built using the SOC chip CC2530 under the TI's Z-STACK protocol.Each terminal node and touting node can acquire the atmospheric pressure using the BMP085 sensor and send the data to the coordinator node through the network.Then the data are processed on the PC.The results show that the system obtains high precision data a small error.

Key words: multipoint;CC2530;ZigBee;BMP085