Abstract: In view of the present marine airbags pressure monitoring method of using only the mechanical pressure gauge, it presents the design of a new wireless network gas pressure acquisition system, based on ZigBee, to monitor marine airbag pressure status. Functionally, the acquisition system can be divided into three parts: the collector, the repeater and the sensor node respectively. The system's hardware structure design was mainly based on the Texas Instrument's ZigBee chip CC2530 and Freescales gas pressure sensor MPX5700. The software design was based on the Z-Stack 2007 protocol of Texas Instrument. The test result shows that the system can function with great reliability, thus meeting the requirements for its design and application.

Key words: ZigBee; CC2530; marine airbags; pressure sensor; Z-Stack 2007