Towards Achieving Higher Throughput with Microchip Based Small Footprint Wireless Vibration Sensors Using Zigbee and IEEE802.15.4 Protocol

Abstract

The research work of this thesis is to create a platform based on Microchip's ZigBee products with high throughput to satisfy future applications, pipeline integrity monitoring and container integrity monitoring.ZigBee is a wireless network protocol specifically designed for low data rate sensor or control networks. The default sampling rate of Microchip's ZigBee devices is 233, when payload size is set to 80 bytes. However, our future applications need a sampling rate as high as 2000. Thus, in this thesis, we present five strategies to increase the throughput of the System. The original throughput of ZigBee stack is 3.73 kb/s. After optimizations, we make the throughput of the system as high as 41.55 kb/s, which can support a sampling rate of 6520 with data compression or 3531 without data compression. The performance of the system has been improved at least 15 times than the original. This sampling rate can totally satisfy our future applications, pipeline integrity monitoring and container monitoring.