The Design And Achievement Of Large Capacity Centrifuge Sample Monitoring Project Based On Wireless Sensor Network

Centrifuge is indispensable equipment in medicine and scientific research field where the accuracy of its running parameters (eg. temperature) plays a decisive role. At present, the estimated sample chamber temperature is calculated as a curve fitting quadratic function which is designed based on temperature duck testing. It is obviously that the sample temperature should not be very accurate. In order to give our product more competitive advantages, an accuracy sample temperature collection solution is requested.This paper designed a wireless sensor network (WSN) to monitor actual sample temperature in an air-tight sample chamber for a high volume medical centrifuge. This kind of wireless sensor could be used as an ideal temperature collector in an air-tight sample chamber.Firstly, this paper analyses and compares Zigbee with other wireless technologies to indicates that Zigbee is the best solution applied in this centrifuge project. This paper gives a brief introduction on Zigbee protocol and topological, especially researching the MAC protocol.Secondly, this paper gives a broad overview of the wireless sensor network and realizes both hardware and software design which implements transmission and receival of the pack, network self-configuration, join and detachness of the end node.At last, the wireless sensor network tesing result suggests that the accuracy was increased remarkably.