Research And Development On The Of The Embeded Terminal Based On IOT Application

The network terminal equipment is the core of the Internet of things, is very improtant part of development of Internet of things. Most of the network terminal are developped for particular filed, commonality and compatibility is very poor, so it restricts the development and the development of the Internet of things. Based on this,this paper aims to develop a kind of the Internet of things embedded terminal equipment with flexible interface and universality, and research the key related technology, the work of this paper is mainly reflected in the following aspects:(1) To meet the need of varety sensor access, we developed a set of general monitoring system based on Internet of Things, the terminal nodes can be flexible to support a variety of sensors, and has a general communication protocol, provides extension interface, the system not only support the research which we just have done jet, we can also support the other application of Internet of things just chage the part of the system;(2) Based on the ZigBee protocal, by using the Z-Stack task scheduling and message passing mechanism, and research on the networking methon of the IOT node, achive the networking function and wireless transmission function of the IOT terminal based on the embedded system architecture;(3) Analysis the power consumption, parameters and performce of embedded terminal equipment in detail, and research on the power, work mode and the management mechanism, and combined with the low power consumption strategy, optimize the function of the energy efficency management of the embedded equipment;(4)According to the network security, this paper studies a kind of isolator for the isolation of different networks, research on the operation mechanism and the communication protocol, design the related runing mechanism and commnunication protocal, developed a IOT gateway equipment with physical isaolation function.Using the cold chain logistics as the background to test and verify the function of system, which achive ad hoc network, flexible sensor interface, low power consumption,and network security isolation, whole system has strong expansibility and certain practicality.