【摘要】 针对目前飞速发展传感器网络及其成本较高、传输速率有限的现状,提出了一种新的设计解决方案。设计中根据传感器网络的特点,采用集成以太网MAC层和PHY层的Cortex-M3内核的处理器,并采用瘦型TCP/IP协议栈对传感器网络的传输性能进行优化。最后经过实际测试证明以此为基础的传感器节点最大传输带宽可以达到22.3Mbit/s,充分体现了其低成本,小体积,高性能的特性,能够满足图像传感器网络等较大数据量传输时的应用需求。更多还原

【Abstract】 The application of sensor network is increasingly extensive,but it is restricted by high cost and low transmission speed.This paper put forward a solution,which uses the Cortex-M3 core processor and TCP/IP protocol stack.The result of test shows that a node’s maximum transmission bandwidth can be up to 22.3 Mbit/s,embodies the characteristic of high speed and low-cost.It would meet the requirements of the application of large volume of data transmission,such as image sensor networks.更多还原