为了测试车联网应用程序和协议在面对节点失效或节点新增时的鲁棒性,设计并实现了一种可重构的车联网网络试验平台。该试验平台包括车载终端、路侧节点和远程终端 PC。车载终端由超级节点、Telosb 传感器节点、RFID 读写卡器组成;路侧节点由超级节点和 RFID 读写卡器组成。车载终端和路侧节点的通信通过 RFID 完成,路侧节点和远程终端 PC 通信通过局域网来完成。该试验平台中车载终端中的传感器网络是以 Twist 为基础设计的,Twist 传感器网络可以很容易改变网络拓扑结构,因此本试验平台是可重构的。经过对系统命令响应时间延迟的测试,本试验平台能够在延迟时间可以接受的范围内改变网络的拓扑结构。
Abstract
In order to check the robustness of application and protocols against node failures or addition of new nodes
a reconfigurable testbed of internet of vehicles which includes vehicle terminal
road side node and remote terminal computer is designed. Vehicle terminal includes supernode
Telosb sensor node and RFID reader card module.Road side node includes supernode and RFID reader card module. The communication between vehicle terminal and road side node is achieved by RFID
the communication between road side node and remote terminal computer is achieved by local area network.The wireless sensor network of vehicle terminal is based on Twist which can easily change topological structure
so the testbed is reconfigurable.After the system command response time delay test
the test platform can change topological structure within the range of acceptable delay time.