Design of Highway Road Surface Condition Perception System Based on NB-IoT
In response to the current situation of monitoring road conditions such as long transmission distance,large number of device access points,and complex networking,several common LPWAN low-power wide area network technologies were compared horizontally.In response to the problems of manual inspection,high laying cost,and single function in collecting road surface conditions,a four layer system design architecture was adopted,which includes terminal perception,communication control,data processing,and application performance.The characteristics of NB-IoT,such as wide coverage,high speed,low power consumption,low cost,and large connectivity,were fully utilized.A road surface condition perception system based on NB-IoT was designed in detail,and real-time road condition information was collected and processed during the experiment meteorological information and emergency information are used to improve the safety factor of public travel and the efficiency of highway operation.