摘要
针对传输距离远、设备接入点数量大、组网复杂等公路路况监测现状,横向比较了几种常见的LPWAN低功耗广域网技术;针对公路路面状态采集需人工巡查、铺设成本高、功能单一等问题,采用终端感知-通信控制-数据处理-应用表现 4 层系统设计架构,充分发挥NB-IoT广覆盖、高速率、低功耗、低成本、大链接等特点,详细设计了基于NB-IoT的公路路面状态感知系统,并在实验过程中实时采集和处理了公路的路况信息、气象信息和突发事件信息,以期提高民众出行的安全系数和公路运营效率.
Abstract
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.
基金项目
广西壮族自治区高等学校中青年教师科研基础能力提升项目(2022)(2022KY127)
广西壮族自治区高等学校中青年教师科研基础能力提升项目(2021)(2021KY1127)
NETL
NSTL
维普
万方数据