Design And Implementation Of Low Power Long Range Network Based On CC1310

In recent years,low-power wide area network(LPWAN)technology has been increasingly used in areas such as city smart reading meter,drone communications and basic civil facility monitoring.LPWAN is an absolutely attractive technology,which enables low-cost end devices to communicate with the base station ove r long distances from hundreds of bps to dozens of kbps rate.It meets the requirements of large-scale,wide-coverage,low-power applications.At present,based on LPWAN network key technology research and system design has become an important research direction of the Internet of Things.Because the exiting NB-IOT and Lo Ra have high costs,and the network downlink power consumption is high.So based on commodity CC1310 hardware platform,this paper designs a novel low-power,longrange network,named OPEN-WAN.The main research contents of this paper includes three aspects.(1)For typical application scenarios,we designed and implemented a lightweight star network protocol stack that is suitable for the CC1310 platform.The protocol stack realizes lower-power,reliable network uplink and network downlink through a hybrid architecture with synchronous and asynchronous MAC layers,configurable scheduling and so on.(2)For large-scale network deployment,the problem of mutual interference between subnets is presented.In this paper,a large-scale network multisubnet partitioning method is given.Then the theoretical value of the number of channels to be used in a typical scenario is given through a proof method.(3)In order to manage the network more conveniently,this paper has realized the OPEN-WAN network equipment monitoring function.In a real environment,OPEN-WAN can reach 1.2km distances and it's average power consumption is less than 25 u A.The network uplink can around cover 700×750㎡ campuses,and the downlink radius is about 300 m.In addition,OPEN-WAN has the characteristics of adapting different rates,scalable network size,and simple network deployment.