48Microcontrollers&EmbeddedSystems2023年第6期www.mesnet.com.cnNBIoT和eMTC远程无线物联网通信开发应用怯肇乾,徐鹏,孙建言(大连科技学院,大连116036)摘要:在LPWAN中,NB-IoT和eMTC技术一推出便在远程无线物联网通信中获得了广泛应用,其应用设计的关键是选择好性价比高的NB-IoT/eMTC芯片或模块编程实现UDP/COAP/LwM2M/MQTT等协议。开发产品时,含有NB-IoT/eMTC的终端设备接入软件系统,可以通过OneNET等中间云服务平台,也可以基于COAP等协议直接进行灵活构造解析,完成采集数据的上报和控制数据的有序下发。区分不同应用场景采取不同的数据收发和低功耗策略,可以发挥NB-IoT/eMTC的优良性能。关键词:NB-IoT;eMTC;LTE-M;UDP;COAP;LwM2M;MQTT;HTTPS;OneNet中图分类号:TP36文献标识码:ADevelopmentofRemoteWirelessIoTCommunicationinNB-IoTandeMTCKaiZhaoqian,XuPeng,SunJianyan(DalianUniversityofScienceandTechnology,Dalian116036,China)Abstract:InLPWAN,NB-IoTandeMTCtechnologieshavebeenwidelyusedinremotewirelessInternetofThingscommunicationssincetheirintroduction.Thekeytotheirapplicationdesignistoselectacost-effectiveNB-IoT/eMTCchipormoduleprogrammingtoimplementprotocolssuchasUDP/COAP/LwM2M/MQTT.Whendevelopingproducts,terminaldevicescontainingNB-IoT/eMTCcanaccessthesoftwaresystem,eitherthroughintermediatecloudserviceplatformssuchasOneNET,orthroughflexibles...