物联网网关通信信道扩展的研究

Research on communication channel expansion of Internet of things gateway

针对物联网技术中遇到的底层设备多而通信可能不畅的问题,文中以单片机作为控制器,结合RS232接口扩展电路,实现物联网网关通信信道的扩展。文中给出了网关系统结构图,进行了软硬件设计,使一个RS232接口连接四台信息感知设备,并能实现接口之间的相互转换。该网关的研制可以提高物联网底层的硬件携带能力和数据传输效率,在使用物联网技术的系统中具有一定的实用价值。

There are a large numbers of bottom equipments in the Internet of things, and the communication between them may not be smooth. So this paper takes the microcontroller as the controller, combined with the RS232 interface circuit to achieve the expansion of the Internet of things gateway communication channel. In this paper, the structure of the gateway system is given, the hardware and software design is carried out, and a RS232 interface is connected with four information sensing devices. The development of the gateway can improve the hardware and data transmission efficiency of the bottom layer of the Internet of things, and has some practical value in the system using the Internet of things technology.