由于传统的电力授时终端进行通信数据传输时具有吞吐量低、时间同步精度低的问题,对此,研究基于MQTT(message queuing telemetry transport)协议的新型电力系统通信网络安全的电力授时终端。该方法在电力授时终端的硬件设计中,设计了守时模块、双模卫星导航接收模块、应用接口模块、显示模块和主控模块;在电力授时终端的软件设计中,将离散域采样数据模型引入软件设计中,以此为依据设计DC/ DC 变换器的等效电路,利用该电路对信号进行采集,并将采集到的信号转变为数据,完成数据采集,通过MQTT 协议完成电力授时终端的数据传输,结合硬件和软件设计完成电力授时终端的设计。实验结果表明,文中方法的时间同步精度高,吞吐量高、通信数据传输时延低。
英文摘要:
Due to the issues of low throughput and low time synchronization accuracy when traditional power timing terminals transmit communication data, a power timing terminal for novel power system communication network security based on MQTT (message queuing telemetry transport) protocol is studied. In the hardware design of the power timing terminal, this method includes a time keeping module, a dual-mode satellite navigation receiving module, an application interface module, a display module, and a main control module. In the software design of the power timing terminal, the discrete domain sampling data model is introduced into the software design, and on this basis, the equivalent circuit of the DC/ DC converter is designed. The signal is collected using this circuit, and the collected signal is converted into data to complete data collection. The data transmission of the power timing terminal is completed through the MQTT protocol, and the design of the power timing terminal is completed by combining hardware and software design. The experimental results show that the proposed method has high time synchronization accuracy, high throughput, and low communication data transmission delay.