现场总线技术具有丰富的内涵，涉及到智能仪表技术、网络通信技术、实时控制技术、集成电路技术和计算机技术等诸多领域。
The field bus technique relates to several fields of intelligent instrument, network communications, real-time control, integrated circuit technique and computer technology etc.
在上位机监控系统中，主要完成的是对通信设置的选择控制、现场采集数据的实时刷新显示等。
In host computer control system, mainly achieve choice of serial communication control, the collection of real-time data updating display and historical data charts analysis.
作为现场总线的CAN，是一种开放式互联网络，用以支持多主实时、分布式控制串行通信。
CAN used as the field bus is an opening network for supporting a multiple-master real-time and distributed controlling serial communication.
控制主机做为系统的控制和综合判断中心，利用RS-485通信线与PLC进行通信，实现现场设备的实时监控。
The master computer is used as the centre of control system and synthetic judgment, and is connected with PLC by RS-485 communication line to perform real-time monitoring on local apparatus.
以太网存在通信不确定性，不能满足实时性要求，成为应用于工业现场设备层网络的主要障碍。
Non deterministic communication delay of Ethernet which can't satisfy the real time request of industrial control has become the main obstacle in application on filed device layer network.
该方法能提供报文服务和短帧信息结构，满足现场通信的实时性要求。
According to this solution, the requirement of real-time in field communication can be fulfilled as a result of its message service and short frame structure.
提出一种新型的基于无线通信的高压断路器温度在线监测系统的设计。利用先进的温度传感器ds18 B 20采集现场的实时温度。
This paper presents a new design scheme of temperature on-line monitoring system of high voltage circuit breaker based on wireless communication.
提出一种新型的基于无线通信的高压断路器温度在线监测系统的设计。利用先进的温度传感器ds18 B 20采集现场的实时温度。
This paper presents a new design scheme of temperature on-line monitoring system of high voltage circuit breaker based on wireless communication.
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