以工控机为基础的数据采集与控制系统是集中控制方式，线路比较复杂，可靠性比较差。
The traditional data acquisition and control system based on industry computer has complex circuit and bad reliability.
20世纪八十年代所建泵站，在自动化方面虽有所进步，但主要还是采用弱电集中控制方式。
Though the automatization level of the pumping stations built in eighties of 20 century has made some progress, the controlling way is adopted the weak electricity centralized form only.
该系统将可编程控制器用于铁路信号系统中并作为系统的核心控制器，取代了传统的电气集中控制方式，克服了其系统庞大，可靠性低的缺点。
This system USES PLC in railway signal system as the core controller and it replaces the additional electric centralized control mode, overcomes the disadvantages such as hugeness, low reliability.
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