岭澳二期厂房辐射监测系统数字化设计

The Design of KRT Digital System in Ling Ao Ⅱ

在岭澳二期厂房辐射监测系统(KRT系统)设计中,要求KRT系统的硬件组成结构与岭澳一期大体相似,同时KRT系统必须实现数字化和信息集中管理。为了实现上述目标,将KRT系统分为上、下两层,KRT下层部件将就地仪表的模拟信号通过就地处理单元转化为数字信号,被转化后数字信号通过RS-485传输到KRT上层部件(集中机柜),集中机柜对这些数字信号进行集中,并存储显示在服务器及操作工作站中,或将这些集中信息传输到DCS。另外,集中机柜对这些数字信号进行处理,产生模拟量和开关量,并将模拟量和开关量传输到其他系统。

In the design of KRT system in Ling Ao II, it requires the hardware composition shall be similar to that of Ling Ao I. At the same time, the KRT system should be digitized and centralized. In order to realize the goal, the KRT system will be divided into the lower and upper parts. The local sensor at the lower part will transform the analog signal to digital signal in the local display unit, then the digital signals are sent to the upper part （cabinet） by RS-485, the cabinet collects the signals, saves and displays them in the server or operation workstation, or sends them to the Des. On the other hand, the digital signals ~ be treated into analog or on/off signals in cabinet and transmitted to other systems.