| 摘要 |
An alarm system in a nuclear power plant control room having means for computing a representative condition signal for a plant parameter and a display interface 78 having a first screen area for displaying an activated alarm tile image when the representative signal exceeds a threshold and a second screen area for displaying an alarm-related message pertaining to the activated tile. The priority of a spatially fixed, activated alarm tile on an alarm tile array is indicated by a shape coding at the tile, and preferably the same shape coding is used wherever the same alarm condition is indicated elsewhere in the control room. The status of an alarm tile can change automatically or by operator acknowledgement but tones and/or flashing cues continue to provide status information to the operator. The alarm activation set point and priority for a given, spatially fixed alarm tile can vary depending in part on the mode of plant operation. Alarm acknowledgement can be made not only at the alarm tile array of a given console but via other touch sensitive alarm indications in the screen displays of the monitoring system at the same or other consoles. Touching one tile can acknowledge multiple alarm sources. <IMAGE> |
