JPS56124913A - Process monitoring equipment - Google Patents

Abstract

PURPOSE:To judge from the integrating value and omit the work for raising an alarm by a monitor, by always computing the integrating value in a prescribed unit time of the process value, and constituting the equipment so that the alarm is output when said integrating value has exceeded the prescribed value. CONSTITUTION:The process input device 2 converts an analog signal 21 of rain- fall, flow rate, etc. to a digital signal by a prescribed sampling period, and outputs it to the integrating circuit 31 and the intensity operational circuit 35. An output of the device 2 is integrated by the integrating circuit 31, and the integrated values of the respective time units are stored in the memories 32-34. Also, as for the output of the device 2, for instance, the integrated values of 10min, 30min and 1hr which are updated at every 10min, and the integrated velue of 3hr which is updated at every 30min are stored in the memories 36, 37, 38, and the memory 39, respectively. The contents of the memories 32-34, 36-39 are displayed or printed by the output device 4. Furthermore, the contents of the memories 36-39 are always compared with a prescribed value which has been set in advance, and when said contents have exceeded this prescribed value, an alarm is output by driving the alarm output device 5.