Dynamic alarm presentation in a nuclear plant control room
First Claim
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1. In a nuclear power plant having a nuclear steam supply system constituted by a multiplicity of components which can be operated in a coordinated manner to control plant operating variables for each of a plurality of preestablished plant operating modes;
- means for measuring a preestablished plurality of said operating variables and generating a first plurality of parameter signals commensurate with at least some of said variables;
means for storing a set point value for each of said parameter signals;
an alarm display containing a plurality of alarm tiles associated with said plurality of parameter signals;
alarm logic means for generating an alarm signal when a particular parameter signal exceeds a particular set point; and
means for activating a particular tile in response to said alarm signal;
wherein the improvement comprises;
means for generating a variable of set points for each parameter, each value of such variable set point corresponding to one of said plant operating modes;
the alarm logic means compares said particular parameter signal with the particular value of said variable of set point corresponding to the particular mode in which the plant is operating;
whereby the activation of an alarm tile is dependant on the value of its corresponding parameter signal and a variable set point value dependant on the mode of plant operation.
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Abstract
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.
31 Citations
5 Claims
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1. In a nuclear power plant having a nuclear steam supply system constituted by a multiplicity of components which can be operated in a coordinated manner to control plant operating variables for each of a plurality of preestablished plant operating modes;
- means for measuring a preestablished plurality of said operating variables and generating a first plurality of parameter signals commensurate with at least some of said variables;
means for storing a set point value for each of said parameter signals;
an alarm display containing a plurality of alarm tiles associated with said plurality of parameter signals;
alarm logic means for generating an alarm signal when a particular parameter signal exceeds a particular set point; and
means for activating a particular tile in response to said alarm signal;
wherein the improvement comprises;means for generating a variable of set points for each parameter, each value of such variable set point corresponding to one of said plant operating modes; the alarm logic means compares said particular parameter signal with the particular value of said variable of set point corresponding to the particular mode in which the plant is operating; whereby the activation of an alarm tile is dependant on the value of its corresponding parameter signal and a variable set point value dependant on the mode of plant operation. - View Dependent Claims (2, 3, 4, 5)
- means for measuring a preestablished plurality of said operating variables and generating a first plurality of parameter signals commensurate with at least some of said variables;
Specification