化工学报
化工學報
화공학보
CIESC Jorunal
2015年
10期
4085-4091
,共7页
报警管理%报警死区%延时器%滋扰报警
報警管理%報警死區%延時器%滋擾報警
보경관리%보경사구%연시기%자우보경
alarm managements%alarm deadbands%delay-timers%nuisance alarms
滋扰报警是过程工业报警系统的主要问题，然而，目前报警优化方法一般敏感度低、可靠性差，根据报警变量之间的时间间隔和报警持续时间确定滋扰报警的形式，提出了自适应报警死区和报警延时器的计算方法，利用时间序列ARMA模型预测报警死区来处理高频报警，并利用报警间隔时间更新报警延时器参数n来处理低频报警。通过工业实例数据验证表明，所提出的方法能够有效减少滋扰报警的数量、提高报警系统的性能。
滋擾報警是過程工業報警繫統的主要問題，然而，目前報警優化方法一般敏感度低、可靠性差，根據報警變量之間的時間間隔和報警持續時間確定滋擾報警的形式，提齣瞭自適應報警死區和報警延時器的計算方法，利用時間序列ARMA模型預測報警死區來處理高頻報警，併利用報警間隔時間更新報警延時器參數n來處理低頻報警。通過工業實例數據驗證錶明，所提齣的方法能夠有效減少滋擾報警的數量、提高報警繫統的性能。
자우보경시과정공업보경계통적주요문제，연이，목전보경우화방법일반민감도저、가고성차，근거보경변량지간적시간간격화보경지속시간학정자우보경적형식，제출료자괄응보경사구화보경연시기적계산방법，이용시간서렬ARMA모형예측보경사구래처리고빈보경，병이용보경간격시간경신보경연시기삼수n래처리저빈보경。통과공업실례수거험증표명，소제출적방법능구유효감소자우보경적수량、제고보경계통적성능。
Nuisance alarms are recognized as the major problem in the process industry. However, current alarm optimization methods usually suffer difficulties such as low sensitivity and poor reliability. In this paper, based on alarm interval and alarm duration of alarm data, the types of nuisance alarms are determined before an adaptive method to effectively determine the delay timers and alarm deadbands. An ARMA model is established to forecast adaptive alarm deadbands which are employed to deal with high frequency alarms, while the alarm delays updated by adaptively adjusting alarm time intervals are used to deal with low frequency alarms. Experiments with industrial process data are carried out, illustrating that the proposed method can reduce the numbers of false and missed alarms as well as improve the performance of alarm systems.
