Alarming method of adaptive smoke alarm
A smoke alarm, self-adaptive technology, applied in the direction of fire alarms relying on the effect of smoke/gas, can solve the problems of property loss, casualties, missed timing of controlling the fire source, etc., to overcome the influence of sensitivity, high The effect of sensitivity
Active Publication Date: 2012-08-15
宁波市科技园区佳柏电子有限公司
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Abstract
The invention discloses an alarming method of an adaptive smoke alarm, and the method comprises the following steps of: setting an adjustment period of an alarm threshold in a timer; carrying out primary sampling on smoke concentration and determining the alarm threshold according to a sampling value obtained during the primary sampling; starting the timer to begin timing, and continuously sampling and comparing the sampling value with the alarm threshold; if the sampling value is higher than the alarm threshold, controlling an alarm module to give an alarm; if the sampling value is lower than the alarm threshold, sampling continuously and judging whether the variation range of two adjacent sampling values is less than 10% or not, if yes, timing continuously by the timer and sampling continuously, if not, returning the timer to zero, and timing the adjustment period of the alarm threshold again; and after the adjustment period of the alarm threshold is completed, adjusting the alarm threshold, and restarting the adjustment period of the alarm threshold. The alarming method disclosed by the invention has the advantages that the adaptive adjustment on the alarm threshold according to different environmental factors is realized and higher sensitivity is guaranteed in various environments.
Application Domain
Fire alarm smoke/gas actuation
Technology Topic
Self adaptiveReal-time computing +3
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