Patent ID: 9218733
Filing Date: 2015-12-22
Classification: G05B,G06F,G08B,Y04S

Abstract:
1. A method of detection cooling-loss event, comprising: defining a relative humidity limit and change threshold for a given space in which multiple temperature sensitive devices are stored to detect an air temperature in the given space; measuring relative humidity in the given space; determining, with a processing unit, whether the measured relative humidity is within the defined relative humidity limit; generating a warning in an event the measured relative humidity is outside the defined relative humidity limit; determining whether a change in the measured relative humidity is less than the defined change threshold for the given space in a period of time that is shorter than a period of time required for the multiple temperature sensitive devices to sense effects of a cooling loss event; and generating an alarm, in an event the change is greater than the defined change threshold, of the cooling loss event prior to the multiple temperature sensitive devices sensing effects of the cooling loss event; and a temperature sensor to sense a temperature of the given space, wherein the early detection apparatus comprises a warning system and is configured to generate a warning in an event the relative humidity sensor senses that relative humidity in the given space is outside a defined relative humidity limit or the temperature sensor senses that a temperature of the given space is outside a defined temperature limit.