Patent ID: 9188993
Filing Date: 2015-11-17
Classification: G05B,G05D

Abstract:
1. A computerized method of maintaining a temperature of a surface in a building space above a dew point of the building space, the method comprising: calculating a dew point based on a temperature measurement and a relative humidity measurement; estimating a safety margin associated with the dew point calculation, wherein the safety margin comprises a function of at least one of: (a) a mathematical uncertainty associated with a measurement of at least one of the temperature of the building space and the humidity, (b) a mathematical uncertainty associated with a rate of change of the measurement of at least one of the temperature of the building space and the humidity, and (c) a mathematical uncertainty associated with a location of the measurement of at least one of the temperature of the building space and the humidity; determining a minimum temperature of the surface, wherein the minimum temperature is a function of the dew point and the safety margin; and commanding a first component of a building automation system to adjust a current temperature of the surface to be greater than the minimum temperature.