摘要:
Method, system and product for assessments of an operation of an Heating Ventilation or Air-Conditioning (HVAC) unit. In one embodiment, the apparatus comprising: an information receiving module for receiving, directly or indirectly, information from at least one sensor; and a power consumption determination component for indirectly assessing power consumption of an HVAC unit from the information received from the at least one sensor. In another embodiment, the apparatus being configured to receive a set of physical measurements over time from a physical location that is affected by the HVAC unit; fitting the set of physical measurements on a predetermined curve using parametric fit, wherein the predetermined curve has an horizontal asymptote, wherein the predetermined curve has a decreasing slope over time; and comparing a target measurement of the HVAC unit with a location of the horizontal asymptote to determine whether the HVAC unit is expected to reach the target measurement.
摘要:
In a multi-sensing, wirelessly communicating learning thermostat that uses power-harvesting to charge an internal battery, methods are disclosed for ensuring that the battery does not become depleted or damaged while at the same time ensuring selected levels of thermostat functionality. Battery charge status is monitored to determine whether the present rate of power usage needs to be stemmed. If the present rate of power usage needs to be stemmed, then a progression of performance levels and/or functionalities are scaled back according to a predetermined progressive power conservation algorithm. In a less preferred embodiment, there is a simple progressive shutdown of functionalities turned off in sequence until the desired amount of discharge stemming is reached. Battery charge preservation measures are also described for cases when an interruption of external supply power used to recharge the battery is detected.
摘要:
An occupancy sensing electronic thermostat is described that includes a thermostat body having a curved exterior front surface, a dot matrix display mounted within the body viewable by a user in front of the front surface, a passive infrared sensor for measuring infrared energy and a shaped Fresnel lens having a smooth outer surface that extends across only a portion of the exterior front surface of the thermostat body. The Fresnel lens is shaped and curved so as to conform to and form a part of the curved exterior front surface of the thermostat body. A second downwardly directed passive infrared sensor can also be provided to aid in the detection of an approaching user who intends to interact with the thermostat.
摘要:
Systems and methods are provided for controlling a setback mode of a power-consuming device, and for controlling setback recovery of power-consuming devices, in order to make setback and setback recovery more dynamic based on current environmental parameters and previous observed operating parameters, in order to enable more efficient operation of power-consuming devices resulting in reduced energy costs and increased power efficiency.
摘要:
L'invention concerne un dispositif de chauffage, ventilation et/ou climatisation 1 comprenant au moins un premier composant 9 de génération de chaleur et/ou de froid, au moins un second composant 13, un circuit d'alimentation 3 électrique commun au premier et second composants, et une commande 4 du circuit d'alimentation 3. Les premier et second composants coopèrent pour produire en sortie de l'air à une température choisie. Le dispositif est remarquable en ce qu'il comprend en outre un relai 5, pour interrompre l'alimentation du premier composant 9. Le relai 5 peut être activé indépendamment de la commande 4 et est disposé dans le circuit de sorte que l'alimentation du second composant 13 est indépendante de l'état d'activation du relai 5.
摘要:
A thermostat and related methods is described for controlling an HVAC system having one or two separate transformers for supplying power to the HVAC system. The thermostat includes isolation circuitry housed within the thermostat to safely connect to the HVAC control wires and power wire(s) whether the HVAC system has one or two separate transformers without the use of removable jumpers or manual rewiring. The thermostat can include a processor that sends DC signals for turning on and turning off each of the HVAC functions, and an isolator adapted to electrically isolate the processor from the control wires and power wire(s). The circuitry can include one or more field effect transistors adapted and arranged so as to open or close an electrical connections between the control and power wires, thereby turning on or off the associated HVAC function.
摘要:
Systems and methods are disclosed for analyzing building sensor information and decomposing the information therein to a more manageable and more useful form. Certain embodiments integrate energy-based and spectral-based analysis methods with parameter sampling and uncertainty/sensitivity analysis to achieve a more comprehensive perspective of building behavior. The results of this analysis may be presented to a user via a plurality of visualizations and/or used to automatically adjust certain building operations. In certain embodiments, advanced spectral techniques, including Koopman-based operations, are employed to discern features from the collected building sensor data.