EQUIPMENT FAULT DETECTION, DIAGNOSTICS AND DISAGGREGATION SYSTEM
First Claim
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1. A roof top unit fault detection and diagnostics appliance comprising:
- a computer for connection to a roof top unit;
a vibration sensor for attachment to a roof top unit and connected to the computer; and
one or more current sensors for connection to a power feed to the roof top unit and connected to the computer; and
wherein;
the vibration sensor provides signals representing vibration at the roof top unit to the computer;
the one or more current sensors provide signals representing total power consumption by the roof top unit; and
the signals representing vibration and total power consumption are analyzed to check for certain types of degradation and malfunction of the roof top unit.
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Abstract
A system for fault detection and diagnostics of equipment. The system may also be capable of disaggregation and/or virtual submetering of energy consumption by equipment, such as that of heating, ventilation and air conditioning, lighting, and so forth, in a building. Vibration and current sensors, along with one or more algorithms, may be utilized for fault detection and diagnostics of equipment. Models may be developed to aid in deducing energy consumption of individual components of equipment, and the like, for a building.
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Citations
20 Claims
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1. A roof top unit fault detection and diagnostics appliance comprising:
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a computer for connection to a roof top unit; a vibration sensor for attachment to a roof top unit and connected to the computer; and one or more current sensors for connection to a power feed to the roof top unit and connected to the computer; and wherein; the vibration sensor provides signals representing vibration at the roof top unit to the computer; the one or more current sensors provide signals representing total power consumption by the roof top unit; and the signals representing vibration and total power consumption are analyzed to check for certain types of degradation and malfunction of the roof top unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A virtual submetering system for a commercial building comprising:
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a library of electrical power robust models representing virtually all types of equipment encountered in commercial buildings; and a set of generic device models in the library for achieving a generality for particular devices constituting a type of equipment so that a generic device model is developed to incorporate terms that lead to an electrical power consumption associated with a generic device model representing a device. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A system for virtual submetering power consumption by a building, comprising:
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a library of electricity consumption models; and an algorithm which accesses contextual information of devices of a building being virtually submetered; and wherein; disaggregation of power consumption by the building relative to electricity consumption devices is achieved by using the library of electricity consumption models and contextual information; electricity consumption models represent electricity consumption devices in buildings; and the contextual information is exploited when electricity consumption models are selected from the library, that represent virtually every electricity consumption device connected at an output end of a main electrical meter for the building, and the main electrical meter having an input end for connection to a power feed. - View Dependent Claims (18, 19, 20)
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Specification