PATENT CLAIM ANALYSIS

Application Number: 16011120
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-10
Patent Classification: ["165", "208000"]

Abstract:
Apparatus and methods for Fault Detection Diagnostics (FDD) for a Heating, Ventilating, Air Conditioning (HVAC) system with an economizer to detect: 1) air temperature or relative humidity sensors failed/faulted, 2) dampers not modulating, 3) excessive outdoor air, 4) economizing when should not, 5) not economizing when should and 6) inadequate outdoor air. Economizer damper position is measured using at least one inertial Micro-Electro-Mechanical System (MEMS) device: 1) magnetometer, 2) accelerometer, 3) IMU and 4) rotatiometer. The magnetometer detects damper position using a small permanent-magnet attached to a movable damper and a MEMS device attached to the economizer frame. The accelerometer and IMU detect damper position using a MEMS device attached to the damper, and the ratiometer detects angular damper position. The methods determine whether or not the HVAC economizer, sensors, actuator and outdoor air dampers are functioning properly. If economizer faults are detected, then the method provides electronically-transmitted fault signals.

Claim (Index 8):
The apparatus of  claim 1 , wherein the apparatus provides additional FDD for the HVAC system with the economizer to detect at least one fault selected from the group consisting of:\n an air temperature sensor failed or faulted based on measuring at least one signal selected from the group consisting of: a floating signal, a grounded signal and a temperature measurement outside of a tolerance range selected from the group consisting of: OAT less than \u221250\u00b0 F. or greater than +140\u00b0 F., RAT less than 50\u00b0 F. or greater than 120\u00b0 F., MAT less than \u221250\u00b0 F. or greater than +140\u00b0 F., SAT for cooling less than 33\u00b0 F. or greater than 120\u00b0 F. and an SAT for heating less than 65\u00b0 F. or greater than 140\u00b0 F., a relative humidity sensor failed or faulted based on measuring at least one signal selected from the group consisting of: a floating signal, a grounded signal and a relative humidity measurement outside zero percent to 100 percent relative humidity, dampers not modulating when the dampers do not move to a position commanded by the economizer, excessive outdoor air when the dampers are open beyond a position commanded by the economizer with or without economizer perimeter gap air leakage during at least one operating period selected from the group consisting of: system off, fan only, thermostat calling for cooling, thermostat not calling for cooling, thermostat calling for heating, thermostat not calling for heating, economizing when should not when the dampers are open beyond a minimum position when the outdoor air temperature or relative humidity are above a threshold setting, not economizing when should when the dampers are open less than a fully open position when the outdoor air temperature or relative humidity are below a threshold setting, and inadequate outdoor air when the dampers are open less than a minimum position commanded by the economizer with or without economizer perimeter gap air leakage during at least one operating period selected from the group consisting of: system off, fan only, thermostat calling for cooling, thermostat not calling for cooling, thermostat calling for heating, thermostat not calling for heating; and wherein the FDD sensor tolerances, the dam per position and status of the economizer faults are communicated from the apparatus through a wired connection or a wireless connection to a building energy management system, a standard thermostat, a WIFI-enabled thermostat, an internet-connected computer, an internet telephony system, or a smart phone software application to check and correct the air temperature sensor tolerances, the damper minimum position or status of the economizer faults of the HVAC equipment economizer.

Metadata:
- Claim Count in Document: 41.0
- Percentile: 94.0
- Lexical Diversity: 2.06667
- Patent Class: 165.0
- Transitional Phrase Type: closed
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15169586', '15358131', '15614600', '14521096', '14968390']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9032661105311058
- 35 USC 102 Novelty (BERT): 0.5890295106546871
- Combined Prediction Score: 0.871842450543464
- Mean Citation Score: 406.396958
- Max Citation Score: 644.20166
- Similarity Product: 428.6332184020376

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test