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 1):
Apparatus to provide Fault Detection Diagnostics (FDD) for a Heating, Ventilating, Air Conditioning (HVAC) system with an economizer comprising:\n a microprocessor; an electric power supply input; an electrical output to control an actuator used to control a dam per position; at least one sensor input used to measure at least one HVAC parameter selected from the group consisting of:\n an Outdoor Air Temperature (OAT), \n a Return Air Temperature (RAT), \n a Mixed Air Temperature (MAT), \n a Supply Air Temperature (SAT), and \n a Relative Humidity (RH); and \n wherein the microprocessor checks the sensor input to determine whether or not the signal is failed and outside of a required signal tolerance or the measurement is faulted and outside of a required tolerance; at least one electrical signal input to receive an electrical signal from at least one damper position sensor selected from the group consisting of:\n an accelerometer sensor, \n a magnetic sensor, \n an Inertial Measurement Unit (IMU) sensor, and \n a rotation or angular position sensor referred to as a rotatiometer; \n wherein the microprocessor uses the dam per position sensor electrical signal to determine at least one condition selected from the group consisting of:\n the damper position with respect to at least one reference or rotational position within a 3-dimensional coordinate system, and \n whether or not the damper position is outside a required tolerance; and \n if the sensor is failed or the measurement is faulted or the dam per position is outside of a required tolerance, then the microprocessor generates a FDD alarm signal for the sensor or the dam per position.

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

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.875309563919253
- 35 USC 102 Novelty (BERT): 0.6036134312042377
- Combined Prediction Score: 0.8481399506477514
- Mean Citation Score: 406.396958
- Max Citation Score: 644.20166
- Similarity Product: 473.078144964745

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