HVAC Remote Diagnostic System Using Server-Based Root Cause Analysis
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Solution Overview
Problem
Conventional HVAC systems lack smart diagnostic capabilities, requiring on-site technician visits to diagnose faults, which can be inefficient and costly, as they only detect issues after they occur and do not provide remote diagnostic testing or notification for necessary repairs.
Innovation Solution
An HVAC system with a thermostat in operable communication with a server that performs diagnostic tests on peripheral components, analyzes results, and sends notifications to technicians with root cause analysis and required equipment, allowing for remote diagnosis and potential system lockouts to prevent damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If conventional HVAC systems use traditional monitoring methods, then system status can be tracked, but diagnostic capabilities are insufficient and require on-site technician visits
Solution Approach 1:
The patent introduces a server as an intermediary component that receives data from HVAC peripherals, performs diagnostic analysis, and communicates results to technicians. This mediator handles the complex diagnostic processing remotely, allowing the thermostat and peripherals to remain relatively simple while achieving advanced diagnostic capabilities through the server's analytical functions.
2Loss of time
If technicians perform on-site diagnostic tests, then accurate fault diagnosis can be achieved, but time and travel costs increase
Solution Approach 1:
The system performs preliminary diagnostic actions by continuously monitoring HVAC peripheral data and automatically analyzing fault conditions before technicians arrive. The server pre-processes diagnostic information, identifies potential issues, and prepares analysis results in advance, reducing the need for extensive on-site testing and enabling technicians to arrive with predetermined diagnostic insights.
3Reliability
If continuous monitoring of operating parameters is implemented, then some faults can be predicted, but most faults still cannot be detected until they occur
Solution Approach 1:
The patent implements a feedback mechanism where the server continuously receives operational data from HVAC peripherals, analyzes the information against diagnostic criteria, and provides feedback about system health status. This closed-loop feedback system enables the detection of both predictable and unpredictable faults by comparing actual performance data with expected operational parameters and triggering alerts when anomalies are detected.
Data Source
AI summary
A system for remote diagnostic analysis of a heating, ventilation and air condition (HVAC) system is provided. The system includes a thermostat in operable communication with at least one peripheral component of the HVAC system and configured to receive information relating to the at least one peripheral component, and a server in operable communication with the thermostat for receiving and analyzing the information. The server causes the at least one peripheral component to conduct a diagnostic test and analyzes the test result to perform a root cause analysis of a system malfunction.