Gateway-Based Equipment Data Continuity Across Controller Replacement

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Solution Overview

Problem

Small to medium-sized HVAC contractors face challenges in efficiently managing and interpreting the large amounts of data generated by building management systems, leading to inefficient alerting workflows and a need for a more streamlined and informative alerting system that can deliver timely and relevant notifications.

Innovation Solution

A lightweight alerting system that allows for customizable alerts, automatic data merging across controller replacements, and dynamic gateway poll rates to optimize data transmission, ensuring reliable analytics and efficient communication of equipment health and comfort status.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of repair

If controllers are replaced in HVAC equipment, then system maintenance and upgrades can be performed, but data continuity and logical identity of equipment operational data are lost

Engineering Contradiction:
Improvecontroller replaceabilityVSAvoidequipment operational data continuity
Core Design Contradiction:
Ease of repairVSLoss of information

Solution Approach 1:

The patent introduces a gateway as an intermediary component that mediates between the HVAC equipment controller and the data logging system. The gateway maintains equipment continuity by capturing controller data and preserving it with correct logical identity even when controllers are replaced, thus preventing data loss while allowing controller replacement.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system creates and maintains a copy of equipment operational data through the gateway, which stores data with persistent equipment identifiers. This copying mechanism ensures that when a controller is replaced, the historical data and its logical connection to the equipment are preserved in the gateway's storage, preventing information loss.

Inventive Principle:
Principle #26Copying

2Reliability

If data from multiple controllers is merged automatically, then data continuity is ensured, but system complexity increases

Engineering Contradiction:
Improvedata continuityVSAvoiddata merging automation
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The gateway serves as an intermediary that automatically merges data from multiple controllers. It handles the complexity of data consolidation, matching, and continuity maintenance internally, while presenting a simplified interface to users. The gateway's automatic equipment identification and data merging capabilities resolve the contradiction by automating the complex process.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system implements self-service through automatic equipment identification and data merging capabilities. When controllers are replaced or added, the gateway automatically detects them, matches them to existing equipment based on operational data patterns, and merges the data streams without requiring manual intervention, thus ensuring data continuity while minimizing user burden despite the underlying complexity.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS11566807B2System that retains continuity of equipment operational data upon replacement of controllers and components
Publication Date: 2023.01.31 HONEYWELL INTERNATIONAL INC
  • US11566807B2 patent drawing
  • US11566807B2 patent drawing
  • US11566807B2 patent drawing

AI summary

A program for light commercial building system (LCBS) solutions. Solutions and other systems may incorporate lightweight alerting service, auto-adjustment of gateway poll rates based on the needs of various consuming applications, detecting loss of space comfort control in a heating, ventilation and air conditioning (HVAC) system, HVAC capacity loss alerting using relative degree days and accumulated stage run time with operational equivalency checks, and HVAC alerting for loss of heat or cool capacity using delta temperature and dependent system properties. Also, incorporated may be triggering s subset of analytics by automatically inferring HVAC equipment details from controller configuration details, ensuring reliability of analytics by retaining logical continuity of HVAC equipment operational data even when controllers and other parts of the system are replaced, and an LCBS gateway with workflow and mechanisms to associate to a contractor account.