HVAC Electrical Component Identification Using Parameter Fingerprints
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Solution Overview
Problem
Existing control systems for electrical devices coupled to HVAC systems struggle to identify and adapt to the unique internal parameters of electrical devices from different manufacturers, leading to suboptimal operation and increased costs due to the need for additional sensors.
Innovation Solution
An automated identification system that includes an identification unit associated with the electrical device, generating identification information representing electrical parameters, and a controller that processes this information to determine the device type and optimal operating parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If specific sensors are employed within the electrical device to record and evaluate internal parameters, then the control system can identify device specifications, but manufacturing costs and installation space increase
Solution Approach 1:
The patent extracts the identification function from the electrical device itself and places it in an external control system. Instead of embedding sensors within the electrical device to detect internal parameters, the control system uses existing electrical connections to measure parameters like resistance, inductance, and time constants that uniquely identify the device type and manufacturer.
Solution Approach 2:
The patent introduces electrical parameters (resistance, inductance, time constants) as intermediaries to identify the electrical device. These parameters serve as mediators that can be measured through standard electrical connections without requiring direct physical sensors inside the device, thus reducing complexity while maintaining identification capability.
2Adaptability or versatility
If electrical devices from different manufacturers with varying internal parameters are used, then device versatility increases, but control system performance deteriorates due to parameter variations
Solution Approach 1:
The patent uses changes in electrical parameters (resistance, inductance, time constants) as fingerprints to identify different electrical devices from various manufacturers. By measuring these inherent electrical characteristics, the control system can automatically adapt to devices with varying internal parameters while maintaining reliable control performance.
Solution Approach 2:
The patent performs preliminary identification of the electrical device parameters during system initialization or commissioning. The control system measures the device's electrical characteristics in advance, stores this information, and uses it for subsequent control operations, ensuring reliable performance across different manufacturers' devices.
3Productivity
If new electrical devices with updated parameters are introduced, then system efficiency improves, but control system adaptability worsens when devices are replaced without parameter recognition
Solution Approach 1:
The patent implements a feedback mechanism where the control system continuously measures the electrical parameters of connected devices and uses this information to identify device type and adjust control strategies accordingly. This ensures that when new or replacement devices are introduced, the control system automatically adapts to their specific parameters, maintaining optimal efficiency.
Data Source
AI summary
Automated identification of electrical devices coupled to heating, ventilation, and air conditioning (HVAC) systems are disclosed. Embodiments may include a system having an identification unit, and a controller. The identification unit is associated with the electrical device. The identification unit is configured to generate an identification information representing at least one electrical parameter of the associated electrical device. The controller is electrically coupled to the electrical device. The controller is configured to determine a device type of the electrical device based on processing the identification information from the identification unit. The controller is configured to determine an operating parameter for the electrical device based, at least in part, on the determined device type.