Controller for controlling a building component of a building management system
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Solution Overview
Problem
Inefficient energy management in buildings due to manual control of discrete air conditioner units, leading to energy wastage when units are not optimized for energy efficiency, especially in unoccupied spaces.
Innovation Solution
A building management system that includes a central coordinator and discrete air conditioner controllers, utilizing wireless interfaces and programmable schedules to automate the control of air conditioner units, integrating sensors for occupancy and temperature monitoring, and allowing for remote access and control to optimize energy usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual control of discrete air conditioner units is used, then ease of operation is improved, but energy efficiency deteriorates
Solution Approach 1:
The system enables air conditioner units to automatically adjust their operation based on occupancy detection and programmable schedules, eliminating the need for manual intervention while optimizing energy efficiency. The controller autonomously makes control decisions based on sensor inputs and pre-set parameters.
Solution Approach 2:
The system incorporates sensors that continuously monitor occupancy and environmental conditions, feeding this information back to the controller which then adjusts air conditioner operation accordingly. This closed-loop feedback mechanism ensures energy-efficient operation while maintaining comfort.
2Loss of energy
If automated control systems are implemented, then energy efficiency is improved, but device complexity increases
Solution Approach 1:
The control system is divided into independent modular components: discrete air conditioner units, separate controllers, and individual sensors. Each unit can be installed and configured independently, allowing the system to scale according to building needs without requiring complete system replacement.
Solution Approach 2:
The controller is designed to work with multiple types of building components and supports various communication protocols. It can manage different air conditioner models, integrate with various sensor types, and adapt to different building configurations, reducing overall system complexity through standardized interfaces.
3Ease of operation
If centralized control is used, then ease of operation is improved, but reliability deteriorates due to single point of failure
Solution Approach 1:
The control architecture distributes intelligence to individual air conditioner units, each with its own controller capable of autonomous operation. This segmentation eliminates the single point of failure problem inherent in centralized systems, as each unit can continue to function independently if the central coordinator fails.
Solution Approach 2:
The system combines centralized coordination capabilities with decentralized execution. The central coordinator manages high-level scheduling and coordination, while individual unit controllers handle real-time control decisions, creating a hybrid architecture that maintains both ease of operation and high reliability.
Data Source
AI summary
A controller unit for communicating with and controlling one or more discrete air conditioner units within a building is disclosed. In some instances, the discrete air conditioner controller may be configured to receive signals in a first signal format from a central coordinator and to transmit signals to the one or more discrete air conditioner units in a second signal format. The first signal format and second signal format may be different wireless formats. In some cases, the controller unit may store a programmable operating schedule, which may be updated via the central coordinator.