Modular Building Controller Architecture for Scalable I/O Mix
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing building management systems (BMS) face challenges with inflexible and costly input/output (I/O) interfaces, as field controllers and input output modules often have fixed point counts and types that do not align with specific system configurations or applications.
Innovation Solution
A modular controller device with a base comprising a processor and a base interface, allowing for the installation and removal of modules that provide the necessary I/O points. This modular architecture enables dynamic configuration of point counts and types, reducing redundant circuitry and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed point counts and types are provided on controllers or IOMs, then the system can support standard building management functions, but the cost of the controller or IOM increases
Solution Approach 1:
The controller is divided into a base unit and separate I/O modules. The base contains common functionality (processor, power supply, communication interfaces), while I/O modules provide specific input/output points. This segmentation allows the system to support multiple I/O configurations without requiring separate controllers for each configuration, reducing overall system cost while maintaining flexibility.
Solution Approach 2:
The base controller is designed with universal capabilities that can work with multiple types of I/O modules. The base includes standardized interfaces and a processor that can handle various I/O protocols and configurations. This multi-functionality allows a single base unit to support different building management applications by simply changing the I/O modules, eliminating the need for multiple specialized controllers.
2Adaptability or versatility
If multiple controllers or IOMs are added to obtain the right fixed point count, type and/or mix, then the appropriate I/O configuration is achieved, but redundant circuitry including power supply and communication interfaces is added
Solution Approach 1:
Multiple I/O modules are merged into a single controller system that shares common resources. The base controller consolidates power supply circuits, communication interfaces, and processing capabilities that would otherwise be duplicated in separate controllers. This merging eliminates redundant circuitry while maintaining the ability to provide the required I/O point count, type, and mix through modular assembly.
3Device complexity
If fixed point counts and types are provided on controllers or IOMs, then the system can operate with standardized hardware, but flexibility in configuring I/O points is reduced
Solution Approach 1:
The controller system transitions from static, fixed I/O configurations to dynamic, reconfigurable configurations. I/O modules can be added, removed, or swapped based on changing application requirements. The base controller dynamically adapts to different module configurations through automatic detection and configuration routines, providing both hardware standardization and configuration flexibility.
Data Source
AI summary
A device for use in a building management system (BMS) is a controller device. The device includes a base comprising a first processor and a base interface, the first processor being configure to provide control operations for a device in the building system, and a first module installable on and removable from the base. The first module includes a first module interface for receiving power from and communicating with the base via the base interface. In some embodiments, the device includes an optional a second module installable on and removable from the base, the second module comprising a second module interface for receiving power from and communicating with the base via the base interface.