BMS Device Integration via Protocol Transformation and Metadata Mapping
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Solution Overview
Problem
Building management systems (BMS) face challenges in seamlessly integrating third-party devices due to differences in network protocols and data exchange formats, limiting their ability to operate within established control systems.
Innovation Solution
A system and method that includes a device manager to discover third-party devices on a control network, populate templates with received data, and configure them to operate within the network by transforming data exchange formats, allowing devices to operate under different protocols such as BACnet/IP, BACnet/Ethernet, or BACnet/MSTP.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If third-party devices with different network protocols are integrated into the control system, then device compatibility and functionality are improved, but system complexity increases due to protocol transformation requirements
Solution Approach 1:
The patent introduces a protocol transformation layer that acts as an intermediary between third-party devices and the control system. This layer receives data from devices using various protocols (BACnet/IP, BACnet/Ethernet, BACnet/MSTP, Modbus, etc.), transforms it into a standardized internal format, and forwards it to the control system, thereby enabling device compatibility without directly increasing control system complexity
Solution Approach 2:
The system is segmented into distinct functional layers: device discovery module, protocol transformation module, and control system module. Each layer handles specific tasks independently, allowing the control system to remain simple while the transformation layer manages protocol diversity
2Ease of operation
If automatic device discovery and configuration is implemented, then ease of operation is improved, but processing time and system resources are consumed
Solution Approach 1:
The system performs preliminary device discovery and protocol identification automatically when a device is first connected. The device manager proactively scans the network, identifies third-party devices, determines their protocols, and configures transformation rules in advance, so that when the devices need to operate, the integration is already complete and no additional processing time is required
Solution Approach 2:
The device discovery and configuration process is automated and self-service oriented. The system automatically detects new devices, retrieves their capability information, determines appropriate protocols, and configures transformation parameters without requiring manual intervention, thereby improving ease of operation while the automation efficiently manages processing time
Data Source
AI summary
A system for updating a device in a building management system (BMS). The system includes a third-party device and a device manager of a control network. The device manager updates the third-party device and includes a processing circuit that determines that the third-party device has been discovered on the control network. The processing circuit further populates a template with a set of received data from the third-party device and maps the third-party device with control network based on the populated template of received data. The processing circuit further configures the third-party device to operate in the control network, wherein configuring the third-party device comprises transforming a data exchange format of the third-party device.