Wireless Commissioning Handoff for Networked Building Controllers
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Solution Overview
Problem
The labor-intensive and time-consuming process of commissioning and maintaining building controllers, which involves interacting with numerous devices, is error-prone and inefficient due to the need for manual interaction with each controller in a facility.
Innovation Solution
A portable handheld device is used to establish wireless connections with building control devices, allowing for seamless communication and control over a network, automatically switching to stronger connections as needed to maintain continuous commissioning and maintenance processes without restarting procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a technician manually interacts with each building controller individually, then each controller can be commissioned and maintained, but the process becomes labor-intensive and time-consuming
Solution Approach 1:
A portable handheld device serves as an intermediary between the technician and multiple building controllers. The device establishes wireless connections with controllers sequentially, allowing the technician to commission multiple controllers without physically moving to each one, thereby reducing time while maintaining reliable commissioning completion
Solution Approach 2:
The handheld device performs multiple functions: it can connect to different building controllers, maintain commissioning state, and switch between devices. This multi-functionality allows a single device to handle numerous controllers efficiently, reducing the time required compared to manual individual interaction
2Reliability
If a technician manually interacts with each building controller individually, then each controller can be commissioned and maintained, but the process becomes tedious and error-prone
Solution Approach 1:
The handheld device automatically manages wireless connections, pairing, and switching between building controllers without requiring manual reconfiguration. This self-service capability reduces operator burden and minimizes human error while ensuring reliable commissioning completion
Solution Approach 2:
The system provides feedback about connection status, signal strength, and commissioning progress. This feedback mechanism helps operators monitor the process and reduces errors by alerting them to potential issues before they affect commissioning completion
3Productivity
If the portable handheld device switches wireless connections between building control devices, then continuous monitoring and control is maintained, but connection switching complexity increases
Solution Approach 1:
The handheld device dynamically switches wireless connections based on signal strength and commissioning needs. This dynamic connection management maintains continuous monitoring and control (improving productivity) while the device's automated switching logic keeps the complexity manageable
Solution Approach 2:
The system performs preliminary actions by pre-establishing connection criteria and switching logic before actual commissioning begins. This preparation reduces runtime complexity while maintaining high productivity during the commissioning process
Data Source
AI summary
A portable handheld device pairs with a first building control device, to form a first wireless connection. The portable handheld device receives information about a second building control device via the first wireless connection, at least some of the information is received by the first building control device from the second building control device over a building control network before the first building control device provides at least some of the received information to the portable handheld device via the first wireless connection. The portable handheld device sends one or more messages to the first building control device via the first wireless connection, wherein the one or more messages cause the first building control device to communicate with the second building control device via the building control network to initiate a commissioning and/or maintenance process of the second building control device.