Building automation system controller
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current HVAC controllers face challenges in efficient commissioning and control of zoned systems, particularly in enrolling and managing multiple wireless devices across different zones within a building automation system, which affects the overall performance and user experience.
Innovation Solution
A building automation system controller with a user interface that operates in both operational and commissioning modes, allowing users to enroll wireless devices into specific zones, identify their locations, and control them using audible and visual indicators, while also providing status updates and enabling zone reconfiguration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the HVAC controller operates in commissioning mode to enroll multiple wireless devices into different zones, then the system functionality and adaptability are improved, but the operational complexity and time required for commissioning increase
Solution Approach 1:
The commissioning process is segmented into distinct phases: zone selection, device enrollment, and location identification. The controller transitions between different operational states (commissioning mode vs. operational mode) to manage complexity, allowing users to focus on one task at a time rather than managing all functions simultaneously.
Solution Approach 2:
The controller requires users to pre-select and designate zones before enrolling wireless devices. This preliminary action of zone configuration simplifies the subsequent device enrollment process, as devices are automatically assigned to the pre-defined zones rather than requiring complex real-time assignment decisions.
2Ease of operation
If the controller provides location identification for enrolled wireless devices using audible and visual indicators, then the ease of operation is improved, but the energy consumption increases
Solution Approach 1:
The audible and visual indicators are activated periodically or on-demand during the commissioning process rather than continuously. The controller sends commands to wireless devices to output indicators only when location identification is required, allowing indicators to remain dormant during normal operational modes to conserve energy.
Solution Approach 2:
The wireless devices themselves generate the audible and visual indicators in response to controller commands, rather than requiring the controller to continuously monitor and report device locations. This shifts the energy burden to individual devices that only activate indicators when needed for commissioning.
3Adaptability or versatility
If the controller accepts multiple inputs for zone designation and device enrollment, then the adaptability is improved, but the difficulty of detecting and measuring system state increases
Solution Approach 1:
The controller provides feedback to users through the user interface confirming zone selections and device enrollment status. This feedback mechanism helps users track the system state by visually confirming which zones are active and which devices are enrolled in each zone, reducing the cognitive burden of tracking multiple inputs.
Solution Approach 2:
Zones are pre-configured and designated before device enrollment begins. This preliminary structuring of the system state creates a clear framework that simplifies subsequent device assignment, as the controller only needs to match devices to existing zones rather than dynamically creating and managing zone structures during enrollment.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A building automation system controller may have an operational mode in which the controller provides operational instructions, and a commissioning mode in which a plurality of wireless devices can be enrolled. While in the commissioning mode, the controller is configured to accept a first input from a user via the user interface that designates a first zone of the plurality of zones and causes each of two or more first wireless devices that are subsequently placed in an enrollment mode by the user to be enrolled in the first zone, and to subsequently accept a second input from the user via the user interface that designates a second zone of the plurality of zones and causes each of two or more second wireless devices that are subsequently placed in an enrollment mode by the user to be enrolled in the second zone.