HVAC Controller Voice Interaction via Duplex Server Connection
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Solution Overview
Problem
Existing building control systems lack efficient hands-free and eyes-free interaction methods, particularly for controlling HVAC systems, which can be inconvenient for users who are busy or unable to physically interact with traditional touch interfaces.
Innovation Solution
A building controller device equipped with a microphone and environmental sensors that establishes a duplex connection with a remote server upon identifying an audio trigger, enabling voice-controlled interaction through a voice interaction module for controlling building automation components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional touch interfaces are used for building control systems, then direct control capability is maintained, but user convenience deteriorates for busy or unable users who cannot physically interact with the interface
Solution Approach 1:
The patent replaces the mechanical touch interface interaction with a voice-based acoustic interaction system. The building controller includes a microphone to capture voice commands and a speaker to provide audio feedback, substituting the need for physical touch interaction with acoustic signal processing and voice recognition techniques.
Solution Approach 2:
The patent introduces a remote server as an intermediary between the user and the building control system. Voice commands are transmitted to the remote server for processing, and responses are relayed back through the building controller, enabling hands-free operation while maintaining system control capabilities.
2Ease of operation
If voice control is implemented without duplex connection, then hands-free operation is achieved, but real-time interactive feedback capability is lost
Solution Approach 1:
The patent implements a feedback mechanism where the building controller receives voice commands from the user, processes them (or forwards them to a remote server), and provides audio feedback through a speaker. This closed-loop feedback system ensures that users receive real-time confirmation and information while maintaining hands-free operation.
Solution Approach 2:
The patent establishes a continuous duplex communication connection between the building controller and the remote server, allowing for ongoing voice-based interaction. The connection remains active during the interaction session, enabling continuous exchange of commands and feedback without interruption or loss of information.
Data Source
AI summary
An HVAC controller may be controlled in response to a natural language audio message that is not recognizable by the HVAC controller as a command, where the natural language audio message is translated into a command recognizable by the HVAC controller. Voice recognition software identifies a trigger phrase included in the natural language audio message and in response the HVAC controller performs an action. In response to identifying a trigger phrase at the HVAC controller, the HVAC controller may establish a single duplex connection with a remote server having a voice interaction module. An end user may then have a continuous dialog with the voice interaction module via the HVAC controller over the established single duplex connection. The voice interaction module may allow for an end user to interrupt the dialog at any time, as desired.