Vehicle Voice Command Sequence Control via Semantic Frame Analysis
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Solution Overview
Problem
Current speech recognition devices in vehicles often require manual input when multiple operations are commanded, as they execute commands in the order received without considering relationships between operations, leading to driver distraction and safety risks.
Innovation Solution
A user input processing apparatus for vehicles that recognizes semantic frames from user voice inputs, generates operation commands, determines execution sequences, and controls command execution based on relationships and executability, canceling or altering commands as necessary to ensure safe and logical operation execution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If speech recognition devices execute voice commands in the order received, then the device complexity is reduced, but the reliability of operation execution deteriorates because relationships between operations are not considered
Solution Approach 1:
The system performs preliminary analysis of the relationship between multiple voice commands before execution. The relation determination unit analyzes whether commands are related (e.g., navigation command followed by climate control command) and determines the appropriate execution sequence in advance, ensuring reliable operation execution while maintaining simple device architecture.
2Reliability
If the system analyzes relationships between multiple operations, then the reliability of operation execution is improved, but the device complexity increases due to additional processing units
Solution Approach 1:
The controller performs multiple functions including command reception, relationship determination, sequence determination, and execution control within a single integrated unit. This multi-functionality approach improves operation execution reliability through comprehensive analysis while avoiding the need for separate dedicated processing units for each function.
3Productivity
If manual input is required for multiple operations, then the ease of operation deteriorates, but the productivity is improved by ensuring correct operation sequence
Solution Approach 1:
The system automatically determines the execution sequence of multiple voice commands by analyzing their relationships, without requiring manual user input for sequencing. The controller autonomously identifies related commands (e.g., turning on AC before setting temperature) and executes them in the correct order, improving both convenience and efficiency.
4Ease of operation
If voice commands are processed without considering operation relationships, then the ease of operation is improved, but the reliability deteriorates leading to unsafe or illogical operation sequences
Solution Approach 1:
The system provides feedback to the user about the determined execution sequence of voice commands. The controller determines the sequence based on command relationships and can communicate this sequence back to the user, allowing verification and correction if needed, thereby maintaining ease of voice operation while ensuring safe and logical execution sequences.
Data Source
AI summary
A user input processing apparatus for a vehicle includes: an operation command generator recognizing a first semantic frame from a user voice, generating a first operation command based on the recognized first semantic frame, recognizing a second semantic frame from the user voice, and generating a second operation command based on the recognized second semantic frame; a sequence determination unit generating an execution sequence of the first operation command and the second operation command; and a controller controlling an execution of the first operation command and the second operation command based on the generated execution sequence and a relation between the first operation command and the second operation command.