Dual Voice Recognition Vehicle Control With Clear User Feedback
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Solution Overview
Problem
Existing vehicle control systems face issues when a portable device and a vehicle on-board device perform voice recognition simultaneously, leading to uncomfortable user feedback due to unsupported commands and unclear operation states.
Innovation Solution
A vehicle control system with a portable terminal and a vehicle on-board device that utilize dual voice recognition units, where the portable terminal specifies vehicle control and provides notification based on the operation state of the on-board device's voice recognition unit, ensuring appropriate feedback and control execution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the portable terminal performs voice recognition independently, then the user can control the vehicle using the portable terminal, but the user receives uncomfortable feedback when the command is not supported at the portable terminal side
Solution Approach 1:
The notification unit provides feedback to the user about the operation state of the vehicle on-board device's voice recognition unit. When the portable terminal cannot specify control from the recognized voice, it notifies the user about whether the vehicle on-board device is operating, transforming the harmful unsupported command feedback into useful information about alternative system availability
Solution Approach 2:
The notification unit acts as an intermediary that mediates between the portable terminal's voice recognition failure and the user. Instead of directly presenting the unsupported command error, it provides indirect information about the vehicle on-board device's operational state, allowing the user to understand that another system may handle the command
2Adaptability or versatility
If both portable terminal and vehicle on-board device perform voice recognition simultaneously, then more voice commands can be recognized, but it becomes unclear which device is actually operating
Solution Approach 1:
The notification unit provides real-time feedback to the user about the operation state of the vehicle on-board device's voice recognition unit. This feedback mechanism resolves the information loss by making the operational status of each system transparent to the user, allowing them to understand which system is active or available
Data Source
AI summary
A vehicle control system includes a portable terminal and a vehicle on-board device that carries out wireless communication with the portable terminal. The vehicle on-board device includes a first voice recognition unit that recognizes a voice and a control unit that executes control of a vehicle according to the voice recognized at the first voice recognition unit. The portable terminal includes a second voice recognition unit that recognizes a voice, a specification unit that specifies control of the vehicle according to the voice recognized at the second voice recognition unit, an instruction unit that instructs the control unit to execute the specified control of the vehicle, and a notification unit that, in a case in which the control of the vehicle according to the voice recognized at the second voice recognition unit cannot be specified at the specification unit, performs notification according to at least an operation state of the first voice recognition unit.