In-Vehicle Voice Control With Device-Specific Confirmation Timing
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Solution Overview
Problem
Conventional voice recognition systems for onboard devices take a significant amount of time to execute a predetermined process after a user's voice command, leading to delays in device operation.
Innovation Solution
The system recognizes user voice commands to identify the target device and its operation content, then controls the timing of device activation based on the type of device, allowing for immediate operation without unnecessary user confirmation for non-driving-related devices and ensuring safety for driving-related devices by seeking user confirmation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the system outputs synthetic voice notification and waits for re-notification instruction before executing predetermined process, then user confirmation is obtained, but the time from user voice input to device operation becomes excessively long
Solution Approach 1:
The system segments devices into two categories: driving-related devices and non-driving-related devices. This segmentation allows different confirmation strategies to be applied to different device types, thereby reducing overall response time while maintaining safety for critical operations.
Solution Approach 2:
The confirmation mechanism dynamically adjusts based on device type. For non-driving-related devices, the system executes operations immediately without waiting for re-notification, while for driving-related devices, it maintains the confirmation workflow. This dynamic adaptation resolves the contradiction between speed and safety.
2Productivity
If the system executes predetermined process immediately after voice recognition without waiting for re-notification, then response time is shortened, but user confirmation and safety control are compromised
Solution Approach 1:
Different quality levels of confirmation are applied locally to different device types. Non-driving-related devices receive immediate execution (high productivity), while driving-related devices receive full confirmation protocols (high safety). This local differentiation resolves the universal contradiction between speed and safety.
3Reliability
If the system applies uniform confirmation protocol to all devices, then safety is maintained, but response time increases for non-critical operations
Solution Approach 1:
The system segments devices into driving-related and non-driving-related categories, applying different confirmation protocols to each segment. This allows non-critical operations to proceed quickly while maintaining safety protocols for critical operations, thereby improving overall system efficiency without compromising safety.
Solution Approach 2:
The confirmation requirement parameter changes based on device type. For non-driving-related devices, the confirmation parameter is set to false (immediate execution), while for driving-related devices, it is set to true (requires confirmation). This parameter adaptation optimizes both safety and efficiency.
Data Source
AI summary
A device control apparatus includes a detector which detects sound; and a controller which controls a plurality of devices. The plurality of devices includes a first device which is not related to operation of a vehicle and a second device which is related to the operation of the vehicle. The controller is configured to: recognize voice of a user by using data of the sound detected by the detector; identify a type of an operation target device from a plurality of the devices and operation content of the operation target device, based on the voice recognized; notify a user of start of activating the first device by the operation content identified and activate the first device by the operation content identified when the operation target identified is the first device; and notify the user to request a response before the controller activates the second device by the operation content identified when the operation target identified is the second device.