Hands-Free Apparatus Data Transfer Error Handling
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Solution Overview
Problem
Existing hands-free apparatuses in vehicles lack convenience in managing call history and phonebook data, particularly in maintaining data connectivity and security during Bluetooth communication.
Innovation Solution
A hands-free apparatus with a hardware processor and memory that connects wirelessly to a mobile phone, using protocols like HFP and PBAP to transfer call history and phonebook data, and displays error messages and reconnection screens when connections are lost, ensuring user instruction for reconnection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the hands-free apparatus automatically connects to the mobile phone to transfer history data and phonebook data, then the ease of operation is improved, but the reliability deteriorates when connection is disconnected during data reception
Solution Approach 1:
The system implements feedback by detecting connection status during data transfer and providing real-time status information to the user. When disconnection occurs during history data or phonebook data reception, the system displays an error message and reconnection screen, allowing users to understand the connection state and take appropriate actions to restore connectivity.
Solution Approach 2:
The system performs preliminary actions by establishing a connection to the mobile phone before data transfer begins. The hardware processor automatically connects to the mobile phone using a transfer protocol, ensuring that the connection is established in advance before receiving history data or phonebook data, thereby preventing connection issues during the transfer process.
2Reliability
If the hands-free apparatus maintains continuous connection with the mobile phone for data transfer, then the reliability is improved, but the loss of time increases when reconnection is required
Solution Approach 1:
The system implements self-service by automatically detecting connection status and initiating reconnection procedures without requiring manual user intervention. When disconnection occurs during data transfer, the system automatically displays the reconnection screen and waits for user input, then initiates the reconnection process automatically, reducing the time loss that would occur with manual intervention.
3Ease of operation
If the hands-free apparatus displays error messages and reconnection screens when connection is lost, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The system extracts the connection status information and error messages from the complex data transfer process. By separating the connection management functions from the data transfer functions, the system can display clear error messages and reconnection screens without increasing the overall device complexity. The connection status is extracted and presented to the user in a simplified manner.
Data Source
AI summary
A hands-free apparatus enables a hands-free call by being wirelessly connected to a mobile phone that stores therein history data including incoming call history data and outgoing call history data, and phonebook data. The hands-free apparatus is configured to: perform control of connecting to the mobile phone by a transfer protocol for transferring the history data and the phonebook data; receive the history data and the phonebook data from the mobile phone by the transfer protocol when the mobile phone is present in a wireless connection area; and display an error and display a reconnection screen for receiving an instruction for reconnection by the transfer protocol with the mobile phone from a user, on a display, when connection by the transfer protocol with the mobile phone is disconnected during reception of at least one of the history data and the phonebook data.