Vehicle State Alerts via Personal Terminal for Secure User Notification
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Solution Overview
Problem
Existing vehicle state notification systems fail to securely and effectively notify users that their vehicle is not in a predetermined state, such as unlocked doors or lit lamps, when the user leaves the vehicle, leading to potential security and power consumption issues.
Innovation Solution
A vehicle state presentation system that includes a terminal device with an ear-mounted output unit capable of providing notifications through sound or vibration, and a vehicle equipped with a communication unit and controller that monitor the vehicle's state and transmit notification signals to the terminal device when the vehicle is not in the predetermined state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If notification is performed through sound from speaker or visual display in the vehicle, then the user can notice the vehicle state, but third parties can also perceive the notification which compromises security
Solution Approach 1:
The notification function is extracted from the vehicle and transferred to the user's mobile terminal device. The vehicle's notification unit sends notifications to the terminal device, which then displays them to the user. This separation ensures that only the authorized user receives the notification through their personal device, eliminating the security risk of public display in the vehicle while maintaining effective user notification.
2Loss of information
If notification is performed by call transmission or mail transmission to the mobile terminal, then the user can be notified, but the user is likely not to notice the notification
Solution Approach 1:
The notification system employs visual attention-grabbing mechanisms through color changes and animated displays on the terminal device. The notification display unit presents information in visually prominent forms that naturally attract user attention, such as colored indicators, flashing icons, or distinctive visual patterns, ensuring the user notices the notification rather than overlooking it as with standard call or mail transmissions.
3Loss of information
If the vehicle monitors and transmits notification signals continuously, then the vehicle state can be tracked, but energy consumption increases
Solution Approach 1:
The vehicle's notification unit transmits notification signals to the terminal device at periodic intervals rather than continuously. The system monitors vehicle state parameters and sends updates only when changes occur or at predetermined time intervals, reducing unnecessary continuous transmission while ensuring the user receives timely notifications about actual vehicle state changes.
Data Source
AI summary
A terminal device separate from a vehicle includes a receiver that receives a notification signal from the vehicle indicating that the vehicle is in a first state different from a second state, a notification unit that notifies a user of the terminal device of the first state based on the notification signal, an input unit that receives, from the user of the terminal device, an input commanding the first state to be maintained, and a transmitter that transmits a signal to the vehicle based on the input received by the input unit. The vehicle includes a control unit that performs control that maintains the first state after lapse of a predetermined time from a time that the notification unit of the terminal device notifies of the first state of the vehicle when a reception unit of the vehicle receives the signal transmitted from the transmitter within the predetermined time.