Vehicle Blind-Spot Alert Control Using Periodic Terminal Feedback
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Solution Overview
Problem
Existing systems face challenges in timely and efficient detection of pedestrians or movable objects within blind spots relative to vehicles, leading to delayed alerts and potential safety hazards due to the lack of effective communication and positioning information management.
Innovation Solution
A control apparatus integrated with sensors and communication functions in vehicles, which detects risk areas outside the line of sight using cameras and transmits alert information to terminals, including instructions for periodic response information transmission, allowing for timely determination of object positions and reducing unnecessary alert transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the control apparatus transmits alert information to all terminals in the risk area, then the coverage of safety alerts is improved, but the communication load and energy consumption increase
Solution Approach 1:
The control apparatus pre-calculates and stores position information of multiple terminals in the risk area before transmitting alert information. This preliminary preparation allows the system to efficiently manage communications by having terminal position data ready, reducing the need for continuous position queries and thereby lowering communication energy consumption while maintaining comprehensive alert coverage
Solution Approach 2:
The system implements a feedback mechanism where terminals periodically transmit response information containing their current position and alert reception status. The control apparatus uses this feedback to determine whether re-transmission of alert information is necessary, avoiding redundant communications and reducing energy consumption while ensuring all terminals in the risk area receive alerts
2Loss of time
If the control apparatus frequently transmits alert information to ensure timely detection, then the response time is improved, but the communication frequency and data transmission load increase
Solution Approach 1:
Instead of continuous or frequent transmissions, the system uses periodic action where terminals transmit response information at predetermined intervals. The control apparatus transmits alert information only when necessary based on received feedback, achieving timely detection while maintaining high communication efficiency by avoiding redundant frequent transmissions
Solution Approach 2:
Terminals autonomously determine their position and alert reception status, and self-initiate transmission of response information to the control apparatus. This self-service approach eliminates the need for the control apparatus to continuously query each terminal, reducing communication load while maintaining timely detection capability
3Measurement precision
If the system requires terminals to transmit response information at fixed intervals, then the position tracking accuracy is improved, but the energy consumption of terminals increases
Solution Approach 1:
Instead of requiring all terminals to transmit response information at fixed intervals, the system applies partial action by having terminals transmit only when their position changes or when alert reception status changes. This selective transmission maintains position tracking accuracy while significantly reducing terminal energy consumption compared to fixed interval transmissions from all terminals
Data Source
AI summary
A control apparatus includes a risk area specification unit to specify a risk area outside a movable object, a transmission control unit to perform control to transmit alert information related to a position of the risk area to an outside of the movable object, a reception control unit to perform control to receive response information including information related to a position of another movable object that is response information to the alert information which is transmitted by the other movable object, and a control unit to execute control of the movable object based on position information of the risk area and the information related to the position of the other movable object which is acquired, in which the alert information includes information for controlling a mode related to a transmission cycle of the response information to be transmitted by the other movable object which has received the alert information.