Vehicle Information Control Unit for Traffic Signal Alerts
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Solution Overview
Problem
Existing information providing devices for movable bodies, such as vehicles, fail to accurately provide recommended stopping information based on traffic signals, leading to potential irritation for occupants due to repetitive notifications.
Innovation Solution
An information providing device equipped with external environment sensors, a travel state determination unit, and an information providing control unit that initiates and terminates the provision of recommended stopping information based on specific conditions, including traffic signal indications and vehicle speed, while restricting re-provision of this information once the occupant is likely aware of the traffic signal status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If recommended stopping information is continuously provided based on traffic signal conditions, then the information accuracy is improved, but the occupancy comfort deteriorates due to repetitive notifications
Solution Approach 1:
The system implements periodic action by restricting re-provision of recommended stopping information after it has been provided once for the same traffic signal condition. The information providing control unit prevents repetitive notifications by checking whether the provision starting condition has been previously satisfied, thereby eliminating continuous redundant alerts while maintaining accurate information delivery when needed.
2Reliability
If recommended stopping information is provided frequently to ensure accuracy, then the information reliability is improved, but the loss of time increases due to repetitive processing
Solution Approach 1:
The system applies discarding and recovering by discarding the function of re-providing recommended stopping information when the provision starting condition is satisfied again after termination. The information providing control unit determines that re-provision is unnecessary in such cases, thereby eliminating redundant processing time while maintaining reliable information delivery for new or changed conditions.
3Loss of information
If the information providing system continuously monitors and re-provides information, then the information completeness is improved, but the device complexity increases
Solution Approach 1:
The system implements preliminary action by establishing a restriction mechanism in advance that prevents re-provision of recommended stopping information under specific conditions. The information providing control unit is configured to determine beforehand when re-provision should be restricted, thereby simplifying the control logic while ensuring information completeness is maintained for new conditions without redundant re-provisioning.
Data Source
AI summary
An information providing device is equipped with an information providing control unit that, in the case that a provision starting condition for starting to provide recommended stopping information is satisfied by a current indication of a traffic signal and a travel state, initiates the provision of the recommended stopping information, whereas in the case that a provision termination condition for stopping to provide the recommended stopping information is satisfied, terminates the provision of the recommended stopping information. After the provision of the recommended stopping information is initiated by having satisfied the provision starting condition, in the case that the provision of the recommended stopping information is terminated by having satisfied the provision termination condition, and further thereafter, the provision starting condition is satisfied again, the information providing control unit restricts re-providing of the recommended stopping information.