Vehicle Motion Detection for Safer Stops
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Summary
Problems
Motorists often fail to make complete stops at traffic intersections, leading to 'rolling stops' and resulting in law enforcement challenges, as they may misjudge their vehicle's stop due to distractions or errors in judgment.
Innovation solutions
A vehicle-mounted alert device equipped with sensors to detect movement and an annunciator system that provides audible and visual alerts to the driver when the vehicle starts or comes to a complete stop, helping to ensure compliance with traffic laws.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If a sensor-based alert device is installed to detect vehicle motion and stop status, then measurement precision of vehicle motion state is improved, but device complexity increases
Why choose this principle:
The patent replaces complex mechanical motion detection systems with electronic sensors (accelerometers, Hall effect sensors) and electronic circuitry. The sensor module detects vehicle motion states electronically, and the control module processes signals electronically, eliminating the need for complex mechanical linkages and moving parts while achieving precise motion state detection.
Principle concept:
If a sensor-based alert device is installed to detect vehicle motion and stop status, then measurement precision of vehicle motion state is improved, but device complexity increases
Why choose this principle:
The alert device integrates multiple functions into a single compact unit: the sensor module detects both motion initiation and stop completion, the control module processes both types of events, and the annunciator provides both visual and audible alerts. This multi-functional integration reduces overall device complexity while maintaining measurement precision.
Application Domain
Data Source
AI summary:
A vehicle-mounted alert device equipped with sensors to detect movement and an annunciator system that provides audible and visual alerts to the driver when the vehicle starts or comes to a complete stop, helping to ensure compliance with traffic laws.
Abstract
An electronic device employed in vehicles, such as automobiles, to ascertain whether the vehicle has stopped at a stop point, such as a stop sign. The operation of the alert device is that it monitors the status of the vehicle's speed or wheel sensor (that it is outputting or not) and if a minimum pulse rate is present, then the vehicle is in motion. A further conclusion can be reasoned is that if there has been no pulse activity over a finite period of time that the vehicle is stopped. The alert device monitors a pulse derived voltage to determine that the vehicle has fully stopped. When the device has detected that the vehicle has come to a full stop an approximately one second tone or chime, and or a visual annunciation is generated and if enabled declare that the vehicle has come to a stop. The alert device also signals when vehicle motion initially occurs by a different tone and flash. The alert device automatically resets for the next stop or initial vehicle movement notification. The alert device facilitates compliance with the law.