Vehicle Object Warning System with Distinct Auditory Alerts
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Solution Overview
Problem
Current motor vehicle object warning systems fail to differentiate between expected and unexpected objects, leading drivers to disregard warnings for unexpected objects in their path.
Innovation Solution
A vehicle object warning system that uses sensors and a controller to differentiate between expected and unexpected objects by storing object locations in memory and generating distinct warning signals based on matching or non-matching locations detected during triggering events.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single auditory warning tone is provided for all detected objects, then the warning system is simple and easy to operate, but the driver cannot differentiate between expected and unexpected objects leading to disregarded warnings
Solution Approach 1:
The patent segments the warning system into multiple distinct auditory warning tones - a first auditory warning tone for expected objects and a second auditory warning tone for unexpected objects. This segmentation allows the driver to differentiate between object types through sound alone, improving warning effectiveness without requiring complex visual displays or multiple sensor types.
Solution Approach 2:
The patent applies local quality by providing spatially differentiated warnings - the first auditory warning tone is output from a first speaker and the second auditory warning tone from a second speaker. This creates localized warning signals that help the driver quickly identify the direction and nature of detected objects, enhancing reliability while maintaining system simplicity.
2Reliability
If visual and auditory warnings are provided for all objects, then the driver receives comprehensive information, but the driver may disregard warnings when believing all objects are expected
Solution Approach 1:
Instead of using the same warning for all objects and hoping drivers pay attention, the patent inverts the approach by using different warning tones to convey different meanings. Unexpected objects trigger a distinct second auditory warning tone, making it impossible for drivers to dismiss all warnings as routine notifications about expected objects.
Solution Approach 2:
The patent uses auditory equivalent of color changes - different auditory warning tones serve as acoustic signals that immediately convey the nature of the detected object. Just as color changes provide quick visual differentiation, the first and second auditory warning tones provide immediate acoustic differentiation, enhancing driver awareness and response efficiency.
3Ease of manufacture
If the system provides warnings for all detected objects without differentiation, then the system is easy to manufacture and operate, but unexpected objects in the vehicle's path may be missed
Solution Approach 1:
The patent implements preliminary action by storing location information about objects in advance. The system compares newly detected objects against previously stored location data to determine whether an object is expected or unexpected. This preliminary comparison mechanism enables safety differentiation without requiring complex real-time analysis, maintaining ease of manufacture while improving reliability.
Data Source
AI summary
A vehicle object warning system and method that differentiates between expected and unexpected objects. A sensor detects a set of objects external to the vehicle upon the occurrence of different triggering conditions. A controller determines locations of the sets of objects detected by the sensor. Further, the controller can store the locations of a set of objects in a memory as well as determine if the location of an object is not stored in the memory. An alarm provides a different type of warning if the controller determines that the location of an object is not stored in the memory.