Radar Detector Interface for Collision Avoidance Interference
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Solution Overview
Problem
Collision avoidance systems interfere with radar detectors by transmitting signals on the same frequency band, causing false alerts and constant interference, even when not in use by the driver.
Innovation Solution
A collision and radar interface system that monitors internal information from both systems, selectively turns off collision avoidance sensors and radar detector alerts, and uses threshold filtering to differentiate between police radar and collision avoidance system signals, allowing the radar detector to function without interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the collision avoidance system transmits radar signals to monitor proximity, then collision detection capability is improved, but false alerts from radar detector increase
Solution Approach 1:
The patent introduces an intermediary system that receives signals from both the collision avoidance system and radar detector, analyzes their interaction, and generates conditional alerts. This intermediary processing layer distinguishes between genuine external radar threats and internal collision avoidance signals, eliminating false alerts while preserving true threat detection.
Solution Approach 2:
The system implements feedback by monitoring the operational state of the collision avoidance system and using this information to modulate the radar detector's alert generation. When the collision avoidance system is active, the feedback mechanism suppresses corresponding false alerts, dynamically adjusting system behavior based on real-time operational conditions.
2Duration of action of stationary object
If the collision avoidance system continuously transmits signals, then monitoring coverage is improved, but interference with radar detector increases
Solution Approach 1:
The patent applies dynamics by making the radar detector's alert function conditional rather than static. The system continuously monitors collision avoidance system state and dynamically adjusts alert generation accordingly, enabling the radar detector to adapt its behavior based on real-time system conditions while maintaining continuous monitoring capability.
Solution Approach 2:
An intermediary control mechanism is introduced that sits between the collision avoidance system and radar detector alert output. This intermediary processes information from both systems and intelligently gates the alert generation, allowing continuous monitoring while blocking harmful interference signals from reaching the final output.
3Adaptability or versatility
If both collision avoidance system and radar detector operate simultaneously, then functional versatility is improved, but system confusion increases
Solution Approach 1:
The patent segments the alert generation process into distinct functional paths: one for genuine external radar threats and another for internal collision avoidance signals. By separating these information streams and applying different processing rules to each, the system maintains functional versatility while preventing information confusion through structured signal differentiation.
Data Source
AI summary
An interface system of the present invention interconnects with a collision avoidance system and a radar detector. The interface system monitors and determines when sensors, from the collision avoidance system, are not required and selectively turns them off, thereby eliminating interference from the sensor and allowing the radar detector to work properly. The interface system also acts as a filter which enables and disables the audible and visual alerts of the radar detector and selects when to turn these filters on and off.