Autonomous Vehicle Radar Wave Interference Detection
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Solution Overview
Problem
Autonomous vehicles experience function impairment due to radio wave interference from multiple radar systems at intersections, affecting alert and warning systems, which can lead to safety risks.
Innovation Solution
A system comprising a receiver module with a control module that performs Fourier transformations on radar signals to detect wave interference, generating indications through vibration, LED, or auditory alerts, and broadcasting signals to remote systems to notify users or other vehicles of potential interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If multiple autonomous vehicles use radar systems at intersections, then the vehicles can detect surrounding environment and perform autonomous operations, but radio wave interference occurs between radar signals causing function impairment
Solution Approach 1:
The patent introduces an intermediary detection mechanism that monitors radar signal quality and detects interference conditions. This intermediary system acts as a mediator between the radar transmitter and the target object, identifying when interference occurs and triggering appropriate responses such as alerting the driver or adjusting radar operations, thereby resolving the contradiction between maintaining autonomous operation and ensuring reliable signal detection.
2Measurement precision
If radar signals are transmitted continuously for environment detection, then detection coverage is maintained, but wave interference increases when multiple vehicles are present
Solution Approach 1:
The patent implements periodic action by having the radar system transmit signals in controlled intervals rather than continuously, and by periodically monitoring for interference conditions. The system can adjust transmission timing based on detected interference patterns, using periodic detection of interference levels to determine when to transmit or pause radar signals, thereby maintaining detection accuracy while reducing cumulative interference.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively detects wave interference and provides alerts to prevent function impairment, enhancing safety by ensuring accurate operation of autonomous vehicle systems.
Implementation Method 1
The control module is configured to generate a Fourier transformation based on the at least one radar signal
Implementation Method 2
a radar system to detect the surrounding environment
Implementation Method 3
the radio waves transmitted and received by the radar systems of the multiple autonomous vehicles may be subjected to radio wave interference
Data Source
AI summary
Systems, methods, and apparatuses are provided and include a receiver module that is configured to receive at least one radar signal. A control module includes a processor that is configured to execute instruction stored in a nontransitory memory. The control module is configured to generate a Fourier transformation based on the at least one radar signal, and the control module is configured to determine a presence of wave interference based on the Fourier transformation. A primary indicator module is configured to, in response to the control module determining the presence of wave interference, generate an indication. The indication corresponds to the presence of wave interference.