On-Vehicle Radar Blind Spot Detection via Self-Service Extraction
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Solution Overview
Problem
Existing vehicle safety systems rely on infrastructure-based sensors and cameras, which are costly to establish and limited in availability, failing to provide sufficient information about blind spots caused by preceding vehicles without roadside infrastructure and relying on other vehicles to be equipped with cameras and display devices.
Innovation Solution
An on-vehicle radar device with transmitting and receiving means, object sensing, target vehicle extraction, and blind spot object extraction capabilities, allowing for the detection of objects in blind spots without roadside infrastructure, using a FMCW radar and mechanical orientation to direct radar waves effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If infrastructure-based sensors and cameras are deployed to collect information, then information availability about blind spots is improved, but system cost and complexity increase significantly
Solution Approach 1:
The own vehicle's radar performs self-service by automatically detecting blind spot objects without requiring external infrastructure. The radar sweeps through blind spot areas and processes reflections from objects, enabling the vehicle to independently acquire blind spot information using its own sensing capabilities
Solution Approach 2:
The invention extracts only the necessary blind spot information from the overall radar detection data. By focusing specifically on blind spot areas and filtering relevant reflections, the system obtains critical safety information without requiring comprehensive infrastructure-based sensing
2Loss of information
If infrastructure-based sensors and communication devices are established, then information collection capability is improved, but implementation cost increases
Solution Approach 1:
The own vehicle's radar is designed to perform multiple functions: normal forward detection and blind spot detection. By making the radar multi-functional, the system eliminates the need for separate infrastructure-based sensors and achieves both functions using a single existing device
Solution Approach 2:
The vehicle uses its own radar resource to collect blind spot information, eliminating dependence on external infrastructure. This self-service approach removes the need for costly road-side sensors and communication devices while maintaining information collection capability
3Loss of information
If other vehicles are equipped with cameras and display devices to provide blind spot information, then information availability is improved, but system complexity and cost increase
Solution Approach 1:
Instead of relying on other vehicles to provide blind spot information, the own vehicle performs self-service by using its own radar to detect blind spot objects. This eliminates the need for inter-vehicle communication systems and external cameras
Solution Approach 2:
The invention inverts the traditional approach by having the own vehicle actively detect blind spot objects rather than passively receiving information from other vehicles. The radar sweeps through blind spot areas and directly identifies objects, reversing the information flow direction
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
Enables reliable acquisition of information about blind spot objects, improving driver awareness and vehicle control systems by providing critical data for adaptive cruise control and precrash safety without the need for roadside infrastructure, enhancing driving safety and reducing costs.
Implementation Method 1
a radar transceiver (12) which transmits and receives a radar wave
Implementation Method 2
The front radar (10) is an FMCW radar
Data Source
AI summary
A radar transceiver of an on-vehicle radar transmits and receives a radar wave. Objects ahead of a vehicle having the on-vehicle radar are sensed based on the reflected radar wave reflected from the objects. A target vehicle to be monitored is extracted from the sensed objects based on the reflected radar wave. Also, a blind spot object, which is present in a blind spot of the target vehicle is extracted from the sensed objects based on the reflected radar wave.