Vehicle Blind Zone Detection Using UWB Pedestrian Positioning
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Solution Overview
Problem
Drivers are unable to directly observe vehicle blind zones, leading to safety issues due to potential collisions with vehicles or pedestrians in these areas.
Innovation Solution
A vehicle blind zone detection method using ultra-wideband (UWB) or SparkLink/NearLink radio communication to establish communication with a pedestrian's device, detect their position, and adjust driving parameters based on this information to avoid accidents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional visual observation methods are used for blind zone detection, then the system complexity remains low, but the detection capability and safety are insufficient
Solution Approach 1:
The patent combines multiple detection technologies (UWB radio communication, SparkLink/NearLink communication, and visual analysis) into a unified blind zone detection system. The communication modules establish radio communication with pedestrian devices to obtain position information, which is then integrated with visual analysis results to achieve comprehensive detection coverage that overcomes the limitations of single-method approaches.
2Measurement precision
If continuous long-distance communication mode is used for pedestrian detection, then the detection precision and response time are improved, but the power consumption increases significantly
Solution Approach 1:
The patent implements dynamic mode switching for the communication device carried by pedestrians. The device can switch between low-power mode and long-distance communication mode based on detection needs. The vehicle's communication module establishes radio communication and determines positioning precision; when high precision is required, the pedestrian's communication device activates long-distance communication mode, otherwise it remains in low-power mode, thus adapting power consumption to actual detection requirements.
3Use of energy by moving object
If the communication device carried by pedestrian switches between low-power mode and long-distance communication mode, then the power consumption is optimized, but the response time may increase
Solution Approach 1:
The patent implements preliminary positioning using UWB or SparkLink/NearLink radio communication technology, which provides fast initial position acquisition. This preliminary action establishes a baseline position before mode switching occurs, so when the communication device needs to switch from low-power mode to long-distance communication mode, the system already has recent position data, reducing the overall response time penalty associated with mode transitions.
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
Enhances vehicle safety by accurately detecting pedestrians in blind zones, reducing the likelihood of accidents, and optimizing driving operations without relying on conventional visual analysis, while conserving power and lowering costs.
Implementation Method 1
establishing a radio communication with a communication device carried by a pedestrian based on an ultra-wideband (UWB) or SparkLink/NearLink radio communication technology
Data Source
AI summary
A vehicle blind zone detection method includes establishing a radio communication with a communication device carried by a pedestrian, detecting the pedestrian and obtaining position information of the pedestrian based on the radio communication, and operating a vehicle based on the position information of the pedestrian according to a driving environment. The communication device carried by the pedestrian is able to switch between a low-power mode and a long-distance communication mode.