Wireless Network VRU Detection and Selective Warning Transmission
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Solution Overview
Problem
Current wireless communication networks face challenges in accurately detecting Vulnerable Road Users (VRUs) and efficiently transmitting warning messages, leading to potential collisions, as existing methods often result in unnecessary warnings being sent to non-vulnerable road users.
Innovation Solution
A method and apparatus that determine whether a mobile terminal is a VRU by analyzing its status information, including location, speed, and connectivity with a vehicle, and transmit warning messages only when a potential collision is detected, thereby reducing false alerts and improving collision prediction accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If warning messages are transmitted to all mobile terminals in the network, then road safety coverage is improved, but network traffic and false alerts increase
Solution Approach 1:
The patent applies local quality by differentiating treatment based on mobile terminal type. VRUs receive warning messages while non-VRUs do not. The network unit determines VRU status based on device characteristics and transmits warnings selectively, making the warning system's behavior quality-dependent on the target device rather than uniform across all devices.
Solution Approach 2:
The patent segments mobile terminals into distinct categories: VRUs and non-VRUs. This segmentation is based on device type determination performed by the network unit, which then applies different warning transmission policies to each segment, avoiding unnecessary warnings to non-VRUs while maintaining comprehensive coverage for actual vulnerable users.
2Measurement precision
If VRU detection accuracy is improved by analyzing multiple status parameters, then false alerts are reduced, but system complexity increases
Solution Approach 1:
The network unit performs multiple functions using a single determination mechanism: it identifies device type (VRU vs non-VRU), assesses collision risk, and controls warning transmission. This multi-functionality approach consolidates what could be separate complex systems into one integrated unit that handles status determination, risk assessment, and warning management.
Solution Approach 2:
The system uses readily available status information from mobile terminals (location, speed, device type) without requiring additional specialized sensors or complex external verification systems. The network unit self-sufficiently determines VRU status and collision risk using data already present in the communication network, avoiding the need for separate detection infrastructure.
Data Source
AI summary
According to an example aspect of the present invention, there is provided a method comprising determining that a first mobile terminal is a personal device, receiving, from the first mobile terminal, information about a status of the first mobile terminal, determining whether the first mobile terminal is a Vulnerable Road User, VRU, with respect to a vehicle based at least partly on the received information about the status of the first mobile terminal, detecting a potential collision between the first mobile terminal and the vehicle when the first mobile terminal is determined as a VRU and transmitting at least one warning message to the first mobile terminal in case that the first mobile terminal is determined as a VRU and the potential collision is detected.