Anonymous V2V Warning Relay via DSRC and GPS
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Solution Overview
Problem
Current communication methods for driver-initiated warnings in vehicles are inadequate for quickly and efficiently disseminating anonymous location-dependent information without requiring extensive infrastructure or knowledge of vehicle identity, particularly in emergency situations where time is critical.
Innovation Solution
A driver-initiated vehicle-to-vehicle warning system using the DSRC protocol, which includes a driver input interface for describing events, a GPS for location determination, and a vehicle-to-vehicle communication component that broadcasts anonymous messages to nearby vehicles, allowing for relaying of warnings to expand the communication range without the need for dedicated infrastructure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If traditional communication methods (cell phones, CB radio) are used for driver warnings, then some form of communication is achieved, but the time required is excessively long and identity information is required
Solution Approach 1:
The patent introduces a dedicated infrastructure consisting of roadside units and a communication server as intermediaries between drivers and the warning dissemination system. This intermediary infrastructure enables automatic, anonymous broadcast warnings without requiring direct driver-to-driver communication, thereby reducing time loss and operational complexity
Solution Approach 2:
The patent replaces manual communication methods (cell phones, CB radio) with an automated electronic broadcast system using dedicated short-range communication technology. This substitution eliminates the need for drivers to manually operate communication devices and enables automatic warning dissemination to multiple vehicles simultaneously
2Ease of operation
If broadcast technologies are used for anonymous warnings, then identity information is not required, but time and bandwidth limitations still apply
Solution Approach 1:
The patent segments the warning communication into discrete broadcast messages that can be independently transmitted to multiple vehicles simultaneously. The warning information is divided into essential components (location, event type, urgency) that can be efficiently transmitted without requiring extensive bandwidth or time
Solution Approach 2:
The system performs preliminary actions by pre-configuring roadside units and communication servers to automatically receive and relay warning messages. This preliminary setup enables rapid warning dissemination without requiring real-time configuration or setup during emergency situations
3Reliability
If extensive dedicated infrastructure is used for communications, then communication reliability is improved, but device complexity and infrastructure cost increase
Solution Approach 1:
The patent designs the dedicated infrastructure components (roadside units, communication server) to serve multiple functions: receiving warnings from drivers, validating information, broadcasting to multiple vehicles, and managing communication protocols. This multi-functionality reduces the overall complexity compared to having separate specialized systems for each function
Data Source
AI summary
A driver-initiated warning device is described for communicating descriptive vehicle-to-vehicle warning messages. The device can be deployed within an automobile and can include an interface that receives input from a driver or passenger of a vehicle. The device also includes a vehicle-to-vehicle communications component that generates anonymous messages upon having received the input and broadcasts the anonymous messages to other vehicles within range. The anonymous messages have embedded electronic data regarding an event observed by the driver or passenger, such as location information of a road hazard. Based on receiving the messages, the device can make decisions as to whether to alert the driver of any upcoming dangers or other events. The location information contained in the messages can be used to filter the messages based on relevance. The messages can also be relayed to other vehicles in order to optimize information diffusion between moving automobiles.