Roadside Infrastructure Wireless Navigation Guidance
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Solution Overview
Problem
Conventional GPS-guided navigation systems are unreliable in environments with multipath interference and satellite connectivity issues, and many vehicles lack built-in navigation capabilities, leading to difficulties in obtaining accurate navigation guidance while traveling.
Innovation Solution
A vehicle navigation system that uses a wireless network, such as Dedicated Short Range Communications (DSRC), to communicate with roadside infrastructure for providing navigation guidance through static maneuvers and directions, allowing drivers to navigate without relying on onboard navigation systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If GPS-based navigation systems are used, then navigation guidance can be obtained in open environments, but reliability deteriorates in urban canyons and areas with multipath interference
Solution Approach 1:
The patent introduces roadside infrastructure (roadside units) as an intermediary between the vehicle and the navigation system. These roadside units receive navigation requests from vehicles, calculate routes using local map data, and provide navigation guidance back to vehicles. This mediator approach bypasses the need for direct GPS satellite communication, thereby eliminating multipath interference and satellite connectivity issues that plague traditional GPS systems in urban environments.
2Ease of operation
If onboard navigation systems are integrated into vehicles, then navigation capability is available, but device complexity and cost increase for vehicles that do not require it
Solution Approach 1:
The patent enables vehicles to obtain navigation services from roadside infrastructure without requiring built-in navigation hardware or software. The roadside units perform all navigation functions including route calculation, map data storage, and guidance provision. Vehicles simply need a wireless communication transceiver to request and receive navigation information, dramatically reducing the complexity and cost burden on vehicles while maintaining full navigation capability availability.
3Adaptability or versatility
If personal navigation devices are used in vehicles without built-in navigation, then navigation guidance can be obtained, but the system lacks integration with vehicle systems and requires additional handheld equipment
Solution Approach 1:
The patent creates a universal navigation infrastructure that serves all vehicles regardless of whether they have built-in navigation capabilities. The roadside units provide navigation services to any vehicle equipped with a wireless transceiver, eliminating the need for personal navigation devices. The system is designed to be vehicle-agnostic, providing the same navigation functionality to all users through the shared roadside infrastructure, thereby reducing individual device requirements while maintaining broad adaptability.
Data Source
AI summary
Embodiments include a method for providing navigation guidance to a vehicle using roadside infrastructure communicatively coupled to a wireless network, the method comprising receiving, from a first vehicle, a request for navigation guidance to a destination; determining a first maneuver for navigating towards the destination from an initial location; and transmitting the first maneuver to the first vehicle. Embodiments also include a vehicle comprising a wireless transceiver for communicating with roadside infrastructure forming a wireless network, and a processor configured to: select a first unit included in the roadside infrastructure based on proximity to an initial location of the vehicle; send, to the first unit, a user-entered request for navigation guidance to a destination; and receive, from the first unit, a first maneuver for navigating towards the destination from the initial location.