Windshield Guide Object for Intuitive Vehicle Navigation
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Solution Overview
Problem
Navigational devices for vehicles often rely on symbolic optical and acoustic displays that can lead to linguistic misunderstandings and require drivers to convert instructions into actions, which can be confusing, especially for inexperienced drivers, and do not effectively integrate with real-time traffic situations.
Innovation Solution
A navigational device that uses a guide object, such as a virtual vehicle image, projected onto the windshield, to demonstrate driving maneuvers, allowing drivers to follow the object and eliminating the need for converting instructions into actions, while also providing real-time traffic awareness and speed adherence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If symbolic optical displays and acoustic instructions are used to guide drivers, then driving instructions can be provided, but linguistic misunderstandings occur and drivers must convert instructions into actions which is confusing especially for inexperienced drivers
Solution Approach 1:
The patent uses a guide object that is a visual copy or representation of a vehicle that drivers should follow. Instead of using symbolic arrows or text instructions that require interpretation, the system projects a realistic vehicle image that directly demonstrates the desired driving maneuver, eliminating linguistic ambiguity and making it intuitive for all drivers to understand what action to take.
Solution Approach 2:
The guide object serves as an intermediary between the navigation system and the driver. Rather than directly presenting symbolic instructions that require cognitive conversion, the system introduces a visual mediator (the guide object showing a vehicle's path) that bridges the gap between navigation data and driver understanding, making the intended action immediately apparent.
2Reliability
If the guide object is shown at a fixed distance in front of the vehicle, then drivers have time to react, but the guide object may not accurately reflect real-time traffic situations
Solution Approach 1:
The patent implements dynamic adjustment of the guide object's position and behavior based on real-time traffic conditions. The guide object's distance from the vehicle, its velocity, and its response to obstacles are continuously adjusted to match actual traffic situations, ensuring both accuracy in representation and adequate driver reaction time through adaptive positioning.
Solution Approach 2:
The system uses sensor data about real-time traffic conditions to provide feedback that adjusts the guide object's behavior. When obstacles or other vehicles are detected, the guide object's position and velocity are modified to reflect these conditions, creating a closed-loop system that maintains both accuracy and safety margins for driver response.
3Productivity
If the guide object velocity is increased to match vehicle velocity, then the guide object stays positioned in front of the driver, but the driver may be tempted to exceed speed limits
Solution Approach 1:
The patent applies preliminary anti-action by deliberately setting the guide object's velocity lower than the vehicle's actual velocity, even though this creates a growing distance between them. This intentional counter-intuitive approach prevents the guide object from inadvertently encouraging speed limit violations, while the system separately provides speed limit information to the driver through other display elements.
Data Source
AI summary
A navigational device for guiding a vehicle within a network of traffic routes provides, for guidance purposes, a guide object that is shown in relation to the traffic route in such a manner that the guide object's movement represents driving maneuvers to be performed by the driver. The driver emulates the driving maneuvers shown to him/her and thus follows the previously calculated route.