Vehicle Navigation System Using Mobile Turn-by-Turn Guidance
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Solution Overview
Problem
Vehicles without built-in navigation hardware rely on mobile devices for navigation, but existing solutions lack efficient methods to integrate navigation data and instructions from mobile devices into vehicle-mounted systems, limiting effective navigation assistance.
Innovation Solution
A vehicle-mounted system that establishes communication with a mobile device to receive Turn-by-Turn navigation guidance instructions, processes navigation image and audio data, and presents selected guidance logos and sound files on a display, utilizing vector image data and text-to-speech methods to provide comprehensive navigation information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a vehicle lacks built-in navigation hardware, then the vehicle can be manufactured with fewer components and lower cost, but the vehicle cannot provide navigation assistance to drivers
Solution Approach 1:
The patent introduces a mobile device as an intermediary component that provides navigation functionality. The mobile device acts as a mediator between the driver's navigation needs and the vehicle's limited hardware capabilities, enabling navigation assistance without requiring built-in navigation hardware in the vehicle itself.
Solution Approach 2:
The patent makes the vehicle-mounted display system multi-functional by enabling it to display both vehicle-related information and navigation information from mobile devices. This allows the same hardware infrastructure to serve multiple purposes: native vehicle functions and external navigation assistance, eliminating the need for dedicated navigation hardware.
2Productivity
If navigation data is directly displayed from mobile device, then navigation information can be shown, but the integration with vehicle-mounted systems is inefficient and lacks optimization
Solution Approach 1:
The patent segments the navigation system into distinct functional modules: mobile device for navigation calculation, communication interface for data transmission, vehicle-mounted display for presentation, and audio output for guidance. This modular segmentation allows each component to perform its specialized function efficiently while maintaining simple integration through standardized interfaces.
Solution Approach 2:
The patent creates a simplified copy of navigation information suitable for vehicle display by processing and adapting mobile device navigation data. The system copies essential navigation elements (turn directions, distance, maneuver names) and formats them for optimal presentation on vehicle-mounted displays, rather than directly transmitting raw navigation data.
3Ease of operation
If Turn-by-Turn navigation guidance is implemented with selected guidance logos, then navigation instructions become clear and concise, but the system requires processing and selection logic for different maneuver types
Solution Approach 1:
The patent implements preliminary action by pre-storing multiple guidance logos in the vehicle-mounted system's memory, each corresponding to different maneuver types (left turn, right turn, straight ahead, etc.). This preliminary preparation eliminates the need for complex real-time logo generation or selection algorithms, as the system simply retrieves the appropriate pre-prepared logo based on the navigation instructions received from the mobile device.
Data Source
AI summary
Navigation method and system are provided. The navigation method may include: a vehicle mounted system, which includes a storage device and a display, receiving a Turn-by-Turn navigation guidance instruction from a mobile device which has a navigation program running thereon; the vehicle mounted system selecting at least one guidance logo, stored in the storage device, according to the received Turn-by-Turn navigation guidance instruction; and the vehicle mounted system presenting on the display the at least one selected guidance logo. More vehicles can provide navigation with help of the mobile device.