Indoor Voice Navigation Using QR Code Positioning
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Solution Overview
Problem
Conventional navigation systems rely on GPS, which is ineffective indoors, leading to inconvenience in finding specific locations within large indoor areas like exhibition centers, supermarkets, and multi-story parking lots, as they require extensive signage and often result in users getting lost.
Innovation Solution
An indoor voice navigation system for mobile devices that uses a processor and data storage to calculate and guide routes using a two-dimensional map, voice guidance, and QR codes at positioning locations, allowing users to input destinations and receive voice feedback on distances and directions, enabling accurate navigation within indoor environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If GPS is used for navigation, then outdoor positioning accuracy is improved, but indoor navigation capability deteriorates
Solution Approach 1:
The navigation system is segmented into outdoor mode (using GPS) and indoor mode (using visual markers). The system divides the navigation function based on environment, switching between GPS-based navigation outdoors and marker-based navigation indoors, thereby maintaining positioning accuracy while adapting to different environments.
Solution Approach 2:
Two-dimensional barcodes serve as intermediary objects between the user and the indoor navigation system. These barcodes are placed at key locations and act as mediators that enable the mobile device to determine position and orientation indoors, bridging the gap where GPS cannot function.
2Ease of operation
If extensive signage is established indoors, then navigation guidance is improved, but system complexity and cost increase
Solution Approach 1:
Instead of creating extensive physical signage systems, the patent uses two-dimensional barcode copies that can be easily reproduced and placed at key locations. These barcode copies contain navigation information and can be read by mobile devices, providing guidance without requiring complex signage infrastructure.
Solution Approach 2:
The two-dimensional barcodes serve multiple functions: they provide position identification, orientation guidance, and navigation routing information. This multi-functionality reduces the need for separate signage elements for each type of information, simplifying the overall system while maintaining ease of operation.
3Reliability
If users follow traditional indoor navigation, then destination finding is possible, but time consumption increases
Solution Approach 1:
The system provides real-time feedback to users through the mobile device, showing the current position, next target location, and navigation route. This immediate feedback allows users to quickly adjust their path and avoid getting lost, reducing navigation time while maintaining reliable destination finding.
Solution Approach 2:
The navigation system pre-calculates the optimal route and identifies key two-dimensional barcode locations before the user begins navigation. This preliminary action allows the user to follow a pre-planned path with clearly marked waypoints, eliminating the need for frequent decision-making and reducing overall navigation time.
Data Source
AI summary
An indoor voice navigation system and indoor voice navigation method are provided. An initial position and a target position is inputted to the indoor voice navigation system to generate an actual navigation path from the initial position to the target position, where the actual navigation path comprises at least one positioning location and each positioning location contains a two-dimensional barcode to describe its location information. The indoor voice navigation system is able to find a next positioning location in the actual navigation path and set the next positioning location as a new initial position repeatedly. And, in the way of finding the next positioning location, the indoor voice navigation system may suggest a direction and a distance by voice. With above technical features, the system and method may achieve the goal of navigating in the interior environment by lower cost.