Smart Belt Hands-Free Navigation via Road Surface Projection
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Solution Overview
Problem
Conventional navigation devices such as mobile phones, flashlight navigation, and car navigation are not convenient or suitable for walking users, as they require hand-held operation and do not allow for hands-free navigation.
Innovation Solution
A smart belt equipped with a GPS positioning mechanism, a rotatable direction indication mechanism, a drive mechanism, a light source, and a voice output mechanism, which projects the traveling direction onto the road surface and provides voice guidance, allowing users to navigate hands-free.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If mobile phone navigation or flashlight navigation is used, then navigation function is provided, but user's hands are occupied and convenience is reduced
Solution Approach 1:
The patent combines GPS positioning, direction indication, and light projection functions into a single integrated belt device. The GPS module, direction indication mechanism with pointer, and light source are merged into one wearable unit, eliminating the need for separate handheld devices and enabling hands-free operation.
Solution Approach 2:
The smart belt serves multiple functions: GPS positioning to determine location and route, direction indication to show traveling direction, and light projection to display directional information on the ground. This multi-functional integration allows the device to provide complete navigation capability while being worn on the body.
2Adaptability or versatility
If car navigation is used, then navigation function is provided, but it is not suitable for walking users
Solution Approach 1:
The navigation system is segmented from traditional car-based infrastructure and handheld devices, and reconfigured as a compact wearable belt. This segmentation allows the navigation function to be portable and adaptable to walking users, while maintaining all essential navigation capabilities through integrated sensors and display mechanisms.
3Measurement precision
If direction indication mechanism is made rotatable, then accurate direction display is achieved, but device complexity increases
Solution Approach 1:
The patent replaces complex mechanical drive mechanisms with electromagnetic actuation. The motor drives the link gear and drive gear to rotate the direction indication mechanism, using electromagnetic conversion instead of purely mechanical systems, thereby reducing overall device complexity while maintaining rotational precision for accurate direction display.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances portability and convenience by displaying navigation directions intuitively and safely on the road surface, freeing users' hands and improving navigation usability.
Implementation Method 1
a light source for projecting the traveling direction indicated by the direction indication mechanism onto the road surface
Implementation Method 2
a motor that controls the drive gear to rotate
Data Source
AI summary
The present disclosure relates to a smart belt including: a belt body; a belt buckle provided on the belt body; a GPS positioning mechanism for generating a traveling direction; and a rotatable direction indication mechanism for indicating the traveling direction; a drive mechanism for driving the direction indication mechanism to rotate to indicate the traveling direction according to the traveling direction given by the GPS positioning mechanism; and a light source used to project the traveling direction indicated by the direction indication mechanism onto the road surface. The beneficial effects of the present disclosure are: users' hands can be freed and the portability and convenience of navigation usage can be improved.