Smart Cane with Ultrasonic and Camera Modules for Overhead Obstacle Detection
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Solution Overview
Problem
Current smart canes for visually impaired individuals lack real-time, dynamic, and adaptive feedback with AI integration, which limits their ability to provide precise navigation and obstacle detection, especially in urban settings with overhead obstructions.
Innovation Solution
A smart cane equipped with a linear main frame rod, ultrasonic sensors, a camera module, GPS, a vibration motor, and a microcontroller with AI integration, offering real-time obstacle detection, navigation assistance, and emergency messaging capabilities through a Bluetooth module and SOS system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional walking canes are used with basic tactile detection, then the device complexity is low, but the obstacle detection precision and reliability are insufficient especially for overhead obstructions
Solution Approach 1:
The patent combines multiple detection technologies (ultrasonic sensors, camera modules with computer vision, GPS) into a single integrated smart cane system. This merging approach enables comprehensive obstacle detection including overhead obstructions while maintaining manageable device complexity through unified hardware and software integration.
Solution Approach 2:
The smart cane is designed with multi-functional capabilities: ultrasonic sensors for proximity detection, camera modules for visual recognition and computer vision analysis, GPS for location tracking, and vibration motors for haptic feedback. This universal design allows the single device to perform multiple detection and assistance functions simultaneously.
2Reliability
If smart cane includes multiple sensors and AI integration for real-time feedback, then the navigation assistance and obstacle detection improve, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The smart cane system is divided into modular functional components: ultrasonic sensor module, camera module, GPS module, microcontroller unit, and feedback mechanism. Each module can be independently developed, tested, and manufactured, then integrated into the final product, thereby improving ease of manufacture while maintaining high navigation reliability.
Solution Approach 2:
The patent implements a nested structure where the linear extending rod is housed within the linear main frame rod, and electronic components are integrated within the handle assembly. This nested design consolidates multiple functions into compact arrangements, facilitating easier manufacturing and assembly processes.
3Strength
If the cane structure is made rigid and fixed length for stability, then the structural strength is high, but the adaptability to different user heights and environments is reduced
Solution Approach 1:
The patent incorporates a telescopic linear extending rod that can dynamically adjust its length within the main frame rod, allowing the cane height to be adapted to different user preferences and environmental conditions. This dynamic adjustment capability maintains structural strength while providing versatility for various users and situations.
Solution Approach 2:
The smart cane allows change in the physical parameter of cane length through the telescopic mechanism, enabling adaptation to different user heights and usage scenarios. This parameter adjustment maintains structural integrity while enhancing adaptability to user preferences and environmental requirements.
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 the safety and independence of visually impaired users by providing dynamic, adaptive, and real-time navigation assistance, enabling them to navigate complex environments with improved obstacle detection and emergency support.
Implementation Method 1
The smart cane includes an ultrasonic sensor configured to receive a first signal regarding an obstacle detected on a walking surface
Implementation Method 2
the vibration motor generates a vibration responsive to the second signal from the microcontroller, and the vibration indicates that obstacles are within a distance from the individual
Data Source
AI summary
A smart cane for an individual includes a linear main frame rod (LMFR), a linear extending rod (LER) slidably connected to the LMFR, a load-bearing feet coupled to the LER, a top case assembly having a pivot connected to an end of the LMFR, and a hand grip coupled to an outer side of the top case assembly. A casing box of the top case assembly is in the form of an irregular hexagonal cell having an axis of symmetry that is coaxial with an axis of the hand grip. Two longest sides of the irregular hexagonal cell are opposite one another and two shortest sides of the irregular hexagonal cell are of equal length and are opposite one another.