Obstacle Alert Goggles with Vibration & Day/Night Mode

Advanced Ultrasonic Obstacle Detection Goggles for Enhanced Navigation

Introducing the Blind Assist Goggles, a flagship assistive technology device from Bigyan Project. Designed with the core mission of empowering visually impaired individuals, these smart goggles serve as a reliable guide for navigating everyday environments with newfound confidence and safety. This wearable device is not just a gadget; it is a meticulously engineered solution that enhances spatial awareness. By utilizing a sophisticated array of three HC-SR04 ultrasonic sensors, the goggles create a wide detection field, actively scanning for obstacles to the front, left, and right. When an object enters the detection range, the user is immediately notified through a dual-alert system: a clear audible signal from an active buzzer and a distinct haptic feedback from a vibration motor. A standout feature is the intelligent Day/Night mode, powered by a GL5516 LDR, which can be used to adjust alert sensitivity for different lighting conditions. The entire system is controlled by a dependable Arduino Nano R3 and powered by a high-capacity, rechargeable 18650 battery system with a modern Type-C charging interface. Crafted by বিজ্ঞান প্রজেক্ট, this device represents the perfect blend of practical engineering and compassionate design.

Product Specifications

Features

• Comprehensive 3-Way Obstacle Detection: Three strategically placed ultrasonic sensors provide a wide field of view, detecting obstacles not just in front but also on the left and right sides.
• Dual Alert System: Delivers both auditory alerts via a buzzer and tactile feedback through a vibration motor, ensuring the user never misses a warning.
• Intelligent Day/Night Mode: An integrated LDR sensor detects ambient light, allowing for potential automatic adjustments to make the device more comfortable to use in different environments.
• Long-Lasting and Rechargeable Power: Equipped with two 18650 Li-Ion batteries, offering extended usage time, and a modern Type-C charging board for convenient and fast recharging.
• Lightweight and Ergonomic Design: Built on a durable yet lightweight PVC frame, making it comfortable to wear for prolonged periods without causing fatigue.
• Reliable and Programmable Core: The Arduino Nano R3 at its heart ensures stable performance and offers expandability for tech enthusiasts who wish to customize its functions.

Applications / Use Cases

This versatile device is primarily designed as an assistive tool for visually impaired individuals to navigate indoor and outdoor spaces more safely. It is ideal for daily commutes, walking in crowded areas, or exploring unfamiliar locations. Additionally, it serves as an excellent educational tool for students and hobbyists interested in electronics, programming, and robotics. This product from Bigyan Project is also a great starting point for researchers and developers working on more advanced assistive technologies.

User Guide / How to Use

1. Charging: Before first use, fully charge the device using a standard Type-C cable. An indicator light on the charging board will show the charging status.
2. Wearing the Device: Place the goggles comfortably on your head. Ensure the sensors are facing forward and are unobstructed.
3. Power On: Locate the power switch and turn the device on. You should hear a short beep or feel a vibration indicating the system is active.
4. Navigation: As you walk, the device will automatically detect obstacles. A sound or vibration on the left indicates an obstacle to your left, a right-side alert for an obstacle to the right, and a central alert for an object directly in front.
5. Mode Check: Press the small push button to manually check the current mode (e.g., day or night), which may be indicated by a specific beep pattern.
6. Power Off: Turn the device off when not in use to conserve battery life.

Frequently Asked Questions (FAQs)

• Q: What is the maximum detection range of the sensors?
  A: The HC-SR04 ultrasonic sensors can reliably detect objects from a few centimeters up to approximately 4 meters, though the effective alert range is programmed for practical navigation distances.
• Q: Is the device waterproof?
  A: No, the goggles are not waterproof. It is an electronic device and should be protected from rain and moisture to prevent damage.
• Q: How long does the battery last on a full charge?
  A: With two 18650 batteries, the device is designed to last for several hours of continuous use, depending on the frequency of alerts.
• Q: Can I modify the programming or add new features?
  A: Yes! Since it is based on the Arduino Nano platform, users with programming knowledge can connect it to a computer and modify the code using the Arduino IDE to customize alerts, sensor range, and more.
• Q: Who created this device?
  A: This innovative tool is a product developed and assembled by বিজ্ঞান প্রজেক্ট (Bigyan Project), dedicated to creating practical science and technology solutions.

Challenges and Considerations

• This device is an assistive aid and not a replacement for traditional mobility tools like a white cane or a guide dog.
• Ultrasonic sensors may have difficulty detecting very thin objects (like poles), soft or angled surfaces that deflect sound waves, and drop-offs like stairs.
• Performance can be affected in environments with heavy rain or snow.
• A brief period of practice is recommended for the user to become fully accustomed to interpreting the alerts correctly.

Compatibility

• The charging system is compatible with standard 5V USB Type-C chargers and power banks.
• The Arduino Nano controller is compatible with Windows, macOS, and Linux for reprogramming via the Arduino IDE.
• The components use standard electronic connections, making them easy to repair or replace for those with technical skills.

Future Enhancement Options

• Integration of a GPS module for location tracking and navigation assistance.
• Addition of a Bluetooth module to connect with a smartphone app for advanced control and feedback.
• Upgrading to smaller, more power-efficient sensors for a sleeker design.
• Incorporating a voice synthesis module to provide spoken alerts and directions.
• Implementing machine learning algorithms to better distinguish between different types of obstacles.

Benefits

• Increases Independence: Empowers users to navigate their surroundings with less reliance on others.
• Enhances Safety: Provides timely warnings about potential hazards, reducing the risk of collisions and accidents.
• Boosts Confidence: The reliable feedback system helps users feel more secure and confident while moving around.
• Improves Situational Awareness: The 3-directional sensing offers a more complete understanding of the immediate environment.
• User-Friendly and Practical: Designed for ease of use with simple controls and a comfortable, wearable form factor.

Conclusion

The Blind Assist Goggles with Obstacle Alert is more than just a project; it's a step towards a more accessible world. By combining reliable sensors, intuitive alerts, and a user-centric design, this device offers a practical and affordable solution for enhancing mobility and safety. As a proud creation of Bigyan Project, it stands as a testament to how technology can be harnessed to make a meaningful difference in people's lives. Invest in safety, confidence, and independence today.

Keywords

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