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sensor assisted smart white cane for blind man using Arduino UNO
- 1. Sensor Assisted Smart White Cane Implementation for Blind People. Presented By: Name: Abul Kalam Azad Roll No:1318030 Reg No:1331
- 2. Outline • Introduction • Conventional Model and Approach model • Block diagram • Components • Methodological overview • Implemented circuit • Uses and Advantages • Feature • Future Scope
- 3. Introduction • Presently, blind people use a white stick as a tool for directing them when they move or walk • Here , we develop a tool which can serve as a blind stick being more efficient and helpful than the conventional one. • This will assist the blind persons during the walk and provides an alarm if any hurdle is detected within the set range.
- 4. Conventional Model Proposed Model
- 6. Components Microcontroller Ultrasonic Sensor RF module RF Transmitter, RF Receiver Power Supply Alarm Components Buzzer, Vibrator Motor
- 8. Components RF Transmitter RF Receiver
- 9. Components Buzzer Vibrator Motor
- 12. Methodological overview It operates at a specific frequency of 433MHz. RF signals travel in the transmitter and receiver even when there is an obstruction. RF transmitter receives serial data and transmits to the receiver through an antenna which is connected to the 4th pin of the transmitter.
- 13. Methodological overview Buzzer It consists of piezo crystals between two conductors. When a potential is applied across these crystals they push on one conductor and pull on the other. This , push and pull action, results in a sound wave.
- 14. Methodological overview A vibrating motor is essentially a motor that is improperly balanced. In other words, there is an off-centered weight attached to the motors rotational shaft that cause the motor to wobble. The amount of wobble can be changed by the amount of weight attached , the weight distance from the shaft , and the speed at which the motor spins Vibrating motors can be found inside cell phones , pagers, gaming controller and personal massagers.
- 16. Uses and Advantages 1. Help blind people for obstacle detection. 2. To find out the Blind stick when it is placed out. 3. Help blind people to easily walk to destination. 4. Auto detection 5. Simple to use and low cost.
- 17. Future Scope It can be further enhanced by using global positioning system (GPS). And their current position and guidance to their destination will be given to the user by voice. It can also be further enhanced by using VLSI technology to design the PCB unit. This makes the system further more compact. Also, use of active RFID tags will transmit the location information automatically to the PCB unit, When the intelligent stick is in its range. The RFID sensor doesn’t have to read if explicitly.
- 18. Conclusion • The project proposed the design and architecture of a new concept of smart electronic guiding stick for blind people. The advantage of the system lies in the fact that it can prove to be very low cost solution to millions of blind person worldwide. • It can be further improved to have more decision taking capabilities by employing varied types of sensors and thus could be used for different applications . • It aims to solve the problems faces by the blind people in their daily life. The system also measures to ensure their safety.
- 19. Question