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Development of a smart cane for the visually impaired

Description: In this work, the purpose is the design and improved of smart cane while investigating their performance in use. In this study, we determined the optimal range of the ultrasonic sensor on a smart cane. The determined optimal ranges are as follows: 10-100 centimeters for the ultrasonic sensor. According to the results of testing the distance of objects that the sensor can detect and process messages that do not exceed 0.050 seconds, within a distance of 10 - 50 centimeters, is the fastest response for the visually impaired. And can alert when an accident or fall is effective. There is a satisfaction rating of 3 (medium level) for comfort for the visually impaired. When using the stick, make sure that the sensor is not damaged by moisture, as this causes damage to some devices.

The development of a smart cane for the visually impaired as an aid to facilitate the daily life of the visually impaired, in order to reduce the problems caused by the use of white canes of traditional visually impaired people. Therefore, the inventor aims to design and develop a smart cane for the visually impaired that uses an ultrasonic sensor that works like an eye for the visually impaired by emitting sound waves at a frequency of 40 kilohertz when it encounters an object or obstacle. The sound wave is reflected back to the receiver, which processes it with the Arduino R3 board, which can calculate the distance between the obstacle and the sensor based on the travel time of the sound wave in the outward and return directions. When the ultrasonic sensor approaches the object, it is processed. It sends information to the buzzer, which emits a sound signal to indicate that there is an object in front of it. The connected GPS sensor works when the sensor is tilted. Accelerometer with notification in the system application line for the disabled in case of an accident by identifying the location of the cane user to help immediately. In this work, the purpose is the design and improved of smart cane while investigating their performance in use. In this study, we determined the optimal range of the ultrasonic sensor on a smart cane. The determined optimal ranges are as follows: 10-100 centimeters for the ultrasonic sensor. According to the results of testing the distance of objects that the sensor can detect and process messages that do not exceed 0.050 seconds, within a distance of 10 - 50 centimeters, is the fastest response for the visually impaired. And can alert when an accident or fall is effective. There is a satisfaction rating of 3 (medium level) for comfort for the visually impaired. When using the stick, make sure that the sensor is not damaged by moisture, as this causes damage to some devices.

Organisation: Saint Louis School Chachoengsao

Innovator(s): Apikit Tunsudjareonying, Phumiphat Mangkorndeshsakul, Thanatat Intisane, Angsuthorn Ngamprasit, Suphachai Thipyorlaeh, Prasobsuk Prachyakul

Category: Safety/Security/Protection

Country: Thailand

Silver Award