Detection and Identification of Things for Blind People Using Raspberry PI

Abstract

This work assists visually impaired persons with grocery shopping. The robot module (trolley) contains a Raspberry Pi, as well as an RFID reader, a headset, and motors. The person's speech (part where the person wants to go) is used as input, and this information is sent to the Raspberry Pi through Bluetooth. According to the specifications, the Raspberry will send a command to the driver IC, which will then drive the motors in the desired direction. All of the objects in the section will be RFID- tagged. The RFID scanner will detect (read) the tag whenever an item is picked and dropped into the cart. This will be relayed to Raspberry Pi, which will then send audio output (item name and price) to the person via headset. In addition, all things in the trolley are logged in the IOT and printed at the bill section. The Ultra-sonic sensor is also used to detect obstacles for the blind individual to move forward. Disability refers to a person's inability to fulfil their own desires without the help of others. One of an individual's limitations is visual impairment. Several solutions have been proposed to date to improve the quality of life for visually impaired and blind people. Purchasing groceries without the assistance of others is still a difficult task for them. The paper describes a device that helps them become aware of and purchase their products in the supermarket. RFID (radio frequency identification) reading technology is used. Based on the current time conditions, the audio orders will assist them in the grocery store. It uses obstacle detection to allow you to traverse the store without clashing with any 3- dimensional objects. The billing machine has been computerised to improve the food store. As a result, the existing grocery shop queueing system is eliminated. The device's final purpose is to eliminate other shopping aids for visually impaired persons and provide them with a convenient and complicated environment. When this technology is used, it makes purchasing easier for blind people, saves patron time, and increases business sales. And the cost of an IoT product is compared to the cost of a market product.