• Proceedings of the Korean Nuclear Society Conference
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• 2002.10a
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• pp.52-52
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• 2002

• International journal of advanced smart convergence
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• v.6 no.1
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• pp.44-49
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• 2017

In the modern technology era, it is possible to connect objects and the internet anytime and anywhere through IoT of hyper-connected society. Accordingly, a smart shopping cart was designed and realized by applying IoT. Therefore, this paper builds the IoT shopping cart system according to the trend of IoT environment.. When RFID is installed in the Arduino and the tagged item is inserted into the IoT shopping cart, the product information and price are displayed on the Arduino linked Raspberry Pi. We built a web server on the Raspberry Pi to handle this data, and built an App on the smartphone to implement the IoT shopping cart environment. Consumers can receive pricing and product information through smartphone apps through raspberry pie, can make quick calculations through smartphone, and provide various information to consumers through apps.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.7
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• pp.262-269
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• 2020

Recently, many attempts have been made to reduce the time required for payment in various shopping environments. In addition, for the Fourth Industrial Revolution era, artificial intelligence is advancing, and Internet of Things (IoT) devices are becoming more compact and cheaper. So, by integrating these two technologies, access to building an unmanned environment to save people time has become easier. In this paper, we propose a smart shopping cart system based on low-cost IoT equipment and deep-learning object-detection technology. The proposed smart cart system consists of a camera for real-time product detection, an ultrasonic sensor that acts as a trigger, a weight sensor to determine whether a product is put into or taken out of the shopping cart, an application for smartphones that provides a user interface for a virtual shopping cart, and a deep learning server where learned product data are stored. Communication between each module is through Transmission Control Protocol/Internet Protocol, a Hypertext Transmission Protocol network, a You Only Look Once darknet library, and an object detection system used by the server to recognize products. The user can check a list of items put into the smart cart via the smartphone app, and can automatically pay for them. The smart cart system proposed in this paper can be applied to unmanned stores with high cost-effectiveness.

• The Journal of the Korea institute of electronic communication sciences
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• v.17 no.5
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• pp.959-968
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• 2022

In this paper, we intend to develop a cart with the convenience of moving objects or items that are difficult to hold by the hand of the disabled and the elderly from outdoor activities to a moving location. Using GPS module, DC motor, Bluetooth module, magnetometer sensor, and Blynk application, the smart follow cart was programmed to accurately know the owner's location while following the cart. The values of latitude and longitude of the magnetometer sensor are set so that the correct leverage value can be obtained in the lead for fine adjustment of the start and stop angles so that the user's position can be freely detected. The above motor driver L298n was connected to the motor to drive the DC motor at a fine angle. A smart follow cart was implemented that receives location signals according to the direction of the owner by turning on/off the mobile phone app as a switching role by connecting the GPS through Bluetooth wireless communication using a smartphone.

• Proceedings of the Korean Society of Computer Information Conference
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• 2018.01a
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• pp.125-126
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• 2018

최근 대형마트 측에서는 계산대의 지연 시간 문제를 해결하기 위해 셀프 계산대라는 방식을 도입했지만 사용하는데 번거로운 점과 사용과정의 어려움을 느끼는 소비자들이 많아서 이 또한 근본적인 문제를 해결해주지 못하고 있는 실정이다. 본 논문은 이러한 문제점들을 해결하기 위해 자동화 계산이 가능한 스마트 카트를 제작하고자 한다. 스마트 카트를 도입함으로써 마트에서의 번거로운 과정과 대기시간의 지연으로 인해 생기는 소비자들의 불만을 해결해 주고자 한다. 또한 소비자의 빠른 순환으로 인해 마트의 이윤을 얻어 줄 수 있는 자동화 계산이 가능한 스마트 카트를 제작하고자 한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2020.01a
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• pp.161-162
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• 2020

기존의 카트는 마트를 이용하는 소비자들의 편의를 위해 스마트 카트를 고안하게 되었다. 기존에 대형 마트를 이용할 때 소비자들은 찾고 싶은 제품이 있으면 직접 찾아다니거나 매장에 있는 직원들에게 찾아가 원하는 제품을 물어봐야 하는 불편함이 있었고, 세일 품목 등 직접 알아봐야 하는 불편함이 있었다. 또한 계산을 할 때 줄을 서서 기다려야 하는 등 시간 또한 오래 걸리는 불편함이 있었다. 본 논문은 이러한 문제점들을 개선하고 보완하기 위해서 기존 카트에 검색기능과 자동계산이 가능한 프로그램을 장착한 '물품검색과 자동계산이 가능한 스마트카트' 기술을 제안한다. 소비자들이 쉽고 빠르게 제품을 찾을 수 있게 도움을 주고, 소비자들이 스마트 카트를 통해 원하는 물품을 검색하게 되면 해당 상품의 가격과 위치, 정보 등 여라 가지의 데이터를 제공하고, 스마트 카트에 바코드스캐너를 장착하여 소비자가 구매하고자 하는 물품들을 바코드 스캐너를 사용해 스캔하면 디스플레이에 현시점까지의 물품들의 총 가격을 합산 해줌으로써 소비자들이 더욱 효율적인 소비를 할 수 있게 도움을 준다.

• Proceedings of the Korea Information Processing Society Conference
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• 2021.11a
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• pp.1136-1139
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• 2021

쇼핑카트 부착 모듈형 로봇 'Cart-Rider'는 어드미턴스 제어를 통한 사용자의 힘 보조 기능, 딥러닝을 활용한 네비게이션 기능, GPS 를 활용한 도난 방지 기능을 제공하는 로봇으로 대형 마트에서 발생하는 안전사고 및 쇼핑카트 도난을 예방하는 동시에 사용자에게 편의성을 제공하는 로봇이다. 또한 여러 대를 겹쳐서 보관하는 기존의 카트 시스템을 유지하고 탈부착이 용이하도록 하드웨어를 제작하여 환경에 영향을 주지 않고 유지 및 보수가 용이하도록 제작했다.

• Journal of Korea Society of Digital Industry and Information Management
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• v.4 no.3
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• pp.115-126
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• 2008

This thesis is the research for methods to forecast of dynamic changes at retail stores in the ubiquitous era, and, through adopting RFID based technology, to minimize cost of operation of stores and bringing up better customer service. The core methods had been researched and studied are to build future-oriented stores by providing store system with better customer's convenience based on referring to case studies of future-oriented stores and efficient inventory management method enabling more profitable store, and adopting Smart Carts, Smart Shelf and e-POP and environment sensors as a method in order to provide more improved customer service.

• Journal of the Korea Society of Computer and Information
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• v.12 no.6
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• pp.201-206
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• 2007

Development of Information and Communication technology coming to activity of internet banking and electronic business, and smart card of medium is generalized prevailing for user authentication of electronic signature certificate management center with cyber cash, traffic card, exit and entrance card. In field that using public network, security of smart cart and privacy of card possessor's is very important. Point of smart card security is use safety for smart card by user authentication. Anonymous establishment for privacy protection and denial of service attack for availability is need to provision. In this paper, after analyze for Hwang-Li, Sun's, L-H-Y scheme, password identify element is a change of safety using one time password hash function. We proposed an efficient new smart card authentication protocol against anonymity and denial of service.

• Journal of the Korean Society of Costume
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• v.61 no.3
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• pp.111-121
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• 2011

This paper intends to improve caddies' vocational efficiency, to increase the quality of caddies' services for customers, and further, to widen the application of smart clothes by proposing prototypes of smart uniforms in which caddies' vocational characteristics are reflected. The smart uniforms proposed by this study were restricted to those for spring and fall seasons and three types for a jacket, a turtle neck shirt, pants, and a jumper were proposed. Each design was developed to contain functionality and aesthetic, and also to be transformed subject to weather or other conditions. In addition, the uniforms were designed to carry not only a two-way radio and a remote controller for a cart that caddies necessarily carry, but also i-Pod, a distance meter, and other digital tools by use of solar cells. That is, this paper proposed the designs that can meet with caddies' vocational characteristics and different conditions. This paper is regarded meaningful in that smart clothes, which are forecasted as a future high value-added business, are applied to the uniforms of various job types so they can expand me existing functions of uniforms and further, think about the ways of being used for higher value-added products through the fusion with technologies.