• Journal of the Korea Institute of Information and Communication Engineering
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• v.20 no.11
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• pp.2143-2148
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• 2016

Recently due to development of IT technology, ideas and technology that blend with environment have evolved. This technology can help people's living environment and in the future it is an essential component of the connected society. In this paper, we propose WiT(WiFI Trashcan) which takes advantage of the IT technology fusion and environmental factors at the same time to create a more pleasant environment. WiT provides a free WiFi when trash is disposed in the trash can. WiT detects whether a user disposes trash, determines the volume of the trash and provides free WiFi. To detect trash we use ultrasonic sensor and trash weight is measured by using weight sensor. Also by using Phython programming the measured sensor value is transmitted to Raspberry Pie and WiFi delivery time is determined. We used Arduino and Raspberry Pi to design and implement WiT.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2016.10a
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• pp.270-273
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• 2016

Recently due to development of IT technology, ideas and technology that blends with environment has evolved. In this paper, we propose WiT(WiFI Trash-Can) which takes advantage of the IT technology fusion and environmental factors at the same time to create a more pleasant environment. WiT provides a free WiFi when disposing trash in the trash can. WiT which is synthetic name for WiFi and Trash-Can is a system that is provides free WiFi when people dispose litter to detect whether user had access and determined the volume of the trash disposed. WiT uses Arduino and Raspberry Pi to detect the amount of trash and provide WiFi output on the display to show the ability to design and implement the remaining amount of time available.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2022.05a
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• pp.112-114
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• 2022

This paper proposes an E-Commerce service that supports large quantities of food waste sales generated by collective residences, including apartments, to consumers in urban areas, such as livestock farmers, through online transactions. Unlike general E-Commerce, the proposed service uses a smart food waste bin equipped with an IoT-based sensor and communication module to automatically collect the location information of each apartment and the amount of food waste to be displayed in a specialized E-Commerce platform. The key of this system is to provide information and sell it to consumers. The smart food waste bin periodically delivers its current capacity and location using a weight sensor, GPS sensor and LoRa communication module to a cloud-based database to be used in web or mobile applications. The proposed E-Commerce service is expected to help resolve the food waste disposal problem and revitalize the local economy by linking with a service that delivers food waste from each apartment to a nearby location where the buyer is located.

• Proceedings of the Korean Society of Computer Information Conference
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• 2024.01a
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• pp.147-148
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• 2024

도시에서의 쓰레기 무단투기는 주민들의 삶의 질에 직접적인 영향을 미치는 중요한 사회 문제이다. 환경 및 공기 오염이 큰 문제로 나타나며, 시민들은 시각 및 후각적 불편을 겪는다. 무분별한 쓰레기 투기는 해충의 서식지가 되어 다양한 질병의 유발 가능성을 증가시키며, 정상적인 분리수거 시스템을 방해하고 환경을 더욱 악화시킨다. 따라서 무단투기 쓰레기는 사회, 환경, 건강 측면에서 다양한 불편함을 초래한다. 이 연구는 서울시 자치구를 대상으로 쓰레기통의 개수, 무단투기 건수, 거주 인구수, 무단투기 감시 CCTV 개수, 전체 CCTV 개수, 주택 수 등의 다양한 변수 간의 상관관계를 분석하여, 도시 환경에서의 쓰레기 처리와 무단투기 감소에 대한 개선방안을 도출하고자 한다.

• Journal of Internet of Things and Convergence
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• v.6 no.1
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• pp.17-22
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• 2020

This paper is about IoT(Internet of Things)-based smart trash can. In modern society, waste disposal creates several social problems. In particular, large floating populations cause a problem in the city center on weekends as the waste disposal capacity cannot keep up with the amount of waste discharged. There are problems such as stinks, unpleasant aesthetics, and insects caused by overflowing garbage. To solve this problem, a smart trash can was proposed. The proposed smart trash can provide a garbage compression function, an automatic opening and closing of the trash can lid, a display of the amount of garbage, and monitoring and control of the trash can. It is expected that the proposed 'smart trash can' can be usefully used for outdoor waste disposal with a large floating population.

• Fire Science and Engineering
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• v.11 no.2
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• pp.11-17
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• 1997

The objective of this research is to study on the decision of the interface height in a room in case of trashcan, chair, carpet and sofa as a fire starter in a residential room by performing the experimental studies. For the decision of the interface height, the temperatures of various positions in fire room are measured and the averaged temperatures are calculated from these measured temperatures every time and height. The temperatures of all positions in fire room are obtained as the basis of the measured temperatures and the middle point of the highest temperature slope is decided as the interface point. The interface heights were distinct and were around 1[m] maintaining constant state. However, at the time of the maximum temperature, the interface height was lowered to 0.25[m]-0.75[m] from the floor.

• Journal of Convergence Society for SMB
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• v.6 no.4
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• pp.65-70
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• 2016

Smart city is an urban development vision to integrate multiple information and communication technology(ICT) and Internet of Things(IoT). The goal of building a smart city is to improve the quality of life by using urban informatics and technology to improve the efficiency of services and meet residents' needs. Many devices in today have been used on various industrial regions. These devices use Internet to transfer their informations. We call these situations as the IoT(Internet of Things). We studied various application examples of IoT in smart city industrial region. In this paper, we described two actual cases such as smart park system and smart bin.

• Journal of Korean Society of Forest Science
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• v.87 no.4
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• pp.590-600
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• 1998

This study applied the normative approach to establish evaluative standards for the facilities in Moodeung-san Provincial Park. Based on the established evaluative standards, this study examined the present facility managerial conditions of the park, and suggested some management alternatives to solve the identified problems. Data were collected by on-site survey and a mail-back questionnaire during August of 1996 in Moodeung-san Provincial Park. Out of 1,173, 519 respondents (44.2%) were used for the analysis. According to the results, three indicators out of five established indicators except 'adequacy of garbage cans' and 'adequacy of trail-guidance facilities' were in worse conditions than the established evaluative standards. The three indicators were 1) adequacy of toilets, 2) cleanness of toilets, 3) waiting time for using public transportations. The present condition for 'adequacy of trail-guidance facilities' was the same with the evaluative standard. This study suggested some management strategies to improve these problematic conditions, and introduced how managers may use these information for the facility management of the park.

• Korean Journal of Environment and Ecology
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• v.7 no.2
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• pp.221-230
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• 1994

Visitors to Tokyusan National Park were surveyed from August 9 to 12 During this time, 443 vistors were contacted. Of those individuals, 68.7% were males. 27.5% of respondents reported that they had gone beyond high shcool, and over one-half (64.9%) had gone as far as college. 54.7% were 20 years of age. 42.9% of the survey respondents were making their frist trip to Kuch'ontong and 67.9% to Muju Resort. The largest percentage of respondents were reported that they visited Tokyusan National Park for rippling. In group type, majority were traveling with their friends or family. In activity characteristics, 83.4％ were staying over nights visitors, and over 50% mentioned staying at private houses or hotels. In six types of normative violations, major reasons of littering behavior were unintentional violation and releaser-cue violation. Most respondents who witness other visitors' littering were not likely to intervene to stop their visitors' depreciative behavior(Bystander intervention Behavior). Most of visitors want to get more information from national park office.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.22 no.3
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• pp.75-81
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• 2022

Under the government's principle of paying for emissions, the RFID-based pay-as-you-go system, which charges fees in proportion to emissions, was fully implemented in 2012. As of the end of 2018, the penetration rate is about 40% based on 149 local governments and multi-family apartments nationwide. The introduction of equipment showed a reduction effect of about 20-30%. Problems with existing equipment also began to appear. This study tried to improve by applying and integrating the existing technologies to solve the fundamental problems of these inlets. In other words, the plan is to improve the environment around the food waste meter by changing the design so that the hopper goes deep into the food waste bin inside the food waste meter so that the food waste becomes full and is designed smoothly when replacing the collection container.