• Title/Summary/Keyword: IoT sensor

Search Result 829, Processing Time 0.032 seconds

Design for Safety System get On or Off the Kindergarten Bus using User Authentication based on Deep-learning (딥러닝 기반의 사용자인증을 활용한 어린이 버스에서 안전한 승차 및 하차 시스템 설계)

  • Mun, Hyung-Jin
    • Journal of Convergence for Information Technology
    • /
    • v.10 no.5
    • /
    • pp.111-116
    • /
    • 2020
  • Recently, many safety accidents involving children shuttle buses take place. Without a teacher for help, a safety accident occurs when the driver can't see a child who is getting off in the blind spot of both frontside and backside. A deep learning-based smart mirror allows user authentication and provides various services. Especially, It can be a role of helper for children, and prevent accidents that can occur when drivers or assistant teachers do not see them. User authentication is carried out with children's face registered in advance. Safety accidents can be prevented by an approximate sensor and a camera in frontside and backside of the bus. This study suggests a way of checking out whether children are missed in the process of getting in and out of the bus, designs a system that reduce blind spots in the front and back of the vehicle, and builds a safety system that provide various services using GPS.

The study of the field customized SW training course design based on the analysis of the field suitability of the university SW education (대학 SW 교육의 현장 적합도 분석에 기반한 현장 맞춤형 SW 교육 과정 설계에 대한 연구)

  • Cha, Joon Seub
    • Smart Media Journal
    • /
    • v.4 no.4
    • /
    • pp.86-92
    • /
    • 2015
  • Recently, it is entering the hyper connectivity age due to the development of sensor and communication technology. In particular, it is emerging new industries such as the IoT, bigdata, cloud by convergence with the ICT and other industries. Because these industries are high the gravity of the software, the demand for software manpower is increasing rapidly. But university curriculum don't deviate from the traditional curriculum, and lack of positive response to these changes is occurring a mismatch with the industry demand. In this paper, investigate a software curriculums of the four-year university, and will attempt to investigate the perception about the university software course of the corporate perspective. Also, we draw a on-site fitness of universities training course by analysis of importance on software training courses between universities and businesses. Finally, we propose a strategy model for software training course design appropriate for the field.

S-FDS : a Smart Fire Detection System based on the Integration of Fuzzy Logic and Deep Learning (S-FDS : 퍼지로직과 딥러닝 통합 기반의 스마트 화재감지 시스템)

  • Jang, Jun-Yeong;Lee, Kang-Woon;Kim, Young-Jin;Kim, Won-Tae
    • Journal of the Institute of Electronics and Information Engineers
    • /
    • v.54 no.4
    • /
    • pp.50-58
    • /
    • 2017
  • Recently, some methods of converging heterogeneous fire sensor data have been proposed for effective fire detection, but the rule-based methods have low adaptability and accuracy, and the fuzzy inference methods suffer from detection speed and accuracy by lack of consideration for images. In addition, a few image-based deep learning methods were researched, but it was too difficult to rapidly recognize the fire event in absence of cameras or out of scope of a camera in practical situations. In this paper, we propose a novel fire detection system combining a deep learning algorithm based on CNN and fuzzy inference engine based on heterogeneous fire sensor data including temperature, humidity, gas, and smoke density. we show it is possible for the proposed system to rapidly detect fire by utilizing images and to decide fire in a reliable way by utilizing multi-sensor data. Also, we apply distributed computing architecture to fire detection algorithm in order to avoid concentration of computing power on a server and to enhance scalability as a result. Finally, we prove the performance of the system through two experiments by means of NIST's fire dynamics simulator in both cases of an explosively spreading fire and a gradually growing fire.

Design of Tour Guide System using Bluetooth 4.0 and WiFi Sensor Technology (블루투스4.0과 WiFi 센서 기술을 이용한 관광안내 시스템 설계)

  • Kim, Hee-Sook
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.16 no.10
    • /
    • pp.6888-6894
    • /
    • 2015
  • Bluetooth 4.0 is the most appropriate technology for Internet of Things, which can be used to enhance and expand the existing areas and areas with a variety of applications. In this paper, an example of the services of the Internet of Things, we developed a tour guide system using the Bluetooth 4.0 and WiFi sensor technology. iBeacon-based push service have been limited to iOS smart phone series, non-iOS family and lower version of iOS 6 smart phones can not receive push-based services. This paper proposed in iBeacon and WiFi sensor is more than tourists, while maintaining the existing system (non-iOS smartphone users) can provide the service to you. Service tourist information as well as that can provide the advertising associated with the service. With 10 kinds of smart phones used in Korea was the experiment on the MAC information collected. This experiment is to track the behaviour of tourists in history can provide customized services can be based. Tourist destinations as well as amusement parks, resorts, etc. If you want to apply this system in a crowded place for user behavior information-gathering feature views over the a prevention of a missing child features such as notifications, risk, prevention is possible for a variety of applications.

A Study on the Improvement of Fire Alarm System in Special Buildings Using Beacons in Edge Computing Environment (에지 컴퓨팅 환경에서 비콘을 활용한 특수건물 화재 경보 시스템 개선 방안 연구)

  • Lee, Tae Gyu;Choi, Kyeong Seo;Shin, Youn Soon
    • KIPS Transactions on Computer and Communication Systems
    • /
    • v.11 no.7
    • /
    • pp.217-224
    • /
    • 2022
  • Today, with the development of technology and industry, fire accidents in special buildings are increasing as special buildings increase. However, despite the rapid development of information and communication technology, human casualties are steadily occurring due to the underdeveloped and ineffective indoor fire alarm system. In this study, we confirmed that the existing indoor fire alarm system using acoustic alarm could not deliver a sufficiently large alarm to the in-room personnel. To improve this, we designed and implemented a fire alarm system using edge computing and beacons. The proposed improved fire alarm system consists of terminal sensor nodes, edge nodes, a user application, and a server. The terminal sensor nodes collect indoor environment data and send it to the edge node, and the edge node monitors whether a fire occurs through the transmitted sensor value. In addition, the edge node continuously generate beacon signals to collect information of smart devices with user applications installed within the signal range, store them in a server database, and send application push-type fire alarms to all in-room personnel based on the collected user information. As a result of conducting a signal valid range measurement experiment in a university building with dense lecture rooms, it was confirmed that device information was normally collected within the beacon signal range of the edge node and a fire alarm was quickly sent to specific users. Through this, it was confirmed that the "blind spot problem of the alarm" was solved by flexibly collecting information of visitors that changes time to time and sending the alarm to a smart device very adjacent to the people. In addition, through the analysis of the experimental results, a plan to effectively apply the proposed fire alarm system according to the characteristics of the indoor space was proposed.

Design of Compact Data Integration and Convergence Device Using Esp8266 Module (Esp8266모듈을 이용한 소형 데이터 통합 및 융합장치 설계)

  • Lee, Dong-Seok;Lim, Joong-Soo
    • Journal of the Korea Convergence Society
    • /
    • v.8 no.2
    • /
    • pp.15-20
    • /
    • 2017
  • In this paper, Esp8266, Node.js, and TCP / IP socket communication are used to design a compact data integration device. This device is designed to configure server and client using Esp8266 module that supports Wifi connection and to support bidirectional data transmission using TCP / IP socket communication. The server is configured using the Node.js operating system, and the database is integrated using Mysql. The network is designed to have a separate IP address by assigning a private IP address to the router, such as a home network. This device can transmit data bidirectionally, store individual client data on the server side, and can check the flow of data transmitted bidirectionally through wire-shark, so that it can be used as a compact real-time data integration and convergence device.

Service Platform Design for Smart Environment Disaster Management (스마트 환경재해 관리를 위한 서비스 플랫폼 설계)

  • Weon, Dalsoo
    • The Journal of the Convergence on Culture Technology
    • /
    • v.4 no.3
    • /
    • pp.247-252
    • /
    • 2018
  • The problem of the environment is urgently coming to the world as a problem that humanity must solve. In particular, Korea is directly affected by air pollution and marine pollution due to its geopolitical position with China, and is also exposed to a great deal of pollution due to air, water, soil, and weather. In this situation, due to the disconnection between the management domain / service (system) related to the environment, the ability to quickly identify causes and cope with situations in the event of environmental pollution or disasters is weak, and duplication and investment are being faced. The development of a service platform for smart environment disaster management is designed to detect environmental disasters in an early stage through the management of smart environment disaster management at the national level, It will be a way to predict complex environmental disasters.

User Task Management System based on Device Priority (기기 우선순위 기반 사용자 작업관리 시스템)

  • Jang, Kiman;Jeong, Dohyeong;Jung, Hoekyung
    • Journal of the Korea Institute of Information and Communication Engineering
    • /
    • v.21 no.3
    • /
    • pp.657-662
    • /
    • 2017
  • Recently, according to the development of the smart home field, it provides a service to install and keep the smart home appliance in a user's residential environment pleasantly. However, the conventional system method has a problem in that it is not convenient because the user selects a device or manually operates the device. In this paper, we propose a system to set the priority of the devices selected by the user and proceed with the work. When a user selects a device, it recommends a device associated with the device. Compare and set the priority of each device. And it is a system that carries out work according to the set priority. Therefore the proposed system is expected to provide users with increased convenience and efficiency of work management.

Implementation of a pet product recommendation system using big data (빅 데이터를 활용한 애완동물 상품 추천 시스템 구현)

  • Kim, Sam-Taek
    • Journal of the Korea Convergence Society
    • /
    • v.11 no.11
    • /
    • pp.19-24
    • /
    • 2020
  • Recently, due to the rapid increase of pets, there is a need for an integrated pet-related personalized product recommendation service such as feed recommendation using a health status check of pets and various collected data. This paper implements a product recommendation system that can perform various personalized services such as collection, pre-processing, analysis, and management of pet-related data using big data. First, the sensor information worn by pets, customer purchase patterns, and SNS information are collected and stored in a database, and a platform capable of customized personalized recommendation services such as feed production and pet health management is implemented using statistical analysis. The platform can provide information to customers by outputting similarity product information about the product to be analyzed and information, and finally outputting the result of recommendation analysis.

The Development of Remote Monitoring System for Storm Overflow Chamber Device (우수토실 일체형 하수유량조절장치 원격관리시스템 개발)

  • Jeon, In-Jae;Kim, Ki-Bong
    • Journal of the Korea Convergence Society
    • /
    • v.9 no.6
    • /
    • pp.61-68
    • /
    • 2018
  • This paper propose the remote monitoring system using LoRa networks about storm overflow chamber, which is a device designed to discharge rainwater directly to a sewage treatment plant when it reaches a certain amount of rainfall during precipitation. In this system, when the information produced by the sensor is transmitted to the LoRa network server and updated, the application server can automatically receive data through the implemented communication interface. The application server carries out management functions of storm overflow chamber devices and subscription information, collects measured flow rate and opening-closing information, and provides statistical information using the collected data. The android app performs a firebase-based notification function to prompt the user of malfunctioning of the storm overflow chamber device.