• Title, Summary, Keyword: Small IoT sensor

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Power Manageable IoT Systems Using RF433 Wireless Sensor Network and ARDUINO-YUN Based Gateway (RF433 무선 센서 네트워크와 ARDUINO-YUN 기반의 게이트웨이를 활용한 전력관리 IoT 시스템)

  • Choi, Eun-Seok;Shim, Jae-Ryong;Chang, Sekchin
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.21 no.5
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    • pp.936-944
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    • 2017
  • These days, research has been made for a variety of internet of things (IoT) technologies over industrial fields. The current research trend includes the effective adoption of the IoT technologies. But, most IoT researches assume a relatively complicated structure, which consists of sensor devices, gateway, network server, and application server. Of course, the structure has distinct merits in the aspects of flexibility and expandability. However, the complicated structure causes the system implementation overhead including high-cost implementation, and hinders the practical usage of IoT in the industry areas, which require a small-size network. In this paper, we propose a novel IoT system architecture, which guarantees the small-size network and the low-cost implementation. Also, we implement the infrastructure, which includes the RF433-based sensor network, the ARDUINO-YUN based gateway, and the application server using Apache/PHP/MySQL (APM) package. Finally, we present the effective power management scheme among these components.

A Smart Home Prototype Implementation Using Raspberry Pi (라즈베리파이를 이용한 스마트 홈 프로토타입 구현)

  • Kim, Jeong-Won
    • The Journal of the Korea institute of electronic communication sciences
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    • v.10 no.10
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    • pp.1139-1144
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    • 2015
  • The internet of things(: IoT) which could produce new information as well as service through connecting small devices with internet interface becomes reality and could be utilized in home, office and plant. Especially the IoT can provide our home for safety, security, convenience, and power saving since all devices form a small internet. This paper proposes an IoT prototype for home with Raspberry Pi which has various sensors and monitors environment. This Raspberry Pi sensor node is small and inexpensive but can provide powerful service. The implemented node goes beyond simple role of sensor node and features a kind of sensor web node which performs various functions to outer network. So the proposed IoT prototype can provide flexibility as well as extensibility since it does not need expensive server.

Power Efficient IoT (Internet of Things) System using the RF433 Wireless Sensor Network and ARDUINO YUN as the Gateway (RF433 무선 센서 네트워크 및 ARDUINO YUN을 활용한 전력 효율적인 IoT 시스템)

  • Choi, Eun-Seok;Shim, Jae-Ryong;Chang, Sek-Chin
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.719-722
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    • 2016
  • These days there have been trying to fuse the various of IoT (Internet of Things) technology over the industrial field. However the complicated IoT System structure comprised of sensor devices, gateway, network server, and application server causes the difficulties to the system implementation and the increment of installation cost, thereby preventing IoT system deployment in the industry fit for small size network environment. In this paper, authors propose a novel IoT system architecture that is useful in the industry field to be implemented by the small size network with low cost. Also, we implement the infrastructure to RF433 wireless sensor network, the gateway on ARDUINO YUN, and the application server using AMP (Apache, PHP, MySQL) package and then present a power efficient management scheme for sensor devices.

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Implementation of IoT-based Automatic Inventory Management System

  • Choi, Eun-Soo;Kang, Min-Soo;Jung, Yong Gyu;Paik, Jean Kyung
    • International Journal of Advanced Culture Technology
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    • v.5 no.1
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    • pp.70-75
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    • 2017
  • Recent development of IT industry including smart phones and communication technologies has resulted in rapid growth of Internet of Things (IoT) technology and relevant markets. The access to IoT is becoming easier thanks to the boards and IoT products, such as Arduino and Raspberry Pi. Large-scale business sites use IoT technology to manage inventories, but small-scale business sites do not. In the present study, We ported Linux-based Raspbian to Raspberry Pi, It utilizes web server communication to control the Arduino through the application We used a color sensor to figure out the kind of inventory. We also built a database using MySQL to store the data. We used raspberry pi to check whether the proposed system works and apply it to small-scale business.

Lambda Architecture Used Apache Kudu and Impala (Apache Kudu와 Impala를 활용한 Lambda Architecture 설계)

  • Hwang, Yun-Young;Lee, Pil-Won;Shin, Yong-Tae
    • KIPS Transactions on Computer and Communication Systems
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    • v.9 no.9
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    • pp.207-212
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    • 2020
  • The amount of data has increased significantly due to advances in technology, and various big data processing platforms are emerging, to handle it. Among them, the most widely used platform is Hadoop developed by the Apache Software Foundation, and Hadoop is also used in the IoT field. However, the existing Hadoop-based IoT sensor data collection and analysis environment has a problem of overloading the name node due to HDFS' Small File, which is Hadoop's core project, and it is impossible to update or delete the imported data. This paper uses Apache Kudu and Impala to design Lambda Architecture. The proposed Architecture classifies IoT sensor data into Cold-Data and Hot-Data, stores it in storage according to each personality, and uses Batch-View created through Batch and Real-time View generated through Apache Kudu and Impala to solve problems in the existing Hadoop-based IoT sensor data collection analysis environment and shorten the time users access to the analyzed data.

The research on Diffie-Hellman-based IoT Sensor Node key management (Diffie-Hellman 기반 사물인터넷 센서노드 키 관리 연구)

  • Hong, Sunghyuck;Yu, Jina
    • Journal of the Korea Convergence Society
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    • v.8 no.12
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    • pp.9-14
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    • 2017
  • Recently, the Internet of Things are developing in accordance with the technology of implementation in low-cost, small-size, low power consumption and smart sensor that can communicate using the internet. Especially, key management researches for secure information transmission based on the Internet of Things (IoT) are actively performing. But, Internet of Things(IoT) are uses sensor. Therefore low-power consumption and small-memory are restrictive condition. As a result, managing the key is difficult as a general security measure. However, The problem of secure key management is an essential challenge For the continuous development of the Internet of things. In this paper, we propose a key distribution and management technique in secure Internet of things. In the key generation and management stage, it satisfies the conditions and without physically constrained for IoT based communication.

A Study on improving manufacturing environment using IoT technology in small business environment (중소기업 환경에서 IoT 기술을 이용한 제조 환경 개선에 관한 분석 연구)

  • Jeong, Yoon-Su
    • Journal of Convergence for Information Technology
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    • v.7 no.2
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    • pp.83-90
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    • 2017
  • To launch the product recently attached to IoT consumer electronics, smart phones and healthcare products around the large companies is a trend that is growing interest in the IoT. However, the country's small business environment is what the environmental improvement process that is easily accessible to the small business environment because the IoT technologies are difficult to apply the IoT technologies than any other country environment than desperate situation. In this paper, we propose a service operating model to improve production efficiency when the fusion manufacturing process is currently operating in the country SMEs and IoT technology. Proposed model using the manufacturing product information and sensor / dabayiseu information in the entire manufacturing process has as its object to utilize the IoT technology. Performance evaluation, the proposed model is more efficient than the previous model and 23.1% of the manufacturing process. In addition, it is increasing the manufacturing process was reduced by 17.3%, the average processing time as compared to the previous model. Finally, the personnel cost to be used in the manufacturing process was found to be an average decrease of 19.8% than previous model.

A Study for the Mechanical Properties with Infill Rate in FDM Process to Fabricate the Small IoT Device (소형 IoT 기기 제작을 위한 FDM 프린팅 공정에서의 내부채움에 따른 물성치 변화 연구)

  • Ahn, Il-Hyuk
    • Journal of The Korea Internet of Things Society
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    • v.6 no.3
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    • pp.75-80
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    • 2020
  • Recently, the size of the IoT sensor has been decreased and the collecting direction of the IoT sensor for acquiring the data have been changed from 2D to 3D. It makes sensor structure complex. In the fabrication of the complex structure, 3D printing technology has more useful than traditional manufacturing technologies. Among 3D printing technologies, FDM (fused deposition modeling) is a candidate technology to fabricate a small IoT sensor because the price of the machine and the material is cheap. In the FDM process, a 3D shape is made by depositing the melted filament. Recently, the patent of FDM technology is expired and cheat machines are developed based on the open-source. In the FDM process, mechanical properties of a fabricated part is affected by a lots of factors such as the kind of material and process parameters. Among them, infill is affecting the mechanical properties and the production lead time as well. In this work, a new method to optimize the FDM process with the consideration of mechanical property and production lead time was proposed. To verify the method, the fabrications were performed with the different infill rates. The results of tensile tests were analyzed to verify the proposed method.

Middleware API Design for CoAP Usage (CoAP 사용을 위한 미들웨어 API 설계)

  • Kwon, Hak;Ra, Younggook;Jo, JaeDeok
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.17 no.2
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    • pp.119-126
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    • 2017
  • Developing the TCP/IP standard IBA which is higher organization of IETF decided to attach the TCP/IP protocol stack to small things, such as sensor. This means small object is also considered as on of the communication node, it has symbolic meaning that expand smart object has all five layer. Under this background, IoT/WoT configure the intelligent network between objects based on the internet to communication was introduced. Things has own IP address on IoT environment and are smart object that a lot of people communicate over the internet on Application Layer. In other words, IoT is that smart object are commercialized space. According to the interest of IoT, IETF establish CoAP for use as IoT protocol. CoAP is expected that standard protocols created by things is connected to the Internet protocol that can be used within a constrained environment. Accordingly, in this paper, we proposed Middleware API that can manage and collect the data of objects that connected CoAP network.

Design of a 6-Axis Inertial Sensor IC for Accurate Location and Position Recognition of M2M/IoT Devices (M2M / IoT 디바이스의 정밀 위치와 자세 인식을 위한 6축 관성 센서 IC 설계)

  • Kim, Chang Hyun;Chung, Jong-Moon
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.39C no.1
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    • pp.82-89
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    • 2014
  • Recently, inertial sensors are popularly used for the location and position recognition of small devices for M2M/IoT. In this paper, we designed low power, low noise, small sized 6-axis inertial sensor IC for mobile applications, which uses a 3-axis piezo-electric gyroscope sensor and a 3-axis piezo-resistive accelerometer sensor. Proposed IC is composed of 3-axis gyroscope readout circuit, two gyroscope sensor driving circuits, 3-axis accelerometer readout circuit, 16bit sigma-delta ADC, digital filter and control circuit and memory. TSMC $0.18{\mu}m$ mixed signal CMOS process was used. Proposed IC reduces 27% of the current consumption of LSM330.