Personal Computer Communication Research Articles

The rise and development of the platform economy in South Korea

AbstractNoting the growing importance of online platforms, this paper discusses the rise and development of the platform economy in Korea, defining platforms as a business model and arguing that the platform economy requires financing, an environment for Internet use and users, services, and content. Many believe that the platform economy's development is a natural outcome of technical innovation. However, the platform economy was created by the interplay of government and corporate strategies under certain historical conditions. In Korea, the platform economy developed after the 1997 Asian financial crisis. Presenting the IT industry and venture businesses as a solution to the crisis, the government helped finance venture companies through intensive investment and enhanced the strategy of building information and communication infrastructure. Platform companies suffered from the lack of content and services to provide; however, they quickly built web portal platforms with Korean specificities by copying and benchmarking personal computer communication services.

Design of Novel Optical Fiber Communication Electronic System and Big Data Prediction Method of Its Loss

For the shortcomings of traditional data communication electronic mode and bus interface, optical fiber communication electronic technology and compact peripheral component interconnect (CPCI) bus interface mode with industry standard are adopted to design a kind of optical fiber communication electronic data transmission mode. The optical fiber communication electronic board based on CPCI bus constitutes a novel optical fiber communication electronic system. In the process of hardware design, the small form-factor pluggable (SFP) transceiver module is used to convert the photoelectric signal and complete the transmission of optical fiber data. Regarding the existence of differential signal in high-speed serial circuit of electronic board, the wiring is reasonably arranged. The hardware test platform of optical fiber communication electronic system is built based on PCI9054 CPCI bus and industrial personal computer (IPC) communication electronics. FPGA with embedded high-speed serial transceiver module is adopted to design the hardware logic function. Binary gray code is used to count. FIFO protocol and Aurora protocol are supported. Protocol IP core is customized to realize the full duplex electronic communication of high-speed data. Considering the loss problem of the system, the grey model GM(1, 1), ARIMA model and Elman neural network are employed as the big data level research scheme, which are combined into the loss prediction model according to a certain proportion. In the experiment, the test of DMA data reading and writing function is designed, and the embedded highspeed transceiver module and optical fiber communication electronic logic function are simulated. The results show that the symbol error rate (SER) is always 0, and the low-pass filtering characteristics of the channel are effectively compensated, which makes the signal quality stabler. Compared with the single big data level research scheme, the combined model has smaller prediction error and higher prediction accuracy.

Emotion recognition model based on facial expressions

Face mining is characterized as the revelation of picture designs in a given congregation of pictures. It is an exertion that generally attracts upon information PC (Personal Computer) vision, picture handling, information mining, AI (Artificial Intelligence), database, and human-made reasoning. Facial acknowledgement breaks down and contemplates the examples from the images of the facial. Facial component extraction is a programmed acknowledgment of human faces by recognizing its highlights, for example, eyebrows, eyes, and lips. In this paper, we are assessing the execution of PCA (Priniciple Component Analysis), GMM (Gaussian Mixture Models), GLCM (Gray Level Co-Occurrence Matrix), and SVM (Support Vector Machines) to perceive seven distinctive outward appearances of two people, for example, angry, sad, happy, disgust, neutral, fear, and surprise in database. Our point is to talk about the best systems that work best for facial acknowledgement. The present investigation demonstrates the plausibility of outward appearance acknowledgement for viable applications like surveillance and human PC communication.

무선전력 전송효율 음영영역 제거와 최대효율 전송을 위한 3D 스캐닝 MR-WPT 시스템

This paper proposes a 3D scanning magnetic resonance wireless power transfer system to eliminate dead-zones and improve transmission efficiency. This system consists of an oscillator, power amplifier, microcontroller unit, personal computer, pan-tilt motor, transceiver coil, rectifier, and wireless communication units. This system provides the maximum voltage to the receiver within a short timeframe using the zone-based maximal transmission efficiency searching process algorithm. From the measurement results, it can be observed that the time to find the maximum transmission efficiency with this algorithm is 11 times faster than that of the full scan by 5° and that the position error of maximum transmission efficiency is less significant.

Polishing Process Automation by Industrial Robots with Polished Surface Quality Judged Based on Imaging Processing

In polishing-process automation, research is focusing on having industrial robots replace skilled personnel. In judging whether polishing is sufficient, and robot polishing programs using CAD/CAM have been proposed. We propose that polished surface quality the judged based on image processing, with the robot polishing using a personal computer and signal communication.

Lab‐on‐a‐robot: Integrated microchip CE, power supply, electrochemical detector, wireless unit, and mobile platform

In this paper, the fabrication of a wireless mobile unit containing an electrochemical detection module and a 3-channel high-voltage power supply (HVPS) designed for microchip CE is described. The presented device consists of wireless global positioning system controlled robotics, an electrochemical detector utilizing signal conditioning analog circuitry and a digital feedback range controller, a HVPS, an air pump, and a CE microchip. A graphical user interface (LabVIEW) was also designed to communicate wirelessly with the device, from a distant personal computer communication port. The entire device is integrated and controlled by digital hardware implemented on a field programmable gate array development board. This lab-on-a-robot is able to navigate to a global position location, acquire an air sample, perform the analysis (injection, separation, and detection), and send the data (electropherogram) to a remote station without exposing the analyst to the testing environment.

A novel multiplex‐port brouter for regional PC communication network systems and its performance

Research is being conducted on regional personal computer (PC) communication network systems to provide convenient and cost-effective PC communication services to local home users and small companies. A group communication service was proposed that offers connectionless communication to registered users via an Ethernet interface on the customers' premises. An experimental system was developed and tested. This paper presents a newly developed multiplex-port brouter that can accommodate a large number of subscribers and evaluates its performance. The system configuration and brouter architecture are also described. The configuration and function of custom LSIs that perform high-speed HDLC coding and decoding are presented. A measurement scheme that simulates multiple PC accesses is shown. The brouter performance is evaluated using PCs connected via a subscriber network system. © 1999 Scripta Technica, Electron Comm Jpn Pt 1, 82(8): 13–21, 1999

Technology for Recreation : A Look at the Famicon and Personal Computer Communication

Avec le developpement technologique, l'informatique est devenue une distraction : reseaux d'ordinateur personnel et ordinateurs familiaux se developpent. Aux jeux d'actions s'opposent les jeux de role plus sophistiques : les premiers sont plus apprecies en Europe et en Asie, et les seconds en Amerique du Nord. Quoi qu'il en soit, le virtuel est au centre de cette nouvelle culture

特集 電算機応用 大同特殊鋼（株）における情報通信ネットワークについて

Daido Steel Co., Ltd developed a computerized on-line production control system using data communication network named COPS in Chita plant in 1974. Since then, our data communication network has been growing wider and more rapid, and it has been applied to various uses.We started using HD (High-speed Digital line) among offices and plants, and integrating data and voice communication in 1986.The characteristics of our communication network are:•Toll dial (telephone, FAX, personal computer communication)•Connection of all computers and terminals (DNS)•Inter-corporate communication network (DAIDO-NET), and the aims of expansion are:•Higher grade •More reliability •Better economy.

特集 市民運動などによる酸性雨ネットワークでの測定成果 パソコン通信による酸性雨測定ネットワークＨＯＮＥＳＴ

特集 市民運動などによる酸性雨ネットワークでの測定成果 パソコン通信による酸性雨測定ネットワークＨＯＮＥＳＴ

特集・情報ネットワーク データベース パソコン通信周辺の空白を埋める

特集・情報ネットワーク データベース パソコン通信周辺の空白を埋める

Study of multidimensional coded modulation in land mobile radio communication

A high reliability in communication is required in data transmission, such as personal computer communication and facsimile, in the digital land mobile communication. One means to cope with this problem is the coded modulation. This paper discusses the multidimensional coded modulation which is one such coded modulation method. Little consideration has been given to the application of this method to land mobile communication. In this study, 16 QAM is employed, applying the fading distortion compensation to the modulation method. The interleaving method is combined, and the bit-error rate of the multidimensional coded modulation system under the fading environment is investigated. The four-, eight-, and 16-dimensional cases are investigated by computer simulation, and a gain of approximately 3 dB is indicated for the eight- and 16-dimensional cases. The reason for such a small improvement is due to the unbalance of the error-rate performance in the coded symbol block. From such a viewpoint, the bit-error rate is analyzed by dividing the bit sequence in the symbol block into three parts, considering only the eight-dimensional case. As a result of the effort to reduce the unbalance of the bit-error rate performance under fading, the improvement of approximately 6 dB is realized for the bit-error rate of 103, thereby increasing the performance improvement.

Remote Monitor System with Personal Computer Communication for Rural Sewage Facility

Remote Monitor System with Personal Computer Communication for Rural Sewage Facility

Implementation and evaluation of X.25 and X.32 on personal computers

With the increased use of personal computers (PCs) in communication environments have come the expectation of reliable communication protocols. This paper describes the implementation details of two very similar packet communication protocol interfaces on PCs. One is the X.25 interface for packet-switched public data networks, and the other is the X.32 interface for public-switched telephone networks. The implementation of these protocols is performed with consideration of the future introductions of OSI higher-layer protocols. This paper describes also that the addition of the assigning mechanism of level 2 address to the Rec. X.32 enables powerful personal computer communication through public-switched telephone networks. Furthermore, the results of the performance evaluation are described which show the high throughput of more than 90 percent on various speeds of the physical circuit.

特集 第７回水郷水都大会より 環境教育とパソコンネットワークシステム 水質調査を柱とした環境教育と環境を主題としたパソコン通信（エコネット）の世界

特集 第７回水郷水都大会より 環境教育とパソコンネットワークシステム 水質調査を柱とした環境教育と環境を主題としたパソコン通信（エコネット）の世界

Design and implementation of protocol conversion equipment for layered protocols

AbstractIn the information communication system it is necessary to establish the protocol conversion, network connection and media conversion techniques to realize communications among computers and terminals with different communication protocols. This paper considers the hierarchical protocol defined based on the OSI basic reference model, and discusses the protocol conversion method together with its realization. A versatile method is introduced in the proposed hierarchical protocol conversion system, in which a protocol conversion can be made from PAD function for various terminals as well as from the nonprocedural level to the personal computer communication protocol recommended by the Ministry of Posts and Telecommunications. The protocol conversion equipment developed based on the proposed idea is demonstrated, and its usefulness is indicated.

パソコン通信による科学技術情報データーベースの利用

パソコン通信による科学技術情報データーベースの利用

Personal computer communications via VSAT networks

The very small aperture terminal (VSAT) satellite network, a transport medium that is becoming important for long-distance personal computer (PC) communications, is described and analyzed. The mature and readily available VSAT technology offers many benefits and advantages over conventional terrestrial networks, including lower operating costs, ease of installation and maintenance, support for multiservices, bringing locations where the cost of leased lines is exorbitant into the communications loop, and integrating a large number of VSATs into a single network to provide a cost-effective expansion from small to large systems. The following aspects of VSAT networks are discussed: network configurations, networking and multiaccess, error-control protocols, and end-to-end performance analysis.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

Personal computer communications on intrabuilding power line LAN's using CSMA with priority acknowledgements

Intrabuilding power lines provide a readily available and easily accessed network for personal computer (PC) communications within buildings. The use and performance of carrier-sense multiple access with priority acknowledgements (CSMA/PA) on such networks is described. The communication characteristics of intrabuilding power-line channels are summarized and found to suffer from highly variable and unpredictable signal-to-noise ratios and bit-error rates. The advantages of CSMA/PA relative to polling and token-passing access protocols are discussed. The architecture of a CSMA/PA implementation is described. The choice of the best data-link packet length is determined from throughput measurements to be approximately 1000 bits. Delay-throughput performance is measured at 1.2, 2.4, 4.8, and 9.6 kb/s using a phase-shift-keyed (PSK) spread-spectrum modem. Results are included for the potentially difficult problem of transmission across power phases. A discussion of results obtained and their implications for PC intrabuilding communications is also included. >

Development of CAI kit for personal communication and personal computer communication software

Development of CAI kit for personal communication and personal computer communication software