Modular data communication methods for a robotic excavator

2018 ◽  
Vol 90 ◽  
pp. 166-177 ◽  
Author(s):  
Jeonghwan Kim ◽  
Seung Soo Lee ◽  
Jongwon Seo ◽  
Vineet R. Kamat
Keyword(s):  
Data Communication ◽  
Robotic Excavator ◽  
Modular Data ◽  
Communication Methods

On the Development of the ISAAC Graphic Model

2006 ◽  
Author(s):  
K. R. Kim ◽  
S. D. Kim ◽  
Y. M. Song
Keyword(s):  
Reactor Core ◽  
Data Communication ◽  
System Structure ◽  
Graphical Display ◽  
Graphic Model ◽  
Severe Accidents ◽  
Basic Functions ◽  
Variable Definition ◽  
Control Capability ◽  
Communication Methods

Recently the development of graphical methods using the ISAAC code’s calculation data has been started in order to show the Wolsong 1 & 2 PHWR plants behaviour during the severe accidents. This graphic model is designed to provide two basic functions: one is to provide the graphical display of several plants systems together with the important parameters. For example, the representative T/H behaviour, fuel behaviour, fuel channel behaviour, reactor core behaviour, containment behaviour and fission product behaviour are going to be displayed in a graphic window. The other function is the control capability equipped with the controllable valves and pumps in the PHWR SAMG. In this paper, details of the elementary technical aspects of the ISAAC graphic model are presented which are the system structure, ISAAC variable definition, data communication methods and graphical display generation.

Data communication and intelligence in traffic simulation environments: Simulation time and performance experiments

2021 ◽  
pp. 1-8
Author(s):  
Joonho Ko ◽  
Hyun Woong Cho ◽  
Jung In Kim ◽  
Hyunmyung Kim ◽  
Young-Joo Lee ◽  
...  
Keyword(s):  
Real Time ◽  
Traffic Simulation ◽  
Data Communication ◽  
Simulation Models ◽  
Traffic Information ◽  
Time Data ◽  
Simulation Performance ◽  
Communication Methods ◽  
Simulation Time ◽  
Simulation Environments

Transportation system management and traveler information systems evolve with the development of data communications and intelligence of traffic simulations. Variety of roadside and mobile sensing platforms will be deployed to allow communication between vehicles with Dedicated Short Range Communications (DSRC). Traffic data received from moving vehicles will be transmitted to each individual vehicle and traffic management center to provide real time traffic information. Microscopic traffic simulation models will be used for generating intelligence from real time data in the form of traffic analysis and prediction, since they have the highest detailed level of prediction such as vehicle / driver characteristics and have the capability to capture dynamically changing traffic conditions through the simulation. In this study, three communication methods for data communication and intelligence in traffic simulation environments are used including Ethernet, off-the-shelf wireless network, and one commercial network provider for data communication. Simulation time is measured and statistically analyzed using three different communication methods and one non-communication case. Also, traffic simulation performance is investigated to demonstrate the intelligence of traffic simulation tools in modeling traffic congestion.

Data Communication Methods for the Fault Diagnosis Instrument System

2010 ◽  
Vol 42 ◽  
pp. 386-390
Author(s):  
Deng Pan Zhang ◽  
Hong Li Zhu ◽  
Yong Gang Shi
Keyword(s):  
Fault Diagnosis ◽  
Data Processing ◽  
Data Exchange ◽  
Design Principle ◽  
Data Flow ◽  
Data Communication ◽  
Software Bus ◽  
Communication Methods ◽  
Working Processes

The data communication plays a very important role in fault diagnosis instrument system. In this paper, a flexible software bus method is proposed which is designed for the communication among instrument components. In this way, the data processing modules can be prefabricated together dynamically and in parallel. To carry out the communication between the bus and components, the design principle and the architecture of the components is discussed, and then the fault diagnosis instrument cases can be constructed by configuring the instrument components with the communication addresses. Based on the software bus, the processed data of fault diagnosis can propagate among the configured data flow ways asynchronously, and users can plug and unplug any components to the instrument platform. The application cases shows that the proposed way can accelerate data exchange among the modules based on the components and improve the working processes efficiency.

EMLDC: An Efficient Method of Long Data Communication for the L4 Microkernel-Based Virtual Machines

2013 ◽  
Vol 734-737 ◽  
pp. 2953-2958
Author(s):  
Guang Hui Cheng ◽  
Lian Li
Keyword(s):  
Shared Memory ◽  
Efficient Method ◽  
Virtual Machines ◽  
Data Communication ◽  
Embedded Devices ◽  
Priority Inversion ◽  
Performance Loss ◽  
Efficient Communication ◽  
Communication Methods ◽  
Blocking Algorithm

Microkernel-based virtualization is one of several popular virtualization technologies aiming for embedded devices and efficient communication between virtual machines should be provided as other virtualization solutions. Long data communication is one of main two communication methods. This paper proposes EMLDC: an efficient method of long data communication based on shared memory in the L4 Microkernel-based virtualization environments. Especially EMLDC adopting lock-free mechanism can reduce performance loss and priority inversion in the real-time virtual machines against traditional blocking algorithm. Benchmark programs have been conducted to demonstrate that EMLDC can support long data communication efficiently.

What Happens When Data Communication Fails? - A Simulation Study

2011 ◽  
Author(s):  
Sehchang Hah ◽  
Ben Willems ◽  
Kenneth Schulz
Keyword(s):  
Simulation Study ◽  
Data Communication

Rancang Bangun Sistem Komunikasi Data Antara Mikrokontroller Atmega8 Dengan Arduino Pada Mesin Roaster Coffe Digital

2020 ◽  
Vol 3 (2) ◽  
pp. 103-113
Author(s):  
Rachmad Ikhsan ◽  
Effendi Effendi
Keyword(s):  
Temperature Sensor ◽  
Data Communication ◽  
Test Results ◽  
Industry Standards ◽  
Long Time ◽  
Roasting Time

Roasting coffee manually is widely applied by coffee producers. This process takes a very long time and is less efficient in terms of productivity for industry standards. This machine  is equipped with a thermocouple sensor as a temperature sensor that will measure the temperature in the roasting cylinder, then equipped with a timer as a reminder of roasting time that ranges from 15 minutes at a temperature of 200 degrees Celsius, this machine  is also equipped with android as a timer controller on the coffee roaster machine. This machine is also equipped with a microcontroller and Bluetooth as a media transmitter and data receiver. From the test results obtained data that Bluetooth can be used for data communication between the microcontroller and Android with a distance of 30 meters in the room, and 12 meters outside the room. If it exceeds that distance, then Bluetooth will not respond back

Design, Development and Practical Realization of a VLC Supportive Indoor Lighting System

2020 ◽  
pp. 87-97
Author(s):  
Sourish Chatterjee ◽  
Biswanath Roy
Keyword(s):  
Data Communication ◽  
Cost Effective ◽  
Ambient Light ◽  
Lighting System ◽  
Design Development ◽  
Led Driver ◽  
Communication Performance ◽  
Good Communication ◽  
Simulink Model ◽  
Light Interference

In an office space, an LED-based lighting system allows you to perform the function of a data transmitter. This article discusses the cost-effective design and development of a data-enabled LED driver that can transmit data along with its receiving part. In addition, this paper clearly outlines the application of the proposed VLC system in an office environment where ambient light interference is a severe issue of concern. The result shows satisfactory lighting characteristics in general for this area in terms of average horizontal illuminance and illuminance uniformity. At the same time, to evaluate real-time and static communication performance, Arduino interfaced MATLAB Simulink model is developed, which shows good communication performance in terms of BER (10–7) even in presence of ambient light noise with 6 dB signal to interference plus noise ratio. Our designed system is also flexible to work as a standalone lighting system, whenever data communication is not required.

POF — Polymer Optical Fibers for Data Communication

2002 ◽  
Author(s):  
Werner Daum ◽  
Jürgen Krauser ◽  
Peter E. Zamzow ◽  
Olaf Ziemann
Keyword(s):  
Optical Fibers ◽  
Data Communication ◽  
Polymer Optical Fibers
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