619 research outputs found
IMPROVED ROBOTIC DEVICE DRIVE SYSTEM- FLEXIBLE MANUFACTURING SYSTEM (FMS)
With today's industry and new technology development, there are more demands on
efficient and flexible system in the manufacturing system in order to have a productive and
qualitative production. Plus, robotic and automation is the main element in the industry
especially for the manufacturing factories. The innovation of flexible manufacturing
system has been developed rapidly in the industry as the market become more intense and
competitive. This report presents the improved robotic device drive system-flexible
manufacturing system (FMS). Fundamentally, this project is an improvement of the
previous project. The existing system is an integrated system of KUKA KR3 Robotic,
OMRON C200HE PLC, sensors, and conveyors. The improvement is focused on the two
main parts which are PLC programming and human machine interface of the system. The
system developed is an application of robotic and PLC in the real manufacturing industry
which is a pick-and-place system. It is a small scale FMS where the robotic arm will
respond to the PLC command which has been programmed. By using the application of
HMI, the user could control and monitor the pick-and-place system from PC. In order to
understand and develop this project a thorough study of the robotic, PLC, FMS, and HMI
as well as the hardware and software has been done. Then, the development of
programming for PLC and HMI had been developed by using CX-programmer and Visual
Basic 6.0 software
A feasibility study in the development of an off-line PLC based robot control system
A project report submitted to the Faculty of Engineering, in partial fulfilment of the requirements for the degree of Master of Science in Engineering, University of the Witwatersrand. Johannesburg 1990.Robotics are becoming a more prominent force in the
industrial environment, and research is being concentrated
on control rather than on the robot. The feasibility of a
substitute, off-line, plc based control system was
investigated. Many advantages are associated with an
off-line system, as well as the large financial saving (at
the most 50% that of the existing controller) .
A PLC with discrete 1/0 modules and a fast counting module
were used. Open loop control was looked at, with optical
encoders used for position control. Overshoot of the DC
motors consistently occurred, and other external factors
ensured the unpredictability and instability of open loop
control.
It was concluded that closed loop control was necessary to
ensure accurate positioning and speed control. PLC modules
Were investigated, and an axis control system (not yet
commercially available) was found to ideally suit the
purpose of servo/encoder control. This system makes use of
speed and position feedback signals, essential for accurate
terminal Control of the robot.MT201
The area wide real-time traffic control (ARTC) system : the logical structure and computational algorithms
With the high development of Chinese economy, the number of automobiles rises sharply. In order to let more vehicles pass the limited roads successfully, The Aerawide Real-Time Traffic Control CARTC) System cornes up. Although ARTC has been studied for many years in foreign countries, its study is still in the embryonic stage in China. After investigating, we discovered that system just recently. Only some simple Intelligent transport control has been realized in quite a few cities However, in many large and middle cities, Intelligent transport control is still in a research period. \ud
We had been thinking about this research from juniors. We spent one year doing large quantity of social examination, investigating some roads personally and inquiring a lot of material from Internet and library. On the basis of this, we made the road sate model. Several typical states are represented on this model, so it is definitely representative. We chose the comparatively simple and easily operated green wave control. One computer controls six PLC. Long-range control is realized by dialing online the modulator-demodulator. We adopted some basic vague control thought, meanwhile, combined with actual circumstances, and designed a set of practical control algorithm. We mainly used VB6.0 and PLC programmed software from OMRON Company. In the end, we completed the control program of both the upper and lower bit machine. Of course, there are many immature and imperfect aspects in our design, I hope to get guidance and help from all people. \ud
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MOTS-CLÉS DE L’AUTEUR : ARTC (Aerawide Real-Time Traffic Control), PLC (Programmable Logic Contrllor), ITS (Intelligent Traffic System
A helicopter flight investigation of roll-control sensitivity, damping and cross coupling in a low altitude lateral maneuvering task
A helicopter in-flight simulation was conducted to determine the effects of variations in roll damping, roll sensitivity, and pitch and roll rate cross-coupling on helicopter flying qualities in a low altitude maneuver. The experiment utilized the UH-1H helicopter in-flight simulator, which is equipped with the V/STOLAND avionics system. The response envelope of this vehicle allowed simulation of configurations with low to moderate damping and sensitivity. A visual, low level slalom course was set up, consisting of constant speed and constant altitude S-turns around the 1000 ft makers of an 8000 ft runway. Results are shown in terms of Cooper-Harper pilot ratings, pilot commentary, and statistical and frequency analyses of the lateral characteristics. These results show good consistency with previous ground simulator results and are compared with existing flying qualities criteria
Applying PLCS to EDMS/MTF at the European Organization for Nuclear Research
Estágio realizado no CERN e orientado Eva Sanchez-Corral MenaTese de mestrado integrado. Engenharia Informática e Computação. Faculdade de Engenharia. Universidade do Porto. 200
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