Research of Safety Interlock Monitoring System on Locomotive Service Field

2013 ◽  
Vol 409-410 ◽  
pp. 1509-1512
Author(s):  
Min Peng
Keyword(s):  
Monitoring System ◽  
Computer Control ◽  
Control Unit ◽  
Network Control ◽  
Centralized Control ◽  
Control Room ◽  
The Core ◽  
Display Unit ◽  
Control Units ◽  
Switch Control

The paper proposed a safety interlock monitoring system, which takes PLC network control as the core, constitutes computer control and display unit, catenary isolation switch control unit, automatic grounding switch, automatic inspection electrical detection, access control units, security alarm unit, video surveillance unit, and other components. Using to create a new centralized control room next Paddock to do a series of work. Itll not only improve work efficiency, but also shorten the entire job process, improve the safety of the operator, has a good promotion prospects.

Research on Monitoring System for Transfusion in Hospital

2013 ◽  
Vol 385-386 ◽  
pp. 500-503
Author(s):  
Hai Qun Wang ◽  
Mei Xu
Keyword(s):  
Control System ◽  
Monitoring System ◽  
Hospital Care ◽  
Computer Control ◽  
Stepper Motor ◽  
Computer Control System ◽  
Existing Problems ◽  
The Core ◽  
Automation Level ◽  
Upper Computer

In order to solve the existing problems of artificial monitoring transfusion treatment and enhance the automation level of the hospital care and management, a hospital infusion monitoring system is designed. Hospital infusion monitoring system adopts the structure of distributed computer control system, adopts RS485 bus to realize the communication between the upper computer and the lower computer. The lower computer uses MSP430F149 MCU as the core, implements the dripping speed detection, the drug liquid remaining amount detection, at the same time to adjust dripping speed by controlling the stepper motor. PC microcomputer as the monitoring center, accepts data that transmits from the lower computer, and displays, storages, analysises and statistics, at the same time controls the lower computer.

Design of Temperature and Humidity Monitoring System for Marine Working Platform

2013 ◽  
Vol 300-301 ◽  
pp. 453-457
Author(s):  
Zi Yue Wu ◽  
Shuai Zhang ◽  
Ting Gao
Keyword(s):  
Monitoring System ◽  
Control Unit ◽  
Point Temperature ◽  
The Core ◽  
Unit Design ◽  
Temperature And Humidity ◽  
And Control ◽  
Minimum System ◽  
Humidity Monitoring ◽  
Normal Work

A kind of temperature and humidity monitoring system for Marine working platform is introduced; the Processor of ARM Cortex-M3 as the core work components for the system is used, and the hardware and software architecture of the monitoring system is designed. The system has three component units: Temperature and Humidity monitoring unit, Minimum system unit and Control unit, design of the hardware and software is instructed in detail from these three parts of the system. It is proved by practice that the system can effectively achieve the acquisition of multi-point temperature and humidity monitoring and data management, and the normal work and operation of the instrument in the working platform at sea are ensured.

scholarly journals D-PMU and 5G-Network-Based Coordination Control Method for Three-Phase Imbalance Mitigation Units in the LVDN

Energies ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2754
Author(s):  
Mengmeng Xiao ◽  
Shaorong Wang ◽  
Zia Ullah
Keyword(s):  
Mobile Networks ◽  
Control Method ◽  
Low Voltage ◽  
Control Unit ◽  
Distribution Networks ◽  
Optimal Operation ◽  
Positive Sequence ◽  
Measurement Unit ◽  
Control Units ◽  
Three Phase

Three-phase imbalance is a long-term issue existing in low-voltage distribution networks (LVDNs), which consequently has an inverse impact on the safe and optimal operation of LVDNs. Recently, the increasing integration of single-phase distributed generations (DGs) and flexible loads has increased the probability of imbalance occurrence in LVDNs. To overcome the above challenges, this paper proposes a novel methodology based on the concept of "Active Asymmetry Energy-Absorbing (AAEA)" utilizing loads with a back-to-back converter, denoted as “AAEA Unit” in this paper. AAEA Units are deployed and coordinated to actively absorb asymmetry power among three phases for imbalance mitigation in LVDNs based on the high-precision, high-accuracy, and real-time distribution-level phasor measurement unit (D-PMU) data acquisition system and the 5th generation mobile networks (5G) communication channels. Furthermore, the control scheme of the proposed method includes three control units. Specifically, the positive-sequence control unit is designed to maintain the voltage of the DC-capacitor of the back-to-back converter. Likewise, the negative-sequence and zero-sequence control units are expected to mitigate the imbalanced current components. A simple imbalanced LVDN is modeled and tested in Simulink/Matlab (MathWorks, US). The obtained results demonstrate the effectiveness of the proposed methodology.

Some performance measures for computer control units

Cybernetics ◽  
1990 ◽  
Vol 25 (3) ◽  
pp. 365-370
Author(s):  
S. B. Pogrebinskii
Keyword(s):  
Performance Measures ◽  
Computer Control ◽  
Control Units

scholarly journals Vibration-Sensing Electronic Yarns for the Monitoring of Hand Transmitted Vibrations

Sensors ◽  
2021 ◽  
Vol 21 (8) ◽  
pp. 2780
Author(s):  
Zahra Rahemtulla ◽  
Theodore Hughes-Riley ◽  
Tilak Dias
Keyword(s):  
Monitoring System ◽  
Index Finger ◽  
Textile Yarn ◽  
The Body ◽  
Severe Injuries ◽  
The Core ◽  
Vibration Sensing ◽  
Yarn Structure ◽  
Fabric Sample ◽  
Power Tools

Overexposure to hand transmitted vibrations (HTVs) from prolonged use of vibrating power tools can result in severe injuries. By monitoring the exposure of a worker to HTVs, overexposure, and injury, can be mitigated. An ideal HTV-monitoring system would measure vibration were it enters the body, which for many power tools will be the palm and fingers, however this is difficult to achieve using conventional transducers as they will affect the comfort of the user and subsequently alter the way that the tool is held. By embedding a transducer within the core of a textile yarn, that can be used to produce a glove, vibration can be monitored close to where it enters the body without compromising the comfort of the user. This work presents a vibration-sensing electronic yarn that was created by embedding a commercially available accelerometer within the structure of a yarn. These yarns were subsequently used to produce a vibration-sensing glove. The purpose of this study is to characterize the response of the embedded accelerometer over a range of relevant frequencies and vibration amplitudes at each stage of the electronic yarn’s manufacture to understand how the yarn structure influences the sensors response. The vibration-sensing electronic yarn was subsequently incorporated into a fabric sample and characterized. Finally, four vibration-sensing electronic yarns were used to produce a vibration-sensing glove that is capable of monitoring vibration at the palm and index finger.

scholarly journals Computer Big Data Technology in Internet Network Communication Video Monitoring of Coal Preparation Plant

2021 ◽  
Vol 2083 (4) ◽  
pp. 042067
Author(s):  
Hao Chen ◽  
XinLi Zi ◽  
Qing Zhang ◽  
YuGe Zhu ◽  
JiaYin Wang
Keyword(s):  
Big Data ◽  
Monitoring System ◽  
Video Monitoring ◽  
Coal Preparation ◽  
Centralized Control ◽  
Safety Hazards ◽  
Fully Integrated ◽  
Potential Safety ◽  
Preparation Plant ◽  
Big Data Technology

Abstract The paper uses the control technology of computer big data and PLC, fieldbus communication technology and video monitoring technology to research, design and develop the monitoring system of the coal preparation plant’s production process. In this plan, the coal preparation plant’s video monitoring system, production centralized control system and other production support systems are fully integrated through network technology, to achieve the purpose of improving its safety guarantee function. The system improves the level of visual management, realizes unattended operation, and reduces potential safety hazards.

Temperature/Humidity Control System Based on Micro Controller Unit in the Room of Bikram's Yoga

2012 ◽  
Vol 529 ◽  
pp. 352-355
Author(s):  
Na Li ◽  
Yong Gang Tang ◽  
Gui Ying Wang
Keyword(s):  
Control System ◽  
Humidity Sensor ◽  
Control Unit ◽  
Data Display ◽  
Control Temperature ◽  
The Core ◽  
Wireless Transceiver ◽  
Remote System ◽  
And Control ◽  
Micro Controller Unit

This thesis has designed a temperature/humidity remote system which takes Micro controller Unit AT89S51 as the core control unit. The system consists of Micro controller Unit, SHT75 temperature/humidity sensor, Rok 101 007 wireless transceiver and PC data display modules. The system can detect and control temperature/humidity in the room of Bikram's yuga remotely to create an environment suitable for fitness in high temperature.

Three Dimensional GIS Monitoring System of Mineral Pipeline Transporting System

2012 ◽  
Vol 224 ◽  
pp. 547-550 ◽  
Author(s):  
Wei Dong Geng ◽  
Yu Gong ◽  
Li Zhang ◽  
Jian An ◽  
Jian De Wu
Keyword(s):  
Remote Control ◽  
Real Time ◽  
Monitoring System ◽  
Three Dimensional ◽  
Practical Application ◽  
Control Room ◽  
3D Gis ◽  
Gis Software

Designing the three dimensional (3D) GIS software used in monitoring mineral pipeline transporting system. The software can truly show and restore the geography of project and the features of terrain .The operator can not only examine and grasp the true situation of the distribution of pipeline, but also keep watch on the secure running of the pipeline by real-time remote video in the remote control room. The practical application indicates that the pipeline can run safely, stably and efficiently with the monitoring system.

Designs for Synchronous Data Acquisition of a Distributed System

2012 ◽  
Vol 239-240 ◽  
pp. 869-872
Author(s):  
Zuo Xi Tian ◽  
Feng Yu ◽  
Zeng Wu Liu
Keyword(s):  
Data Acquisition ◽  
Distributed System ◽  
Control Unit ◽  
Time Base ◽  
Time Signal ◽  
Centralized Control ◽  
Distributed Sensor ◽  
Network Time ◽  
Data Acquisition Module ◽  
C Center

To resolve the problem of acquiring multi sensors signals synchronously in a distributed system, a project of distributed synchronous data acquisition based network time server was designed. The system comprised multi distributed sensor units, a centralized control unit and D&C (display and control) center. Each sensor unit was equipped with a data acquisition module. All data from sensor units were concentrated and sent to the D&C center, and the D&C center implemented power supply and management of sensor units via the centralized control unit. To synchronize the data acquisition modules, a network time server was employed in the D&C center. It received standard time information from GPS and outputted the time signal with DCF77-encoding. Each data acquisition module received and decoded DCF77 time signal, obtaining absolute time and synchronizing its time base. Above project was applied successfully in a system comprising 20 distributed sensor units. The results prove the designs feasible.

Optimisation of a Polarisation Nephelometer

2021 ◽  
pp. 87-95
Author(s):  
Victor G. Oshlakov ◽  
Anatoly P. Shcherbakov
Keyword(s):  
Personal Computer ◽  
Position Control ◽  
Control Unit ◽  
Numerical Control ◽  
Radiation Beam ◽  
Drive Control ◽  
Control Units ◽  
Smooth Motion ◽  
Approximation Errors ◽  
Scattering Volume

An analysis of the influence caused by polarization nephelometer parameters on the scattering matrix measurement accuracy in a non-isotropic medium is presented. The approximation errors in the actual scattering volume and radiation beam by an elementary scattering volume and an elementary radiation beam are considered. A formula for calculating the nephelometer base is proposed. It is shown that requirements to an irradiation source of a polarizing nephelometer, i.e. mono-chromaticity and high radiation intensity and directivity in a wide spectral range can be satisfied by a set of high brightness LEDs with a radiating (self-luminous) small size body. A 5-wavelength monochromatic irradiation source, with an emission flux of (0.15–0.6) W required for a polarization nephelometer, is described. The design of small-sized polarizing phase control units is shown. An electronic circuit of a radiator control unit based on an AVR-Atmega 8-bit microcontroller with feedback and drive control realized by means of an incremental angular motion sensor and a software PID controller is presented. Precise and smooth motion of the radiator is ensured by standard servo-driven numerical control mathematics and the use of precision gears. The system allows both autonomous adjustment of the radiator’s reference positions and adjustment by means of commands from a personal computer. Both the computer and microcontroller programs were developed with the use of free software, making it possible to transfer the programs to Windows‑7(10), Linux and embedded Linux operating systems. Communication between the radiator’s position control system and the personal computer is realised by means of a standard noise immune USB-RS485 interface.

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