The Design of the Network Weighing Monitoring System Based on Embedded Controller

2012 ◽  
Vol 503-504 ◽  
pp. 1385-1388
Author(s):  
Geng Lie Zhou ◽  
Chi Bing Hu ◽  
Ya Zhou Wang
Keyword(s):  
Monitoring System ◽  
High Stability ◽  
Controller Design ◽  
Communication Protocol ◽  
Serial Communication ◽  
Centralized Control ◽  
Practical Application ◽  
Communication Function ◽  
Embedded Controller ◽  
Weighing Controller

The functions and the characteristics of RS-485 bus, I-7188 embedded controller, and SK2001 intellectual weighting controller are introduced briefly in this paper. The communication protocol of weighing controller, design of system hardware and software, and implementation of communication function are also analyzed in detail here. The serial communication between I-7188 and multiple weighing controllers has been implemented by using RS-485. As a result, the centralized control of the distributed equipments, the acquisition and automation upload of the metering data have been accomplished. The results of practical application show that this system has the characteristic of high stability and tolerance; it is easy to be managed and expanded as well.

Implementation and Application between High Stability PC and FPGA Serial Communication

2013 ◽  
Vol 331 ◽  
pp. 344-347
Author(s):  
Zheng Zhang ◽  
Li Xin Cai ◽  
Yu Kun Wang
Keyword(s):  
High Stability ◽  
Frequency Control ◽  
Serial Communication ◽  
Control Unit ◽  
Small Error ◽  
Waveform Generator ◽  
Labview Software ◽  
Control Interface ◽  
Control Command ◽  
Waveform Selection

In this paper, we mainly introduce the serial communication between PC and FPGA and adopt the design principles of DDS phase accumulator to achieve small error of baud rate generator and provide the reliable data transmission. On PC, we use the Labview software to design control interface, which is responsible for sending the control command. The experimental results indicate that the communication is feasible, high stability. This design is applied to the control unit of waveform generator based on FPGA by inputting relevant data on PC such as waveform selection, frequency control, range control and phase control to realize the function of waveform selection, amplitude modulation, phase modulation and frequency modulation.

scholarly journals Geometric Reduced-Attitude Control of Fixed-Wing UAVs

2021 ◽  
Vol 11 (7) ◽  
pp. 3147
Author(s):  
Erlend M. Coates ◽  
Thor I. Fossen
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Attitude Control ◽  
Controller Design ◽  
State Of The Art ◽  
Model Structure ◽  
Practical Application ◽  
Ultimate Boundedness ◽  
Adaptive Backstepping ◽  
Control Effectiveness ◽  
Heading Angle

This paper presents nonlinear, singularity-free autopilot designs for multivariable reduced-attitude control of fixed-wing aircraft. To control roll and pitch angles, we employ vector coordinates constrained to the unit two-sphere and that are independent of the yaw/heading angle. The angular velocity projected onto this vector is enforced to satisfy the coordinated-turn equation. We exploit model structure in the design and prove almost global asymptotic stability using Lyapunov-based tools. Slowly-varying aerodynamic disturbances are compensated for using adaptive backstepping. To emphasize the practical application of our result, we also establish the ultimate boundedness of the solutions under a simplified controller that only depends on rough estimates of the control-effectiveness matrix. The controller design can be used with state-of-the-art guidance systems for fixed-wing unmanned aerial vehicles (UAVs) and is implemented in the open-source autopilot ArduPilot for validation through realistic software-in-the-loop (SITL) simulations.

Serial Communication Protocol With Enhanced Properties–Securing Communication Layer for Smart Sensors Applications

2019 ◽  
Vol 19 (1) ◽  
pp. 378-390 ◽  
Author(s):  
Juraj Dudak ◽  
Gabriel Gaspar ◽  
Stefan Sedivy ◽  
Peter Fabo ◽  
Lubomir Pepucha ◽  
...  
Keyword(s):  
Communication Protocol ◽  
Serial Communication ◽  
Smart Sensors ◽  
Communication Layer ◽  
Enhanced Properties

scholarly journals Research on Multioperator silk screen printer Based on Communication Protocol Macro

2018 ◽  
Vol 153 ◽  
pp. 08001
Author(s):  
Zhang Zhiming ◽  
Sun Jun ◽  
Lu Binbin ◽  
Duan Yaoshuai
Keyword(s):  
Screen Printing ◽  
Communication Protocol ◽  
Frequency Converter ◽  
Practical Application ◽  
Frequency Converters ◽  
Sequence Generation ◽  
Process Characteristics ◽  
Technical Requirements ◽  
Silk Screen ◽  
Silk Screen Printing

Multioperator silk screen printer is automatic silk screen printing equipment. There are many advantages, such as energy saving, reduce the labor intensity and so on. The control system consists of an intermittent movement main motor and eight color working station printing cycle motion motors. The system controls nine frequency converters through protocol macro communication by using PLC. This paper studies the principle and process characteristics of multioperator silk screen printer. Besides, this paper adopts protocol macro sequence generation method for communication between PLC and frequency converter. This method can control the programming of parameters, such as frequency, operation and monitoring. It also can realize the printing of eight color working stations and monitor the printing status in real time. The practical application proves that the method meets the technical requirements and the reliability is good.

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.

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.

Merging and Splitting Petri Net Models within Distributed Embedded Controller Design

2013 ◽  
pp. 160-183 ◽  
Author(s):  
Luis Gomes ◽  
Anikó Costa ◽  
João Paulo Barros ◽  
Filipe Moutinho ◽  
Fernando Pereira
Keyword(s):  
Petri Nets ◽  
Petri Net ◽  
Code Generation ◽  
Controller Design ◽  
Output Place ◽  
Time Domains ◽  
Splitting Operation ◽  
Embedded Controller ◽  
Automatic Code ◽  
Property Verification

Design of distributed embedded controllers can benefit from the adoption of a model-based development attitude, where Petri nets modeling can provide support for a comprehensive specification and documentation of the system together with verification capabilities and automatic deployment into implementation platforms. This chapter presents a Petri nets-based development flow based on composition and decomposition of Petri net models, using Input-Output Place-Transition Petri nets (IOPT nets) as the underlying formalism, allowing reusability of models in new situations through a net addition operation, as well as partitioning of the model into components using a net splitting operation. Distributed embedded controllers are addressed adding the concept of time domains to IOPT nets. Finally, a tool chain framework is presented supporting the whole development process, from specification to implementation, including property verification, simulation, and automatic code generation for deployment into implementation platforms (considering hardware-based implementation and VHDL coding or software-oriented implementation and C coding).

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