FPGA-Based Dual-Polling Control System Design in WSN

2014 ◽  
Vol 665 ◽  
pp. 733-738 ◽  
Author(s):  
Zheng Gang Liu ◽  
Hong Wei Ding ◽  
Jia Guo ◽  
Xiao Hui Ma ◽  
Jia Long Xiong
Keyword(s):  
Control System ◽  
High Reliability ◽  
Rapid Development ◽  
Transmission Efficiency ◽  
Control System Design ◽  
Polling System ◽  
Fpga Design ◽  
Network Scheduling ◽  
Access Technology ◽  
Network Transmission

With the rapid development of WSN and the increasing of data speed, optimize of access technology becomes more and more realistic. This paper based on dual-polling protocol solves the QoS in WSN. On the basis of "Priority-based Polling Scheme for Traffic Differentiation", this paper conducted a dual-polling system based on FPGA design. By using the different network transmission priority setting, complete the optimization of network scheduling strategy. The control system has the advantages of high reliability, low delay, strong scalability, and high transmission efficiency.

Based on Vector Control of All-Electric Injection Molding Machine Control System Design

2012 ◽  
Vol 490-495 ◽  
pp. 2210-2214
Author(s):  
Ming Hui Li ◽  
Zheng Qi Li
Keyword(s):  
Control System ◽  
Injection Molding ◽  
Vector Control ◽  
System Design ◽  
High Reliability ◽  
Permanent Magnet Synchronous Motor ◽  
Control System Design ◽  
Molding Machine ◽  
Injection Molding Machine ◽  
Machine Control

According to the all-electric injection molding machine control system requirements, the vector control applied to the permanent magnet synchronous motor control, we propose a fully electric injection molding machine control system design, through analysis and research that can further improve the program precise all-electric injection molding machine control, its stability, high reliability, to better meet the all-electric injection molding machine of precision and stability requirements.

Application of Computer Simulation Technique in Smoke Control System Design

2011 ◽  
Vol 255-260 ◽  
pp. 1848-1852
Author(s):  
Ying Chen ◽  
Si Cheng Li ◽  
Jie Ji
Keyword(s):  
Computer Simulation ◽  
Control System ◽  
System Design ◽  
Rapid Development ◽  
Design Parameters ◽  
Control System Design ◽  
Smoke Control ◽  
Air Supply ◽  
Supply Mode ◽  
Smoke Control System

The fire simulation technology is widely used with the rapid development of computer technology. Taking a 12-story building for calculation, numerical simulation method is used to analyze the wind speed distribution characteristics of opening stairwell door and lobby door under different air supply volume. Then the appropriate pressurized air supply mode and back pressure coefficient value under natural smoke venting have been recommended. The researches show that computer simulation can be used in smoke control system design to help determine pressurized air supply mode and design parameters, so as to solve difficult problems in engineering design.

FPGA-Based Dual-Probabilities CSMA/CA Control System Design

2014 ◽  
Vol 556-562 ◽  
pp. 2297-2300 ◽  
Author(s):  
Zheng Gang Liu ◽  
Hong Wei Ding ◽  
Xiao Hui Ma ◽  
Qian Lin Liu ◽  
Jia Long Xiong
Keyword(s):  
System Performance ◽  
High Reliability ◽  
System Simulation ◽  
Control System Design ◽  
Test Results ◽  
Simple Circuit ◽  
Channel Utilization ◽  
Fpga Design ◽  
Packet Collision ◽  
Simulation Results

This paper presents a protocol to improve traditional CSMA protocol: DP-CSMA/CA protocol. In this paper, it is used in the design of WSN communication system based on FPGA. By using the method of the averaging period, we give the throughput parameters of this improved system. Simulation results confirmed that the DP-CSMA/CA protocol improves the system performance. The FPGA design is also effective to improve the performance of module in WSN. We completed the design of system based on DP-CSMA with FPGA. The test results show that: throughput are improved, packet collision is reduced, and channel utilization is improved in different load. This system has the features of simple circuit, high reliability, and programmable upgraded.

The Control System Design for a Feeding Machine in Farms

2014 ◽  
Vol 722 ◽  
pp. 266-270
Author(s):  
Jian Jun Wang ◽  
Hui Fang Gao ◽  
Li Yang Cai
Keyword(s):  
Control System ◽  
Wireless Communication ◽  
System Design ◽  
Software Design ◽  
High Reliability ◽  
Touch Screen ◽  
Control System Design ◽  
Communication Module ◽  
Easy Operation

The control system design for a Feeding Machine in Farms is introduced in this paper, it consists of PLC, MCGS touch screen, monitoring computer, wireless communication module, etc. This paper introduces in detail the system's hardware and software design. The system has characteristics of easy operation, stable running and high reliability.

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