scholarly journals IMPLEMENTATION OF FPGA BASED DA-PID CONTROLLER FOR TEMPERATURE SYSTEM

2013 ◽  
pp. 284-288
Author(s):  
L. VENKATESAN ◽  
A.D. JANARTHANAN ◽  
S. GOWRISHANKAR ◽  
P.R. AARTHI ◽  
G.SARAVANA KUMAR
Keyword(s):  
Control System ◽  
Cost Reduction ◽  
Pid Controller ◽  
High Speed ◽  
Modular Design ◽  
Digital Control System ◽  
Distributed Arithmetic ◽  
Feedback Controllers ◽  
Embedded Control ◽  
Field Programmable

In this paper, modular design of embedded feedback controllers using the Field Programmable Gate Array (FPGA) technology is presented. To this end, a novel Distributed Arithmetic (DA)-based Proportional Integral Derivative (PID) controller algorithm is implemented and integrated into a digital feedback control system. The DA-based PID controller savings 80% hardware utilization to the multiplier-based scheme. It also offers good closed-loop performance while using less resource, resulting in cost reduction, high speed, and low power consumption, which is desirable in embedded control applications. The complete digital control system is built using commercial FPGAs to control a simple temperature loop.

A Vision-Based Embedded Control System for Crystal Reorientation and Inspection

2012 ◽  
Vol 433-440 ◽  
pp. 3211-3217
Author(s):  
Sheng Q. Xie ◽  
Yun Ho Tsoi ◽  
Avilash Singh
Keyword(s):  
Control System ◽  
Distributed Control ◽  
High Speed ◽  
Complete System ◽  
Vision System ◽  
Embedded Control ◽  
Embedded Control System ◽  
Reorientation Time ◽  
Reorientation Process

This paper proposes a vision-based embedded motion control system that is developed in our research group. The system is an integration of three subsystems including, an embedded positioning platform, a vision system for inspection and a crystal reorientation system. The system is used as a positioning platform and crystal reorientation system to automate the crystal reorientation process. This process is important in ensuring that the units are correctly oriented for production processes. The focus of this research is placed on how to develop the embedded positioning platform, the crystal reorientation system, and how to improve the system performances including positioning and reorientation accuracy in high speed operation and quality of inspection. A distributed control architecture has been developed using PIC18F4520 microcontrollers. Tests run on the complete system have shown that the system is capable of a minimum indexing time of 1.53 units per second and a reorientation time of 1.42 seconds.

Design and Implementation of FPGA-Based Digital PID Controller Using Distributed Arithmetic

2012 ◽  
Vol 433-440 ◽  
pp. 5659-5665
Author(s):  
Xian Hai Wang ◽  
Jin Ling Jia ◽  
Guang Jian Cheng ◽  
Hai Jun Zhang ◽  
Wen Jun Yu
Keyword(s):  
Processing Speed ◽  
Pid Controller ◽  
Step Response ◽  
Pid Controllers ◽  
Distributed Arithmetic ◽  
Design And Implementation ◽  
Dsp Builder ◽  
Digital Pid ◽  
Quartus Ii ◽  
Field Programmable

This paper proposes a modularized method for the design and implementation of digital PID controller using DA algorithm based on Field Programmable Gate Array (FPGA) device. It is higher integration, lower power consumption, higher processing speed and more convenient reconfiguration compared with PID controllers based on software. The PID controller is modeled by using Simulink and DSP Builder to generate a system model. The controller coefficients are tuned conveniently by simulink and then pre-written into Look-up Tables(LUTs) in model of the proposed PID controller. After modeling, the simulation wave of step response for proposed PID controller is obtained easily by simulink. And the model of digital PID based on DA is then compiled by using Signal Compiler tool in DSP Builder provided by ALTERA corporation and synthesized by using QUARTUS II platform, and then the created file is downloaded into ALTERA’s FPGA device to implement the proposed PID controller.

scholarly journals ANALYSIS OF EFFECTS OF USING 9/7 WAVELET COEFFICIENTS IN MULTI-RESOLUTION ANALYSIS

2016 ◽  
Vol 2 (1) ◽  
Author(s):  
Manish Sharma ◽  
Prof. Sonu Lal
Keyword(s):  
High Speed ◽  
Utilization Efficiency ◽  
Parallel Structure ◽  
Discrete Wavelet ◽  
Distributed Arithmetic ◽  
Fpga Design ◽  
Multi Resolution Analysis ◽  
Field Programmable ◽  
On Chip ◽  
Area Efficient

Conventional distributed arithmetic (DA) is popular in field programmable gate array (FPGA) design, and it features on-chip ROM to achieve high speed and regularity. In this paper, we describe high speed area efficient 1-D discrete wavelet transform (DWT) using 9/7 filter based new efficient distributed arithmetic (NEDA) Technique. Being area efficient architecture free of ROM, multiplication, and subtraction, NEDA can also expose the redundancy existing in the adder array consisting of entries of 0 and 1. This architecture supports any size of image pixel value and any level of decomposition. The parallel structure has 100% hardware utilization efficiency.

Fuzzy PID Control for Fast-Steering Mirror System

2014 ◽  
Vol 568-570 ◽  
pp. 1026-1030
Author(s):  
Xue Jin Bai ◽  
Yong Ming Qiao
Keyword(s):  
Control System ◽  
Transient Process ◽  
Pid Control ◽  
Pid Controller ◽  
High Speed ◽  
Mirror System ◽  
Pid Controllers ◽  
Fuzzy Pid ◽  
Fuzzy Pid Control ◽  
Fuzzy Pid Controller

Fast-steering mirror system demands higher accuracy and fast responding speed to track targets, but the conventional PID controllers cannot meet the demands. Instead, the fuzzy PID control can greatly improve the capturing and tracking capacities to high-speed dynamic targets. So we apply the fuzzy-PID controller in the positioning loop of the stabilized system, not only improving the transient process of the control system and decreasing the overshoot, but also enhancing the accuracy of tracking stabilization and response. At the end, simulations were performed to test the effectiveness of this method through the MATLAB platform.

Research on Novel Self-Spinning High Speed On/Off Valve Based on Fuzzy-Logic Parameter Self-Tuning PID Controller

2012 ◽  
Vol 468-471 ◽  
pp. 1448-1452 ◽  
Author(s):  
Jian Chen ◽  
Jian Ping Shu ◽  
Mian Li ◽  
Qi Zhou ◽  
Zhu Ming Su
Keyword(s):  
Fuzzy Logic ◽  
Control System ◽  
Pid Controller ◽  
High Speed ◽  
Position Control ◽  
Open Loop ◽  
Axial Position ◽  
Valve Body ◽  
Loop Control ◽  
Self Tuning

The flow rate of a novel self-spinning high speed hydraulic on/off valve is regulated by changing the relative axial position (the duty cycle) of the valve spool to the nozzles located on the valve body through driving a gerotor pump using brushless direct current motor. The closed loop axial position control system of the valve spool with feedback of the axial displacement of the valve spool has shorter response time, and not more ripple of output pressure than corresponding open loop control system. A fuzzy logic parameter self-tuning PID controller is investigated to overcome nonlinearity of the control system. The simulation results show that the overshoot is decreased greatly than conventional PID controller.

Study on the Control System of the Electro-Controlled Steering Damper Based on Magnetorheological Fluid

2010 ◽  
Vol 44-47 ◽  
pp. 2627-2631 ◽  
Author(s):  
Jian Guo Cao ◽  
Xin Hua Yang ◽  
Jie Xu
Keyword(s):  
Control System ◽  
Pid Controller ◽  
High Speed ◽  
System Modeling ◽  
Magnetorheological Fluid ◽  
Steering System ◽  
Dynamic Equations ◽  
Simulation Language ◽  
Working Medium ◽  
Working Principle

This paper introduces a kind of electro-controlled steering damper’s structure and working principle which uses the magnetorheological fluid as the working medium. In order to design the controll system of the electro-controlled steering damper, the model of the steering system and the damper based on magnetorheological fluid are established through the dynamic equations, and a PID controller is used. At last, the paper simulates the controll system using a simulation language Modelica on Works, which is a simulation flatform for comp lex physical system modeling and simulation. The results show that the damper can effectively increase the stabilizing speed of the steering system, decrease the over run of the vehicle’s yaw speed, and improve the vehicle’s steering stabilization, especially when the vehicle running in high speed.

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