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Design of Temporal Logic Embedded Controller for Small Oven Process
Vichitpon Boonpranchoo,Viriya Kongratana,Vittaya Tipsuwanporn,Arjin Numsomran 제어로봇시스템학회 2011 제어로봇시스템학회 국제학술대회 논문집 Vol.2011 No.10
This paper presents the approach to design Temporal Logic embedded controller for temperature control applications that require both precision control and affordable costs. The proposed Temporal Logic embedded control system which is based on form of On-Off control devices can provide high precision and accuracy, furthermore; decrease the damage to contactors and valves by slowing down the control cycling. The performance of control system was tested with Fio board, STM32F103RE ARM 32-bits microcontroller, Real-Time Workshop Embedded Coder and Simulink program. The time domain characteristics were compared with On-Off Stateflow and PID control method. The experimental results have been shown that the design of Temporal Logic embedded controller can achieve the performance specification requirement in temperature control.
System Identification Of the Two Tanks System Subjected to WirelessHART Delays
Napasool Wongvanich,Pongsakorn Somkane,Viriya Kongratana 제어로봇시스템학회 2018 제어로봇시스템학회 국제학술대회 논문집 Vol.2018 No.10
This paper proposes an integral-based method for parameter identification of the coupled tank model used in level control. The plant uses WirelessHART communication protocol to interact between devices in the system, which has a data update rate of 8 seconds, causing time delay impacting the stability of the control system. Two models are considered. The first model is the simple linear model where the delay from the WirelessHART is assumed to be negligible. The second model extends this first model, and introduces nonlinearity from the WirelessHART delay into the model. Results showed that although the both the linear and non linear models provides a good match to the WirelessHART-affected plant responses, the nonlinear model provides on average a 25% better match than the linear model. This model and method can be used to design a more effective controller to combat the WirelessHART induced delay systems.
Transformation Petri Nets Model to PLC Instruction list
Prapas Roengruen,Chatchai Phatharasaiyakul,Suphan Gulpanich,Viriya Kongratana 제어로봇시스템학회 2008 제어로봇시스템학회 국제학술대회 논문집 Vol.2008 No.10
The Programmable Logic Controller (PLC) is widely used in Flexible Manufacturing Systems (FMS) since the PLC has many ways to program e.g. Function Block Diagram (FBD), Instruction List (IL) and Ladder Diagram (LD) etc., but most of them don’ have model graphic design. This paper illustrates the program developed on Delphi compiler for transformation Petri Nets Model to PLC’ Instruction list groups. Therefore the PLC can import text file data from the developed program. This way is one of the most peculiar ways to make the controlled program more flexible for rapid product prototyping, and agile manufacturing.
PLC-based Mobile Mecanum Robot As Multipurpose Vehicle
Napasool Wongvanich,Suphan Gulpanich,Taweepol Suesat,Viriya Kongratana 제어로봇시스템학회 2018 제어로봇시스템학회 국제학술대회 논문집 Vol.2018 No.10
This paper presents the mobile robot that is able to mobilize in every direction through the use of four DCmotors-powered mecanum wheels. Each wheel can be programmed to rotate independently, allowing the vehicle to move in any direction without first turning, and thus can be used to navigate in narrow fields. The robot is controlled through the use of the Programmable Logic Controller CP1H-XA40DT-D, that takes the user intended direction from a joystick command and converts this command into movement vectors in conjunction to the mathematical kinematics model of the mecanum wheels. The motors themselves are controlled from the PWM signals. Two speed experiments were conducted. The first experiment tests the speed of the robot in a no-load environment, whilst the second tests the robot speed in a 50-kg loaded environment. Results show that the maximum attainable speed is around 31.9 ms<SUP>-1</SUP> with a drop of about 10% for the case of the added load from the no-load condition. This result validates the proposed applicability of the prototype as a wheelchair as well as a self-control shopping cart.
Model based control of the heat exchanger system with accumulative heat reservoir
Panuwat Ahpichitpongchai,Kamonchanok Kamonwattana,Wiriya Intarit,Napasool Wongvanich,Viriya Kongratana 제어로봇시스템학회 2019 제어로봇시스템학회 국제학술대회 논문집 Vol.2019 No.10
This paper designs a model based control system for the heat exchanger system with accumulative heat reservoir. The heat exchanger system was firstly modelled through the set of five differential equations, that also take into account the heat accumulation inside the reservoirs. Temperature data was obtained through the use of a temperature sensor (LM 35) which is connected to LabView through a DAQ. The collected data was then processed using an integral based method to determine the parameters of the heat exchanger system. The appropriate PID gains are selected by pole placement methodology. Results show that the set of PID gains that were determined through the use of calculations outperformed the arbitrary chosen set of gains.