Study on Large Area Temperature Control System for a Low-cost PCR Chip

Author(s):  
Sanming Qiu ◽  
Shujing Lin ◽  
Di Chen ◽  
Yihuan Shen
Author(s):  
Peshraw Salam ◽  
Dogan Ibrahim

Control engineering is one of the important engineering topics taught at many engineering based universities around the world in most undergraduate and postgraduate courses. The control engineering curriculum includes both the classical feedback based control theory and the state space theory. The modern control theory is based on the intelligent control algorithms utilizing the soft computing techniques, such as the fuzzy control theory and neural networks. Laboratory work is an important part of any control engineering course. The problem with the modern control theory laboratories is that it is essential to offer simple experiments to students so that they can easily put the complex theories they have learned in their courses into practice and see and understand the results. This paper describes the design of a low-cost fuzzy based microcontroller temperature control system using off the shelf products. The developed system should provide a low-cost fuzzy control experiment in the laboratories for students studying control engineering.


10.29007/w9nq ◽  
2019 ◽  
Author(s):  
Venkat Margapuri ◽  
Mitchell Neilsen

The focus of the paper is to provide a prototype implementation of a temperature control system using the open-source real-time operating system FreeRTOS and communication via a Controller Area Network (CAN). By using low-cost components and open-source software on low-cost STM32F407 Discovery Boards with ARM Cortex M4 processors, this prototype is an ideal target for classroom use. The Discovery boards provide built-in support for 2 CAN buffers, but no transceivers. This paper presents the implementation of a Master-Slave architecture with CAN communication using LibOpenCM3 libraries with FreeRTOS and a more general CAN implementation using Hardware Abstraction Libraries (HAL). The paper further discusses the concepts of CAN messaging and its parameters in detail to be applicable for anyone wanting to set up their own network. In addition to CAN communication between STM32F407 Discovery Boards, this paper also presents a prototype implementation of a temperature control system on STM32F407 Discovery boards showing use of most standard interfaces on the boards such as GPIO and I2C. It describes the hardware components of the system and the software implementation using a combination of HAL, LibOpenCM3, and FreeRTOS.


2012 ◽  
Vol 538-541 ◽  
pp. 3149-3153
Author(s):  
Yi Nan Kong

This paper presents an advanced low-cost temperature control system. The system takes the highest performance-cost ratio as its aim. It uses the low-cost 8-bit MCS-51 MCU and integrated temperature sensor to achieve the on-site control. A lower cost remote host computer can be used in this system. In the case of a relatively larger application, it can be expanded to a control system of master-slave distribution and utilize the computing and storage resources of the microcontroller. It realizes a wider range of temperature adjustment, and then put the state of the system into a database of the microcontroller to be ascertained later.


1985 ◽  
Vol 15 (2) ◽  
pp. 472-474
Author(s):  
D. W. Waldren ◽  
M. K. McKinnis ◽  
W. C. Carlson

A soil temperature control system is described which allows control of soil temperature ± 1.1 °C, maintenance of water-bath level and pot placement during irrigation, and unrestricted soil drainage. The system also allows the use of a large number of pots (300) held at each soil temperature, with a capacity of three seedlings per pot, and is constructed of low-cost, readily available materials. This system facilitates the use of large experimental designs with relatively low labor inputs during the experiment.


2011 ◽  
Vol 66-68 ◽  
pp. 2256-2259
Author(s):  
Li Wu ◽  
Wen Xu ◽  
Jian Guo

In this article, the new method for designing the temperature control system with low vibration for a scanning the given object is proposed. The system uses STC89LE516AD as the CPU, and some peripheral circuits: keypad input circuit, the temperature measurement circuit, and LED display circuit to monitor and control the temperature of the given object. By using a small number of hardware devices and software designation, we realize the function of real-time temperature monitor and control. The results show that our goal to construct the temperature control system for a given object with relatively high precision can be realized by using the proposed method, and the system proved to be strong, low cost, with strong practical.


2017 ◽  
Vol 3 (2) ◽  
pp. 88
Author(s):  
Suci Rahmatia ◽  
Marsah Zaysi Makhudzia

<p><em>Abstrak <strong>- </strong></em><strong>Transformator adalah peralatan listrik yang sangat vital dalam proses pembangkitan maupun transmisi energi listrik karena transformator dapat menaikkan atau menurunkan tegangan. Pada proses menaikkan dan menurunkan tegangan biasanya sering timbul panas akibat rugi – rugi tembaga pada inti besi dan kumparannya sehingga pada kondisi overload akan menimbulkan pemanasan yang berlebih dan dapat mempengaruhi kinerja transformator. Oleh karena itu dibuat sistem kontrol temperatur pada transformer yang dapat mengontrol temperatur di dalam transformator saat bekerja pada kondisi overload, sehigga transformatornya tidak terbakar. Dial thermometer digunakan sebagai alat yang mengontrol temperatur transformator pada sistem kontrol temperatur. Agar mendapatkan sistem kontrol yang optimal, maka setting temperatur pada dial thermometer di sesuaikan dengan temperatur maksimal tranformator dapat bekerja. Sehingga pada saat temperatur tertentu dial thermometer dapat memberikan sinyal untuk membunyikan alarm dan mengaktifkan kontrol kipas sehingga kipas dapat bekerja menurunkan temperatur transformator.<em></em></strong></p><p><strong><em> </em></strong></p><p><strong><em>Kata kunci - </em></strong><em>transformator, rugi – rugi tembaga, temperatur, sistem kontrol, dial thermometer<strong>.</strong></em></p><p><strong><em> </em></strong></p><p><em>Abstract <strong>- </strong></em><strong>A transformer is an electrical device that is vital in the generation and transmission of electrical energy because the transformer can raise (stepping up) or lower (stepping down) the voltage. In the process of raising and lowering the voltage is usually often caused heat loss of copper in iron core and coil so that the overload condition will cause excessive warming and can affect the performance of the transformer. Therefore, a temperature control system on the transformer can control the temperature inside the transformer while working under overload conditions, so the transformer is not burned. Dial thermometer is used as a device that controls the temperature of the transformer in the temperature control system. In order to obtain an optimal control system, the temperature setting on the dial thermometer adjusted to the maximum transformer temperature can work. So that when a certain temperature dial thermometer can provide a signal to sound the alarm and activate the fan control so that the fan can work down the transformer temperature.</strong></p><p><strong> </strong></p><p><strong><em>Keywords -  </em></strong><em>transformator, loss of copper, themperature, control system, dial thermometer<strong></strong></em></p>


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