An LED Green Light for New Plant Growth Cabinet Precise Temperature Control System

2014 ◽  
Vol 577 ◽  
pp. 325-328
Author(s):  
Xing Li Wu ◽  
Jiang Lei Dong ◽  
Fan Liang ◽  
Shi Gang Cui ◽  
Li Guo Tian
Keyword(s):  
Control System ◽  
Plant Growth ◽  
Temperature Control ◽  
Control Device ◽  
Temperature Control System ◽  
Advantages And Disadvantages ◽  
Fresh Vegetables ◽  
Environment Temperature ◽  
The Impact ◽  
Temperature Control Device

In the current, people pay more attention on food nutrition and security issues. In some places, the lack of farming land and land pollution leads to serious problem that people could not eat fresh vegetables. In order to solve these problems, "LED smart plant growth cabinet "came into being. As temperature is one of the most important control parameter that has the impact on plant growth, this paper describes a new type of temperature control system, and proposes simple, stable, precise temperature control method. In this paper we propose a new original two-dimensional temperature control strategy, which makes this cabinet has advantage over other domestic products. This paper describes the relationship between environment temperature and plant growth, and illustrates how the temperature control device works. In the experiment, we evaluated the advantages and disadvantages of this temperature control device.

Research on Temperature Control System with a Scaling Factor for Iron Ore Reduction Measuration

2012 ◽  
Vol 542-543 ◽  
pp. 143-146
Author(s):  
Dong Xie ◽  
Jin Liang Shi ◽  
Qun Wei Yu
Keyword(s):  
Control System ◽  
Temperature Control ◽  
Iron Ore ◽  
Fuzzy Controller ◽  
Controller Design ◽  
Control Device ◽  
Temperature Control System ◽  
Ore Reduction ◽  
Control Rules ◽  
Iron Ore Reduction

This paper presents the principle of iron ore reduction measuration system. According to characteristics of temperature developing in experimental, the proper control rules are adopted in different temperature ranges and the self-optimizing algorithm is used in controller design. A new fuzzy controller with self-tuning factor for temperature control system can replace the traditional instrument control device and achieve precise temperature control. The result of experimentation shows that the control system has satisfactory performance with better reliability and efficacy. This method adopted in controller is practical and worthy for reference.

Research and Design of Intelligent Greenhouse Temperature Control System for Energy Saving

2013 ◽  
Vol 648 ◽  
pp. 297-300
Author(s):  
Tao Wu ◽  
Chun Huai Hu ◽  
Rui Qin ◽  
Zhen Qiang Chai
Keyword(s):  
Control System ◽  
Temperature Control ◽  
Liquid Crystal Display ◽  
Control Unit ◽  
Temperature Control System ◽  
Development Environment ◽  
Environment Temperature ◽  
Save Energy ◽  
Environment Experiment ◽  
Research And Design

Temperature is related to various industries. A digital temperature control system is designed in this paper. This system hardware is composed of Freescale micro control unit, DS18B20 temperature sensor, 12864 liquid crystal display, alarm and drive circuit. The program is compiled in Freescale CodeWarrior integrated development environment. Experiment result states clearly that this system can monitor and display environment temperature in real-time and has alarm function. If the temperature is higher or lower than set value, the drive module starts to cool or warm. Some measures to save energy are adopted in this design. It has practical value.

Based on MCU AT89S52 Temperature Control System

2013 ◽  
Vol 441 ◽  
pp. 875-878
Author(s):  
Cai Qing Yue
Keyword(s):  
Control System ◽  
Real Time ◽  
Temperature Control ◽  
High Sensitivity ◽  
Control Device ◽  
Low Noise ◽  
Temperature Control System ◽  
Temperature Function ◽  
The Core ◽  
Actual Operation

The water temperature as the main control objectives, the real-time temperature control system is designed, in this system MCU AT89S52 is used as the core control device, integrated temperature sensor AD590 because of good linearity and high sensitivity, and A / D converter with high resolution and low noise are used for temperature acquisition,the system has achieved the temperature 40 ~ 90°C automatic control, it has set temperature display, real-time display of the current temperature function, after the actual operation shows that the system is better able to control the temperature.

Study on the Correct of Oil Temperature in Wet DCT Gearshift

2013 ◽  
Vol 397-400 ◽  
pp. 524-529
Author(s):  
Wei Sun ◽  
Zhe Ning ◽  
Jin Ma ◽  
Guo Qiang Liu
Keyword(s):  
Control System ◽  
Temperature Control ◽  
Temperature Correction ◽  
Temperature Control System ◽  
Pressure Curve ◽  
Hydraulic Control ◽  
Dynamics Model ◽  
Working Pressure ◽  
The Impact ◽  
Hydraulic Control System

In this paper, a dynamics model for DCT shifting process has been built to analyze the clutch hydraulic control system and make the clutch pressure curve with the affection of temperature. Correction for temperature control system reduces the impact degrees and the friction power even solves the "runaway" phenomenon. Experiment achieves the precise working pressure adjustment of the clutch.

Fuzzy PID Temperature Control System of Reaction Kettle Based on PLC

2013 ◽  
Vol 336-338 ◽  
pp. 423-427
Author(s):  
Qi Chen ◽  
Lin Zhi Liao ◽  
Hong Rong Chen ◽  
Ni Yan Wu
Keyword(s):  
Control System ◽  
Temperature Control ◽  
Control Function ◽  
Field Application ◽  
Temperature Control System ◽  
Fuzzy Pid ◽  
Fuzzy Pid Control ◽  
Time Varying Delay ◽  
Plc Control ◽  
The Impact

Adopt a fuzzy PID control algorithm in order to solve the control difficulty which caused by the uncertainty lag of temperature control in chemical reaction kettle. The algorithm is realized by utilizing PLC system function. The system takes full advantage of the features of PLC control system, such as flexibility, reliability, and strong capacity of resisting disturbance. Field application result shows that the system eliminates the impact of time-varying delay on control function well. It has good robustness.

scholarly journals A registry review of 2532 catheter ablations for atrial fibrillation using active thermal protection

EP Europace ◽  
2021 ◽  
Vol 23 (Supplement_3) ◽  
Author(s):  
L Leung ◽  
A Bajpai ◽  
Z Zuberi ◽  
A Li ◽  
M Norman ◽  
...  
Keyword(s):  
Adverse Events ◽  
Temperature Control ◽  
Real World ◽  
Cardiac Electrophysiology ◽  
Thermal Protection ◽  
Control Device ◽  
Registry Data ◽  
Oesophageal Temperature ◽  
The Impact ◽  
Temperature Control Device

Abstract Funding Acknowledgements Type of funding sources: Private company. Main funding source(s): Dr Leung has received research support from Attune Medical (Chicago, IL). Dr Gallagher has received research funding from Attune Medical (Chicago, IL). Background   Thermal injury to the oesophagus causes a spectrum of adverse effects after ablation for atrial fibrillation (AF); at the most severe end, atrio-oesophageal fistula carries a high mortality rate. Controlled active thermal protection in the oesophagus during ablation is the most promising method of oesophageal protection. Randomized evidence from the IMPACT trial (NCT03819946) showed an 83.4% reduction in endoscopically detected oesophageal lesions compared to standard care when an oesophageal temperature control device was used to control the local temperature. The IMPACT patients who were randomized to the use of the device had no adverse event related to its use.  Real world registry data on applications of this device have not previously been available.  Purpose To determine the safety of an oesophageal temperature control device by review of real-world registry data on its clinical use and any reported device-related adverse events. Methods   We reviewed the following databases for any reported oesophageal temperature control device-related complications: The United States Food and Drug Administration (FDA) Manufacturer and User Facility Device Experience (MAUDE), FDA Medical and Radiation Emitting Device Recalls, the Medicines and Healthcare products Regulatory Agency (MHRA) Medical Device Alerts and SwissMedic records of Field Safety Corrective Actions (FSCA). An internal registry (post-marketing follow up) database maintained by the manufacturer of the device was used to quantify the number used for each indication.  Reported events were reviewed and catalogued for description and identification of any events related to its use in the cardiac electrophysiology lab. The IMPACT study patients were reviewed for any device-related events. Results   Of the 13, 284 oesophageal temperature control devices used, 2532 were recorded as having been used for the purpose of oesophageal protection during catheter ablation for AF.  A total of 5 events associated with the device were identified, all from the MAUDE database.  Three were from 2017, one from 2018, and one from 2019.  All involved its use in critical care or trauma patients and were related to user error or contraindicated patient selection; none resulted in serious harm to the patient. No adverse events occurred related to its use in the cardiac electrophysiology lab. No case of clinically significant oesophageal injury was reported in a patient who had been protected by the oesophageal temperature control device. Conclusions Real world registry data has shown no adverse events reported to date in over 2500 uses of an oesophageal temperature control device in the cardiac electrophysiology lab, for the purpose of active thermal protection. This data supports the randomized trial evidence of its clinical effectiveness. Abstract Figure. Oesophageal active thermal protection

Research on High Precision Temperature Control System of Strap-Down North-Seeking

2015 ◽  
Vol 740 ◽  
pp. 269-273
Author(s):  
Jian Rong Li ◽  
Cheng Wu Shen ◽  
Shao Jin Liu
Keyword(s):  
Control System ◽  
High Precision ◽  
Temperature Control ◽  
Temperature Control System ◽  
Measurement Circuit ◽  
Two Stage ◽  
Temperature Changes ◽  
Environment Temperature ◽  
Precision Temperature ◽  
Precision Temperature Control

In order to make the dynamically tuned gyroscope of Strap-down North-seeking working on the best temperature environment, reduce errors caused by temperature changes, a high-precision temperature control system is built up on the base of control theory and engineering. This system is a two-stage temperature control system. In order to realize high precision temperature control at a predetermined temperature range, temperature measurement circuit is analyzed and calculated on a two-stage temperature control had different measurement circuit match. Experimental results show that the accuracy of can achieve ± 0.1 °Cwhen the environment temperature within the range of-40 °C ~ + 60 °C. It can meet the temperature requirements of Strap-down North-seeking system.

Temperature Control System for Transformer Three-Phase 50 Hz 2500 kVA

2017 ◽  
Vol 3 (2) ◽  
pp. 88
Author(s):  
Suci Rahmatia ◽  
Marsah Zaysi Makhudzia
Keyword(s):  
Optimal Control ◽  
Control System ◽  
Heat Loss ◽  
Temperature Control ◽  
Electrical Energy ◽  
Temperature Control System ◽  
Iron Core ◽  
Electrical Device ◽  
Optimal Control System ◽  
Three Phase

<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>

Temperature control system for cement decomposing furnace based on three-dimensional fuzzy and PID control strategy

2009 ◽  
Vol 2009 (10) ◽  
pp. 37-42 ◽  
Author(s):  
Xuejun Li ◽  
Yuan Zhou ◽  
Guangfu Bin ◽  
Ganqing Chen
Keyword(s):  
Control System ◽  
Temperature Control ◽  
Control Strategy ◽  
Pid Control ◽  
Three Dimensional ◽  
Temperature Control System
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