Fuzzy Self-Adaptive PID and Realization in Electric Heating Furnace System

2011 ◽  
Vol 225-226 ◽  
pp. 651-655 ◽  
Author(s):  
Sue Wang

This paper introduces the idea of fuzzy self-adaptive PID algorithm. In order to compare the control effects of traditional PID, fuzzy control and fuzzy self-adaptive PID algorithm, simulation was carried out .The results show that the fuzzy self-adaptive PID controller has the characteristics of fast response time, less overshoot and small steady-state error and has extremely high interference rejection capacity. The software of SCM (Single-Chip Microcomputer) realizes the algorithm. The controller is applied to electric heating furnace temperature control system and the practical application shows that the controller achieves a satisfied control effect.

2014 ◽  
Vol 599-601 ◽  
pp. 1124-1127
Author(s):  
Ya Juan Chen

The fuzzy PID controller is almost realized by single chip microcomputer software, its real-time and anti-jamming are poor. This artical uses FPGA as the core controller and adopts the idea of modules, a fuzzy PID temperature controller is designed and achieved. Actual operating result shows that this method can significantly improve the control effect, simplify the design, but also can improve the real-time and anti-jamming capability of the system.


2013 ◽  
Vol 416-417 ◽  
pp. 890-894
Author(s):  
Xiao Hui Guo

Tobacco Warehousing is chiefly applied to preserve the tobacco that is separated into leaf and stem so that the tobacco moisture is controlled at the range of technology demand.The present control method of tobacco save is that the references of every PID control link are set up and adjusted by human experience. So, the control effect varies with the individual and the output tobacco moisture can't maintain stable.The fuzzy-PID temperature system is based on CC2430 single chip. It includes the power source, the manipulative algorithm, the temperature examination , the correspondence of up PC and the output-control of the switch value and so on. Computer takes the parameter deviation and the deviation change as input, and the PID controllers parameters of ΔKp, Δki, ΔKd as output. The sub program realized the corresponding events by completing zone bit and zone bit judgment. The main program realized temperature control function by calling the wireless micro-controller sends a signal to the charged unit


2011 ◽  
Vol 328-330 ◽  
pp. 2427-2431 ◽  
Author(s):  
Wu Wen ◽  
De Hua He ◽  
Hua Feng ◽  
Peng Gu

Structured Cabling is not a demonstrative course, but a course to stimulate students’ learning interest and to improve experiment’s efficiency. Unfortunately there are some disadvantages for experimental instruments on the present market, such as low testing speed, low automation level and less functions, etc. A multi-processor structure is proposed in this paper, which consists of a 32-bit ARM processor S3C2440 and a 8-bit Single Chip Microcomputer STC89LE54. This structure is used to develop a new network cabling experimental instrument, which is based on embedded system. The instrument can achieve precise processing, such as synchronous data acquisition for wire cores of 32 standard network lines according to EIA/TIA568A Standard or EIA/TIA568B Standard, display and data storage, etc. The instrument has characteristics of high efficiency, fast response, automatic identification, and ease of use. It is used to implement consistency between teaching and job training. Therefore it has high practical value.


2012 ◽  
Vol 268-270 ◽  
pp. 1406-1409
Author(s):  
Jun Liu ◽  
Zhen Wei Jia ◽  
Rong Xing Guo

This paper is to design a kind of temperature control system that could satisfy the requirement of baking equipment used for farm product. The system installed an AT89S51 single chip microcomputer as controller. The structure of the system was loop-locked and the temperature was detected by a team of DS18B20 digital sensors. The simulation of the temperature control system was implemented by the Simulink. The result indicates that the system can realize the function of controlling the temperature variation of the baking house.


Author(s):  
Fengyun Xie ◽  
Shaoshi Yan ◽  
Jiankun Dong ◽  
Yongqi Jiang ◽  
Yu Fu

In the rail transit industry, the electric locomotive’s electric motor is used as the driving core, and its installation and working environment are often harsh, and the probability of failure will increase accordingly. If the motor fails during the operation of the locomotive, it will cause huge economic losses, and even threaten people’s lives and property. In order to grasp the running status of the motor in real time, an online monitoring system of the motor status is designed. This system collects the three parameters of temperature, current and speed, and inputs the three-parameter data into the single-chip microcomputer. The single-chip microcomputer transmits the data to the host computer through calculation. The host computer analyzes and displays the data through LabVIEW to realize online monitoring of the motor status. Experiments show that the system has a good man-machine interface, a wide speed range, high accuracy, fast response speed, and strong anti-interference ability, which is of great practical value for online monitoring of motors.


2015 ◽  
Vol 734 ◽  
pp. 255-259
Author(s):  
Ting Wang ◽  
Hao Wang

An intelligent system for water temperature control is designed in this paper based on STC89C52 single-chip microcomputer, in which temperature sensor DS18B20 is used to collect temperature data. This system adopts successive approximant algorithm and incremental PID control algorithm to change PWM pulse outputted by single-chip microcomputer and thus can realize heating and cooling function within a range between 30 °C and 100 °C as well as automatic control on constant temperature randomly set in the whole process. Result of experiments and tests indicated that this system can function stably, which can realize satisfactory control result and meet design requirements.


2011 ◽  
Vol 65 ◽  
pp. 411-414
Author(s):  
Duo Ning ◽  
Ya Hua Liu ◽  
Jian Bing Huang

In order to make temperature increases rate of the heating module of leather shrinkage temperature apparatus meets leather shrinkage temperature measurement standards in national light industry, we used a temperature sensor to collect the current temperature value of the heating medium. A single-chip microcomputer (SCM) controls the turn-on and turn-off time of triac to ensure a uniform and constant medium temperature increase at (2±0.2)°C/min through negative feedback control. We were also able to transmit the temperature-time data to a host computer in real time via RS232 serial port for further study. Experiments show that this heating module gives a good control effect to the whole system and meets the measurement standards. It is particularly important to improve the accuracy of measuring shrinkage temperature of leather.


2014 ◽  
Vol 960-961 ◽  
pp. 493-497
Author(s):  
Jin Li

An intelligent electric heating oil heater control system is designed in this paper. It takes the single chip microcomputer as the core controller; detects environmental temperature using the temperature sensor; controls opening and closing of electric heating oil heater according to the temperature user set; checks whether there is person indoor using the body detection sensor, if there is no, the oil heater is power off automatically; detects environmental humidity using the humidity sensor ,deciding whether the oil heater is turned on according to the current humidity sends out the alarm; detects oil heater placement using the angle sensor for detecting oil heater placement, Unable to start the oil heater. When the electric oil heater stands upside down or is set flat or inclined, it will send out the alarm. At the same time, the system is provided with keyboard and display circuit, which are used to set the various functions, such as setting the child lock and displaying the corresponding information.


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