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The temperature of agricultural film unit affects the plastic film directly. Since unit heating process has the characters of time delay, nonlinear, time-varying and strong coupling. It is difficult to create a mathematical model structure of plastic melting process. Thus, temperature control is very...

We have designed the control system for ink keys of press based on DSP controller TMS320F2812. The operator can remotely control the position of any ink key of ink fountains with a high precision. The upper computer can communicate with any DSP through SCI to transmit the control instructions.

A greenhouse monitoring and control system based on Zigbee networks was developed. This system consists of greenhouse data acquisition controller and greenhouse remote monitoring and control software. The system could monitor temperature and humidity, soil water content and concentration of carbon dioxide...

A servo control system and servo position signal acquisition system based on PHILIPS ARM7 series kernel LPC2292 were designed. The principle and construction of the position control module was discussed in detail. The accuracy of controlling system was verified using Matlab code. Results show that the...

Most controllers used in power system such as PID controllers are based on linearization without considering the external disturbance. In this paper, the disturbance observer is introduced in HVDC control. Firstly, the model of HVDC system considering the disturbance is established. Then disturbance...

This paper introduces the design idea and realization method of AC constant current source, which is composed of direct digital synthesizer and digital potentiometer. The design has advantages of simple structure, strong practicability, high stability and high precision, and equipped with a standard...

In the traditional missile longitudinal loop design, the additional pitch angle feedback, trajectory inclination angle and attack angle outputs may cause the missile control system become unstable and cannot provide the fast and accurate control. In this paper, the author build up a longitudinal loop...

In order to improve the flow velocity control accuracy of hyperthermia apparatus, reduce the overshoot and steady-state time of system, a fuzzy PID control algorithm is proposed in this paper. The algorithm is the composition of fuzzy control and PID control, which makes the system not only has a fast...

IETF has specified Mobile IPv4 and Mobile IPv6 in RFC3344 and RFC3775 respectively, but not yet discussed Mobile IPv4/v6 in any published RFC. This paper proposes a scheme to solve one of Mobile IPv4/v6 problems which Home Agent (HA) locates in IPv6 network, and Correspondent Node (CN) locates in IPv4...

A kind of integral sliding mode surface method is firstly used in the height loop of airship system based on the assumption that the pitch angle control loop is stable. The expected pitch angle signal is caused by the sliding mode surface which is produced by height error .Compared with traditional PID...

This paper presents the design and implementation of a 17 DOF humanoid robot for rescue and disaster management operations. This innovative robot is equipped with 17 DOF (Degrees of Freedom), providing it with flexibility to replicate various human movements and capable of navigating challenging terrains,...

In view of the temperature control system has nonlinear, time-varying and hysteresis characteristics, and traditional PID control method adaptability poor, robustness is not strong and other issues, using the combination of fuzzy control and PID method, designing temperature control system based on embedded...

Complex of cell-THPC-thiourea-ADP with lanthanide metal ions Dy3+ has been prepared. The thermal stability and smoke suspension of the samples are determined by TG, DTA and cone calorimetry. Experimental data show that for the complexes of cell-THPC-thiourea-ADP with the metal ions, thermal decomposition...

Flexible polyurethane foam has been treated with borax, expanded graphite (EG), EG/borax as flame retardant, respectively. The thermal degradation of samples has been studied by thermogravimetry (TG) and differential thermogravimetry (DTG) in air. From the resulting data, kinetic parameters for different...

Recent developments of EEDI (energy efficiency design index) which is an indicator of ship’s energy efficiency level imposed the cost effectiveness of sea-going vessels. Optimization of the ship’s total energy system is studied in this paper. This study is focus on optimum load sharing control, which...

In this study, an acid and alkali resistance cationic polyacrylamide flocculants (P(AM-MAPTAC)) was synthesized through copolymerization of acrylamide (AM) and methacrylamido propyl trimethyl ammonium chloride (MAPTAC) by innovative ultrasonic initiation technology. The structure and thermal decomposition...

This paper first introduces the algorithm of Kalman wave. Because random disturbance noise is uncertain, unpredictable, and the mean and variance of noise, for this kind of interference, taking maximum a posteriori (MAP) noise estimator is Sage - Husa to estimate the disturbance of the system noise and...

In order to solve the problem that the cuckoo search algorithm is easy to fall into local optimal value and cannot find global optimal value, propose improved cuckoo search algorithm based on local search optimization strategy. By extreme dynamic optimization algorithm local search operator is introduced...

This paper studies and designs a temperature control system based on single-chip microcomputer as the core of the intelligent electric heating boiler, and the fuzzy control algorithm is adopted in the control strategy. PID control, SMITH algorithm, DAHLIN control and fuzzy control method are commonly...

This paper mainly studies the steering and speed cooperative control system of electrical vehicles, and establishes relevant mathematical model. A control approach is proposed by combining adaptive smith predictor and fuzzy PID controller. The results show that the adaptive smith-fuzzy PID controller...

The boiler control system studied in this paper applies advanced PLC, digital adjusting instrument and imported full-automatic combustion process controller, and it is designed to an advanced full-automatic control system of boiler by combing PLC (programmable) technique, technique of digital adjusting...

With the disadvantages of large time-varying, non-linearity and uncertainty, it is hard to establish a precise mathematical model for the current DC thyristor rectifier equipment load which results in conventional PID control performance degradation. A control strategy based on fuzzy PID advanced control...

For the lack of the fuzzy self-adaptive PID controller which applied in the industrial process controla new kind of fuzzy self-adaptive PID controller was introduced. Fuzzy Control part will have the ability to automatically adjust the control rules by plusing a fuzzy self-adjustment factor based on...

As a long-range precision guided high-tech weaponry, the cruise missiles have the advantages of strong penetration prevention capability, diversification of tactical use, and economical efficiency etc. After the Gulf War, many countries competed for research and develop the cruise missile. In this paper,...

A design method of intelligent car based on Fuzzy PID control algorithm was introduced here. By detecting various signals with sensors, both dc motors located on the left and right were controlled to achieve functions including track-finding automatically and overtake alternately. The proposed algorithm...

Magnetic iron concentrate beneficiation process, in order to improve the grade of iron concentrate powder, electromagnetic magnetic separation equipment can be used to realize. The use of PLC technology, PID control of self-optimization control algorithm, by controlling the magnetic field intensity and...

The high voltage direct current transmission based on voltage source (VSC - HVDC) technology has been widely used in transmission areas. Aimed at the problem of the low Steady-state accuracy and weak anti-interference ability for the traditional PI control, a control strategy based on ADRC was proposed....

Comparison with conventional manual adjustment to control the drop speed in clinical infusion, the infusion monitoring system can achieve much more high reliability and efficiency, and is easy to realize the automation of infusion. So the infusion monitoring system has been designed in the last papers....

as the foundation and critical part of the free Space optical communication, the electro-optical tracking system is a typical nonlinear system. However, the angular accuracy should be better than a few micro-radians to meet the requirement of the communication link construction between two terminals....

The anchor is the core component of vessel mooring system, of which an accurate and efficient control mechanism plays important roles in ensuring the optimal operation conditions. For the limit in reliability and automation, traditional relay logic control is gradually unable to meet the requirement...

Epoxy resins modified with low-viscosity hyperbranched epoxy were prepared. The tensile strength, flexural strength, impact strength, fracture toughness, glass transition temperature (Tg) of the cured samples were investigated. The results show that the addition of hyperbranched epoxy improves the overall...

The whole system is composed of STM32 embedded system module, gyroscope MPU 9150 module, DC Blower module,trestle module,power module, LED and LCD display module, key mode selection module,alarm module.Wind pendulum control system is based on STM32 embedded system, using STM32 as control system,using...

This paper introduces self-adaptive fuzzy PID controller to improve static and dynamic performance of magnetic suspension systems aiming at the characteristics of nonlinearity, hysteresis and uncertain model of the systems. The simulation results demonstrate that this fuzzy self-adaptive PID controller...

New free radical-cationic hybrid photopolymer, consisting of acrylate-based and epoxy-based photosensitive resin for stereolithography was prepared. The influence of the initiator sort and amount on the curing degree of the photopolymer was investigated. Photopolymerization process, degradation temperature,...

The traditional PID controller has a shortage of an-interference performance, parameters setting and time-varying control. In order to improve the output-voltage performance of the inverter and robustness of battery energy storage system power supply, this paper put forward a control method based on...

Korean culture has created a new trend among Indonesians in terms of in terms of music. K-Pop boyband became so popular among female teenager and young adults. The emotional connection between fans and their idol in K-Pop boy band is called parasocial relationship, a specific form of celebrity worship....

A quadcopter controlled by PID which uses STM32 as its main control unit and can achieve autonomous goods transporting and positioning with GNSS (Global Navigation Satellite System) has been designed. To control its attitude, a dynamic model has been describe with the collected data of attitude of quadcopter,...

Aimed at implementation puzzles of fuzzy PID controller because of computational complexity, in this paper, for the dynamic modeling and parallel computation ability of Elman NN (Neural Network) authors utilized an equivalent Elman NN to accurately approximate the dynamics of an known fuzzy PID controller....

A dynamic Grey Wolf Optimizer (GWO) is proposed, noted as DGWO2, and a novel dynamic improved GWO algorithm is obtained after transferring the mutation operator and the eliminating–reconstructing mechanism to the DGWO2, noted as DMR-GWO2. A Type-2 fuzzy predictive compensation PID trajectory tracking...

In order to improve the performance of fertigation equipment, a fertigation control system based on ARM and C/OS-II is developed. Serial screen is adopted to improve the performance of human-machine interaction, and to decrease the load of MCU. Several tasks related to the control system and fertigation...

In control systems, it is usually short of quantified comprehensive performance index which results in the global optimization and parameter tuning problems. Aimed at these puzzles, in the paper, the comprehensive performance modeling and optimizing problem are studied based on the combing approach EK&NN...

For optimization problem in complex systems, normally, the objective funtion with respect to decision-making variables is hardly obtained or quantified. In this paper, a novel approach is presented. Its first procedure is to model the objective function by fitting experimental data with NN. Secondly,...

In this study, the pyrolysis of Zichang˚Coal (ZC) was investigated by thermogravimetry (TG) using three˚Catalysts, and the yields of the products obtained from pyrolysis, as well as gas˚Composition, were investigated by gas˚Chromatography (GC) using a fixed-bed reactor. The˚Catalytic mechanism was discussed...

It is less likely to construct an exact mathematical mode as actual industrial processes are featured with non-linearity and uncertainty, which further causes the conventional PID controller to fail to achieve an ideal control effect. In this paper, a PID controller parameter optimization method was...

The differential study of electronics for rear-wheel drive was studied recent years, the output speed is the system variables and the PID control strategy is the base, system strategy for rear-wheel drive was designed and differential system was simulated. Results show that through the calculation and...

Nanocrystalline CeO2 powders were synthesized using stearic acid and cerium nitrate by sol-gel and self-propagating combustion coupled method. Influence of various molar ratio of stearic acid and cerium nitrate on the products grain and colour were discussed. Powder appearance, crystal phase, specific...

This paper studies the fuzzy PID controller design algorithm, and it has set up a hardware platform for the temperature control system thermal analyzer, respectively with MATLAB tools to conventional PID and fuzzy PID control method has carried on the simulation analysis, and in the actual building experiments...

This article first introduces the basic theory of fuzzy control and design of the general steps of the fuzzy controller, the basic principle of fuzzy PID is presented. Then use particle swarm algorithm to optimize fuzzy rules. In the end, the optimized fuzzy PID triaxial stability for unmanned aerial...

The study proposes optimization strategies which based on nonlinear and fuzzy control of coordinated control system of thermal power unit. On the basis of direct energy balance(DEB) method, variable gain and nonlinear course are introduced to improve features of control system and PID parameters are...

Under the background of energy shortage and environmental pollution, the development and utilization of building water energy and resource utilization have actively responded to the construction of the national sponge city and are in line with the sustainable development strategy. It can not only solve...