The railway crossing accidents are increasing day by day due to unman railway crossings. This paper presents an automatic control gate system to prevent rail accidents. Pressure sensor, RFID card, Servo motor is used to control the open and close status of the railway crossing gate. In this paper we propose a model where pressure sensor is placed on the railway tracks, RFID tag on the engine an...

This paper discusses the influence of the position feedback sensor technology in servo drive applications. Incremental encoders, resolvers, and sinusoidal encoders are considered. Different hardware and software techniques used for the processing of position measurement signals are presented. Advantages and drawbacks are discussed for each solution. The choice of the best suited position feedba...

We have developed a robust control policy design method for high-dimensional state spaces by using differential dynamic programming with a minimax criterion. As an example, we applied our method to a simulated five link biped robot. The results show lower joint torques using the optimal control policy compared to torques generated by a hand-tuned PD servo controller. Results also show that the ...

In this paper, the hydraulic servo position control system with generalization pulse code modulation (GPCM) control is studied. The flow rate of the GPCM control system is controlled by a series of N solenoid on-off valves which are calibrated having different flow, and are activated by N bits binary pulse codes. In traditional PCM control, the flow rates of valves are arranged increasing accor...

for electric machine, servo drive, object positioning, intelligent control, two-mass load. Abstract— It is known that existing algorithms for control position of precision electric drive of systems with nonliarities: elasticity and friction do not provide damping of autooscillations at infralow tracking speed. Therefore control algorithms, which ensure smooth motion of the load at acceptable tr...

This paper is written as a motivation for the students who are beginning to study the control engineering. Therefore, the below mentioned references are introduced with regard to this fact. The paper shortly presents the procedure of the control design, including a description of a system, an identification of its parameters, a simple and an advanced controller design. The controller design pro...

This paper proposes a servo control system based on a minimal-order state observer for nonlinear systems approximated by piecewise bilinear (PB) models. The design method is capable of designing the state observer and the servo controller of nonlinear systems separately. The approximated system is found to be fully parametric. The input-output (I/O) feedback linearization is applied to stabiliz...

The DC motor is a key element for servo system, and the control quality of control system would be seriously affected by the nonlinear, the parameter uncertain, the inaccurately modeling and some uncertain existing in servo system. So it is very difficult to satisfy control requirements by using the traditional control method. In this paper, the sliding mode control algorithm with reaching law ...

The integrated design was introduced about the pitching part of airborne radar servo system. The paper analyzed both the servo system model and the dynamic character of this system. Then the research about parameter optimization and simulation had been done by using the Matlab. The electromechanical coupling model and the optimization model were built up based on model of mechanism transmission...