The wireless control system simulation and network adaptive control

Abstract EN

At present time a trend is centered around the use of applications that work in real time.

Challenges in real time network control systems have become the subject attention of researchers in this field.

The presence of time delay that affects the stability of the system is the main problems facing these systems.

This paper aims to discuss the impact of the network in control systems and the solutions to reduce the problems in the systems, a True time toolbox was chosen as a tool used for co-simulation between network and control system designed in MATLAB program.

By comparing the performance of the servo-motor system before and after putting wireless network it was found that the time delay is due to sending and receiving packet between the plant and controller.

The Servo-Motor system was also used for studying the effect of the presence of intermediate nodes during transmission.

It was observed that an increase in the number of nodes (2, 5, 15 and 20) decreased the stability of the system reaching to instability due to the large interference with other nodes for a specific value of data rate used.

Therefore, it is found that the data rate of the wireless network must be changed as the same percentage increase in the number of nodes in order to avoid delays as a result of interference with an intermediate node in the road, also to keep the battery age and making the system works for a longer time.