A PROJECT PRESENTATIONON

DC MOTORS REMOTE CONTROL WITH FEEDBACK

(ZIGBEE BASE)BY

UMAR SHUAIBU(Roll no. 140125014)

1.0 INTRODUCTION

DC motors provide excellent control of speed for

acceleration and deceleration. The power supply of a DC

motor connects directly to the field of the motor which

allows for precise voltage control, which is necessary for

speed, position and torque control applications.

1.1 AIM AND OBJECTIVES

The main aim of this project is to design dc motors remote

control with feedback based on the zigbee protocol, with

the following objectives

Designing the remote section and the monitoring and

control section

Programming the controllers in the remote as well as the

control and monitoring section.

Configuring the xbee modules, one as the network

coordinator and the other as end device/router

1.2 APPLICATION OF THE PROJECT

The control of machines and processes as well as the data accessibility

in some areas in some industries like nuclear, chemical etc, become

problematic. This project can serve to minimized or completely

eliminate those hazards by providing the wireless option in controlling

those machine as well as allowing the access to data in those areas.

 

2.0 CONTROL STRATEGIES

There are two microcontrollers in this system

one is located in the control and monitoring section, and the

other is at the remote location.

In order to operate the motors in the remote location from the

control section, the control panel containing the control keys

are used. as can be describe as follow

The control key is pressed from the control panel

The key is then detected by the microcontroller in the

control section.

The microcontroller encoded the command and send it to

the zigbee module configure as network coordinator using

UART protocol

The zigbee module is then transmitted this command to

the remote location.

Another zigbee in the remote location which is configure

as router/end device received this command, and then

send it to the remote controller also using UART protocol

The remote controller then decodes the command and

translates it into motors rotation.

there is encoder attached to each motor, which produce

pulses with the rotation of the motor

This pulses is then fed to the frequency to voltage converter

which convert it to voltage and then the voltage is fed back

to the microcontroller

When any motor failed, then there will be no pulses

produce by the encoder attached to that motor

This technique is used to detect the failure of any of the

motor and transmit to the control section for monitoring

purpose

BLOCK DIAGRAM

3.0 RESULT

There are total of seven different control keys in the

control panel with each having specific control

command, below is the control table

It is observed that at starting up, if any of the motors is

having failure, this failure is not immediately detected, it

is detected only when the next command is send but after

that, the system continue to operate as desired. The

following assumption was made while designing this

system.

The failure of any of the motor or motors is/are detected

only when that motor or motors is/are rotating. This

means that:

If any or all motors is/are not commanded, it failure

cannot be detected, hence that motor/motors is/are

Assume to be in good condition, therefore good condition

will be the feedback status.

Below is the complete circuit diagram of this project

CONCLUSION

Applications of high performance DC motor drives in area

such as rolling mills, chemical process, electric trains,

robotic manipulators and the home electric appliances

require direction and speed control to perform tasks. DC

motors have direction and a speed control capability,

which means that speed and direction of rotation can be

changed at anytime to meet new condition.

 

THANK YOU ALL