PC Based Industrial Automation with auto/manual modes of Operation

cavalcadehorehoundMechanics

Nov 5, 2013 (3 years and 9 months ago)

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PC Based Industrial Automation with auto/manual modes of Operation


Synopsis


One of the 8051s many powerful features is its integrated
UART
, otherwise
known as a serial port. The fact that the 8051 has an integrated serial port means that
you may very ea
sily read and write values to the serial port. If it were not for the
integrated serial port, writing a byte to a serial line would be a rather tedious process
requiring turning on and off one of the I/O lines in rapid succession to properly "clock
out" ea
ch individual bit, including start bits, stop bits, and parity bits.

However, we do not have to do this. Instead, we simply need to configure the
serial ports operation mode and baud rate. Once configured, all we have to do is write
to an SFR to write a va
lue to the serial port or read the same SFR to read a value from
the serial port. The 8051 will automatically let us know when it has finished sending the
character we wrote and will let us know whenever it has received a byte so that we can
process it. We

do not have to worry about transmission at the bit level
--
which saves us
quite a bit of coding and processing time.

By using this project one can control his various electrical appliances by means of
PC using PC’s hyper terminal window. The speed of a fan

also can be varied depending
on the user’s requirement. LED Indication is provided on the Kit for on/off condition of
appliances and fan speed indication.

This project is best suitable for homes, hotels and showrooms to control all the
electrical applianc
es and fan speed from a centralized point. This project uses regulated
5V power supply.

Existing system:

1.

Controlled Machine operators

2.

Complex Design system


Proposed system:

1.

PC based controlling

2.

Flexible

3.

Accuracy



Block Diagram:

























Microcontroller

Power Supply

Manual Switches

Serial
Communicatio
n

Driver Unit

Device1

Device2

H
ardware
Tools:


1.

AT 89S
51 Micro controller

2.

Serial Communication

3.

Relay driver circuit

4.

Keypad

5.

Power Supply Unit


Software Tools:

1.

KEIL IDE

2.

Embedded c

3.

Flash Programmer

4.

O
rcad

5.

Visual Basic6



Applications:


1.

Automation industries

2.

Shopping malls