Wireless electrical apparatus Controlling System Using RF Communication

Title of the project: Wireless electrical apparatus Controlling System Using RF Communication
Domain: Embedded Systems Design, Wireless Comm.
Software: Embedded C, Keil, Proload
Microcontroller: AT89S52
Power Supply: +5V, 750mA Regulated Power Supply
Display: a) LCD, b) LED
LCD: HD44780 16-character, 2-line (16X2) Communication Device: RF Module 433MHz
Crystal: 11.0592MHz
Applications: Home appliances, industries, manufacturing Companies, shopping malls etc.

ABSTRACT

It is one of real time applications in industry now a days all electrical devices in Industry controlled by manually, But in industry so many electrical devices is there. To control all electrical devices we need lot of “ MAN POWER “ if manpower increases Maintenance cost also increases; this is one of the drawbacks of industry, So to avoid such type of drawback we should need some WIRELESS controlling systems, One of wireless communication system is RF (Radio frequency) communication system, it is very cheap and very easy to implement, That is why we have selected RF- COMM, This is not only used in industry but also used in Domestic Purpose as home appliances controlling using RF remote, some persons who are unable to walk to switch board such type of persons need this type of project and also Who are old persons, why because you can switch ON/OFF load with remote, without moving away from your place,
In this project we have Seven Electrical loads (bulb, AC, motors, heaters, and power controlling systems) in that SIX on/off loads and ONE variable load (SPEED CONTROL or current controlling) in variable load we can vary the load up to 7 steps (either INC or DEC) and also you can control the current though load, In Industry we have different types of loads at different locations.
We can control all loads at a time from one place(control room) without connecting any physical wire between loads and control room, In this project we are using RF transmitter, RF receiver, 89c82 microcontroller, BT136 Triac and some discrete components, In this project we have two main sections one is transmitter and Receiver let us explain about transmitter (TX) , TX contain one RF Tx , HT640 (encoder) and 8 ON/OFF switches, when we are press one switch, the data from switch taken by encoder(HT640) which is given to Tx , the Tx simple transmitter it at RF frequency range(433MHz),
At receiver side we are receiving data from Tx which is given to decoder (HT 648L) the decoder decodes the data which has received from RF receiver, the decoded data is given to MIC (89c52), Inside MIC there is a S/W Program according to that program, your 89c52 controls all electrical loads In this project there is no need any physical conductor between Tx and Rx.
In this project we should notes one think that is AC loads should not directly connected to microcontroller however AC may be entire into controller due to this your controller may be destroyed, To avoid such type of drawback we need some drivers, In this project we are using TRAIC as load controller (as a switch) so we need TRAIC drivers. We have so many Traic drivers one of them is MOC 3021 used as a Traic driver in between Microcontroller to AC loads,



Find The Attached Doc Below.....