WIRELESS ELECTRICAL APPARATUS CONTROLLING SYSTEM WITH SPEED CONTROL OF AC MOTOR USING RF-COMMUNICATION

B.PRANEETHA; T.SOWMYA REDDY; B.SIRISHA REDDY; M.Kumar Yadav; SURAYA MUBEEN

Volume : VI, Issue : IV, April - 2017

WIRELESS ELECTRICAL APPARATUS CONTROLLING SYSTEM WITH SPEED CONTROL OF AC MOTOR USING RF-COMMUNICATION

B. Praneetha, T. Sowmya Reddy, B. Sirisha Reddy, M. Kumar Yadav, Suraya Mubeen

Abstract :

It is one of the real time applications in industry now a days all electrical devices in Industry are controlled by man power , But in industry so many electrical devices are there. To control all electrical devices we need a 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 need some wireless controlling systems, One of the 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- Technology, This is not only used in industry but also used for 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 for old persons, why because you can switch ON/OFF load with remote, without moving away from your place, In this project we have six on/off loads and one variable 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, AT89S52 microcontroller, 16X2 LCD, BT136 TRIAC And some discrete components. There are two main sections one is transmitter and Receiver let us explain about transmitter (TX) , Transmitter contain one RF Transmitter , HT12E (encoder) and 8 ON/OFF switches, when we are press one switch, the data from switch taken by encoder(HT12E) is given to Transmitter, The simple transmitter it at RF frequency range(433MHz), At receiver side we are receiving data from Transmitter which is given to decoder (HT 12D) the decoder decodes the data which has received from RF receiver , decoded data is given to AT89S52 , Inside controller there is a S/W Program according to that program, AT89S52 controls all electrical loads. iii . The loads we are using here is AC which should not be directly connected to microcontroller it may be destroyed, To avoid such type of drawback we need some drivers, we are using TRAIC as load controller (as a switch) so we need TRAIC drivers. To drive these AC loads, we are using a combination of (BT136, Moc 3021) Here we use regulated 5V, 500mA power supply. 7805 three terminal voltage regulator is used for voltage regulation. Bridge type full wave rectifier is used to rectify the ac out put of secondary of 230/12V step down transformer