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Active In SP

Posts: 1,124
Joined: Jun 2010
04-10-2010, 01:37 PM


In the present world of wireless technology every thing is going to be digital and wireless, and the cell phone is the key player in wireless technology today.
And today technology made the possessing of a mobile, considered as a basic commodity.
And the trends in wireless technology changing day-by-day and today the working is going on how to develop remote devices with out the presence of man and to reduce to the time factor and labor, and our project and implimentation belongs to that race and by using it we can control any electronic devices through a touch cell phone, with one Call.
Presentation outline
-Project is like how to control electronic devices by using cell phone.
-The Components used are two Nokia Mobiles , a PC, and a Microcontroller.
-The Electronics devices that are demonstrated in the project and implimentation is a calling bell, a motor and a mini fan.
-How ever by making small changes any electronic devices can be controlled.
Major components of the project and implimentation
-Relay Unit.
-Loads [2].
-Power Supply

Active In SP

Posts: 1,124
Joined: Jun 2010
15-10-2010, 09:24 AM

.doc   rf freqency robot.doc (Size: 88 KB / Downloads: 237)

This project and implimentation is based on VTU syllabus. The proposed system is based on ATMEL 89S52 µcontroller which is in our syllabus.
For doing this project and implimentation we use some of the software like
 Embedded C for programming the application software to the microcontroller.
 Protel schematic software is used for designing the circuit diagram for this project and implimentation.
 Express PCB software is used for designing the PCB for this project and implimentation.
(Since PCB making is a big process and involves lot of machineries which are expensive, we are going to outsource this to the manufacturer.)
The present condition in Industry is that they are using the crane system to carry the parcels from one place to another, including harbor’s .Some times the lifting of big weights may cause the breakage of lifting materials and will cause damage to the parcels too.
Application of the proposed system is for industries. The robot movement depends on the track. Use of this robot is to transport the materials from one place to another place in the industry. IR transmitter and receiver are used to find the obstacles in the path. RF transmitter and receiver are used to send/receive the command from/to robot/control unit. The IR and RF technology is one of the most widely used wireless communication technique in most of the embedded applications. For RF communication we are using the transmitter and receiver in the range of 433 MHz. for IR transmissions the IR led is used in the frequency of 38 kHz.
 Power Supply :5V/12V DC
 Micro controller :Atmel AT89S52
 LCD :16x2 characters
 Proximity metal sensor.
 DC motors(12V DC)
 DC motor driver (L293D)
 IR transmitter and IR receiver.
 RF transmitter and RF receiver
 Memory(24C04)
 RF card & RF reader
 Switches
 Siren

 Embedded C
 VB
This project and implimentation is used to transport the materials from one place to another place in industries.
This robot vehicle has the facility to find out its path. The path is tracking by proximity sensor. First, RF card number (Location) has to be loaded into the memory, this is done by using switch1 and switch2 is used for storing corresponding number. After pressing the Start switch (switch3), according to sensor output signal the microcontroller controls the vehicle by using (forward/reverse/stop) the left and right side of the DC motor which are placed in vehicle. IR transmitter and receiver are used to find the obstacles in the path. The IR led will be switched on/off at a frequency and is received by the IR receiver. If any obstacle is placed in the path The IR sensor fails to receive the light rays, this time it gives a signal to the microcontroller that an obstacle is present in the path. The microcontroller will stop the vehicle immediately and siren will ON. After 1 minute the robot will check the path status. If obstacle is removed the robot will move forward. Else robot will send message to control room. After 5 minutes the robot will check the path status. Still obstacle is not cleared the robot will turn in the opposite direction and it will travel to starting place.
From the control office we can control the robots by sending commands from PC,this commands is encoded and sent through RF medium, the RF receiver in the vehicle will receive the commands and send to the microcontroller. The microcontroller will convert the decoded data and do the corresponding action. the RF encoder (12 E)and RF decoder (12 D), which consists of 12 address bits and 4 data bits, so software written inside both the microcontroller will convert the user data into 4 bit encoding form. The transmission is done under the frequency of 433 MHz.
For more information about this article,please follow the link:
Active In SP

Posts: 1
Joined: Mar 2011
06-03-2011, 09:20 PM

thank u i have got lot of information
seminar addict
Super Moderator

Posts: 6,592
Joined: Jul 2011
27-01-2012, 10:20 AM

to get information about the topic industrial automation using cellphones full report,ppt and related topic please refer the link bellow





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