ER THE GUIDLINCE OFUnder the Guidance of Submitted by Mr.B.SIVAKUMAR K.VENKATRAMREDDY -09TU1A0416 (Asst.Prof ) K.AKHIL -09TU1A0417

OBJECTIVE

The main objective of the project is to control the boat direction to travel in water for ocean research applications

CONTENTSIntroductionBlock DiagramBlock Diagram descriptionSchematic DiagramSchematic Diagram descriptionHardware components Power supplySoftware ToolsApplicationsAdvantages & DisadvantagesFuture ScopeConclusion

INTRODUCTIONThis project is a prototype boat that can travel in water. This

is powered by 9V rechargeable battery. The direction of the boat can be controlled by an RF remote. This can be moved forward and reverse direction using geared motors of 60RPM. Also this robot can take sharp turnings towards left and right directions. This project uses AT89S52 MCU as its controller.

BLOCK DIAGRAM: TRANSMITTER

BLOCK DIAGRAM: RECEIVER

BLOCK DIAGRAM: DESCRIPTION

In this project we are controlling the robotic boat through a wireless RF medium.

4 control switches are used to control the moment of robotic boat.

The control signal from control switches are encoded and transmitted through a RF transmitter circuit.

At the receiving side, RF receiver receive the control signal and decodes it.

BLOCK DIAGRAM: DESCRIPTION

Decode signal is given to microcontroller controller drives motor through H-bridge depending upon the corresponding control signals.

Power supply is drived from regulated power supply.

SCHEMATIC DIAGRAM

SCHEMATIC DIAGRAM DESCRIPTION

Encoder consists 18 pins in 4 pins are connected to 4 input switches ,voltage vcc and 16th pin is connected to transmitter

Transmitter consists 4 pins they are vcc,ant,gnd,data.data line connecte to encoder and Antenna transmit the signal

Receiver consists 8pins and it is connected to decoderDecoder consists 18pins.decoder connected to micro controller port1 It has 40 pins and it is in dual in package It has 4 ports, 6 interrupts and 2 timersPort2 is connected to H-bridgeH-bridge having 16pins.4out put pins are connected to two dc

motors 

HARDWARE COMPONENTS

AT89S52 MCU STT-433 MHz Transmitter STR-433 MHz ReceiverHT12E RF EncoderHT12D RF DecoderMotors of 60RPM

A microcontroller is a small computer on a single integrated circuit containing a processor core, memory, and programmable input/output peripherals. Program memory in the form of NOR flash or OTP ROM is also often included on chip, as well as a typically small amount of RAM.

Microcontrollers are designed for embedded applications, in contrast to the microprocessor used in peripheral computers or other general purpose applications.

WHAT IS MICRO CONTROLLER…?

MICROCONTROLLER(AT89S52)

It has 40 pins and it is in dual in package It has 4 ports, 6 interrupts and 2 timers It has RAM of 128bytes and ROM of 4KB It is used for interfacing of the input and output modules

PIN DIAGRAMPIN DIAGRAM

1234567891011121314151617181920

4039383736353433323130292827262524232221

P1.0P1.1P1.2P1.3P1.4P1.5P1.6P1.7RST

(RXD)P3.0(TXD)P3.1

(T0)P3.4(T1)P3.5

XTAL2XTAL1

GND

(INT0)P3.2(INT1)P3.3

(RD)P3.7(WR)P3.6

VccP0.0(AD0)P0.1(AD1)P0.2(AD2)P0.3(AD3)P0.4(AD4)P0.5(AD5)P0.6(AD6)P0.7(AD7)EA/VPPALE/PROGPSENP2.7(A15)P2.6(A14)P2.5(A13)P2.4(A12)P2.3(A11)P2.2(A10)P2.1(A9)P2.0(A8)

AT89S52

Compatible with MCS-51® Products4.0V to 5.5V Operating Range Three-level Program Memory Lock 256 x 8-bit Internal RAM 32 Programmable I/O Lines Three 16-bit Timer/Counters Eight Interrupt Sources Full Duplex UART Serial Channel Low-power Idle and Power-down Modes Interrupt Recovery from Power-down Mode

FEATURESFEATURES

RF MODULERF MODULE

The transmitter here we are using is STT 433 MHz This transmitter is having 4 pins

Antenna Vcc Data Gnd

The Receiver here we are using is STR 433 MHz The receiver is having 8 pins

Antenna 5)VCC Gnd 6)Data Gnd 7)Data Vcc 8)Gnd

H-BRIDGEFEATURES: 600 mA Output Current

Capability Per Driver Pulsed Current 1.2 A / Driver Wide Supply Voltage Range: 4.5

V to 36 V Separate Input-Logic Supply NE Package Designed for Heat

Sinking Thermal Shutdown & Internal

ESD Protection High-Noise-Immunity Inputs

Technical Specifications: 60RPM 12V DC motors with Metal Gearbox 25000 RPM base motor 6mm shaft diameter Gearbox diameter 37 mm. Motor Diameter 28.5 mm Length 63 mm without shaft Shaft length 15mm 300gm weight 38kgcm torque No-load current = 800 mA(Max), Load current = upto 9.5

A(Max)

DC GEARED MOTOR

POWER SUPPLY This project uses 9V 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.

SOFTWARE TOOLS

Keil Proload

KEIL

Keil compiler is a software used where the machine language code is written and compiled.

PROLOAD

Proload is a software which accepts only hex files.

Once the machine code is converted into hex code, that hex code has to be dumped into the microcontroller placed in the programmer kit and this is done by the Proload.

APPLICATIONS

Industries are using RF solutions for monitoring, control, process,

inventory tracking, and data links and bar code reading devices.

Commercial wireless applications such as door announcers, security

and access systems, gate Control, remote activation, score board and

paging systems.

Automotive companies employing RF for wireless remote control,

remote keyless entry and Safety applications.

Consumer products including electronic toys, home

security, gate and garage door openers, Intercom, fire and

safety systems, and irrigation controllers.

Medical products like patient call and monitoring, handicap

assistance device, surgery

Communication system, remote patient data logging and

ECG monitor.

APPLICATIONS

ADVANTAGES

Not line of sight

Not blocked by common materials: can penetrate most solids

and pass through walls

Longer range

Not light sensitive

Not as sensitive to weather/environmental conditions.

DISADVANTAGES

Higher cost than infraredLower speed: data rate transmission is lower than wired and infrared transmission communication devices using similar frequencies can interfere with transmission

FUTURE SCOPE

This project can be implemented by using DTMF Technology.

CONCLUSION

In this project we have studied and implemented RF controlled Robotic Boat to travel in water for ocean research applications.

 

 

QUERIES ?

THANK YOU