WELCOME To PROJECT CIRCUIT DESIGN

Search

Rabu, Mei 08, 2013

Spy Robot


Remote Operated Spy Robot Circuit


Here is a remote operated spy robot circuit which can be controlled by using a wireless remote controller. It can capture audio and video information’s from the surroundings and can be sent to a remote station through RF signals. The maximum range is 125 meters. It overcomes the limited range of infrared remote controllers. This robot consists of mainly two sections. They are explained in detail below.

Remote Control Operated Spy Robot Circuit – Block Diagram

Remote Control Operated Spy Robot Circuit - Block Diagram



1. Remote Control Section


The circuit uses HT 12E, HT 12D encoder and decoder. 433MHz ASK transmitter and receiver is used for the remote control. H-bridge circuits are used for driving motors. Two 12V DC/100RPM gear motors are used as drivers. The working of the circuit is as follows. 


When we are pressing any key in remote controller the HT 12E generate 8 bit address and 4 bit data .The DIP switches are used for setting the address. Then the ASK transmitter sends the 8 bit address and 4 bit data to the receiver Then the ASK receiver receives the 8 bit address and 4 bit data and HT 12D decoder decodes the data, thus enabling the appropriate output. Thus the output signals that are generated controls the H-bridge which then rotates the motors. 


The 433 MHZ ASK transmitter and receivers are extremely small, and are excellent for applications requiring short-range RF remote controls. The transmitter module is only 1/3rd the size of a standard postage stamp, and can easily be placed inside a small plastic enclosure. The transmitter output is up to 8mW at 433.92MHz. The transmitter accepts both linear and digital inputs and can operate from 1.5 to 12 Volts-DC, and makes building a miniature hand-held RF transmitter very easy. The 433 MHZ ASK transmitters is approximately the size of a standard postage stamp 


433 MHZ ASK receivers also operate at 433.92MHz, and have a sensitivity of 3uV. The receiver operates from 4.5 to 5.5 volts-DC.
Remote-Control-Operated-Spy-Robot-Circuit-Remote-Control-Section

2. Video Transmission Section



In this project we are using a wireless CCD camera. Now these types of cameras are commonly available in the market. It works on 12VDC supply. 


To know more about CCD camera, click on the link below.

The 12 Volt DC supply is taken from the battery placed in the robot. The camera has a receiver, which is placed in the remote station. Its output signals are in the form of audio and video. These signals are directly connected to a TV receiver or a computer through a tuner card. 
Remote Operated Spy Robot - Remote Control Section
Remote Operated Spy Robot - Remote Control Section

Components Required

ICHT 12E1
HT 12D1
LM 78052
TRANSISTORTIP 1274
TIP 1224
S 80504
DIODE1N 41488
RESISTOR1K4
220E4
39K1
1M1
ASK TRANSMITTER433 MHz1
ASK RECEIVER433 MHz1
DIP SWITCH2
PUSH TO ON SWITCH4
GEAR MOTOR12V DC 100rpm2
BATTERY12V 1.3 Ah   rechargeable1
9V1
WIRELESS CCD CAMERA1


Construction

T


he steps for the construction are… 


1. Take a hylam sheet with (20cm*15cm) size. 


2. Fix two gear motors (12VDC 100rpm) in the hylam sheet by using aluminum pieces and nut bolts as shown in the figure below. 


3. Fix the ball castor as shown in the figure below.
Construction of Remote Operated Spy Robot Circuit
Construction of Remote Operated Spy Robot Circuit
4. Then fix the battery (12VDC 1.2Ah) on the top of the spy robot as shown in the figure below.


Construction of Remote Operated Spy Robot Circuit – Top View


5. Connect two motors to the PCB. The PCB is then connected to the battery.


6. Connect the wireless CCD camera to the battery.


7. Connect the camera receiver to the TV or computer. Video information’s will thus appear in the screen.


8. Switch on the remote controller and control the spy robot.



source:


http://www.circuitstoday.com

Tiada ulasan:

Catat Ulasan

Popular Project

Another Project Blog

Project From Diff Blogger

Links

How to Find the other Websites of a Person?


DomainTools

Whois Source Logo



BetterWhois.com: Search ALL Domain Registrars

Webcams.travel - The Webcam Community - Home




Terdapat ralat dalam alat ini

Web_Cams_Travel