Category: Electrical Projects

AIM:

Blind stick Robot projects main idea is to implement a application which can sense the vehicle path and trace details using a wireless system for a autonomous robot.

This project use Infrared technology to trace the shorter distance objects. Infrared works as a remote wireless system which is mainly used for shorter distance communication like television and audio systems. This paper contains working principle of the project with hardware requirement along with block diagram.

DESCRIPTION:     

  Robot direction control is based on the obstacle sensing using IR sensor which gives the voltage depends on the distance of object. This voltage is fed to the analog to digital converter.  Micro controller reads the digital data and controls the robot direction to the left or right. 

COMPONENTS: 

• At89s52
• LCD
• L293d
• Robot
• IR sensor
• MCP 3208 

SKILL SET: 

• Functionality of Microcontroller
• Embedded C programming
• Concept of IR sensor 

Autonomous robot project main objective is to develop a application which can sense objects in the path when vehicle is in move. This application uses Infra red sensor technology to sense objects which are present in front of the moving object. Infra red is a regularly used in short distance remote systems like audio and video systems like tv and audio systems. This application works for only short distance. 

This application uses GP2Y0A21YK0F which is a distance measuring sensor which is integrated with IR,PSD and IRED. In general there are many factors like temperature, and environmental factors which will cause sensors a wrong information or errors in calculating distance but in this system triangular method is used which solve this problem and calculate accurate distance between objects. This sensors can also be used as proximity sensors and the distance measurement is from 10 to 80 cm. 

The micro controller always measures the voltage giving by the sensor and whenever the obstacle occurs it takes a control action to turn into a left/right direction. Hence the robot avoids the colliding from any object. 

APPLICATIONS: 

• In military applications
• Industrial automation

Manchester code decoding controls the robots direction by TV remote projects explains about developing a robotics application which can run just by a TV remote. Basically small range remote control systems like video and audio controls run using infrared rays which is just a light which cannot visible to human eye. So developing a remote controlled robot using IR technology will be cheaper and easy but which can work at small range.

         This projects main idea is to sense robots motion and control its motion using wireless IR data communication. When we access the remote by pressing a key, the IR transmitter sends a signal to the Receiver which is assembled to the robot as bursts of non-visible light. The Receiver in the other end is a photodiode or photo receptor that detects and captures the light pulses, which are then processed to retrieve the information they contain.

Here we are using TSOP1738 receiver, it collects the signal that is transmitted from the IR transmitter and it gives the signal in the form of RC5. Then the microcontroller captures the RC5 format and controller performs the necessary action by sending the data to the robot through a DC motor driver L293D, like moving the robot LEFT, RIGHT, FRONT or BACK. Advantages are easy to use, simpler and quicker. Applications are for sending robot’s to harsh environments, industrial applications etc.

download  Manchester Code Decoding Controls the Robot Direction by TV Remote project.

Intruder Alarm system project main idea is to develop a application which can provide security for house from thief. Generally burglars enter in to house from windows or from main doors. So this application works on infrared signals. IN this system there are two types of systems one which works internally and one which work externally. This project mainly deals with internal design i…e, system setup is inside the house. External setup is not accurate and there are chances of wrong calculation. Infrared rays are connected to control panel which is connected to external devices like alarms, mobile phones. Whenever doors are opened infrared rays will send signals to control panel and it will set alarm or call to police or owner based on our initial setup.                                 

The major action in this system is controlled by transmitter section; this section consists of IR transmitter and IR receiver. Here we need to generate IR frequency continuously, so that by using a small tiny microcontroller, frequency is produced and is connected to the IR led to generate IR light rays of 38 kHz frequency.

IR receiver continuously receives the signals from the transmitter .when ever the light path in between IR transmitter and IR receiver cuts by an intruder, receiver signal gives low to high pulse. By connecting the receiver output to the micro controller interrupt pin, it gives interrupt to the microcontroller. Immediately the system gives the buzzer.

 Applications can be used in areas where Trespassing is prohibited, Industries where authentication is required and people who need privacy. 

download Intruder Alarm System Project Abstract.