Coal Mine Detect and Rescue Robot Embedded Project

AIM:

The main aim the project is to design “Embedded control system design for coal mine detect and rescue robot”.

COMPONENTS:

AT89S52, Gas sensor, Fire Sensor, Driver IC, DC motor, and ZigBee.

EXISTING METHOD:

The present existing method is without monitoring the environmental conditions inside coal mines, persons are sent inside and sensors are connected to their helmets, based on the sensors sensed information if any dangerous gases are detected buzzer present on the helmet turns ON.

The main disadvantage of this method is it gives information to the people present inside the coal mines only and sensed information cannot be sent to control room to take necessary actions.

PROPOSED METHOD:

In the proposed method we overcome the disadvantages present in the existing method by developing a robot to which controller, sensors, buzzer and wireless communication system called ZigBee is attached to it.

Before sending the persons inside the coal mines first the robot is sent and it monitors the environmental conditions inside coal mine using sensors and send the sensed information is sent to the control room using the wireless technology and if detects the dangerous gases inside the coal mines it automatically turns on the buzzer connected to it so as to alert people inside it.

The system uses a compact circuitry built around AT89S52 microcontroller Programs are developed in Embedded C. Flash magic is used for loading programs into Microcontroller.

BLOCK DIAGRAM:

TRANSMITTER:

RECEIVER:

SOFTWARE: Embedded ‘C’
TOOLS: Keil, Flash magic
TARGET DEVICE: AT89S52 Microcontroller.
APPLICATIONS: Used at coal mines.
ADVANTAGES: The distance of controlling can also be improved by connecting ZigBee modules in a network.

REFERENCE:

1. The 8051 micro controller and embedded systems by Mazidi.
2. Datasheets and the user manuals of AT89S52.

Wireless Data Encryption and Decryption System

In this Wireless Data Encryption and Decryption System project, we are using PC Keyboard to enter the required text information. The microcontroller accepts this data, encrypts it and then sends it to remote place using the proper code given by the user. The information will be shown on the 16*2 LCD.

The same information will be transmitted to remote place using RF Transmitter Module working on 435 Mhz.

The information is then received at another end with the help of RF Receiver Module. The data is then given to microcontroller which will be decrypted using the same code and finally shown on the 16*2 LCD.

Block Diagram:

(TRANSMITTER)

(RECEIVER):

Medicine Reminder Using DS1307 & I2C Protocol

Aim:

The objective of the Medicine Reminder Using DS1307 & I2C Protocol project is to remind the medicines to the patients at a regular interval of the time according to the prescription.

Outstanding Features:

1. The medicines are reminded to the patients according to the time & doctor’s prescription.
2. Display of digital clock is made on HD77480U, 8-bit data bus, 2 line Liquid Crystal Display Unit.
3. User can enter & change the medicines dynamically by using 4×3 matrix keypad.
4. DS1307 is incorporated in the project to retain the clock & calendar during power failure.
5. DS1307 is incorporated with power failure detecting circuit to switch on to the battery source whenever external power supply is turned off.
6. I2C (Inter Integrated Circuit) protocol is used as an interfacing standards to conserve the number of port pins during communication between RTC (Real Time Clock) & microcontroller.
7. Hardware is incorporated with set of LED’s representing a specific medicine followed by an alarm circuit for turning on buzzer whenever entered time matches.

Components Used:

1. AT89S52 Microcontroller Unit
2. DC Power Supply Unit
3. LCD Unit
4. 4×3 matrix keypad
5. 12v buzzer
6. LEDs
7. BC547 Transistor.

Software & Tools Used:

1. Embedded C Language
2. Keil – 3 Integrating Development Environment (IDE – Evaluation version)
3. Proteus V7.5 Simulator (Evaluation version)

Block Diagram:

Note:

1. Training will be conducted for duration of 20 days on simulator tools and IDE used in this Medicine Reminder project along with the basics of microcontrollers.
2. Student will receive a certificate from Concern Research & Development Center for this project.
3. All pre requisites like Medicine Reminder abstract, flow chart, algorithm, circuit diagram, block diagram will be provided at the time of abstract submission.
4. Medicine Reminder Hardware kit along with its source code will be provided at the time of delivery.

Online Handwriting Recognition using Motion Sensor based Pen Device

With the advances in current technology, we see a rapid increase in availability, but also a demand for intuitive interaction between man and computer. While recognizing has been developed graphically based on the vision, it has some limitations, such as running a camera in one place, with the advantage of using motion sensors to develop a portable device.

Combining the rapid development of man-computer technology and the growth of portable devices, a handheld device integrated with motion sensors has been proposed to recognize handwriting by capturing interaction writing paths.

The goal of this Handwriting Recognition project is to develop a portable pen movement base for the online reorganization of letters or handwritten sensor numbers. Users can use this pen to write letters or numbers in the air.

Signs generated by hand movements are generated by in-device and transmitted to the PC for processing and additional signal recognition via a wireless motion sensor module. A handwriting recognition algorithm will be developed for recognition signals using measured by the sensor.

A portable device will be developed base pen with motion sensors (triassic accelerometer, compass and gyroscope), a microcontroller and a wireless transceiver. This pen-based motion sensor can be used to enter numbers or letters in a free space at normal speed.

The sensors are used to detect hand movements. The microcontroller collects the hand motion sensors and wireless transmitters signals in the main PC processor for processing and recognizing the additional signal via a wireless transceiver.

A Handwrite Algorithm (DTW) recognition is implemented to perform handwriting recognition using the signals detected by the integrated sensors in the device.

Block- diagram:

Water Scheduling for Municipalities Using RTC

The main aim of this student project is to build a Water Scheduling for Municipalities using RTC.

Project Scope:

In main cities the water distribution system was done in regional manner. Normally the municipalities are responsible for this water distribution.

It can be done through manually, but it can’t possible to maintain scheduling for all times. Time lagging is reduced by this system arrangement. So, we go for this real time scheduling of water supply.

In this project we have a RTC (real time clock). We should provide water supply in particular area with in a periodic time interval. This time interval is set in a RTC programming.

These all operations are controlled by the micro controller. The Water scheduling time may be edited by modifying the RTC programming.

Software’s used to develop this project:

  • 1) Keil c
  • 2) Orcad/Express PCB.

Hardware components requirements:

  • 1) Micro controller.
  • 2) RTC
  • 3) Relay
  • 4) Motor
  • 5) Power supply

Block Diagram:

Wireless Controlled Digital Score Board Project

Abstract:

Implementation of a digital score board with wireless control is the aim of the project. A digital score board can be used for football, basket ball and volley ball courts.

It consists of Five various display’s. First one for the countdown timer which can be set according to the requirement with a pause and start function. Second and third for the display name of the Team A and Team B, Each display comprises of four alphabet display capability with letter varying from A-Z and 1-9.The fourth and Fifth display are for the respective 2 digit scores of Team A and Team B .

The whole functioning of the digital score board can be controlled with a wireless remote handed over to the referee; The time can be preset in 4 digit timer i.e. with two display’s for minutes and two display’s for seconds, the timer can be paused and started any moment using the remote. The score can be updated by the referee. Score display can be incremented and decremented as per requirements.

The Digital Score board will be powered with AC power supply. It can also be added with a battery backup depending on the requirement.

Model of digital Score Board

Elevator Control System with Voice Announcement

The Final Year ECE project deals with the design and development of microcontroller based elevator control system with stepper motor, display and voice announcement.

The elevator system can move up, down. It also indicates floor position on seven segment display. The user can control the elevator with the switches provided. The elevator control system is designed with stepper motor mechanism. The stpper motor is driven through L293d motor driver circuit.

The elevator system is designed with five floors with equal heights. The APR9600 Voice Chip Module is used to record and playback voice messages upto 60 sec duration.

BLOCK DIAGRAM:

Software Tools: 

  1. Keil compiler
  2. ucFlash
  3. Embedded C Code

Hardware Tools: 

  1. Microcontroller AT89S52.
  2. Switches
  3. L293D Motor Driver
  4. Bi-polar Stepper Motor
  5. Seven Segment Decoder 7447 IC
  6. Seven Segment Display
  7. APR9600 Voice Chip Module

Touch Screen Based Wireless Home Automation Using Zigbee

When an order is placed by the customer, table_id and order number is transmitted to the coordinator and an acknowledgement is sent automatically to that end device i.e. table and a LED is switched ON at the table device. Now once the order is ready, owner presses the respective button to the table whose order is ready, then the LED at end device starts blinking which will be as an acknowledge to the customer saying the order is ready.

All these information is being stored in data base and will be displayed by using a projector or any other displaying device. Now if another order has to be placed by the customer then he needs to first press any button to make the blinking LED off and then click the respective button for the order and this repeats. Thus the ordering an item at restaurant is being easier and simpler.

SOFTWARE REQUIREMENTS:

a) IAR Embedded Workbench (MCS-51 7.30B)
b) Z-Stack (CC2430 – 1.4.3 – 1.2.1)
c) Byte Wedge Standard for Database

HARDWARE REQUIREMENTS:

a) Intel Pentium based system with Windows XP.
b) Keypads for connecting to the Battery Board at the End Point.
c) Zigbee
d) Antenna

BLOCK DIAGRAM


WORKING PRINCIPLE

This is an Touch Screen Based Wireless Home Automation Using Zigbee Technology application that has tables as End Device and the owner as a Coordinator. The number of tables as per this application is 4 and can be changed according to the user’s requirement. Each table has its own unique table_id. This has to be assigned to the end device in order to differentiate each table.

The table can place an order having four items ranging from 1 to 4 using the four switches available. Here we are sending 11, 12, 13 and 14 from the four switches respectively where for example in “11”, the first digit is the table_id and second digit is the order. As the table_id must change for all the four end devices, the first digit shall be changed for every table.

Once the order is placed by the customer, order is being received by the Coordinator and for acknowledgement coordinator automatically sends back a message and an LED is switched ON at the end device. Now once the order is ready, owner presses the respective button to the table whose order is ready, then the LED at end device starts blinking and the food is being served by the waiter boy.

All these information will be displayed by using a projector or can also be displayed by any other displaying device. Now if another order has to be placed by the customer then he needs to first press any button to make the blinking LED off and then click the respective button for the order and this repeats.

ADVANTAGES

1) No need of man power.
2) We can save time.

APPLICATIONS

1) The counter and customers are connected in a wireless Zigbee network to make the service more efficient.

REFERENCE

1) http://www.palowireless.com/zigbee
2) http://www.circuitsforyou.com

Zigbee Based Wireless Sensor Network Project

Abstract

The Zigbee based Wireless Sensor Network system is developed to gather atmospheric data in hazardous/remote areas. This embedded system project is designed using embedded technology. This project is designed with Atmega 8515 micro-controller , LCD, ADC, Zigbee, temperature and humidity sensors. The Zigbee Based Wireless Sensor Network project involves designing and developing a transmitter and receiver section that can be used for data acquisition with the help of Zigbee modules.

The receiver and transmitter are equipped with the micro-controller. At transmitter side, there are sensors to sense atmospheric physical parameters like temperature, humidity etc. We can use multiple such nodes with many sensors but for demonstration purpose only two sensors are used in this project.

The data is then sent through zigbee module to transmit the signals. The receiver receives the signals and micro-controller decodes and analyzes it. The information is displayed with the help of a LCD.

Zigbee is a wireless network used for home, building and industrial control. It has IEEE 802.15.4 wireless standard for low data rate network. With a maximum speed of 250Kbps at 2.4GHz, zigbee is designed for low power consumption.

Hardware used to develop this Project:

Features

• Can be used in hazardous/remote areas.
• Independent of line-of-sight communication.
• Support for multiple network topologies.
• High data reliability.
• Transmission range available up to 1.6 Km
• Low power consumption.
• Highly reliable, cost effective and compact in size.

BLOCK DIAGRAM

Microcontroller based Smart Parking Control System

This Smart Parking Control System project Designed With Microcontroller attempts to cut the time to park the vehicles in the lot and help the motorists to recall the exact parked space. Motorists often spend a significant amount of time to park their vehicles in the parking lots during peak hours. They also may not remember the parked space of their vehicle precisely, while picking up the vehicle.

To solve this problem, an automated vehicle parking system is designed which serves the motorist to find a space for his vehicle within less time. The system displays about the details of freed-up parking spaces. The waiting time to park the vehicle can be reduced by providing this vacant space information to the motorists before he/she enters the system.

The system recognizes the vacant space and displays automatically, this display system can be provided at the entrance of the main gate, so that while entering in to the parking space, the motorist can find his parking place without anybody’s direction.

To sense the vehicle at parking place, infrared sensors are used; the output of the sensors is fed to micro-controller and according to the received information from the sensors, the controller displays, that the particular parking place is vacant or full. For the demonstration purpose three sets of sensors are used to simulate three parking sites.

The system is designed such that, when all parking sites are filled and there is no space for another vehicle, automatically the gate will be closed. To simulate this, stepper motor is used and the controller drives the motor, a small arm of 10″ is coupled to the motor shaft, which simulates either the gate is opened or closed. For displaying the information LCD panel is connected at the output of micro -controller.