Saha Embedded Projects

7/31/2019 Saha Embedded Projects

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SAHA

EMBEDDEDPROJECTS

SAHA Software Solutions Private Limited3-2-684/3/K/20, Road No.12, Banjara Hills

HYDERABAD - 500034

Saha Software Solutions Private Limited Page 1 of

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1. GPS based Event Data Recorder for Driver Rating, vehicle trackingsystem

2. MEMS based Event Data Recorder for Driver Rating,vehicle trackingsystem

3. GPS based track sign indicator4. 3D Motion Recorder-Playback5. Active RFID based Asset Tracking Using Zigbee and MEMS6. Active RFID based Car Parking System using Zigbee7. RFID based tool room automation using Zigbee8. Air Mouse

9. Bluetooth Security tagging10. Intelligent LED Based reservation chart Light for Coaches

11. Surveillance of workers in hazardous areas like mines using RFID12. Wireless Two Way Switch

13. Zigbee Based Home automation

14. SOS on GSM15. GSM-IVRS based pump house automation16.Automated meter reading automated metering infrastructure17. Digital Clocks with GPS Synchronization consisting of master clock and

slave clocks18. GPS based destination display boards in Buses/trains

19. Pump house automation based on zigbee and Modbus20. Smart power meter21. Triac Based appliance control22. Tyre pressure monitor23. Weighing bridge trip sheet automation application

24. Wireless sensor networks for smoke and fire protection25. PMU Alarm Monitor Unit26. PMU Auto Main Failure27. PMU Battery Charger Constant Current28. PMU Best Phase Selection

29. PMU DC Energy Meter30. PMU DG Interface GCU

31. PMU Front panel NMU32. PMU GSM Data Logger Monitoring

33. PMU Modbus Protocol34. Railway PWM Dimmer

35. Railways Centralized Fault Locator


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GPS based Event Data Recorder for DriverRating &

Vehicle tracking

Authors

08, January, 2010


HYDERABAD - 500034

WARNINGThis document contains confidential information that could be substantially detrimental to the

interest of Saha Software solutions through unauthorized use or disclose.


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Main Project Title

Fleet Management System

Sub-Project Title

GPS based Event Data Recorder for Driver Rating and Vehicle tracking

Project Description

A Vehicle Tracking System combines the installation of an electronic de-vice in a vehicle, or fleet of vehicles, with purpose-designed computer software toenable the owner or a third party to track the vehicle's location, collecting data inthe process. Modern vehicle tracking systems commonly use Global PositioningSystem (GPS) technology for locating the vehicle, but other types of automatic

vehicle location technology can also be used. Vehicle information can be viewedon electronic maps via the Internet or specialized software. Urban public transitauthorities are an increasingly common user of vehicle tracking systems, particu-larly in large cities.

This Project uses GPS data logged from the modem into an internal flash memo-ry device to be downloaded later onto the desktop using Zigbee Communication.In effect the current application acts as a passive device rather than an activeone which transmits data in real time.

A Desktop Application is provided to prepare a chart of all the drivers on payroll

at the end of the month containing information like Contour of the map roamedfor each day, speed, acceleration & deceleration graphs etc. Based on this datathe Quality of a driver can be rated. By improving the driving style, fuel economycan be improved by 15-20% apart from driving safely. Fleet Managers can usethe resulting system to study driver behavior and to improve the performance andsafety of their services apart from other fleet management functions like routing,dispatch, on-board information and security.

Other scenarios in which this technology is employed include:Stolen vehicle recovery, Asset tracking, Field Service management, Surveillance,Transit tracking etc.


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FUNCTIONAL BLOCK DIAGRAM


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Zigbee

Transmitter

ZigbeeReceiver


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TechnologiesSoftware : Embedded C , Java based desktop applicationHardware : ARM based Hardware, GPS module

Responsibilities Circuit design and PCB layout as per the requirement

Firmware is to be developed as per design document. Various sub-

versions of the code to be available in repository during each cycle of

implementation and testing.

Following are to be documented during the project schedule and internal

versions are to be maintained.

Software Specification Document

Software Design Document

Software Test Procedure

Software release and project document to be completed as per the

release date.


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MEMS based Event Data Recorder forDriver Rating &Vehicle tracking

Authors

08, January, 2010


HYDERABAD - 500034

WARNING

This document contains confidential information that could be substantially detrimental to theinterest of Saha Software solutions through unauthorized use or disclose.


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Main Project Title

Fleet Management System

Sub-Project Title

MEMS based Event Data Recorder for Driver Rating and Vehicle tracking

Project Description

A Vehicle Tracking System combines the installation of an electronic de-vice in a vehicle, or fleet of vehicles, with purpose-designed computer software toenable the owner or a third party to track the vehicle's location, collecting data inthe process. Modern vehicle tracking systems commonly use Global PositioningSystem (GPS) technology for locating the vehicle, but other types of automatic

vehicle location technology can also be used. Vehicle information can be viewedon electronic maps via the Internet or specialized software. Urban public transitauthorities are an increasingly common user of vehicle tracking systems, particu-larly in large cities.

This Project uses a MEMS device which is actually 3-axis accelerometer tosense lateral movement of the vehicle on curved roads. Also concurrently theGPS device logs the position of the vehicle during the journey. This data loggedfrom the MEMS & GPS is stored into an internal flash memory device to bedownloaded later onto the desktop using Zigbee Communication. In effect thecurrent application acts as a passive device rather than an active one which

transmits data in real time. The MEMS device is also configured such that alarmalerts can be given at threshold values that are set for the three axes if the speedexceeds those thresholds.

A Desktop Application is provided to prepare a chart of all the drivers on payrollat the end of the month containing information like Contour of the map roamedfor each day, speed, acceleration & deceleration graphs etc. Based on this datathe Quality of a driver can be rated. By improving the driving style, fuel economycan be improved by 15-20% apart from driving safely. Fleet Managers can usethe resulting system to study driver behavior and to improve the performance andsafety of their services apart from other fleet management functions like routing,

dispatch, on-board information and security.

Other scenarios in which this technology is employed include:Stolen vehicle recovery, Asset tracking, Field Service management, Surveillance,Transit tracking etc.


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FUNCTIONAL BLOCK DIAGRAM


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Zigbee

Transmitter

Zigbee

Receiver


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TechnologiesSoftware : Embedded C , Java based desktop applicationHardware : ARM based Hardware, GPS module, Zigbee module

3-axis accelerometer MEMS (Micro ElectricalMechanical Systems).

Responsibilities

Circuit design and PCB layout as per the requirement

Firmware is to be developed as per design document. Various sub-versions

of the code to be available in repository during each cycle of implementation

and testing.Following are to be documented during the project schedule and internal





Software release and project document to be completed as per the release

date.


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Main Project Title

Automation for Railways.

Sub-Project Title

GPS based track sign indicator

Project Description

GPS based track sign indicator is specially designed system for Railways.A Railway track consists of many track-side signs and symbols, which generallyappears on the left hand side of the track (the assistant driver's side), usuallyplaced a little high and painted on a yellow board. There are different types ofsigns like Speed Limit, Termination Indicators, Stop Indicator, Whistle Indicators,

Catenary Signs, etc. For every sign the driver has to perform particular action.

Problem In current Situation:

It is noticed that in when some of the weather conditions like heavy rain, Fog,Smoke, Dust, Heavy wind. It becomes difficult for driver to notice such signs.This may lead to situation where the driver may not initiate the preferred action ormay delay in the same.

Sometimes the driver just forgets to take the Action, Which in certain cases cancause major problems.

Solution:

GPS based track sign indicator is the idea which can solve such problems. Thisdevice will be placed on the train dashboard which will have a LED display. ThisDisplay will display the same sign few meters before its actual location. Depend-ing upon the importance of the sign the device will also give some Audio visualindications like Buzzer of flashing sign.

Working:

The system has a GPS receiver which will get the Co-ordinates of the current lo-cation of train. These values will be compared with that saved values in the sys-tem on match the particular action will be performed like displaying the sign onLED display, Buzzer.


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3D Motion Recorder-Playback

Authors

08, January, 2010


HYDERABAD - 500034




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Main Project Title

3D Device Tracking

Sub-Project Title

3D Motion Recorder-Playback

Project Description

A 3D Motion Recorder(3DMR) uses a computer, motion sensors (ac-celerometers) and rotation sensors (gyroscopes) to continuously calculate viadead reckoning the position, orientation, and velocity(direction and speed ofmovement) of a moving object without the need for external references. It is usedfor 3D modeling and on vehicles such as ships, aircraft, submarines, guided mis-

siles, and spacecraft. It needs no external references to calculate the values andhence is immune to jamming and deception.

In this project we use the GPS module to get the GPS co-ordinates and thespeed of the vehicle, Accelerometer to calculate the acceleration along the X, Y& Z axis, and gyroscopes to measure the angular velocity of the system in the in-ertial reference frame, continuously.

This system includes at least a computer and a platform or module containing ac-celerometers, gyroscopes, or other motion-sensing devices. It is initially providedwith its position and velocity from another source (a human operator, a GPS

satellite receiver, etc.), and thereafter computes its own updated position and ve-locity by integrating information received from the motion sensors. The advan-tage of a 3DMR is that it requires no external references in order to determine itsposition, orientation, or velocity once it has been initialized.

A 3DMR can detect a change in its geographic position (a move east or north, forexample), a change in its velocity (speed and direction of movement), and achange in its orientation (rotation about an axis). It does this by measuring thelinear and angular accelerations applied to the system.

All the recorded data are logged and analyzed using a desktop application show-

ing the path traveled and can also be used to predict the path of a device usingcertain algorithms. This device can also be used to playback the path traveled bya device in 3D.


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3D MOTION RECORDER


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MICROCONTROLLER FLASH

MEMORYMEMS SPI


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TechnologiesSoftware : Embedded C, Desktop Application.Hardware : ARM based Hardware, Accelerometer MEMS

(Micro Electrical Mechanical Systems), GPS Module,Gyroscopes.

.

Responsibilities




and testing.







date.


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Active RFID based Asset Tracking UsingZigbee and MEMS

Authors

08, January, 2010


HYDERABAD - 500034

WARNING



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Main Project Title

Fleet Management

Sub-Project Title

Active RFID based Asset Tracking Using Zigbee and MEMS

Project Description

The business productivity of any enterprise is invariably tied to how well itskey physical assets are being managed. Knowing what is available, where it is atany given time and what its operational status is, are all critical elements that

have a direct impact on the bottom-line. Presently, companies face many issuesthat make it hard to effectively track their assets.

A more specific problem is the inability to track the assetswhich are in transit for long duration when being transported from one place toanother like delivery etc. What is needed is a better way to keep asset locationand status data up-to-date by aggregating and updating asset data from thesources of information like the MEMS that may co-exist with that particular asset.

In the current project we use a Zigbee module (RFID) that is integrated with theMicro Electrical Mechanical Sensors (MEMS) and attach it to the assets. The

RFID module now automatically senses, records and transmits data regardingenvironmental factors like vibration, temperature, humidity and ambient lightconditions etc influencing the operational life of the assets in transit to enablebetter decision making for the client.

This data can now be displayed on an LCD Screenshowing the status of each slave module and its connected sensors data in realtime and warn if it crosses their respective threshold limits. The data if neededcan also be sent wirelessly via GSM to the central repository and since eachRFID has a unique identification number any number of assets can be easilytracked and monitored remotely without any human intervention.

Some of the scenarios where the project finds applicationare tracking sensitive electronic equipment, expensive goods such as organs,medical blood, medicine and rare wines, precious flowers, high valued sea-foodetc.


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RFID TAG

RFID Receiver


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MEMS

SENSORSTem or li ht

MICROCONTROLLER

RF

MEMS

Lcd

MICRO

CONTROLLER

RF

Buzzer


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TechnologiesSoftware : Embedded C.Hardware : ARM based Hardware, Zigbee Modules, LCD screen,

LEDs and Sensors

Responsibilities




and testing.







date.


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Active RFID based Car Parking Systemusing Zigbee

Authors

08, January, 2010


HYDERABAD - 500034

WARNING



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Main Project Title

Wireless Security Solutions.

Sub-Project Title

Active RFID based Car Parking System using Zigbee

Project Description

Radio-frequency identification (RFID) is the use of an object (typicallyreferred to as an RFID tag) applied to or incorporated into a product, animal, orperson for the purpose of identification and tracking using radio waves.Most RFID tags contain at least two parts. One is an integrated circuit for storing

and processing information, modulating and demodulating a radio-frequency(RF) signal, and other specialized functions. The second is an antenna forreceiving and transmitting the signal. The tag's antenna picks up signals from anRFID reader or scanner and then returns the signal, usually with some additionaldata (like a unique serial number or other customized information).

In the current project we use the RFID properties of a Zig-bee module to identify a vehicle i.e. each vehicle is tagged with a low power Zig-bee device and when it passes through the entrance gate the radio signals arepicked up by the reader device (also Zigbee) to identify the vehicle and match itwith the database of the employee records of the particular company. The same

system is applied at the exit point to take note of the vehicle when leaving.The gate also shows an LED matrix display showing the vehicle slots which areoccupied and which are free so that the vehicle can be guided to the vacant slotsfor parking. This procedure saves a lot of time in searching for an empty slot in avast parking lot and also increases efficiency of maintaining the vehicles.Each parking slot contains a pair of Infrared Sensors in direct opposite pointswith one on the ground and another on the roof. As and when a vehicle is parkedthe sensor picks an obstruction to the line of light and sends a signal to the LEDdisplay to mark that particular slot as occupied. This is a very low cost and effi-cient system to indicate the vacant slots for parking.


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RFID Tag

RFID Receiver


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IRMODULE

DISPLAY

DRIVERS

MICRO

CONTROLL

ER

RF

LEDMATRIX

RF

MICRO

CONTROLLER


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TechnologiesSoftware : Embedded C, LED matrix ProgrammingHardware : ARM based Hardware, Zigbee Modules, Infrared

Sensors, LEDs.

Responsibilities




and testing.







date.


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RFID based tool room automation usingZigbee

Authors

08, January, 2010


HYDERABAD - 500034




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Main Project Title

Asset Tracking.

Sub-Project Title

RFID based tool room automation using Zigbee

Project Description

Radio-frequency identification (RFID) is the use of an object (typically re-ferred to as an RFID tag) applied to or incorporated into a product, animal, orperson for the purpose of identification and tracking using radio waves.Most RFID tags contain at least two parts. One is an integrated circuit for storingand processing information, modulating and demodulating a radio-frequency(RF) signal, and other specialized functions. The second is an antenna for receiv-

ing and transmitting the signal. The tag's antenna picks up signals from an RFIDreader or scanner and then returns the signal, usually with some additional data(like a unique serial number or other customized information).

This project aims to manage tools of the tool roomusing RFID technology, to enhance the productivity. This can be achieved byproviding an automated solution that accounts for the movement of tools in andout of the tool room without having staff employed to manage it.

Passive RFID tags can be employed for thispurpose to tag the tools and then read using an RFID reader that is attached to a

computer with a desktop application to maintain the employee and tool database.For the purpose of automating and having a wider scope of applications likeinbuilt memory for the RFID readers which maintain the employee and tooldatabase for tracking the tools ,Zigbee modules are also used in conjunction.

The RFID tags when taken in/out are read by thescanners and cross indexed in the employees name and stored as an entry inthe Zigbee module that is connected to the reader device All the stored data isthen periodically sent either manually or automatically to the central systemwhere a desktop application is used to get the records of the employee and toolsused respectively.


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BLOCK DIGRAM


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RFID

READER

MICRO

CONTROLLER RS232

PERSONAL

COMPUTER

RFID

TAGS


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TechnologiesSoftware : Embedded C, Desktop ApplicationHardware : ARM based Hardware, Zigbee Modules, RFID tags.

Responsibilities




and testing.


versions are to be maintained. Software Specification Document




date.


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Air Mouse

Authors

08, January, 2010


HYDERABAD - 500034




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Main Project Title

Wireless Appliance Control

Sub-Project Title

Air Mouse

Project Description

In computing, a mouse is a pointing device that functions by detecting two-dimensional motion relative to its supporting surface. Physically, a mouseconsists of an object held under one of the user's hands, with one or more

buttons. It sometimes features other elements, such as "wheels", which allow theuser to perform various system-dependent operations, or extra buttons orfeatures can add more control or dimensional input. The mouse's motion typicallytranslates into the motion of a pointer on a display, which allows for fine control ofa Graphical User Interface.

Over the years mice have evolved from one button apple mousse to scroll ballusing mouse to the current optical mousse using lasers and the recent apple airmouses. A mouse which can be used wirelessly and can do all the functions of anormal mouse and more is the objective.

This project deals with the development of a mousewhich is wireless and can be used on the desktop as well as in the air just like aTV remote, hence named the air mouse. All normal functions like left and rightclicks are enabled in this as well as the scroll button.

The accelerometer MEMS is used to calculate themovement of the mouse from the reference point in all the 3 axes and hence actas a 3D mouse as well as the Z-axis can be used to zoom in and out of thecomputer screen. The gyroscopes are used to calculate the angular accelerationof the mouse when tilted i.e. when the scroll button is clicked and the mouse istilted in a direction the pages are scrolled accordingly and speed can be varied

based on the angle of the tilt enabled. Hence the scrolling of the pages isenabled.


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BLOCK DIAGRAM

Air Mouse Transmitter

Receiver


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MICROCONTROLLER

RFTramsmitter

MEMSSPI

MICROCONTROLLER

RFReceiver

PERSONALCOMPUTER


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TechnologiesSoftware : Embedded C.Hardware : ARM based Hardware, 3-axis Accelerometer

MEMS (Micro Electrical Mechanical systems),

Gyroscopes.

Responsibilities




and testing.







date.


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Bluetooth Security Tagging

Authors

08, January, 2010


HYDERABAD - 500034




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Main Project Title


Sub-Project Title

Bluetooth Security Tagging

Project Description

Bluetooth is an open wireless protocol for exchanging data over short dis-tances (using short length radio waves) from fixed and mobile devices, creatingpersonal area networks (PANs). It was originally conceived as a wireless alterna-tive to RS-232 data cables. It can connect several devices, overcoming problemsof synchronization.

In this project the Bluetooth device is tagged to an item like baggage, and when itis powered on the device is in discovery mode and reads the IDs of all the otheractive Bluetooth mobile devices in range and displays the name on an LCDscreen. A Select button is provided to scroll till the name of the owner of the bag-gage and another button is used to fix the name. On getting a request of confir-mation from the tag in the mobile, the request is confirmed by a simple Yes or a 6digit confirmation code set for the tag.

This application is a very low cost but highly efficient system in notifying the own-er of the property that the item of interest is going out of range and is pro-grammed to give a buzzer alarm. Multiple devices can be tagged to be protectedby this application which is synchronized with the owners mobile.

During the pairing of the device with the mobile the Secure Simple Pairing (SSP)protocol is used to which in turn uses a form public key cryptography and has thefollowing modes of operation:

Just works Passkey entry Numeric comparison Out of band.

Out of band uses NFC (Near field communication) and removes the hassle of en-tering pin number, if both devices are placed nearby (within 10-20cm) authentica-tion is done and pairing is completed.

Using this application a master Bluetooth device (mobile) can communicate withup to seven devices (tags) in a Wireless User Group. This network group of up toeight devices is called a Pico net, which acts like an ad-hoc computer network.Hence the owner can tag seven devices at a time and monitored simultaneouslyfor security.


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Bluetooth ModuleMicrocontroller

LcdKeypad

MOBILE

BT Security Tag


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Technologies

Software : Embedded C.Hardware : ARM based Hardware, LEDs, LCD screen, Buzzer

alarm.

Responsibilities




and testing.







date.


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Intelligent LED Based reservation chartLight for Coaches

Authors

08, January, 2010


HYDERABAD - 500034

WARNING



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Main Project Title

Railway Power Management

Sub-Project Title

Intelligent LED Based reservation chart Light for Coaches

Project Description

Reservation charts are provided for everycompartment of a train but during the night times, reading them is getting difficultdue to lack of sufficient lighting on the platforms. To solve this problem thissolution of an intelligent LED based system is proposed.

In this project an LED reservation chart is providedfor each compartment that provides sufficient illumination to read up to threepages of A4 size paper arranged vertically. These devices on arrival upon astation get the GPS co-ordinates of the station and check if the time is day ornight using the Ambient light sensor and switch on accordingly. When the train

moves they get switched off and this is done using an accelerometer MEMSwhich detects the motion of the train and gets switched ON again on arrival of thenext station. This project can be done as a standalone using only GPS or MEMSbased on the requirement and cost of the item.

When GPS is used the station co-ordinates areused in combination with the light sensor to detect the arrival and departure froma station and switched ON/OFF accordingly. When the accelerometer MEMS isused motion detection is used in combination with the light sensor to switch ONthe light when the train stops and switch off when the train moves.


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BLOCK DIAGRAM


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GPS

RECEIVER RS232

MICROCONTROLLER

LIGHT

MEMSSPI


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Technologies

Software : Embedded C.Hardware : ARM based Hardware, LED lighting device, Ambient

Light Sensor, MEMS (Micro Electrical MechanicalSensors) or GPS module.

Responsibilities




and testing.

Following are to be documented during the project schedule and internalversions are to be maintained.





date.


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Surveillance of workers in hazardous areaslike mines using

RFID

Authors

08, January, 2010


HYDERABAD - 500034




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Main Project Title

Disaster Management

Sub-Project Title

Surveillance of workers in hazardous areas like mines using RFID

Project Description

Radio-frequency identification (RFID) is the use of an object (typically re-ferred to as an RFID tag) applied to or incorporated into a product, animal, orperson for the purpose of identification and tracking using radio waves.

Most RFID tags contain at least two parts. One is an integrated circuit for storingand processing information, modulating and demodulating a radio-frequency(RF) signal, and other specialized functions. The second is an antenna for receiv-ing and transmitting the signal. The tag's antenna picks up signals from an RFIDreader or scanner and then returns the signal, usually with some additional data(like a unique serial number or other customized information).

An RFID system using active tags is a versatile toolin situations involving restriction of access, movement monitoring, communica-tion between operators and a control system, and locating colleagues in anemergency. You can also tag hazardous equipment, such as gas flasks. In an

active RFID system, access control is an inherent feature. Safety and security isthe new dimension that opens up.

In the current project we use the active RFID prop-erties of a Zigbee module to tag an object or person and then use the signalsemitted by them for tracking inside a mine. There are a number of RFID Readersinside the surveillance area at strategic points which pick up the signal emitted byeach tag simultaneously and based on the strength of the signal at each point thedistance or location of each unique tag is indicated on an LCD screen. In theevent of a catastrophe rescue operations can be performed efficiently by locatingthe tags position on the screen which will be a blinking dot and hence preventdeaths.


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RFID Tag

RFID Receiver


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RFLCD

MICRO

CONTROLLER

RFMICRO

CONTROLLER


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TechnologiesSoftware : Embedded C, Desktop Application.Hardware : ARM based Hardware, Zigbee Modules, LCD screen.

Responsibilities




and testing.







date.


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Wireless Two Way Switch

Authors

08, January, 2010


HYDERABAD - 500034




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Main Project Title


Sub-Project Title

Wireless Two Way Switch

Project Description

This project is based on the Zigbee mesh networking and is applied towork as a two way wireless switch i.e. to ON/OFF the electronic equipment ofinterest like light, bulbs, Fans, TVs etc. One Zigbee board acts a switch board

with a button being used as a switch and another board is connected to theequipment to control.

In the current project we take 3 boards for demo purpose.One board acts as Zigbee coordinator cum light board whereas the other twoboards act as the light boards with buttons to acts as a two way switch.

The coordinator starts the network on channel 19 and waitsfor nodes to join the network. After the nodes have joined or binding has beencompleted the two nodes are stored in the binding table. Now communicationcan happen directly between the two light boards without the interference of the

coordinator.

After the binding has been completed the button is used toswitch ON/OFF the light or LED on the light board and now the other board caneither OFF/ON the light depending on the action of other board. If supposeswitch board 1 switches ON the light , the switch board 2 can now switch OFFthe light and then only switch ON the light again and vice versa. Hence a simpletwo way wireless switch can be done.

This application can be used in places where wireless connectivity is cheap andefficient than conventional wiring and constructing.


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Keypad

SWITCH BOARD

ZIGBEE COMMUNICATION

CONTROL BOARD


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MICROCONTROLLER

RF

RF

TRAIC

CONTROL

HOME

APPLIANCMICRO

CONTROLL

ER


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Technologies

Software : Embedded C.Hardware : ARM based Hardware, Zigbee module, LEDs.

Responsibilities




and testing.Following are to be documented during the project schedule and internal






date.


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Zigbee based Home Automation System

Authors

08, January, 2010


HYDERABAD - 500034




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Main Project Title


Sub-Project Title

Zigbee based Home automation System

Project Description

This Project utilizes the Zigbee Networking capabilities to the maximum inautomating the Home and is called the Home automation system. The main ob-

jective of this project is to control and co-ordinate all the sensors or switches inthe home from a central Co-ordinator wirelessly.

The demonstration uses a controller board (featur-ing an LCD panel) and a number of sensor boards. The sensor boards measuretemperature, humidity and light levels, and periodically can send these measure-ments to the controller board. The controller board is configured to display the re-ceived data on its built-in LCD panel. In this application, the controller board actsas the Co-ordinator, two sensor boards act as Routers and two sensor boardsact as End Devices.

The co-ordinator can also can be used to selectthe particular rooms that we want to control and see the devices within that room.

All the devices inside a room are accessed via router for that room. A particularsensor, light or fan can thus be accessed remotely and centrally using the co-or-dinator which sends commands to the router which in turn controls the end de-vices.


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WirelessMicrocontroller

Wireless

Microcontroller

Home

Appliance1Relay

Wireless

Microcontroller

HomeAppliance2

Wireless

Microcontroller

Home

Appliance3

Wireless

Microcontroller

Home

Appliance n

Key Pad

Relay

Relay

Relay

Light emitting diodes


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TechnologiesSoftware : Embedded C.Hardware : ARM based Hardware, Zigbee Modules, LCD screen,

LEDs and Sensors

Responsibilities




and testing.







date.


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SOS on GSM

Authors

08, January, 2010


HYDERABAD - 500034

WARNING



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Main Project Title

Vehicle Tracking System

Sub-Project Title

SOS on GSM

Project Description

SOS on GSM is a GPS based Vehicle tracking system which is capable ofreporting any car accident with precise position information automatically to theEmergency help Number like 100 (police),108(Ambulance),or Family. The mes-sage can be reported via GSM SMS. Apart from this The owner can get the cur-rent location of vehicle just be sending SMS. The system can also sent several

alerts like :

1) Over speed alert > Automatically send alerts when driving speed exceeds userdefined speed2) Position Lock > Automatically send alerts when the vehicle is moved apartfrom its parking position

3) Fencing In (min. 0.18m), multiple points > Alert when moving into securityzone4) Fencing Out (min. 0.18m), multiple points> Alert when moving out of securityzone

5) Panic Button > Emergency report with position information for both personaland vehicle alarm6) Idle time monitoring > An early warning security feature when vehicle is idlelonger than predefined period


According to the survey India is the land of highest deaths in road accidents. Oneof the reasons behind this is delay in the availability of the medical help. In caseof accident either the victim or any other person has to call the help. When acci-dent happens in some remote areas in some cases the victim may not be in the

state to call for help.

Second thing is if your vehicle is stolen there is no way to track it. As well is a carowner has a driver for the car there is know way to check how is he driving yourvehicle in your absence.


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Solution:

This GPS based Vehicle tracking will solve all the above problems. The systemconsists of a GPS receiver, GSM Modem and some sensors like Shock sensor.

Working:

In case of accident the Controller will sense it through shock sensor. It will get thecurrent Location's co-ordinates from GPS receiver. Then By using GSM modemSMS will be send to pre-saved number without human interaction..

In order to get the current location of vehicle the user will send a request SMSand device will reply the position through SMS. The device will be also capable ofsending different types of Alerts as mentioned above. The current location of ve-hicle can be easily tracked on Google map.


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BLOCK DIAGRAM


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RS232MICRO

CONTROLLER

GSM

MODEMMEMS SPI


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TechnologiesSoftware : Embedded C.Hardware : ARM based Hardware, GSM modem, GPS module

Shock Sensor.

Responsibilities




and testing.


versions are to be maintained. Software Specification Document




date.


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GSM/IVRS based pump house automation

Authors

08, January, 2010


HYDERABAD - 500034




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Main Project Title

GSM Switch

Sub-Project Title

GSM/IVRS based pump house automation

Project Description

The GSM/IVRS based pump house automation systemis a system which

provides the facility to control Home appliances and Pumps remotely through

phone. The special feature with the system is it has IVRS that is Interactive voice

response system, through which an authenticated user shall call to the GSMequipment on its prescribed number, go through the menu, select predefined

options and do the operations.


Generally the pump houses are located far from the Farmer's houses. So in orderto operate the pump the Farmer has to personally go to the farm.

Solution:

The GSM/IVRS based pump house automation system is consists of a intelligentmicrocontroller which communicates with GSM module through RS232 by usingStandard AT Command set. The user can control the pump or Home appliancesby calling the specific Number. On call the user will hear the Voice Menu. Ac-cording to the menu user will press the keys on phone. On the Other side the de-vice will receive these key presses as DTMF (dual tone multi frequency) throughDTMF Decoder.


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BLOCK DIAGRAM

Telephone

Device GSM

MODEM

Micro

Controller

DTMF

ENCODER

RELAY

AC

LOAD/

PUMP


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TechnologiesSoftware : Embedded C, Desktop Application.Hardware : ARM based Hardware, DTMF Encoder, GSM Modem

,Voice Recorder.

Responsibilities




and testing.







date.


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AUTOMATIC METER READING(OR)

AUTOMATED METERING INFRASTUCTURE

Authors

25, January, 2010


HYDERABAD - 500034




136


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Main Project Title

Automated metering infrastructure

Project Description

Automatic meter reading, or AMR, is the technology of automat-

ically collecting consumption, diagnostic, and status data from electric energymetering devices and transferring that data to a central database for billing, trou-bleshooting, and analyzing. This advance mainly saves utility providers the ex-pense of periodic trips to each physical location to read a meter. Another advan-tage is billing can be based on near real time consumption rather than on esti-mates based on previous or predicted consumption. This timely information cou-pled with analysis, can help both utility providers and customers better control theuse and production of electric energy consumption. Communication net-works used for AMR include modulated radio frequencies (RF), telephone lines,or the electric power line itself. Depending on the network used, information fromthe meter interfacing unit may be retrieved and stored in intermediate nodes or

delivered directly to the utility.

Centralized data collector transceiver normally sends a signal to aparticular meter interfacing unit serial number, telling it to wake up from a restingstate and transmit its data. The meter interfacing unit attached transceiver sendsdata to the PC based centralized data collector.

MIU and CDC communicate by using zigbee technology. ZigBee isa specification for high level communication protocols using small, low-power dig-ital radiosbased on the IEEE 802.15.4 standardfor wireless personal area net-works (WPANs).

The scope of work includes study of network planning, design anddevelopment of hardware and embedded firmware.


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Block Diagram:-

.

.

Technologies

Software : EMBEDDED C (for ARM BASED CONTROLLER),Network establishment

Hardware : Designing Energy meter and microcontroller ckt

Responsibilities











release date.


136


EnergyMeter1

WirelessMicrocontrollerPC


EnergyMeter2

Wireless

Microcontroller

Energy

Meter N


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GPS BASED WIRELESS CLOCK

Authors

25, January, 2010


HYDERABAD - 500034




136


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Main Project Title

GPS BASED WIRELESS CLOCK

Project Description

GPS based Clock is a LED based real time rugged clock for thedisplay at public places like Railway Stations, Offices, and Parks etc. The clockreceives the time information from GPS housed inside the clock unit. The clockhas self-synchronizes feature with the satellite.

GPSbased clock consists of master and slave clocks. Master clock hasGPS receiver which receives time from satellite. Master clock convertsGMT(Greenwich Mean Time) time toIST(Indian Standard Time) time and sends to

slave clocks.

Slave clocks have RTC which shall be synchronized to the timeinformation received from master clock and displays on led matrix. In case offailure of GPS system, the clocks local RTC time shall be displayed.

Communication between Gps and master is based on RS232protocol.Mater and slave clocks is wireless. Wireless communication network isdeveloped by using ZigBeetechnology.

ZigBeeis a specification for high level communication protocols using

small, low-power digital radios based on the IEEE 802.15.4 standard for wirelesspersonal area networks (WPANs).

The scope of work includes study of network planning, design anddevelopment of hardware and embedded firmware

Block Diagram:-

MASTER CLOCK:


136

Zigbee based

Wireless controller

GPS

Module

Antenna


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SLAVE CLOCK:

Technologies

Software : EMBEDDED C, Programming to display drivers

Hardware : GPS Module, Led matrix display board design

Responsibilities











release date.


136

Zigbee based

Wireless controller

RTC

Display Drivers

Led Matrix

Antenna


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GPS BASED DESTINATION

DISPLAY BOARDS FOR BUSES/TRAINS

Authors

25, January, 2010


HYDERABAD - 500034




136


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Main Project Title

GPS based destination display boards for buses or trains

Project Description

GPS based destination display boards for Buses/trains is a system

designed for displaying valuable information to passengers at the time of

boarding and during the journey. The information such as bus number,

destination and starting station along with direction of journey, present location of

the bus, next approaching station with distance and expected time shall be

displayed on LED matrix display Boards.

The back bone of this system is Global Positioning System.

GPS is space-based global navigation satellite system. It provides reliable

positioning, navigation, and timing services to worldwide users on a contin-

uous basis in all weather, day and night, anywhere on or near the Earth

which has an unobstructed view of four or more GPS satellites.

The system consist of the Intelligent Micro-controller which

communicated to the GPS receiver through RS232.It collects the GPS

string and then parse it to get the current location's Co-ordinates, Current

speed and time. The formatted massage will be displayed on LED matrix

display.

Scope of the project includes writing GPS parser, design and

development of hardware and embedded firmware for Led matrix display

boards and developing a Desktop application for editing and uploading the

route information.


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Block Diagram:-

Technologies

Software : EMBEDDED C, Programming to display drivers

Hardware : GPS Module, Led matrix display board design

Responsibilities











release date.


136

Microcontroller DisplayDrivers

Led MatrixDisplay

Gps Module

Antenna


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PUMP HOUSE AUTOMATIONBASED ON MODBUS AND ZIGBEE

Authors

25, January, 2010


HYDERABAD - 500034




136


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Main Project Title

Pump house automation based on zigbee and Modbus

Project Description

Pump house automation based on zigbee and Modbus aims at Facilitating re-

mote operation & control of multiple pump houses located within a range of 5kms

radius using zigbee Mesh network .The remote pumps shall be addressed using

Modbus protocol on top of zigbee so as to make the system scalable.

The system consists of a Control unit and number of Remote units. For both the

systems an intelligent Wireless microcontroller acts as there brain. Controllerscommunication is based on ZigBee Technology. ZigBee is a specification for high

level communication protocols using small, low-power digital radiosbased on the

IEEE 802.15.4 standardfor wireless personal area networks(WPANs).

The system uses Modbus protocol for controlling devices. Modbus is as serial

communications protocol for programmable logic controllers (PLCs). It has be-

come a standard communication protocol in industry and is now the most com-

monly available means of connecting industrial devices.

The scope of work includes

1. Understanding WPAN using Zigbee

2. Understanding and development of the communication protocol in Embed-

ded C for WPAN

3. Understanding and implementing MODBUS protocol.

4. Design and development of schematic and final hardware.


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Block Diagram:-

REMOTE UNIT:

Zigbee based communicationCONTROL UNIT:-

Technologies

Software : EMBEDDED C (for ARM BASED CONTROLLER),MODBUS Protocol.

Hardware : Designing motor control and microcontroller ckt


136


MotorRTU orControl ckt


PC


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Responsibilities











release date.


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SMART POWER METER

Authors

25, January, 2010


HYDERABAD - 500034




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Main Project Title

Smart power meter

Project Description

Smart power meter system works in a WPAN ie Wireless personal

Area Network which consist of a central monitoring Unit and number of End

Nodes. An End node is basically a smart meter. It's an advanced meter (usually

an electrical meter) that identifies consumption in more detail than a conventional

meter; and communicates that information via WPAN to the central monitoring

Unit. Smart Meters usually involve a different technology mix, such as real-time

or near real-time sensors, power outage notification, and power quality monitor-

ing. The Smart meter is a low cost device which will be fitted in between Home

appliance plug and the wall plug. With the help of sensors the microcontroller col-

lects the power consumed by the appliance, time of usage and sends the same

to the central monitoring Unit.

Conventional electricity meters are normally hidden somewhere on a wall

on the basement, and the only time you realize how much energy youve been

spending is when the bill hit the door. If you knew how much energy you were

consuming at home at any time of the day, we can refrain of using some unnec-

essary energy hog appliances.

Communication between devices is based on ZigBee Technology. Zig-

Bee is a specification for high level communication protocols using small, low-

power digital radiosbased on the IEEE 802.15.4 standardfor wireless personal

area networks(WPANs).

Scope of work includes development of a low cost energy meter with

zigbee transmitter, and a master controller with display of energy consumption

analysis.


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Block Diagram:-

.

.

.

.

.

Technologies


Hardware : Designing Power meter and microcontroller ckt


136


Lcd

Wireless

Microcontroller

Home

Appliance1Power meter


HomeAppliance2Power meter

Wireless

Microcontroller

Home

Appliance3Power meter

Wireless

Microcontroller

Home

Appliance nPower meter


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Responsibilities











release date.


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TRIAC BASED APPLIANCE CONTROL

Authors

25, January, 2010


HYDERABAD - 500034




136


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Main Project Title

Triac Based appliance control

Project Description

A TRIAC or Triode for Alternating Current is equivalent to two silicon-controlled rectifiers (SCRs/thyristors) joined in inverse parallel (paralleled but withthe polarity reversed) and with their gates connected together. TRIAC is abidirectional triode thyristor. This results in a bidirectional electronic switch whichcan conduct current in either direction when it is triggered (turned on) and thusdoesn't have any polarity. It can be triggered by either a positive or a negativevoltage being applied to its gate electrode. The low voltage control side and the

mains side are totally isolated, as opto-couplers are used to fire the triacs.

Triac based appliance control is part of the Industrial automationproject. This system is capable of controlling mains powered appliances usingTriac. It can control numerous kinds of loads such as a lamp, a heater, electricmotors, fans.

Triac based appliances control system consists of two different unitsone is user interface unit and second one is control unit. Control unit is interfacedto the electrical appliances which are to be controlled. User interface unit is eithertouch sensor, a push button or a PC command through which we can control the

electric device by pressing push button or by giving a command through PC.

Communication between user interface and control unit is based

on ZigBee technology. ZigBee is a specification for high level communicationprotocols using small, low-power digital radiosbased on the IEEE 802.15.4standardfor wireless personal area networks(WPANs).

The Scope of work includes a detailed study of various kinds ofloads and design of Snubber circuit for a particular TRIAC (with a given set ofparameters like di/dt, dv/dt). Scope of work also includes the embedded firmware

development for communication with the PC and control of Triac.


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Block Diagram:-

.

.

.

.

.

Technologies


Hardware : Designing Triac control and microcontroller ckt


136

Wireless

Microcontroller

Lcd


HomeAppliance1Triac Based

Control ckt

Wireless

Microcontroller

Home

Appliance2Triac Based

Control ckt

Wireless

Microcontroller

Home

Appliance3Triac Based

Control ckt


HomeAppliance nTriac BasedControl ckt

Key Pad or

Touch Screen


83/136

Responsibilities











release date.


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TYRE PRESSURE MONITOR

Authors

25, January, 2010


HYDERABAD - 500034

WARNING



136


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Main Project Title

Tyre pressure monitor

Project Description

Tyre pressure monitoring systems measure, identify and warn the driverof low pressure. This system generate accurate warnings and can alert the driverinstantly if the pressure in any one tyre falls below a predetermined level due torapid air loss caused by a puncture.

Tyre pressure monitoring system has sensor in each wheel.

Every sensor is connected to wireless controllers .Controllers send pressure datato the master controller which is placed in dash board of the vehicle. Mastercontroller displays each tyre pressure on LCD display. If any tyre has lowpressure then it will warns the driver by making sound through buzzer.

Controllers communication will be based on ZigBeeTechnology. ZigBee is a specification for high level communication protocolsusing small, low-power digital radios based on the IEEE 802.15.4 standard forwireless personal area networks (WPANs).

The scope of work includes study of wireless sensor network,network planning, design and development of hardware and embedded firmwarefor fault location and notification to the Master.


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Block Diagram:-

Technologies

Software : EMBEDDED C (for ARM BASED CONTROLLER),Network establishment.

Hardware : Designing Microcontroller and sensor ckt


136

Wireless

Microcontroller

PressureSensor1

Wireless

MicrocontrollerLcd


Pressure

Sensor2

WirelessMicrocontroller PressureSensor3

Wireless

Microcontroller

PressureSensor4

Buzzer


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Responsibilities









Software Test Procedure Software release and project document to be completed as per the

release date.


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WEIGH BRIDGE TRIP SHEETAUTOMATION APPLICATION

Authors

25, January, 2010


HYDERABAD - 500034




136


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Main Project Title

Weighing bridge trip sheet automation application

Project Description

Weighing bridge trip sheet automation application aims to make trip

sheet maintenances of the vehicles easy. This application will show how many

trips a vehicle has gone, which type of material it has taken to the quarry, weight

of the material.

Weighing bridge application is developed by using Wireless Microcon-

trollers. One controller will be in the weigh bridge, which will take the weight of

the vehicle and sends to the vehicle controller. Vehicle controller will store the

data of type of material weight and vehicle number. All vehicles data will be col-

lected at garage. The person who has hand held device will collect the data of

vehicles. Hand held device sends data to the PC through rs232 port. PC based

application will stores the data in database.

Communication between controllers is based on ZigBee Technology.

ZigBee is a specification for high level communication protocols using small, low-

power digital radiosbased on the IEEE 802.15.4 standardfor wireless personal

area networks (WPANs).

The scope of work includes study of wireless network planning, design

and development of hardware and embedded firmware for notification to the

Master and development of PC based user interface.


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Block Diagram:-

DATA COLLECTOR UNIT:-

WEIGH BRIDGE UNIT:

VEHICLE UNIT:-


136

Wireless

MicrocontrollerPC

Antenna

Wireless

Microcontroller

PC

Antenna


Antenna

Flash Memory


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Technologies


Hardware : Designing Microcontroller and interfacing ckt

Responsibilities











release date.


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WIRELESS SENSORNETWORKS FOR SMOKE AND FIRE

PROTECTION

Authors

25, January, 2010


HYDERABAD - 500034




136


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Main Project Title

Wireless sensor networks for smoke and fire protection

Project Description

Wireless sensor networks for smoke and fire protection will help us toprevent disasters. This can be installed any where in our house, office, vehicle orindustries.

Smoke and Fire protection system contains sensor units and Masterunit. In sensor unit micro controller always polls the sensor to get data of smoke

and fire level. If the smoke level in the surrounding reaches certain level then itwill send alert message to the centralized controller. Master controller will alertsall by giving signal to the buzzer and displays the place.

System is developed with wireless controllers which establisheswireless network. Wireless controllers use zigbee technology for wireless com-munication. ZigBee is a specification for high level communication protocols us-ing small, low-power digital radios based on the IEEE 802.15.4 standard for wire-less personal area networks (WPANs).

The scope of work includes study of wireless sensor network, net-

work planning, design and development of hardware and embedded firmware forfault location and notification to the Master.

Block Diagram:-

DISPLAY UNIT:-


136


Antenna

Lcd

Buzzer


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SENSOR UNIT:

Technologies


Hardware : Designing Microcontroller and sensor ckt

Responsibilities











release date.


136

Wireless

Microcontroller

Smoke and

Fire Sensor

Antenna


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SAHA POWER MANAGEMENT UNITMICROCONTROLLER BASED ALARM MONITORING UNIT

Sub-Project Initiation Module No. 43

Authors

25, January, 2010


HYDERABAD - 500034




136


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Main Project Title

Power management unit

Sub-Project Title

Micro-controller based alarm monitoring unit

Project Description

Power Management Unit (PMU) as name suggests provides complete AC

power management for telecom cell sites including voltage stabilization, over

voltage, under voltage protection, phase selection and surge protection. In the

telecommunication cell sites, there is a need to monitor the site data like mains

supply, Diesel generator data, site alarms and environment conditions.

Micro-controller based alarm monitoring unit will be interfaced with

temperature sensor, fire/smoke sensor, door open/close sensor which are kept

inside the telecommunication shelter and it also interfaces with diesel generation

to collect the faulty conditions. It also monitors some of the parameters for the

thresholds which are like mains supply voltage and current, frequency of

operation etc.,

The alarms which are generated while monitoring the conditions will betransmitted to the Man machine interface for displaying on the Front Panel of the

Power Management unit and further transfer the data to remote server through

GSM/GPRS network.

Power Management unit will be working in an automated mode by

monitoring these alarms. This is useful in taking the decision to switch over to

corresponding power supply and to safeguard the unit from malfunction. It helps

in taking the necessary actions to be taken by site engineer during its

maintenance.


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`

TechnologiesSoftware : Embedded CHardware : Micro controller


136

NMUInterface with

Sensors

GCU

Serial data for

DG conditions

Front PanelLED Display

GSM/

ADC

Rx

Tx


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Responsibilities











release date.


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SAHA POWER MANAGEMENT UNITAUTO MAIN FAILURE (AMF)

Sub-Project Initiation Module No. 22

Authors

25, January, 2010


HYDERABAD - 500034




136


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Main Project Title

Power management unit

Sub-Project Title

Auto Main Failure

Project Description

Power Management Unit , which is commonly known as PMU, is

the most modern electrical interface and control unit used for GSM / Telecom

installation. The system is intended to be used for replacement of Servo

Stabilizer, AMF(Auto Main Failure) Panel, Isolation Transformer, AC Distribution

Panel, Lightning and Surge Arresters, Alarm Panel, Generator Battery Charger,

etc. at telecommunication site. The advance feature of the unit provides input

voltage correction in s to enable the user to utilize the mains even under

extreme low voltage conditions which servo technology was not able to offer due

to slow response. The input voltage is isolated completely. The unit has very fast

true RMS measurement with High and Low voltages disconnect facility.

The power management unit may include a mains input panel , a lightningarrestor, a phase selector, a line conditioner unit (LCU) , an auto mains failure

(AMF) unit , a power distribution board (PDB), a surge arrester, a control unit,

diesel generator (DG), a network monito

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