Gsm based substation monitoring and control system

Substation is a place where electrical power is monitored and controlled. Most of the substations are located in remote place. Because the equipments in the substations are dangerus. But this subatations has to be monitored periodicely to make sure that power quality is much reliable.

Working of this project:
This project provide a solution to monitor the parameters of the substations and a easy way to control the switch gears in it. This switch gear control is provided with the required interlock, witch is importent while opening or closing the switchgears. All this process is done using our hand held mobile phones via SMS service.

Safety and security:
Talking about safety, this project provide safety to the equipments by the required interlocks provided to it.
Security is provided to the system using 6 digit password that is manditorely provided along with the SMS. This password uses 128 bit encription technology(as provided in netbanking accounts) witch increase the security of the system.

Technical details:
Atmega 8 microcontroller is used as brain of the system to control switchgears and monitoring meters.
Merckley key encription technology is used for 128 bit encription.
Electromagnetic relay is used as switchgears (for prototype model).
CT ratio of 5:1 amps is used (for prototype model).
PT ratio of 300:5 volts is used (for prototype model).

Vehicle Accident identification system with auto SMS

Vehicle Accident identification system.

It is difficult to predict an occurrence of road accidents. if occurred, it is manditory to save the person depending on engury. this project will send a SMS to nearest 108 ambulance if an accident occur. this SMS will be sent within a time of 10 seconds of the accident time. but if the accident is not severe, the person in the vehicle can stop sending SMS by pressing a switch in it to make sure that unwanted intimation can be avoided.

Technical details:
This project is made using atmega128 Microcontroller(brain of the system),
SIM300 GSM modem is used to send SMS.
GMS module with patch antenna(small size) is usd to fetch the location where accident occurred.
Entire unit works using 12V DC power supply. witch can be easy to fix in vehicles.

Preparing embedded pcb

In my office me along with my friend prepared a 8051 controller board soldering some components. Its really interesting to work as a teem.. i like it so much.

Soldering is a great skill. Electronic engineers would know. its really fantastic to learn this. my friend is soldering a 8051 microcontroller IC-BASE in the PCB

Soldered IC base in legend view.

Full assembled PCB of required components and ready to get programmed.