15-02-2013, 11:32 AM
SIMULATION OF EARTHQUAKES AND TSUNAMI THROUGH GSM NETWORK
SIMULATION OF EARTHQUAKES.pptx (Size: 109.59 KB / Downloads: 33)
INTRODUCTION
The main purpose of this project is to warn before an earthquake strikes by using a GSM-based seismic alert system that could warn before an earthquake strikes.
By this we can minimize the rate of the damage occurs with the disasters to decrease the death percentage of the people.
This requires a warning before strong ground motion from the earthquake arrival. Such a warning system is possible because of energy wave released at the epicenter of the earth quake travels slower than light.
BUZZER
A buzzer or beeper is an audio signaling device.
This system does not try to find the epicenter or fault line caused by the earthquake.
It simply monitors the earth vibrations and generates alert signal when the level of earth vibrations crosses a threshold.
The alert signal is given by the buzzer which vibrates and activates the accelerometer.
ACCELEROMETER
When earthquakes occur the signal is generated, the accelerometer is activated and the signal is sent through the micro controller.
The signal has to be generated as quickly as possible. This may result in the possibility of generating false alarm.
Each sensing location should have 2 accelerometers placed 2 or 3 meters away from each other. The purpose of installing 2 accelerometers at each place is to detect and eliminate the local vibration noise, which can give false signals to the accelerometer.
GSM MODEM
Global System for Mobile Communications is the most popular standard for mobile phones in the world.
GSM is a cellular network, which means that mobile phones connect to it by searching for cells in the immediate vicinity.
The discrete magnitude levels will be detected and any magnitude above the preset threshold level will be transferred to the mobile receiver handset via SMS.
GSM modem is used for alerting public through phones and SMS based on area discrimination.
MEMS
Micro-Electro-Mechanical Systems (MEMS) is the integration of mechanical elements, sensors, actuators, and electronics on a common silicon substrate through micro fabrication technology.
MEMS is an enabling technology allowing the development of smart products, and expanding the space of possible designs and applications.
Unprecedented levels of functionality, reliability, and sophistication can be placed on a small silicon chip at a relatively low cost.