23-03-2012, 10:48 AM
Design and development of a GSM data communication system
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Project Description
In this particular project the data logging (Data logging means continuously taking the readings of input parameters and feeding into the memory.) here is for two inputs such as temperature and light intensity. For these parameters we are using two different sensors such like temperature sensor for temperature and LDR for measuring light intensity.
To read these two readings with time by time or with some particular time periods we need a mediator between controller and sensors i.e. ADC. ADC will convert the analog data to digital data, where the analog data refers to the data which is given as input to the ADC from sensors and the digital data refers to the data taken from output of ADC. These data were repeatedly displayed on the LCD along exact reading according to the time periods.
TECHNOLOGY:
GSM:
GSM (Global System for Mobile communications) is the technology that underpins most of the world's mobile phone networks. The GSM platform is a hugely successful wireless technology and an unprecedented story of global achievement and cooperation. GSM has become the world's fastest growing communications technology of all time and the leading global mobile standard, spanning 218 countries. GSM is an open, digital cellular technology used for transmitting mobile voice and data services. GSM operates in the 900MHz and 1.8GHz bands GSM supports data transfer speeds of up to 9.6 kbps, allowing the transmission of basic data services such as SMS.