A Geographical Appraisal of Health Care Facilities in Lakshadweep Islands

Any electronics system is the comprises of basically three units: first is an input device to give the command to the system, second is the processor to perform the specific operation according to the command received and last is output device to get the result in the different form of information like graphical form, mechanical work, numerical value etc. Generally all the available input devices uses the different type of switches, these all devices have different no. of demerits such as large power consumption, bulkier in size, occupy large space etc. in order to eliminate all these limitation we have another advanced technology that is touch screen. In the field of touch screen technology we have different type of resistive touch screen technology. But they also have some disadvantage so our main focus on to design new capacitive touch screen devices or to design new algorithms to detect the touch event on the specific location of touch screen device. In this new algorithms methods we uses the concept of capacitance of the device when there is touch will be occurred, this increases capacitance is the combination of parasitic capacitance & finger capacitance of the touching body. This relative increasing capacitance increases the Γ (time constant) which decreases the frequency of signal generated at the time of touching the devices. Now this increases capacitance of the device by touch event can be identified by the decreases frequency or the increases time for which touch screen produce the voltage signal. And then assign the specific operation to each touch portion of the screen.