GSM Network Based Z-axis Position Control System

This paper presents the design of a GSM network based z-axis position controlling system for remote monitoring and control. Using this positioning system the height of an object can be controlled and monitored through SMS from any location where GSM network is available. The desired position of an object is sent to the GSM modem by the user through SMS. The embedded system in the positioning device has an algorithm which acquires the current position of the object, processes, transmits and stores it in the built-in Flash memory of microcontroller. Once the desired programmed trigger level of the signal is reached, the microcontroller downloads the current position of the object to the GSM modem. Then, GSM dials the pre-sorted mobile number/s and transmits the current position as a normal SMS to the user, thus making remote monitoring and control of positioning system is easier than the existing techniques.