طراحی و پیاده‌سازی یک سیستم پایش از راه دور گلخانه مبتنی بر وب و با استفاده از پروتکل Zigbee و شبکه ارتباطی GSM

In modern and big greenhouses, it is necessary to measure several climate parameters to automate and control the greenhouse properly. monitoring and transmitting by cable may lead to an expensive and stiff measurement system. since, wireless sensor network (wsn) is a distributed system that consists of small-size wireless sensor nodes equipped with radio and one or several sensors; it is a low cost option to build the required monitoring system. in this paper, we introduce and implement an intelligent monitoring system based on wsn by using xbee modules. the xbee series 2 hardware uses a microchip from ember networks that enables several different flavors of standards-based zigbee mesh networking. all gathered information by sensors, are sent to a remote center in form of gprs packets through a gsm network and viewed by monitoring software. the proposed system has low power consumption, low cost and simple driver circuits. furthermore, it can support various types of digital and analog sensors