Abstract
Wireless sensor network based applications have gained a significant importance in recent years. However, it creates problems when sending the detected data over distant stations even though establishment of sensor networks by means of ZigBee communication modules as the communication range of these modules are limited. For this reason, in this study, design of a gateway node which can be used in the sensor network applications was developed. The gateway node developed consists of a CC2530 ZigBee Module, an MSP430G2553 ultra low power microcontroller and a SIM900 GSM/GPRS module. As a result of this node, the sudden changes can be sent as data packets (SMS), also, the data can easily be monitored on web based and mobile platforms. It is anticipated that the study will be useful for the researchers conducting sensor network applications. Key words: Wireless sensor networks, ZigBee, sensor node, gateway node.
Highlights
The wireless networks using sensors for monitoring physical or environmental conditions in diversified locations such as temperature, humidity, light, pressure, pollution, soil constituents, noise level, vibration and object movements in a cooperative way and containing devices working independently from each other are called “wireless sensor networks” (Akyildiz et al, 2002).As for the nodes that are used in wireless sensor networks and that have the capabilities of calculation, perceptual data collection and communication with the other connected sensors in the network are called sensor nodes (Chong and Kumar, 2003).Sensor nodes fundamentally consist of the main constituents of a microcontroller, a transceiver, an external memory, a power source and a sensor (Gupta et al, 2013)
Through the gateway node developed, the data detected from the sensor nodes in the medium can be sent to the distant stations with the help of GSM/GPRS technologies
In the existing sensor nodes (TelosB, Mica2, MicaZ, etc.), the gateway node is formed by means of connecting it to a personal computer in the laboratory or the classroom and the applications are carried out this way
Summary
The wireless networks using sensors for monitoring physical or environmental conditions in diversified locations such as temperature, humidity, light, pressure, pollution, soil constituents, noise level, vibration and object movements in a cooperative way and containing devices working independently from each other are called “wireless sensor networks” (Akyildiz et al, 2002). If you are in the home, this place is far from your farm, you cannot monitor the values These nodes cannot be used in many applications which require you to send your data to distant stations. Through the gateway node developed, the data detected from the sensor nodes in the medium can be sent to the distant stations with the help of GSM/GPRS technologies. Wireless Sensor Networks consist of small-sized sensor nodes installed on the environment These nodes carry, by collaborating in a physical ground, what they learn from the physical world to the virtual world platform (Mayank, 2005). As for the sensor nodes, they are general units with limited energy and calculation capabilities that communicate through radio technology These units are automatically placed and installed with a purpose to detect and monitor some conditions and phenomena in the detecting zone.
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