Energy balancing by combinatorial optimization for wireless sensor networks
WSEAS TRANSACTIONS on COMMUNICATIONS
QoS integration of the internet and wireless sensor networks
WSEAS Transactions on Computers
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G2 Microsystems of Campbell, California, USA, released in 2007 the first ever ultra-low power Wi-Fi System on a Chip (SoC) named G2C501. This SoC includes a 32-bit CPU, crypto accelerator, real-time clock and a versatile sensor interface that can serve as a standalone host subsystem. The G2C501 goes beyond today's basic radio frequency identification (RFID) technology to offer intelligent tracking and sensor capabilities that leverage IEEE 802.11 (Wi-Fi) networks. Due to its support for multiple location technologies, small form factor and ultra-low power consumption, the G2C502 SoC can be integrated into Wi-Fi sensor tags that lower cost of ownership and meet the needs of a variety of industries including consumer electronics, pharmaceuticals, chemical manufacturing, cold chain and more. A battery powered, small size ultra low-power Wi-Fi wireless measurement node name IP Sensor has been built using the G2C501 SoC. Sensors for measurement of temperature, humidity, light, and vibration or motion are currently mounted on the IP Sensor board. The node is able to read a sensor and send data to the network by using an IP-based application protocol such as UDP. This paper describes the new IP Sensor device and gives a programming methodology using LabVIEW.