Several types of research have been made on short-range and low-level wireless networks energy consumption since their appearances until today. To examine the specificities of each, we have done a comparative study to highlight the strengths and weaknesses based on energy consumption, scope and reliability of mesh architecture to conclude open international standard, and more adapted to industrial needs. This paper addresses the low power mechanisms provided by 6LoWPAN and the ZigBee Protocol with their two version (ZigBee-Pro and ZigBee IP), providing comparative assessments based on the results obtained by available in specialized literature and different researchers. The results show that ZigBee IP can be the most appropriate protocol in case we want to connect multiple nodes with fast communication and optimized power consumption
Climate has changed throughout the 4.5 million year history of the globe. At the same time, natural and human activities are affected directly by the global change of Earth system attributes, such as increase in temperature. Land surface temperature (LST) is an important but highly variable climate parameter. Its spatial distribution and the characteristic of its diurnal change over wide areas can only be determined with remote-sensing methods. The power of wireless sensor network (WSN) technology has provided the capability of developing large-scale systems for remote-sensing algorithm and sensor validation.This article presents a new method (sensitivity ∼0.1 • C) for in situ LST measurements. The results of wide in situ LST campaigns carried out during 2009 in four distant and different sites located in northern Morocco are shown: (1) Kasr-Seghir, (2) Targha, (3) Tangier, and (4) Chefchaouen. For this purpose, we used two calibrated radiometers with thermal infrared bands, OSM101 and TESTO845. Finally, during these campaigns, a total of 28,531 measurements were made with the proposed wireless-LST (Wi-LST) system. The preliminary results show a wide variability of the measurements, which is in total accordance with the heterogeneity of the targets' nature. This is encouraging for we are interested in building up a reliable and consistent standard in situ LST measurements database for LST algorithm validations.
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