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The fault rate of on-load tap-changer (OLTC) has always been in a high level, and that is exactly the primary reason of transformer faults. As a result, an on-line detection method of OLTC was proposed. The embedded platform and wireless sensor network (WSN) technology was introduced into the on-line detection system. WSN was used to obtain OLTC status information. The embedded platform software,...
Adopting the borrowed address algorithm can decrease the orphan nodes in ZigBee networks that use distributed address assignment mechanism (DAAM). The existing borrowed address algorithms can increase the success rate of address assignment, but they have defects such as greater cost of overhead and time in founding network caused by breaking topology. To solve such problems, we propose an more efficient...
With the development of wireless sensor networks, energy supplying problem become critical. One solution method is energy scavenging technology which harvest energy existed in environment, such as solar, vibration, air flow, temperature difference, ambient electromagnetic fields and etc. In substations, the method harvesting energy from the electric field to power sensor nodes is adopted because it's...
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