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In order to solve the problem that the coverage area of ZigBee tree network is restricted by the depth, so that new nodes can not join the network and become a orphan, this paper introduces a project of expanding network coverage area. In this project, through the manual of the button, we can choose a qualified end device to convert to the router configuration, then the device as a router receives...
To solve the problem that the cluster heads consume a lot of energy in the cluster tree network, a new method which can balance energy consumption and improve the energy utilization ratio is proposed in this paper. This method employs the existed network address resource to select the reserved cluster head. By this method, the convert of network structure which caused by changing cluster head is also...
Wireless sensor network is characterized by low power, low cost and low complexity. With these features, wireless sensor network has great potential to develop indoor positioning system. At present, Circular line of position based on Received Signal Strength Indication (RSSI) has minimum additional cost and most simple algorithm among the existing location strategies. However, radio signal propagation...
To access the batteries information in the process of charge and discharge in time, the article designed a monitoring system for the condition of storage batteries based on ZigBee. This approach used the chip of CC2430, which was integrated of AD converter, 8-bit strengthened MCU and wireless RF unit. The chip of CC2430 and the external circuits were made up the node of the star network. The temperature,...
As an important part of Smart Grid, smart metering attracts more and more attention all over the world. It is the way for energy consumer to sense the benefit of smart grid directly. Facing the great demand of smart metering, governments and company are busy with establishing policies and standards for smart metering deployment. This paper enumerates the standards and policies set up by governments...
A new tire monitoring scheme is proposed in light of the defects of the existing tire pressure monitoring system. Parameters of various automobile tires can be monitored dynamically and transmitted to the driver meter through the network which consisted with ZigBee network and CAN bus. Then, auto tire failures early warning function is realized. Simulation and piracies proved that reliability and...
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