The Implementation Of High Efficiency Wireless Sensor In Acoustic Object Tracking

Abstract

Abstract-Energy control in Wireless SensorNetwork is one of the most crucial technologies. Based on the acoustic object localization background, we designed a new structure of the sensor node to realize the energy efficiency in the power supply and artificial sleeping scheduling in this paper. The power control model is independent with data processing and control model and can separately realize the power supply for different part of the node. The node can transfer status according the different circumstance to minimize the energy consumption. Furthermore, a new synchronous sleeping/wake schedule mechanism in the medium access control layer is proposed. Sensor nodes can use the forwarding and listening status to schedule their better energy status on demanded. The experiment has been evaluated and analyzed in a test-bed. The result confirms the structure and the proposed mechanism are energy efficiency and gain better trade-off between the accuracy and efficiency.Index terms: Wireless sensor network, scalable architecture, energy-equalize, power control.

Design and implementation of network security shooting range for Three Gorges shore power

“…In the face of a significant increase in the utilization rate of shore power facilities and increased network risks, Yichang Power Supply Company of the State Grid will do a good job in the network security protection of power grid industrial control scenarios, taking the shore power test area of the Three Gorges Dam area as a pilot(as shown in Figure 1), and choosing shore power scenarios as the basis [6] . Combined with the intelligent Internet of Things system, the targeted establishment of shore power network security protection mode, the innovation of the "Three Gorges Shore Power Range" simulation platform, the operation of equipment to carry out simulated penetration attack, to verify the safety of equipment, ensure the safety and reliability of online facilities, strengthen the management of shore power equipment, fill the gaps in the industry, build a strong shore power system network security shield [7] . Shore power system includes two networks, one is a power supply network, the other is an information network, only these two networks are safe and reliable, in order to better provide users with shore power services, in the daily operation and maintenance work, electric equipment operation and communication equipment operation and maintenance of both indispensable, if the communication equipment is subjected to network attacks, it will seriously cause the damage of ships, shore power equipment and online monitoring failure [8] .…”