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Wireless charging based sensor network anchor point selection method

A sensor network and wireless charging technology, applied in the network field, can solve problems such as the weakening of fairness in data collection, achieve the effect of guaranteeing the number of visits, ensuring long-lasting and stable operation, and improving operating efficiency

Active Publication Date: 2016-12-21
SOUTHWEST UNIV
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  • Claims
  • Application Information

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Problems solved by technology

Therefore, in single-hop data collection, the data collection fairness of all nodes is greatly weakened

Method used

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  • Wireless charging based sensor network anchor point selection method

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Embodiment Construction

[0020] figure 1 It is a flow chart of the present invention, as shown in the figure, a wireless charging-based sensor network anchor selection method provided by the present invention includes:

[0021] S1. The mobile collection device collects the anchor point data one by one according to the order of the previous anchor points and the remaining power of the sensor battery of the neighbor node that sets the anchor point. Among them, the mobile collection device can use a mobile robot or a charging car. Robots or rechargeable cars are at least equipped with receivers, transmitters, and high-capacity batteries with sufficient charging energy, which belong to the existing technology, and their working principles and structures will not be described here;

[0022] S2. Sorting the remaining battery power values ​​of each sensor battery and forming a list S(i), where i is the number of sensor nodes;

[0023] S3. Calculate the access path length of the sensor node corresponding to ...

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Abstract

The invention provides a wireless charging based sensor network anchor point selection method, which comprises the steps of S1, acquiring anchor point data one by one according to a preceding anchor point sequence and sensor storage battery residual electricity quantity of neighbor nodes of a set anchor point by mobile acquisition equipment; S2, sorting the sensor storage battery residual electricity quantity values so as to form a list S(i), wherein i represents the number of sensor nodes; S3, calculating the access path length of the mobile acquisition equipment for accessing to the sensor node corresponding to each element in the list S(i), judging a size relation between the access path length and set path threshold length Ltsp, selecting a sensor whose access path length is equal to the set path threshold length Ltsp, and setting the selected sensor to be an anchor point to which the mobile acquisition equipment accesses the next time. The method provided by the invention can effectively improve the fairness of data collection and reduce data delay, the maximum node access number of a sensor network is guaranteed, and sustained stable running of the sensor network is ensured. In addition, charging for sensor nodes which do not required to be charged can be avoided, and he running efficiency of wireless charging is improved.

Description

technical field [0001] The invention relates to a network method, in particular to a method for selecting an anchor point of a sensor network based on wireless charging. Background technique [0002] Currently, sensor networks are mainly powered by batteries. Due to the limited storage energy of sensing batteries, wireless sensor networks often have a limited lifetime. However, in practical applications, such as earthquakes, soil testing, glacier movement monitoring and other harsh environments, no one sticks to it for a long time. Although there is a lot of research on extending the lifetime of wireless sensor networks, the network lifetime is still a performance bottleneck of wireless sensor networks and a key factor hindering their large-scale deployment. [0003] On the one hand, it shows that harvesting energy from nature, such as solar energy, wind energy, temperature, and vibration, can effectively improve network performance and increase network lifecycle. However...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/02H04W40/10H04W84/18
CPCG06Q10/047H04W24/00H04W24/02H04W40/10H04W84/18Y02D30/70
Inventor 郭松涛刘德芳王飞石亚伟刘东卓陈孟钢
Owner SOUTHWEST UNIV
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