Maritime search and rescue wireless sensor network and energy dynamic allocation method thereof

A technology of energy dynamic allocation and wireless sensor network, which is applied in the field of wireless search and rescue to achieve the effect of reducing energy consumption

Inactive Publication Date: 2013-04-24
SHANGHAI MARITIME UNIVERSITY
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0007] The present invention provides a wireless sensor network for maritime search and rescue and its energy dynamic distribution method, which solves the problem that node energy distribution in...

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  • Maritime search and rescue wireless sensor network and energy dynamic allocation method thereof
  • Maritime search and rescue wireless sensor network and energy dynamic allocation method thereof
  • Maritime search and rescue wireless sensor network and energy dynamic allocation method thereof

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Embodiment Construction

[0042] Specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0043] Such as figure 1 As shown, the present invention discloses an embodiment of a wireless sensor network for maritime search and rescue. The sensor network includes: a ship terminal 1 , a sink node 2 , and a sensor node 3 .

[0044] The ship terminal 1 is arranged on the ship, establishes a communication connection with the Internet 5 through the external satellite 4, and communicates with the sea rescue center through the Internet.

[0045] The sink node 2 is set on the survival craft, and the energy of the sink node 2 is not limited. The convergence node 2 is wirelessly connected to the ship terminal 1, and the convergence node 2 searches for common sensor nodes 3 in the network as the survival craft moves autonomously.

[0046] The sensor node 3 is set on items such as life jackets. The sensor node 3 has limited energy and dynamically ...

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Abstract

The invention discloses an energy dynamic allocation method for a maritime search and rescue wireless sensor network. The method includes the following steps: (1) encoding sensor nodes according to the distance between each sensor node and each aggregation node and initializing transmitting power of the sensor nodes, (2) using the transmitting power of the initialized sensor nodes as a set of to-be-selected solutions of follow-up optimized operation, (3) building up fitness function which is suitable for prolonging lifetime of the wireless sensor network, and (4) carrying out optimization selection operation on energy allocation of each sensor node according to a fitness function value of each solution of the energy dynamic allocation method, and basing the operation on an elite immigrant genetic method for optimizing the energy allocation of the sensor nodes. The method can utilize the high-quality solutions of an original environment to be convergent to the present optimization solutions, fully considers dynamism of environment and the nodes, effectively utilizes adaptability of the elite immigrant genetic algorithm to the dynamic environment, can be suitable for a network with high dynamism, and reduces unnecessary energy consumption.

Description

technical field [0001] The invention relates to a wireless search and rescue technology in the field of maritime safety and wireless sensor network technology, in particular to a wireless sensor network for maritime search and rescue and a method for dynamically distributing energy thereof. Background technique [0002] The existing maritime search and rescue technology mainly relies on the search work of the search and rescue party, and the search target itself can hardly provide useful information related to the search work for the search work, so it is relatively passive. With the advent of the Internet of Things era, Wireless Sensor Networks (WSN) technology has gradually matured. Its real-time monitoring of targets in the monitoring area and multi-hop wireless communication methods can collect information on search and rescue targets in maritime search and rescue. Sent to the search and rescue department to provide useful information for the rapid search of the target. ...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04W40/10H04W84/18
CPCY02B60/50Y02D30/70
Inventor 吴华锋张倩楠杨磊
Owner SHANGHAI MARITIME UNIVERSITY
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