Routing method and device for wireless charging sensor network based on dynamic programming principle

A sensor network, wireless charging technology, applied in network topology, wireless communication, electrical components, etc., can solve problems such as implosion, network scale changes, information duplication, etc., to improve energy utilization and efficiency, reduce time and labor cost, the effect of improving computational efficiency

Active Publication Date: 2021-06-25
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(2) Routing cost: energy is the most precious resource of wireless charging sensor networks, and the limited resources require that the routing method of wireless charging sensors should reduce the routing cost as much as possible and be more efficient
(4) Scalability: sensor nodes may not work due to their own energy exhaustion or the surrounding environment, or changes in the network scale due to changes in the network range
[0005] In the existing routing method, the SPIN algorithm is specifically that when receiving information, the node sends an ADV message in advance before sending the information to inform other nodes to send information, and if the other nodes agree to receive the information, a REQ message is returned. However, the SPIN algorithm The goal is more to send data to the base station regardless of its path, thus ignoring many choices that affect the decision
The Flooding flooding algorithm is specifically that the node receiving the data forwards it to all nodes in the sending node like a broadcast, regardless of whether the node has received the information or not. Although the Flooding flooding algorithm can be applied to the principle of dynamic programming, it is infinite Differential transmission can easily cause duplication and implosion of information, reducing the performance of the sensor network

Method used

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  • Routing method and device for wireless charging sensor network based on dynamic programming principle
  • Routing method and device for wireless charging sensor network based on dynamic programming principle
  • Routing method and device for wireless charging sensor network based on dynamic programming principle

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Embodiment 1

[0117] This embodiment discloses a wireless charging sensor network routing method based on the principle of dynamic programming, wherein the wireless charging sensor network is equipped with energy sending and receiving devices that can charge sensor nodes on the traditional wireless sensor network infrastructure. device. Such as figure 1 As shown, the wireless charging sensor network in this embodiment is composed of a base station, a control host, sensor nodes, and a drone equipped with a wireless charging device. Specifically, the transmitter of the charging device that can realize magnetic coupling resonance is mounted on the drone. The receiving end is installed on the sensor node. When the UAV flies over the sensor node, it hovers, and when the altitude drops to a certain distance, the power can be transmitted from the transmitter to the receiver. Wherein, the transmitting end is composed of two coils, and the receiving end is also composed of two coils. The transmit...

Embodiment 2

[0224] This embodiment discloses a computing device, which includes a processor and a memory for storing executable programs of the processor. When the processor executes the program stored in the memory, it realizes the wireless computing device based on the principle of dynamic programming described in the first embodiment. The charging sensor network routing method is as follows:

[0225] Divide the wireless charging sensor network into stages, and obtain the state variables of the corresponding stages according to the nodes in each stage;

[0226] Assign stage attributes and receiving attributes to the state variables in each stage;

[0227] Record the node information of each node that communicates with each other. The node information includes the state variable of the stage corresponding to the node, the stage attribute, the state variable of the next stage affected by the state variable of the current stage, and the coordinate information of the node. Routing models a...

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Abstract

The invention discloses a wireless charging sensor network routing method and equipment based on the principle of dynamic programming. The algorithm first constructs a routing model suitable for the principle of dynamic programming, divides the wireless charging sensor network into stages, and assigns the state variables of the obtained stages to stages. attributes and receiving attributes; record the node information of each node in the communication, so as to obtain a routing model suitable for the principle of dynamic programming; filter out reachable routes from the routing model; convert the wireless charging sensor network into a weighted connected graph, according to the The weighted connectivity graph establishes the minimum weight function from the source node to the node base station; transforms the weighted connectivity graph into a weight matrix, and uses the dynamic programming principle to obtain the minimum weight reachable route and solve the minimum weight function according to the weight matrix. The invention realizes the establishment of a reasonable and efficient charging strategy for the wireless charging sensor network, improves energy utilization and efficiency, and reduces time and labor costs.

Description

technical field [0001] The invention relates to the technical field of wireless charging sensor networks, in particular to a routing method and equipment for wireless charging sensor networks based on dynamic programming principles. Background technique [0002] Wireless charging sensor networks are usually deployed in inaccessible environments such as mountains and deep forests, and UAVs are usually used as mobile charging sources. The wireless charging sensor network routing method is used to find a communication path from the source node S (usually a sensor node) to the base station Sink (that is, the node base station). The source node transmits information to the base station through the continuous forwarding of other sensor nodes. [0003] For wireless rechargeable sensor networks, the following aspects need to be considered: (1) Correctness: The source node should be able to correctly reach the node base station along the nodes in the routing table according to the ro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/22H04W84/18
CPCH04W40/22H04W84/18Y02D30/70
Inventor 刘贵云郭丹利马鸽蒋文俊彭百豪张杰钊唐冬
Owner GUANGZHOU UNIVERSITY
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