Task migration method and system of underwater ad hoc network based on edge gateway

A self-organizing network and edge gateway technology, which is applied in the direction of services, transmission systems, and network topologies based on specific environments, can solve problems such as limited bandwidth and computing resources, network system failure, and service capability decline, and achieve convenient remote access, The effect of reducing bandwidth load, energy consumption and delay minimization

Inactive Publication Date: 2020-08-18
OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In addition, the inventors found that the marine environment is complex. When the underwater self-organizing network is faced with a large amount of data to be transmitted, due to the limited bandwidth and computing resources of the nodes, the aggregation of a large number of tasks will cause access congestion, and the overload of the data link will form a routing hotspot. If the load of an edge gateway and node exceeds the critical value, its service capability will drop sharply, and even cause the network system to be paralyzed.

Method used

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  • Task migration method and system of underwater ad hoc network based on edge gateway
  • Task migration method and system of underwater ad hoc network based on edge gateway
  • Task migration method and system of underwater ad hoc network based on edge gateway

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Embodiment 1

[0038] This embodiment provides a task migration method of an underwater self-organizing network based on an edge gateway. When a real-time task of a sensor node needs to be migrated, the task information to be migrated is sent to the edge gateway, and the edge gateway is responsible for managing the task. Migrate between different nodes. The allocation of migration tasks by the edge gateway must meet the following constraint requirements:

[0039] 1) Migrating V j task T j Bandwidth used must not exceed V i Shared transmission bandwidth provided Task to be migrated T j Calculations per unit time cannot exceed V i computing power

[0040]

[0041] 2) The execution time of task migration time-consuming and sensor node processing tasks shall not exceed the final deadline:

[0042]

[0043] in, means V i processing task execution time, means V i elapsed time of the migration task, means V i Task T defined when the migration calculation task is initiat...

Embodiment 2

[0073] like figure 1 As shown, this embodiment provides a task migration system based on an edge gateway-based underwater self-organizing network, including sensor nodes, edge gateways, and shore-based data centers. Structured data are sent to the nearest edge gateway. The edge gateway adopts the edge computing mechanism to preprocess, fuse and pre-store various heterogeneous data sent by sensor nodes, and upload the processed effective data to the shore-based data center in order to reduce data transmission delay and Reduce the transmission volume of observation data, ensure the real-time performance of data processing, reduce the bandwidth load of the network and the pressure on the core network of the shore-based data center. The shore-based data center is used to process, store and apply the effective data uploaded by the edge gateway.

[0074] The underwater self-organizing network of this embodiment adopts a network protocol based on RESTful structure, and users can re...

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Abstract

The invention discloses a task migration method and system of an underwater ad hoc network based on an edge gateway. The method comprises the steps of selecting the edge gateway used for task migration management; adding sensor node information to a resource manager of the edge gateway; arranging the sensor node information by the edge gateway to form priority ranking of the nodes in the resourcequeue; arranging the task information of the original sensor nodes in a descending order by the edge gateway according to task priorities and puts the task information into a task queue of a task manager, and selecting an optimal task cooperation node; and migrating the task to the task cooperation node through the edge gateway for task calculation, and sending a calculation result to the originalsensor node. According to the method, the underwater self-organizing network node sends the collected seabed heterogeneous data to the nearest edge gateway, and the edge gateway migrates the task ofthe resource-limited node to the node with rich resources for cooperative completion, thereby balancing the network load, reducing the node energy consumption, and improving the marine data observation efficiency.

Description

technical field [0001] The invention relates to the technical field of underwater self-organizing networks, in particular to a method and system for task migration of underwater self-organizing networks based on edge gateways. Background technique [0002] The statements in this section merely mention the background technology related to the present invention and do not necessarily constitute the prior art. [0003] Underwater self-organizing network is a research hotspot in the construction of smart ocean engineering. It plays an important role in applications such as marine environmental data observation, marine disaster warning, and maritime traffic navigation assistance. The sensor nodes of the underwater self-organizing network are mounted on the anchored submersible buoy or the submarine observation junction box on the seabed, and form a self-organizing multi-hop relay network through underwater acoustic communication or optical cable communication to transmit sensing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/38H04W28/06H04W84/18H04L29/08G06F9/50G08C17/02G08C23/06
CPCG06F9/5088G08C17/02G08C23/06H04L67/02H04L67/10H04L67/1004H04L67/12H04W28/06H04W84/18H04W4/38Y02D10/00Y02D30/70
Inventor 胡一帆郑轶刘海林陈杰吕斌耿和清袁健张照文李辉曹琳
Owner OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
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