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Routing Method for Differentiated Services of Wireless Multimedia Sensor Network in Coal Mine

A multimedia sensor and network technology, applied in wireless communication, data exchange network, transmission system, etc., can solve the problems of conical distribution of network traffic, network delay, packet loss rate and high energy consumption

Active Publication Date: 2020-06-23
BEIJING JIAOTONG UNIV
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Problems solved by technology

Therefore, nodes closer to the sink node need to process and forward more multimedia services, resulting in a cone-shaped distribution of network traffic.
Considering the limited computing power and energy of WMSNs nodes in coal mines, the conical distribution of network traffic will inevitably lead to high network delay, packet loss rate and energy consumption of WMSNs in banded structures, making it difficult to provide multimedia services. QoS Guarantee

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  • Routing Method for Differentiated Services of Wireless Multimedia Sensor Network in Coal Mine
  • Routing Method for Differentiated Services of Wireless Multimedia Sensor Network in Coal Mine
  • Routing Method for Differentiated Services of Wireless Multimedia Sensor Network in Coal Mine

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Embodiment 2

[0150] Experiment and Analysis

[0151] simulation model

[0152] In order to test the performance of the proposed DiffServ routing protocol for underground WMSNs in coal mines, it is assumed that in a 1000m×5m strip-structured roadway, figure 2 The forwarding layer shown in the figure randomly deploys 48 forwarding nodes evenly, a cluster head node that sends three kinds of multimedia services is located at (20,2), and a sink node that receives three kinds of multimedia services is located at (980,3). The weights of sensor data service, voice service and video service on the normalized sub-QoS evaluation function of transmission delay, transmission packet loss rate and transmission energy consumption in formula (10) They are shown in Table 2 respectively.

[0153] Table 2 QoS evaluation weights of different types of services

[0154]

[0155] In order to compare the QoS guarantees of three disjoint paths for sensing data services, voice services, and video services in...

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Abstract

The invention provides a routing method for differentiating services of a wireless multimedia sensor network under a coal mine. The method includes: the cluster head node establishes the sensing data service, voice data service, and voice data service respectively according to the WMSNs transmission delay, transmission packet loss rate and transmission energy consumption of the paths corresponding to the sensing data service, voice data service, and video data service. The total QoS evaluation function of service and video data service; according to the priority of sensor data service, voice data service and video data service, based on the constraint condition that the value of the total QoS evaluation function is the largest, the differential evolution algorithm is used to calculate the sensor data service , voice data service, and video data service respectively corresponding to the best paths. The present invention realizes three node disjoint paths for three kinds of multimedia services, realizes differentiated services of three kinds of multimedia services in coal mines, and guarantees that the three kinds of multimedia services are different in transmission delay, transmission packet loss rate and transmission energy consumption Service quality requirements.

Description

technical field [0001] The invention relates to the technical field of wireless multimedia sensor networks, in particular to a routing method for differentiating services in underground wireless multimedia sensor networks in coal mines. Background technique [0002] Coal mine safety production has an urgent need for environmental monitoring, wireless voice communication and wireless video surveillance. Wireless Multimedia Sensor Networks (Wireless MultimediaSensor Networks, WMSNs) is a new type of sensor network that introduces audio, image, video and other multimedia applications on the basis of traditional wireless sensor networks. WMSNs have fast and convenient wireless access, flexible topology and rich multimedia perception capabilities. For this reason, it is proposed to build WMSNs in coal mines to further improve the capabilities of environmental monitoring, wireless voice communication and wireless video surveillance in coal mines, and to ensure safe production in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/725H04L12/733H04L12/727H04L12/721H04W40/08H04L45/121H04L45/122
CPCH04L45/121H04L45/122H04L45/123H04L45/124H04L45/302H04L45/3065H04L45/70H04W40/08
Inventor 尤凯明杨维
Owner BEIJING JIAOTONG UNIV
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