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Data transmission collaboration processing method for multimedia sensor network

A multimedia sensor and network data transmission technology, applied in digital transmission system, transmission system, network topology, etc., can solve the problems of transmission quality and delay impact, increase of bit error rate, real-time impact of data transmission, etc., to avoid transmission The effect of increasing the bit error rate and unit energy consumption, reducing overhead and load, and improving data transmission capacity

Inactive Publication Date: 2008-11-12
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0007] In the course of the research, the inventor found that the above two data transmission cooperative processing schemes of wireless sensor networks have certain deficiencies: the former is that the cluster leader node inquires whether the stations in the cluster have transmission requests according to the order of node numbers, and this scheme can effectively avoid the wireless channel. data conflicts, but the way of sequential query will have a considerable impact on the real-time performance of data transmission; the latter is to increase the relay node between the cluster head node and the video node to be responsible for image compression coding, although reducing the number of camera nodes While image transmission consumes energy, it can alleviate the energy consumption pressure of cluster head node image processing, but the additional one-hop forwarding often has a certain impact on transmission quality and delay, and the increase in bit error rate and long delay are unavoidable

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  • Data transmission collaboration processing method for multimedia sensor network
  • Data transmission collaboration processing method for multimedia sensor network
  • Data transmission collaboration processing method for multimedia sensor network

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Embodiment Construction

[0030] The invention adopts a design method combining embedded software and system software, and describes the data processing method between nodes in the entire wireless multimedia sensor network based on the support of related hardware equipment. It should be clear that the following content is only used to describe the present invention and not to limit the present invention.

[0031] The cooperative processing method for data transmission between various sensor nodes based on different resource subnets in the wireless multimedia sensor network has the following steps:

[0032] Step 1) Node function division and category determination. The sensing nodes involved in the present invention are specifically as follows:

[0033] Ordinary sensor nodes: Since the temperature, luminosity and humidity sensors in traditional wireless sensor networks are far smaller in volume and energy consumption than multimedia sensors in wireless multimedia sensor networks, the above three types ...

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Abstract

A multimedia sensor network data transmission cooperative processing method mainly relates to a method for processing the superfluous environmental data among sensor nodes and occupying network resources reasonably. The data processing method is based on the isomerism of wireless sensor network nodes, requires that the functions of nodes can be dispersed to a maximum extent. The nodes can be divided into the following varieties: an ordinary sensing node 1, a video sensing node 2, an audio sensing node 3, a multimedia cluster head node 4, a base station node 5 and an access node 6. The invention can not only save energy, but also can establish a function dispersing cooperative processing mechanism in a wireless network, which leads the heterogeneous nodes in the whole network not to be interfered with each other, thereby being easy to maintain; besides, the homogeneous nodes can cooperate with each other, thereby being capable of occupying the network resource more reasonably and satisfying the demand of actual application more effectively.

Description

technical field [0001] The invention relates to a processing method for data transmission cooperation between sensor nodes in a wireless sensor network, and belongs to the intersecting field of embedded development and computer network technology. Background technique [0002] Wireless Sensor Network (WSN) is the product of the development and integration of information technology such as microelectronics technology, Ad Hoc wireless network, and distributed computing. A multi-hop self-organizing network system formed by wireless communication between wireless sensor network nodes, its purpose is to cooperatively perceive, collect and process the information of sensing objects in the network coverage area. It has a very broad application prospect in the fields of military, medical, agricultural, mining and environmental monitoring. [0003] Distributed multimedia communication system is a multimedia communication system that can complete multimedia communication services and...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/28H04L29/08H04L1/00H04W84/18
CPCY02B60/50Y02D30/70
Inventor 王汝传魏烨嘉陈庭德熊焰黄海平孙力娟沙超陈志叶宁李文锋王玉斐凡高娟
Owner NANJING UNIV OF POSTS & TELECOMM
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