Differentiated service realization method in wireless multimedia sensor networks under coal mine

A multimedia sensor and wireless technology, applied in the direction of network topology, wireless communication, data exchange network, etc., can solve the problem of poor service quality guarantee of sensor data business

Active Publication Date: 2017-09-15
BEIJING JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The existing MAC protocol using the CSMA/CA mechanism usually gives priority to video services and voice services in the applic

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  • Differentiated service realization method in wireless multimedia sensor networks under coal mine
  • Differentiated service realization method in wireless multimedia sensor networks under coal mine
  • Differentiated service realization method in wireless multimedia sensor networks under coal mine

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Embodiment Construction

[0063] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0064] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof. It will be understoo...

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Abstract

The invention provides a differentiated service realization method in wireless multimedia sensor networks under a coal mine. The method mainly comprises the steps of setting environment monitoring nodes, voice nodes and video nodes in the wireless multimedia sensor networks under the coal mine; designing different competition windows for sensing data business, voice business and video business according to different business quality demands of the sensing data business, the voice business and the video business; and transmitting data business to a ground monitoring center by the environment monitoring nodes, voice nodes and video nodes through channels of the wireless multimedia sensor networks according to set business transmission competition strategies based on various competition windows. According to the method, differentiated service of three kinds of business is realized, so different quality of service demands of the three kinds of business is ensured, the throughput capacity of the sensing data business and the voice business is increased by reducing the throughput capacity of the video business, and the time delay of the sensing data business and the voice business is reduced by increasing the time delay of the video business.

Description

technical field [0001] The invention relates to the technical field of wireless multimedia sensor networks, in particular to a method for realizing differentiated services in a wireless multimedia sensor network in coal mines. Background technique [0002] Coal mine safety production has an urgent need for environmental monitoring, wireless voice communication and wireless video surveillance. WMSNs (Wireless Multimedia Sensor Networks, Wireless Multimedia Sensor Networks) 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. Therefore, WMSNs can be constructed underground in coal mines to further improve the capabilities of environmental monitoring, wireless voice communication and wireless video surveillance in coal mines, and ensure safe production in coal mines....

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Application Information

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IPC IPC(8): H04W74/08H04W84/18H04L12/807H04L29/06H04L47/27
CPCH04L47/27H04L65/80H04W74/0816H04W74/085H04W84/18
Inventor 尤凯明杨维
Owner BEIJING JIAOTONG UNIV
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