Data transmission method of wireless sensor network

A technology of wireless sensor network and data transmission method, applied in the field of data transmission, can solve the problems of inability to meet the requirements of data transmission, increase the amount of network data interaction, increase the complexity of node listening network status and time synchronization, etc. Life cycle, the effect of saving energy consumption

Active Publication Date: 2017-01-11
SHANGHAI DIANJI UNIV
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Problems solved by technology

However, the S-MAC protocol does not consider the problem of periodic transmission of monitoring data by the network. At the same time, the dynamic change of the sleep cycle increases the complexity of nodes listening to the network status and time synchronization, and increases the amount of data interaction on the network.
[0005] The above two typical protocols cannot meet the data transmission requirements of the environmental monitoring wireless sensor network.

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  • Data transmission method of wireless sensor network
  • Data transmission method of wireless sensor network

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Embodiment Construction

[0026] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0027] Aiming at the data transmission characteristics of the environment monitoring wireless sensor network, the present invention designs a corresponding MAC protocol, which ensures that the control center can obtain the environment monitoring data periodically, and can obtain the data when the network state changes in time. At the same time, it ensures that the sleep mechanism of network nodes saves energy consumption and pr...

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Abstract

The invention relates to a data transmission method of wireless sensor network to classify node time to busy time and idle time, periodically transmit routine monitoring data in nodes in busy time and ensure realization of environmental monitoring task. When network sends an emergency data, the emergency data is prioritized in transmission to ensure that emergency is acquired by control center in time. The method of data transmission of wireless sensor network ensures that network can make environmental monitoring while discovering emergency and making quick response and processing in time. The method of data transmission of wireless sensor network can guarantee routine monitoring on the environment while discovering network emergency in time and taking the priority to transmit data to control center in time. Meanwhile, nodes may reserve sleep state, facilitating saving energy consumption and extending life cycle of network.

Description

technical field [0001] The invention relates to a data transmission method, in particular to a data transmission method applied to a wireless sensor network. Background technique [0002] At present, wireless sensor networks are widely used in environmental monitoring, data acquisition and other fields, and the media access control (MAC) protocol is an important content of the network, which affects the performance of network data transmission. Existing wireless sensor network MAC protocols are generally designed for specific application environments, such as the following two typical MAC protocols: Funnel MAC protocol and S-MAC protocol. [0003] The Funnel MAC protocol is designed to solve the problem of uneven data transmission volume when multi-hop network data converges to the aggregation node. The TDMA method is used in the data-intensive area of ​​the network, and the CSMA method is used in the data-sparse area to improve the network data transmission efficiency. How...

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Application Information

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IPC IPC(8): H04W52/02H04W72/04H04W72/12H04W84/18
CPCH04W52/0225H04W52/0248H04W52/0258H04W72/0446H04W84/18H04W72/569Y02D30/70
Inventor 范光宇
Owner SHANGHAI DIANJI UNIV
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