Traffic self-adaptive energy-saving media access control method

A media access control and self-adaptive technology, applied in the direction of reducing energy consumption, advanced technology, power management, etc., to achieve the effect of saving protocol overhead and improving success rate

Inactive Publication Date: 2014-05-21
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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Problems solved by technology

[0003] The purpose of the present invention is to provide a traffic self-adaptive energy-saving medium access control method, which can effectively solve the energy-saving problem of wireless nodes in the industrial environment and effectively prolong the life cycle of the wireless control network according to the characteristics of the wireless industrial control network. Mitigating energy issues holding back wireless networking applications in industrial control

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[0022] The present invention will be described in further detail below in conjunction with the embodiments shown in the accompanying drawings.

[0023] The present invention uses the multi-user low power interception technology MLPD (Multi-user Low Power Dictation) in the physical layer. Multi-user low power intercept detection is designed to reduce collisions and save power. In the wireless industrial control network, each wireless communication node has 4 states. They are sending state, receiving state, listening state and dormant state respectively. The research shows that the main energy loss of wireless communication nodes is in the sending state of the wireless communication module, followed by the energy loss in the receiving state and idle listening, and the energy loss in the dormant state is the least. Therefore, when designing the working state of the communication node, try to use low power to monitor the channel and reduce the transmission power to achieve the p...

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Abstract

A traffic self-adaptive energy-saving media access control method relates to media access control methods. According to the method, an MAC (Media Access Control) protocol for energy saving according to the flow of a physical layer, namely, TAE-MAC (Traffic Adaptive Energy-saving-Media Access Control) is used; the TAE-MAC uses an RTS (Request to Send) / CTS (Clear to Send) reservation mechanism, a data frame DS (Data Structure) is constructed for completing and achieving RTS / CTS reservation and confirmation, a non-competitive TDMA (Time Division Multiple Access) protocol is used for achieving wireless channel access control, the operation mechanism of wireless nodes is divided into two parts of an active stage and an inactive stage, and the TAE-MAC protocol is used for nodes for achieving the wireless channel access control of the nodes when the data frame DS is transmitted for completing a handshake. The traffic self-adaptive energy-saving media access control method based on characteristics of wireless industrial control networks can effectively solve the problem of energy saving of wireless nodes in industrial environments, can effectively prolong the service life cycle of a wireless control network, and relieves the application blocking of a wireless network in the field of industrial control due to the energy problem.

Description

technical field [0001] The invention relates to a medium access control method, in particular to a flow self-adaptive energy-saving medium access control method. Background technique [0002] Today, with the rapid development of industrial networks, wireless control networks are widely used in industrial environments, and the problems of wireless industrial control networks are becoming increasingly prominent. Due to the complexity and variability of the industrial environment, and the limited energy of industrial wireless nodes, these factors make energy saving a key factor for the smooth communication of wireless nodes. Especially the energy consumption of wireless communication nodes, because the energy consumption of wireless communication nodes in the control network is determined by the energy of the battery, and too frequent battery replacement will greatly hinder the application of wireless networks in industrial automation. If the energy problem of the communic...

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Application Information

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IPC IPC(8): H04W52/02H04W74/08
CPCY02D30/70
Inventor 王军逄玉俊王健姚晓旦孙浩
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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