A low power wake-up method combining detection and scheduling mechanism

A low-power, mechanism technology, applied in power management, energy reduction, advanced technology, etc., can solve the problem of useless energy consumption, and achieve the effect of increasing sleep time, improving anti-interference performance, and avoiding energy consumption

Inactive Publication Date: 2018-12-21
CHINA GRIDCOM +3
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  • Abstract
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Problems solved by technology

But in the MAC protocol based on detection, if the slave node is woken up too early, it needs to wait for a lon

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  • A low power wake-up method combining detection and scheduling mechanism
  • A low power wake-up method combining detection and scheduling mechanism

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[0030] Hereinafter, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0031] Those skilled in the art can understand that, unless specifically stated otherwise, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the described features, integers, steps, operations, elements and / or components, but does not exclud...

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Abstract

The invention relates to the technical field of low-power wireless communication, in particular to a low-power wake-up method combining detection and scheduling mechanism, comprising the following steps: when a master node needs to wake up a slave node, encoding to generate a series of continuous bit streams with self-correlation characteristics, separating the series of bit streams by equal length and forming segments; a wake-up data segment is formed by inserting a time synchronization message at that start position of each segment and the end position of the last segment, and the wake-up data packet is for by arranging and connecting the wake-up data segments. The master node modulates the wake-up data packet into a wireless signal and continuously sends it, and the slave node periodically starts the wireless receiving function under the sleep mode, and decodes the received wireless data. The invention increases the sleep time through the detection and scheduling method, and avoidsthe energy consumption caused by the premature wake-up of the node.

Description

technical field [0001] The invention relates to the technical field of low-power wireless communication, and specifically relates to a low-power wake-up method combined with a detection and scheduling mechanism. Background technique [0002] With the continuous development of applications such as the Internet of Things and Wireless Sensor Networks (WSN), there are higher requirements for low-power wireless communication technologies. Since most wireless terminal devices cannot be connected to an external power supply due to environmental constraints, and are powered by a built-in battery, how to fully improve the working efficiency of the battery and prolong its working time is of great significance to low-power wireless communication systems. [0003] The ideal state of a slave node should be: when the master node has information to transmit to the module, the module is in the receiving state, when there is information to send, the slave node is in the sending state, and at...

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Application Information

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IPC IPC(8): H04W52/02
CPCH04W52/0216H04W52/0225H04W52/0248Y02D30/70
Inventor 王祥林大朋史兵毛珊珊陆欣韦超韩正玉程钟源苏湘远夏桃芳
Owner CHINA GRIDCOM
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