Communication implementation method of industrial wireless sensor network
A sensor network and implementation method technology, applied in the field of multi-access control of industrial wireless sensor networks, can solve problems such as difficulty in reducing power consumption at the same time, meet the requirements of channel multi-access, reduce device power consumption, low latency and fully dispersed effect
Active Publication Date: 2020-03-27
XIAN UNIV OF POSTS & TELECOMM
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Problems solved by technology
This method uses a new power and rate control strategy to solve the problem that it is difficult to simultaneously reduce power consumption and reduce delay and delay jitter when wireless sensor devices perform multi-access control
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[0030] In order to better explain the present invention and facilitate understanding, the present invention will be described in detail below through specific embodiments in conjunction with the accompanying drawings.
[0031] All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.
[0032] figure 1 It is a flow chart of a communication implementation method for an industrial wireless sensor network provided by an embodiment of the present invention, as shown in figure 1 As shown, the method includes the following steps:
[0033] Such as figure 1 As shown, in step S110, each device n...
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The invention relates to a communication implementation method of an industrial wireless sensor network. The method comprises the following steps: each equipment node does not monitor a channel when no data is sent; if data is sent, dividing the data into a plurality of short data packets with equal length, sending the short data packets into a queue to be sent, starting to monitor a channel, andobtaining current interference power Z(t); taking out a data packet from the queue to be sent, and obtaining the current interference power Z(t + 1); calculating an expected possibly introduced interference power ZN(t + 1); calculating the sending power P(t + 1) and the sending rate R(t + 1) which should be adopted, so that the total power E(t + 1) of the sent data packet is minimum; and sending the data packet at the sending power P(t + 1) and the sending rate R(t + 1). According to the invention, by constructing a new power and rate control strategy, the power consumption of the equipment isreduced, and the low-delay and completely dispersed channel multi-path access requirements can be met.
Description
technical field [0001] The invention relates to the field of industrial wireless sensor network communication, in particular to a multi-path access control method for an industrial wireless sensor network. Background technique [0002] Future industrial wireless sensor networks will consist of a large number of low-cost devices that communicate dynamically wirelessly with access points or adjacent devices, transmitting delay-sensitive data in smaller packets. [0003] In a scenario with dense equipment, because the traffic of wireless sensor devices is intermittently transmitted in time, if traditional interference avoidance strategies (such as time slot-based and CSMA-based strategies) are adopted on the wireless channel, multi-channel Access control will suffer from high latency and latency jitter, which can severely impact applications that require timely delivery, but data volumes are small and intermittent. [0004] If the interference-tolerant strategy is adopted, eac...
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IPC IPC(8): H04W28/06H04W52/02H04W52/24H04W52/26H04W84/18
CPCH04W28/065H04W52/0238H04W52/243H04W52/26H04W84/18Y02D30/70
Inventor 李刚王晓梅
Owner XIAN UNIV OF POSTS & TELECOMM