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Method for data energy conservation transmission between nodes in wireless sensor network

A wireless sensor, energy-saving transmission technology, applied in the direction of digital transmission system, transmission system, wireless communication, etc., can solve the problems of large energy consumption, conflicting data, and large data volume of nodes in the wireless sensor network, so as to reduce network delay and The average power consumption, the process of reducing data retransmission, and the effect of reducing transmission delay

Active Publication Date: 2015-04-29
苏州博联科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for energy-saving transmission of data between nodes in a wireless sensor network, which solves the problem that the large amount of data in the network in the prior art can easily lead to conflicts and cause data retransmission; in addition, the energy consumption of nodes in the wireless sensor network is too high. Major and other issues

Method used

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  • Method for data energy conservation transmission between nodes in wireless sensor network
  • Method for data energy conservation transmission between nodes in wireless sensor network
  • Method for data energy conservation transmission between nodes in wireless sensor network

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Experimental program
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Embodiment

[0034] (1) Channel reservation and data sending process in this embodiment

[0035] In the first step, the source node sends an RTS packet on channel 0

[0036] RTS(0)[2]{1,2,3} indicates that the source node sends an RTS packet on channel 0, and the number of data packets attached to the RTS packet is 2, and the available idle channels are channels 1, 2 and 3. Since the control packets of all nodes are on channel 0, each node can crosstalk the CONFIRM packets of neighboring nodes to know which channels the neighboring nodes transmit data packets on, and the source node should send these channels when sending RTS packets. exclude.

[0037] In the second step, the destination node replies with a CTS packet

[0038] CTS(0)[2]{3} indicates that the destination node knows that it should receive 2 data packets continuously, and gives its own free channel as channel 3. Similarly, the destination node should also exclude the channel in the CONFIRM packet of the adjacent node that...

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Abstract

The invention discloses a method for data energy conservation transmission between nodes in a wireless sensor network. Data transmission between a source node and a goal node is adhered to a Timeout media access control (T-MAC) protocol. The method is characterized in that the method further comprises the steps that when a node timer times, an external crystal oscillator circuit and a real time clock (RTC) module in a microprogrammed control unit (MCU) to time according to node states; when the nodes are in a wake-up state, the nodes uses the external crystal oscillator circuit to time; and when the nodes are in a dormant state, the nodes are switched to use the RTC module in the MCU to time. The method effectively reduces conflict rate, remarkably reduces network delay and reduces extra power consumption caused by data retransmission to a certain degree. Different models are utilized to time in wake-up and dormant states, so that the purpose of remarkably reducing average power consumption of nodes of the wireless sensor network.

Description

technical field [0001] The invention belongs to the technical field of wireless sensor network data transmission, in particular to a method for energy-saving data transmission between nodes in a wireless sensor network. Background technique [0002] In WSN applications such as field environment monitoring, the wireless sensor network is powered by batteries, and is generally located in a relatively remote field, and it is impossible to often assign personnel to charge these wireless sensor nodes on site. Therefore, this type of WSN application has certain advantages for power consumption control. strict requirements. In addition, in WSN applications such as field environmental monitoring, it may be necessary to monitor environmental parameters such as water quality, water temperature, and air in an area at the same time, which requires various sensors to work at the same time and coordinate with each other to complete environmental monitoring tasks. These sensor nodes will ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/02H04L1/00
CPCY02D30/70
Inventor 刘昊马千里张轩
Owner 苏州博联科技有限公司
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