A data collection method for wireless sensor networks based on tunnel environment

A wireless sensor and tunnel environment technology, applied in the field of communication, can solve problems such as consumption, achieve the effect of improving the quality of data collection, maximizing the total utility of the network, and reducing energy consumption

Active Publication Date: 2021-09-21
SOUTH CHINA UNIV OF TECH
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  • Abstract
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Problems solved by technology

[0004] In order to overcome the problem that nodes in wireless sensor networks consume a large amount of battery energy due to multi-hop or single-hop wireless forwarding data, and consider the fairness of sensor nodes, a method for collecting data in wireless sensor networks based on tunnel environment is provided. Data, the sensor nodes forward the data to the mobile car in the form of backscatter communication, this collection method can reduce energy consumption, and can improve the quality of sensor network data collection, and achieve a fair data collection ratio for each node

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  • A data collection method for wireless sensor networks based on tunnel environment
  • A data collection method for wireless sensor networks based on tunnel environment
  • A data collection method for wireless sensor networks based on tunnel environment

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Embodiment Construction

[0054] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0055] Such as figure 1 As shown, the system model based on the tunnel wireless sensor network includes a mobile car and several sensor nodes deployed in the tunnel environment to collect tunnel environment data. The car has the function of transmitting carrier signal and receiving data at the same time. In the model, the trolley passes through the sensor network periodically and at a constant speed along the track (dashed line AB in the figure) at a speed v to collect data sensed by sensor nodes in the area, and the track AB is long L.

[0056] Said method comprises the following steps:

[0057] Step 1: Use the discretization method to divide T into |T| equal time slots, and obtain a set of continuous time slots in which each sensor node can communicate with the car. ...

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Abstract

A tunnel environment-based wireless sensor network data collection method disclosed by the present invention includes the following steps: Step 1: sensor nodes are arranged in the tunnel environment for collecting tunnel environment data, and mobile cars are used to collect data. Use the discretization method to divide the moving cycle of the car into several time slots, and obtain a set of continuous time slots in which each sensor node can communicate with the car; Step 2: For each time slot, calculate the time slot that can communicate with the car in this time slot The throughput of all sensor nodes; Step 3: For each time slot, allocate the time slot to the sensor node with the largest utility gain, and obtain the time slot allocation scheme that maximizes the total utility of the network. The invention applies the backscattering communication technology to the wireless sensor network based on the tunnel environment, which can reduce energy consumption, maximize the total utility of the network, improve the data collection quality of the sensor network, and realize the fairness of the data collection ratio of each node.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a tunnel environment-based wireless sensor network data collection method. Background technique [0002] In the currently deployed wireless sensor networks, the data sensed by sensor nodes is gathered to the data sink node in a multi-hop or single-hop manner through wireless communication. In the tunnel-based wireless sensor network, the sensor nodes are deployed in the tunnel to perceive the tunnel environment data. Furthermore, the built-in radio frequency module of the sensor generates radio frequency signals to wirelessly forward the sensed data. The radio frequency transmission consumes a lot of battery energy. In some specific tunnel scenarios, such as mines and underground oil pipelines. Moreover, in a wireless sensor network, the greater the node communication distance, the greater the power required for the node to transmit signals. After the node is deployed, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/38H04W52/02H04W72/04H04W84/18
CPCH04W52/02H04W72/04H04W84/18H04W4/38Y02D30/70
Inventor 柯峰蔡发明林凡
Owner SOUTH CHINA UNIV OF TECH
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