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Wireless sensor network for mine laneways

A wireless sensor and roadway technology, applied in network topology, wireless communication, mining equipment, etc., can solve the problems of inability to form a network, a single sensor, automatic real-time monitoring and data transmission difficulties, reduce wiring and construction engineering, and improve reliability. sexual effect

Active Publication Date: 2013-08-28
SHANXI COAL TRANSPORTATION & SALES GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies and defects of the prior art, provide a mine roadway wireless sensor network with self-organizing and self-healing overlapping tree structure, and improve the reliability of communication under the condition of ensuring communication efficiency, so as to solve the current situation There are problems such as the use of a single sensor in the special monitoring and monitoring system for digital mine roadways, the inability to form a network, the high cost of wired networking, complex structure, and relatively difficult automatic real-time monitoring and data transmission

Method used

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  • Wireless sensor network for mine laneways
  • Wireless sensor network for mine laneways

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1: A mine 15 # The buried depth of the coal seam auxiliary transport roadway is about 190m, the width of the roadway section is 5.2m, the height is 3.8m, and the length is 2.2km. The surrounding rock of the roadway is soft and broken, with well-developed structural fissures, and the stability of the surrounding rock of the roadway is poor, which belongs to category IV unstable surrounding rock. Arranged in the roadway as figure 1 , figure 2 The wireless sensor network used for roof abscission monitoring and monitoring is shown, the networking protocol is ZigBee protocol, and the network structure is a self-organizing and self-healing overlapping tree structure. The overall structure adopts a tree structure 2, and the wireless sensor network node 1 It only communicates with the adjacent wireless sensor network node 1, and locally adopts the grid structure 3, and the wireless sensor network node 1 only communicates with the next adjacent wireless sensor netw...

Embodiment 2

[0021] Example 2: A mine 3 # The buried depth of the coal seam working face is about 200m, and it is an island working face. The surrounding rock of the roadway is unstable surrounding rock of type V, and the roof is relatively broken. according to figure 1 The network structure of the mine roadway wireless sensor network shown above monitors the roof pressure of the working face. The number of measurement points of the wireless sensor network node 1 is 6, and the monitoring time is 8 months. The actual monitoring effect is good, and the safety hazards of roof accidents have been excluded 15 places. Others are with embodiment 1.

Embodiment 3

[0022] Example 3: A mine 3 # The relative gas emission of the coal seam is 96.46m 3 / t, the gas in the working face mainly comes from the upper adjacent layer and the goaf. according to figure 1 The network structure of the mine roadway wireless sensor network shown is to monitor the gas concentration of the working face. The communication distance between the wireless sensor network nodes 1 is 5-20m, and the monitoring time is 12 months. The actual monitoring effect is good. The gas exceeded the limit 4 times, and 3 hidden dangers of mine gas safety were eliminated. Others are with embodiment 1.

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Abstract

The invention discloses a wireless sensor network for mine laneways. The wireless sensor network comprises wireless sensor network nodes. The network nodes are global function equipment of mine laneway mine pressure, fire extinguishment preventing, water control preventing and one-ventilation-and-three-prevention monitoring system sensors. An internetworking protocol is the ZigBee protocol. A network structure is a self-organizing and self-healing overlapping tree structure. A tree-shaped structure is adopted for the whole body of the structure. One wireless sensor network node is only communicated with adjacent wireless sensor network nodes. A gridding structure is adopted for local areas. One wireless sensor network node is only communicated with sub-adjacent wireless sensor network nodes. A tree shape is adopted for the whole body of the wireless sensor network. A network topology of the local gridding structure is adopted. The tree structure is adopted for the whole body so as to ensure data transmission in a long and narrow space. The gridding structure is adopted for the local areas, and each node only can be communicated with the adjacent or sub-adjacent nodes, so that communication smoothness at failure time of a certain node is ensured.

Description

technical field [0001] The invention belongs to the technical field of monitoring and monitoring of mine tunnels in coal measure strata, and in particular relates to a wireless sensor network for mine tunnels. Background technique [0002] A wireless sensor network (Wireless Sensor Net, WSN) is a self-organizing distributed network system composed of a large number of sensor nodes with communication and computing capabilities and multi-hop wireless communication. The information of a monitoring object is processed and transmitted. Wireless sensor network is one of the important parts of Internet of Things. With the rapid development of Internet of Things technology and the continuous improvement of people's demand for Internet of Things, wireless sensor network technology has received more and more attention. Underground roadways in coal-measure strata mines have their own characteristics. On the one hand, the cross-section of the roadway is generally 10-50m 2 , the length...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W84/18E21F17/00
Inventor 李风珍王东贾存华孙春伟郑铜镖朱跃琴
Owner SHANXI COAL TRANSPORTATION & SALES GRP
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