A wireless sensor network for mine roadway
A wireless sensor and roadway technology, applied in network topology, wireless communication, mining equipment, etc., can solve problems such as inability to form a network, single sensor, complex structure, etc., achieve the effect of reducing wiring and construction projects, and improving reliability
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Embodiment 1
[0019] Embodiment 1: A certain 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 sen...
Embodiment 2
[0021] Embodiment 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 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] Embodiment 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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