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煤矿井下无线传输衰减分析测试与最佳工作频段研究

孙继平 梁伟锋 彭铭 张高敏 潘涛 张侯 李小伟

孙继平,梁伟锋,彭铭,等. 煤矿井下无线传输衰减分析测试与最佳工作频段研究[J]. 工矿自动化,2023,49(4):1-8.  doi: 10.13272/j.issn.1671-251x.18093
引用本文: 孙继平,梁伟锋,彭铭,等. 煤矿井下无线传输衰减分析测试与最佳工作频段研究[J]. 工矿自动化,2023,49(4):1-8.  doi: 10.13272/j.issn.1671-251x.18093
SUN Jiping, LIANG Weifeng, PENG Ming, et al. Analysis and testing of wireless transmission attenuation in coal mine underground and research on the optimal operating frequency band[J]. Journal of Mine Automation,2023,49(4):1-8.  doi: 10.13272/j.issn.1671-251x.18093
Citation: SUN Jiping, LIANG Weifeng, PENG Ming, et al. Analysis and testing of wireless transmission attenuation in coal mine underground and research on the optimal operating frequency band[J]. Journal of Mine Automation,2023,49(4):1-8.  doi: 10.13272/j.issn.1671-251x.18093

煤矿井下无线传输衰减分析测试与最佳工作频段研究

doi: 10.13272/j.issn.1671-251x.18093
基金项目: 国家重点研发计划项目(2016YFC0801800)。
详细信息
    作者简介:

    孙继平(1958—),男,山西翼城人,教授,博士,博士研究生导师,中国矿业大学(北京)原副校长;获国家科技进步奖和技术发明奖二等奖4项(第1完成人3项);作为第1完成人获省部级科技进步特等奖和一等奖8项;作为第1完成人主持制定中华人民共和国煤炭行业、安全生产行业和能源行业标准40项;作为第1发明人获国家授权发明专利100余件;主持制定《煤矿安全规程》第十一章“监控与通信”;被SCI和EI检索的第1作者或独立完成论文100余篇;作为第1作者或独立完成著作12部;作为国务院煤矿事故调查专家组组长参加了10起煤矿特别重大事故调查工作;E-mail:sjp@cumtb.edu.cn

  • 中图分类号: TD655

Analysis and testing of wireless transmission attenuation in coal mine underground and research on the optimal operating frequency band

  • 摘要: 5G,UWB,ZigBee,WiFi6等矿井移动通信、人员及车辆定位、无线传输等技术在煤矿井下应用,促进了煤矿安全生产和煤矿智能化建设。然而受电气防爆的限制,煤矿井下无线发射功率不大于6 W,制约着矿井无线传输距离,增加了基站用量和系统成本,不便于系统使用和维护。在无线发射功率受电气防爆限制的条件下,选择传输衰减较小的无线工作频段,可有效提高无线传输距离,减小基站用量和系统成本。为满足矿井无线传输工作频段选择与优化的需求,在国家能源集团国神公司三道沟煤矿的辅助运输大巷和综采工作面分别进行了700 MHz~6 GHz频段的无线传输测试,并对测试结果进行了分析,提出了矿井无线传输优选频段:① 辅助运输大巷无线传输的最佳工作频段为700~910 MHz。② 综采工作面无线传输的最佳工作频段为700~1 710 MHz。③ 辅助运输大巷无线传输衰减比综采工作面无线传输衰减小,且随着频率增大,辅助运输大巷与综采工作面无线传输衰减的差值变小。④ 矿井无线传输的最佳工作频段为700~1 710 MHz。

     

  • 图  1  辅助运输大巷测试现场

    Figure  1.  Test site in auxiliary transportation roadway

    图  2  综采工作面测试现场

    Figure  2.  Test site in fully mechanized working face

    图  3  辅助运输大巷设备安装现场

    Figure  3.  Equipment installation site in auxiliary transportation roadway

    图  4  综采工作面设备安装现场

    Figure  4.  Equipment installation site in fully mechanized working face

    图  5  辅助运输大巷不同频率无线传输衰减曲线

    Figure  5.  Curves of wireless transmission attenuation at different frequencies in auxiliary transportation roadway

    图  6  辅助运输大巷540 m内不同频率无线传输平均衰减曲线

    Figure  6.  Curves of average of wireless transmission attenuation at different frequencies within 540 m of auxiliary transportation roadway

    图  7  综采工作面不同频率无线传输衰减曲线

    Figure  7.  Curves of wireless transmission attenuation at different frequencies in fully mechanized working face

    图  8  综采工作面210 m内不同频率无线传输平均衰减曲线

    Figure  8.  Curves of average wireless transmission attenuation at different frequencies within 210 m of fully mechanized working face

    图  9  辅助运输大巷和综采工作面210 m内不同频率无线传输平均衰减和衰减差值曲线

    Figure  9.  Curves of average attenuation and attenuation difference of wireless transmission at different frequencies within 210 m of auxiliary transportation roadway and fully mechanized working faces

    表  1  辅助运输大巷不同频率无线传输衰减

    Table  1.   Wireless transmission attenuation at different frequencies in auxiliary transportation roadway

    收发天线
    距离/m
    辅助运输大巷不同频率无线传输衰减/dB
    700 MHz910 MHz1 200 MHz1 500 MHz1 770 MHz1 950 MHz2 400 MHz2 595 MHz3 550 MHz4 800 MHz5 400 MHz6 000 MHz
    1033.9245.6947.4042.4846.8746.3447.7349.8750.8054.8753.8247.93
    2042.1848.3948.5650.5951.8253.6457.9956.9860.4562.2564.4963.68
    3046.4750.1055.7553.8857.2256.6558.6360.2764.8466.2269.8170.51
    4045.5647.0955.9458.6662.9259.7962.2063.9066.3867.9569.5573.23
    5053.0151.0749.9257.5363.0662.3562.9965.7668.0671.2671.7372.49
    6047.3359.7756.4251.6061.1065.0173.1768.4571.7670.7177.1574.04
    7047.1153.9562.9160.8461.2161.5477.7065.3569.3271.6374.2079.21
    8052.8449.6963.7468.5861.0258.1278.1465.7873.5673.4274.5479.41
    9045.8957.3759.5268.3268.0868.2478.6170.2473.5472.9777.8478.86
    10054.4350.7653.7062.2273.5567.3976.1568.9674.6173.5977.7677.21
    11049.0050.9357.5757.7569.5672.1067.9769.0871.5373.6971.4178.54
    12047.4554.7656.7157.1862.1871.8667.8072.8567.7175.9574.7281.78
    13051.8955.6055.9458.1065.0373.5567.4576.5867.0581.0079.8074.43
    14048.9254.6352.8865.0567.2865.8567.0972.1369.6280.4882.2976.70
    15053.0459.1658.6261.3559.8366.3064.6473.2973.4280.9777.3477.03
    16051.7959.3260.8057.9864.4665.6964.0678.6176.5781.6577.6679.28
    17051.5253.7660.3756.9265.8162.7674.9075.4178.5976.4781.2986.61
    18057.1253.8856.9359.0665.4866.3075.7271.7182.7377.6176.0888.48
    19054.8458.1859.3261.1565.9968.7276.1671.5482.4577.5174.9685.60
    20053.3061.8260.9161.9061.0066.2275.2770.1481.9779.4177.3284.41
    21058.6559.2261.2364.5061.2565.2675.5670.6180.1582.6677.1279.78
    22058.4859.7360.8863.4860.1361.7972.9069.0280.8985.5174.5779.05
    23054.3960.7861.4661.8561.2361.9770.0472.3077.1086.2976.4584.00
    24055.8261.5156.3863.9463.6463.8165.5170.8972.0988.0777.9077.40
    25058.6757.5855.8864.3564.6164.4369.1670.3774.8185.1084.9778.59
    26055.8656.4756.8468.1066.3863.6471.2872.5074.1081.7184.1789.82
    27058.3762.5659.6965.6071.5067.8769.7471.3972.9487.0985.7087.15
    28061.4460.2459.4963.0167.8770.9669.8966.6076.4185.7483.2590.50
    29062.0557.7756.7061.3866.5469.3980.3167.1172.0489.0483.8886.13
    30071.5659.6158.6362.7867.0074.6273.9271.3171.3985.8786.5187.20
    31067.8858.0261.3863.0366.9880.5566.7977.3371.9381.6783.8089.43
    32059.3257.5061.8370.2766.6276.1469.1570.8871.4084.7287.8587.24
    33060.7061.4358.0867.7369.8177.2567.5270.8969.0183.3385.0890.30
    34060.1859.3359.5260.1570.7469.6468.1369.3372.7386.0881.9188.64
    35060.2960.3361.2762.1765.2768.8167.2271.7879.7682.1482.7487.22
    36061.5762.4262.7164.5863.8372.6571.1473.2785.3378.7981.2094.62
    37064.6959.7260.4569.2869.0566.6676.5072.2582.8779.2886.5087.47
    38064.0558.8762.1966.8166.6368.2076.3775.6184.7980.3383.9688.69
    39063.3060.9264.7762.1468.8069.5371.8578.3675.7283.3981.4485.02
    40062.7060.9066.5566.6965.6865.3376.8275.1775.4379.1179.6684.36
    41064.6964.1075.6266.0870.1167.4476.0375.0878.3679.3485.7885.13
    42065.5466.1366.0369.5269.3677.1577.4775.8178.1182.4481.0984.27
    43066.1162.6763.8964.2069.2370.0075.8274.8380.5278.8381.0086.10
    44066.5364.6070.9564.6372.2868.6871.5575.7178.6278.5381.2986.11
    45065.1763.0473.3864.8269.7268.6375.0178.2281.3982.2682.8185.33
    46065.7862.0165.1068.5170.8569.1381.7473.9782.6282.9486.1191.38
    47065.2065.1865.3769.2273.4968.4673.4173.6778.5078.0582.7490.41
    48066.2364.8675.7964.2475.0671.6074.0471.7776.9376.2383.2988.60
    49065.0764.8072.3166.5681.2774.0873.2669.7179.0778.3383.6588.42
    50068.2066.7067.8366.2775.2474.9870.6973.2378.2978.5483.7486.63
    51068.1965.4872.5672.8271.5374.2072.7375.1381.1678.9884.9189.51
    52068.1866.0469.2271.7770.1873.7574.0474.3083.6278.3282.1789.90
    53070.0868.2875.6469.2470.2678.7673.9376.8787.5379.1781.6386.33
    54068.4969.8971.9169.4071.9489.7074.6277.9385.8380.3481.2787.46
    下载: 导出CSV

    表  2  辅助运输大巷540 m内不同频率无线传输平均衰减

    Table  2.   Average wireless transmission attenuation at different frequencies within 540 m of auxiliary transportation roadway

    频率/MHz7009101 2001 5001 7701 950
    平均衰减/dB58.1758.9761.5863.1566.4468.21
    频率/MHz2 4002 5953 5504 8005 4006 000
    平均衰减/dB71.2771.3075.4978.8579.5282.92
    下载: 导出CSV

    表  3  综采工作面不同频率无线传输衰减

    Table  3.   Wireless transmission attenuation at different frequencies in fully mechanized working face

    收发天线
    距离/m
    综采工作面不同频率无线传输衰减/dB
    700 MHz910 MHz1 200 MHz1 500 MHz1 770 MHz1 950 MHz2 400 MHz2 595 MHz3 550 MHz4 800 MHz5 400 MHz6 000 MHz
    1037.2844.8947.2842.5647.2449.0449.5750.7948.6655.5753.4856.22
    2047.3548.4653.3145.5656.5858.1159.5260.6960.3766.2167.1268.37
    3054.6154.3758.0853.8763.1663.1963.5666.7565.6771.5572.2073.17
    4057.0755.6757.1458.3963.5365.6967.8269.6166.4476.2673.9674.75
    5060.2267.7059.5660.9763.1164.0669.0272.6973.0974.1875.1674.47
    6057.7863.8166.0762.4266.2665.8968.9471.2471.0177.5380.2976.80
    7058.9765.0771.2562.3269.0367.8868.2071.8375.0577.9379.7581.78
    8060.3567.2465.3466.6673.8471.8971.7775.0677.7781.9280.6978.71
    9064.0971.4665.8368.5379.6578.3671.2173.1479.3882.6084.2679.68
    10067.4472.2469.0669.9883.7177.1472.3778.7672.3881.5080.1882.70
    11067.1872.6771.1171.0283.3879.0477.1179.8475.6982.5087.4980.34
    12070.0674.5271.1071.8777.8677.9683.2979.3078.3385.6485.1582.81
    13075.5179.2672.3172.5177.6777.7080.3878.5778.2485.6285.9387.73
    14077.7378.4475.5971.0477.1578.1679.1983.3577.1386.4682.2588.08
    15080.3783.9777.0671.2879.4179.4384.8088.1376.3989.3082.5489.50
    16084.5082.0878.2971.6680.1178.9485.7386.7285.4985.1983.7181.58
    17084.1483.5779.2375.9281.4782.3286.8494.3285.0785.0488.2282.46
    18085.1889.9079.3876.5681.5383.0184.3791.9090.3287.1287.9385.31
    19086.4892.0281.2877.0081.4682.0287.6889.2887.5486.8588.2587.99
    20086.5989.2483.5878.8880.1580.9689.9187.4087.8785.6390.7889.87
    21089.0888.1981.2481.4979.1880.3185.3792.9190.5692.2287.2091.96
    下载: 导出CSV

    表  4  综采工作面210 m内不同频率无线传输平均衰减

    Table  4.   Average wireless transmission attenuation at different frequencies within 210 m of fully mechanized working face

    频率/MHz7009101 2001 5001 7701 950
    平均衰减/dB69.8672.2869.9867.2873.6773.19
    频率/MHz2 4002 5953 5504 8005 4006 000
    平均衰减/dB76.0877.7976.8480.5680.6581.02
    下载: 导出CSV

    表  5  辅助运输大巷和综采工作面210 m内不同频率无线传输平均衰减和衰减差值

    Table  5.   Average attenuation and attenuation difference of wireless transmission at different frequencies within 210 m of auxiliary transportation roadway and fully mechanized working faces

    位置不同频率无线传输平均衰减/dB
    700 MHz910 MHz1 200 MHz1 500 MHz1 770 MHz1 950 MHz2 400 MHz2 595 MHz3 550 MHz4 800 MHz5 400 MHz6 000 MHz
    辅助运输大巷210 m内49.8254.0556.9158.8462.6163.9969.0468.4571.6773.9274.3376.63
    综采工作面210 m内69.8672.2869.9867.2873.6773.1976.0877.7976.8480.5680.6581.02
    衰减差值/dB19.3218.5512.768.3310.999.406.519.754.636.886.464.05
    下载: 导出CSV
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    [16] 孙继平. 煤矿信息化自动化新技术与发展[J]. 煤炭科学技术,2016,44(1):19-23,83. doi: 10.13199/j.cnki.cst.2016.01.004

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    [18] 孙继平,张高敏. 基于混合射线追踪的矿井电磁波分析方法[J]. 煤炭学报,2022,47(7):2834-2843. doi: 10.13225/j.cnki.jccs.2021.1920

    SUN Jiping,ZHANG Gaomin. Mine electromagnetic wave analysis method based on mixed raytracing[J]. Journal of China Coal Society,2022,47(7):2834-2843. doi: 10.13225/j.cnki.jccs.2021.1920
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    ZHANG Gaomin,LIU Yi,PENG Ming. Numerical analysis method of the electromagnetic fields in coal mine roadway using UWR-FDTD[J]. Journal of China Coal Society,2022,47(11):4157-4166. doi: 10.13225/j.cnki.jccs.2022.0823
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    SUN Jiping, ZHANG Gaomin. Research on 5G frequency band selection and antenna optimization setting in coal mine[J]. Industry and Mine Automation. 2020, 46(5): 1-7.
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出版历程
  • 收稿日期:  2023-03-24
  • 修回日期:  2023-04-04
  • 网络出版日期:  2023-04-27

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