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Metal Mine ›› 2016, Vol. 45 ›› Issue (10): 128-131.

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Design on a New Type of Landslide Wireless Remote Monitoring System

Lu Zhongyun1,Tuo Xianguo1,2,Li Huailiang1,Shi Fanrong1   

  1. 1.Key Laboratory for Radioactive Waste and Environmental Security,Mianyang 621010,China;2.State Key Laboratory of Geohazard Prevention and Geo-environment Protection,Chengdu 610059,China
  • Online:2016-10-15 Published:2016-11-04

Abstract: According to such requirements as high precision,high reliability,high degree of automation and low power consumption of the existing landslide monitoring system,a full-digital high precision wireless remote landslide monitoring system was designed.The system is based on STM32 as core and integrated with SCA100T precision dual-axis accelerometer,MPS-S-400 mm-P displacement and rain gauge SRY-1;GSM network access is realized by using SIM900 module.The 12 V/40 AH battery and small solar power systems are adopted to realize power supply for the system.The dynamic cycle collection mechanism in system programming are adopted to lower the power consumption,and the rainfall threshold trigger,driving sensor and displacement sensor for acquisition combined with the GSM are used to realize remote data transmission.The experimental results show that the system can realize the automatic remote collection and transmission of landslide area rainfall,the surface displacement and deep dip angle parameter with rainfall collection precision 0.1 mm,surface displacement collection precision 0.022 mm,and the deep dip angle collection precision up to 0.035°.The continuous working time of the system lasts 15 days in the absence of solar rechargeable battery,and more than 90 days under normal sunshine.

Key words: Landslide monitoring, Full-digital, High-precision, STM32