Research On Hydrological Information Monitoring System Based On LoRa For Geological Exploration Drilling

Underground hydrological information in mining areas is closely related to mine safety and environmental protection.At present,the monitoring of geological exploration and hydrological information is mainly based on observation wells,and only one aquifer information can be collected.The efficiency of data collection is low and the maintenance cost of observation wells is high,which cannot meet the current development needs of green mines.Therefore,this paper designs and implements a Lo Ra-based geological survey borehole hydrological information monitoring system,which can simultaneously observe multiple areas and multiple aquifers in the field,and the boreholes can be landfilled without manual maintenance.The monitoring system designed in the article mainly includes four parts: data collection,data transmission,data storage query and monitoring node endurance.The data acquisition part is composed of fiber grating sensor,fiber grating analyzer and STM32 micro-controller.The sensor signal is demodulated into digital signal by fiber grating analyzer,and then STM32 micro-controller reads the analyzer data according to Modbus protocol.The data transmission part is composed of the monitoring node Lo Ra transmitting module,the sink node Lo Ra receiving module and the RS-485 communication cable connected to the upper computer.The custom Lo Ra communication protocol and the upper computer data receiving protocol are formulated to complete the data transmission.In the data storage query part,the monitoring node uses the SD card to realize the real-time backup of the collected data,the monitoring center uses the My SQL database to store the monitoring data,uses the Lab VIEW software and G language to complete the upper computer interface design,and uses the SQL structured query statement to complete the database historical monitoring data Query operation.The endurance part of the monitoring node is composed of solar panels,solar controllers and batteries.The solar controller monitors the working status of the batteries in real time.The STM32 microcontroller reads the battery voltage and other information through the RS-485 interface.The test results show that the Lo Ra-based geological exploration and drilling hydrological information monitoring system has high acquisition accuracy,convenient networking,node transmission effective distance of up to 5 kilometers,and high system reliability.The use of solar power generation devices for power supply can solve field monitoring The system power supply problem has a good application prospect in the field of geological exploration data monitoring.Figure [56] table [17] reference [65]...