Research And Development Of Drip Monitoring And Automatic Sampling System In Karst Cave

All living things cannot live without water.Karst area in southwest China suffered many sharp cliff to dissolve and long geological period,the effection of underground cave space as well as the surface development is good,achieve mastery through comprehensive effect each other.Although there is much water resources,but when the rain fell to the ground,will follow to dissolving gap and rock permeability.Therefore,the ability to preserve and provide water for the people is very shortage.In order to solve the problem of water shortage for the general public,so it is urgent and important to study the groundwater distribution in karst areas in southwest China and the flowing trend of groundwater.To solve this problem,we need much big data about water resources in karst area.We researched and developed a set of automatic sampling device,which can be used to monitor droplet velocity automatically in karst caves and according to the monitoring drop velocity rate.Via collecting samples,as well as the monitoring of temperature and humidity information and droplet velocity.It provides scientific data to supporting for studying the influence of surface precipitation on underground karst cave and the establishment of relevant geologic model in Karst area.Therefore,the main functions of the system include six parts: 1.First is the water droplet sensor,water droplets sensor through the perception of water droplets signal,water droplets signal conversion into electrical signals,through the signal conditioning circuit,to become the digital signal can be recognized by the controller.By realizing the realization of water droplets induction,and drop rate monitoring.2.Large-capacity data transfer function,the system to obtain data is stored in the MCU external RAM,when the RAM data stored full the SD card automatically stored.3.The system can recognize and record the water droplet signal of two modes and realize automatic bottle changing.4.Low power consumption mode,when no water droplets signal induction,the system will enter to the sleeping mode.5.It is able to set parameters through the host computer,read out the obtained data through the reader.6.The system is running more stable and more efficient after we implanted the operating system UCOS-II.