Study On Automatic Monitoring And Sampling System Of Karst Water Drop

Nowadays, the use of water resources has caused deep concern and reflection among people. In face of serious pollution of water resources,at the same time natural disasters such as drought, soil erosion are severe increasingly because of the lack of water resources,more and more people has begun to pay attention to the problem.It is planning and using water resource reasonably that we should take charge at present.Besides,it is crucial to find fresh water to solve those disastersIf groundwater,as an important part of water resources, could be put to use, the problem of water resources shortage will be relieved effectively. In terms of the geography in our country, the groundwater resources in most areas are abundant. However, because of some terrain limitation, the ulitization rate of groundwater is very low. For example, Yunnan province is located in the southwest of China,where many raindrops penetrate into the ground, which leads to many caves and undercurrent. Through the collection and analysis of water drop in caves, the real-time monitoring for groundwater and the research for groundwater’s distribution and flow direction have been a significant topic currently. So far,there has yet been similar or identical method as the research in this paper,which is designed for innovation in this article.At present,Chinese technology on groundwater development seems immature and the monitoring for groundwater is still on the stage of manual collection sampling. Therefore, the system of underground waterdrop’s automatic monitoring and sampling is designed in this paper, which has multiple integrated modules on hardware and used C language programming in software, in general, the design has made a big improvement than the previous.In order to make the data more accurate, some further optimization for water droplets signal conditioning circuit are taken and the signals processed are more easy to recognize and read by the MCU. In addition, three level cache is also designed to solve the problem of large capacity storage and minimize power consumption at the same time; In this system we also use the external clock chip, which can make the precision of the clock reach to millisecond level and make water droplets stored more accurate.After repeated simulating tests, the results show that the system designed can monitor and record the water drop data automatically and achieve the function of the automatic sampling. The recorded data can be accurate and reliable, which could provide an effective way for groundwater monitoring.