Design And Development Of Water Quality Monitoring System Based On LabVIEW

The total amount of water resources in China is 2 trillion and 800 billion billion cubic meters.The surface water is 2 trillion and 700 billion billion cubic meters,and the groundwater is 830 billion cubic meters.The total amount of water resources is the sixth in the world and the per capita possession of 2240 cubic meters,accounting for eighty-eighth of the world's 153 statistics.There are many problems in the current situation of water resources in China,such as insufficient total amount,low per capita share,uneven distribution of regional distribution,no matching of soil and water resources,more and more serious water pollution and shortage of urban water resources.Water pollution has become one of the most important factors restricting the development of our economy and society.It has attracted the attention of the state and local governments.Aquaculture environmental factors play a decisive role in aquatic animals and plants,and directly affect the yield and quality of aquatic animals and plants.Environmental factors such as temperature,acidity and alkalinity(pH),salinity,ammonia nitrogen value,dissolved oxygen(DO)and electrical conductivity of aquaculture water play a leading role in the growth of aquaculture fishes.It is of great practical significance to study the host computer operation system of wireless aquaculture parameter monitoring system suitable for China's actual conditions.Data collection system and it can be regarded as part of the data acquisition and data processing parts.In PC with virtual instrument can share the hardware and software resources,fast and convenient to form all kinds of digital signal processing system,and can be easily used to the strong function of computer,signal analysis,data processing,storage and graphical display,etc,so as to achieve a data signal processing.The system is in NI company introduction of a language of virtual instrument based on G LabVIEW software development tools under the environment of development,in view of the topics write data acquisition,storage,print,and other modules,through to the hardware of control program to write on the realization of hardware operation NI drive,combined with the specific conditions of use to write data sampling procedures.The system to provide the rich data analysis function,and the data on system analysis function in detail.Introduction to data acquisition,data storage and playback,data processing module.In order to realize the aquaculture,the signal collection of the water quality parameter monitoring system is convenient,the data wireless transmission,the operation interface is simple,and the data sharing can be realized between the host computer.In this paper,a wireless water quality monitoring system based on LabVIEW is designed.The system uses the MSP430 micro controller as the lower computer,the nRF905 is the wireless communication module,the central PC is the upper computer,the host computer monitoring software is built through the LabVIEW,and the communication mode based on the TCP protocol is used for remote communication.The virtual instrument of LabVIEW can realize the shared communication function of the computer,thus realizing the important water.Monitoring of quality parameters and sharing of data.The main work of this article is as follows:(1)the design idea of the whole wireless water quality monitoring system is introduced,and the overall design ideas and basic principles of the system are introduced,and three aspects,such as the selection of sensors,the design of the hardware circuit and the development of the host computer software,are introduced in detail.(2)the multi-directional and multi style data analysis function provided by LabVIEM is introduced.And the functions of data collection,data acquisition,storage,storage,data playback,data processing and so on.The function is expanded and online interaction is realized.(3)select part of the water body,use this system to collect and detect the electrical conductivity and pH value,and use standard instrument to detect the same water body,and compare and analyze the data,to determine the reliability of the system.Ensure that the whole system can achieve data sharing between host computers and run smoothly.(4)at last,the article summarizes the shortcomings of the wireless water quality monitoring system,and puts forward the direction of follow-up work.