| With the development of factory aquaculture in China, as an important character of modern aquiculture, the monitoring of environmental factors has gained more and more attentions. Aiming at the actuality that automation technology is exactly need in aquaculture factory of Hainan Province, a kind of environmental factors monitoring system is designed in this dissertation to fit the needs of Hainan Province’s aquaculture factory, which can on line measure three main environmental factors, And the paper mainly discusses the online monitoring of pH.First of all, this paper put forward the whole devise project after the analyze of latest research all over the world and the structure introduction of the environment in aquaculture. In the system, the main monitoring objects is pH, temperature and dissolved oxygen.The system regards C language as the main developing instrument,and also uses Visual Basic,etc.The system is scientific,reliable.The system adopts the structure of superior/below position operator. The below position operator system design is divided into two parts, hardware part and software part.On the hardware part,A/D converter module, LCD module, alarm function module, communication module, are designed around the Microprocessor, AT89C51. On the software part, data sampling module, data real time display module are designed. Above position operator software programs by Visual Basic.Software has friendly interface, convenient operation,complete function.PC can be real-time data acquisition, storage.Also may can carry on display to the historical data, handle and print again, provide science for the researcher basis.This system achieved the function of the automatic collection of aquaculture environmental factors and the real-time data transmission and processing. It has a high real time work ability and a high automation degree, it’s cost was low, so it can adapt the request of modern inspect of environment. This system has certain actual meanings in the factory aquaculture. |
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