Research On Temperature Monitoring System For Geothermal Aquiculture

The whole world is in lack of energy sources with the rapid development of economic and society. To develop/ use reproducible energy sources and improve its utilization ratio has great importance to China's continuance development in economy. Geothermy as kind of rarity mineral reproducible energy sources has advantages of broad distribution / low cost / using directly / litter pollution to the environment and so on. And it has an abundant reserve. You can find it in each province/ city and municipality. Reply to the problems such as energy sources wasting and environmental pollution, using geothermal heat as the heat source, this study designs a set of micro-controller unit based on MCU (micro-controller unit). This system not only can reduce the use of other fuels demand in breeding, but also played a positive role in Energy conservation and environmental protection at the same time.This set of Monitoring System is at the core to MCU AT89C52, combined with inverter, relays, digital temperature sensors DS18B20, DAC and other devices, constitute a geothermal aquaculture temperature monitoring system together.Using the water temperature in aquaculture ponds as setting parameters, to realize that the regulation of water flow, thus achieving the pond water temperature in the closed-loop regulation according to water temperature deviations from set value based on the degree of control by the MCU motor speed.In this paper, through the application of geothermal to aquaculture process analysis and combined with temperature control theory and implementation process, raised the issue with the overall design programme and determined in the process of geothermal for farming. In the choice of control algorithms, we are combing the advantages in both fuzzy control and predictive control in the field of intelligent control, using fuzzy forecast control algorithms to overcome the impact such as the inertia of the system and time-delay. At the same time, MATLAB is on the use of tools to support the design of algorithms. In the end, Carried out a detailed introduction to the modular design of hardware and software monitoring system. In addition, the anti-jamming measures in this system have also been discussed in detail.Through the approximate test to the Controller and analysis, we find that the operation of that system is normal, the functional modules function can achieve viable, the temperature accuracy of data collected is higher which can meet the requirements of control. In a word, system control algorithms can achieve the established control process.Of course; in addition, because of this system has the advantage of simple, low-cost, it can also be applied to other similar water temperature control process after some minor appropriate modification. This greatly expanded the application scope of the system. And it has some practical significance in geothermal aquaculture applications.