Household Fish Tank Water Temperature&Dissolved Oxygen Monitor Based On GPRS

We design and build a water temperature and dissolved oxygen monitor ofornamental fish tanks based on the development GPRS technology and the8051series MCU technology to fufil the practical demands. In the system, a micro controlunit (MCU) is used as the microcontrol unit, and combine with the aquariumenvironment detector, sends messages to the server when an abnormality isdetected.In the essay the system framwork, hardware circuit diagram and program blockdiagram are presented. The hardware system consists of data acquistion module,display module, power supply module, electric relay module, MCU and GPRSmodule. The software includs a display program, a A/D conversion program, aEEPROM program, a keyboard test program and a GPRS program.The monitor is sucessfully manufactured with manual welding and PCB weldinginto two sets of products. The circuit schematic diagram and photos of PCB boardand final products are presented in the essay.