Based On The Msp430 Integrated Environmental Monitoring System Facility Cultivation

The graduation design mainly design facilities cultivation comprehensive environmental monitoring system which based on low power consumption MCU MSP430F449, including hardware design and software design. With China's actual conditions,We adopt facilities cultivation comprehensive environmental monitoring technology, mesh the sensing technology, detection technology and computer technology, the design of green intelligent facilities cultivation comprehensive environmental monitoring system detect the facilities cultivation environment's light, temperature and carbon dioxide parameters, guarantee crops grow in the optimal production environment, guaranteed quality and forecast change trend.early do protective measures. Light, temperature, carbon dioxide parameters have significant influence on crop growth. Therefore, testing facilities cultivation environment correctly and effectively has the extremely vital significance.Facilities cultivation environment monitoring system mainly consists of data acquisition, data processing, the keyboard and the LCD display four parts. Data acquisition mainly consists of light, temperature, carbon dioxide sensor and signal regulating circuit. Silicon light sensor's short-circuit current converts voltage to input to the P6.0 port of MSP430F449, the corresponding temperature sensor collect temperature data to input to the P6.1 port of MSP430F449, of carbon dioxide sensor collect carbon dioxide concentrations to input to the P6.2 port of MSP430F449. MSP430F449MCU converts the analog voltage signal to digital voltage signal through the ADC,data through operation processing be stored to the nonvolatile storage, data will not lose when system power lost.The keyboard part adopts array type keyboard, display is using LCD screen, button completed work patterns, acquisition cycle and adjustment of real-time clock, LCD display screen's first row timeshare cyclic display the parameter value of acquisition, the fourth row display the date time,it display interface intuitive, readable and user-friendly.Single-chip program uses C language, the compiler uses IAR Embedded Workbench 4.0, which owns a whole set of embedded development environment, including editing, compiling, connectivity, debug the software. Good software can optimize the process of information processing and improve accuracy.The system owns automation, high reliability, low-power and convenient etc advantages. Low-power measurement and the high accuracy measurement both can be achieved.