| Accurate and timely meteorological information is the basis for the weather forecast; it is also the necessary mean for us to cope with various unexpected weather events. To obtain the meteorological information, the intelligent meteorogical system is widely used in the world. The intelligent meteorological system develops with the computer technology, the network communication technology and the sensor technology, and has the characteristics of automation, miniaturization and remote. Meteorological data acquisition is no longer dependent on artificial data acquisition. Nowadays the domestic intelligent meteorological system can basically meet the needs of the meteorological industry, but it has poor performance compared with the meteorological system made abroad. It is a long way to develop the meteorological monitoring system.To accoplish the optimization of the intelligent meteorological system, we have to work from two aspects. Firstly, we must improve the existing meteorological monitoring system. In the process of using the system, we can find some defects of the system. We must fix the design flaw. Secondly, we must redesign the sensors, including the sensors themselves and the sensor readout circuit. Sensors are the key part of the meteorological system and the readout circuit of the sensors determines the performance of the meteorological system. The main contents and innovations include:Firstly, the readout circuit of the pressure sensor is introduced. The readout circuit uses the chip ERSI1100 to get the signal of the sensor and converts the signal of the sensor into digital signal. The microcontroller, STM32 series, gets the signals of the ERSI1100 and shows the values to users in the computer’s screen.Secondly, the intelligent meteorological system designed in my laboratory is introduced briefly. The functions of the system, the hardware design and the software design are the three parts of the introduction. The functions of the system show how the intelligent meteorological system work and what it can offer. The hardware design shows the key hardware unit of the system, including the meteorological sensors, microcontroller, real-time clock and the power of the system. The software design shows the system architecture diagram and the functions of the terminal software and the user interface software. In a compreshensive analysis of the intelligent meteorological system, this paper points out the deficiencies of the existing system, and completed the optimization scheme to solve the concrete problems. Optimization of the system contains two parts, the terminal software optimization and the user interface software optimization. The terminal software is optimized through the redesign of the data upload task. The optimization solves the problem that the system cannot turn off all the hardware units. The user interface software is optimized through the redesign of the interface and reducing redundant functions. This beautifies the user interface. The user interface software is also optimized through increasing the fault tolerance design and some functions. This solves the problem that the user interface cannot handler the unexpected situations and makes the user interface much more convenient to use.Finally, the testing of the intelligent meteorological system is introduced, which includes hardware testing and software testing. Hardware testing tests the performance of each hardware unit. Software testing tests the software performance in the grey-box testing method. The grey-box testing is the bombination of white-box testing and black-box testing. The result of the testing shows that the intelligent meteorological system has a good performance.The research and development of the the optimization of the intelligent meteorological system solves the problems of the existing system and points out a novel readout circuit for air pressure sensor. It provides a reference method for upgrading the intelligent meteorological system and has the certain theory significance and use value. |
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