6 March 2015 Design of extensible meteorological data acquisition system based on FPGA
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Proceedings Volume 9446, Ninth International Symposium on Precision Engineering Measurement and Instrumentation; 944612 (2015) https://doi.org/10.1117/12.2180716
Event: International Symposium on Precision Engineering Measurement and Instrumentation, 2014, Changsha/Zhangjiajie, China
Abstract
In order to compensate the tropospheric refraction error generated in the process of satellite navigation and positioning. Temperature, humidity and air pressure had to be used in concerned models to calculate the value of this error. While FPGA XC6SLX16 was used as the core processor, the integrated silicon pressure sensor MPX4115A and digital temperature-humidity sensor SHT75 are used as the basic meteorological parameter detection devices. The core processer was used to control the real-time sampling of ADC AD7608 and to acquire the serial output data of SHT75. The data was stored in the BRAM of XC6SLX16 and used to generate standard meteorological parameters in NEMA format. The whole design was based on Altium hardware platform and ISE software platform. The system was described in the VHDL language and schematic diagram to realize the correct detection of temperature, humidity, air pressure. The 8-channel synchronous sampling characteristics of AD7608 and programmable external resources of FPGA laid the foundation for the increasing of analog or digital meteorological element signal. The designed meteorological data acquisition system featured low cost, high performance, multiple expansions.
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Wen Zhang, Wen Zhang, Yin-hua Liu, Yin-hua Liu, Hui-jun Zhang, Hui-jun Zhang, Xiao-hui Li, Xiao-hui Li, } "Design of extensible meteorological data acquisition system based on FPGA", Proc. SPIE 9446, Ninth International Symposium on Precision Engineering Measurement and Instrumentation, 944612 (6 March 2015); doi: 10.1117/12.2180716; https://doi.org/10.1117/12.2180716
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