国产欧美精品一区二区,中文字幕专区在线亚洲,国产精品美女网站在线观看,艾秋果冻传媒2021精品,在线免费一区二区,久久久久久青草大香综合精品,日韩美aaa特级毛片,欧美成人精品午夜免费影视

In order to real-time monitor pressure of coal seam and save data, this paper designed a embedded coal seam pressure monitoring system based on STM32F103ZET6.Using the pressure sensor and 18 bit AD converter FS511 completes coal seam pressure acquisition and converted into digital signal, using the digital switch CD4051 completes channel conversion, with real-time operating system μC/OS - II as software platform to process data pressure, pressure data and curves are shown with the help of a graphical user interface μC/GUI, to save data in the SD card in the form of files is with the help of FATfs file system which is advantageous for the PC to read.Data is transmitted to PC throuth CAN bus which can rich system function.The test results show that the accuracy of coal seam pressure monitoring system reached 0.01%.This system has high precision, good real-time, meeting the needs of the mine pressure laboratory.