| Moreover, introduces the circuit principle combined with the circuit.In addition, the LCD screen’s determination and display matrix are alsointroduced in the paper.In the aspect of software design, complete the main program, thedisplay screen program design, data acquisition program design, keyboardscanning program design and alarm program design. And draw some flowcharts; the instruction of part of the program is also given.The respirator monitoring state system designed in this paper is simplefor use, low power consumption, fast running speed, further improves theperformance of respirator. The system is equipped with a color LCD display.Compared with the traditional display monitors, it is not only convenienceto take, but also has friendly interface. The CPU, LCD and other electroniccomponents is very cheap; so this design reduces the cost of respiratorgreatly. |
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