Abstract
This paper focuses on the design and implementation of the detection device. This paper discusses that the control unit realizes the stepping drive by the interrupt method, realizes the force acquisition and the Modbus RTU communication by the polling method, designs the main program, the force acquisition subroutine flow, the stepping driver subroutine flow, and the Modbus slave subroutine flow, and realizes it through the Arduino IDE programming. Design the host computer interface, database association and command language programming; At last, the application effect of the test system is verified by the tensile test of water shield stem of taihu lake.
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