Research on aggregate weighing system of stabilized soil mixing station based on STM32 embedded single chip microcomputer

In highway construction, stabilized soil mixing station occupies an important position and is the key equipment for mixing stabilized soil. Its weighing accuracy and batching accuracy directly determine the quality of finished materials. In this paper, the weighing system of stabilized soil aggregate is designed and analyzed. The hardware part includes embedded single chip microcomputer, weighing sensor, speed sensor, LCD screen, power supply and weighing body. The software part includes driver, data processing program, calculation program and system management program. This design takes STM32F107 embedded single-chip microcomputer as the core, and is equipped with corresponding peripheral chip circuits and electronic components. In this design, three filtering algorithms are compared, and the filter based on Kalman filter is selected. By using STM32F107 embedded single-chip microcomputer as the core, the hardware and software of aggregate weighing system in stabilized soil mixing station are designed. Progress has been made in measurement accuracy, filtering algorithm, system management reliability and system stability