标题：Intelligent Vacuum-pumping Detection Device Base On STM32MCU
作者：Gao, Zhengzhong; Zeng, Qingliang; Li, Shiguang
作者机构：[Gao, Zhengzhong; Zeng, Qingliang; Li, Shiguang] Shandong Univ Sci & Technicol, Qingdao, Shandong, Peoples R China.
会议名称：3rd International Conference on Digital Manufacturing and Automation (ICDMA 2012)
会议日期：AUG 01-02, 2012
来源：DIGITAL MANUFACTURING & AUTOMATION III, PTS 1 AND 2
关键词：water pump; vacuum-pumping; STM32F103; pressure detection; threshold; algorithm
摘要：Large centrifugal water pumps are widely applied in various water-supply and drainage systems. The vacuum-pumping is pre-requisite for their start-up so that the intelligent vacuum-pumping detection device utilizing STM32F103 as the main controller was presented to realize the automatic control especially of unattended pumps. A differential pressure transducer was adopted to measure the vacuum degree in pump chamber. Afterwards, an electrical signal of corresponding value was output, and then entered the ADC of STM32F103 after conditioning. The threshold algorithm was introduced for the judgement whether vacuum-pumping had been accomplished. Actual applications indicated this detection device was feasible and reliable, and the judgement algorithm was simply implemented and performed well in practice.