Design of Dynamic Check-weighting System for Bottled Medicine
Aiming at the problem of inaccurate and low efficiency of weight detection in the process of medicine pro-duction,a dynamic check-weighing system for bottled medicine is designed in order to realise real-time monitoring and management of the weight of bottled medicine.The overall framework of the system includes three modules,the check-weighing rejection module collects the weight signal through the load cell and processes it into the weight val-ue through the weighing instrument,the human-computer interaction module monitors the check-weighing data and sets the check-weighing parameters through the touch screen interface,and the executive control module realises the start-stop and speed control of all the motors in the system through the PLC.The system has been tested in operation,showing that the system always exhibits high check-weighing accuracy and low error within the speed range of 0.6 m/s～1.2 m/s.The detection accuracy of the system is±0.2 g,with a maximum average absolute error of 0.162 g and a maximum average relative error of 1.16％.
万方数据
维普
