现有的混凝土搅拌站在进行水泥和砂石计量时，其秤上的显示数值是由小到大变化的，此计量过程称之为加法计量。搅拌站的物料流向顺序为：料仓→秤斗→搅拌机。其计量过程为：计量初始时，秤的显示值为零，输入计量“开始”信号后，料仓门打开，物料落入秤斗中。秤的显示值随着 The existing concrete mixing plant in the cement and gravel measurement, the scales on the display value is small to large changes, this measurement process is called additive measurement. Mixing station material flow to the order: silo → hopper → mixer. The measurement process is: initial measurement, the scale shows the value is zero, enter the measurement “start” signal, the bin door open, the material falls into the scale bucket. The display of the scale follows