中文摘要：

针对现有混凝土生产监控系统精度不高、易受人为因素干扰等问题,提出内嵌硬件系统到智能仪表内部的方式来实现实时监控的功能。嵌入式系统采用STC89C54RD＋微控制器,通过RS232串口和Modbus规约与搅拌机电流表进行实时通讯,对仪表返回的数据进行存储和处理,对混凝土的生产过程进行严格精确的监控和管理。经搅拌站现场使用效果良好,有效减少了偷漏原材料和搅拌时间不到位的行为,从而提高了混凝土生产的产品质量和生产效率。

英文摘要：

Common monitoring systems of concrete production cannot reach the high accuracy demand and are vulnerable to human factors.According to these problems,it proposes to embed the real- time monitoring hardware into the intelligent instrument.The embedded system uses STC89C54 RD ＋ as the microcontroller,communicate to the concrete mixer ammeter with RS232 serial port and Modbus protocol.As a result,it saves and processes the data returned from the instrument,which can monitor and manage the whole concrete production strictly and precisely.The system has a good effect used in the mixing station,which decreases the leakage of raw materials and lack of mixing time,and furthermore improves the production efficiency,products quality and resources utilization.