粮食仓储是一项关系国计民生、具有战略意义的特殊工作.为了减少粮食储藏过程中的损失,保障粮食的品质和质量,需要及时准确地掌握粮食储藏过程中各种物理量的变化情况,找出其变化规律.设计并实现一套无线网络传输技术、传感器技术和计算机技术相结合的粮情监测系统,选用LPC938及IA4421低功耗芯片,使系统具有低成本、低功耗的特点,实用价值高,是现有粮情监测系统的理想升级换代产品.%Grain storage is of strategic significance for being beneficial to people's livelihood. In order to reduce the loss in the grain storage process and ensure food quality, it is necessary to timely and accurately grasp all kinds of physical quantity changes during the grain storage process and find out their conversion rules. The paper designs and implements a package of granary monitoring system by integrating the wireless network transmission technology, the sensory technology and the computer technology together. It takes advantage of low power-consuming chips such as LPC938 and IA4421 to grant the system with low cost and low power consumption features. It is of high practicality which makes it a desirable substation for present granary monitoring systems.
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