基于二维条码和ARM的谷物溯源采集传输系统

摘要：谷物在生产供应链中按照等级和用途进行混合配送和分销，多源头性决定了谷物追溯系统中信息识别的难点。针对这个问题，该文提出以表面喷印二维条码的追溯颗粒作为谷物追溯信息的载体。基于嵌入式系统开发了二维条码、GPS定位信息和谷物产地环境信息采集终端，终端采集到的数据通过GPRS网络传输。系统实现了谷物标示信息及产地环境信息（温度、湿度、光照、二氧化碳）的自动采集和传输，可作为快速、低成本的谷物追溯系统，为确保谷物质量与安全生产提供一种有效手段。

Acquisition and transmission system for grain traceability based on two-dimensional barcode and ARM

Grains of different origins are mixed throughout the supply chain according to their grades and usage, which brings great challenge in information identification for grain traceability system. This paper presented a method to use two-dimensional barcodes printed on the surface of a grain tracer as the information carrier. An embedded system based on ARM technology to retrieve the information in 2D barcodes and obtain the GPS and environmental information for grain field was developed, and the acquisition information transmitted though GPRS network. The system realized automatic collection and wireless transmission of grain identification, grain field condition information (atmosphere temperature, atmosphere relative humidity, luminosity and CO2). The system can provide an effective means for fast, low-cost tracking of grains to harvest field to guarantee product safety and quality for the grain industry.