基于Linux的车载气调保鲜运输控制系统!  

Control System for Fresh-keeping Transportation Truck with Controlled Atmosphere Based on Linux

作　　者：周晓龙[1] 吕恩利[1] 陆华忠[1] 张明帮[1] 岑康华[1] 

机构地区：[1]华南农业大学工程学院,广州510642

出　　处：《农业机械学报》2013年第S2期155-160,共6页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家自然科学基金资助项目(31101363);广东省自然科学基金资助项目(S2012010010388);广东省科技计划资助项目(2012B020313007;2011B020312003)

摘　　要：以液氮充注气调保鲜运输车为设计平台,开发了以ARM11系列S3C6410微处理器为核心的控制系统。该系统基于Linux操作系统,使用C语言和Qt界面语言编程,采集厢体内温度、相对湿度、氧气体积分数等保鲜参数,并控制制冷、加湿、气调、换气等执行设备工作。控制系统采用变风量通风系统,建立了果蔬参数数据库,并将运行过程中采集到的数据存储在NAND Flash中,实现了运输车厢环境信息的可追溯。试验表明:该系统能够准确地采集到车厢内各保鲜参数的变化,并能根据处理结果实时、精准的控制相应的执行机构。Taking liquid nitrogen filling in fresh-keeping transportation truck with controlled atmosphere for fruits and vegetables as design platform,a kind of control system regarded ARM11 series of S3C6410 microprocessor as the core was developed.In the Linux operating system environment,the system used C language and Qt interface designing language to the temperature,relative humidity,oxygen concentration sensor and actuator signal,such as refrigeration equipment,humidifying equipment,the gas adjustment equipment,ventilation equipment and so on.In the proposed system,a kind of variable air volume ventilation system was designed and a type of fruits and vegetables' fresh-keeping parameters database was established,meanwhile,the collected data in the process of running would be stored in NAND Flash,so that user could read it in real-time and export it after the test.Test showed that the system could correctly collect the fresh-keeping parameters of fruits and vegetables in the truck,and according to the processing results,it could accurately control the corresponding actuators in time.The design and experiment provided a reference for the design of fresh-keeping transportation truck with controlled atmosphere for fruits and vegetables.

关 键 词：气调保鲜运输车 ARM 控制系统 

分 类 号：U469.66[机械工程—车辆工程]