农产品安全追溯系统的云计算技术性能提升设计  

Performance improving design on cloud computing for agricultural products safety traceability system

作　　者：陈联诚[1] 胡月明[1] 张飞扬[1] 段文杰[1] 余平祥[1] 

机构地区：[1]华南农业大学信息学院,广州510642

出　　处：《农业工程学报》2013年第24期268-274,共7页Transactions of the Chinese Society of Agricultural Engineering

基　　金：广东省农村信息化建设专项资金项目(201210112600794);广东省教育部产学研结合项目(2012B091100110);广东省教育部产学研结合项目(2011B090400547);广东省科技厅专业镇中小微企业公共服务平台建设(2012B040500060);广东省科技厅专业镇中小微企业服务平台建设(2012B040500015)

摘　　要：农业生产及环境的信息采集是农业信息系统的重要环节,无线传感器网络以它的低成本、无线传输等优势广泛应用于农产品安全追溯的信息采集中。由于无线传感器网络长年不间断信息采集的积累,数据库的大信息量及网站用户高访问量将对网站服务器造成高负载的压力,这将导致网站的响应速度大大降低。采用高存储、高负载处理性能云计算计算技术,能提高网站访问的响应速度,提高网站的访问性能。该文设计了基于私有云的农产品安全追溯网站,研究了Hill-Climbing搜索算法优化云平台配置及MapReduce对大数据的并行计算,提高了私有云上的农产品安全追溯系统的性能。通过将网站系统迁移至私有云的前后的比较试验,说明将网站系统迁移至私有云后各方面性能得到较大提升,网站访问响应速度提高了33%。Information collection of the production, supply and marketing chain in agriculture is an absolutely necessary part in the driving process of construction of agricultural informationization. As a new technique in collecting information, and relying on its low cost, low power consumption and wireless transmission, a Wireless Sensor Network （WSN） has already permeated into the agriculture area. For an agricultural information system which employs a wireless sensor as its collection terminal, there is no doubt that the uninterrupted process for information collection, transmission, and storage, as well as inquiries from a large number of users, puts so much pressure on the system server, resulting in a low speed for web access and inquiry. The response time and response rate when visiting a web site are key points of a web site’s performance. A supporting platform that has the capacity of mass storage and dealing with high concurrency traffic, therefore, is necessary for a Safety Tracing System for Agricultural Products. A cloud computing platform has an ability of cooperative working with multiple servers, and is able to share the load pressure caused by dealing with mass storage and high concurrency traffic. Following the agricultural Internet of Things, it is necessary to introduce a cloud computing platform to agriculture. The research group has undertaken 13 projects assigned from Science and Technology Department of Guangdong along with Economy and Information Commission in the past two years, including breeding safety, tracing, and electronic business for agricultural products. In order to meet the demand from the Economy and Information Commission, different platforms will be combined into one-Safety Tracing and Trade Platform for Agricultural Products. Recently, the research team has paid attention to setting up the Safety Tracing Platform on the basis of the breeding Internet of Things, dealing with some agricultural products like chickens, rabbits, fish, flocks, and herds. As a result of there being

关 键 词：设计 农产品 网站 云计算 追溯 水产品 负载均衡 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]