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为解决装配执行过程中物料流与信息流不同步的问题,用装配Agent封装装配任务和数据,用射频识别标签标识物料。通过对射频识别标签的读取来检查物料,并触发装配Agent的执行,实现装配现场的装配操作三维可视化引导和装配质量检验引导。装配完成时,借助装配Agent的回收机制返回现场数据。实例表明,该方法实现了物料与装配任务之间的动态匹配,增强了装配执行过程的动态监控能力。 相似文献
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为了克服无线射频识别技术在成本和读写距离等方面的不足,使其在物联制造环境中得以大规模应用,采用集成无线射频识别阅读器与传感器节点(IRRSN)的方法,以传感网的多跳通信方式与无线射频识别标签进行组网,有效地延长了无线射频识别信息的识读距离。提出一种基于自适应遗传算法的IRRSN优化配置方法,对网络中数据的传输方式进行优化,实现了IRRSN对标签的最大覆盖率并降低了网络成本。通过案例仿真对所提方法的有效性进行了分析和验证。 相似文献
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仓储管理是物流当中的一个重要环节.提出了一种基于超高频射频识别(RFID)技术的便携式仓储管理系统,介绍了相关硬件设备电子标签和读写器的组成、工作原理.该系统采用ARM7作为阅读器微控制器,采用无线局域网与管理服务器进行数据的实时传输.实验表明,这种系统能准确地读取标签,有效地对库存货物进行查询、盘库,具有广泛的应用前景. 相似文献
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为实现移动收费系统的射频识别和无线传输,采用低功耗且具有丰富外围接口的嵌入式处理器S3C2410A,完成了移动收费系统的硬件设计,设计了以AT88RF256—12为核心的射频识别电路,改进了数据传输电路的设计,提出了基于FALCOMC2D的数据传输方法,实现了数据的无线传输。试验表明,该系统能准确识别标签信息和传输标签信息。 相似文献
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《计算机集成制造系统》2014,(1)
为探讨—对多供应链企业投资无线射频识别技术决策问题,以单生产商和两零售商组成的两级供应链为研究对象,考虑零售店内商品错放对最优订货量的影响,采用逻辑证明和数值分析的方法,分别建立了分散式决策和集中式决策供应链的收益模型,剖析了商品错放率对链上成员定价的影响。分析了无线射频识别技术消除商品错放对供应链收益的影响,结果表明分散式和集中式供应链可承担的无线射频识别标签的单位成本阈值相同。进一步设计了数量折扣—两部定价契约,实现了分散式决策供应链投资无线射频识别技术的协调,并发现单独的数量折扣合同不能实现供应链的协调。通过算例验证了结论。 相似文献
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Misty D. Mills-Harris Ahmet Soylemezoglu Can Saygin 《The International Journal of Advanced Manufacturing Technology》2007,32(9-10):1045-1051
In this paper, inventory management of time-sensitive materials using RFID data is studied using simulation. Based on the production data obtained from a manufacturing company, three inventory management models that rely on RFID data for tracking and dispatching of time-sensitive materials on a shop floor is presented. The complexity of the models ranges from statically-set, fixed baseline inventory models to dynamic, forecast-integrated inventory control schemes. This study compares the inventory models on the basis of service level, cost, inventory and waste reduction, and decision-making complexity. A comparative analysis of the models is presented in a simulation environment, which also demonstrates the overall benefits and effectiveness of RFID technologies in providing low-cost manufacturing solutions, reduced inventory levels, and lower overall waste. The forecast-integrated inventory model is developed based on a trend-adjusted exponential smoothing algorithm, with two smoothing parameters, α and β, used as coefficients for the average production demand and its trend, respectively. The study shows that the desired level of system performance can be achieved by adjusting the values of the smoothing parameters. 相似文献
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采用无线传感网络ZigBee的树型组网方式代替传统的RFID网络系统,不仅能降低RFID系统的成本,而且能使RIFD组网更加灵活,省去了传统RFID系统繁琐的布线,提高了系统实用性和可靠性。系统由管理服务器、网关节点、路由节点、RFID终端节点组成。采用低成本通信芯片CC2430和FM1702SL组成RFID终端节点,具有体积小、低成本、低功耗等特点,适合使用在识别距离比较短,数据传输比较远,网络比较繁杂应用场合,系统具有较强的实用性和灵活性。 相似文献
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物流系统中原始数据的采集对企业信息化建设非常重要,而RFID能满足制造企业关于原始数据的需求。将RFID技术应用到制造企业物流之中,利用VisualBasic实现了仓储管理系统,加强了物资的追踪和定位。该系统通过RFID读写器实现了对电子标签的读写;采用接口函数得到系统采集到的射频数据;通过ADO技术,实现物品信息、仓库信息、操作记录的自动存储、更新和查询等功能。系统的成功研制为RFID在制造企业的应用提供了借鉴。 相似文献
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Chiun-Ming Liu L. S. Chen R. M. Romanowski 《The International Journal of Advanced Manufacturing Technology》2009,42(3-4):348-362
Efficiency and accuracy are the two main factors that the integrated-circuit (IC) assembly industry must emphasize in order to develop competence. An IC assembly house must keep track of all its wafers, regardless of whether those wafers are in assembly, testing, or shipping; the house must be able to provide clients with instant and accurate information on its products and services. Radio frequency identification (RFID) can collect and alter IC assembly house data electronically. In this study, RFID technology is combined with a RosettaNet network and an enterprise resource planning (ERP) system; these elements are applied to resolve various wafer-receiving and inventory transaction problems. An electronic material flow control system is developed using Oracle application implementation methodology (AIM) to integrate RFID technology, the RosettaNet network, and the ERP system. This electronic material flow control system has been implemented at a local IC assembly company. Results from this study suggest that RFID contributes significant improvements to the wafer-receiving process and the inventory transaction process that reduce labor costs and man-made errors. Besides that, our material flow control system greatly reduces operators’ workloads and operation costs. 相似文献
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M. Keskilammi L. Sydänheimo M. Kivikoski 《The International Journal of Advanced Manufacturing Technology》2003,21(10-11):769-774
Identification plays an important role in automation. In the near future radio frequency identification (RFID) will be an option for mass production automation projects. RFID represents a contactless method for data transfer in object identification. Generally, RFID systems consists of three components: 1. A small electronic data carrying device called a transponder, or a tag that is attached to the item to be identified. 2. A reader or a scanner that communicates with the tag by using radio frequency signals. 3. A host data processing system that contains information on the identified item and distributes information to other remote data processing systems. An RFID system can be considered as a wireless communication system because the scanner communicates with the tag by using electromagnetic waves at radio frequencies. The performance of this communication link can be studied by determining the read range for backscatter RFID systems. The read range, or the distance at which the reader unit notices the tag, depends on many factors. Several parameters, e.g. the frequency used for identification, the gain, the orientation and the polarisation of the reader antenna and the transponder antenna, and the placement of the tag on the object to be identified, will all have an impact on the RFID system read range. In this paper, Part 1, we focus on presenting an overview of different passive RFID systems and the read range of the backscatter RFID system. The function of frequency, antenna gain and polarisation mismatch are analysed and discussed. In Part 2, several manufacturing automation cases of different natures will be presented. These cases contain a selection of requirements for an RFID system and they are analysed using the information presented in this paper. 相似文献
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为了加快工业生产中对数据信息的采集与处理,该文设计了一个运用欧姆龙CJ1W-SCU22模块与RFID设备通信的数据处理系统,兼顾采集、处理、存储等过程,通过该串行通信模块上的RS-232端口采用无协议通信方式与RFID设备进行数据的交换。主设备为NJ控制器,从设备为RFID读卡设备,主设备向从设备发送命令帧,从设备向主设备返回响应帧,数据转换为用户需要的字符型数据。同时上位机程序CX-Supervisor实时接收处理完的数据,并存储到ACCESS数据库中。 相似文献
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基于MF-RC500的通用射频卡读写模块的设计 总被引:9,自引:0,他引:9
介绍基于MF—RC500芯片的通用射频卡读/写模块的设计和实现。该读/写模块具有和应用系统的多种通信接口方式,包括二线制通信模式;模块设计有用户高级读写指令,极大地简化了应用系统对射频卡的操作;应用系统和模块的通信基于二次握手的通信协议,保证了通信的稳定和可靠。 相似文献
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针对工业环境中需要实时检测温湿度的问题,提出无线射频温湿度测量系统的设计方案。详细阐述了系统的设计思想、硬件结构和软件的设计方法。系统采用C8051F020作为基础,并结合nRF2401射频芯片以及温湿度传感器SHT21S,可以定时采集和存储外部温度湿度数据,能够通过无线射频识别通信上传数据并对其进行相应的分析和处理。该系统具有较高的实用性和可靠性,成本低,功耗低,具有良好的应用前景。 相似文献