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《工业技术创新》2015,(1)
为有效解决弹光调制(Photoelastic Modulation)傅里叶变换光谱仪数据量大,调制干涉信号频率高,所需采集速度高的问题,提出了一种基于FPGA和模数转换器件AD9224相结合的高速数据采集方案。该方案在分析AD数据采集工作模式的基础上,在Xilinx ISE 12.4的开发环境中,利用Verilog硬件描述语言编程,对数据的高速采集进行了设计输入和仿真验证,实现了AD9224在FPGA控制下的高速信号采集,采集速度为40M,通过设计采集存储控制板实现了硬件测试,验证了该设计的可行性和准确性,实现了弹光调制傅里叶变换光谱仪高速数据采集,数据的快速传输与上位机显示。 相似文献
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塑料包装机应用微机技术,其中,温度检测与控制在包装工序中起着重要的作用.如塑料制袋机中的三边热封、印刷机与复合机的加热烘干等,路数由几路到数十路不等.DBG-CT型温度变送控制处理器和小型镍铬-镍硅热电偶配合联用,在包装机温度检测控制中的应用是成功的.它利用热电偶采集温度信号,用AD590作热电偶冷端补偿,二者叠加的信号送至处理器放大.由于热电偶输出信号与被测温度之间的关系为:E=f(t,t0)是非线性关系.为此,该处理器增设了线性化处理功能.线性化后的模拟电压信号经V-F转换成数字频率信号,送往8位单片机,由单片机进行PID运算后从I/O口输出,再经过标准RS232接口供给上位计算机系统或其它仪表.处理器带有比例控制输出、开关接点输出,具有体积小、工作稳定、安装方便等特点. 相似文献
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针对卷烟透明包装材料上的拉线可能发生破损、偏移等缺陷的问题,设计一体化视觉拉线检测系统.从硬件和软件两方面提出检测系统总体设计方案.硬件上,控制接口板通过单片机集成两路图像采集组件通信接口、两路光源控制电路和一路对外通信接口,实现与工控板的通信和拉线图像采集等功能.软件上,工控板作为上位机,负责人机界面显示和图像处理;... 相似文献
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介绍了基于Vx Works系统的多个快速以太网PCI控制器驱动的编程方法,给出了硬件框图和程序流程图,并说明了该驱动与上层程序的接口。 相似文献
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泰山钢铁集团有限公司制氧厂采用日本横河电机CS3000型DCS,现场一次测量设备将采集的信号送入相应输入I/O卡件,再经通信网络传送到中央处理器进行数据处理。处理后信号一路送至操作站进行监视和操作,一路通过输出I/O卡件传输至现场对生产过程实施控制,使各项生产指标满足工艺要求, 相似文献
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电力增长模式长期没有得到根本转变的一个重要原因是交易成本过大。电力应该与社会协调发展,这需要从不同的理论视角来探讨。社会资本为人们解释经济增长、社会发展的新范式和解决社会矛盾提供了新思路。电力发展不仅需要自然资本、经济资本、人力资本,还需要社会资本。社会资本是构建和谐社会不可缺少的要素。只有实现电力与社会的协调发展,电力发展才能获得持续的政治支持。 相似文献
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Organizations have cultural-cognitive and regulative as well as normative elements that impact their employees. Organizations, by definition, cannot achieve a pure, stable state and always go through various change processes, both incremental and radical changes. Moving from legacy business-to-business (B2B) relationship management to an artificial intelligence-based customer relationship management (AI-CRM) is a gradual but paradigm change. AI-CRM leverages intelligent systems to automate the B2B relationship activities where the decision can be taken automatically without any human intervention. Relationship management in the B2B segment is considered a strategic activity of an organization. Moving from legacy to AI-CRM to facilitate B2B relationship management activities is an important decision, and proper implementation of AI-CRM is a critical success parameter for an organization. This study combines institutional theory and the resource-based view (RBV) in B2B relationship management to understand how AI-CRM could impact the firm's performance with varied firm size, firm age, and industry type. 相似文献
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为了搞清七个泉油田一区块七4—7注水井组油水井连通情况,找出井间存在的大孔道或高渗层,弄清油藏平面与纵向上的非均质性及剩余油分布情况,2003年9月在该井组进行同位素示踪剂井间监测。监测的方法是在水井中注入一种水溶性示踪剂,在周围监测井中取水样,分析水样中示踪刑的浓度,应用示踪剂软件解释技术进行分析。监测结果表明:注入水的方向性较明显,主要驱向七5—8等5口井,水推速度整体较均衡,注水控制效果较好,七4—7水井与七4—6、七5-6井井间储层物性较差,监测井之间的层内非均质程度较大。 相似文献
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分析了电力适度超前发展作为我国电力工业发展基本方针的现实意义,从电力法制建设、电力发展规划、电价机制、电力工业占全社会固定资产投资比重、人力资源、科技创新、生产和供应能力等方面对我国电力是否适度超前发展进行了评价,得出长期以来我国电力电量相对于国民经济发展处于相对滞后和波动性短缺的结论,提出了相关建议。 相似文献
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本文主要研讨可编程器件FPGA做PCI总线从模块设计。文中分析可编程器件在PCI总线产品设计中的可行性和应用前景以及PCI总线从模块接口电路的结构,提出子电路模块的具体实现方案。 相似文献
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Martin Pehnt Hinrich Helms Udo Lambrecht David Dallinger Martin Wietschel Heidi Heinrichs Robert Kohrs Jochen Link Stefan Trommer Thomas Pollok Petra Behrens 《能源经济杂志》2011,35(3):221-234
The German Federal Government wants to establish Germany as a leading market for electric mobility. Potential environmental benefits and changes in the economic framework conditions of the energy sector are described in this paper. In order to quantify the electricity split which is actually used for charging electric vehicles, two economic models for the energy sector, a model for the market penetration of electric vehicles, a vehicle model and an LCA model are brought together. Based on an assumed dynamic increase of electric vehicles to 12 million in 2030, an additional electricity demand of about 18 TWh is calculated. If the vehicles are charged directly after their last daily trip, the peak load increases by 12%—despite the small increase in electricity demand. First model calculations for the development of the European power generation system show that the direct impact on the construction of new power plants remains low even until 2030. An impact of electric mobility on CO2 certificate prices can only be seen from 2025 onwards and is limited to an increase in certificate prices by a maximum of 8 % in 2030. An optimisation is possible with intelligent charging strategies: The peak load without demand side management can be reduced by 5 GW and about 600 GWh of additional wind energy can used which would otherwise have been throttled due to feed-in management—about 3.5 % of the total electricity demand of electric vehicles. On the other hand, demand side management leads to more coal power plants instead of gas power plants being used to meet the additional electricity demand. If additional renewable sources are installed along with demand side management, the electricity for electric vehicles is almost carbon free. This is also reflected in the life cycle balance of electric vehicles which also includes vehicle and battery production: With today’s average electricity split in Germany, the greenhouse gas emissions of electric vehicles are about comparable to vehicles with conventional combustion engines. However, the electricity split in 2030 or the use of additional renewable energy sources lead to a significant advantage in the greenhouse gas balance. 相似文献
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During stable times, firms will generally aim to create reliable B2B relationships that provide increased efficiency and profitability. However, tumultuous times, such as the time during a major pandemic, cause many significant disruptions in both internal and external environmental domains. Thus, we argue that it is critical during this time to reevaluate the company's business relationships as a whole. While long-term partnerships are great for handling incremental changes during stable times, disruptive environmental changes may require managers to consider disruptive changes to their businesses. A pandemic may also present opportunities for establishing new relationships as there may be other partners/suppliers who are better equipped to help the company address urgent short-term needs and to capitalize on significant long-term opportunities. In this paper, we design a new relationship audit template to help B2B firms weather the immediate crisis at hand and position themselves more strategically for the future. We explore this idea in relation to the coronavirus outbreak, introduce the idea of a B2B crisis relationship audit, and offer potential steps forward for firms. 相似文献