基于RFID智能停车场收费管理系统设计与实现

为提高停车场的经济效益和运行效率,实现自动化、智能化的管理,结合“防疫无接触管理”的趋势要求设计了一种基于RFID智能停车场收费管理系统。本系统设计主要以STC89C52单片机为控制核心,RC522无线射频模块、红外避障传感器模块、电源模块、蜂鸣器模块等硬件设计完成车辆的自动进出及交互功能,结合上位机,12864液晶模块及按键模块实现车辆信息查询及收费功能。结果表明,系统实际运行可满足无接触管理要求,实现了停车场的自动化管理。     

一种新的计算浮顶油罐蒸发损耗方法

针对浮顶油罐的油品蒸发损耗计算问题,提出了一种新的计算方法,通过实例计算分析,与传统的计算方法相比较,新的计算方法更科学,为油库的设计与管理提供理论依据。在此基础上提出了新的降耗方案,得到相应的结论。     

浮顶油罐蒸发损耗计算新方法

针对浮顶油罐的油品蒸发损耗计算问题,提出了一种新型的计算方法,通过实例计算分析,与传统的计算方法相比较,新的计算方法更科学,为油库的设计与管理提供理论依据。在此基础上提出了新的降耗方案,得到相应的结论。     

基于LabVIEW和RFID技术的智能停车场管理系统

随着人们生活水平的提高,城市汽车数量激增,为提升停车场的停车效率和服务质量,必须引入新的停车场管理系统。本文设计了基于LabVIEW和RFID技术的智能停车场管理系统,该系统以虚拟仪器(LabVIEW)作为载体,结合射频识别技术(RFID)对停车场进行管理。     

地下停车场的安全疏散模拟分析及防火设计

地下停车场作为一种设置于地下的设施,虽然方便车辆的停放,但是其安全隐患却不能忽视。其中,发生事故以后的安全疏散以及相关的防火设计体现地下停车场的安全意识。本文从地下停车场火灾的危险性作为主要的切入点,分析地下停车场的安全疏散模拟以及防火设计的思路,希望能给业界带来借鉴的经验。     

制造业信息化，要PDM还是要PLM？

PDM是一种管理产品设计数据的应用技术,而PLM是一种以流程为中心的战略性方法。哪种方案更适合您的企业,鱼与熊掌能否兼得？本文将为您答疑解惑。     

乙烯冷能利用方案设计

某厂EO装置和CO2装置需运行冷冻机组为装置提供冷量。低温乙烯作为下游原料时,需用蒸汽加热气化,为充分利用乙烯冷能,达到节能降耗的目的,现对其工艺流程进行方案优化设计。本文设计两种方案,分别对这两种方案进行了分析和比较,在保证充分利用能源的情况下,方案一更具有操作可行性和稳定性。     

简述电线挤压试验机的优化方案

本文针对电线测试领域中的电线挤压测试设备,提供了一种优化方案,可自动测试电线的耐挤压性能,且安全可靠,测试结果更准确。     

工业园区环保管家服务模式的思考

“环保管家”是在传统的第三方环保管理服务上一种再次升级,能够为工业园区提供更专业,更符合要求的服务。本文先对工业园区环保管理的现状进行了分析,并结合现状,讨论了环保管家能够为工业园区提供的主要服务内容和制约因素。     

智慧社区的发展及探索

随着物联网、网络通讯技术的快速发展,智慧社区作为一种新形势下社会管理创新模式不断涌现。在智慧社区中充分借助物联网、网络通讯、云计算、大数据等新兴技术,为居民提供一个更安全、更便捷、更智能的社区生活环境,从而形成一种基于信息化、智能化为基础的新型现代化社区。     

旋转式环形立体车库的电控系统设计

为了解决生活中汽车数量多、停车难的问题,在综合对比分析各类机械立体车库的优缺点等因素后,采用旋转式环形立体车库来解决此类问题。首先对立体车库模型总体结构方案进行了分析设计,选择采用STC89C52单片机为系统控制芯片,着重对电控系统中的升降设备、横移设备、旋转台设备进行了研究。在系统模型硬件具体设计中,选用限位开关、TCRT5000传感器等模块作为检测部件,选用28BYJ-48步进电机、SG90舵机等电机对该系统中的机械设备进行驱动。本设计还对车库系统平层存取车路径优化算法进行了研究,实现了平层最短路径存取车辆。通过最后的模拟仿真及模型实物运行结果可以看出本方案对提高立体车库运营的智能化、稳定性,以及对有效缓解城市停车难问题具有借鉴意义。     

Thermal effect on surrounding combustibles in minivan passenger car fires

In the fire safety design of parking lots and buildings, estimating the possibility of fire spreading to surrounding combustibles, such as neighboring buildings and cars, is essential. The ignition possibility to surrounding combustibles can be predicted from the heat flux from a burning car to the combustibles. In this study, we conducted 2 full‐scale car fire experiments using minivan passenger cars and measured the heat fluxes to their surroundings. The cars were ignited at the rear bumper with 80 g of alcohol gel fuel. The windows were closed. Heat flux gauges were placed around the car to measure the heat flux in various directions. Cedar boards were placed next to the gauges, and burn damage to the boards was observed. When the windows shattered in succession, combustion in the passenger compartment became larger. At a distance of 50 cm from the burning car, the heat flux was greater than 40 kW/m², and most of the cedar boards were completely burned. At a distance of 1 m, the heat flux was 10 to 20 kW/m², and some of the cedar boards were burned. We devised a method for modeling the shape and temperature of flames in the burning cars. Furthermore, we propose a method for calculating heat fluxes in the lateral direction of the burning minivan passenger car, and we compared the calculated and measured heat fluxes as a means of verifying the proposed method. The shape of flame in the burning car was approximated as a rectangular prism to calculate the heat flux. The calculation results were in good agreement with the experimental results. The proposed method is expected to be useful for fire safety engineering.     

无极绳绞车监控保护装置研究

为了实现轨道运输安全管理,解决斜巷运输中同时行车行人的问题,杜绝运输事故,绳绞车上安装监控系统的思路,研究制定技术方案,并介绍方案的各项功能。经过实际运行,该技术方案,并介绍方案的各项功能。可有效实现运输巷道中车辆和人员的监控,落实＂行车不行人,行人不行车＂的规定,煤矿轨道运输的管控由人防上升到技防,提升了轨道运输安全的信息化、智能化管控水平。     

化工设备安全检修探析

化工设备的安全检修必须建立严格的安全管理制度。文中叙述了需检修设备的停车处理原则,系统分析了设备检修的技术操作程序,最后提出了设置设备检修质量安全观察期的办法以加强化工设备安全检修管理。     

Effective lining of tunnel kiln cars made of aluminosilicate ceramoconcrete

Aluminosilicate ceramoconcrete lining for cars used in ceramic plant firing kilns was developed and introduced. The first cars with this lining have already operated for more than 50 cycles.     

Development and use of refractories for lining cars for firing building brick

Effective refractory materials for lining the hearths of tunnel furnace cars were developed at Petrokast Silika Co. The cars lined with such refractories have been successfully operating for more than 2.5 years in various enterprises.     

Mechanized containerless method of transporting refractories

Conclusions Experiments carried out with the use of the autodump cars with the special clamps for mechanization of handling work in refractories departments and transporting departments of refractories plants and factory users and warehousing indicate that this method is effective for the refractories industry.The introduction of the above method into the refractories industry with low expenditure for producing the suspension clamps for autodump cars will increase the efficiency, reduce the labor expenditure on handling work by more than a half, and also cut waste and loss of refractories and reduce the downtime of railway cars.     

Review of the applications of biocomposites in the automotive industry

The article provides an overview of biocomposite application in the automotives via a documentation of their history, chronology and progressive steps taken to break into the production lines of a number of key auto makers. It offers a detailed analysis of the key factors that have motivated the research and subsequent adoption of biocomposites; taking a peek at the advantages, disadvantages, and challenges experienced in the process. Auto makers and parts suppliers that have been a force behind this campaign, have also been accorded a fair share in the article. Future projection of role of these materials in the industry; with the ideas well dressed in form of bio concept cars caps up the paper. Automotive refers to; passenger cars, sport utility vehicles, vans, trucks, buses, and recreational vehicles. POLYM. COMPOS., 38:2553–2569, 2017. © 2016 Society of Plastics Engineers     

电泳涂装成本构成及控制

提高质量、降低成本是轿车市场竞争的必然趋势。而电泳涂装成本不仅是轿车厂家和电泳材料供应商十分关注的重要问题,而且也是影响涂装产品用户切身利益的重要问题。本文围绕电泳涂装工艺、涂装材料、涂装设备、日常管理及质量控制方面浅谈电泳涂装成本的构成及控制。     

停放时间对于两段式串联混炼工艺的影响

采用串联式密炼机,分别研究停放时间对啮合型转子和剪切型转子对混炼胶质量的影响。实验结果表明,停放时间对于啮合式转子串联式混炼的影响要大于剪切型转子的串联混炼的影响,经综合分析混炼胶料的各项物理机械性能,可知胶料停放时间3小时为最佳值。