时钟日历芯片DS1302在出租车计价器中的应用

文章针对当前出租车计价器使用的时钟日历芯片DS130 2存在的问题 ,提出几种补充和改进措施 ,使出租车计价器在恶劣的环境中稳定、准确     

出租车计价器作弊手段及防范对策探讨

出租车行业是我国第三产业的重要组成部分,对国民经济的发展起到重要的补充作用。其服务质量直接影响着行业的可持续发展。但受到多种原因的影响,出租车计价器成为有些投机分子的钻营的目标,使得计价器失准,从而影响了出租车行业的服务质量。本文针对出租车计价器作弊问题进行了分析,并提出相应的解决对策,要求加大执法力度来规范行业行为,加强监督,加强控制,从而为城市输出高质量的出租车便民服务。     

轮胎修正值对出租车计价器误差检定影响的研究

出租车作为构成城市交通体系中重要的交通工具,为人们的出行带来了很大便利,因此,出租车计价器的计量检定是民生计量中必不可少的部分。介绍了出租车计价器的检定原理、检定方法以及检定装置的工作原理等,研究了影响出租车计价器检定误差的部分因素以及解决方法。     

出租车计价器的计量检定问题及优化策略

出租车计价器的违法改装以及监管的不到位,是导致消费者利益受损的主要原因。本文分析讨论出租车计价器检定工作存在的问题,并结合实际情况提出了相应的优化方案和策略。希望以此改善出租车运营环境,进一步切实保护消费者合法权益。     

怎样排除和解决出租车计价器的外围故障

在维修出租车计价器的过程中，出租车外围故障的修理量占出租车计价器维修总量的62％以上，本文将对部分故障进行分析，并提出一些解决方法。     

嵌入式出租车计价器防作弊系统的设计与实现

正一、计价器作弊的控制策略与方法1.控制策略与方法现有计价器在设计技术层面上存在的缺陷难以对作弊机理进行抑制与消除,因此,需要在出租车计价器的壳体内部、出租车计价器脉冲输入端与出租车计价器主机之间加入一个智能嵌入式模块,对常见的作弊机理的方法进行识别。一旦认定存在作弊的情况,应阻断输入脉冲到出租车计价器主机的脉冲通道并示警,使作弊行为不能得逞并让舞弊者付出一定的经济代价,从而在源头上消除作弊者的作弊愿望与冲动。     

出租车计价器常见作弊手段分析及防范

目前出租车已经成为人们日常出行的重要工具,如何防范出租车计价器作弊也是计量行政部门和广大消费者关注的重点。本文笔者就从事出租车计价器检修工作的经验,简单地的介绍出租车计价器常见的作弊手段,进而有针对性的提出防范措施,旨在减少出租车计价器作弊行为,维护消费者合法权益。     

出租车计价器及其检定技术的探讨

随着社会进步和人们生活水平的提高,出租车行业迅速发展,打车成为人们出门选择的重要葵至是主要方式,而出租车计价器作为乘客支付租金的依据,直接关系着乘客的经济利益以及乘客和出租车司机之间的关系,因此它的公平度和精确度就十分重要,而计价器的检定又是为其公平和精确做好监督的重要技术。本文对出租车计价器做了简单的介绍,并且就出租车运营过程中计价器所发挥的作用、计价器检定技术及检定中出现的问题做了探讨。     

CBJ-A型多功能出租车计价器检定仪系统设计与开发

提出和实现了一种基于GPS卫星定位技术,应用于出租汽车计价器使用误差检定的新方法。该方法是将岔有GPS全球定位系统为主要工作模块的CBJ—A多功能出租汽车计价器检定仪,放置在安装有出租车计价器的出租车上,同时启动检定装置与出租车计价器开始计程,利用GPS定位系统获得的出租车行驶轨迹,得到行驶里程,与出租汽车计价器的行驶里程作比较,计算误差,从而达到检定出租车计价器使用误差的目的。     

上海市质量技术监督局关于加强出租车计价器管理的通知

各出租车计价器制造修理单位、市计量协会出租车计价器专委会： 近期本市发现出租车驾驶员通过遥控“脉冲发生器”随意改变计价器上显示的营业公里数进行恶意宰客的事件,严重损害了乘客利益。为有效遏制此类现象的蔓延,加强和规范对本市出租车计价器制造修理单位的管理,现就有关事项通知如下：     

检定和校准证书的异同与应用

本文介绍了检定和校准以及证书的两点相同、五点不同之处,说明了对检定证书和校准证书的正确应用。     

Synthesis and luminescent properties of alkali-metal and ammonium fluorosulfatozirconates and fluorosulfatohafnates

We have synthesized a variety of alkali-metal and ammonium fluorosulfatometallates (titanates, zirconates, and hafnates). The alkali fluorosulfatozirconates and fluorosulfatohafnates have been shown to exhibit efficient roentgenoluminescence (RL) in the UV through visible spectral region, with a maximum at 390–440 nm. Their RL spectra depend significantly on their composition (cation, anion, and water content), coordination of KF and K₂SO₄, and relative amounts of fluorine and SO₄ groups. We have examined the effect of heat treatment on the RL of these compounds. The rubidium and cesium fluorosulfatozirconates Rb₃Zr₂F₉SO₄ · 2H₂O, Cs₂ZrF₂(SO₄)₂ · 2H₂O, Cs₈Zr₄F₂(SO₄)₁₁ · 16H₂O, and Cs₂ZrF₄SO₄ offer the most efficient RL.     

The shape and stability of wall-bound and wall-edge-bound drops and bubbles

The behavior of wall-bound drops and bubbles is fundamental to many natural and industrial processes. Key characteristics of such capillary systems include interface shape and stability for a variety of gravity levels and orientations. Significant solutions are in hand for axisymmetric pendent drops for a variety of uniform boundary conditions along the contact line with gravity acting normal to a planar wall. The special case of a wall-bound drop or bubble that is also pinned at an edge (i.e. a ‘wall-edge-bound’ drop) is considered here where numerical solutions are obtained for interface shape and stability as functions of drop volume, contact angle, fluid properties, and uniform gravity vector. For a semi-infinite zero-thickness planar wall (plate), a critical contact angle is identified below which wall-edge-bound drops are always stable. The critical contact angle is computed as a function of the gravity vector. The numerical procedure, which makes no account for contact angle hysteresis, predicts that such wall-edge-bound drops are unconditionally unstable for any gravity field with a component that is tangent to the wall while inwardly normal to the edge. Select experiments are conducted that support the conclusions drawn from the numerical results.     

凝固科学技术与材料

从凝固科学与实践发展的角度介绍了当前凝固材料体系的基本框架和凝固科学主要发展阶段的基本理论。作为材料科学与工程的基本组成，凝固科学技术正在现代科学理论的基础上针对传统材料的改性提高和新材料的发展需求，以控形、控构、控性为目标开展优质铸件的定向、晶体生长、快凝、深过冷及各种新型和超常领域凝固过程的研究，并介绍了其中某些方面和展望了可能的发展趋势。     

Heat and Mass Transfer and Modeling and Prediction of Environmental Catastrophes

Basic definitions and concepts of the physicomathematical theory of natural catastrophes are given. Possibilities of mathematical modeling of natural and technogenic catastrophes are discussed in the context of the theory of heat and mass transfer and the mechanics of reacting media. The importance of taking into account conjugate heat and mass exchange in modeling catastrophes is emphasized. A formula for evaluating the probability of a collisional catastrophe is given.     

Multi-ferroic and magnetoelectric materials and interfaces

The existence of multiple ferroic orders in the same material and the coupling between them have been known for decades. However, these phenomena have mostly remained the theoretical domain owing to the fact that in single-phase materials such couplings are rare and weak. This situation has changed dramatically recently for at least two reasons: first, advances in materials fabrication have made it possible to manufacture these materials in structures of lower dimensionality, such as thin films or wires, or in compound structures such as laminates and epitaxial-layered heterostructures. In these designed materials, new degrees of freedom are accessible in which the coupling between ferroic orders can be greatly enhanced. Second, the miniaturization trend in conventional electronics is approaching the limits beyond which the reduction of the electronic element is becoming more and more difficult. One way to continue the current trends in computer power and storage increase, without further size reduction, is to use multi-functional materials that would enable new device capabilities. Here, we review the field of multi-ferroic (MF) and magnetoelectric (ME) materials, putting the emphasis on electronic effects at ME interfaces and MF tunnel junctions.