利用WatComC++开发检验仪器多线程数据通信接口

针对医院信息系统中检验子系统的实际需要 ,研究检验仪器的实际特点 ,在 32位 Windows平台上利用 Power Builder与 Wat Com C++开发了检验数据通信接口 ,将通信接口无缝地嵌入到客户 /服务器体系的检验子系统 ,有效地管理了种类繁多的检验仪器 ,成功地实现了划分 CPU时间片方式的前台检验数据统计、查询与后台检验数据自动接收的并行处理。     

大坝内部埋设钢弦式仪器现场检验与分析

埋设在大坝内部的仪器性能关系到能否反映大坝的运行状况,提供准确的监测数据,发挥应有的监测作用。通过满拉水利枢纽工程实例,介绍埋设在大坝内部的钢弦式仪器的工作原理,探讨产生故障可能的因素,按照现行技术规程,对埋设仪器进行各项性能检验,通过检验数据和历史数据进行分析,判断埋设在大坝内部的大部分钢弦式仪器的工作特性满足其基本性能和规范要求,为工程监测系统的改造设计、施工、运行评价提供依据,对同类工程有一定参考价值。     

计算机32位串行数据通信接口的设计与实现

文章针对医院检验科数据库管理及自动化检验仪器的实际特点,在Ｗｉｎ９５平台上利用ＰｏｗｅｒＢｕｉｌｄｅｒ与ＷａｔＣｏｍＣ＋＋开发３２位检验数据串行接口,实现了自动化检验数据接收模块与客户／服务器（Ｃ／Ｓ）体系的大型关系数据库Ｓｙｂａｓｅ的无缝连接,有效管理了种类繁多的检验仪器,成功地实现了划分ＣＰＵ时间片方式的前台检验数据统计、查询与后台检验数据自动接收同时运行。     

商品条码检验数据分析管理系统

一、前言 长期来人们目视观察条码外观并用仪器测出条码的条／空反射率和条／空尺寸,然后根据有关的条码标准或技术规范判断条码质量是否合格,这种检验方法就是我们常说的传统检验方法。但是后来发现。经传统方法检验后判定为不合格的条码中有很大一部分可以被大多数条码扫描仪器较好地识读。这反映出传统检验方法在某些方面不切合条码应用的实际。     

自动测试系统自检方案设计

大型自动测试系统测试仪器、开关的种类、型号、数量都较多,因此全系统自检有较大难度。分析一般自动测试系统基于仪器自检的系统自检、基于仪器比对的系统自检、基于开关切换的系统自检等方案,给出一种综合自检方案。该方案分为仪器自检、关键仪器测试、开关系统测试和仪器比对4个步骤,能可靠地检验自动测试系统通用部分的可用性。     

浅析高校实验仪器管理中TPM模式的应用

高校实验仪器是教学实验活动开展的基础设备,是检验学校实验设施完善性的重要因素,加强对高校实验仪器的科学管理,有利于延长实验仪器的使用寿命,不断提升学校的实验教学水平。本篇文章主要对TPM模式在高校实验仪器管理中应用的措施进行分析,旨在有效提升我国高校实验仪器的科学管理,为学生实践技能的提升搭建一个完善的平台和良好的实验平台。     

采掘装备电控箱电控功能检验系统的研发

针对采掘装备电控系统功能繁多、结构复杂的现状,设计开发了一种电控箱电控功能检验系统。该系统通过模拟控制指令和工况信号来检验电控箱输出响应,具有动作控制功能检验、故障诊断系统性能检验、保护性能检验、动作性能检验等功能。与手持式仪器逐项检验相比,该系统可实现多种输入信号组合输入和输出信号的监测功能,可模拟应用中更多因误操作而产生的控制结果。测试结果证明了该系统的有效性。     

国外测试技术动态分析

测试技术是一项基础技术,测试仪器行业是一个高新技术产业.在信息化时代的今天,测试仪器不仅是检验和计量的标准,也是系统调试和分析的工具,测试仪器与技术已涉及国民经济的各个行业.大型电子工程的可测性设计已引起人们的重视,仪器的基础地位不断加强.在军事技术应用方面,测试仪器的后勤支援保障作用和仪器视同装备的观念,已得到军界领导和专家的认同.测试仪器行业正处于振兴和发展的大好时机,同时也面临着经济效益和市场的巨大压力.在当前的形势下,如何借鉴国外的先进经验与先进技术发展国产电子测试仪器产业是一个值得探讨的问题,本文结合对国外电子测试仪器的考察情况,介绍国外仪器的发展现状、技术特点和发展趋势.     

带电绕组温升测试仪的设计

提出一种四线制测试带电绕组电阻和温升的方法，介绍了测量电路的原理，仪器的组成和功能，用三种试验方法对被测量的热态电阻进行了检验，证明仪器具有较好的测量精度和稳定性。     

基于嵌入式Linux智能仪器多输入设备设计与实现

介绍了一种基于ARM9平台的嵌入式Linux操作系统智能仪器的硬件及软件架构,详细讨论了CPLD作为输入设备接口,并使用轻量级图形用户界面支持系统（MiniGUI）作为人机交互中间件时,系统同时支持多个输入设备的接口、驱动设计与实现。该技术已成功应用于智能医学检验仪器,还可以用于其它智能仪器和嵌入式测控系统开发。     

Developing a vision-based auto-recharging system for mobile robots

This article describes a vision-based auto-recharging system that guides a mobile robot moving toward a docking station. The system contains a docking station and a mobile robot. The docking station contains a docking structure, a control device, a charger, a safety detection device, and a wireless RF interface. The mobile robot contains a power detection module (voltage and current), an auto-switch, a wireless RF interface, a controller, and a camera. The controller of the power detection module is a Holtek chip. The docking structure is designed with one active degree of freedom and two passive degrees of freedom. For image processing, the mobile robot uses a webcam to capture a real-time image. The image signal is transmitted to the controller of the mobile robot via a USB interface. We use an Otsu algorithm to calculate the distance and orientation of the docking station from the mobile robot. In the experiment, the proposed algorithm guided the mobile robot to the docking station.     

充电桩计量过程中输出与充电需求不匹配问题分析及处理

针对充电桩现场测试设备的充电需求与实际输出不一致,出现电压、电流不匹配的问题,设计了一套检测方案,构建出包括电流检测模块、电压检测模块和示波器检测模块的检测电路,通过采样电压和电流信号,计算出不同负载下充电桩输出电流和电压值,并设计了包括直流电能采集电路,由双通道AD转换AD7380、可编程增益放大器、可编程增益放大器、增益电阻Rg2和电源变换器、低通滤波器电容CL、低通滤波器电阻RL组成的检测电路,在检测电路中,为了提高检测效率,还设置了校正电路。通过试验,本研究方法分析直观,误差低。     

Near-future perception system: Previewed Reality

ABSTRACT

The present paper introduces a near-future perception system called Previewed Reality. In a co-existence environment of a human and a robot, unexpected collisions between the human and the robot must be avoided to the extent possible. In many cases, the robot is controlled carefully so as not to collide with a human. However, it is almost impossible to perfectly predict human behavior in advance. On the other hand, if a user can determine the motion of a robot in advance, he/she can avoid a hazardous situation and exist safely with the robot. In order to ensure that a user perceives future events naturally, we developed a near-future perception system named Previewed Reality. Previewed Reality consists of an informationally structured environment, a VR display or an AR display, and a dynamics simulator. A number of sensors are embedded in an informationally structured environment, and information such as the position of furniture, objects, humans, and robots, is sensed and stored structurally in a database. Therefore, we can forecast possible subsequent events using a robot motion planner and a dynamics simulator and can synthesize virtual images from the viewpoint of the user, which will actually occur in the near future. The viewpoint of the user, which is the position and orientation of a VR display or an AR display, is also tracked by an optical tracking system in the informationally structured environment, or the SLAM technique on an AR display. The synthesized images are presented to the user by overlaying these images on a real scene using the VR display or the AR display. This system provides human-friendly communication between a human and a robotic system, and a human and a robot can coexist safely by intuitively showing the human possible hazardous situations in advance.     

A proposal of bargaining solution for cooperative contract in a supply chain

As a problem in supply chain management, the decision problem of terms and conditions of a contract between a supplier and a retailer is recognized commonly. The concept of cooperative bargaining between a supplier and a retailer is the key concepts to resolve this problem in the supply chain. Then, the bargaining evaluation function by Nash in the game theory exists as a tool to obtain the solution by cooperation bargaining. The Nash bargaining solution is derived under the premise that a power balance between a supplier and a retailer is equal. However, the situation where the power balance between a supplier and a retailer in actual bargaining is not equal is supposed frequently. For the purpose of reflecting the power balance in obtaining the bargaining solution, the concept of a general bargaining solution was proposed and then the general bargaining evaluation function for obtaining the general bargaining solution was devised. However, in the case of adopting the general bargaining evaluation function as a bargaining tool, some problems are included. In this article, we address the problems in the general bargaining solution. Then, we propose a new concept of bargaining process to obtain a solution under considering the existence of power balance between a supplier and a retailer.     

基于RFID的磁盘加密系统

文章在跟踪和分析最新磁盘加密技术研究成果的基础上,设计了一种基于RFID的磁盘分区加密系统。该系统由磁盘分区加密软件Partition Crypt与RFID射频卡、USB射频读写端等硬件模块共同组成。软件部分对计算机硬件系统要求低、安装方便、使用简单、加密效果好;硬件部分由单片机与射频模块完成。其中,USB接口采用虚拟USB接口的方法,降低硬件复杂性与成本,具有很高的性价比。经过测试,整个系统功能稳定、性价比高、保密性好,可为广泛使用的基于Windows操作系统的涉密计算机提供加密技术保障,应用前景广阔。     

Basic position/force control of a single-axis arm designed with an ultrasonic motor

Recently, many studies on assist robots have been conducted in which the development of a unique system is required to support elderly people, physically handicapped people, and/or care givers. One typical system is called the assist suit, which has been used on a trial basis. The assist suit is a mechatronics device which can assist physical human actions. However, the current assist suit has a few problems with respect to cost, size, weight, endurance, and so on. This article describes a fundamental study concerning a compact assist device. The assist device supports one spot on the body, such as a knee, an elbow, or a shoulder. First, a simple single-axis arm was designed using an ultrasonic motor which can generate a high torque from a low velocity range. Then a servo-system, a torque control system, and a passive torque control system were designed and their characteristics were evaluated. In addition, the stability of the servo-system was analyzed. Here, the passive torque control includes a stiffness control and a compliance control.     

Automatic Generation of Virtual Woodblocks and Multicolor Woodblock Printing

In this paper, we study a method to synthesize a multicolor virtual woodblock print by using several virtual woodblocks. It consists of two sections: carving and printing, to synthesize a virtual print. In the carving section, virtual woodblocks are generated by a user with supporting of an automatically carving method based on feature extraction of a gray value image. And woodblocks are also generated automatically by using a full-color image as a draft. In the printing section, a "paper sheet", a "printing brush" and "ink" are prepared in addition to the "woodblock" in the virtual space and the user synthesizes a woodblock print interactively. As the printing factors, a color of ink, a moisture value and a grain change the finish of the print. Using several virtual woodblocks and printing to a paper sheet in succession, a printing image of each woodblock is combined based on the printing factors and a multicolor virtual prints is synthesized.     

New instant confirmation mechanism based on interactive incontestable signature in consortium blockchain

The blockchain is a radical innovation that has a considerable effect on payments, stock exchanges, cybersecurity, and computational law. However, its limitations in terms of the uncertainty involved in transaction confirmation are significant. In this paper, we describe the design of a decentralized voting protocol for the election of a block generator in a consortium blockchain and propose a new system framework that allows fast and exact confirmation of all transactions. In addition, to replace a transaction’s owner signature, a new interactive incontestable signature between the dealer and owner is used to confirm a transaction. By means of this signature, the dealer can assure the owner that a transaction will be permanently included in the blockchain in a non-repudiation manner. Moreover, the signatures of all transactions in a block share only one witness that provides membership proof between the block and these transactions. Finally, a security and performance analysis shows that the proposed schemes are provably secure and highly efficient.     

A 2.5D coupled FE–BE methodology for the dynamic interaction between longitudinally invariant structures and a layered halfspace

This paper presents a general 2.5D coupled finite element–boundary element methodology for the computation of the dynamic interaction between a layered soil and structures with a longitudinally invariant geometry, such as railway tracks, roads, tunnels, dams, and pipelines. The classical 2.5D finite element method is combined with a novel 2.5D boundary element method. A regularized 2.5D boundary integral equation is derived that avoids the evaluation of singular traction integrals. The 2.5D Green’s functions of a layered halfspace, computed with the direct stiffness method, are used in a boundary element method formulation. This avoids meshing of the free surface and the layer interfaces with boundary elements and effectively reduces the computational efforts and storage requirements. The proposed technique is applied to four examples: a road on the surface of a halfspace, a tunnel embedded in a layered halfspace, a dike on a halfspace and a vibration isolating screen in the soil.     

A multimodal language to communicate with life-supporting robots through a touch screen and a speech interface

This article proposes a multimodal language to communicate with life-supporting robots through a touch screen and a speech interface. The language is designed for untrained users who need support in their daily lives from cost-effective robots. In this language, the users can combine spoken and pointing messages in an interactive manner in order to convey their intentions to the robots. Spoken messages include verb and noun phrases which describe intentions. Pointing messages are given when the user’s finger touches a camera image, a picture containing a robot body, or a button on a touch screen at hand which convey a location in their environment, a direction, a body part of the robot, a cue, a reply to a query, or other information to help the robot. This work presents the philosophy and structure of the language.