MiniGUI在便携式监护仪上的应用

分析了监护仪界面上常用设计方法的各个特性,由于过去的实现方法具有难以避免的缺陷,主要是在便携性以及美观性上。提出了用MiniGUI来设计便携式监护仪界面应用程序,简要介绍MiniGUI的特性,并结合监护仪的实用性以及嵌入式系统的特点,采用模块化的实现方案,对监护仪界面的程序作出了分析和实践。本系统在基于AT91RM9200的平台上运行,经过实践证明,该程序界面美观使用,系统运行良好,使用嵌入式系统,便于携带。     

多路医学生理信号无线监护仪设计及应用

为了实时、连续及长时间地监测病人的重要生命特征参数,协助医护人员进行诊断和治疗,设计了一种基于无线数据传输的多路医疗生理信号监护仪,该仪器可实现对8路膈肌肌电信号或心电信号进行高精度数据采集并实时无失真把生理信号通过无线通信方式传送到远端监护室进行显示、存储、分析与处理。该监护仪已经在广州呼吸疾病研究所得到了临床应用,使呼吸疾病的遥测无线监护成为了可能。     

监护仪的使用保养和维修

在临床,对患者的实时动态观察主要是通过监护仪来完成的,监护仪是现代化临床护理必备的医疗仪器。监护仪在急救中使用的最为频繁,经常的要移动,而且使用人员基本不是固定的,而且仪器上面的连线较多,在使用过程中经常性的出现问题。然而监护仪造价高,使得一般医院的监护仪的数量有限,这就要求监护仪在使用的过程中要做好保养,减少问题的发生的同时要学会一般的维修工作。本文从监护仪的重要性出发,分析了一般多参数监护仪经常出现的问题,并提出了维修的建议,同时对便携式监护仪的使用维修进行了探讨,并且就提高使用人员素质方面提出了建议。     

一款数字化血压监护仪参考设计

数字化血压监护仪可以帮助内科医生诊断出高血压病并帮助患者控制高血压.便携式血压监护仪则能让病人在家里无需医生就可以经济地测量血压,从而有助于早期诊断和高血压控制.本文将介绍一款飞思卡尔公司的血压监护仪参考设计.     

W3100A在家用监护仪网络接口中的应用

文章讨论了网络化接口中TCP/IP协议栈的实现方式,着重探讨了基于TCP/IP协议栈芯片W3100A的家用监护仪网络化接口的实现,最后介绍了如何通过Internet获得仪器各种数据的方法。     

基于TMS320C31的蓝牙家庭生理监护仪的研制

介绍了以TMS320C31为中央处理器。采用蓝牙技术来设计家庭多路生理监护仪的具体方案。该监护仪能实时监测人体心电信号、脉搏、血氧饱和度和体温等生理参数。同时具有实时显示心电和脉搏波形以及监督报警功能,并可通过RS-232接口与微机进行串行通信,是一种适用于社区及家庭医疗的生理监护仪。     

基于混合现实技术的监护仪虚拟教学系统设计

针对传统监护仪培训过程受人员、时空和设备制约等问题，文中结合混合现实（MR）技术的真实体验感、沉浸感、跨时空和强交互等特点，构建完善的混合现实监护仪虚拟教学系统。通过3DMAX软件完成系统三维建模，在Unity中构建培训场景实现系统功能，最终在HoloLens混合现实设备中实现产品介绍、功能演练和操纵练习三大功能。调查问卷结果表明，所设计系统能够激发使用者探索欲望和学习兴趣，提供给使用者接近现实环境的操作体验，并能够有助于使用者掌握监护仪使用方法，可为未来医疗器械的教学培训提供参考。     

无线多用户颅内压监护仪的设计及应用

实现颅内压的无线监护目前已经成为临床医疗的最新发展方向.作为颅内压无线监护仪中首要的组成部分,传感器放大电路及其附加电路发挥着相当重要的作用.以无线多用户颅内压监护仪的设计为例,给出了颅内压无线监护仪的体系结构和原理框图,论述了传感器及其放大电路的设计方法,介绍了其他附加转换电路的设计过程,最后针对在设计微弱信号(μV级)放大电路时遇到的实际问题进行了分析,提出了具体的解决办法.     

网络化仪器中的远程图像监控系统

设计一种网络化仪器,由高速MCU SX52、扩展网络接口电路和CCD图像采集部件组成远程网络图像监控系统,它用虚拟外设方法实现与图像采集部件的接口,精简并整合TCP/IP协议簇,使之在C/S模式下工作,作为服务器它接受远程PC机控制,对网络化仪器测量、定标和故障检测等过程进行监控,并介绍了该系统的硬件软件实现方法.     

基于网络的远程测试系统技术研究

随着自动测试技术与网络技术的紧密结合,基于网络的远程测试系统迅速发展.测试技术网络化不仅可以降低测试系统成本,有利于实现远距离测控和测试资源共享,而且有利于实现设备的远距离诊断和维护.此网络测试系统主要是将现有的自动测试技术和仪器应用于远程测试系统中,根据仪器接入远程测试系统的方式,介绍了其一般硬件构成,并且分析了其软件结构、主要工作模式及相关软件开发方法,最后介绍了基于网络的远程测试系统的发展.     

Resolution Enhancement Technology:Integrated Process Solutions using OPC

DUV lithography, using the 248 nm wavelength, is a viable manufacturing option for devices with features at 130 nm and less. Given the low kl value of the lithography, integrated process development is a necessary method for achieving acceptable process latitude. The application of assist features for rule based OPC requires the simultaneous optimization of the mask, illumination optics and the resist.Described in this paper are the details involved in optimizing each of these aspects for line and space imaging.A reference pitch is first chosen to determine how the optics will be set. The ideal sigma setting is determined by a simple geometrically derived expression. The inner and outer machine settings are determined, in turn,with the simulation of a figure of merit. The maximum value of the response surface of this FOM occurs at the optimal sigma settings. Experimental confirmation of this is shown in the paper.Assist features are used to modify the aerial image of the more isolated images on the mask. The effect that the diffraction of the scattering bars (SBs) has on the image intensity distribution is explained. Rules for determining the size and placement of SBs are also given.Resist is optimized for use with off-axis illumination and assist features. A general explanation of the material' s effect is discussed along with the affect on the through-pitch bias. The paper culminates with the showing of the lithographic results from the fully optimized system.     

Cost-effective test solutions for smart card and other integrated flash applications

From its emergence in the late 1980s as a lower cost alternative to early EEPROM technologies, flash memory has evolved to higher densities and speedsand rapidly growing acceptance in mobile applications.In the process, flash memory devices have placed increased test requirements on manufacturers. Today, as flash device test grows in importance in China, manufacturers face growing pressure for reduced cost-oftest, increased throughput and greater return on investment for test equipment. At the same time, the move to integrated flash packages for contactless smart card applications adds a significant further challenge to manufacturers seeking rapid, low-cost test.     

Theoretical analysis of the relationship between the Brillouin gain coefficient and the strain in the optical-fiber sensors

The relation between the power of the Brillouin signal and the strain is one of the bases of the distributed fiber sensors of temperature and strain. The coefficient of the Bfillouin gain can be changed by the temperature and the strain that will affect the power of the Brillouin scattering. The relation between the change of the Brillouin gain coefficient and the strain is thought to be linear by many researchers. However, it is not always linear based on the theoretical analysis and numerical simulation. Therefore, errors will be caused if the relation between the change of the Brillouin gain coefficient and the strain is regarded as to be linear approximately for measuring the temperature and the strain. For this reason, the influence of the parameters on the Brillouin gain coefficient is proposed through theoretical analysis and numerical simulation.     

An improved parallel thinning algorithm with two subiterations

The parallel thinning algorithm with two subiterations is improved in this paper. By analyzing the notions of connected components and passes, a conclusion is drawn that the number of passes and the number of eight-connected components are equal. Then the expression of the number of eight-connected components is obtained which replaces the old one in the algorithm. And a reserving condition is proposed by experiments, which alleviates the excess deletion where a diagonal line and a beeline intersect. The experimental results demonstrate that the thinned curve is almost located in the middle of the original curve connectivelv with single pixel width and the processing speed is high.     

Novel fiber-optical interferometer with miniaturized probe for in-hole measurements

Today, micro-system technology and the development of new MEMS （Micro-Electro-Mechanical Systems） are emerging rapidly. In order for this development to become a success in the long run, measurement systems have to ensure product quality. Most often, MEMS have to be tested by means of functionality or destructive tests. One reason for this is that there are no suitable systems or sensing probes available which can be used for the measurement of quasi inaccessible features like small holes or cavities. We present a measurement system that could be used for these kinds of measurements. The system combines a fiber optical, miniaturized sensing probe with low-coherence interferometry, so that absolute distance measurements with nanometer accuracy are possible.     

Study of waveguide coupling efficiency in hybrid silicon lasers

This paper presents a new method to increase the waveguide coupling efficiency in hybrid silicon lasers. We find that the propagation constant of the InGaAsP emitting layer can be equal to that of the Si resonant layer through improving the design size of the InP waveguide. The coupling power achieves 42% of the total power in the hybrid lasers when the thickness of the bonding layer is 100 nm. Our result is very close to 50% of the total power reported by Intel when the thickness of the thin bonding layer is less than 5 nm. Therefore, our invariable coupling power technique is simpler than Intel＇s.     

Teleportation of an arbitrary unknown N-qubit entangled state under the controlling of M controllers

A new quantum protocol to teleport an arbitrary unknown N-qubit entangled state from a sender to a fixed receiver under M controllers(M < N) is proposed. The quantum resources required are M non-maximally entangled Greenberger-Home-Zeilinger (GHZ) state and N-M non-maximally entangled Einstein-Podolsky-Rosen (EPR) pairs. The sender performs N generalized Bell-state measurements on the 2N particles. Controllers take M single-particle measurement along x-axis, and the receiver needs to introduce one auxiliary two-level particle to extract quantum information probabilistically with the fidelity unit if controllers cooperate with it.     

A rigorous proof of MIMO channel capacity’s increase with antenna number

It is well known that adding more antennas at the transmitter or at the receiver may offer larger channel capacity in the multiple-input multiple-output（MIMO） communication systems. In this letter, a simple proof is presented for the fact that the channel capacity increases with an increase in the number of receiving antennas. The proof is based on the famous capacity formula of Foschini and Gans with matrix theory.     

Diode-end-pumped Nd:YVO4/LBO lasers with 4.2W continuous-wave output at 457 nm

A continuous-wave (CW) 457 nm blue laser operating at the power of 4.2 W is demonstrated by using a fiber coupled laser diode module pumped Nd: YVO4 and using LBO as the intra-cavity SHG crystal With the optimization of laser cavity and crystal parameters, the laser operates at a very high efficiency. When the pumping power is about 31 W, the output at 457nm reaches 4.2 W, and the optical to optical conversion efficiency is about 13.5% accordingly. The stability of the out putpower is better than 1.2% for 8 h continuously working.     

Call for Papers

正Wireless Body-area Networks The last decade has witnessed the convergence of three giant worlds:electronics,computer science and telecommunications.The next decade should follow this convergence in most of our activities with the generalization of sensor networks.In particular with the progress in medicine,people live longer and the aging of population will push the development of wireless personal networks