ISP技术在智能仪器仪表设计中的应用

基于ISP技术的仪器仪表是仪器仪表智能化的重要发展方向，有广阔的应用前景。文章详细地介绍了ISP技术，ISP的功能特点，ISP器件的分类。提出了应用ISP技术的专家系统仪器仪表、模糊控制仪器仪表、人工神经网络仪器仪表的设计思想。文中最后还给出了一个利用ISP技术设计智能传感器接口模块的实例。     

ISP技术在智能氢气在线分析仪中的应用

随着在系统编程(ISP)技术的不断发展和成熟，各种在系统编程芯片不断涌现，使系统设计、生产、维护、升级等环节都发生着深刻的变革。介绍了8位微控制器W78E516的结构及特点，着重分析了ISP技术在智能氢气在线分析仪中的应用。     

基于VC的电路原理网络实验系统

介绍了基于VC的电路原理网络实验系统,该系统应用面向对象编程、网络、自动控制等技术,为用户提供一个基于真实实验设备、支持远程访问的实验环境。     

基于Web的虚拟实验室在高校实验教学中的应用

虚拟实验室系统是指应用虚拟技术来仿真实际物理实验的软件系统。本文详细地分析了虚拟仪器技术在实验室教学的意义，介绍了国内外虚拟实验室系统的发展状况。     

交互式模具虚拟实验系统的开发

针对模具应用技术本科在实验教学中存在的问题,引入交互式模具虚拟实验系统开发设想。基于UG6.0软件,构建交互式模具虚拟实验系统,学生通过模具结构的功能演示、虚拟拆装实训、虚拟运动仿真、虚拟实验评价模块,可以快速提升学生对模具知识的理解和应用能力,实现了互动式实验教学,可推广应用于模具教学培训。     

基于Web的虚拟自动生产线实验系统研究

虚拟实验系统是一个网络环境下建设远程教学系统的实验环境，它是一种异构问题的解决手段。随着计算机和虚拟现实技术的发展，它在以实验课程为基础的理工科教学中，将显得更加必要和紧迫。通过对实验原型与虚拟实验技术的分析，研究了基于Web的虚拟自动生产线实验系统的基本框架，阐述了实验系统的实现方案，涉及的关键技术以及虚拟现实技术与网络技术、数据库技术的应用集成，构建了基于Web环境的远程自动生产线实验系统：     

嵌入式系统中实现USB HOST技术研究

USB协议由于不对称，使嵌入式系统实现USBHOST协议比较困难，ISP1161的出现改变了这种状况。简要介绍了USB协议的拓扑结构和软件结构，重点分析了ISP1161的硬件结构，并给出在嵌入式系统中利用ISP1161实现USBHOST的软件流程，最后，给出了应用USBHOST模块的实例。     

基于Web的虚拟实验室在高校实验教学中的应用

虚拟实验室系统是指应用虚拟技术来仿真实际物理实验的软件系统.本文详细地分析了虚拟仪器技术在实验室教学的意义,介绍了国内外虚拟实验室系统的发展状况.     

在电子设计系统中引入ISP技术

介绍了ISP技术在逻辑控制方面的设计方法,并简要介绍了ISP器件在控制系统中的应用和硬件描述语言的描述过程。由于ISP器件的显著特征,使得在未来逻辑控制领域比MCU具有更广阔的发展前景。     

一种基于NTD的ISP框架相对角速度测量方法

为了提高航空遥感用三轴惯性稳定平台(inertially stabilized platform,ISP)框架角位置伺服精度,需要实现对ISP框架相对角速度的实时、高精度测量.为此,提出了一种基于非线性跟踪微分器(nonlinear tracking differentiator,NTD)获得ISP框架相对角速度的方法.并且,为了精确获取NTD算法中的参数,提出了一种NTD参数整定方法.在此基础上,结合ISP的控制系统,完成了ISP用NTD的设计.实验结果表明,与传统基于位置信号的测速法相比,该方法可有效抑制测量噪声,提高框架速率环控制精度,并将ISP框架的角位置伺服精度由原来的±0.015°提升至±0.002°.实验结果验证了该方法的可行性,为基于NTD的速度测量方法的工程应用提供了参考.     

A compound scheme on parameters identification and adaptive compensation of nonlinear friction disturbance for the aerial inertially stabilized platform

A compound scheme is proposed to compensate the effect of nonlinear friction disturbance on the control precision of a three-axis inertially stabilized platform (ISP) for aerial remote sensing applications. The scheme consists of friction parameters identification and adaptive compensation. A LuGre model-based ISP friction model is first developed. Then, a comprehensive experimental scheme is proposed to obtain the static friction parameters. Further, the dynamic parameters are identified by experiments and dynamic optimization. On the basis of identified parameters and Lyapunov stability theory, a backstepping integral adaptive compensator is designed to compensate the nonlinear friction disturbance. Simulations and experiments are carried out to validate the scheme. The results show that the compound scheme can accurately obtain the friction parameters and improve the control precision and stability of ISP.     

以透气性为中心的铅锌矿烧结混合料水分智能集成控制

针对铅锌冶炼过程中的烧结混合料制粒加水工艺，分析了烧结混合料制粒含水的作用及其对烧结过程透气性的影响，提出了以透气性为中心的烧结混合料水分智能控制系统。系统以综合透气性指数神经网络模型和透气性判断模型为核心，结合智能优化搜索算法，控制混合料制粒加水，改善透气性，从而提高烧结生产的质量与产量。     

Design of Image Signal Processor for Hardware Size

The Image sensor needs various image processing by Image Signal Processor(ISP)to improve image quality.Conventional cameras have their own software ISP functions to perform in PC instead of using commercial ISP chips.However these methods have problems such as large computation for image processing.In this paper,th authors proposed ISP that significantly reduced chip area by efficiently sharing of hardware and software.Large operation blocks are designed to hardware for high performances,and hardware is imployed simultaneously with software considering the size of the hardware.The implemented ISP can process Video Graphics Array(VGA)(640480)images and has 91 450 gates size in 0.35 μm process.     

Fracture criteria identification using an inverse technique method and blanking experiment

In order to optimize the blanking processes, it is important to identify the conditions within the deforming workpiece which may lead to fracture initiation and propagation. Within this framework, numerical simulations are widely used in industries to optimize sheet metal forming processes. However, in order to have a confidence in the results of such simulations, an accurate material model is required. The accuracy of a material model is affected by the constitutive equations and the values of the material parameters. In order to reduce the danger of fracture of metal parts during manufacturing processes, advanced optimal design requires knowledge of critical values of some fracture criteria of the material used. Experimental identification of fracture criteria are currently obtained by performing several complicated tests and long duration of experiments.This study presents a computation methodology allowing for the identification of critical values of fracture criteria in order to simulate crack initiation and propagation generated by shearing mechanisms, which are needed for metal blanking processes simulation. The approach is based on inverse technique using circular blanking experiments and finite element calibration model. The critical values of fracture criteria are obtained in such a way that the finite element force–penetration predicted curve fit the experimental plot deduced from blanking tests. The numerical results obtained by the simulation were compared with experimental ones to verify the validity of the proposed technique for fracture criteria identification.     

基于HART协议的点-点智能压力变送器系统

论述了压力变送器的工作原理及HART协议在现场仪表中的应用，研究了基于HART协议的智能变送器及手操器的硬件结构、原理及软件功能描述，压力传感器采用MPX4100A集成硅压力传感器，CPU采用内带8路8位A／D的MC68H08，HART协议调制解调器采用A5191HRT。系统设计了完整的手操器及智能压力变送器的硬件电路及软件编程，实现了点对点的压力数据的采集和传输。     

在系统可编程(ISP)技术及其器件

介绍了在系统可编程(ISP)技术的概念及其对当今数字电子系统设计带来的革新,对在系统可编程逻辑器件(ispLSI)的性能、结构以及特征作了较详细的分析,最后分析了在系统编程原理。     

Interpretation and implementation of an ion sensitive probe as a plasma potential diagnostic

An ion sensitive probe (ISP) is developed as a robust diagnostic for measuring plasma potentials (Φ(P)) in magnetized plasmas. The ISP relies on the large difference between the ion and electron gyroradii (ρ(i)/ρ(e)～60) to reduce the electron collection at a collector recessed behind a separately biased wall distance ～ρ(i). We develop a new ISP method to measure the plasma potential that is independent of the precise position and shape of the collector. Φ(P) is found as the wall potential when charged current to the probe collector vanishes during the voltage sweep. The plasma potentials obtained from the ISP match Φ(P) measured with an emissive probe over a wide range of plasma conditions in a small magnetized plasma.