基于Web的自动测量系统教学平台开发与实现

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"这篇论文探讨了基于Web的教学工具和材料的开发与实施，特别是针对自动测量系统及其应用的课程。作者包括Shun Chung Wang、Juing Huei Su、Yi Hua Liu、Yih Chien Chen和Chyi Shyong Lee，主要关注点在于如何利用Web技术提升教学效率和质量。" 在当前的教育环境中，Web技术的运用已经成为一个重要的发展趋势。这篇论文《Development_and_Implementation_of_Web-Based_Teaching_Aids_and_...》特别关注于构建一个自动测量系统的Web平台，该系统能够帮助学生理解和学习自动测量平台的概念及其在电磁设备中的应用。自动测量系统在工业的各个领域都发挥着关键作用，它可以降低研究和开发的成本，减少时间消耗，并提高产品质量。论文中提出的Web-based集成测量系统旨在自动测量并识别电磁设备的固有特性，提供了一种创新的教学方式。系统由三部分组成：可编程设备测试台、基于Web的远程实验室以及用户交互式的电子学习平台。这些组成部分共同协作，为学生提供了一个动态的学习环境。 1. 可编程设备测试台：这是一个可以通过Web界面进行配置的设备，学生可以在此构建各种驱动电路和待测设备，从而实现实际操作的学习体验。 2. 基于Web的远程实验室：让学生能够在任何有网络连接的地方访问实验设备，打破了地域限制，增加了学习的灵活性和便利性。 3. 用户交互式电子学习平台：这种平台鼓励学生积极参与，通过互动和实践来增强理解和记忆，使得学习过程更加生动有趣。通过这样的Web技术应用，教学不再局限于传统的教室环境，而是延伸到了虚拟空间，使得学习更为高效、自主。同时，这样的系统也有助于培养学生的创新思维和实际操作能力，符合现代教育对技术融合的追求。在"web asp"的标签下，我们可以理解这个项目可能采用了ASP.NET技术来构建Web应用程序，这是一种由微软开发的用于构建动态网站、Web应用和Web服务的框架。ASP.NET提供了丰富的功能和工具，可以简化开发过程，实现高效的数据处理和交互性，适合于构建这种复杂且用户友好的在线教学系统。这篇论文揭示了Web技术在教育领域的巨大潜力，特别是在提高自动测量系统课程的教学质量和效果方面。通过结合Web应用开发，尤其是ASP.NET技术，可以创建出具有高度互动性和实用性的在线教学资源，推动教育的现代化进程。

Session T1C

integrated measurement system which remotely measure and

identify those inherent characteristics of electromagnetic

designing their own test systems under fully automatized

through the Internet.

devices is proposed for students to learn the idea of automatic

measurement platform and its applications. Presently, the

AMS with a friendly graphical user interface (GUI) provides

six experiments for students to perform and learn via internet

browsers in the web-based course, “The practice of automatic

measurement systems and their applications”. The proposed

system consists of a programmable AMS test bench, a web-

based distance laboratory which allows the student to conduct

the remote experiment, and an integrated text and interactive

program to characterize the behavior model of device under

test (DUT). The AMS also provides an interactive interface

for teachers to edit the teaching materials, to set up web-based

experiments, and to assign the privileges for the students to

access the AMS.



Web-based distance laboratory: The web-based

distance laboratory contains different types of

measurement equipments such as digital storage

oscilloscopes (DSO) and digital multi-meters (DMM).

These instruments can be used to measure the voltage and

current waveforms of the DUT. These apparatus can be

remotely operated by means of GPIB or RS-232 control

signals that are generated by the interface cards installed

on the PC. Making the laboratory platforms available

through the Internet allow users to carry out practices in

the e-learning-based courses.

E-learning platform: The e-learning platform is

implemented on a standard PC. It is composed of a web-

based course contents, the interface cards used to

SYSTEM CONFIGURATION

Fig. 1 shows the block diagram of the proposed system. From

Fig. 1, the whole system can be divided into three major parts:

software reconfigurable test bench, web-based distance

laboratory and user interactive e-learning platform. Brief

descriptions of each part are as follows:

configure the hardware test bench and control distance

laboratory instruments, and a graphical waveform display

screen. The content of this e-learning platform contains

not only lecture notes and simulations but also on-line

experiment interface which will permit the students to

learn in a truly interactive mode.

The physical implementation of the whole system is

shown in Fig. 2. At present, six experiments, including high-

frequency magnetic core characterization, switched reluctance

motor magnetization characteristics identification, gas-

discharge lamp high-frequency V-I curve modeling, electric

machinery parameter measurement, renewable energy power

system monitor, and power electronics converter design and

verification, for students to do and learn. In order to simplify

the paper’s matter, in the following sections, only one

experimental item-the power electronics converter design and

verification is taken as an example to describe the basic

principle and functionality of each part inside the AMS in

detail.

FIGURE 1

BLOCK DIAGRAM OF THE PROPOSED SYSTEM.

 AMS test bench: The programmable AMS test bench

consists of a software-controlled reconfigurable hardware

board, a digital PWM generator and various types of

loads and the DUT. According to different testing devices

and measuring procedures, the test bench constructs the

power drive circuit, generates control gating signals,

conducts stimulus to DUT and routes test responses to

measurement instruments correctly. This hardware test

bench includes a fully software reconfigurable processing

core based on controllable switch matrix module from

National Instruments Corp. and a set of discrete power

devices and passive components. The digital PWM

generator is utilized to provide the gating signals to drive

the DUT. The test bench intends to let the students

FIGURE 2

PHYSICAL IMPLEMENTATION OF THE PROPOSED SYSTEM.

SOFTWARE RECONFIGURABLE TEST BENCH

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