Virtual instrument is playing the important role in automatic test system. This paper introduces a composition of a virtual instrument automatic test system and takes the VXIbus based a test software platform which is...Virtual instrument is playing the important role in automatic test system. This paper introduces a composition of a virtual instrument automatic test system and takes the VXIbus based a test software platform which is developed by CAT lab of the UESTC as an example. Then a method to model this system based on Petri net is proposed. Through this method, we can analyze the test task scheduling to prevent the deadlock or resources conflict. At last, this paper analyzes the feasibility of this method.展开更多
本文基于ASP.NET+SQL server 2000开发平台,针对远程教育,各种资格认证等网上考试系统的管理,设计并实现一个网上考试系统过程,包括系统需求分析和系统的功能设计、数据库设计以及主要ASP.NET页面的设计,重点阐述了用户登录模块、题库...本文基于ASP.NET+SQL server 2000开发平台,针对远程教育,各种资格认证等网上考试系统的管理,设计并实现一个网上考试系统过程,包括系统需求分析和系统的功能设计、数据库设计以及主要ASP.NET页面的设计,重点阐述了用户登录模块、题库管理模块和试卷管理模块的设计。展开更多
基金Supported by the Ministry of Education for Ph. D (20030614006)
文摘Virtual instrument is playing the important role in automatic test system. This paper introduces a composition of a virtual instrument automatic test system and takes the VXIbus based a test software platform which is developed by CAT lab of the UESTC as an example. Then a method to model this system based on Petri net is proposed. Through this method, we can analyze the test task scheduling to prevent the deadlock or resources conflict. At last, this paper analyzes the feasibility of this method.
