This paper describes the development of a new ECG tele-monitoring method and system based on the embedded web server. The system consists of ECG recorders with network interface and the embedded web server, internet n...This paper describes the development of a new ECG tele-monitoring method and system based on the embedded web server. The system consists of ECG recorders with network interface and the embedded web server, internet networks and computers, with the system operating on browser/server(B/S) mode. The ECG recorder was designed by ARM9 (S3C2410X) and embedded operating system (Linux). Once the ECG recorder has been connected to the internet network, medical experts can use the internet to access the server of the ECG recorder, monitor ECG signals, and diagnose patients by browsing the dynamic web pages in the embedded web server. The experimental results reveal that the designed system is stable, reliable, and suitable for the use in real-time ECG tele-monitoring for both family and community health care.展开更多
Today, in the field of computer networks, new services have been developed on the Internet or intranets, including the mail server, database management, sounds, videos and the web server itself Apache. The number of s...Today, in the field of computer networks, new services have been developed on the Internet or intranets, including the mail server, database management, sounds, videos and the web server itself Apache. The number of solutions for this server is therefore growing continuously, these services are becoming more and more complex and expensive, without being able to fulfill the needs of the users. The absence of benchmarks for websites with dynamic content is the major obstacle to research in this area. These users place high demands on the speed of access to information on the Internet. This is why the performance of the web server is critically important. Several factors influence performance, such as server execution speed, network saturation on the internet or intranet, increased response time, and throughputs. By measuring these factors, we propose a performance evaluation strategy for servers that allows us to determine the actual performance of different servers in terms of user satisfaction. Furthermore, we identified performance characteristics such as throughput, resource utilization, and response time of a system through measurement and modeling by simulation. Finally, we present a simple queue model of an Apache web server, which reasonably represents the behavior of a saturated web server using the Simulink model in Matlab (Matrix Laboratory) and also incorporates sporadic incoming traffic. We obtain server performance metrics such as average response time and throughput through simulations. Compared to other models, our model is conceptually straightforward. The model has been validated through measurements and simulations during the tests that we conducted.展开更多
讨论了基于M atlab W eb Server的M atlab网络应用开发原理,介绍了M atlab W eb程序处理的一般流程和相关配置文件的详细配置方法,并给出M atlab W eb开发中的两个关键问题:通过输入模块从HTML页面获取输入参数和通过输出模块生成包括...讨论了基于M atlab W eb Server的M atlab网络应用开发原理,介绍了M atlab W eb程序处理的一般流程和相关配置文件的详细配置方法,并给出M atlab W eb开发中的两个关键问题:通过输入模块从HTML页面获取输入参数和通过输出模块生成包括输出数据和图片的HTML文件.利用M atlab W eb Server环境实现了远程控制实验室的控制效果仿真,并以二维图形的输出形式显示仿真结果,为网上控制实验室的建立提供了控制参数选择以及试验结果验证参照.本远程数据处理方法可推广应用到不同的远程数据处理领域,具有很高的推广价值.展开更多
在介绍Matlab Web Server的工作原理的基础上,结合通信原理远程仿真程序的开发实例,详细说明了基于Matlab Web Server的远程仿真系统的关键方法和技巧。仿真系统用户通过Web浏览器在远程输入数据,提交给MATLAB Web Server上的MATLAB运行...在介绍Matlab Web Server的工作原理的基础上,结合通信原理远程仿真程序的开发实例,详细说明了基于Matlab Web Server的远程仿真系统的关键方法和技巧。仿真系统用户通过Web浏览器在远程输入数据,提交给MATLAB Web Server上的MATLAB运行,最后将计算结果和图形直观地显示在浏览器上。展开更多
物理实验数据的处理方法很多,大多数据处理能力有限,而一些采用Matlab开发的数据处理系统又不具备网络功能。通过具体实例研究了基于B/S结构、利用Matlab Web Server处理物理实验数据系统,解决了Web系统开发程序中数值计算能力较差,特...物理实验数据的处理方法很多,大多数据处理能力有限,而一些采用Matlab开发的数据处理系统又不具备网络功能。通过具体实例研究了基于B/S结构、利用Matlab Web Server处理物理实验数据系统,解决了Web系统开发程序中数值计算能力较差,特别是结果可视化难点问题,可以实现跨平台应用。用户只借助Web浏览器就可以在Internet上利用Matlab的强大计算功能实现实验数据的处理工作,可以利用其丰富的图形功能而不需安装Matlab软件。应用程序的安装和维护只需在服务器端进行,方便、安全,具有推广价值。展开更多
基金Education Committee Foundation of Beijing grant number: KM200610005022+1 种基金Young Backbone Teacher Foundation of Beijing grant number: 102KB00845
文摘This paper describes the development of a new ECG tele-monitoring method and system based on the embedded web server. The system consists of ECG recorders with network interface and the embedded web server, internet networks and computers, with the system operating on browser/server(B/S) mode. The ECG recorder was designed by ARM9 (S3C2410X) and embedded operating system (Linux). Once the ECG recorder has been connected to the internet network, medical experts can use the internet to access the server of the ECG recorder, monitor ECG signals, and diagnose patients by browsing the dynamic web pages in the embedded web server. The experimental results reveal that the designed system is stable, reliable, and suitable for the use in real-time ECG tele-monitoring for both family and community health care.
文摘Today, in the field of computer networks, new services have been developed on the Internet or intranets, including the mail server, database management, sounds, videos and the web server itself Apache. The number of solutions for this server is therefore growing continuously, these services are becoming more and more complex and expensive, without being able to fulfill the needs of the users. The absence of benchmarks for websites with dynamic content is the major obstacle to research in this area. These users place high demands on the speed of access to information on the Internet. This is why the performance of the web server is critically important. Several factors influence performance, such as server execution speed, network saturation on the internet or intranet, increased response time, and throughputs. By measuring these factors, we propose a performance evaluation strategy for servers that allows us to determine the actual performance of different servers in terms of user satisfaction. Furthermore, we identified performance characteristics such as throughput, resource utilization, and response time of a system through measurement and modeling by simulation. Finally, we present a simple queue model of an Apache web server, which reasonably represents the behavior of a saturated web server using the Simulink model in Matlab (Matrix Laboratory) and also incorporates sporadic incoming traffic. We obtain server performance metrics such as average response time and throughput through simulations. Compared to other models, our model is conceptually straightforward. The model has been validated through measurements and simulations during the tests that we conducted.
文摘讨论了基于M atlab W eb Server的M atlab网络应用开发原理,介绍了M atlab W eb程序处理的一般流程和相关配置文件的详细配置方法,并给出M atlab W eb开发中的两个关键问题:通过输入模块从HTML页面获取输入参数和通过输出模块生成包括输出数据和图片的HTML文件.利用M atlab W eb Server环境实现了远程控制实验室的控制效果仿真,并以二维图形的输出形式显示仿真结果,为网上控制实验室的建立提供了控制参数选择以及试验结果验证参照.本远程数据处理方法可推广应用到不同的远程数据处理领域,具有很高的推广价值.
文摘在介绍Matlab Web Server的工作原理的基础上,结合通信原理远程仿真程序的开发实例,详细说明了基于Matlab Web Server的远程仿真系统的关键方法和技巧。仿真系统用户通过Web浏览器在远程输入数据,提交给MATLAB Web Server上的MATLAB运行,最后将计算结果和图形直观地显示在浏览器上。
文摘物理实验数据的处理方法很多,大多数据处理能力有限,而一些采用Matlab开发的数据处理系统又不具备网络功能。通过具体实例研究了基于B/S结构、利用Matlab Web Server处理物理实验数据系统,解决了Web系统开发程序中数值计算能力较差,特别是结果可视化难点问题,可以实现跨平台应用。用户只借助Web浏览器就可以在Internet上利用Matlab的强大计算功能实现实验数据的处理工作,可以利用其丰富的图形功能而不需安装Matlab软件。应用程序的安装和维护只需在服务器端进行,方便、安全,具有推广价值。
