联网嵌入式系统可用性检测机制的研究与实现
发布时间：2018-10-13 11:38
【摘要】：随着嵌入式系统技术与网络技术相结合的信息物理融合系统(Cyber-physical Systems，CPS)应用逐渐普及。存在大量的不稳定因素，如硬件部件的不稳定性、人工软件模块的不稳定性以及外部应用环境的大量干扰，导致嵌入式系统不能稳定的工作。因此，研究增强联网嵌入式系统稳定性的可用性检测机制是很有必要的。 为了增强联网嵌入式系统的稳定性，研究和实现了嵌入式系统可用性检测机制。该机制分成嵌入式系统的自我检测和远程检测，其中包括使用基于ICMP协议检测技术实现网络连接状态的检测；使用基于监视定时器的检测技术实现线程运行状态的检测；使用系统性能异常检测技术实现自身状态检测。在机制的实现方法中，采用了内核态检测数据获取方案和多点阈值判断方法，提高了效率和精确度。此外，在基于内核态检测数据获取方案基础上，实现了基于CIM/WBEM（通用信息模型/基于万维网的企业管理）架构的远程检测模块，使得远程检测模块具有更好的扩展性，，而且不依赖于数据库。 通过模拟的故障事件，对基于ICMP协议的检测技术和基于监视定时器的检测技术进行了验证；通过实验验证了基于内核态检测数据获取的系统性能异常检测方案的可行性，并对多点阈值判断方法进行定量分析，说明其准确性；通过CIM客户端查看嵌入式系统中的内存信息，验证了远程检测方案的可行性。
[Abstract]:With the integration of embedded system technology and network technology, the application of information physics fusion system (Cyber-physical Systems,CPS) is becoming more and more popular. There are a lot of unstable factors, such as the instability of hardware components, the instability of artificial software module and the interference of external application environment, which lead to the unstable work of embedded system. Therefore, it is necessary to study the usability detection mechanism to enhance the stability of networked embedded systems. In order to enhance the stability of networked embedded system, the usability detection mechanism of embedded system is studied and implemented. The mechanism is divided into self-detection and remote detection of embedded system, including the detection of network connection status based on ICMP protocol, the detection technology based on monitoring timer to detect the state of thread running. The system performance anomaly detection technique is used to realize its own state detection. In order to improve the efficiency and accuracy, the kernel detection data acquisition scheme and the multi-point threshold method are used in the implementation of the mechanism. In addition, a remote detection module based on CIM/WBEM (General Information Model / Enterprise Management based on World wide Web) architecture is implemented on the basis of the data acquisition scheme based on kernel detection, which makes the remote detection module more extensible. And not dependent on the database. Through the simulation of fault events, the detection technology based on ICMP protocol and the detection technology based on monitor timer are verified, and the feasibility of the system performance anomaly detection scheme based on kernel detection data acquisition is verified by experiments. The method of multi-point threshold judgment is quantitatively analyzed to show its accuracy, and the feasibility of remote detection scheme is verified by CIM client viewing the memory information in embedded system.
【学位授予单位】：南京邮电大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP368.1;TP202
本文编号：2268480
[Abstract]:With the integration of embedded system technology and network technology, the application of information physics fusion system (Cyber-physical Systems,CPS) is becoming more and more popular. There are a lot of unstable factors, such as the instability of hardware components, the instability of artificial software module and the interference of external application environment, which lead to the unstable work of embedded system. Therefore, it is necessary to study the usability detection mechanism to enhance the stability of networked embedded systems. In order to enhance the stability of networked embedded system, the usability detection mechanism of embedded system is studied and implemented. The mechanism is divided into self-detection and remote detection of embedded system, including the detection of network connection status based on ICMP protocol, the detection technology based on monitoring timer to detect the state of thread running. The system performance anomaly detection technique is used to realize its own state detection. In order to improve the efficiency and accuracy, the kernel detection data acquisition scheme and the multi-point threshold method are used in the implementation of the mechanism. In addition, a remote detection module based on CIM/WBEM (General Information Model / Enterprise Management based on World wide Web) architecture is implemented on the basis of the data acquisition scheme based on kernel detection, which makes the remote detection module more extensible. And not dependent on the database. Through the simulation of fault events, the detection technology based on ICMP protocol and the detection technology based on monitor timer are verified, and the feasibility of the system performance anomaly detection scheme based on kernel detection data acquisition is verified by experiments. The method of multi-point threshold judgment is quantitatively analyzed to show its accuracy, and the feasibility of remote detection scheme is verified by CIM client viewing the memory information in embedded system.
【学位授予单位】：南京邮电大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP368.1;TP202
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