基于嵌入式linux的视频监控系统设计开题报告

基于嵌入式linux的视频监控系统设计开题报告内容摘要：

nd Edition[M]. 美国：Addison Wesley，2005.[8] 郭耸. 基于嵌入式Linux 和Web 服务器的网络视频监控系统[J]. 哈尔滨商业大学学报(自然科学版),2005.[9] 梅飞. 嵌入式Linux 网络视频监控系统设计[J]. 现代电子技术,2007.[10] 谭晓. 嵌入式Linux 平台的网络视频监控系统[J].电子技术，2006.[11] 詹亮. 基于嵌入式Linux的远程视频监控系统研究[J]. 成都纺织高等专科学校学报,2008.[12] 孙江波. 基于嵌入式Linux的视频监控系统设计[J]. 武汉工业学院学报,2006.[13] 孙健. 基于嵌入式Linux 的视频监控系统的设计[J]. 电脑知识与技术,2008.[14] 张倩. 基于嵌入式Linux的视频监控系统[J]. 天津工业大学学报,2007.[15] 郝卫东. 基于Linux的嵌入式网络视频监控系统研究与设计[J]，计算机系统与应用，2008.附录1 外文文献File I/O open FunctionA file is opened or created by calling the open function.include int open(const char *pathname, int oflag, ... /* mode_t mode */ )。 Returns: file descriptor if OK, 1 on errorWe show the third argument as ..., which is the ISO C way to specify that the number and types of the remaining arguments may vary. For this function, the third argument is used only when a new file is being created, as we describe later. We show this argument as a ment in the prototype. The pathname is the name of the file to open or create. This function has a multitude of options, which are specified by the oflag argument. This argument is formed by ORing together one or more of the following constants from the header:O_RDONLY Open for reading only.O_WRONLY Open for writing only.O_RDWR Open for reading and writing. Most implementations define O_RDONLY as 0, O_WRONLY as 1, and O_RDWR as 2, for patibility with older programs. One and only one of these three constants must be specified. The following constants are optional:O_APPENDAppend to the end of file on each write. We describe this option in detail in Section .O_CREATCreate the file if it doesn39。 t exist. This option requires a third argument to the open function, the mode, which specifies the access permission bits of the new file. (When we describe a file39。 s access permission bits in Section , we39。 ll see how to specify the mode and how it can be modified by the umask value of a process.)O_EXCLGenerate an error if O_CREAT is also specified and the file already exists. This test for whether the file already exists and the creation of the file if it doesn39。 t exist is an atomic operation. We describe atomic operations in more detail in Section .O_TRUNCIf the file exists and if it is successfully opened for either writeonly or readwrite, truncate its length to 0.O_NOCTTYIf the pathname refers to a terminal device, do not allocate the device as the controlling terminal for this process. We talk about controlling terminals in Section .O_NONBLOCKIf the pathname refers to a FIFO, a block special file, or a character special file, this option sets the nonblocking mode for both the opening of the file and subsequent I/O. close FunctionAn open file is closed by calling the close function.include int close(int filedes)。 Returns: 0 if OK, 1 on errorClosing a file also releases any record loc。