Then it sets up the way that carry out map showing in embedded condition , landform analyzing and gps data receiving . in the end , the foreground is analyzed and the points that need to improve is brought forward 论文首先分析嵌入式地理信息系统的研究现状、技术背景、特点及应用，为嵌入式地理信息系统( egis )的开发提供技术基础；其次提出了实现egis中的嵌入式平台环境下的地图显示、地形分析和gps数据接收的方法；最后分析了系统的应用前景和需要改进的地方。
In this paper , we present a approach to realize the development based on platform of embedded systems , and apply it in project successfully . in the first chapter , this paper introduce both the history and the actuality of the embedded systems , as well as it ' s definition 本文针对这个问题提出了一套完整的嵌入式平台化开发方法并成功的运用到实践中，同时对嵌入式下软件开发和硬件开发的关系模式提出了新的思路。第一章绪论介绍了嵌入式系统的历史和开发现状，引出本文主要内容。
Then , put forward the design policy for the lower - layer of embed linux browser . considering running on embed system platform , each blocking i / o operation has been encapsulated to be independent module by using “ request queue - asynchronous callback ” mechanism implemented from command processor design pattern 针对嵌入式平台的特点,利用根据命令处理器设计模式实现的“请求队列-异步回调”机制,将各个引起延迟的网络i / o操作模块封装隔离成可以异步回调操作的模块。
These requirements not only require the debugger to provide the efficient , easy - to - use and powerful debugging environment to the end user , also require the debugger to support some high - tier features , such as optimized code debugger , etc . this thesis describes the concept of debugger design and implementation 这些需求不仅要求调试器提供给用户高效,直观,易用的调试功能和环境,还需要调试器提供优化代码调试等高级调试功能。另外,目前各种新的嵌入式平台层出不穷,与其配套的调试开发环境的需求随之增加。
It has characteristics of high performace , plentiful interfaces and convenient transplantation and extension . and also we adopt embedded technology as the platform of the robot owing to its high real - time ability , high reliability and rich resourses . thus the application of robot technology becomes the seconday development on the embedded platform so that the developing period is cut down and resource is saved 所以本文提出研究利用高性能的32位嵌入式arm处理器作为整个机器人嵌入式系统的控制核心,运用嵌入式处理器的高性能、接口丰富、方便移植与扩展等优点,并且利用嵌入式操作系统的实时性强、可靠性高、资源丰富等优势,将嵌入式技术作为服务机器人的开发平台,使机器人技术的应用能够变为在嵌入式平台上的二次开发,从而缩短开发周期、并且节约资源。
All these characteristics make the design of embedded operating systems different and even more difficult compared with the general operating systems . in this thesis , after investigating other embedded operating systems , a linux based embedded operating systems ( legs ) is proposed . and it is implemented on intel ? strongarm ? embedded platform , which can support various embedded devices of the platform and satisfy the requirements of most embedded applications 本文根据嵌入式应用的需求设计了一个基于linux的嵌入式操作系统( linuxbasedembeddedoperatingsystem ，简称leos ) ，使之可以满足多数嵌入式应用在功能和效率上的需求，并在intel公司的strongarm嵌入式平台上实现了leos 。
In aspect of hardware , the technology of cpld based on eda achieves the of embedded system . in aspect of software , the use of bios accomplishes the compatibility of pc / dos , especially , much works have been made to implement standard output service with lcd instead of vga on pc . in aspect of application , the paper focuses on how to construct an application on such an embedded system 硬件方面，运用基于eda的cpld相关技术，实现嵌入式系统的灵活性；软件方面，与硬件结合，着重于如何利用设计bios来实现与pc的兼容性，尤其是在把矩阵键盘和lcd替代pc的标准输入输出设备作为本嵌入式系统的标准输入输出设备方面，做了比较详细的工作；最后，基于上述的嵌入式平台，本文做了一个具有实际应用价值的案例，作为演示，说明如何快速构建具体的嵌入式应用方案。
In the procedure of process implementation , the paper introduced the main ideas and methods for developing the system in 3 steps : the communication between the virtual laboratory system and the embedded platform , the local access to the application server , and the remote access via internet 随后,在系统的具体实现步骤上,本文分别从虚拟实验室与嵌入式平台的通信、虚拟实验项目在本地端的实现、虚拟实验项目的网络发布三个方面介绍了构造网络化虚拟实验室的主要思路与方法。
A general method is presented in this paper for developing a web - based virtual laboratory , which is supported by laboratory special investing & constructing fund . to implement this objective , the existing embedded platform is introduced in this system . besides , several technologies are adopted , such as virtual instrument 本课题的主要工作是在实验室专项投资建设基金项目的支持下,利用嵌入式平台的硬件环境,基于虚拟仪器等技术,设计并实现了一个基于web的测试技术虚拟实验室。
Thirdly , the hole scanners at present are in pc and they are n ' t easy to take . at last , the passsingnet hole scanners can n ' t scan through the different net segment . 。 this paper settles the insecurity and incommodity of net scanners in the pc . at the same time , we imploder an embedded operating system independently on the base of linux , discuss the feasibility of embedded net hole scanner and mend shortages of hole scanner at present 本论文主要是为了解决目前在pc机上的漏洞扫描工具的不便利性和不安全性，在linux的基础上自主开发了一套嵌入式操作系统，并探讨了在嵌入式平台上实现漏洞扫描评估工具的可行性，并对目前漏洞扫描工具的不足加以改进。
