The processor which was adopted in the design is atmega128 , this is a low - power cmos 8 - bit microcontroller based on avr enhanced risc architecture . the software adopts the real - time kernel c / os - , the step we do first is the transplanting of the os , the next is to divide the multitask in accordance with the all function of the system and define the pri of each task , the final is to finish the task program 本设计采用了爱特美尔公司的高档avr高速单片机atmega128作为系统的微处理器；同时在软件设计上采用了源代码开放的实时嵌入式多任务操作系统c os - ，将c os -操作系统移植到单片机上，将系统所要实现的功能分成多个任务分别设计任务程序，在操作系统的调度管理下进行系统的运行。
This paper discusses in detail some problems about scanning sound intensify mearusing system of the pc machine from perspectives of both hardware and software . it puts emphasis on analyzing and working out problem of multicenter data sampling in phase fifo amortize arbitrarness waveform generator this paper makes a deep discussion on the computer exteral interface technology which is developing in high speed . it analyses scanning sound intensify mearusing system interface technology on the basis of isa pci , and introduce the promising idea about designing mearusing system of scanning sound intensity by using usb interface 本文针对快速发展的计算机外部接口技术进行了较深入的探讨，分析了基于isa总线、 pci局部总线的扫描声强测试系统接口技术，并提出采用usb接口的声强数据采集与处理系统的设计思想，同时对windows底层进行了详尽的分析，采用vtoolsd 、 vc + + 、 ddk编制的扫描声强测试系统驱动程序，运行在系统核心( 0级环) ，并能与windows很好的协作运行，既能体现windows的多任务操作系统的特点，又保证了数据可靠、实时的采集。
The original design program of counting data acquisition system continue to use the train of thought within dos operating system , but the multitask operating system windows are absolutely distinguished form dos . because the way of system data transmittance are program inquiring , at the same time the acquisition and transmittance process cannot be interrupted . this data transmittance mode within windows will be disturbed by other program ' s interruption and lost the requested data . so we have improved the original design of cd400bx ict data acquisition system . we shift the data transmittance mode from program inquiring to hard interruption , and install fifo cache in front of data channel , in order to guarantee the stability , reliability of data acquisiton and transmittance 由于计数式数据采集系统的原设计方案沿用了以前dos操作系统下的设计思路，而windows操作系统作为多任务操作系统其运行机制和dos有根本的区别。由于系统采用的数据传送方式为程序查询方式，而数据采集和传送的过程都不能被中断。在windows操作系统下这种数据传送方式会因为其他程序的中断造成数据丢失。
Based on distributed fault tolerant technique , high reliable bus technique of avionics and application technique of embedded real - time operation system , a design and an implementation of a distributed fault tolerant computer system which can control and manage aircraft onboard machine - electronic equipment integrated are presented 针对航空机电设备综合控制管理预研项目，利用分布式容错技术、高可靠航空电子总线技术和嵌入式实时多任务操作系统应用技术，设计并实现了一个分布式容错计算机系统。
3 . in allusion to the calculating quantity of the dynamic positioning control system and the demand of real - time , the computer real - time system based on the multibus ii bus which fits to the dynamic positioning control system has been established , and the software of dynamic positioning control system has been developed which is based on the irmx , a real - time and multitask operating system 3 )针对动力定位控制系统的计算量和实时性的要求，建立了以multibus总线为基础的适合于动力定位控制系统计算机实时系统，开发了基于irmx实时多任务操作系统的动力定位控制系统软件。
Based on the developing of ims narcotics detector , this article analyzes the kernel of real time operating system , introduces how to using real time multi - task operating system as object - develop environment , puts forward the analyzing and designing methodologies used in ims narcotics detector embedded software designing which is based on rtos , conceives a data - flow structure model for embedded software design , and provides an effective resolvent for middle or little real time system . it also deals with the arithmetic for peak - location ( mobile - time ) finding and temperature control , and at last summarizes the points for attention when applying rtos 本文主要以离子迁移谱毒品侦查仪的研制为工程背景，重点是剖析实时多任务操作系统内核，介绍如何以已有的实时多任务操作系统为目标系统实现环境，提出基于rtos开发离子迁移谱毒品侦查仪所采用的分析和设计方法，构思了一种基于数据流图结构模型的嵌入式软件设计方法，提供一种设计中、小型实时系统的有效解决方案，并就系统实现中波峰位置(迁移时间)的查找以及温度控制等设计了算法，总结了应用rtos开发应注意的问题。
For the solution to the data losing , we design the data collection system in the cd - 50bg industrial computerized tomography over again , and by adding fifo delay on the card of data acquisition , the quality of data transmission is improved . based on the above , the technology of hardware interrupt is carried out , and at the same time , in order to improve the reliability of interrupt transmission , this design carries out the vxd technology to improve the pri of interrupt response of windows98 multitask operating system 为了解决数据丢失的问题，针对cd - 50bg工业ct机的数据采集系统进行了重新设计，通过在数据采集卡上增加fifo缓存，同时提高数据传输的质量，为此采用了硬件中断传输技术，同时为了提高中断传输的可靠性，本设计采用了vxd技术来提高windows多任务操作系统响应中断的优先级。
It is no longer a standard system develop method . using the tool of real time operating system to develop small real - time system , the disturbance will only destroy one of the processes and other processes will restore it . so using rtos can decline the design difficulty of system , improve the efficiency and dependability of the system 而以实时多任务操作系统为工具来开发小型实时系统，一般干扰只是引起一个进程被破坏，可以用另外的进程对其进行修复，它能在很大程度上降低系统开发难度，提高系统的开发效率和可靠性。
All the work run in order under the management of the c / os - . the study involved in the knowledge of the scm ( singlechip mcu ) , gsm communication , gps positioning , multitask operation system ( c / os - ) . the study can consult some to the remote controlling system based on gsm , the navigation system on gps and the development of c / os - 本研究涉及到单片机、无线通讯、 gps定位、源代码开放的实时嵌入式多任务操作系统c os -等多个方面的知识，这对基于gsm网的远程遥控系统、 gps定位导航系统、以及操作系统在嵌入式系统的应用都有一定的参考价值。
According to the mentioned theories and its specifications from national standards , mcp ( management and control processor ) software is designed in this paper , which based on former version running on available optical node devices , such as mstp and oadm / oxc . it can perform the basic functions defined in ason control panel . it adds the route , signaling and lmp basic function modules to complete building , deleting or refreshing the sc ’ s ( switched connect ) lsp ( label switch path ) 本设计在嵌入式实时多任务操作系统( rtos )基础上对现有的光网络节点设备( mstp和oadm / oxc设备)的网元管理控制器( mcp )的软件进行扩展,增加路由、信令和链路资源管理等功能模块,实现了ason控制平面的基本功能,及波长路由光网络中交换式连接的波长lsp的建立、删除和维护等操作。
