【正文】 sition loop circuit, pensate the error of pitch of screws in each direction of axes, and pensate the non173。to173。managing software connects each function subroutine to hardware. 216。 display of part program, tool position, system parameters, running status and alarm information, static and dynamic tool path。diagnosis and spot the faults. It is also on duty of synchronizing various procedures. 《 NC Technology 》 E－ mail: .Managing Software216。 Software, which depends on hardware, manages and drives peripheral equipment, such as CRT displayer, keyboard, and munication equipments, etc. ,and performs real time processes ,i. e. ,interruption management and various processors39。 Independent software manages time, tasks, memory, and internal munications, and synchronizes various procedures. 《 NC Technology 》 E－ mail: .Parallel processing 《 NC Technology 》 E－ mail: .Real time processing Interpolation Position control《 NC Technology 》 E－ mail: .Parallel processing216。methods to realize parallel process216。resource173。resource173。sharing technologyvresource173。sharing principle, and makes many procedures use the same resource in turn. 《 NC Technology 》 E－ mail: .Application domain216。apposition parallel process technology is widely and successfully adopted in the hardware design of CNC system, for example, adopting Multi173。On the other hand, resource time173。Real time process means that CNC system can react in time to the requests and events of system equipment(s). 216。There are many types of interruption：216。internal timer interruption216。ware fault interruption,216。CNC system software architecture is the anizing and managing mode of CNC system software, ., tasks dividing scenario, tasks scheduling mechanism, method of information exchanging between tasks, and method of system integration.216。There are two different architectures:216。interruption architecture. 《 NC Technology 》 E－ mail: .Tandem architecture216。 Foreground application is a real time interruption service program, which realizes the real tine functions216。 Foreground and background applications work cooperatively to implement all functions and controls of CNC system. 《 NC Technology 》 E－ mail: .Tandem architecture216。 first, system startup216。 entering the loop executing of background application. During the executing of background application, real time interruption procedures intervene every now and then to implement every real time controls. 《 NC Technology 》 E－ mail: .Tandem architecture《 NC Technology 》 E－ mail: .Interruption architecture216。 The system managing functions are mainly implemented by the munications between interruption service procedures in different levels. 《 NC Technology 》 E－ mail: .Interruption architecture《 NC Technology 》 E－ mail: .All interruption services《 NC Technology 》 E－ mail: .OPEN ARCHITECTURE SYSTEM FOR CNC UNIT 一、開放式數(shù)控系統(tǒng)的產(chǎn)生 隨著科技的發(fā)展和生產(chǎn)的需求，需要一種靈活（功能可組、可擴展、可添加）的開放式數(shù)控系統(tǒng)，打破當前的 “封閉式的 ”數(shù)控系統(tǒng)。開放式數(shù)控系統(tǒng)特點： ■ 系統(tǒng)構(gòu)件（軟件和硬件）具有標準化 (Standardization)與多樣化 ( Diversification)和互換性 Interchangeability)的特征 ■ 允許通過對構(gòu)件的增減來構(gòu)造系統(tǒng)，實現(xiàn)系統(tǒng) “ 積木式 ” 的集成構(gòu)造，應該是可移植的和透明的；《 NC Technology 》 E－ mail: .開放體系結(jié)構(gòu)開放體系結(jié)構(gòu) CNC的優(yōu)點的優(yōu)點216。 標準化的人機界面 ：標準化的編程語言，方便用戶使用，降低了和操作效率直接有關的勞動消耗；《 NC Technology 》 E－ mail: .開放體系結(jié)構(gòu)開放體系結(jié)構(gòu) CNC的優(yōu)點的優(yōu)點216。另外用戶自身的技術(shù)訣竅能方便地融入，創(chuàng)造出自己的名牌產(chǎn)品；216。《 NC Technology 》 E－ mail: .開放式數(shù)控裝置的概念結(jié)構(gòu)硬件配置單元軟件配置單元標準計算機硬件數(shù)控系統(tǒng)基本硬件數(shù)控功能應用程序DOS(WINDOWS)實時多任務操作系統(tǒng) RTM應用程序接口NC構(gòu)件庫《 NC Technology 》 E－ mail: .國內(nèi)外開放式數(shù)控系統(tǒng)的研究進展國內(nèi)外開放式數(shù)控系統(tǒng)的研究進展1. 幾大研究計劃– 美國： NGC(The Next Generation Work173。3） NC內(nèi)核的深層次開放 (① PC+實時硬插件； ② PC+實時軟中斷 )。2）主攻方向是進一步適應高精度、高效率（高速）高自動化加工的 需求。Explain the position and the functions of each ponent of CNC system.216。How many types of CNC software structure are there, and what are their characters and applications? 演講完畢，謝謝觀