Open mode controls systematic current situation, trend and countermeasure

The consequence of market globalization is competition all-time and acuteness, ask manufacturer has stronger market to get used to ability thereby, the market is consequently right treatment of the small lot in suiting, have good and flexible the demand of the production system that already exceeded pair of large and single functions stage by stage with the demand of the production system of versatility. This one trend facilitated the generation of a new idea, namely modular, can reframe, but the soft hardware system of augment, this opens type to control a system namely. This one system not only can ground of fast, economy gets used to new treatment requirement, and offerred for the manufactory its technology and the technology of any tripartite or product have compositive possibility. The idea that 1 abroad studies to dynamic and open mode controls a system already appeared in 80 time. Be in early 1981, american department of defense makes the dependence that controls a system to Japan to reduce armament, began a name to be " next generation controller (NGC) " plan, held water " American country makes scientific center (NCMS) " , its are main the purpose is draft and advance the labor that opens type to control a system about new generation and standard. As the succeeding activity of NGC, american department of defense started OASYS project, its purpose is build and install 8 controller, have a test to its in 6 kinds of different places. Ever since a lot of relevant research plan to be started in succession in world each country, affect the plan such as the OSEC of the OSACA of the bigger OMAC that has the United States, Europe and Japan among them. 1.

The auto industry of United States of plan of 1 　 OMAC develops what come up against in the process to solve oneself a series of problems, mix by Kelaisile, Ford general 3 big Motor Corporation began 1994 the name is " open mode, modular architecture controller (OMAC) " plan. The target of this plan is the investment that reduces control system cost and uphold charge, shorten product development cycle, raise machine tool utilization rate, offer soft hardware module " Plug and Play " weigh compose mechanism with efficient controller, simplify new technology arrives former methodical is compositive, make the system changes easily thereby, catch up with as soon as possible the development of new technology, get used to the change of demand. Its are main motive is to supplier and technical development the organization announces controller user, especially the demand of automobile manufacturing industry, with period the requirement that they understand and understands an user better, can buy the product that satisfies its to ask in the market thereby. Because the member of OMAC is the user of controller, is not development business, this decided its property and destination, also decided its product is changed thereby, practical change pace very cannot fast. In fact American industry group thinks OMAC is a kind of concept, is not a kind of controller or standard. OMAC oneself also realizes this one problem, it is waiting with OSACA stage by stage at present have combination. 1.

2 　 OSACA plans 　 OSACA (Open System Architecture For Control Within Automation System) was 1990 by Europe in all system of business of the business of 22 controller development of system nation, machine tool production, control is compositive business and combination of scientific research orgnaization initiate, got an European Union formally in May 1992 approbate, bring into plan of project of Ⅲ of European Union ESPRIT- . This is OSACA- of the first phase actually Ⅰ , it ended 1994, those who finished OSACA standard and applied guideline make. Its the 2nd period project OSACA- Ⅱ (ESPRIT 9115) ended in April 1996, standard of OSACA of the main according to that finish develops standard, general software module and general OSACA system platform for its system platform, build a 5 axes to create systematic environment, in order to is debugged, all sorts of standards of test and verify, before expanding one phase. The 3rd phase is OSACA IDAS OSACA (Information Dissemination And Awareness Action) began in January 1997, plan last a period of time 18 months, extend the technical gain of OSACA thought and early days job. At the same time to build internationally standard, and undertake osculatory with day, beautiful relevant orgnaization. One of targets of OSACA, it is the general international standard that makes oneself make automation field, reason begins it to will study limits covered whole automation field, threw vast labor power, material resources. 1.

Of Japan of 3 　 OSEC " environment of controller open system (OSEC) " , company of electron of manufacturer of 3 machine tools of plant of machine of cropland of company of You Dongzhi machine, abundant and Mazak company and Japanese IBM, 3 water chestnut and SML information system is established jointly. Its purpose is to build internationally factory automation (FA) control equipment standard. OSEC is mixed with Japan border robot factory automation research center (IROFA) the CNC system that offers consults the model is a foundation, put forward an open architecture. Realized the referenced architecture of IROFA, increased custom-built the function with differentiation product. 2 open mode control preliminary research of the system to be below the support of the unit such as committee of national science foundation, we undertook systematic theory and practice study opening sexual numerical control. 2.

Of system of control of 1 open mode because object-oriented software development technology is integrated,build a model functional abstraction and data abstraction, it is better the ground realized software but sex of expanding, much condition, make software is revised easily, we use object-oriented method to undertake building a model to software of numerical control system, divide an administrative levels to undertake description and implementation to its: Unit of system, control and basic kind. Make CNC software can be assembled, easy patulous. Basic kind it is the result that fine granuality of function of numerical control system discloses, be compositive open system most subsection. Basic kind kind of system that makes software of object-oriented numerical control. Those who have standardization interface is basic kind say for software chip. Controlling unit is by a series of functions relevant basic of kind of composition, the software that fulfils particular function is hypostatic. Control is unit and OK nest. The system is some sort that forms by a series of control unit model software of numerical control system. It can include unit of a certain control or basic kind one or more object. Graph 1 be function of numerical control software is object-oriented differentiate model. Because object-oriented method is direct,go to the physical object map of real world software object, and the data object itself (attribute) enclose with the operation, it is consequently intuitionistic, understand easily. Graph function of software of 1 object-oriented CNC delimits the mark controls systematic software between each part and with the operating system communication and club have through communication subsystem between platform. 2.

Platform of 2 soft hardware considers the rich sex of application software of Windows series platform, the data kind that reachs its to abound and the ability that run 4GB address space, we use WIN32 platform to regard an operating system as platform, hardware platform is used " PC+ adapter gets stuck " structure, add the capacity that handles in real time in WIN32, ground of agile, economy realized real time to control a function. Platform construction sees a picture 2. Graph the subsystem of 2 communication of construction of platform of open numerical control that are based on PC assure CNC application software and PC platform have nothing to do quality. Its structure sees a picture 3. Communication subsystem realizes CNC software through building independent communication buffer the data between its and platform is reached between each subsystem exchange. Graph sketch map of 3 communication subsystem 2.

The chip library that pair of software chip provided to undertake administrative effectively before 3 tools support order runs a system, those who realize software chip browse reach defend the work. OK the keyword such as function, algorithm and name undertakes retrieval to software chip. Its series preconceived idea pursues 4. Graph 4 libraries manage implement the configuration that architecture realized to make system of applied numerical control by software chip, compositive system, the software chip in can supporting an user to use a warehouse or the software unit that any tripartite offers make applied system. Process of the tool of the tool of unit function configuration that it makes control unit by software chip combination, applied frame configuration that by control unit combination makes CNC application software, application is generated and compile the composition such as join tool, see a picture 5. Unit configuration and the choice of frame configuration tool according to the user, generate unit to configure file and applied configuration file respectively, generate a tool to generate CNC software code according to configuring a file by application. Generated code is open to the user, the code that the user can become according to circumstance opposite undertakes modification. Use compositive tool, generate open sex OK and neatly, efficiently to control a system. Graph the software chip that structure of compositive environment hierarchy number uses 5 software chip to already was developed at present and compositive tool, can generate 2 coordinate lathe automatically to control a system. We are developing the applied systems analysis that the graph changes, compositive tool. The technologies of 3 proposal numerical control that develop our country quickly to open type to control a system to consider are the foundation of production technology, it is to improve product quality and performance, reduce product cost, shorten the hinge that produces cycle. 3.

1 current situation and the home before asking a theme already systems of some open sex control have 4 kinds: China in Ⅰ , China Ⅰ , spaceflight Ⅰ with blue sky Ⅰ model. Open control system of home has an advantage each, but in light of the tendency that develops from numerical control system, they still do not have open sex to control essential feature of the system, still have the place that a lot of need improve. Above all, the concept of system of open mode control is unsharpness, did not solve the platform problem of open control system. The architecture that each system place uses is abhorrent, still be to become a system oneself, mutual between devoid compatibility and interchangeability, and to architecture elaborate be confined to is specific implementation layer, did not raise theory, abstract administrative levels comes up, consequently each system soft hardware is not had can transplant gender and sex of each other operation. Next, did not make full use of to wait for new-style operating system like Windows, UNIX, OS/2. Software develops thought and technology to lag behind, be in from beginning to end even the level under structured programming. Did not make full use of the new theory in the software project such as put sb in a very important position of object-oriented, software, new technology, and these keys that realize open sex to control a system just about are in. In addition, of the product upgrade, newer, revise and maintenance still relies on manufacturer home, did not provide corresponding development tool and environment, user cannot oneself or the thought of any tripartite or product are blended in go in the system. From tell on the whole, the situation that our country manufacturing industry faces is as follows: (Manufacturing industry of 1) our country controls a system to having huge demand and manufacturing industry of dynamical our country and manufacturing industry organization to be faced with to opening type to make adjust, the formidable task that transform and optimizes, because this is existing to consider to include to open the new generation that the gender controls a system inside with development,produce vast power of the technology; The product is backward, technical level is low, information content is little, change slow, already became the bottleneck that restricts development of our country manufacturing industry, because this is existing to develop open sex to create the demand that controls a system; In addition the standard that because our country each scientific research produces an unit to be used severally,differs, formed all sorts of different closed system: Different communication agreement and data structure, make information exchange cannot come true between different equipment, the transmission of information cannot come true between different software, data cannot come true between different database share, consequently implementation opens type to create the urgent need that controls a system. (The production of 2) our country and market go to farther confluence in broad international market go facing intense market competition, want to make our product occupies position in the world, must increase the technical content of the product and function quota as soon as possible, conform with international. Numerical control system, no matter be its,regard commodity as itself, still serve as the process instrumentation of commodity, ask its are system of control of an open mode. 3.

Each research of the 2 proposal abroad that begin our country to open type to control a system to consider plans, its are essential the purpose is to enlarge oneself product to hold share in international market place, or consolidate at least already some market position. Be like European OSACA, target the end competitor Japan directly, its purpose is to make production system supplier of Europe in the market crushing competitor. With respect to product of system of our country numerical control current level is told, if do not take decisive, significant step, be in not only in the future international market, be in namely home market, also will not have the ground of base oneself upon. Be weighed by OSEC the research that the 3rd times for manufacturing industry open mode of revolution controls a system, the development that is industry of our country numerical control brought new turning point. We should capture this one big inning, the open sex that be begun quickly and deepens our country dominates systematic research, join the real case of our country, make the near future and in long-term goal and plan, on the base that establishs open sex to control systematic standard, the new generation that rolls out our country as soon as possible opens a gender to control systematic product. Any technologies are not isolated, the technology gets of system of structure of base of economy, culture, technology, society, management and personnel quality restrict. Begin open sex to control a system to consider, should draw lessons from but the experience that cannot copy abroad, must hardheaded, recognize situation, set out from the circumstance of the national condition of our country and enterprise, seek economy, efficient development way. We think, make automation according to our country " 15 " in mixing, long-term development plans, face manufacturing industry, the research that is based on the open type that the number makes to control a system develops extremely urgent, never overlook, must from realise in the thought, begin our country to open type to control the necessity that the system studies and pressing sex instantly. Put forward as follows to suggest for this: (1) must establish systematic thought, concern a branch to take the lead by the country for ultimate goal with systematic target, by scientific research, production the unit attends, make those who make clear is close in course of strategy of long-term development target, development, executive plan, technology and guiding ideology. The country should support open sex to control a system to consider centrally, between unit of each enterprise, scientific research, mutual and harmonious, complement each other, fight in coordination, avoid to repeat invest and repeat development. Put in in capital on, use borrow, borrow, the method that dials photograph union, establish effective competitive drive mechanism. (2) faces abroad's driving competitor, take the way that develops jointly, the actual strength that enhances competition from at present foreign circumstance looks, from the OSACA of American OMAC, Europe, to Japanese OSEC, notting have is not to cross the industry, combination that crosses a branch. Rise jointly, ability makes full use of resource of existing technology, economy, manpower, material resources, produce integral advantage, quicken development pace. (3) is in team textural, the diversity of the member that assure to attend not only should include system of machine tool, control to wait for manufacturing company and its user, still should include orgnaization of college, scientific research; Not only should have mechanical production industry, due still the industry such as the computer, IT attends, so that make full use of the latest technology of relevant domain and achievement, can get used to its to did not develop, make sure system of open sex control is effective and feasible thereby. Build special orgnaization, study the current situation of the relevant plan such as foreign OMAC, OSACA, OSEC, achievement and issue seriously, reach future to develop tendency, so that make full use of the achievement of others, reduce our research time and cost. If robot association of Japan is medium, an orgnaization undertakes technically study to OSACA. (The research that 4) strengthens software dependability theory, software to check method and standard and systematic dependability to devise a method at the same time even cogent the research that strengthens open sex to control a system to develop a tool, below the case that providing convenient and friendly tool support only, true benefit from benefit from opens final user ability the gender controls a system. (5) is with the market oriented, forecast prospect of domestic and international market adequately, build a technology to extend a system, accelerate scientific research gain to productivity change the base that can establishing an open mode to control systematic standard to go up, roll out system of numerical control of economy open sex first, can examine in the market on one hand the validity of its technology, academic program, effectiveness, can accumulate fund on the other hand, support next development, research works. System of 4 last words is opener, the technology that means its place to need consideration and processing and blame technology issue are more. The platform construction of OSACA includes the gender is big, have stronger adaptability, but its development workload is unusually big, because this can be overall conception only at present, cent pace is carried out, short-term inside achieve the support that its handle platform to much hard. Of OSEC " PC+ adapter gets stuck " plan, get neatly much, and can make full use of advantage of the price of the PC, resource, technology, to our country, perhaps be a shortcut. Begin open sex to dominate systematic research, can't afford to lose the opportunity, we must hold this one good luck and challenge with sober brains and quick action. It is especially in current and complex international environment, abroad still has the circumstance of certain technology block and limitation to fall to our country, the force that relies on ourselves only will solve. We believe, chinese the capable, effort that also ambition passes him, achieve our goal. CNC Milling