CN1365048A - Open structure digital control system with self-guide secondary development simulation platform - Google Patents
Open structure digital control system with self-guide secondary development simulation platform Download PDFInfo
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Abstract
The open structure digital control system includes the digital control system comprising CPU, general control and user interactive chip, memory chip, power supply and clock circuit and interface circuit connected by the system bus in the mainboard; one secondary development simulation chip, one simulation development memory chip, one secondary development memory chip, one secondary development platform and one secondary development interface; and secondary development control software cured inside the secondary development simulation chip. The present invention is suitable for uses to develop and expand new functions for meeting various requirement in new product manufacturing during the production process to product. The present invention has the features of low cost, easy operation and control, being practical, etc.
Description
Technical field
The invention belongs to the regulating and controlling class, relate in particular to the control of the open structure digital control system of computer guiding type secondary development simulation platform.
Background technology
The today's numerical control system has two kinds of patterns substantially, and a kind of is the digital control system of the enclosed construction of conventional dedicated monolithic processor pattern, and a kind of is the current digital control system in open type based on industrial computer and motion control mode card that is in development.
It is hardware core that the digital control system of traditional mode adopts special-purpose single-chip microcomputer, enclosed architecture has shielded all systems technology details, only provide function fixing external general controls interface to the user, the user must select the peripheral driver equipment of coupling to realize the structure of numerically-controlled machine by system requirements.In case and system finalizes the design, function and performance constraint that the user is just fixed by system.Owing to do not offer user's second development interface specially, special secondary development environment is not provided yet, the user can't carry out the improvement of original function and the increase of new function.Make digital control system can't adapt to the requirement of the production and processing technology of continuous variation.
On software configuration, closed digital control system mostly adopts the assembly language that matches with central processing unit to come construction system, the software environment of the very difficult framework chip structure of this language and very strong to hardware-dependence, be difficult to transplanted and secondary development, the extremely difficult fatal reason that realizes opening of this traditional mode digital control system.And the current digital control system in open type that is in positive development, basically all adopted the supporting motion control card tactic pattern of industrial computer to realize the numerical control of lathe is controlled, the opening of this pattern digital control system mainly is the opening flag of having used the current PC computing machine, its essence is a plate card type control application of PC computing machine, all exists significant limitation on structure and performance.There is a following difficult problem:
1, there is not definition independently to be suitable for the open architecture of digital control processing control.Because what adopt is universal computer platform, the opening that is possessed all is the intrinsic opening flag of computing machine itself, is not aimed at that the digital control processing characteristics define, and the cost of this reference mode is exactly the structural system framework of computing machine of will placing one's entire reliance upon.The PC computing machine is as a general-purpose platform, all not to the consideration of digital control processing singularity, therefore can not fundamentally build digital control platform on the design of bottom hardware and the operating system environment.
2, the digital control system in open type of industrial computer pattern can not well guarantee real-time and reliability.The PC computing machine in when operation owing to adopt general operating system, taken very big system resource, with the irrelevant task of the digital control processing more work share of multisystem that may account for, they are disturbing the timely response of system to in-situ processing, reduced the processing speed of system to important control event, and having increased the expense that system moves, these all can cause the instability of system.
3, the cost of industrial computer pattern digital control system is too high.The computing machine that can satisfy the digital control processing rate request needs to invest thousands of units at least and mixes motion control card again, makes that cost is difficult to reduce.
4, control system is not owing to there is independently open architecture system, must rely on the structural system and the software frame of PC computing machine, therefore be doomed and can only embody secondary development with single function library form, this requires a domestic consumer or a machine-tool operator will possess good programming basis and computer software and hardware knowledge.And this is undoubtedly too many cost for general improved user, sometimes loses more than gain especially.And only provide function library to seem not enough for advanced level user.In addition, the special friendly platform of current development tool neither one, also neither one is suitable for the leading type flow process of numerical control functional development, help user's functional definition, the structural advantage that this can not fully provide digital control system in open type on the one hand for the user can make the stability that does not have experience or can take an unnecessary way even destroy system to the not really clear and definite user of required function on the other hand again.
Summary of the invention
The purpose of this invention is to provide a kind of a kind of open structure digital control system of open structure digital control system, to solve an above-mentioned deficiency and a difficult problem with self-guide secondary development simulation platform with self-guide secondary development simulation platform.
The object of the present invention is achieved like this, a kind of open structure digital control system with self-guide secondary development simulation platform, be included on the mainboard by system bus and the digital control system that central microprocessor, general controls and user interactions chip, memory chip, power supply clock circuit, interface circuit are connected, the invention reside in it and also comprise a secondary development simulation chip, a simulating developer storage chip, a secondary development storage chip, a secondary developing platform and a second development interface.
Wherein,
Described secondary development simulation chip, it links to each other with system bus, the code that is used for that the secondary development simulation interface is transmitted carry out simulation process control, manage and be cured to the secondary development storage chip.
Described simulating developer storage chip, it is connected with system bus, and the operation and the storage space of program is provided when being used for the simulation process of secondary development code.
Described secondary development storage chip, it is connected with system bus, is used for the secondary development code of storage emulation success.
Described second development interface, it links to each other with system bus, is used to receive the secondary development code that download cable sends, and after pre-service, sends in the simulating developer chip.
Described secondary developing platform, secondary development simulation software by PC computing machine and Qi Nei curing, and download cable forms, and the parallel port line by computing machine is connected with digital control system secondary development simulation interface via download cable, is used for the new function development and the emulation of open structure digital control system.
Described secondary development simulation software comprises the following step at least:
Judge development types:
One, if the secondary development of general utility functions type,
Then judge the interactive function that exploitation is new,
If, call the interactive function performance history, link interactive function function library is pressed specified format and grammer input parameter, description and necessary code statement, and new functional reliability is carried out reasonableness test.
If not, then judge the control function that exploitation is new,
If, call the control function performance history, link control function function library is pressed specified format and grammer input parameter, description and necessary code statement, and new functional reliability is carried out reasonableness test.
If not, then call the specific function performance history, link the specific function function library, press specified format and grammer input parameter, description and necessary code statement, to new functional reliability reasonableness test.
Two, if the secondary development of motion control type:
Then judge the interpolation algorithm that exploitation is new,
If, calling the interpolation algorithm performance history, specified format and grammer input parameter, description and necessary code statement are pressed in link interpolation algorithm storehouse, and new functional reliability is carried out reasonableness test.
If not, then judge the speed control that exploitation is new,
If, calling the speed control performance history, specified format and grammer input parameter, description and necessary code statement are pressed in link speed control function storehouse, and new functional reliability is carried out reasonableness test.
If not, call peculair motion control performance history, specified format and grammer input parameter, description and necessary code statement are pressed in link respective function storehouse, and new functional reliability is carried out reasonableness test.
Three, if the secondary development of system strategy type:
Then judge exploitation monitoring and diagnosis strategy,
If, calling the monitoring and diagnosis performance history, specified format and grammer input parameter, description and necessary code statement are pressed in link monitoring strategies storehouse, and new functional reliability is carried out reasonableness test.
If not, then judge the exploitation network management strategy,
If, calling the network management performance history, specified format and grammer input parameter, description and necessary code statement are pressed in linked network operating strategy storehouse, and new functional reliability is carried out reasonableness test.
If not, then call special strategy Development process, link special policy library, press specified format and grammer input parameter, description and necessary code statement, new functional reliability is carried out reasonableness test.
Four, above-mentioned new functional reliability is carried out reasonableness test:
If disqualified upon inspection provides suggestion for revision, forward the judgement development types to.
If be up to the standards, then carry out code compile, by computer parallel port and download cable input digital control system or storage.
Because the present invention has adopted above technical scheme, thereby has:
1, the software and hardware open architecture system that independently is suitable for digital control processing.Adopt the integral module structure of FPGA programmable chip to set up the bottom hardware framework from system hardware, be different from the design of traditional digital control system plate card type hardware configuration fully.Each functional chip is connected with the communication of secondary development simulation chip, finishes user's secondary development code and writes each functional chip again, thereby realize realizing from system's bottom hardware configuration open.Adopt when embedded practical operation to make system from software, adopt OO software design approach, systemic-function is realized by six clear and definite chip objects of interface, when user's development interface is carried out secondary development, each level is realized that details shields, effectively guaranteed the reliable and stable of system.
2, the bootstrap type and possess self-checking capability secondary developing platform.Be directed to the development tool of different class digital control systems and different levels user's request combination different modes, adopt the mode of development process guide to guide the user to finish the secondary development process based on the knowledge professional storehouse, adopting the form of development template is the formative secondary development sample of customization.Adopt the control strategy of system reliability self check to guarantee that user's exploitation code can not have a negative impact to overall performance.
Description of drawings
Fig. 1 is a kind of formation synoptic diagram with open structure digital control system of self-guide secondary development simulation platform of the present invention;
Fig. 2 is a kind of software block diagram with open structure digital control system of self-guide secondary development simulation platform of the present invention;
Fig. 3 is a kind of control program schematic flow sheet with open structure digital control system of self-guide secondary development simulation platform of the present invention.
Among the figure:
1, central microprocessor 1-1 high-speed dsp process chip
2, general controls and interactive maintenance chip 3, storage chip
4, system works ROM storage chip 5, data storage FIASH-ROM storage chip
6, simulating developer RAM storage chip 7, secondary development FIASH-ROM storage chip
8, data resource management chip 9, secondary development simulation control chip
10, based on digital control system secondary opening and developing platform 11, general controls and the user interactions interface of PC
12, secondary development simulation interface 13, system bus
14, power supply clock circuit
Embodiment
Below in conjunction with accompanying drawing enforcement of the present invention is explained as follows:
In Fig. 1, it is connected central microprocessor 1, high-speed dsp process chip 1-1, general controls and interactive maintenance chip 2, storage chip 3, electric current clock circuit 14, general controls and user interactions interface 11, data resource management chip 8, secondary development simulation control chip 9, secondary development simulation interface 12 with system bus 13 respectively.Digital control system secondary opening and developing platform 10 based on PC is connected with secondary development simulation interface 12 by bus.Storage chip 3 is made up of system works ROM storage chip 4, data storage FIASH-ROM storage chip 5, simulating developer RAM storage chip 6 and secondary development FIASH-ROM storage chip.
Wherein,
1, central microprocessor 1, be used for the control computing of entire system and the coordination of functional performance, the microcontroller chip can adopt 32 high-performance embedded microcontroller chips, under the working environment of supporting with it embedded real-time operating system, mainly finishes entire system control and coordination.Wherein, central microprocessor 1 also can be made up of 32 high-performance embedded microcontroller chips and high-speed dsp chip, has the track of finishing computing, the function that real-times such as data acquisition are very strong.
2, high-speed dsp process chip 1-1 is used for the coprocessor of microcontroller 1, also can work independently in the realization of large-scale data processing capacity.
3, general controls and interactive maintenance chip 2 are used for finishing on the one hand the calculating and the control of the movement locus relevant with machine tooling, finish the processing procedure relevant with user's input and output on the other hand.General controls and user interactions chip 2 are connected with other chip with central microprocessor 1 by system bus 13, directly control general controls and user interactions interface 5, produce various output quantities and handle that this interface transmits input quantity.
4, storage chip 3, storage chip mainly are connected with each functional chip of central microprocessor 1 and other by system bus 13 by each storage chip in its four storage chips of system works ROM4, data storage Flash_Rom5, simulating developer RAM6 and secondary development Flash_Rom7.Content in the storage chip is read out to carry out related management control, is deposited in each chip and manage the object information of controlling.
5, secondary development FIASH-ROM storage chip 7, secondary development Flash_Rom7 are used to deposit the new system program that possesses user's what's new and characteristics after the user carries out secondary development.This chip is write by digital control system secondary opening and developing platform 10 serials based on PC by secondary development simulation interface 12.
6, simulating developer RAM storage chip 5 is used for receiving the compiled code that sends from the secondary development simulation interface, carries out new function simulating debugging for system.This chip by secondary development simulation interface 12 by based on digital control system secondary opening and developing platform 10 download code of PC and the operation of packing into.
7, data storage FIASH-ROM storage chip 5, data storage Flash_Rom: be used to store from processing site with from the data and the control information of telecommunication network, readable writing is the database that system carries out resource sharing and self decision-making diagnosis.This chip is directly by 8 controls of data information management chip.
8, system works ROM storage chip 4, system works ROM are used to deposit basic system management control program, carry out the basic running of whole digital control system, reach program Solidification in storage chip, read-only, be the system program of digital control system acquiescence, can write in advance.
9, the data resource management chip 8, are used to the various data messages in other chip data information Flash_Rom chip, also are used to receive and store simultaneously the various data messages that other chip transmits, and increase the resource sharing of system works.Data message chip 8 adopts intelligentized Classification Management mechanism, utilizes the data sync algorithm to guarantee the automatic renewal of storing data information and the self-teaching of knowledge base.Data information management chip 8 is connected with central microprocessor 1 and other chip by system bus 13, directly is responsible for the storage to data message Flash_Rom.
10, secondary development simulation control chip 9 is used to handle the user's exploitation code that is imported into by secondary development simulation interface 12, and code is gone into simulating developer RAM chip 6 admittedly, and new function simulating is tested.Simultaneously and finish monitoring to simulation process, test and with the communication interaction of secondary based on the digital control system secondary opening and developing platform 10 of PC.With user's exploitation code of own emulation success, deposit in the secondary development storage Flash_Rom chip 7 at last, constitute new digital control system.
11, based on the digital control system secondary opening and developing platform 10 of PC, secondary developing platform is mainly by general PC computing machine, download cable, and secondary development simulation software is formed.
Its multi-purpose computer mainly provides the interface between software and hardware environment of secondary development running software and debugging as the secondary development application platform.
Its download cable is as the communication connected mode between secondary developing platform and the digital control system body, and the code of being responsible for compile secondary development is afterwards imported in the emulation RAM chip 9 in the body of digital control system into, and feeds back to artificial intelligence for secondary developing platform.
Its secondary development simulation software is as the collection code compiling, and function library is called, the code compile link, and the functional simulation debugging is the Integrated Development Environment of one, offers the means and the implementation of user's secondary development.
The secondary development simulation running software drives the parallel interface of computing machine in the WINDOWS of universal PC computing machine operating environment, the code after will compiling via download cable is transferred to the secondary simulating developer interface 12 of digital control system body.
12, general controls and user interactions interface 11 are used for realizing on the one hand and lathe being connected partly, comprise the required all kinds of analog quantitys of lathe work and the control of digital quantity, guarantee that lathe finishes working motion.Realize that on the other hand the user to the control of system and lathe and mutual, comprises to operation push-button display screen, the response of machine operation panel and control.
13, the secondary development simulation interface 12, secondary development simulation interface 12 connects with parallel port based on the computing machine in the digital control system secondary opening and developing platform 10 of PC by download cable, receive the compiled code that secondary development software transmits, send into simulating developer RAM chip 9 after the processing, be used to realize emulation secondary development function.
Above-mentioned each class interface by system bus 13 and digital control system central microprocessor 1 and each functional chip between set up and get in touch, give each functional chip of system with the information feedback in the external world, and the command information of system sent to the external control object.
14, system bus 13, can adopt 32 bit data bus, 24 bit address buses and 30 control buss to form, and mainly are responsible for the connection between each functional chip, interface, storage chip and the central microprocessor 1.Be used to transmit data, address and control signal.
15, the power supply clock circuit 14, are used for each chip of whole digital control system, interface required voltage and frequency of operation automatic control and adjusting.
In Fig. 2, the composition of system software of the present invention:
The core of system software is an embedded real-time operating system, mainly is responsible for the coordinated operation of each functional object and the distribution of management control task; Motion control object in its software (speed, precision, position, compensation, interpolation), exploitation simulation object (compiling, emulation, state switch), information management object (information categorization, storage), user interactions object (keyboard, demonstration, serial communication) all adopts OO chip design philosophy, and is finished the repertoire of system by four controlling object with standalone feature.And each object all can have corresponding bottom hardware chip and support as realizing in hardware block diagram.The basic function of each object all shows in Fig. 2.
The principle of work of system software of the present invention is:
Behind the system boot, at first move real time operating system, finish the initialization and the necessary testing of system.Start the processing procedure of user interactions object then, monitor input and output extraneous and system, and finish corresponding function according to the processing procedure of monitoring result activation corresponding object chip.The processing procedure of all objects is all carried out under the coordination of real time operating system.
In Fig. 3, described secondary development simulation software includes the following step at least:
Judge development types, (step 101):
If the secondary development of general utility functions type, (step 102),
Then judge the interactive function that exploitation is new, (step 103),
If, call the interactive function performance history, link interactive function function library, (step 104) presses specified format and grammer input parameter, description and necessary code statement, and (step 120) carries out reasonableness test, (step 121) to new functional reliability.
If not, then judge the control function that exploitation is new, (step 105),
If, call the control function performance history, link control function function library, (step 106) presses specified format and grammer input parameter, description and necessary code statement, and (step 120) carries out reasonableness test, (step 121) to new functional reliability.
If not, then call the specific function performance history, link the specific function function library, (step 107) presses specified format and grammer input parameter, description and necessary code statement, and (step 120) is to new functional reliability reasonableness test, (121).
If the secondary development of motion control type, (step 108),
Then judge the interpolation algorithm that exploitation is new, (step 109),
If, call the interpolation algorithm performance history, link interpolation algorithm storehouse, (step 110) presses specified format and grammer input parameter, description and necessary code statement, and (step 120) carries out reasonableness test, (step 121) to new functional reliability.
If not, then judge the speed control that exploitation is new, (step 111),
If, call the speed control performance history, link speed control function storehouse, (step 112) presses specified format and grammer input parameter, description and necessary code statement, and (step 120) carries out reasonableness test, (step 121) to new functional reliability.
If not, call peculair motion control performance history, link respective function storehouse, (step 113) presses specified format and grammer input parameter, description and necessary code statement, and (step 120) carries out reasonableness test, (step 121) to new functional reliability.
If the secondary development of system strategy type, (step 114):
Then judge exploitation monitoring and diagnosis strategy, (step 115),
If, call the monitoring and diagnosis performance history, link monitoring strategies storehouse, (step 116) presses specified format and grammer input parameter, description and necessary code statement, and (step 120) carries out reasonableness test, (step 121) to new functional reliability.
If not, then judge the exploitation network management strategy, (step 117),
If, call the network management performance history, linked network operating strategy storehouse, (step 118) presses specified format and grammer input parameter, description and necessary code statement, and (step 120) carries out reasonableness test, (step 121) to new functional reliability.
If not, then call special strategy Development process, link special policy library, (step 119) presses specified format and grammer input parameter, description and necessary code statement, and (step 120) carries out reasonableness test, (step 121) to new functional reliability.
Above-mentioned new functional reliability is carried out reasonableness test, (step 121, step 122):
If disqualified upon inspection provides suggestion for revision, (step 124) forwards the judgement development types to, (step 101).
If be up to the standards, then carry out code compile (step 123), by computer parallel port and download cable input digital control system.
Below for example, a following summary is done in the application implementation of secondary development function of the present invention:
If a user effort huge fund is used for machining after having bought digital control system equipment lathe, but some functions of use back this system of discovery and performance can not meet the demands gradually along with the variation of working condition.Such as, when the user need process the peculiar part with complex geometric shapes, original digital control system did not have this interpolation algorithm.And for example, the user need detect with the assurance crudy the cutting force variation of a certain part processing process, and former digital control system does not provide the function and the interface of monitoring sort signal.Because traditional digital control system is sealed, be not provided with the interface of user's opening and the instrument of exploitation, so the user can't oneself address these problems, have to ask original production producer to undergo technological transformation.Because the closure of original structure, transformation are difficult to carry out effectively smoothly.
The present invention adopts soft, the open architecture that hardware combines of chipization, secondary developing platform with bootstrap flow process is provided for this reason, make the user can be according to the above-mentioned step of the present invention, after the description of input step by step oneself to function and performance new demand, second development system generates the code of certain format automatically, and the user can further make amendment to code.Its code compile carries out the test and the debugging of new function after download cable is transferred in the digital control system, finally determines fully satisfactory new function, and the user does not rely on can settle a dispute by the parties concerned themselves a difficult problem in the production of original production producer fully like this.
Claims (4)
1, a kind of open structure digital control system with self-guide secondary development simulation platform, be included in the digital control system that is connected with central microprocessor, general controls and user interactions chip, memory chip, power supply clock circuit, interface circuit by system bus on the mainboard, it is characterized in that, it also comprises a secondary development simulation chip, a simulating developer storage chip, a secondary development storage chip, a secondary developing platform and a second development interface
Wherein,
Described secondary development simulation chip, it links to each other with system bus, the code that is used for that the secondary development simulation interface is transmitted carry out simulation process control, manage and be cured to the secondary development storage chip,
Described simulating developer storage chip, it is connected with system bus, and the operation and the storage space of program is provided when being used for the simulation process of secondary development code,
Described secondary development storage chip, it is connected with system bus, is used for the secondary development code of storage emulation success,
Described second development interface, it links to each other with system bus, and be used to receive the secondary development code that download cable sends, and after pre-service, send in the simulating developer chip,
Described secondary developing platform, secondary development simulation software by PC computing machine and Qi Nei curing, and download cable forms, and the parallel port line by computing machine is connected with digital control system secondary development simulation interface via download cable, is used for the new function development and the emulation of open structure digital control system;
Described secondary development simulation software comprises the following step at least:
Judge development types,
1) if the secondary development of general utility functions type,
Then judge the interactive function that exploitation is new,
If, call the interactive function performance history, link interactive function function library is pressed specified format and grammer input parameter, description and necessary code statement, and new functional reliability is carried out reasonableness test,
If not, then judge the control function that exploitation is new,
If, call the control function performance history, link control function function library is pressed specified format and grammer input parameter, description and necessary code statement, and new functional reliability is carried out reasonableness test,
If not, then call the specific function performance history, link the specific function function library, press specified format and grammer input parameter, description and necessary code statement, to new functional reliability reasonableness test;
2) if the secondary development of motion control type,
Then judge the interpolation algorithm that exploitation is new,
If, calling the interpolation algorithm performance history, specified format and grammer input parameter, description and necessary code statement are pressed in link interpolation algorithm storehouse, and new functional reliability is carried out reasonableness test,
If not, then judge the speed control that exploitation is new,
If, calling the speed control performance history, specified format and grammer input parameter, description and necessary code statement are pressed in link speed control function storehouse, and new functional reliability is carried out reasonableness test,
If not, call peculair motion control performance history, specified format and grammer input parameter, description and necessary code statement are pressed in link respective function storehouse, and new functional reliability is carried out reasonableness test;
3) if the secondary development of system strategy type,
Then judge exploitation monitoring and diagnosis strategy,
If, calling the monitoring and diagnosis performance history, specified format and grammer input parameter, description and necessary code statement are pressed in link monitoring strategies storehouse, and new functional reliability is carried out reasonableness test,
If not, then judge the exploitation network management strategy,
If, calling the network management performance history, specified format and grammer input parameter, description and necessary code statement are pressed in linked network operating strategy storehouse, and new functional reliability is carried out reasonableness test,
If not, then call special strategy Development process, link special policy library, press specified format and grammer input parameter, description and necessary code statement, new functional reliability is carried out reasonableness test;
4) above-mentioned new functional reliability is carried out reasonableness test,
If disqualified upon inspection provides suggestion for revision, forward the judgement development types to,
If be up to the standards, then carry out code compile, by computer parallel port and download cable input digital control system or storage.
2, a kind of open structure digital control system according to claim 1 with self-guide secondary development simulation platform, it is characterized in that, central microprocessor is made up of 32 high-performance embedded microcontroller chips and high-speed dsp digital signal processing chip, it is connected with system bus, is used for the control computing of entire system and the coordination of functional performance.
3, a kind of open structure digital control system with self-guide secondary development simulation platform according to claim 1 is characterized in that described simulating developer storage chip is the RAM chip.
4, a kind of open structure digital control system with self-guide secondary development simulation platform according to claim 1 is characterized in that described secondary development storage chip is the Flash_ROM chip.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB011434856A CN1142488C (en) | 2001-12-29 | 2001-12-29 | Open structure digital control system with self-guide secondary development simulation platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011434856A CN1142488C (en) | 2001-12-29 | 2001-12-29 | Open structure digital control system with self-guide secondary development simulation platform |
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| CN1365048A true CN1365048A (en) | 2002-08-21 |
| CN1142488C CN1142488C (en) | 2004-03-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014082289A1 (en) * | 2012-11-30 | 2014-06-05 | Synopsys, Inc. | Sequential structure extraction by functional specification |
| CN103617044B (en) * | 2013-12-10 | 2017-02-15 | 北京市计算中心 | Control method for secondary development program execution |
-
2001
- 2001-12-29 CN CNB011434856A patent/CN1142488C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014082289A1 (en) * | 2012-11-30 | 2014-06-05 | Synopsys, Inc. | Sequential structure extraction by functional specification |
| US9633154B2 (en) | 2012-11-30 | 2017-04-25 | Synopsys, Inc. | Sequential structure extraction by functional specification |
| CN103617044B (en) * | 2013-12-10 | 2017-02-15 | 北京市计算中心 | Control method for secondary development program execution |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1142488C (en) | 2004-03-17 |
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