CN106292584B - A kind of flexible manufacturing system based on modular control unit - Google Patents
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- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/41835—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by programme execution
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Abstract
The embodiment of the present application provides a kind of flexible manufacturing system based on modular control unit, and flexible manufacturing system includes ERP system, MES system and production equipment, and MES system includes control unit, and each control unit includes at least ability module and control module；Ability module is used to read the operation logic file and function library of extraneous transmission；Control module is for loading and running operation logic file and function library.Flexible manufacturing system of the invention, it wherein include that can read the extraneous operation logic file transmitted and function library and the MES system that the control unit of itself function is defined with this in real time, application developer can according to need the power function in customized operation logic file and function library, different functions is completed by different control units, it is not necessary that the function of control unit is solidified in systems in advance, compared with prior art, the flexibility ratio for improving manufacturing process control, reduces development cost.
Description
Technical field
The invention belongs to the fields manufacturing execution system (manufacturing execution system, abbreviation MES), especially
It is related to a kind of flexible manufacturing system based on modular control unit.
Background technique
Flexible manufacturing system includes ERP system, MES manufacturing execution system and a series of production equipment.Wherein MES system
System optimizes management to the entire production process completed from order placement to product for that can transmit by information.It can with it is upper
The ERP system communication at end obtains information and can collect the data information of the terminal device positioned at end, the operation to end-equipment
It is controlled.MES system in existing flexible manufacturing system is primarily present following problem:
Products scheme transplantability is poor
Products scheme especially exploitation code transplantability difference is to perplex a main problem of MES market development.Due to passing
The software frame thinking of system excessively pursues the flow monitoring of concentration, and in the scheme preliminary design phase, developer must be sufficiently pre-
The working ability and process for estimating manufacture system may, so that verification hardware device relies on too strong in system software, and limits
A possibility that system itself extension and products scheme transplanting, equally also fundamentally constrain the potential processing of entire manufacture system
Performance flexible.
Industry limitation is too strong
Because of the problem for the products scheme transplantability difference being previously mentioned before, today almost all of MES supplier
For product all just for certain types of enterprise in very specific industry or even industry, marketing has very strong limitation.
Product is open poor
The market MES is seriously divided, and the use of the universal standard is lacked in terms of data and mode.Many MES developers are even
Itself is also device manufacturer, and the software systems and the equipment of itself degree of coupling of exploitation are high, whole with third party device and software
Conjunction ability is poor, systemic openness serious loss, with two o'clock reciprocal causation before, limits the development of itself product.Even picture
Large software enterprise as SAP, the ERP product of its own also has in data with MES product centainly to be exchanged unsmooth, illustrates it
ERP and MES product lacks Global motion planning design on designing and developing before.
Development cost is high
Transplantability is poor, and reason is that the reuse ratio of code in its client's scheme is very low, and customized development not can avoid
A large amount of inefficient repeated work, this directly results in huge investment of the developer in MES conceptual design, exploitation and implementation.
Tradition concentrates frame flexibility poor (as shown in Figure 1), also results in system to the adaptibility to response of random case not
Foot, any to change the basic framework and kernel program that all may relate to system, not only exploitation is difficult, for Client Enterprise
Mean that longer system is stopped and test period, its may be directly affected and normal produced.
On the whole, traditional MES system mostly uses centerized fusion, and control unit is cured among system, in this way
It is required that system, in the design phase, program development designer must just fully take into account the production that entire manufacture system may use
The interface of process and distinct device, technology characteristics, which greatly limits giving full play to for each process equipment production capacity
With the flexibility ratio of manufacturing process control.
Summary of the invention
It is existing to solve the purpose of the present invention is to provide a kind of flexible manufacturing system based on modular control unit
MES system centerized fusion bring flexibility ratio in technology in flexible manufacturing system is low, program secondary development is at high cost asks
Topic.
The invention discloses a kind of flexible manufacturing system based on modular control unit, the flexible manufacturing system packet
ERP system, MES system and production equipment are included, the MES system includes control unit, and each described control unit is at least wrapped
Include ability module and control module；
The ability module is used to read the operation logic file and function library of extraneous transmission；
The control module is for loading and running the operation logic file and the function library.
Preferably, the operation logic file includes the variable for representing external environment or internal state value, function direction
And the condition process of the function of operation direction；
Described control unit further includes cognition module, for obtaining and saving the value of the variable；
The control module is used to verify according to whether the value of the variable meets the condition process, and when meeting,
It runs the function and is directed toward pointed power function.
Preferably, described control unit further includes communication module, for establishing communication connection, according to communications protocol with it is described
ERP system and/or the production equipment carry out data transmission.
Preferably, the MES system include at least two described control units, described control unit communication module concerning foreign affairs it
Between communicated by unified data format.
Preferably, the function library is DLL function library.
Preferably, operation logic file is XML format.
Preferably, the ability module further includes a consolidator class interface, and all customized power functions are inherited
The interface.
Preferably, the ability module is also used to know the format of the data by the power function of itself
Not and handle.
Preferably, the cognition module is also used to save the operation logic file, device configuration and running log information.
Preferably, the communication module, for transmitting first kind data according to udp protocol, and for being assisted according to HTTP
View transmission Second Type data, the first kind data are different from the attribute of the Second Type data.
The present invention is by providing a kind of flexible manufacturing system, wherein including the operation logic that can read extraneous transmission in real time
File and function library and the MES system that the control unit of itself function is defined with this, so that application developer can be with
Power function in customized operation logic file and function library as needed, passes through different control for different functions
Unit is completed, and without solidifying in systems the function of control unit in advance, compared with prior art, improves manufacturing process control
Flexibility ratio, reduce development cost.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The some embodiments recorded in application, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is MES system architecture diagram in the prior art；
Fig. 2 is flexible manufacturing system architecture diagram of the present invention
Fig. 3 is MES system architecture diagram of the present invention；
Fig. 4 is control unit structure chart of the present invention.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common
The application protection all should belong in technical staff's every other embodiment obtained without creative efforts
Range.
The invention discloses a kind of flexible manufacturing systems, as shown in Figure 2 comprising ERP system 1, MES system 2 and by
A series of production equipments 3 of MES system control.
Wherein MES system is changed as distributed AC servo system by traditional centerized fusion, and mainly using being capable of basis
The external documents read in real time realize the control unit of different function, each control unit so only needs specific to a certain
Production equipment carry out data collection and flow monitoring, fully ensure that the efficiency of this equipment and flexibility ratio give full play to, and can
With independent operation as far as possible.
As shown in figure 3, for the MES system structure chart in the present invention comprising multiple control units, each control unit pair
Answer a production equipment.Due to each control unit be it is self-existent, no matter increasing, deleting or to change control single
Member will not all impact other control units.
The structure of above-mentioned control unit is introduced first below:
As shown in figure 4, control unit includes ability module and control module.
Control module itself runs the control thread of control unit, is the nucleus module of control unit.Firstly, it includes one
A main thread is loaded into operation logic file and DLL function library based on XML format in startup stage, later according in real time
Environmental information and the continual circular test operation logic of internal information data, any logical relation for meeting condition will activate
One or more functions function pointed by one branch thread starting operation function function library.
In the present invention, one is probably divided three component parts based on the operation logic file that XML format defines:
Variable V ariable
One variable represents an external environment or internal state value.Such as control unit here controls one and sets
Standby, then it can determine whether this equipment has connected by the electronic signal of inductor, at this moment we just need fixed
Justice one Boolean variables D eviceConnected saves this data.
Function is directed toward Function
One of control unit, which is characterized mainly in that, makes a response to external environment, and reaction here be exactly run it is specific
Power function.Show that a definition is directed toward certain power function and goes to establish connection with equipment below.
Condition process Process
Environmental variance and power function direction all have existed, and need to determine the critical condition for running this function
Justice.In this example, we can be with it is well understood that after related to the equipment setting of control unit start completion be loaded into, such as
Fruit equipment does not connect, and system should initiate the connection application to equipment.
In the present invention, the function of control module further includes the functions such as management and abnormal conditions processing to own thread.Energy
Power module is used to read operation logic file and function library from the external world, and it is functional to be responsible for the institute that management control unit is loaded into
Property function.This module provides a consolidator class interface ICapability, and any customized power function class must be inherited
This interface, to guarantee that it can be identified and be run by ability module automatically when being loaded into.
The power function thread that control module is initiated finally is examined and is started by ability module.According in operation logic file
Different parameter settings, same power function here can be with the operations of synchronous and asynchronous both of which.
XML format can be used in above-mentioned operation logic file, and function library can be DLL function library.Ability mould
Block can obtain operation logic file etc. from any extraneous interface such as ERP system or other terminals etc..
Further, control unit of the present invention may also include cognition module.Being introduced in the control module as before, institute
Monitoring to environment and internal operation situation be all by a series of variables, and these variables can by cognition module come into
Row management.In addition to these real-time variables, cognition module be also responsible in operation the operation logic of preserve and control unit, program and
All information such as device configuration and running log.
Further, control unit can also include communication module.The data communication of control unit is divided into external and interior
Two, portion major part.Outside mentioned here refers to that equipment or software except MES system software section, such as production add
Construction equipment.So communication module here supports that a variety of industry are common logical in order to realize more extensive external communication function
Interrogate agreement and format such as HTTP, UDP, USB, RS232, RS485, TCP/IP etc..This module is responsible for establishing connection, and passes through
This connection sends and receives data.
Internal communication includes the data friendship of control unit and another control unit or control unit and ERP system here
Stream.Such as newest production plan parameter is obtained from ERP system and is updated.
In the present invention, internal communication data, which could dictate that, is all based on XML formatization transmitting, and communications protocol is according to data sheet
The size of member can carry out different disposal, to guarantee that timeliness and safety meet the requirements.According to the characteristics of data and requirement, this hair
It is bright to use two kinds of communications protocol:
Low data are required less than 4K or to integrity security
Small data less than 4K, such as control unit basic status information, current IP and operation information need uninterruptedly to exist
Broadcast inside MES.This data use udp protocol, do not need reciever confirmation generally.If it is desired, Tongxu module is also supported
Reciever confirmation, Lai Shixian handshake mode.
Greater than 4K or to the demanding data of integrity security
This part may be complicated device status information, the data from database, file or high-throughput test
The test result information and equipment control instruction of equipment will pass through the slightly lower http protocol of more safe but possible treatment effeciency
Transmission.If higher for security requirement, SSL encryption can be carried out to transmitted data, guarantee that internal information will not be by the
The interception of tripartite's Malware.
Here, Tongxu module realization control unit ability to communicate internal and external in MES system, and different numbers
It can flexibly be used according to demand according to processing mode, meet the different demands of customization.
It should be noted that can be there are many data format, in the present invention in practical application, the identification to specific data format
And processing, it can be completed by power function customized in ability module, guarantee that communication module is general in different schemes with this
Property.
As it can be seen that basic structure is all identical in above-mentioned control unit, different is its function library and logic text
Dynamic importing when part is control unit operation, this makes that same core can be used when for different process equipment exploitations
Heart coding, then writes logical file and power function for its difference, the height for realizing procedure subject part is removable
Plant property.
The aforementioned four module of each control unit calls mutually combination.For example, if we need to develop one
It kind is directed to the power function of certain equipment, such as connects certain equipment Connect2Device, we can be with inside this function
The communications protocol to external equipment of communication module is called, the correlated variables of cognition module is then changed according to operation result.
In MES system, various functions demand can be completed by using the control unit of multiple above structures, not only wrapped
The monitoring of equipment is included, but also includes the data interaction (such as ERP, CRM etc.) to third party software, and to MES system
Monitoring and analysis etc..It is independent mutually between this modular control unit to cooperate again, it constitutes as shown in Figure 3
MES, and realize the flexible and efficient management of MES system.
The following are a specific embodiments of flexible manufacturing system of the invention comprising ERP system, MES system and 4
A different production equipment, wherein MES system include 6 independent control unit A, B, C, D, E, F, control unit A be used for
ERP system is communicated, and control unit B, C, D, E and 4 production equipments correspond, for being monitored to production equipment,
Control unit F is for analyzing MES system itself.The function of each control unit is patrolled by what self-ability module was read
It collects operating file and function library is defined.Control unit A obtains the new production meter for the XML format that ERP system is sent
Draw data and synchronize and pass through the file of XML format and be sent to other several control units, control unit B, C, D, E with it is respective
Production equipment communicated, to the data received, identified and handled by the ability module of itself.Control unit F connects
The data for receiving XML format, analyze MES system itself.Data are carried out by XML file between this 6 control units
Interaction.
When increasing has new production equipment, the attribute of the production equipment can be corresponded to, the logic operation of corresponding function is defined
File and function library increase a control unit and read and newly determine under the premise of not influencing entire flexible manufacturing system
The logic operation file and function library of justice realize the monitoring to new production equipment.
Compared with prior art, flexible manufacturing system of the invention has the advantages that
It is high to produce flexibility ratio
Utmostly disperse the row for simulating worker by the autonomy control unit with independent logical and predefined ability
For mode, realizes the random process ability to different situations, play the flexible production ability of manufacturing equipment group to greatest extent.
Meanwhile going to improve the versatility of system development platform using the frame of modular control unit, solve tradition system
Manufacturing control system MES is in terms of divergence, flexibility and code the problem of wretched insufficiency.
Set expandability is good
Traditional MES structure needs to carry out system when needing to be adjusted production procedure or add new equipment
Whole change, and it is usually associated with the shutdown test of entire manufacture system later, it causes greatly to waste.And use frame of the present invention
The variation of the MES of frame, production procedure only need to reset the relevant parameter in database, do not need to any journey
Sequence change, can carry out at any time in production run.Still further aspect, the addition of new Processes and apparatus, it is only necessary to its into
The exploitation and test of row part, will not have any impact to the existing part of system.
Processing efficiency improves
It, can be with by the efficient operation of overall flow and data analysis based on the distributed frame of frame of the present invention
Each control unit is managed and adjusted in real time, the production efficiency of equipment is given full play to, efficiently distributes resources of production, is solved
Bottleneck effect problem caused by certainly certain production links.And the wasting of resources caused by production process is effectively avoided, it improves
Production efficiency reduces production consumption, optimizes enterprise's production capacity.
Secondary development is at low cost
Because the high price of MES essentially consists on its secondary development cost, furtherly, system development platform
Portable difference be the main reason for causing its secondary development cost excessively high.In the present invention, the main body of MES development platform is compiled
Code has the versatility of height, to equipment used by client without coupled relation, so that secondary development cost is significantly dropped
It is low.
Although depicting the application by embodiment, it will be appreciated by the skilled addressee that the application there are many deformation and
Variation is without departing from spirit herein, it is desirable to which the attached claims include these deformations and change without departing from the application's
Spirit.
Claims (7)
1. a kind of flexible manufacturing system based on modular control unit, the flexible manufacturing system includes ERP system, MES
System and production equipment, which is characterized in that the MES system includes control unit, and each control unit is individually present,
Each control unit only need to carry out data collection and flow monitoring, each described control unit to a certain specific production equipment
It further include cognition module and communication module including at least ability module and control module；
The ability module is used to read the operation logic file and function library of extraneous transmission, the operation logic file packet
Include the condition process of the variable for representing external environment or internal state value, the function that function is directed toward and operation is directed toward；
The control module is used to load and run the operation logic file and the function library, and for verifying root
Whether meet the condition process according to the value of the variable, and when meeting, runs the function and be directed toward pointed function letter
Number；
The cognition module is used to obtain and save the value of the variable；
The communication module for establishing communication connection, according to communications protocol and the ERP system and/or the production equipment into
Row data transmission；
In control unit, basic structure is all identical, different to be its function library and logical file is control unit fortune
Dynamic importing when row: control module itself runs the control thread of control unit, is the nucleus module of control unit；Firstly,
It includes a main thread, in startup stage, is loaded into operation logic file and DLL function library based on XML format, later
According to real-time environmental information and the continual circular test operation logic of internal information data, any logic for meeting condition is closed
System will activate one or more functions function pointed by a branch thread starting operation function function library；
The corresponding production equipment of each control unit all will not be to other controls no matter increasing, deleting or change control unit
Unit impacts；When increasing has new production equipment, the attribute of the corresponding production equipment defines the logic fortune of corresponding function
Style of writing part and function library increase a control unit and read new under the premise of not influencing entire flexible manufacturing system
The logic operation file and function library of definition realize the monitoring to new production equipment.
2. the flexible manufacturing system as described in claim 1 based on modular control unit, which is characterized in that the function
Function library is DLL function library.
3. the flexible manufacturing system as described in claim 1 based on modular control unit, which is characterized in that operation logic
File is XML format.
4. the flexible manufacturing system as described in claim 1 based on modular control unit, which is characterized in that the ability
Module further includes a consolidator class interface, and all customized power functions inherit the interface.
5. the flexible manufacturing system as described in claim 1 based on modular control unit, which is characterized in that the ability
Module is also used to that the format of the data is identified and handled by the power function of itself.
6. the flexible manufacturing system as described in claim 1 based on modular control unit, which is characterized in that the cognition
Module is also used to save the operation logic file, device configuration and running log information.
7. the flexible manufacturing system as described in claim 1 based on modular control unit, which is characterized in that the communication
Module, it is described for transmitting first kind data according to udp protocol, and for transmitting Second Type data according to http protocol
First kind data are different from the attribute of the Second Type data.
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| CN109683982B (en) * | 2018-12-06 | 2022-07-19 | 深圳市广和通无线股份有限公司 | MES system control method, MES system control device, computer equipment, and storage medium |
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| CN111752242A (en) * | 2020-06-03 | 2020-10-09 | 深圳前海禾盈科技有限公司 | Equipment connection method for automatic production |
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| CN102156467B (en) * | 2011-03-28 | 2012-11-14 | 山西太钢不锈钢股份有限公司 | Steel production planning-based energy forecasting method |
| CN102880163B (en) * | 2012-11-01 | 2015-08-19 | 中南大学 | A kind of roasted green tea automated production line control system |
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