CN103699063B - The harvester of off-line data and method in a kind of Manufacturing Executive System MES - Google Patents
The harvester of off-line data and method in a kind of Manufacturing Executive System MES Download PDFInfo
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- CN103699063B CN103699063B CN201310625858.2A CN201310625858A CN103699063B CN 103699063 B CN103699063 B CN 103699063B CN 201310625858 A CN201310625858 A CN 201310625858A CN 103699063 B CN103699063 B CN 103699063B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The present invention discloses harvester and the method for off-line data in a kind of Manufacturing Executive System MES, and the method comprises: arranging multiple data acquisition unit wherein has one to be host node, and other are auxiliary node; When MES server fail, the collection of each data acquisition unit off-line also preserves service logic data, and sends to other data acquisition units to preserve with broadcast mode the service logic data collected; Each data acquisition unit is going back collecting test data as during test class workstation and preserve; After server failure recovers, as the data acquisition unit of host node by the service logic data upload of all data acquisition units of preserving to MES server; Each data acquisition unit is uploading to MES server as during test class workstation by the test data of preservation.This enterprise for use MES system provides off-line data collecting scheme during MES server failure, has ensured normally carrying out of production, and has decreased the loss of enterprise.
Description
Technical field
The present invention relates to manufacturing execution system (manufacturingexecutionsystem, MES) off-line data collecting field, particularly the harvester of off-line data and method in a kind of Manufacturing Executive System MES.
Background technology
Propose three layers of enterprise's integrated model in prior art, the infosystem of enterprise is divided into three levels: plan layer, execution level and key-course.MES system is the management information system towards workshop between upper strata project management system and industrial control system, and it provides the information of the execution of the production schedule and trace information and all resources (personnel, equipment, material, customer demand etc.) the present situation for operating personnel.
In discrete manufacture field, the requirement of real-time of MES system is higher, from time factor analysis, the production schedule (the general time is the moon, week, sky, class) that the problem that planning system on MES is considered is long-term in being, MES system belongs to the necessary real-time reception production ordering of execution level, equipment normal process is operated (the general time is sky, hour, minute, second), and key-course is real-time working (being generally less than 1 second).
General when MES server goes wrong, if can not deal with problems in the short time, device data will be caused to gather, and equipment cannot run, and even whole workshop cannot be produced, and loss is general very serious.
Summary of the invention
In view of the above problems, the invention provides a kind of harvester and the method that overcome off-line data in the problems referred to above or a kind of Manufacturing Executive System MES system of solving the problem at least in part.
For achieving the above object, present invention employs following technical scheme: the harvester providing off-line data in a kind of Manufacturing Executive System MES system according to an aspect of the present invention, this device comprises:
MES server state monitoring unit and multiple data acquisition unit; In described multiple data acquisition unit, have one to be host node, other are auxiliary node;
Described MES server state monitoring unit, for monitoring the state of MES server fail and fault recovery;
Each data acquisition unit, after knowing MES server fail from described MES server state monitoring unit, off-line collection also preserves service logic data, sends to other data acquisition units to preserve the service logic data collected with broadcast mode;
As the data acquisition unit of host node, after knowing the fault recovery of MES server from described MES server state monitoring unit, by the service logic data upload of all data acquisition units of preservation to MES server;
Each data acquisition unit, going back collecting test data as during test class workstation and preserve, and after knowing the fault recovery of MES server from described MES server state monitoring unit, uploads to MES server by the test data of preservation.
In one embodiment of the invention, MES server state monitoring unit comprises: the application programming interface API for the operating system calling MES server knows the state of MES server fail and fault recovery.
Further, MES server state monitoring unit, for monitoring the hardware resource state of described MES server.Each data acquisition unit, when as test class workstation, be further used for the monitored results of the hardware resource state to MES server according to described MES server state monitoring unit, judge that whether MES server is idle, when MES server free, the test data of preservation is uploaded to MES server.
In one embodiment of the invention, each data acquisition unit, is further used for sending heartbeat signal to other data acquisition units every preset time period; Each data acquisition unit, if be further used for exceeding preset time period and do not receive the heartbeat signal of other data acquisition units, then no longer sends service logic data to this data acquisition unit when broadcasting service logical data.
In one embodiment of the invention, the information list of all data acquisition units is preserved in each data acquisition unit; Wherein, comprise in the information list of each data acquisition unit data acquisition unit classification this, data acquisition unit classification is host node or auxiliary node for distinguishing data acquisition unit.
According to another aspect of the present invention, provide the acquisition method of off-line data in a kind of Manufacturing Executive System MES, the method comprises:
Arrange multiple data acquisition unit and carry out data acquisition respectively, in wherein said multiple data acquisition unit, have one to be host node, other are auxiliary node;
The state of monitoring MES server fail and fault recovery;
When MES server fail, the collection of each data acquisition unit off-line also preserves service logic data, and sends to other data acquisition units to preserve with broadcast mode the service logic data collected; Each data acquisition unit, going back collecting test data as during test class workstation and preserve;
After server failure recovers, as the data acquisition unit of host node by the service logic data upload of all data acquisition units of preserving to MES server; Each data acquisition unit, when as test class workstation, uploads to MES server by the test data of preservation.
In one embodiment of the invention, the state monitoring MES server fail and fault recovery comprises: the state being known MES server fail and fault recovery by the application programming interface API of the operating system calling MES server.
Further, the hardware resource state of described MES server is monitored; Each data acquisition unit, when as test class workstation, according to the monitored results of the hardware resource state to MES server, judges that whether MES server is idle, when MES server free, the test data of preservation is uploaded to MES server.
Further, each data acquisition unit sends heartbeat signal to other data acquisition units every preset time period; If each data acquisition unit exceeds the heartbeat signal that preset time period does not receive other data acquisition units, then no longer send service logic data to this data acquisition unit when broadcasting service logical data.
In one embodiment of the invention, the information list of all data acquisition units is preserved in each data acquisition unit.Wherein, comprise in the information list of each data acquisition unit data acquisition unit classification this, data acquisition unit classification is host node or auxiliary node for distinguishing data acquisition unit.
The harvester of off-line data and acquisition method in this MES system provided by the invention, can realize when MES system breaks down, workshop is produced in disconnection mode, support equipment normally runs, after MES system is repaired, then off-line data is uploaded to the technical scheme of MES system, the enterprise for use MES system provides off-line data collecting scheme during a kind of MES server failure, this has ensured normally carrying out of production, decreases the loss of enterprise.
Accompanying drawing explanation
Fig. 1 is the block diagram of the harvester of off-line data in a kind of MES system of providing of one embodiment of the invention;
Fig. 2 is the block diagram that between the data acquisition unit that provides of one embodiment of the invention, discrete data is synchronous;
Fig. 3 is the block diagram of the acquisition method of off-line data in a kind of MES system of providing of the present invention's enforcement.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
In MES system, when MES server does not break down, each data acquisition unit directly communicates with MES server, and the data of collection are directly uploaded to MES server respectively, ensures to produce normally to carry out.Once MES server fail, the data of collection cannot be sent to MES server by each data acquisition unit, production may be caused to paralyse, cause certain economic loss to enterprise.
Core concept of the present invention is to provide a kind of when in MES system, MES server failure is in off-line mode, adopt distributed data acquisition and treatment technology, each data acquisition unit being kept at local production data adopts broadcast mode to send to other all data acquisition units, realize data syn-chronization, support equipment before fault restoration during this period of time in run well, after MES server failure is eliminated, then by the data upload that obtains under off-line mode to MES server.
Fig. 1 is the block diagram of the harvester of off-line data in a kind of MES system of providing of one embodiment of the invention.See Fig. 1, in this MES system of the present invention, the harvester of off-line data comprises: MES server state monitoring unit 110 and multiple data acquisition unit, 3 data acquisition units are shown, respectively: data acquisition unit 1, data acquisition unit 2 and data acquisition unit 3 in Fig. 1; In described multiple data acquisition unit, have one to be host node (data acquisition unit 2 as shown in Figure 1 is host node), other are auxiliary node (data acquisition unit 1 as shown in Figure 1 and data acquisition unit 3 are auxiliary nodes).Each data acquisition unit gathers the data of the website of self correspondence.
MES server state monitoring unit 110, for monitoring the state of MES server fail and fault recovery;
Each data acquisition unit (1 to 3), after knowing MES server fail from MES server state monitoring unit 110, off-line collection also preserves service logic data, sends to other data acquisition units to preserve the service logic data collected with broadcast mode.
As the data acquisition unit 2 of host node, after knowing the fault recovery of MES server from MES server state monitoring unit 110, by the service logic data upload of all data acquisition units 1 to 3 of preservation to MES server.
Each data acquisition unit (1 to 3), going back collecting test data as during test class workstation and preserve, and after knowing the fault recovery of MES server from described MES server state monitoring unit, uploads to MES server by the test data of preservation.
It should be noted that, be illustrated for 3 data acquisition units in the present embodiment, but in other embodiments of the invention, the number of data acquisition unit can be determined according to actual production demand.
In one embodiment of the invention, MES server state monitoring unit 110, the application programming interface API for the operating system calling MES server knows the state of MES server fail and fault recovery.
In one embodiment of the invention, MES server state monitoring unit 110, is further used for the hardware resource state monitoring MES server; CPU as MES server is the state of the hardware resource such as internal memory, hard disk, network of fully loaded or idle, server.Data acquisition unit as major node and each data acquisition unit as auxiliary node, when as test class workstation, be further used for the monitored results of the hardware resource state according to MES server state monitoring unit 110 pairs of MES servers, judge that whether MES server is idle, when MES server free, the test data of preservation is uploaded to MES server.Data acquisition unit in one embodiment of the invention can be responsible image data in MES system client or independent of a program of the data acquisition task of data collection client or a module.
In one embodiment of the invention, each data acquisition unit, is further used for sending heartbeat signal to other data acquisition units every preset time period.Each data acquisition unit, if be further used for exceeding preset time period and do not receive the heartbeat signal of other data acquisition units, then no longer sends service logic data to this data acquisition unit when broadcasting service logical data.
In one embodiment of the invention, the information list of all data acquisition units is preserved in each data acquisition unit.Wherein, comprise in the information list of each data acquisition unit data acquisition unit classification this, data acquisition unit classification is host node or auxiliary node for distinguishing data acquisition unit.As shown in fig. 1, the data acquisition unit classification in data acquisition unit 2 is set to host node, the data acquisition unit classification in data acquisition unit 1 and 3 is set to auxiliary node.Be appreciated that in MES system, host node is not limited to the data acquisition unit 2 in the present embodiment.
When the data acquisition unit as auxiliary node is when exceeding the heartbeat signal that preset time period does not receive as the data acquisition unit of host node, judge that this host node lost efficacy.
When host node lost efficacy, between other data acquisition units, carried out the arbitration of new host node.The concrete production process of new host node is: arbitration starts, data acquisition unit arbitration ID in the list of each data acquisition unit information is issued other data acquisition units by each data acquisition unit, the data acquisition unit received arbitration ID and the data acquisition unit of self are arbitrated ID and compare by other data acquisition units, what data acquisition unit arbitration ID was maximum is then new host node, and arbitration terminates.
See Fig. 1, MES server state monitoring unit 110, be arranged on MES server end, obtained the state of server fail and fault recovery by the application programming interface API of the operating system of invoking server.Work as server fail, each data acquisition unit obtains server failure information by MES server state monitoring unit 110, and then each data acquisition unit acquires comprises the service logic data of the information such as routing iinformation, plant information, material information.The service logic data collected are sent to other data acquisition units with broadcast mode by each data acquisition unit, and the data received are kept at this locality by other data acquisition units.In this way, the data of each data acquisition unit achieve synchronously.
In order to ensure data acquisition unit successfully by service logic data broadcast to other data acquisition unit, reduce the generation of network congestion as much as possible, according to udp protocol in one embodiment of the present of invention, heartbeat mode is adopted to obtain the active state of each data acquisition unit.Only when this data acquisition unit is active state, just by the service logic data broadcast that collects to this data acquisition unit.Concrete, save information list and the state of all data acquisition units in a whole MES system in each data acquisition unit, the information list of data acquisition unit includes but not limited to following information:
A. data acquisition unit ID – is for distinguishing the unique identification of data acquisition unit;
B. data acquisition unit title;
C. data acquisition unit IP address;
D. the nearest Xin of data acquisition unit jumps Shi Jian – for judging whether this node is in active state by heartbeat;
E. data acquisition unit Lei other – is host node or auxiliary node for identifying this node
F., when data acquisition unit arbitration ID – is used for host node inefficacy, new host node is produced by arbitration;
G. data acquisition unit arbitration grade
Data acquisition unit sends heartbeat signal to other data acquisition units by udp protocol every preset time period, and other data acquisition units upgrade the state of this data acquisition unit according to heartbeat signal.Each data acquisition unit, if do not receive the heartbeat signal that other data acquisition unit sends exceeding preset time period, then no longer sends service logic data to this data acquisition unit when broadcasting service logical data.
Fig. 2 is the block diagram that in the present invention's example, between data acquisition unit, discrete data is synchronous.See Fig. 2, in order to ensure that production can be reviewed in real time, process prevents dull mistake proofing, and improve the production and operation efficiency of management, MES system possesses the basic function of capturing service logical data and test data.
A data acquisition unit is when as test class workstation, and this data acquisition unit understands capturing service logical data and test data simultaneously; Data acquisition unit is being kept at this locality as during test class workstation by the test data collected, asynchronous to other data acquisition units.
See Fig. 2, the service logic data collected are synchronized to other data acquisition units by broadcast mode by each data acquisition unit.Data acquisition unit 1 by the service logic data that collect by broadcast mode synchronous data collection unit 2 and 3, data acquisition unit 2 by the service logic data that collect by broadcast mode synchronous data collection unit to 3 and 1.Data acquisition unit 3 by the service logic data that collect by broadcast mode synchronous data collection unit 1 and 2.The service logic data of collection are completed synchronous and data sharing by each data acquisition unit in this way.Like this, website corresponding to each data acquisition unit, during MES server failure, still normally can run according to synchronous data.
The moving state information of each data acquisition unit is recorded in the information list of data acquisition unit by heartbeat mode, is synchronized to other data acquisition units.
When MES server failure recover after, data acquisition unit 1 to 3 by server state monitoring unit 110 obtain server failure recover information, then by as host node data acquisition unit 2 by preserve service logic data upload to MES server.
Due under off-line mode, the service logic data between each data acquisition unit are synchronous, so be responsible for uploading service logic data to MES server by the data acquisition unit 2 as host node, auxiliary node is not responsible uploads service logic data.Host node is by service logic data upload to MES server, and upload successfully, MES system changes to line model by off-line mode.
If data acquisition unit 1 to 3 is test class workstation simultaneously, then data acquisition unit 1 to 3 gathers respectively and preserves test data and according to the monitored results of MES server state monitoring unit to the hardware resource state of MES server, judge that whether MES server is idle, when MES server free, the test data of preserving separately is uploaded to MES server.
From the above mentioned, off-line data collecting device in this MES system provided by the invention, when MES server fail, by broadcast mode synchrodata between each data acquisition unit, the normal operation of support equipment and production, after MES server failure recovers, again by the technical scheme of the data upload of preservation to MES server, enterprise for use MES system provides off-line data collecting scheme during a kind of MES server failure, this has ensured normally carrying out of production, and decreases the loss of enterprise.
According to another aspect of the present invention, the acquisition method of off-line data in a kind of Manufacturing Executive System MES is provided.Fig. 3 is the block diagram of off-line data collecting method in a kind of MES system of providing of the present invention's example; See Fig. 3, the method comprises:
Step 310, arranges multiple data acquisition unit and carries out data acquisition respectively, and wherein in multiple data acquisition unit, have one to be host node, other are auxiliary node.
Step 320, the state of monitoring MES server fail and fault recovery.In one embodiment of the invention, by arranging a server status monitor at MES server end and whether to break down to MES server and whether fault being recovered to monitor.
Step 330, when MES server fail, the collection of each data acquisition unit off-line also preserves service logic data, and sends to other data acquisition units to preserve with broadcast mode the service logic data collected; Each data acquisition unit, going back collecting test data as during test class workstation and preserve.
Step 340, after the fault recovery of server, as the data acquisition unit of host node by the service logic data upload of all data acquisition units of preserving to MES server; Each data acquisition unit, when as test class workstation, uploads to MES server by the test data of preservation.
When the service logic data of preservation are successfully uploaded to MES server by host node, MES system changes to line model by off-line mode.
Monitoring MES server fail described in step 320 and the state of fault recovery comprise:
The state of MES server fail and fault recovery is known by the application programming interface API of the operating system calling MES server.
In one embodiment of the invention, the method comprises further: the hardware resource state of monitoring MES server; Each data acquisition unit, when as test class workstation, according to the monitored results of the hardware resource state to MES server, judges that whether MES server is idle, when MES server free, the test data of preservation is uploaded to MES server.
In one embodiment of the invention, the method comprises further: each data acquisition unit sends heartbeat signal to other data acquisition units every preset time period; If each data acquisition unit does not receive the heartbeat signal of other data acquisition units in preset time period, then no longer send service logic data to this data acquisition unit when broadcasting service logical data.
In one embodiment of the invention, the information list of all data acquisition units is preserved in each data acquisition unit; Wherein, comprise in the information list of each data acquisition unit data acquisition unit classification this, data acquisition unit classification is host node or auxiliary node for distinguishing data acquisition unit.
The harvester of off-line data and acquisition method in this MES system provided by the invention, can realize when MES system breaks down, workshop is produced in disconnection mode, and support equipment normally runs.After MES system is repaired, then off-line data is uploaded to MES system.
The foregoing is only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.All any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., be all included in protection scope of the present invention.
Claims (10)
1. the harvester of off-line data in Manufacturing Executive System MES, it is characterized in that, described device comprises: MES server state monitoring unit and multiple data acquisition unit; In described multiple data acquisition unit, have one to be host node, other are auxiliary node;
Described MES server state monitoring unit, for monitoring the state of MES server fail and fault recovery;
Each data acquisition unit, after knowing MES server fail from described MES server state monitoring unit, off-line collection also preserves service logic data, sends to other data acquisition units to preserve the service logic data collected with broadcast mode;
As the data acquisition unit of host node, after knowing the fault recovery of MES server from described MES server state monitoring unit, by the service logic data upload of all data acquisition units of preservation to MES server;
Each data acquisition unit, when as test class workstation, goes back collecting test data and preserves, and after knowing the fault recovery of MES server from described MES server state monitoring unit, the test data of preservation is uploaded to MES server.
2. device as claimed in claim 1, is characterized in that,
Described MES server state monitoring unit, the application programming interface API for the operating system by calling MES server knows the state of MES server fail and fault recovery.
3. device as claimed in claim 1, is characterized in that,
Described MES server state monitoring unit, is further used for the hardware resource state monitoring described MES server;
Each data acquisition unit, when as test class workstation, be further used for according to the monitored results of MES server state monitoring unit to the hardware resource state of MES server, judge that whether MES server is idle, when MES server free, the test data of preservation is uploaded to MES server.
4. device as claimed in claim 1, is characterized in that,
Each data acquisition unit, is further used for sending heartbeat signal to other data acquisition units every preset time period;
Each data acquisition unit, if be further used for exceeding preset time period and do not receive the heartbeat signal of other data acquisition units, then no longer sends service logic data to this data acquisition unit when broadcasting service logical data.
5. device as claimed in claim 1, is characterized in that,
The information list of all data acquisition units is preserved in described each data acquisition unit;
Wherein, comprise in the information list of each data acquisition unit data acquisition unit classification this, data acquisition unit classification is host node or auxiliary node for distinguishing data acquisition unit.
6. the acquisition method of off-line data in Manufacturing Executive System MES, it is characterized in that, the method comprises:
Arrange multiple data acquisition unit and carry out data acquisition respectively, in wherein said multiple data acquisition unit, have one to be host node, other are auxiliary node;
The state of monitoring MES server fail and fault recovery;
When MES server fail, the collection of each data acquisition unit off-line also preserves service logic data, and sends to other data acquisition units to preserve with broadcast mode the service logic data collected; Each data acquisition unit, when as test class workstation, goes back collecting test data and preserves;
After server failure recovers, as the data acquisition unit of host node by the service logic data upload of all data acquisition units of preserving to MES server; Each data acquisition unit, when as test class workstation, uploads to MES server by the test data of preservation.
7. method as claimed in claim 6, is characterized in that, the state of described monitoring MES server fail and fault recovery comprises:
The state of MES server fail and fault recovery is known by the application programming interface API of the operating system calling MES server.
8. method as claimed in claim 6, it is characterized in that, the method comprises further:
Monitor the hardware resource state of described MES server;
Each data acquisition unit, when as test class workstation, according to the monitored results of the hardware resource state to MES server, judges that whether MES server is idle, when MES server free, the test data of preservation is uploaded to MES server.
9. method as claimed in claim 6, it is characterized in that, the method comprises further:
Each data acquisition unit sends heartbeat signal to other data acquisition units every preset time period;
If each data acquisition unit does not receive the heartbeat signal of other data acquisition units exceeding preset time period, then no longer send service logic data to this data acquisition unit when broadcasting service logical data.
10. method as claimed in claim 9, is characterized in that,
The information list of all data acquisition units is preserved in described each data acquisition unit;
Wherein, comprise in the information list of each data acquisition unit data acquisition unit classification this, data acquisition unit classification is host node or auxiliary node for distinguishing data acquisition unit.
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