CN105278960A - Process automation method and system in remote sensing application - Google Patents
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Abstract
The present invention provides a process automation method and system in a remote sensing application. The method comprises: creating a visual remote sensing application process model by means of a process model editor; converting the visual remote sensing application process model into a process description language; and parsing the process description language by means of a process scheduling engine and executing a corresponding remote sensing application process. According to the method and system provided by the present invention, a complete process from process model editing, process description language generating to a process scheduling engine is realized; the problems of relatively complicated usage of traditional process scheduling software and a variety of limitations to an operation of a complex process are solved, so that a complex and varied processing flow in the remote sensing application is satisfied.
Description
Technical field
The present invention relates to the process automation method and system in a kind of remote sensing application, be applicable to the business flow processing in remote sensing floor treatment field.
Background technology
The concept source of workflow, in organization of production and Field of Office Automation, is for having the activity of fixed routine in daily life and the concept proposed.It is performed by entirety work activities being resolved into the good task role rule of definition and process and finish the work and is monitored.Workflow can realize modern enterprise, at reasonable time, suitable information be passed to the requirement of suitable people, and it can also incorporate decision support system (DSS) for user and provides information accurately.
By the analysis to new oversea technique and the summary to some technical information, the research of workflow will focus on the following aspects:
The first, to the research of flow description language.At present, existing research is mostly the workflow process definition grammer XPDL provided based on WFMC (WFMC), and at this BPMN, BPEL, in active node definition procedure, XPDL defines strict linguistic constraints, add the complexity of active node definition, the close-coupled of Dynamic link library relation information between the node static attribute information brought thus and node, result in the problem of procedure definition and process instantiation disconnection.Therefore, need research Work flow model instantiation more flexibly engine implementation technology, with lightweight and dirigibility for target, based on simple, loosely-coupled node definition grammer, simplify XPDL grammer, solve the problem that work on hand stream engine structure is complicated, flow process disconnects.
The second, to the research of flow engine.Many flow engines are there is on the market at present, comprise IBMWBISF, OracleBPEL, jBPM, BEAIntegration etc., they are based on existing process description language mostly, and have certain limitation at editor's Complicated Flow, do not consider the optimization allocation of workflow resource under many example case.
Therefore, be necessary to define a kind of process description language of simplification and corresponding flow engine, and for the customization that industry characteristic carries out to a certain degree, make the needs of its more realistic application.
Summary of the invention
In order to overcome the above problems, the present invention proposes the process automation method and system in a kind of remote sensing application, and described method comprises:
Visual remote sensing application procedural model is created by procedural model editing machine;
Described visual remote sensing application procedural model is converted to process description language;
Corresponding remote sensing application flow process is performed by process description language described in flow scheduling engine parses.
Further, describedly create visual remote sensing application procedural model by procedural model editing machine, comprising:
Outside remote sensing application processing components is registered as remote sensing application business model;
The visible process programming facility of described procedural model editing machine uses described remote sensing application business model to carry out flow process layout, builds remote sensing application procedural model.
Further, described when outside remote sensing application processing components is registered as remote sensing application business model, the content registered at least comprises one of following:
The title of outside remote sensing application processing components, input-output file form, operating path, Profile Path, software path.
Further, the visible process programming facility of described procedural model editing machine uses described remote sensing application business model to carry out flow process layout, comprising:
Realized by dilatory mode of dragging procedural model element.
Further: layout procedural model based on existing procedure template; Or
Programmed flow process is saved as template for later.
Further, described process description language at least comprises following element:
Flow process, for describing the maximum traffic unit in scheduling process, the process flow diagram in corresponding procedural model, comprising: order stream, gateway, task;
Order stream, for the task of being linked in sequence and gateway;
Gateway, for describing branch in flow process and polymerization;
Task, for describing the minimal service unit in scheduling process, performs a concrete business;
Event, for describing the trigger condition of task;
Attribute, for describing a certain feature of above-mentioned each element;
Script, for controlling above-mentioned each element for user.
Further, in described order stream, add event, and described event can only be added in described order stream to.
Further, described gateway comprises:
Closed gateway, represents and only has all tasks before gateway all to terminate, just can perform gateway task below;
Open gateway, has the task of a branch to terminate as long as represent, can perform gateway task below.
Further, described task comprises:
Normal work to do, script task, manual task, service role, system task.
Further, the mode that issues of described task comprises: routine issues, issue by processing node, temporally issue, temporally issue with processing node.
Further, described event comprises:
Message event, represents ability triggering following task after acquisition message;
Time-event, represents according to regular hour rule triggering tasks;
Data event, represents ability triggering following task after data arrive;
Conditional event, representing could triggering following task when meeting specified requirements;
Parallel event, to represent follow-up work according to parallel condition dynamic decomposition to be multiple parallel task.
Further, described message event represents ability triggering following task after receiving remote sensing process data-message;
Described time-event represents when remote sensing satellite data receipt time arrives then triggering satellite data reception task;
Described data event represents when remotely-sensed data arrives then triggering following treatment scheme;
Described parallel event represents that the cataloguing result for remote sensing long strip data carries out the parallel processing of image.
Process automation system in described remote sensing application, comprising:
Procedural model editing machine, for creating visual remote sensing application procedural model;
Process description language converter, for being converted to process description language by described visual remote sensing application procedural model;
Flow scheduling engine, for resolving described process description language and performing corresponding remote sensing application flow process.
Described process automation system is for performing foregoing remote sensing application process automation method.
Present invention achieves from procedural model editor, process description language generates, to the complete procedure of flow scheduling engine.Visual procedural model first can be converted to self-defining process description language, then perform this process description language by flow engine, thus the automatic operating of realization flow.Solve traditional process dispatcher software and use more complicated, and the operation of Complicated Flow is existed to the problem of all restrictions, meet treatment scheme complicated and changeable in remote sensing application.
Accompanying drawing explanation
Process automation method schematic diagram in a kind of remote sensing application that Fig. 1 provides for embodiment one.
Fig. 2 is visible process figure element example.
Process automation system schematic in a kind of remote sensing application that Fig. 3 provides for embodiment two.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Shown in Figure 1, be the process automation method schematic diagram in a kind of remote sensing application that embodiment one provides, comprising following steps:
S101, create visual remote sensing application procedural model by procedural model editing machine.
Procedural model corresponds to certain business model usually, is the logical abstraction to business model, and shows user in the mode of visualized elements.The remote sensing application processing components of outside is registered as remote sensing application business model by the mode of registration by the present invention.When outside remote sensing application processing components is registered as remote sensing application business model, the content registered at least comprises one of following: the title of outside remote sensing application processing components, input-output file form, operating path, Profile Path, software path.External module only has through registration, and procedural model editing machine can use this assembly.
After obtaining remote sensing application business model through registration, the remote sensing application business model obtained is transferred to visible process programming facility.This visible process programming facility uses described remote sensing application business model to carry out visible process layout, passes through provided visualized graphs operation-interface, and user can create remote sensing application procedural model by dilatory mode of dragging.Constructed remote sensing application procedural model corresponds to specific remote sensing application operation flow.
When utilizing flow process programming facility to carry out flow process layout, programmed flow process can be preserved for later reference, also can select one as template from the flow process previously created, and make flow process layout or amendment further on this basis of template.Drastically increase the establishment efficiency of procedural model by the way, decrease the duplication of labour of user.
S102, described visual remote sensing application procedural model is converted to process description language.
The process description language that the present invention defines is described flow process in the mode of XML language, procedural model is then graphically come to show operation flow to user, described visual remote sensing application procedural model is converted to remote sensing application procedural model that process description language is about to visable representation to graphically and is mapped as corresponding.With the operation flow that XML language mode represents.The process description language that the present invention defines has used for reference international standard XPDL, BPMN, BPEL of current popular, and defines the process description language meeting remote sensing application on this basis.Described process description language at least comprises following element:
Flow process, for describing the maximum traffic unit in scheduling process, the process flow diagram in corresponding procedural model, comprising: order stream, gateway, task;
Order stream, for the task of being linked in sequence and gateway;
Gateway, for describing branch in flow process and polymerization;
Task, for describing the minimal service unit in scheduling process, performs a concrete business;
Event, for describing the trigger condition of task;
Attribute, for describing a certain feature of above-mentioned each element;
Script, for controlling above-mentioned each element for user.
Described in seeing table:
The table 1 process description language list of elements
As follows to the specific descriptions of above-mentioned element:
(1) flow process Process: order stream, gateway, task can be comprised in flow process, just can describe a complete operation flow by these three elements, as shown in Figure 2.Concrete representation is:
Whole process flow diagram in flow process Process is corresponding procedural model, all elements in process flow diagram can be represented by label sequenceFolw, gateWay, task.
(2) order flows SequenceFlow: order stream is a kind of connecting line, and by connecting line by task, gateway couples together, and forms a flow process, as shown in Figure 2.Concrete representation is:
<sequenceFlowid＝”2”name＝”connect1”sourceRef＝”start”targetRef＝”task1”>
<messageEvent></messageEvent>
</sequenceFlow>
Wherein, sourceRef represents the starting elemental of connecting line, and targetRef represents the termination element of connecting line.The value of sourceRef and targetRef can be task, gateway.In addition, in order stream, event can be added, and event can only be added in order stream.As above the messageEvent in example is exactly a kind of message event.
(3) gateway Gateway: gateway, for describing branch in flow process and polymerization situation, solves the layout of Complicated Flow, as shown in Figure 2 by gateway.Gateway comprises closed gateway and open gateway.Closed gateway, represents and only has all tasks before gateway all to terminate, just can perform gateway task below; Open gateway, has the task of a branch to terminate as long as represent, can perform gateway task below.Concrete representation is:
Wherein, incoming represents the order stream of input, and outgoing represents the order stream of output.In addition, this language is not pressed gateway and is classified with gateway or gateway, condition gateway as other language, but this classification event of having given is gone to judge, the connecting line namely after gateway defines event, determines whether perform the flow process after connecting line by event.By this method, simplify the general too complicated problem of gateway in current process descriptive language, simplify the understanding to process description language.
(4) task task: task is the minimal service unit in scheduling process, for performing a concrete business, as shown in Figure 2.Concrete representation is:
<taskid＝”3”name＝”task1”dispatchtype＝”Normal”nodeInfoID＝”1”></task>
Wherein, dispatchtype represents task type, and task agent is containing normal work to do, script task, manual task, service role, system task.The executable module that normal work to do is corresponding general, the most of task of remote sensing is all this generic task; Script task is generally used for complementary process; Manual task refers to that some need to carry out on stream the task of man-machine interaction; Service role refers to the task of needing to call external service; System task refers to the task of needing to call outer part system.Multiple-task type meets the difference needs in remote sensing application.
According to the difference of task, the mode that issues of task is also different, has conventional lower hair style, by hair style under processing node, temporally descends hair style, temporally with hair style under processing node.
In addition, also define many attributes relevant to remote sensing treatment scheme in task, comprising: the operating path of task, the configuration path of task, the software path of task, input/output information of task etc.
(5) event Event: event is the explanation to task trigger condition, it is defined in order stream, and its existence extends the function of original software.
Event comprises polytype, is described in detail below to the event of every type.
Message event: representing could triggering following task after acquisition message.Message event may be used for could triggering following task after receiving remote sensing process data-message.Concrete representation is:
<sequenceFlowid＝”2”name＝”connect1”sourceRef＝”start”targetRef＝”task1”>
<messageEvent> script name </messageEvent>
</sequenceFlow>
Time-event: represent according to regular hour rule triggering tasks.Time-event can be applied to remote sensing satellite data receiver flow process, arrives and then start satellite data reception task when 330 receiving.Concrete representation is:
<sequenceFlowid＝”2”name＝”connect1”sourceRef＝”start”targetRef＝”task1”>
<timeEvent>timeDate=12:00:00; Script=script name </timeEvent>
</sequenceFlow>
Data event: representing could triggering following task after data arrive.Data event can be applied to remotely-sensed data Auto Processing, when remotely-sensed data arrives then triggering following treatment scheme.Concrete representation is:
<sequenceFlowid＝”2”name＝”connect1”sourceRef＝”start”targetRef＝”task1”>
<dataEvent> script name </dataEvent>
</sequenceFlow>
Conditional event: representing could triggering following task when meeting specified requirements.Concrete representation is:
<sequenceFlowid＝”2”name＝”connect1”sourceRef＝”start”targetRef＝”task1”>
<conditionEvent> script name </conditionEvent>
</sequenceFlow>
Parallel event: to represent follow-up work according to parallel condition dynamic decomposition to be multiple parallel task.Parallel event carries out the parallel processing flow process specialized designs of image procossing for the cataloguing result of remote sensing long strip data, but it also has certain versatility.Concrete representation is:
<sequenceFlowid＝”2”name＝”connect1”sourceRef＝”start”targetRef＝”task1”>
<multipleEvent> script name </multipleEvent>
</sequenceFlow>
(6) attribute Attribute: attribute is present in above-mentioned element, for describing a certain feature of above-mentioned each element.
(7) script script: for controlling above-mentioned each element for user.Can run into the process of a lot of Parameter transfer and condition judgment in actual flow process operational process, the result that such as flow process generates above will, as Parameter transfer to flow process below, be gone to process the problems referred to above mainly through script in process description language.Flow scheduling engine provides a large amount of development interfaces for script.Flow scheduling engine defines at input parameter, and output report is resolved, and multiple places such as event judgement provide abundant interface for ones extend.And the Seamless integration-achieved between script and flow scheduling engine, the mutual of parameter can be carried out easily between them.In addition, yet forms both script bank and script is managed, when edit script by choosing the script template in script bank, further editor can be in this template basis, Speeding up development progress.
The present invention is self-defined a kind of process description language, it is two-layer that flow process be divide into process and task by this language.Flow scheduling work all can be placed on flow scheduling engine and perform by this hierarchical structure, adds the dirigibility of scheduling, is conducive to realizing the combination with other Resourse Distribute softwares; Secondly, improve sub-process, gateway, order stream, the concept of event, extends the description scope of general flow descriptive language.
S103, perform corresponding remote sensing application flow process by process description language described in flow scheduling engine parses.
Process description language is the bridge being connected procedural model editing machine and flow scheduling engine, by procedural model is converted to corresponding process description language, can is resolved by flow scheduling engine and perform corresponding remote sensing application flow process.
The visual procedural model for the treatment of scheme in remote sensing application can be showed by the method described in this embodiment one, and procedural model is converted to self-defining process description language; Can provide standard support for flow scheduling engine, flow scheduling engine can develop the flow scheduling software of applicable remote sensing application according to the method, meets treatment scheme complicated and changeable in remote sensing application.
Next, shown in Figure 3, be the process automation system schematic in a kind of remote sensing application that embodiment two provides, comprising such as lower module:
Procedural model editing machine 301, for creating visual remote sensing application procedural model.
Described procedural model editing machine comprises assembly management unit 3011 further, visible process programming facility 3012, and script-editor 3013, and function performed is separately identical with the correlation step in method described in embodiment one, does not repeat them here.
Process description language converter 302, for being converted to process description language by described visual remote sensing application procedural model.
Flow scheduling engine 3 03, for resolving described process description language and performing corresponding remote sensing application flow process.
Present invention achieves from procedural model editor, process description language generates, to the complete procedure of flow scheduling engine.Visual procedural model first can be converted to self-defining process description language, then perform this process description language by flow engine, thus the automatic operating of realization flow.Solve traditional process dispatcher software and use more complicated, and the operation of Complicated Flow is existed to the problem of all restrictions, meet treatment scheme complicated and changeable in remote sensing application.
Embodiment given is above exemplary, just to explaining and technical scheme proposed by the invention being described, and the concrete restriction not to scheme of the present invention.
Claims (14)
1. the process automation method in remote sensing application, is characterized in that, comprising:
Visual remote sensing application procedural model is created by procedural model editing machine;
Described visual remote sensing application procedural model is converted to process description language;
Corresponding remote sensing application flow process is performed by process description language described in flow scheduling engine parses.
2. process automation method according to claim 1, is characterized in that, describedly creates visual remote sensing application procedural model by procedural model editing machine, comprising:
Outside remote sensing application processing components is registered as remote sensing application business model;
The visible process programming facility of described procedural model editing machine uses described remote sensing application business model to carry out flow process layout, builds remote sensing application procedural model.
3. process automation method according to claim 2, is characterized in that, described when outside remote sensing application processing components is registered as remote sensing application business model, and the content registered at least comprises one of following:
The title of outside remote sensing application processing components, input-output file form, operating path, Profile Path, software path.
4. process automation method according to claim 2, is characterized in that, the visible process programming facility of described procedural model editing machine uses described remote sensing application business model to carry out flow process layout, comprising:
Realized by dilatory mode of dragging procedural model element.
5. process automation method according to claim 2, is characterized in that:
Layout procedural model based on existing procedure template; Or
Programmed flow process is saved as template for later.
6. process automation method according to claim 1, is characterized in that, described process description language at least comprises following element:
Flow process, for describing the maximum traffic unit in scheduling process, the process flow diagram in corresponding procedural model, comprising: order stream, gateway, task;
Order stream, for the task of being linked in sequence and gateway;
Gateway, for describing branch in flow process and polymerization;
Task, for describing the minimal service unit in scheduling process, performs a concrete business;
Event, for describing the trigger condition of task;
Attribute, for describing a certain feature of above-mentioned each element;
Script, for controlling above-mentioned each element for user.
7. process automation method according to claim 6, is characterized in that, in described order stream, add event, and described event can only be added in described order stream.
8. process automation method according to claim 6, is characterized in that, described gateway comprises:
Closed gateway, represents and only has all tasks before gateway all to terminate, just can perform gateway task below;
Open gateway, has the task of a branch to terminate as long as represent, can perform gateway task below.
9. process automation method according to claim 6, is characterized in that, described task comprises:
Normal work to do, script task, manual task, service role, system task.
10. process automation method according to claim 6, is characterized in that, the mode that issues of described task comprises: routine issues, issue by processing node, temporally issue, temporally issue with processing node.
11. process automation methods according to claim 6, it is characterized in that, described event comprises:
Message event, represents ability triggering following task after acquisition message;
Time-event, represents according to regular hour rule triggering tasks;
Data event, represents ability triggering following task after data arrive;
Conditional event, representing could triggering following task when meeting specified requirements;
Parallel event, to represent follow-up work according to parallel condition dynamic decomposition to be multiple parallel task.
12. process automation methods according to claim 11, is characterized in that:
Described message event represents ability triggering following task after receiving remote sensing process data-message;
Described time-event represents when remote sensing satellite data receipt time arrives then triggering satellite data reception task;
Described data event represents when remotely-sensed data arrives then triggering following treatment scheme;
Described parallel event represents that the cataloguing result for remote sensing long strip data carries out the parallel processing of image.
Process automation system in 13. 1 kinds of remote sensing applications, is characterized in that, comprising:
Procedural model editing machine, for creating visual remote sensing application procedural model;
Process description language converter, for being converted to process description language by described visual remote sensing application procedural model;
Flow scheduling engine, for resolving described process description language and performing corresponding remote sensing application flow process.
14. process automation systems according to claim 13, is characterized in that, the further enforcement of rights of this system requires the process automation method described in any one of 2-12.
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| CN113010598B (en) * | 2021-04-28 | 2022-11-01 | 河南大学 | Dynamic self-adaptive distributed cooperative workflow system for remote sensing big data processing |
| CN117649108A (en) * | 2024-01-29 | 2024-03-05 | 中国科学院空天信息创新研究院 | Remote sensing satellite data preprocessing monitoring method, device and storage medium |
| CN117649108B (en) * | 2024-01-29 | 2024-04-16 | 中国科学院空天信息创新研究院 | Remote sensing satellite data preprocessing monitoring method, device and storage medium |
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