CN106547537A - One kind realizes assemblnig electric power application software method based on QML technologies - Google Patents

One kind realizes assemblnig electric power application software method based on QML technologies Download PDF

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Publication number
CN106547537A
CN106547537A CN201610883302.7A CN201610883302A CN106547537A CN 106547537 A CN106547537 A CN 106547537A CN 201610883302 A CN201610883302 A CN 201610883302A CN 106547537 A CN106547537 A CN 106547537A
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Prior art keywords
qml
attribute
files
power equipment
technologies
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CN201610883302.7A
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CN106547537B (en
Inventor
杨世江
黄耀德
王海宾
姜岩
李杨
冯飞
张修华
吴丽丽
张瑞敏
陈婧
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China Energy Engineering Group Xinjiang Electric Power Design Institute Co ltd
Shandong Luruan Digital Technology Co ltd Smart Energy Branch
Original Assignee
Co Ltd Of Chinese Energy Construction Group Xinjiang Electric Power Design Inst Wang Dazhi
State Grid Corp of China SGCC
Shandong Luneng Intelligence Technology Co Ltd
Economic and Technological Research Institute of State Grid Xinjiang Electric Power Co Ltd
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00Arrangements for software engineering
    • G06F8/20Software design
    • G06F8/22Procedural
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00Arrangements for software engineering
    • G06F8/30Creation or generation of source code

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  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
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Abstract

The invention discloses one kind realizes assemblnig electric power application software method based on QML technologies, due to mainly including:Realize the attribute dynamic expansion of description power equipment;For the specific function expanding module of Attribute Association of the power equipment of extension;Such that it is able to realize the attribute of power equipment in dynamic expansion software, power equipment attribute is associated with the functional module of property, software and what's new module relation is realized, is reached in the case where source program is not changed, the effect of expanded function, makes the operation of power equipment more stable.

Description

One kind realizes assemblnig electric power application software method based on QML technologies
Technical field
The present invention relates to Automation of Electric Systems software supervision technical field, in particular it relates to a kind of be based on QML technology realities Existing assemblnig electric power application software method.
Background technology
In Automation of Electric Systems monitoring field, computer software application is extensive, wherein with the software of c/c++ language developments The overwhelming majority is account for, the advantage developed using c/c++ is that the language is easy to understand, execution efficiency is high, hardware resource utilization fills Divide, can transplant on a variety of hardware platforms.But also there is a requirement using c/c++, that is, program has to pass through compiling, produce After executable code, could run on the target machine, this point to our directly affecting of bringing is, to c++ softwares Any modification, just will can rerun after recompilating deployment.These modifications include that software bug corrigendums, function increase Plus, be during applied software development use inevitably.The mode for solving the problem at present is, by software modularity, to adopt Main program adds the mode development deployment software of dynamic base, each intermodule to be communicated by the interface of prior design.
During the present invention is realized, inventor is at least present in finding prior art by software modularity, using master Program adds the mode of dynamic base, solves the problem to a certain extent.If one is changed just in a certain of composition software In individual or several modules, then correlation module is only changed, then recompilate and replace these modules.What but we ran into Most of modification all exceed this and limits, and is directed not only to several modules, and is related to the interface of intermodule, and this results in change nothing Method is limited in a small range, changes and can spread to bigger scope by the variation of interface, results in the need for compiling the part replaced Increase.Both work had been increased, the risk after software upgrading had been also increased.
The content of the invention
It is an object of the present invention to be directed to the problems referred to above, propose that one kind realizes assemblnig electric power application based on QML technologies Software approach, to realize the attribute of power equipment in dynamic expansion software, realizes based on qml technologies, by device attribute with it is new Functional module is reached in the case where source program is not changed, the effect of expanded function to association.
For achieving the above object, the technical solution used in the present invention is:One kind realizes assemblnig electric power based on QML technologies Application software method, mainly includes:
Step 1:Realize the attribute dynamic expansion of description power equipment;
Step 2:The specific function expanding module of Attribute Association of the power equipment to extend in step 1.
Further, the step 1 includes:
Step 11:Build general class to describe for all of power equipment, make the language-specific of power system computation machine software That what is write is partially stabilized;
Step 12:A QML file is set up for each power equipment, the different attribute of all power equipments is placed into each QML files in.
Further, in step 11, the general class includes the attribute of a QML file for recording needs loading Qmlurl, one be used for reading method loadQml () of QML files, one be used for parsing QML files, and wherein will record Attribute logging constitutes method addDynamicPro () and a use to unique apparatus description in the description class of equipment To generate method propertyDescs () that Chinese is explained for each attribute.
Further, the step 2 includes:
Step 21:One function module ModelPlugin is set up, dynamic attribute is loaded by QML files and dynamic attribute is registered Method, external interface class ModelInterface of functional module ModelPlugin is registered as being available for QML files direct The object for using, realization can be used directly all methods of external interface class ModelInterface in any QML files;
Step 22:The dynamic attribute that functional module ModelPlugin is increased newly with equipment is associated, the mesh of extended software function is reached 's;
Step 23:In the power equipment class of main program, the QML files measyc.qml of the same name, Ran Houyong of dynamic attribute are loaded Method call function invokeMethod () of QML objects, directly invokes the interface letter to main program disclosed in measyc.qml Number interfaceFunc (), just realizes associating between main program and extended function module so as to pass through qml files, without Modification main program.
Further, loaded by QML files in the step 21 and dynamic attribute registration method, including following step Suddenly:
Step 211:Judge that the QML files that qmlurl is pointed to whether there is, the execution step 212 if existing otherwise terminates loading And registration process;
Step 212:Format checking is carried out by QML engines to QML files, and QML files are converted to the object in internal memory, such as Fruit is changed successfully, then execution step 213, there is mistake, and terminate loading and registration process in otherwise pointing out user's QML files;
Step 213:The all properties of convenient QML objects, are added in the power equipment object that C++ writes one by one;
Step 214:Chinese comments are set for each new dynamic attribute, and terminates loading and registration process.
One kind of various embodiments of the present invention realizes assemblnig electric power application software method based on QML technologies, due to main Including:Realize the attribute dynamic expansion of description power equipment;For the specific Function Extension of Attribute Association of the power equipment of extension Module;Such that it is able to realize the attribute of power equipment in dynamic expansion software, functional module of the power equipment attribute with property is closed Connection, realizes software and what's new module relation, reaches in the case where source program is not changed, the effect of expanded function.
Other features and advantages of the present invention will be illustrated in the following description, also, partly be become from specification Obtain it is clear that or being understood by implementing the present invention.
Below by drawings and Examples, technical scheme is described in further detail.
Description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for specification, the reality with the present invention Applying example is used for explaining the present invention together, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is that one kind of embodiment of the present invention description realizes electric power in assemblnig electric power application software method based on QML technologies Device software C++ part and the part relations figure of QML;
Fig. 2 is based on QML technologies, one kind of embodiment of the present invention description realizes that qml is literary in assemblnig electric power application software method Part is loaded and dynamic attribute registration process figure.
Specific embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that preferred reality described herein Apply example and be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Specifically, one kind realizes assemblnig electric power application software method based on QML technologies, mainly includes:
Step 1:Realize the attribute dynamic expansion of description power equipment;
Step 2:The specific function expanding module of Attribute Association of the power equipment to extend in step 1.
Further, the step 1 includes:
Step 11:Build general class to describe for all of power equipment, make the language-specific of power system computation machine software That what is write is partially stabilized;
Step 12:A QML file is set up for each power equipment, the different attribute of all power equipments is placed into each QML files in.
In step 11, the general class include one for record needs loading QML files attribute qmlurl, one Individual method loadQml () for reading QML files, one be used for parsing QML files, and by the attribute logging for wherein recording To in the description class of equipment, constitute method addDynamicPro () described to unique apparatus and one is used for being various Attribute generates method propertyDescs () that Chinese is explained.
The step 2 includes:
Step 21:Set up One function module ModelPlugin, loaded by QML files and dynamic attribute registration method, will It is right that external interface class ModelInterface of functional module ModelPlugin is registered as being available for QML files directly to use As realization can be used directly all methods of external interface class ModelInterface in any QML files;
Step 22:The dynamic attribute that functional module ModelPlugin is increased newly with equipment is associated, the mesh of extended software function is reached 's;
Step 23:In the power equipment class of main program, the QML files measyc.qml of the same name, Ran Houyong of dynamic attribute are loaded The invokeMethod () method of QML objects, directly invokes the interfaceFunc () method in measyc.qml, so as to logical Cross qml files and just realize associating between main program and extended function module, without changing main program.
Loaded by QML files in the step 21 and dynamic attribute registration method, comprise the following steps:
Step 211:Judge that the QML files that qmlurl is pointed to whether there is, the execution step 212 if existing otherwise terminates loading And registration process;
Step 212:Format checking is carried out to QML files by QML engines, QML files are converted to the object in internal memory, if Change successfully, then execution step 213, there is mistake in otherwise pointing out user's QML files, and terminate loading and registration process;
Step 213:The all properties of convenient QML objects, are added in the power equipment object that C++ writes one by one;
Step 214:Chinese comments are set for each new dynamic attribute, and terminates loading and registration process.
In the method, electric power application software still follows modularized design principle, but during module assembled, no longer continues to use tradition Method of interface, but be based on QML technologies, design the connection between each functional module and main program, these connections need not Compiling.When functional module is increased for software, more new range can should be effectively controlled in this way.
In order to realize assemblnig electric power application software, need to realize at 2 points:One is that the power equipment described in software can With dynamic expansion attribute;Two is for specific expansion module in new Attribute Association.This method realizes this 2 points concrete scheme such as Under.
(1)The attribute of dynamic expansion power equipment
In order that in software C++ write it is partially stabilized, we are that all power equipments build general class to describe;And in order to Represent the different attribute of various equipment, we set up a qml file for each equipment, and the different attribute of equipment is put into In respective qml files.So, no matter which kind of attribute increased for equipment later, need not all changes the part that C++ writes, and Only need to increase corresponding attribute in the qml files of their own.
In software, the relation of C++ parts and qml parts is as shown in Figure 1.In Fig. 1, in general description class, have one it is heavy The attribute wanted:Qmlurl, and three important methods:LoadQml (), addDynamicPro () and propertyDescs (). Attribute qmlurl is used for recording the qml files for needing loading;Method loadQml () is for reading qml files;Method AddDynamicPro () is for parsing qml files, and by the attribute for wherein recording, the equipment of being registered to is described in class, thus May be constructed a description to unique apparatus;Due in programming process all using English character, so our users Method propertyDescs () to generate Chinese explanation for each attribute, and convenient Chinese user uses.Whole qml files loading and Dynamic attribute registration process as shown in Fig. 2
(2)Dynamic attribute associates expansion module
The Part I of this method realizes the function of increasing attribute for power equipment dynamic, but only with the addition of some attributes also Not enough, the extension of software is all extension functionally, so, Part II will be embodied as function new in these new Attribute Associations Module.This function is realized,, still based on qml, concrete steps are divided into three steps for we.
The first step, we develop One function module ModelPlugin, the plug-in registration method provided by qml, will External interface class ModelInterface of ModelPlugin is registered as the object for being available for qml files directly to use, so, Can directly using all methods of ModelInterface arbitrarily in qml files.
Second step, the dynamic attribute that the ModelPlugin is increased newly with equipment is associated by we, reaches extended software The purpose of function.Here we by taking " remote measurement " attribute of transformer in Fig. 1 as an example, the attribute is defined in dynamic in qml files State attribute, its unique designation are set to measyc, and the mark freely can be defined, after mark determines, we create one it is of the same name Qml file measyc.qml, define one in this document and are available for main program, the interface function that power equipment class is used in other words InterfaceFunc (), the method that can arbitrarily call ModelInterface to provide in interfaceFunc (), so, just Set up the association between measyc.qml files and functional module ModelPlugin.
3rd step, we load the qml files of the same name of dynamic attribute in the power equipment class of main program Measyc.qml, is then directly invoked in measyc.qml with the invokeMethod () method of qml objects InterfaceFunc () method, is so achieved that associating between main program and extended function module by qml files, and Main program need not be changed completely.
Generally, the interface between c++ software modules needs to design in advance, and interface is just integrally fixed inside program , interface is exactly a part for program in other words.Any modification, when it come to interface, then must reappear all uses of compiling Interface and the part for realizing interface.The present invention had both been directed to the problem, interface was extracted from c++ programs, compiling The QML configuration files translated so as to reduce impact of the modification to whole software as far as possible, and can use the method realizing Extend the function of original software.
The innovative point of the present invention:
(1)Based on qml technologies, the attribute of power equipment in dynamic expansion software.
(2)Based on qml technologies, by device attribute and new functional module to associating.
(3)It is based on(1)With(2), software and newly-increased module relation are realized, are reached in the case where source program is not changed, The effect of expanded function.
Following beneficial effect can at least be reached:When the partial function of large software needs change, or during addition function, Can avoid recompilating the whole software of deployment using the method, change is limited in into a small range, so as to greatly reduce becoming Operation risk after more, improves the stability of Operation of Electric Systems.
Finally it should be noted that:The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, Although being described in detail to the present invention with reference to the foregoing embodiments, for a person skilled in the art, which still may be used To modify to the technical scheme described in foregoing embodiments, or equivalent is carried out to which part technical characteristic. All any modification, equivalent substitution and improvements within the spirit and principles in the present invention, made etc., should be included in the present invention's Within protection domain.

Claims (5)

1. one kind realizes assemblnig electric power application software method based on QML technologies, it is characterised in that comprise the following steps:
Step 1:Realize the attribute dynamic expansion of description power equipment;
Step 2:The specific function expanding module of Attribute Association of the power equipment to extend in step 1.
It is 2. according to claim 1 that assemblnig electric power application software method is realized based on QML technologies, it is characterised in that The step 1 includes:
Step 11:Build general class to describe for all of power equipment, make the language-specific of power system computation machine software That what is write is partially stabilized;
Step 12:A QML file is set up for each power equipment, the different attribute of all power equipments is placed into each QML files in.
It is 3. according to claim 2 that assemblnig electric power application software method is realized based on QML technologies, it is characterised in that In step 11, the general class includes the attribute qmlurl of a QML file for recording needs loading, one for reading Take method loadQml () of QML files, one be used for parsing QML files, and by the attribute logging for wherein recording to equipment In description class, constitute method addDynamicPro () described to unique apparatus and one is used for generating for each attribute Method propertyDescs () that Chinese is explained.
It is 4. according to claim 3 that assemblnig electric power application software method is realized based on QML technologies, it is characterised in that The step 2 includes:
Step 21:One function module ModelPlugin is set up, dynamic attribute is loaded by QML files and dynamic attribute is registered Method, external interface class ModelInterface of functional module ModelPlugin is registered as being available for QML files direct The object for using, realization can be used directly all methods of external interface class ModelInterface in any QML files;
Step 22:The dynamic attribute that functional module ModelPlugin is increased newly with equipment is associated, the mesh of extended software function is reached 's;
Step 23:In the power equipment class of main program, the QML files measyc.qml of the same name, Ran Houyong of dynamic attribute are loaded Method call function invokeMethod () of QML objects, directly invokes the interface letter to main program disclosed in measyc.qml Number interfaceFunc (), just realizes associating between main program and extended function module so as to pass through qml files, without Modification main program.
It is 5. according to claim 4 that assemblnig electric power application software method is realized based on QML technologies, it is characterised in that Dynamic attribute, and the method for registering dynamic attribute are loaded by QML files in the step 21, is comprised the following steps:
Step 211:Judge that the QML files that qmlurl is pointed to whether there is, the execution step 212 if existing otherwise terminates loading And registration process;
Step 212:Format checking is carried out by QML engines to QML files, and QML files are converted to the object in internal memory, such as Fruit is changed successfully, then execution step 213, there is mistake, and terminate loading and registration process in otherwise pointing out user's QML files;
Step 213:The all properties of convenient QML objects, are added in the power equipment object that C++ writes one by one;
Step 214:Chinese comments are set for each new dynamic attribute, and terminates loading and registration process.
CN201610883302.7A 2016-10-10 2016-10-10 Method for realizing assembled electric power application software based on QML technology Active CN106547537B (en)

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CN108829462A (en) * 2018-06-21 2018-11-16 安徽大中润科技有限公司 A kind of display methods of information, system and plug-in management platform

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