WO2017177695A1

WO2017177695A1 - Method and system for development and integration of application in numerical control system

Info

Publication number: WO2017177695A1
Application number: PCT/CN2016/108537
Authority: WO
Inventors: 杨建中; 惠恩明; 马驰飞; 王平; 陆永亮; 李纪柳
Original assignee: 华中科技大学
Priority date: 2016-04-15
Filing date: 2016-12-05
Publication date: 2017-10-19
Also published as: CN105912339B; CN105912339A

Abstract

A method for the development and the integration of an application in a numerical control system, comprising: defining layout parameters of an application in a QML script or defining layout parameters or invoking a graphics library in a dynamic library, so as to form a user interface of the application in an HMI; writing a numerical control functional module corresponding to the application in the QML script or dynamic library, the numerical control functional module invoking an interface of a numerical control system to obtain running state data of the numerical control system for processing, thereby implementing a corresponding numerical control function which is fed back to a user by means of the user interface. By means of the method, the development and the integration of an application in a numerical control system can be implemented. The method is not only suitable for different types of numerical control systems, but can also ensure that the numerical control systems become simple and reliable while ensuring that the real-time control and non-real-time large-scale data processing can be completed.

Description

Development and integration method and system for application in numerical control system

[Technical Field]

The invention belongs to the field of numerical control technology, and particularly relates to a development and integration method and system for application in a numerical control system.

【Background technique】

In order to complete the CNC machining and other functions, the CNC system needs to integrate the corresponding function modules in the CNC system. Generally speaking, in the current numerical control system, the manufacturer integrates a series of functional modules at the factory, and usually integrates the corresponding functional modules into the internal control software of the numerical control system, such as interpolation operation, decoding processing, etc., which can satisfy certain Functional requirements.

However, with the development of intelligent manufacturing requirements and the individualized needs of users, it is necessary for the CNC system to move towards diversification, requiring more and more additional functions of the CNC system, such as process parameter optimization, G code fitting and optimization. In order to meet the above requirements, the CNC system manufacturer sets the corresponding interface in it, and the user can carry out secondary development on the basis of it for integration in the numerical control system.

However, the current CNC system development is still an independent business behavior of CNC manufacturers. Strict commercial secrecy behavior still hinders the further development of the secondary development of CNC systems. In addition, even if CNC system manufacturers provide a rich secondary development interface for CNC systems, developers and The viscosity of the CNC system is still very high. Developers need to undergo professional training to understand the development mode of each module of the corresponding CNC system in order to complete the secondary development of a specific CNC system.

In addition, even if the user can conveniently develop the intelligent application of the numerical control system and complete the real-time control and non-real-time large-scale data processing request, the numerical control system needs to consume a large amount of system resources, resulting in overloading of the numerical control system and performance degradation; The CNC system works normally. It needs to use high-performance multi-CPU structure and large-scale integrated circuit to upgrade the CNC system hardware. This leads to more complicated CNC system and servo drive system platform, and the design and manufacturing cost, upgrade and use cost increase sharply, and the reliability decreases. . In particular, too many applications or functions integrated in the numerical control system may cause the numerical control system to be too bloated and complicated. On the one hand, the system operation or control efficiency is lowered, on the other hand, the system may be unstable, and in severe cases, the numerical control system may be affected. Safety.

Patent document CN104298175B discloses a numerical control system and method based on virtualization technology, wherein the numerical control system comprises a local numerical control device and a remote server, which is localized. The numerical control device network interconnection is used for processing non-real-time tasks, including G code programming, decoding, processing simulation, and at the same time, an added value function can be realized; wherein the server end and the numerical control device are installed on the numerical control device The client implements interconnection, and the client runs on the numerical control device system, and realizes virtual operation of the server on the human interaction device of the numerical control device by using virtual technology, thereby realizing operation control of the server on the local numerical control device, and then both Complete coordination and coordination to achieve CNC machining control.

By adopting a remote server combined with virtual technology, the solution can effectively reduce the impact on the hardware structure and resource consumption of the numerical control system, and at the same time, can reduce the complexity and bloat of the numerical control system to a certain extent, and avoid system operation or control efficiency reduction. However, the above-mentioned schemes still have secondary developments that rely heavily on the corresponding types of numerical control systems, which are difficult to develop, and their bloating and mitigating effects on the numerical control system are generally in general, which will still lead to the continuous expansion and bloating of the numerical control system, affecting system stability and safety. Sex.

[Summary of the Invention]

In view of the above defects or improvement requirements of the prior art, the present invention provides a development and integration method and system for an application in a numerical control system, which enables application development in a numerical control system through improved application integration means and the advantages of cloud computing. Simple and reliable integration, not only can be applied to a variety of different types of CNC systems, but the CNC system is simple and reliable while ensuring real-time control and non-real-time large-scale data processing.

In order to achieve the above object, according to an aspect of the present invention, a method for developing and integrating an application in a numerical control system is provided, which directly develops and integrates each numerical control processing function module as an independent application in a human-machine interaction interface (HMI). To achieve convenient integration of applications in the CNC system, including:

Defining the shape parameters of the application in the QML script, or defining the shape parameters in the dynamic library or calling the graphics library to form the user interface of the application in the HMI;

Writing a corresponding numerical control function module in the QML script or the dynamic library, the numerical control function module calls the numerical control system interface to acquire the running state data of the numerical control system for processing, thereby realizing the corresponding numerical control function, and the corresponding numerical control function passes the user The interface is fed back to the user;

Through the above methods, the development and integration of applications in the numerical control system can be realized.

As a further preferred embodiment of the present invention, the user interface for forming an application in the HMI is specifically: the HMI receives a message sent by the user through its message response function, and then opens a user interface of the corresponding application, thereby forming a corresponding application in the HMI. User Interface.

As a further preferred embodiment of the invention, the profile parameters include interface size, shape, color, and location.

As a further preferred embodiment of the present invention, the numerical control function module is a module including a local application installation path, and the local application is used to implement a corresponding numerical control function, and the numerical control function module opens the local application through the installation path to implement a corresponding numerical control. Features.

As a further preferred embodiment of the present invention, the numerical control system is a numerical control system having a cloud server, the numerical control function module is a module including a cloud server address, and an application for implementing a corresponding numerical control function is issued on the cloud server, the numerical control The function module invokes the application on the cloud server through the address, thereby implementing the corresponding numerical control function.

As a further preferred embodiment of the present invention, the application published on the cloud server can be published to the cloud server through a Web service.

The invention also discloses a development and integration system for an application in a numerical control system, which realizes the development and integration of each numerical control processing function module as an independent application directly in a human-machine interaction interface (HMI), thereby realizing the application in the numerical control system. Easy to integrate, including:

A user interface development integration module for forming an application user interface in an HMI, which is implemented by defining a shape parameter of an application in a QML script, or defining a shape parameter in a dynamic library or calling a graphics library;

as well as

The numerical control function module is realized by writing a corresponding numerical control function module in the QML script or the dynamic library, and the numerical control function module is used for calling the numerical control system interface to acquire the running state data of the numerical control system for processing, thereby realizing the corresponding numerical control function. And feedback to the user through the user interface.

As a further preferred embodiment of the present invention, the user interface for forming an application in the HMI is specifically that the HMI receives a message sent by the user through its message response function, thereby opening a user interface of the corresponding application, thereby forming a user interface in the HMI.

As a further preferred embodiment of the present invention, the numerical control function module is a module including a local application installation path, and the local application is used to implement a corresponding numerical control function, and the numerical control function module opens the local application through the installation path to implement a corresponding CNC function.

As a further preferred embodiment of the present invention, the numerical control system is a numerical control system having a cloud server, the numerical control function module is a module including a cloud server address, and the cloud server is provided with an application for implementing a corresponding numerical control function, the numerical control The function module invokes the application on the cloud server through the address, thereby implementing the corresponding numerical control function.

In general, the above technical solutions conceived by the present invention have the following advantages compared with the prior art. Benefit effect:

(1) In the development integration method of the present invention, the integration is developed in the form of a QML script or a dynamic library, and the interface of the application and the function development are simple, so that the secondary development of the numerical control system is good in generality, and the development integration difficulty is significantly reduced.

(2) The development integration method of the invention can enable the user to easily and easily integrate the secondary development of the numerical control system and the intelligent application, and at the same time, by calling the cloud application, using the cloud resources to realize the numerical control system function, and avoiding the intelligent upgrade of the numerical control system software. When the transition consumes CNC hardware resources, the performance of the CNC system is degraded, or the hardware upgrade of the CNC system software forces the hardware upgrade to cause a sharp increase in cost and reliability, ensuring that the CNC system is simple, reliable, and easy to upgrade.

(3) In the development integration method of the present invention, mature functional modules or applications can be fully utilized, and integration can be performed only by encapsulating the installation path or address through a QML script or a dynamic library.

(4) In the development integration method of the present invention, the numerical control function module can call the cloud application, so that the cloud application and the cloud resource fully serve the numerical control system, and the local hardware can complete the functions that the traditional numerical control system cannot complete without upgrading, and the intelligentization is cancelled. Applying the stringent requirements of the hardware resources of the numerical control system, the user only needs to develop the intelligent application of the numerical control system, without considering whether the hardware of the numerical control system will be overloaded, the performance is degraded, or even the function cannot be completed, and the complex application is published in the WebService technology. In the cloud, whenever and wherever users need to know the input and output of the cloud function interface and the site, the cloud application can be called through the network.

[Description of the Drawings]

1 is a schematic diagram of an application development and integration method of the present invention;

2 is a schematic diagram of an application of the application development and integration method of the present invention applied to a cloud server with a cloud server when the numerical control function module calls an application on the cloud server.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Further, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.

When the user performs secondary development on the numerical control system, it is necessary to consider the hardware resources of the numerical control system to avoid excessive consumption of resources by the application, resulting in a decline in the numerical control system card machine and performance. The method proposed by the present invention allows the cloud to be abundance. The rich hardware resources serve the numerical control system, and the restrictions on the secondary development of the user's hardware resources are eliminated.

As shown in FIGS. 1 and 2, the application development and integration method of the numerical control system proposed by the present invention directly develops and integrates each numerical control processing function module as an independent application in a human-computer interaction interface (HMI). Thereby achieving convenient integration of applications in the numerical control system, specifically including:

In the present invention, the QML script or the dynamic library can be integrated, or the application can be directly integrated through the QML script. Preferably, all local applications are integrated in an HMI (Human Machine Interface), and the user invokes various applications through the HMI. In the invention, by defining the shape parameters of the interface in the QML script, developing the function module, and calling the numerical control system interface to obtain the running state data of the numerical control system, the application can be conveniently developed; when the application requirements are complex, a plurality of third-party libraries need to be called. When the QML script cannot be implemented, the application can be packaged into a dynamic library and integrated into the HMI. If the mature software can implement the required functions, the local application can be directly integrated by using the QML script without having to perform the second time. Development, which greatly reduces the workload of secondary development. If the local application needs the running status data of the CNC system, it can call the CNC system interface in the QML script and input the data into the local application.

In one embodiment, taking the Huazhong 8-type numerical control system as an example, the specific process of integrating the local application and the cloud application into the HMI of the Huazhong 8-type numerical control system and its startup and calling modes are elaborated.

In this embodiment, the application is integrated in the form of a QML script or a dynamic library, and the interface design and function of the application integration in the HMI is realized by calling the NCK (Numerical Control System Interface Function Kernel) corresponding to the Huazhong 8-type numerical control system. . The schematic diagram of the application development and integration method of the present invention is shown in the figure. The schematic diagram of the numerical control function module calling the application on the cloud server is shown in FIG. 2 . The QML script or dynamic library can define the shape parameters of the local application user interface, the message response function, and the numerical control function module that realizes the application requirements.

Of course, the NCK in this embodiment is for the CNC system interface corresponding to the Huazhong 8-type numerical control system. If it is another numerical control system, the corresponding numerical control system interface can also be used. Generally speaking, the numerical control system is connected. The interface encapsulates the interface function of the axis name, the axis type, the channel number corresponding to the logic axis, the axis current, the axis error, the parameter data and the like, and is used to obtain the running state data of the numerical control system.

QML scripts can be written in Qt Quick, and dynamic libraries can be written in Qt, such as complex local applications for interface design and functions, integrated into HMI using dynamic libraries, and local applications with simple interface design and single function, using QML scripts. Integrated into the HMI.

When the user invokes the application through the HMI, the QML script and the message response function in the dynamic library capture the message sent by the user, generate a local application user interface according to the shape parameter, and the QML script or the dynamic library calls the numerical control system interface to access the running state data of the numerical control system. The numerical control function module that realizes the numerical control function is called to complete the numerical control function of the local application.

In one embodiment, the application development and integration are directly performed in the form of a QML script. The embodiment includes defining a shape parameter of the interface in the QML script, writing and calling the numerical control function module, and calling the NCK to obtain the running state data of the numerical control system as The input of the numerical control function module can complete the corresponding functions, and the application can be conveniently developed. For example, directly developing and integrating a main machining interface for displaying the position of each coordinate system during machining of the machine, the display of the machining program, and the main parameters and state of the current machine tool processing, preferably can be used as an HMI startup interface, and the specific implementation manner can be as follows:

First, the QML script defines the shape of the top status bar, bottom menu, right menu, position, color, background image parameters and text box of the main processing interface. In the right menu and bottom menu, the nested definition can be switched to Buttons on the tool management interface, buttons to switch to system parameters PLC, etc. At the same time, the interface of the NCK of the Huazhong 8 type is called to access machine coordinates, workpiece coordinates, residual feed, load current, machine tool feedrate, machine actual feedrate, spindle actual feedrate, spindle command feedrate, etc. The corresponding main machining interface chart is transmitted and displayed.

The data in the text box can also be updated periodically by calling a timer in the local QML script. The message response function in the QML script responds to the message of the user switching interface.

In one embodiment, the application requirements are complex, and a third-party library needs to be called. When the application is developed, the numerical control function module is written and called, the data acquired by the NCK is processed, the corresponding function is completed, or the third-party library is called, and the processing is performed by the NCK. The acquired data, complete the corresponding functions, and then package the application into a dynamic library, you can easily develop and integrate the application. For example, in order to dynamically display the relative motion of the machine tool and the tool during the machining process, and check whether there is a collision in the machining process, the machine collision avoidance software can be developed and integrated, and the specific implementation manner is as follows:

The machine anti-collision software is developed in a dynamic library form and integrated in the HMI. The OpenGL is used to write a three-dimensional graphic display interface. The open source collision detection library coldet checks whether the image has a collision. The shape parameter of the three-dimensional graphic display area is defined in the dynamic library, and the definition is called at the same time. The NCK interface access tool coordinates, the actual feedrate of the machine, the workpiece coordinate, and the actual feedrate of the workpiece are sent to the 3D graphic display interface, which dynamically displays the relative motion of the workpiece and the tool, and checks whether the tool and the workpiece collide in real time through coldet.

In one embodiment, the local application can be directly integrated by using the QML script, which is convenient for the user to call any local application at any time, and facilitate centralized management of the local application, thereby greatly reducing the workload of the user's secondary development.

For example, in HMI, the local application is integrated into the intelligent application center interface. The specific implementation process of the intelligent application center interface is as follows: the intelligent application center interface is developed and integrated in the form of QML script, and the QML script defines all the local parameters such as process parameter optimization software. The shape parameter of the application, the installation path of the local application is given, and the message response function of the local application is defined. After the QML script is loaded, after the user triggers the message response function through the keyboard or the mouse, the message response function is installed according to the local application. Open the local app.

By integrating the local application installed on the local hardware in the intelligent application center interface, when the CNC system is redeveloped, if the mature software can realize the required functions, it is not necessary to repeat the secondary development.

When a local application is integrated through a local application, all local applications are integrated into the HMI through a QML script. Specifically, the local application installation path is first written into the QML script. After the HMI generates the local application interface, the user passes the local application interface. When a local application is invoked, the message response function in the QML script captures the message sent by the user, and the message response function opens the local application according to the local application installation path. In this way, the integration of local applications in the CNC system can be achieved.

In one embodiment, in order to ensure that the numerical control system can not only fulfill the non-real-time large-scale data processing requirements of the user, but also avoid the problem of excessive cost or stability degradation caused by upgrading the numerical control system, the numerical control system cannot be completed or may cause the numerical control system to exceed The application of the load work is put into the cloud virtual server, and the cloud application is published on the cloud server as a site through the WebService technology, and the local application can access the cloud application by accessing the site.

The numerical control system in this embodiment is implemented on the basis of the cloud numerical control architecture, which relies on the numerical control system and the cloud. In this embodiment, the numerical control system includes a local numerical control device and a cloud server, wherein the local numerical control device generally includes local hardware and a local functional module mounted thereon, such as a main processing interface, Tool management, etc., are generally real-time control functions and / or local hardware resources to meet the application's requirements for resource requirements. In the present invention, the local function module is packaged as a separate application and installed on the hardware of the local numerical control device, and integrated through the HMI for ease of use, which can be called a local application, that is, the local application is developed on the local hardware. A collection of intelligent applications.

The cloud includes cloud hardware and cloud function modules running on it, such as a machine learning library, etc., generally non-real-time control functions and/or functional modules that need to process large-scale data and local hardware resources cannot meet application requirements for resources. In the present invention, the corresponding functional module is packaged as an application, and as a set of intelligent applications developed on the cloud hardware, it can be called a cloud application.

The local numerical control device and the cloud server communicate in real time through the network.

On the cloud virtual machine, the application is published on the site as an interface function through the WebService technology. The local application can access the cloud application by accessing the site through the network. After the cloud application obtains the cloud hardware resource to complete the application, the cloud application sends the result to the local network. application.

In this embodiment, in order to optimize the process parameters, the process parameter optimization software is developed, and the implementation mechanism is as follows:

Factor 1000 CNC machine tools with 1000Hz frequency, 16 channels all-weather acquisition of CNC machine data data up to 3G, to deal with such large-scale data, the traditional CNC system is basically helpless, even if the amount of data is as small as hundreds of megabytes, for a single CPU CNC system Still need to consume its large resources, resulting in CNC system card machine, performance degradation, upgrading the CNC system hardware resources can still meet the hardware requirements of process parameter optimization, but will bring design and manufacturing costs, upgrade and use costs increased dramatically, reliability The problem of falling. In this embodiment, the optimization algorithm commonly used in the process parameters is encapsulated into the cloud site through the WebService technology, and the local application needs for the local hardware resources can be transferred to the cloud application for the cloud hardware resources, thereby making the local hardware easy. Complete various tasks. Among them, the process parameters optimization software allows the cloud application to fully serve the numerical control system as follows:

Step1: Call the NCK to obtain process parameter data, such as feed rate;

Step2: use the network to transmit the operating state data of the numerical control system required by the process parameters to the cloud server that releases the machine learning library, and call the machine learning library to complete the process parameter optimization;

Step3: The server returns the result to the process parameter optimization software through the network to optimize the process parameters.

In this embodiment, the local application invokes the cloud application, so that the cloud application and the cloud resource are fully used as the numerical control system. Service, the local hardware can complete the functions that the traditional CNC system can't complete without upgrading, and the strict requirements of the intelligent system for the hardware resources of the CNC system are eliminated. The user only needs to develop the intelligent application of the CNC system, no need to consider whether the CNC system hardware will load. Excessively heavy, performance is degraded, and even functions cannot be completed. WebService technology is used to publish complex applications on the cloud server. Whenever and wherever, users only need to know the input and output of the cloud application and the site address, and then call the cloud through the network. application.

In the invention, the data access interface is encapsulated in the interface of the numerical control system, and the QML script, the dynamic library and the local application are used, and the user only needs to define the shape parameters of the user interface, and write the numerical control function module for realizing the application requirement as needed, which way is desired Open the app and define the corresponding message response function to develop the local app quickly and easily.

In addition, WebService has cross-language features, users can use C++, JAVA, C# and other languages to develop cloud applications, which reduces the development difficulty of cloud applications. After simple training, users understand QML scripts, dynamic libraries, CNC system interfaces, and cloud applications. The secondary development of the numerical control system can be carried out, which greatly reduces the viscosity of the developer and the numerical control system.

At the same time, the local application is integrated into the HMI through QML scripts, dynamic libraries, and local applications, so that users can call all local applications and cloud applications through a local application, which is friendly and convenient to use.

Those skilled in the art will appreciate that the above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and scope of the present invention, All should be included in the scope of protection of the present invention.

Claims

A method for developing and integrating an application in a numerical control system, which directly realizes the integration and integration of various numerical control processing function modules as independent applications in a human-computer interaction interface (HMI), thereby realizing the convenient integration of applications in the numerical control system, specifically including :

Defining the shape parameters of the application in the QML script, or defining the shape parameters in the dynamic library or calling the graphics library to form the user interface of the application in the HMI;

Writing a corresponding numerical control function module in the QML script or the dynamic library, the numerical control function module is used to call the numerical control system interface to acquire the running state data of the numerical control system for processing, thereby implementing a corresponding numerical control function, and passing the user interface Feedback to the user;

Through the above methods, the development and integration of applications in the numerical control system can be realized.
The method for developing and integrating an application in a numerical control system according to claim 1, wherein the user interface forming the application in the HMI is specifically: the HMI receives the message sent by the user through its message response function, and then opens the corresponding The user interface of the application forms a user interface in the HMI.
The method of developing and integrating an application in a numerical control system according to claim 2, wherein the shape parameter comprises an interface size, a shape, a color, and a position.
The method for developing and integrating an application in a numerical control system according to any one of claims 1 to 3, wherein the numerical control function module is a module including a local application installation path, and the local application is used to implement a corresponding The numerical control function, the numerical control function module opens the local application through the installation path to implement the corresponding numerical control function.
The method for developing and integrating an application in a numerical control system according to any one of claims 1 to 3, wherein the numerical control system is a numerical control system having a cloud server, and the numerical control function module is a cloud server address. The module, the cloud server is provided with an application for implementing a corresponding numerical control function, and the numerical control function module invokes an application on the cloud server through the address, thereby implementing a corresponding numerical control function.
The method for developing and integrating an application in a numerical control system according to claim 5, wherein the application set on the cloud server is published on the cloud server through a Web service.
A development and integration system for application in a numerical control system, which directly realizes the integration and integration of various numerical control processing function modules as independent applications in a human-computer interaction interface (HMI), thereby realizing convenient integration of applications in the numerical control system, including :

A user interface development integration module for forming an application user interface in an HMI, which is implemented by defining a shape parameter of an application in a QML script, or defining a shape parameter in a dynamic library or calling a graphics library;

as well as

The numerical control function module is realized by writing a corresponding numerical control function module in the QML script or the dynamic library, and the numerical control function module is used for calling the numerical control system interface to acquire the running state data of the numerical control system for processing, thereby realizing the corresponding numerical control function. And feedback to the user through the user interface.
The development and integration system for an application in a numerical control system according to claim 7, wherein the user interface forming the application in the HMI is specifically: the HMI receives the message sent by the user through its message response function, and then opens the corresponding The user interface of the application forms a user interface in the HMI.
The method for developing and integrating an application in a numerical control system according to claim 7 or 8, wherein the numerical control function module is a module including a local application installation path, and the local application is used to implement a corresponding numerical control function, The numerical control function module opens the local application through the installation path to implement the corresponding numerical control function.
The development and integration system for an application in a numerical control system according to any one of claims 7 to 9, wherein the numerical control system is a numerical control system having a cloud server, and the numerical control function module is a cloud server address. The module, the cloud server is provided with an application for implementing a corresponding numerical control function, and the numerical control function module invokes an application on the cloud server through the address, thereby implementing a corresponding numerical control function.