CN111367840B - Method and device for realizing plug and play - Google Patents
Method and device for realizing plug and play Download PDFInfo
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- CN111367840B CN111367840B CN202010134934.XA CN202010134934A CN111367840B CN 111367840 B CN111367840 B CN 111367840B CN 202010134934 A CN202010134934 A CN 202010134934A CN 111367840 B CN111367840 B CN 111367840B
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- G06F13/14—Handling requests for interconnection or transfer
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Abstract
The invention provides a method and a device for realizing plug and play, wherein a configuration center sends a service capability description request to a newly added plug and play controller communicated with the configuration center to obtain an IP address, hardware information and software information of the controller returned by the controller; determining a first production line process information model corresponding to the IP address of the controller from a preset production line process information model library, wherein each production line process information model in the model library is provided with a corresponding IP address section; judging whether the controller simultaneously meets each requirement in a preset requirement group of the model, if so, obtaining configuration parameters and process codes corresponding to the model; changing the communication setting of the controller, thereby establishing communication between other equipment which is connected with the controller through a line and the controller, and configuring corresponding process configuration for the other equipment and the controller; and issuing the process codes to the controller so that the controller controls other equipment to execute corresponding production processes according to the process codes.
Description
Technical Field
The invention relates to the field of control engineering, in particular to a method and a device for realizing plug and play.
Background
As the industry continues to upgrade, many plants have a need to rebuild the production line. When the production line is transformed, the operation of the generally associated production line needs to be stopped, and the production line is restarted to continue production after the transformation is completed and the debugging is successful.
At present, when a production line is reformed, the associated production line is generally stopped firstly, all devices of a reformed target production line are connected, communication is configured, and then development codes and debugging operation are performed according to the target production line capable of communicating among all the devices.
Disclosure of Invention
In view of the above, the present invention provides a method and an apparatus for implementing plug and play, which can realize that when a production line stops running to add or replace a controller, the controller can control the production line to be put into production again in a short time, thereby greatly reducing the stop running time of the production line.
In order to achieve the above object, the present invention provides the following technical solutions:
in a first aspect, a method for implementing plug and play includes:
the configuration center sends a service capability description request to a newly added plug-and-play controller communicated with the configuration center, and obtains service capability description information returned by the newly added plug-and-play controller, wherein the service capability description information at least comprises: IP address, hardware information and software information of the newly added plug-and-play controller;
determining a first production line process information model corresponding to the IP address of the newly-added plug-and-play controller from a pre-established production line process information model base, wherein each production line process information model in the production line process information model base is provided with a corresponding IP address section;
judging whether the newly added plug-and-play controller simultaneously meets each requirement in a preset requirement group of the first production line process information model, if so, obtaining configuration parameters and process codes corresponding to the first production line process information model, wherein the preset requirement group comprises: minimum software requirements and minimum hardware requirements;
changing the communication setting of the newly-added plug-and-play controller and other devices according to the configuration parameters so as to establish communication between the other devices and the newly-added plug-and-play controller, wherein the other devices are other devices which are already connected with the newly-added plug-and-play controller through a circuit;
changing the process configuration of the newly added plug-and-play controller and the other equipment according to the configuration parameters so that the newly added plug-and-play controller can control the other equipment to execute corresponding production processes through the process codes;
and issuing the obtained process code to the newly-added plug-and-play controller so that the newly-added plug-and-play controller controls the other equipment to execute the corresponding production process according to the process code.
With reference to the first aspect, in some optional embodiments, before the configuration center sends the service capability description request to the newly added plug-and-play controller in communication with the configuration center, the method further includes:
the configuration center obtains a plug-and-play controller list of a discovery server through a discovery service period based on an object link and an embedded technology unified framework of process control, wherein the discovery server is a discovery server registered by the newly-added plug-and-play controller through the object link and the embedded technology unified framework of process control, and the plug-and-play controller list at least comprises identification information of the newly-added plug-and-play controller;
according to the identification information of the newly added plug-and-play controller, obtaining the safety communication configuration information of the newly added plug-and-play controller through the object link of process control and the terminal service in the embedded technology unified architecture, wherein the safety communication configuration information at least comprises: IP address and security setting information of the newly added plug-and-play controller;
and establishing the safe communication connection between the configuration center and the newly added plug-and-play controller according to the safe communication configuration information.
With reference to the previous embodiment, in some optional embodiments, after the establishing a secure communication connection between the configuration center and the newly added plug-and-play controller according to the secure communication configuration information, the method further includes:
and determining whether the newly added plug-and-play controller is a trusted device or not according to the digital certificate of the newly added plug-and-play controller and a trusted certificate in the configuration center, and if so, determining that the configuration center has the right to perform writing operation and reading operation on the newly added intelligent controller.
With reference to the first aspect, in some optional implementations, the sending, by the configuration center, a service capability description request to a newly added plug-and-play controller in communication with the configuration center, and obtaining service capability description information returned by the newly added plug-and-play controller includes:
the configuration center sends a service capability description request to a newly added plug-and-play controller communicated with the configuration center, so that the newly added plug-and-play controller sends service capability description information of the newly added plug-and-play controller to the configuration center through a preset device information model, wherein the preset device information model is matched with the newly added plug-and-play controller;
and the configuration center obtains the service capability description information returned by the newly added plug-and-play controller.
With reference to the first aspect, in some optional embodiments, the service capability description information further includes: a method for adding a plug-and-play controller;
the preset requirement group of the first production line process information model further comprises: the method requires.
With reference to the first aspect, in some optional embodiments, after the determining whether the newly added plug-and-play controller simultaneously meets each requirement in the preset requirement group of the first production line process information model, the method further includes:
if not, the configuration center disconnects with the newly added plug-and-play controller, and deletes the connection information of the newly added plug-and-play controller.
With reference to the first aspect, in some optional embodiments, the obtaining the configuration parameters and the process codes corresponding to the first production line process information model includes:
searching and obtaining a storage address of a process code of the newly added plug-and-play controller and configuration parameters of the newly added plug-and-play controller through the IP address of the newly added plug-and-play controller;
and obtaining the process codes from the corresponding memories according to the storage addresses of the process codes.
With reference to the first aspect, in some optional embodiments, the other device to which the newly added plug-and-play controller is line-connected includes:
and the other plug-and-play controllers connected with the newly added plug-and-play controller through the circuit and the execution equipment connected with the newly added plug-and-play controller through the circuit.
In a second aspect, an apparatus for implementing plug and play, comprising: the system comprises a service capability description obtaining unit, a process information model determining unit, a process requirement judging unit, a configuration parameter and process code obtaining unit, a communication configuration unit, a process configuration unit and a process code sending unit;
the service capability description obtaining unit is configured to send a service capability description request to a newly added plug-and-play controller in communication with the configuration center, and obtain service capability description information returned by the newly added plug-and-play controller, where the service capability description information at least includes: IP address, hardware information and software information of the newly added plug-and-play controller;
the process information model determining unit is used for determining a first production line process information model corresponding to the IP address of the newly-added plug-and-play controller from a pre-established production line process information model base, wherein each production line process information model in the production line process information model base is provided with a corresponding IP address section;
the process requirement judging unit is configured to judge whether the newly added plug-and-play controller simultaneously meets each requirement in a preset requirement group of the first production line process information model, and if yes, trigger the configuration parameter and process code obtaining unit, where the preset requirement group includes: minimum software requirements and minimum hardware requirements;
the configuration parameter and process code obtaining unit is used for obtaining configuration parameters and process codes corresponding to the first production line process information model;
the communication configuration unit is used for changing the communication setting of the newly-added plug-and-play controller and other equipment according to the configuration parameters so as to establish communication between the other equipment and the newly-added plug-and-play controller, wherein the other equipment is other equipment which is already connected with the newly-added plug-and-play controller through a line;
the process configuration unit is used for changing the process configuration of the newly-added plug-and-play controller and the other equipment according to the configuration parameters so that the newly-added plug-and-play controller can control the other equipment to execute corresponding production processes through the process codes;
and the process code sending unit is used for sending the obtained process code to the newly-added plug-and-play controller so as to enable the newly-added plug-and-play controller to control the other equipment to execute the corresponding production process according to the process code.
In combination with the second aspect, in certain alternative embodiments, the apparatus further comprises: the system comprises a registration discovery unit, a secure communication configuration information acquisition unit and a secure communication connection establishment unit;
the registration discovery unit is used for the configuration center to obtain a plug and play controller list of a discovery server through a discovery service period based on process control object link and embedded technology unified architecture, wherein the discovery server is the discovery server registered by the newly-added plug and play controller through the process control object link and the embedded technology unified architecture, and the plug and play control list at least comprises identification information of the newly-added plug and play controller;
the safety communication configuration information obtaining unit is configured to obtain, according to the identification information of the newly added plug-and-play controller, safety communication configuration information of the newly added plug-and-play controller through an object link of process control and a terminal service in an embedded technology unified architecture, where the safety communication configuration information at least includes: IP address and security setting information of the newly added plug-and-play controller;
and the safety communication connection establishing unit is used for establishing the safety communication connection between the configuration center and the newly-added plug-and-play controller according to the safety communication configuration information.
In summary, the present invention provides a method and an apparatus for implementing plug and play, where a configuration center sends a service capability description request to a newly added plug and play controller in communication with the configuration center, and obtains service capability description information returned by the newly added plug and play controller, where the service capability description information at least includes: IP address, hardware information and software information of the newly added plug-and-play controller; determining a first production line process information model corresponding to the IP address of the newly-added plug-and-play controller from a pre-established production line process information model base, wherein each production line process information model in the production line process information model base is provided with a corresponding IP address section; judging whether the newly added plug-and-play controller simultaneously meets each requirement in a preset requirement group of the first production line process information model, if so, obtaining configuration parameters and process codes corresponding to the first production line process information model, wherein the preset requirement group comprises: minimum software requirements and minimum hardware requirements; changing the communication setting of the newly-added plug-and-play controller and other devices according to the configuration parameters so as to establish communication between the other devices and the newly-added plug-and-play controller, wherein the other devices are other devices which are already connected with the newly-added plug-and-play controller through a circuit; changing the process configuration of the newly added plug-and-play controller and the other equipment according to the configuration parameters so that the newly added plug-and-play controller can control the other equipment to execute corresponding production processes through the process codes; and issuing the obtained process code to the newly-added plug-and-play controller so that the newly-added plug-and-play controller controls the other equipment to execute the corresponding production process according to the process code. The method provided by the invention can establish the process codes and the related configuration parameters in advance and store the process codes and the related configuration parameters in the configuration center, and when a newly-added plug-and-play controller is accessed into a production line, the configuration center can obtain the service capability description information of the newly-added plug-and-play controller. After obtaining the service capability description information of the newly added plug-and-play controller, the configuration center can obtain a first production line process information model matched with the newly added plug-and-play controller, and can judge whether the newly added plug-and-play controller can meet the production requirements of a target production line corresponding to the first production line process information model based on the requirement set of the first production line process information model and the service capability description information of the newly added plug-and-play controller. If yes, the newly-added plug-and-play controller can be used for the target production line, so that the configuration center can issue the process codes and the configuration parameters of the target production line to the newly-added plug-and-play controller. The newly added plug-and-play controller configures the communication between other equipment which is connected with the newly added plug-and-play controller through the circuit and the newly added plug-and-play controller based on the configuration parameters issued by the configuration center, and configures corresponding process configuration for the other equipment and the controller, so that the newly added plug-and-play controller can control the equipment to produce according to the process code. Therefore, the method provided by the invention does not need to manually configure parameters and develop a target production line to be issued and debugged in the process of stopping the production line, only needs to judge whether the newly-added plug-and-play controller meets the requirements of the production line, and if so, issues the configuration parameters and the process codes to the newly-added plug-and-play controller so as to facilitate the newly-added plug-and-play controller to automatically configure the parameters and operate the process codes, thereby realizing the modification of the production line. In conclusion, the method provided by the invention can complete the modification of the production line in a short time, greatly shorten the modification period of the production line, reduce the stop time of the production line and improve the production efficiency of a factory.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
FIG. 1 is a flow chart illustrating a method for plug and play implementation according to the present invention;
FIG. 2 is a flow chart illustrating another plug-and-play implementation method provided by the present invention;
fig. 3 shows a schematic structural diagram of a device for realizing plug and play provided by the invention.
Detailed Description
The invention discloses a method and a device for realizing plug and play, and a person skilled in the art can appropriately improve parameter realization by referring to the content of the text. It is expressly intended that all such similar substitutes and modifications which would be obvious to one skilled in the art are deemed to be included in the invention. While the methods and applications of this invention have been described in terms of preferred embodiments, it will be apparent to those of ordinary skill in the art that variations and modifications in the methods and applications described herein, as well as other suitable variations and combinations, may be made to implement and use the techniques of this invention without departing from the spirit and scope of the invention.
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
In the description of the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present embodiment, "a plurality" means two or more unless otherwise specified.
Adaptive factories are mainly characterized by reconfigurable flexible production lines and are the target of future development of discrete manufacturing factories. In the self-adaptive factory, a system integrator can integrate a new controller into a production line with little or no human input, so that the scale of the production line can be quickly enlarged or reduced, and the capacity can be flexibly controlled to meet the fluctuating market demand.
The inventor of the scheme discovers that the novel controller has the plug-and-play characteristic on the premise of achieving the aim, the plug-and-play characteristic is similar to that of a computer, the system automatically detects peripheral equipment and a board card and automatically installs an equipment driving program, and the system can be used by plugging without manual intervention.
Therefore, in the adaptive factory, a method can be designed, when a certain plug-and-play controller is connected into the network, the method can be automatically discovered by an industrial upper system in the network, including an industrial internet of things system, a manufacturing execution system, a data acquisition and monitoring control system and other systems, the attribute and the capability are identified, and the upper system and other devices in the network realize interoperation to cooperatively complete a production task. Based on the method, the machine equipment or the production line becomes more intelligent and can be found, identified and interoperated with other manufacturing units, so that the construction period of a factory can be greatly reduced, and the delivery cycle of products can be greatly improved.
Based on the above results of the present inventors, the present invention provides the following embodiments.
It should be understood that the Object linking and embedded technology Unified Architecture referred to herein is abbreviated as OPC UA, where OPC is an abbreviation of Object linking and embedding for process control, and UA is an abbreviation of Unified Architecture. For ease of description, the following description herein will use OPC UA, which is a next generation OPC standard, to obtain real-time and historical data and time by providing a complete, secure and reliable cross-platform architecture, instead of the object linking and embedded technology unified architecture for process control.
OPC UA provides a secure, reliable and vendor-independent transport technology based on a new generation of technology offered by the OPC foundation, enabling the transport of raw data and preprocessed information from the manufacturing level to the production planning or enterprise resource planning level. With OPC UA, all required information is available to every authorized person at any time, any place, for every authorized application. This functionality is independent of the manufacturer's original application, programming language and operating system. OPC UA is a complement to the OPC industry standard that is currently in use, providing important features such as platform independence, scalability, high reliability, and the ability to connect to the internet. OPC UA no longer relies on distributed component object schema, but rather is based on service-oriented architecture, making the use of OPC UA easier.
As shown in fig. 1, a method for implementing plug and play provided by the present invention includes:
s100, a configuration center sends a service capability description request to a newly added plug-and-play controller communicated with the configuration center, and obtains service capability description information returned by the newly added plug-and-play controller, wherein the service capability description information at least comprises: IP address, hardware information and software information of the newly added plug-and-play controller;
it should be appreciated that the configuration center may act as an OPC UA client, sending a service capability description request based on the new plug-and-play controller that OPC UA communicates to. The newly added plug-and-play controller is a plug-and-play controller which is connected to a target production line and can communicate with a configuration center.
It should be understood that the newly added plug-and-play controller may serve as an OPC UA server, and after receiving a service capability description request sent by the configuration center, the newly added plug-and-play controller may return service capability description information to the configuration center based on a pre-established OPC UA information model.
It should be understood that the OPC UA client and OPC UA server are commonly used in OPC UA technology, and are only used for describing that the OPC UA client and OPC UA server communicate in the client-server mode of OPC UA, and do not limit the scope of the present invention.
It should be understood that OPC UA information models, as referred to herein, are object-oriented techniques by which one type of physical device can be described as a digital model, each digital model corresponding to one type of physical device, one digital model being an object. By this way of description, different software can control the same object, i.e. the same type of physical device, in the same way. Objects serve as a basis for identifying data and control of a process system, and an object includes: variables, events and methods, which can be referenced to build connections between different objects.
For example: the basic characteristics of an electric machine include: state, speed, direction of rotation, method of starting, method of stopping, current and voltage and temperature of operation, etc. The OPC UA information model of the motor can be constructed by abstracting the interface and shielding operation details of the motor, wherein the variables of the OPC UA information model of the motor can comprise speed, rotation direction, working current, working voltage, working temperature and the like; the event of the OPC UA information model of the motor may include a state of the motor; the method of the OPC UA information model of the motor may include: start-up methods and stop methods, etc. That is, the OPC UA information model of the motor has all the characteristics of the actual physical motor, and when the information model needs to be called, only the parameters of the information model need to be called directly. For example, the rotating speed of the motor needs to be controlled, and only the speed parameter of the information model needs to be called; if the state of the motor needs to be checked, only the state parameters of the information model need to be called.
It should be understood that the service capability description information referred to herein is service capability description information of the new plug-and-play controller, which is established in advance and stored in the OPC UA information model of the new plug-and-play controller.
Optionally, the service capability description information may specifically include: adding the state, parameters, operation range and data structure of plug-and-play controller, and providing OPC UA information model information, wherein the parameters include: I/O type and number, process logic execution capabilities, etc., to describe its functional scope and service capabilities to the configuration center, which the present invention does not limit.
S200, determining a first production line process information model corresponding to the IP address of the newly-added plug-and-play controller from a pre-established production line process information model base, wherein each production line process information model in the production line process information model base is provided with a corresponding IP address section;
it should be understood that the production line process information model library described herein may include a plurality of production line process information models, each production line process information model being created by an engineer according to a planned target production line and passing through simulation verification, that is, each production line process information model corresponds to a target production line after each planned production line is modified. The modification may be to add or delete some execution devices on the basis of the original production line, or to add a brand new production line or delete a production line, which is not limited by the present invention.
Optionally, in the planning stage, the IP address field of each production line may be planned and allocated in advance, and the corresponding IP address field may be set for the production line process information model of the corresponding production line, so that the production line process information model corresponding to the IP address field including the IP address of the newly added plug-and-play controller may be quickly searched in the following according to the IP address of the newly added plug-and-play controller.
S300, judging whether the newly added plug-and-play controller simultaneously meets all requirements in a preset requirement group of the first production line process information model, if so, executing S400, wherein the preset requirement group comprises: minimum software requirements and minimum hardware requirements;
it should be understood that each production line process information model includes some requirements of the corresponding target production line for the controller, which can be broadly divided into software requirements and hardware requirements. Such as the requirement for the number of I/O ports of the controller, the requirement for the computation speed, the requirement for the software system, etc., which the present invention does not limit.
Optionally, the requirements included in each production line process information model are obtained by performing simulation operation on the target production line corresponding to each production line process information model, and the requirements are obtained through a simulation experiment, so that the requirements have high instructive performance. In practice, as long as the newly added plug-and-play controller meets all requirements of a process information model of a certain production line, the newly added plug-and-play controller is suitable for the production line.
Through the mode, whether the newly-added plug-and-play controller meets the requirements of the production line where the newly-added plug-and-play controller is located can be quickly judged, development, debugging and verification are not needed to be carried out through connecting the actual production line by engineering personnel, the method is convenient and quick, and the period of modifying the production line can be greatly shortened.
S400, obtaining configuration parameters and process codes corresponding to the first production line process information model;
s500, changing the communication setting of the newly-added plug-and-play controller and other devices according to the configuration parameters, so as to establish communication between the other devices and the newly-added plug-and-play controller, wherein the other devices are other devices which are already connected with the newly-added plug-and-play controller through a line;
it should be appreciated that the newly added plug-and-play controller may have established a communication connection with its host computer, i.e., the configuration center, and other devices to which it is wired may not have established a communication connection with it before this step is performed. Line connection means that other devices may be connected with the newly added plug-and-play controller from the aspect of hardware. For example, through a bus connection, but to realize communication, some software configuration is also needed, that is, the communication setting of the new plug-and-play controller is changed according to the configuration parameters in this step. After the step is completed, the newly added plug-and-play controller establishes communication connection with other devices, which is not limited in the present invention.
It should be understood that after the step S300 determines that the newly added plug-and-play controller satisfies all the requirements of the preset requirement set, the unnecessary work can be reduced and the time can be saved when the step S500 is executed. That is, only the newly added plug-and-play controller that meets all the requirements of the target production line will necessarily configure its communication with the other devices in the target production line.
S600, changing the process configuration of the newly-added plug-and-play controller and the other equipment according to the configuration parameters so that the newly-added plug-and-play controller can control the other equipment to execute corresponding production processes through the process codes;
it should be appreciated that as different process codes may perform different manufacturing processes, process configurations for the newly added plug-and-play controller and the other devices may be required. For example, the configuration parameters mentioned herein may include process parameters, and the new plug-and-play controller and the other devices may be configured in a process according to the process parameters, so that the new plug-and-play controller and the other devices meet the process requirements of the corresponding production process. For example, if the motor is intended to rotate forward, the motor needs to be configured in the forward rotation process before the code for controlling the forward rotation of the motor is obtained to control the forward rotation of the motor, so that the motor can control the forward rotation by the code after the code for executing the forward rotation is obtained. Although the present invention is described with respect to a motor process configuration, any other embodiment for configuring a device according to a process parameter of the configuration parameters is within the scope of the present invention, since the process configuration is too extensive, and different equipment and process requirements may require different process configurations.
S700, issuing the obtained process code to the newly-added plug-and-play controller so that the newly-added plug-and-play controller controls the other equipment to execute the corresponding production process according to the process code.
It should be understood that the process code is a process code which is developed in advance by an engineer according to the modified target production line and is simulated to run through, that is, the code is confirmed to be available for the target production line through a simulation experiment, and the completion of the production task of the target production line can be controlled.
Because the process code is established in advance, the process code only needs to be issued to a newly-added plug-and-play controller meeting the requirements and started to operate in the process of modifying the production line. The code does not need to be developed in the transformation process, and is downloaded to the controller manually and then debugged. The method provided by the invention can complete the development code and debugging operation stage which are most time-consuming in the process of modifying the production line through simulation before modification, and can store the reliable process code obtained through simulation and the like on one side of the configuration center. The method can greatly shorten the period of modifying the production line, avoid overlong production line stop time and improve the production efficiency of a factory to the maximum extent.
Optionally, when the newly added plug-and-play controller is used as a bottom controller of a certain target production line, the process code referred to herein is a process code corresponding to the target production line, and the newly added plug-and-play controller operates the process code to control the corresponding target production line to produce; when the newly added plug-and-play controller is used as a controller of the scheduling layer, after the newly added plug-and-play controller obtains the process code, the process code may need to be sent to the bottom layer controller connected with the newly added plug-and-play controller, so that the bottom layer controller can control the corresponding target production line to produce according to the process code; if the newly added plug-and-play controller is connected with a plurality of bottom controllers, and one bottom controller controls one sub-production line, the newly added plug-and-play controller can obtain a plurality of process codes and distribute each process code to the corresponding bottom controller, which is not limited by the invention.
As shown in fig. 2, in combination with the embodiment shown in fig. 1, in some alternative embodiments, another method for implementing plug and play provided by the present invention includes:
s70, the configuration center obtains a plug and play controller list of a discovery server through a discovery service period based on the process control object link and the embedded technology unified architecture, wherein the discovery server is a discovery server registered by the newly added plug and play controller through the process control object link and the embedded technology unified architecture, and the plug and play controller list at least comprises identification information of the newly added plug and play controller;
it should be understood that the discovery service and the terminal service mentioned herein are both services that the OPC UA can provide, and through the discovery service, a list of plug-and-play controllers of all discovery servers in the network where the configuration center is located can be obtained, and these lists record which plug-and-play controllers that have been registered are included in the current network.
Optionally, after completing network configuration (e.g., network cable connection, IP configuration, routing table, etc.) of the newly added plug-and-play controller, a debugging engineer may start a registration service in the newly added plug-and-play controller, where the service uses the OPC UA registration server to send the registration service to the discovery server, so as to find a configuration center of the software and the platform layer.
S80, according to the identification information of the newly added plug and play controller, obtaining the safety communication configuration information of the newly added plug and play controller through the object link of process control and the terminal service in the embedded technology unified architecture, wherein the safety communication configuration information at least comprises: IP address and security setting information of the newly added plug-and-play controller;
it should be understood that when the plug-and-play controller list is obtained in step S70, a terminal service is triggered, and the terminal service can obtain all information necessary for establishing a secure channel and a communication connection between the configuration center and the newly added plug-and-play controller. Such as: the IP address of the plug-and-play controller, the IP address of the server of the configuration center, security settings, digital certificates, defined algorithms and security policies, and the type of user authentication used to create the communication connection, etc., which the present invention does not limit.
S90, establishing the safety communication connection between the configuration center and the newly added plug-and-play controller according to the safety communication configuration information.
Optionally, establishing a secure communication connection may ensure the security of the target production line, which is not limited in the present invention.
S100, a configuration center sends a service capability description request to a newly added plug-and-play controller communicated with the configuration center, and obtains service capability description information returned by the newly added plug-and-play controller, wherein the service capability description information at least comprises: IP address, hardware information and software information of the newly added plug-and-play controller;
s200, determining a first production line process information model corresponding to the IP address of the newly-added plug-and-play controller from a pre-established production line process information model base, wherein each production line process information model in the production line process information model base is provided with a corresponding IP address section;
s300, judging whether the newly added plug-and-play controller simultaneously meets all requirements in a preset requirement group of the first production line process information model, if so, executing S400, wherein the preset requirement group comprises: minimum software requirements and minimum hardware requirements;
s400, obtaining configuration parameters and process codes corresponding to the first production line process information model;
s500, changing the communication setting of the newly-added plug-and-play controller and other devices according to the configuration parameters, so as to establish communication between the other devices and the newly-added plug-and-play controller, wherein the other devices are other devices which are already connected with the newly-added plug-and-play controller through a line;
s600, changing the process configuration of the newly-added plug-and-play controller and the other equipment according to the configuration parameters so that the newly-added plug-and-play controller can control the other equipment to execute corresponding production processes through the process codes;
s700, issuing the obtained process code to the newly-added plug-and-play controller so that the newly-added plug-and-play controller controls the other equipment to execute the corresponding production process according to the process code.
Step S100, step S200, step S300, step S400, step S500, step 600 and step S700 in fig. 2 are all described in the embodiment of fig. 1, and the description of this embodiment is omitted.
With reference to the embodiment shown in fig. 2, in some optional embodiments, after the establishing a secure communication connection between the configuration center and the newly added plug-and-play controller according to the secure communication configuration information, the method further includes:
and determining whether the newly added plug-and-play controller is a trusted device or not according to the digital certificate of the newly added plug-and-play controller and a trusted certificate in the configuration center, and if so, determining that the configuration center has the right to perform writing operation and reading operation on the newly added intelligent controller.
It should be appreciated that the newly added plug-and-play controller can be determined to be a trusted device before the configuration center is allowed to perform write operations and read operations to the newly added intelligent controller. This way, the newly added plug-and-play controller can be ensured to be the controller actually needed by the production line, thereby ensuring the safety of the production line.
Optionally, the method for determining that the newly added plug-and-play controller is a trusted device may be divided into: the configuration center determines that the digital certificate really belongs to the newly-added plug-and-play controller according to the public key of the digital certificate and the trusted certificate in the configuration center, and detects that the digital certificate is really legal by a third party, which is not limited by the invention.
It should be understood that the trusted certificate in the configuration center may be that at the design delivery stage of the production line, the service expert decides that the digital certificate of a newly added plug-and-play controller can be trusted and stores it in the trusted certificate library of the configuration center that stores all trusted certificates. Thus, the configuration center can establish a corresponding connection with a particular add-on plug-and-play controller, which is trusted and not limiting to the present invention.
With reference to the embodiment shown in fig. 1, in some optional embodiments, the sending, by the configuration center, a service capability description request to a newly added plug-and-play controller in communication with the configuration center, and obtaining service capability description information returned by the newly added plug-and-play controller includes:
the configuration center sends a service capability description request to a newly added plug-and-play controller communicated with the configuration center, so that the newly added plug-and-play controller sends service capability description information of the newly added plug-and-play controller to the configuration center through a preset device information model, wherein the preset device information model is matched with the newly added plug-and-play controller;
and the configuration center obtains the service capability description information returned by the newly added plug-and-play controller.
It should be understood that the device information model referred to herein is a specific implementation of the aforementioned OPC UA information model. Namely, the preset device information model is an OPC UA information model of the newly added plug-and-play controller constructed by an OPC UA information model construction technology.
It should be understood that, a corresponding OPC UA information model is established for the newly added plug-and-play controller in advance, so that after the newly added plug-and-play controller is connected to the target production line, the newly added plug-and-play controller can accurately describe the functional range and the service capability of the newly added plug-and-play controller to the configuration center, and the efficiency of the configuration center in identifying the newly added plug-and-play controller is improved.
In some optional embodiments, in combination with the embodiment shown in fig. 1, the service capability description information further includes: a method for adding a plug-and-play controller;
the preset requirement group of the first production line process information model further comprises: the method requires.
It should be understood that in addition to determining whether the newly added plug-and-play controller satisfies the software requirements and the hardware requirements of the predetermined set of requirements, it may also be determined whether the method requirements of the predetermined set of requirements are satisfied. For example, it can be determined whether the starting method of the newly added plug-and-play controller meets the starting method requirement in the preset requirement group, where the requirement in the preset requirement group is the actual requirement of the target production line.
It should be understood that, when the newly added plug-and-play controller is judged to meet the method requirements in the preset requirement group, the newly added plug-and-play controller can be further ensured to be really suitable for the target production line, so that the production line can be further ensured to be transformed into the expected target production line, and the safety of the target production line is ensured.
With reference to the embodiment shown in fig. 1, in some optional embodiments, after the determining whether the newly added plug-and-play controller simultaneously meets each requirement in the preset requirement group of the first production line process information model, the method further includes:
if not, the configuration center disconnects with the newly added plug-and-play controller, and deletes the connection information of the newly added plug-and-play controller.
It should be understood that if it is determined that the newly added plug-and-play controller does not meet the requirements in the preset requirement group of the first production line process information model at the same time, it indicates that the newly added plug-and-play controller is not applicable to the corresponding target production line, so the configuration center may disconnect the newly added plug-and-play controller and delete the corresponding connection information, which is not limited by the present invention.
Optionally, in addition to performing the deletion process on the new plug-and-play controller, other processes may also be performed, for example, shielding the new plug-and-play controller, which is not limited in this disclosure.
With reference to the embodiment shown in fig. 1, in some optional embodiments, the obtaining the configuration parameters and the process codes corresponding to the first production line process information model includes:
searching and obtaining a storage address of a process code of the newly added plug-and-play controller and configuration parameters of the newly added plug-and-play controller through the IP address of the newly added plug-and-play controller;
and obtaining the process codes from the corresponding memories according to the storage addresses of the process codes.
Optionally, the configuration parameters and the process codes in this embodiment are established in advance and verified through simulation experiments.
Optionally, some communication settings of the newly added plug-and-play controller may be changed according to the configuration parameters, so that the newly added plug-and-play controller may be in communication connection with other plug-and-play controllers, so as to complete cooperative work between different production lines; the newly-added plug-and-play controller can be enabled to communicate with the executing device connected with the circuit thereof, so as to control the corresponding target production line to execute the production task.
In some alternative embodiments, in combination with the embodiment shown in fig. 1, the other device to which the newly added plug-and-play controller is connected includes:
and the other plug-and-play controllers connected with the newly added plug-and-play controller through the circuit and the execution equipment connected with the newly added plug-and-play controller through the circuit.
As shown in fig. 3, the device for implementing plug and play provided by the present invention includes: the system comprises a service capability description obtaining unit 100, a process information model determining unit 200, a process requirement judging unit 300, a configuration parameter and process code obtaining unit 400, a communication configuration unit 500, a process configuration unit 600 and a process code sending unit 700;
the service capability description obtaining unit 100 is configured to send a service capability description request to a newly added plug-and-play controller in communication with the configuration center, and obtain service capability description information returned by the newly added plug-and-play controller, where the service capability description information at least includes: IP address, hardware information and software information of the newly added plug-and-play controller;
the process information model determining unit 200 is configured to determine, from a pre-established production line process information model library, a first production line process information model corresponding to the IP address of the newly added plug-and-play controller, where each production line process information model in the production line process information model library is provided with a corresponding IP address segment;
the process requirement determining unit 300 is configured to determine whether the newly added plug-and-play controller simultaneously meets each requirement in a preset requirement group of the first production line process information model, and if yes, trigger the configuration parameter and process code obtaining unit 400, where the preset requirement group includes: minimum software requirements and minimum hardware requirements;
the configuration parameter and process code obtaining unit 400 is configured to obtain a configuration parameter and a process code corresponding to the first production line process information model;
the communication configuration unit 500 is configured to change the communication setting between the newly added plug-and-play controller and another device according to the configuration parameter, so as to establish communication between the other device and the newly added plug-and-play controller, where the other device is another device that is already connected to the newly added plug-and-play controller through a line;
the process configuration unit 600 is configured to change the process configurations of the newly added plug-and-play controller and the other devices according to the configuration parameters, so that the newly added plug-and-play controller can control the other devices to execute corresponding production processes through the process codes;
the process code sending unit 700 is configured to send the obtained process code to the newly added plug-and-play controller, so that the newly added plug-and-play controller controls the other devices to execute corresponding production processes according to the process code.
In some alternative embodiments, in combination with the embodiment shown in fig. 2, the apparatus further comprises: the system comprises a registration discovery unit, a secure communication configuration information acquisition unit and a secure communication connection establishment unit;
the registration discovery unit is used for the configuration center to obtain a plug and play controller list of a discovery server through a discovery service period based on process control object link and embedded technology unified architecture, wherein the discovery server is the discovery server registered by the newly-added plug and play controller through the process control object link and the embedded technology unified architecture, and the plug and play control list at least comprises identification information of the newly-added plug and play controller;
the safety communication configuration information obtaining unit is configured to obtain, according to the identification information of the newly added plug-and-play controller, safety communication configuration information of the newly added plug-and-play controller through an object link of process control and a terminal service in an embedded technology unified architecture, where the safety communication configuration information at least includes: IP address and security setting information of the newly added plug-and-play controller;
and the safety communication connection establishing unit is used for establishing the safety communication connection between the configuration center and the newly-added plug-and-play controller according to the safety communication configuration information.
In combination with the second apparatus embodiment, in certain alternative embodiments, the apparatus further comprises: a digital certificate judgment unit and a permission determination unit;
the digital certificate judging unit determines whether the newly added plug-and-play controller is a trusted device or not according to the digital certificate of the newly added plug-and-play controller and a trusted certificate in the configuration center, and if so, triggers the authority determining unit;
and the permission determining unit is used for determining that the configuration center has the right to perform writing operation and reading operation on the newly-added intelligent controller.
In some optional embodiments, in combination with the embodiment of fig. 3, the service capability description obtaining unit 100 includes: a service capability description request sending unit and a service capability description obtaining subunit;
the service capability description request sending unit is used for sending a service capability description request to a newly added plug-and-play controller communicated with the configuration center by the configuration center, so that the newly added plug-and-play controller sends service capability description information of the newly added plug-and-play controller to the configuration center through a preset device information model, wherein the preset device information model is matched with the newly added plug-and-play controller;
and the service capability description obtaining subunit is configured to obtain, by the configuration center, service capability description information returned by the newly added plug-and-play controller.
In some optional embodiments, in combination with the embodiment of fig. 3, the apparatus further includes: a deletion unit;
the deleting unit is configured to, when the process requirement determining unit 300 determines that the new plug-and-play controller does not simultaneously meet each requirement in the preset requirement group of the first production line process information model, disconnect the configuration center from the new plug-and-play controller, and delete connection information of the new plug-and-play controller.
With reference to the first aspect, in some optional embodiments, the configuration parameter and process code obtaining unit 400 includes: a search unit and a process code obtaining unit;
the searching unit is used for searching and obtaining a storage address of a process code of the newly added plug-and-play controller and configuration parameters of the newly added plug-and-play controller through the IP address of the newly added plug-and-play controller;
the process code obtaining unit is used for obtaining the process codes from the corresponding memories according to the storage addresses of the process codes.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, as for the apparatus embodiment, since it is substantially similar to the method embodiment, the description is relatively simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. A method for plug and play implementation, comprising:
the configuration center sends a service capability description request to a newly added plug-and-play controller communicated with the configuration center, and obtains service capability description information returned by the newly added plug-and-play controller, wherein the service capability description information at least comprises: IP address, hardware information and software information of the newly added plug-and-play controller;
determining a first production line process information model corresponding to the IP address of the newly-added plug-and-play controller from a pre-established production line process information model base, wherein each production line process information model in the production line process information model base is provided with a corresponding IP address section;
judging whether the newly added plug-and-play controller simultaneously meets each requirement in a preset requirement group of the first production line process information model, if so, obtaining configuration parameters and process codes corresponding to the first production line process information model, wherein the preset requirement group comprises: minimum software requirements and minimum hardware requirements;
changing the communication setting of the newly-added plug-and-play controller and other devices according to the configuration parameters so as to establish communication between the other devices and the newly-added plug-and-play controller, wherein the other devices are other devices which are already connected with the newly-added plug-and-play controller through a circuit;
changing the process configuration of the newly added plug-and-play controller and the other equipment according to the configuration parameters so that the newly added plug-and-play controller can control the other equipment to execute corresponding production processes through the process codes;
and issuing the obtained process code to the newly-added plug-and-play controller so that the newly-added plug-and-play controller controls the other equipment to execute the corresponding production process according to the process code.
2. The method of claim 1, wherein prior to the configuration center sending a service capability description request to a newly added plug and play controller in communication therewith, the method further comprises:
the configuration center obtains a plug-and-play controller list of a discovery server through a discovery service period based on an object link and an embedded technology unified framework of process control, wherein the discovery server is a discovery server registered by the newly-added plug-and-play controller through the object link and the embedded technology unified framework of process control, and the plug-and-play controller list at least comprises identification information of the newly-added plug-and-play controller;
according to the identification information of the newly added plug-and-play controller, obtaining the safety communication configuration information of the newly added plug-and-play controller through the object link of process control and the terminal service in the embedded technology unified architecture, wherein the safety communication configuration information at least comprises: IP address and security setting information of the newly added plug-and-play controller;
and establishing the safe communication connection between the configuration center and the newly added plug-and-play controller according to the safe communication configuration information.
3. The method of claim 2, wherein after establishing the secure communication connection between the configuration center and the new plug-and-play controller according to the secure communication configuration information, the method further comprises:
and determining whether the newly added plug-and-play controller is a trusted device or not according to the digital certificate of the newly added plug-and-play controller and a trusted certificate in the configuration center, and if so, determining that the configuration center has the right to perform writing operation and reading operation on the newly added plug-and-play controller.
4. The method of claim 1, wherein the step of the configuration center sending a service capability description request to the newly added plug-and-play controller in communication with the configuration center to obtain the service capability description information returned by the newly added plug-and-play controller comprises:
the configuration center sends a service capability description request to a newly added plug-and-play controller communicated with the configuration center, so that the newly added plug-and-play controller sends service capability description information of the newly added plug-and-play controller to the configuration center through a preset device information model, wherein the preset device information model is matched with the newly added plug-and-play controller;
and the configuration center obtains the service capability description information returned by the newly added plug-and-play controller.
5. The method of claim 1, wherein the service capability description information further comprises: a method for adding a plug-and-play controller;
the preset requirement group of the first production line process information model further comprises: the method requires.
6. The method as claimed in claim 1, wherein after said determining whether said newly added plug-and-play controller simultaneously satisfies each requirement in said preset set of requirements of said first production line process information model, said method further comprises:
if not, the configuration center disconnects with the newly added plug-and-play controller, and deletes the connection information of the newly added plug-and-play controller.
7. The method of claim 1, wherein the obtaining configuration parameters and process codes corresponding to the first production line process information model comprises:
searching and obtaining a storage address of a process code of the newly added plug-and-play controller and configuration parameters of the newly added plug-and-play controller through the IP address of the newly added plug-and-play controller;
and obtaining the process codes from the corresponding memories according to the storage addresses of the process codes.
8. The method of claim 1, wherein the other devices to which the add-on plug-and-play controller is line connected comprise:
and the other plug-and-play controllers connected with the newly added plug-and-play controller through the circuit and the execution equipment connected with the newly added plug-and-play controller through the circuit.
9. An apparatus for enabling plug and play, comprising: the system comprises a service capability description obtaining unit, a process information model determining unit, a process requirement judging unit, a configuration parameter and process code obtaining unit, a communication configuration unit, a process configuration unit and a process code sending unit;
the service capability description obtaining unit is configured to send a service capability description request to a newly added plug-and-play controller in communication with the configuration center, and obtain service capability description information returned by the newly added plug-and-play controller, where the service capability description information at least includes: IP address, hardware information and software information of the newly added plug-and-play controller;
the process information model determining unit is used for determining a first production line process information model corresponding to the IP address of the newly-added plug-and-play controller from a pre-established production line process information model base, wherein each production line process information model in the production line process information model base is provided with a corresponding IP address section;
the process requirement judging unit is configured to judge whether the newly added plug-and-play controller simultaneously meets each requirement in a preset requirement group of the first production line process information model, and if yes, trigger the configuration parameter and process code obtaining unit, where the preset requirement group includes: minimum software requirements and minimum hardware requirements;
the configuration parameter and process code obtaining unit is used for obtaining configuration parameters and process codes corresponding to the first production line process information model;
the communication configuration unit is used for changing the communication setting of the newly-added plug-and-play controller and other equipment according to the configuration parameters so as to establish communication between the other equipment and the newly-added plug-and-play controller, wherein the other equipment is other equipment which is already connected with the newly-added plug-and-play controller through a line;
the process configuration unit is used for changing the process configuration of the newly-added plug-and-play controller and the other equipment according to the configuration parameters so that the newly-added plug-and-play controller can control the other equipment to execute corresponding production processes through the process codes;
and the process code sending unit is used for sending the obtained process code to the newly-added plug-and-play controller so as to enable the newly-added plug-and-play controller to control the other equipment to execute the corresponding production process according to the process code.
10. The apparatus of claim 9, further comprising: the system comprises a registration discovery unit, a secure communication configuration information acquisition unit and a secure communication connection establishment unit;
the registration discovery unit is used for the configuration center to obtain a plug and play controller list of a discovery server through a discovery service period based on process control object link and embedded technology unified architecture, wherein the discovery server is the discovery server registered by the newly-added plug and play controller through the process control object link and the embedded technology unified architecture, and the plug and play control list at least comprises identification information of the newly-added plug and play controller;
the safety communication configuration information obtaining unit is configured to obtain, according to the identification information of the newly added plug-and-play controller, safety communication configuration information of the newly added plug-and-play controller through an object link of process control and a terminal service in an embedded technology unified architecture, where the safety communication configuration information at least includes: IP address and security setting information of the newly added plug-and-play controller;
and the safety communication connection establishing unit is used for establishing the safety communication connection between the configuration center and the newly-added plug-and-play controller according to the safety communication configuration information.
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Address after: 5-7, No.38, building 7, East District, Ningbo new material innovation center, Ningbo hi tech Zone, 315000, Zhejiang Province Patentee after: Hollysys Kauber Technology Co.,Ltd. Patentee after: BEIJING HOLLYSYS AUTOMATION & DRIVE Co.,Ltd. Address before: 5-7, No.38, building 7, East District, Ningbo new material innovation center, Ningbo hi tech Zone, 315000, Zhejiang Province Patentee before: NINGBO HELISHI INTELLIGENT TECHNOLOGY Co.,Ltd. Patentee before: BEIJING HOLLYSYS AUTOMATION & DRIVE Co.,Ltd. |
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