CN117240835A - Avionics testing equipment management and control system based on OPC UA protocol gateway - Google Patents
Avionics testing equipment management and control system based on OPC UA protocol gateway Download PDFInfo
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Abstract
The invention discloses an intelligent modularized avionics test equipment management and control system based on an OPC UA protocol gateway, wherein a module access assembly generates an instance of each module of test equipment in the equipment gateway and forms a standard operation interface in a unified form; providing, by the Web service component, a visual modeling tool, a link configuration tool, and a test equipment management tool; the gateway OPC UA Server component reads the information model generated by the visual modeling tool, opens up an address space in the memory address and establishes a mapping node of the information model, and further maps the standard operation interface and data provided by the module access component to the node corresponding to the address space through the OPC UA Server configuration tool to respond to the acquisition or control request. The invention makes full use of OPC UA information model to intensively obtain the state information of each module, thereby realizing the integrated health monitoring and management of the test equipment.
Description
Technical Field
The invention belongs to the field of avionics product testing, and relates to an avionics testing equipment management and control system based on an OPC UA protocol gateway.
Background
The avionics testing equipment is specialized industrial equipment for scientific research, production, maintenance, test and diagnosis of avionics products. In recent years, in order to adapt to the continuous growth of the types and delivery amounts of avionics products, the architecture of avionics equipment gradually develops to the direction of generalization and flexibility, so that the rapid construction of the equipment is realized through universal framework, resource and flexibility adaptation, and the expansion capability of the equipment is improved. The modular design is the best mode of the universal and flexible concept landing, and through the modular design, the equipment can select hardware resources capable of meeting testing conditions according to specific testing requirements under a unified framework, so that the design, development and upgrading iteration of the equipment are more convenient and flexible.
In general, the modularized avionics testing equipment mainly comprises a main control module, a simulation excitation and monitoring module, a universal interface module and a power supply module, and as shown in fig. 1, the modules can be selected and combined based on product configuration so as to meet testing requirements of different products. The main control module provides a management computer, runs test software and provides a display for displaying a test function interaction interface; the simulation excitation and monitoring module provides at least one industrial personal computer, can be used for plugging various signal simulation excitation and monitoring board card resources based on the use requirement, simultaneously operates the testing middleware, receives the testing instruction of the main control module, and completes data receiving and transmitting operation; the universal interface module gathers the test interface resources of the simulation excitation and monitoring module through the interface gathering component and connects the tested product through the interface adapter, so as to realize the universal access and test of the product; the power supply module is mainly used for providing power supply for the tested product. The modularization of the test equipment improves the efficiency of equipment development and reduces the difficulty of equipment operation and maintenance, however, because of a distributed deployment mode, the running state of the test equipment is difficult to establish centralized effective acquisition and monitoring measures, and the difficulty is brought to the guarantee of the stability and the reliability of the test equipment. For example, a tester cannot directly obtain the load of the simulation excitation and monitoring module and the state information of each functional board card through the main control computer at present, so that the state of equipment cannot be accurately judged before the test activity starts, and the scientific research production activity is affected. Meanwhile, most of the main functional modules of the mature avionics testing equipment in the aviation industry are outsourcing commercial goods shelf products, and due to the fact that brands are more and industry interface standards are lacking, the modules of the same type cannot provide a unified form of management and control interface. Other non-shelf standard modules do not even provide a management interface, and such modules typically do not have remote management capabilities. Therefore, most of the avionics test equipment applied in the aviation industry at present lacks more or less self-health management capability, and a standardized interface is formed towards the core components of the avionics test equipment, so that an integrated management mode of the modularized test equipment is advanced.
In addition, a plurality of avionics test devices still adopt an offline working mode at present, and the state of the test devices and the test result data cannot be transmitted to an information system through a network. In order to improve the quality control capability of avionics products, integration of test equipment in an avionics automation production line is of great importance, so that the avionics test equipment is required to be connected into other management and control information platforms such as MES (manufacturing execution system) and the like through industrial interconnection protocols conforming to the industrial 4.0 standard, such as OPC UA (optical control and UA) protocol and the like, and a data acquisition interface meeting the production line management requirement is provided.
Disclosure of Invention
The invention aims to provide an intelligent modularized avionics test equipment management and control system based on an OPC UA protocol gateway, which can quickly integrate modules with different interface types in test equipment into a unified management framework in an adaptive manner to realize the integrated state monitoring and management of the test equipment, and meanwhile, the collected component interfaces are re-integrated and opened to other equipment or informatization systems through the OPC UA interface of industry standard to realize the networking and informatization of the test system.
The invention aims at realizing the following technical scheme:
an intelligent modularized avionics test equipment management and control system based on an OPC UA protocol gateway comprises an equipment gateway, wherein the equipment gateway comprises a module access component, a Web service component and a gateway OPC UA Server component;
the module access assembly is responsible for accessing and adapting each module of the test equipment, generating an instance of each module of the test equipment in the equipment gateway, and forming a standard operation interface in a unified form;
the Web service component provides a visual modeling tool, can digitally express basic information and components of the test equipment and forms various information models; providing a link configuration tool, which can bind an operation interface provided by the module access component to an address space opened by the gateway OPC UA Server component to open a complete data acquisition and control link; providing a test equipment management tool, embedding OPC UA clients, and being capable of connecting with a gateway OPC UA Server component to realize state check and remote self-checking and switch control of each module of the test equipment;
the gateway OPC UA Server component can read the information model generated by the visual modeling tool, open up an address space in a memory address and establish a mapping node of the information model, and further map a standard operation interface and data provided by the module access component onto a node corresponding to the address space through the OPC UA Server configuration tool to respond to the acquisition or control request; meanwhile, the gateway OPC UA Server component can collect state data of each module of the test equipment through frequency defined by the information model, update data in an address space and provide a relational database for storing and inquiring historical data of the state information.
Preferably, the intelligent modularized navigation electric testing equipment management and control system based on the OPC UA protocol gateway also comprises an OPC UA Server and a Web browser which reside in the main control module;
the OPC UA Server residing in the master control module is responsible for collecting the operation parameters of the master control module and providing the operation parameters of the master control module to the equipment gateway through the Ethernet based on the standard information model of the master control module;
the Web browser residing in the main control module can access the Web service component of the equipment gateway, information model modeling of each module of the test equipment is carried out through the visual modeling tool, and test equipment management work is carried out through the test equipment management tool;
the module access component is connected with an OPC UA Server of the main control module through an Ethernet interface, and based on OPC UA protocol specifications, an OPC UA Client is built in to map an example of the main control module, so that an OPC UA object and a standard operation interface are formed.
Preferably, the intelligent modularized navigation electric testing equipment management and control system based on the OPC UA protocol gateway further comprises an OPC UA Server residing in the simulation excitation and acquisition module;
the OPC UA Server residing in the simulation excitation and collection module is responsible for collecting the operation parameters of the simulation excitation and collection module, and providing the operation parameters of the simulation excitation and collection module to the equipment gateway through the Ethernet based on the standard information model of the simulation excitation and collection module;
the module access assembly is connected with an OPC UAServer of the simulation excitation and collection module through an Ethernet interface, and based on OPC UA protocol specifications, an OPC UA Client mapping simulation excitation and collection module example is built in to form an OPC UA object and a standard operation interface.
Preferably, the intelligent modularized avionics test equipment management and control system based on the OPC UA protocol gateway further comprises a temperature monitoring module;
the temperature monitoring module comprises a sensor and an interconnection component, wherein the sensor acquires temperature information of a key module in the test equipment, converts the temperature information into digital quantity to form a temperature monitoring module information model, and is connected to the equipment gateway through a Modbus interface by a Modbus Server built in the interconnection component;
the module access assembly is connected with a Modbus Master of the temperature monitoring module through the Ethernet, and based on a Modbus protocol specification, a Modbus Slave mapping temperature monitoring module example is built in to form a Modbus object and a standard operation interface.
Preferably, the intelligent modularized navigation electric testing equipment management and control system based on the OPC UA protocol gateway further comprises an alarm module;
the module access assembly is connected with a Modbus Master of the alarm module through an Ethernet, and based on a Modbus protocol specification, a Modbus Slave mapping alarm module instance is built in to form a Modbus object and a standard operation interface;
defining a temperature alarm threshold in the information model of the temperature monitoring module, and controlling the alarm module to generate an acousto-optic alarm when the test equipment management tool of the Web service component monitors that the temperature exceeds the alarm threshold and other abnormal conditions;
the alarm module comprises an audible/visual alarm and an interconnection component, is connected to the equipment gateway through a Modbus interface by a Modbus Server built in the interconnection component, and triggers different alarm effects according to different alarm types in the alarm module information model.
Preferably, the intelligent modularized avionics test equipment management and control system based on the OPC UA protocol gateway further comprises a universal interface module;
the module access assembly provides a protocol conversion assembly for the universal interface module and converts the module operation interface into a standard operation interface;
and the interface collecting assembly and the interface adapter of the universal interface module are provided with a path of ground/open discrete quantity signal, when the interface adapter and the interface collecting assembly are in a connection state, the discrete quantity is represented as grounding, when the interface adapter and the interface collecting assembly are in a disconnection state, the discrete quantity is represented as disconnection, and the universal interface module information model is connected to the equipment gateway through the discrete quantity interface, namely, the connection state of the interface adapter is monitored, and meanwhile, the connection times are counted.
Preferably, the intelligent modularized avionics test equipment management and control system based on the OPC UA protocol gateway further comprises an informationized management module;
the informatization management module carries out on-line remote monitoring on the running state of the test equipment and provides equipment management application and a data acquisition component; the data acquisition component integrates the OPC UA Client, is connected with the gateway OPC UAServer component, and acquires the basic information and the real-time state of the test equipment; the device management application provides a man-machine interaction interface, and can configure the address of the device OPC UA so that the data acquisition component is connected with the test device, and meanwhile, the device data concerned is screened and monitored.
The invention has the beneficial effects that:
1. the health management unified framework of the modularized avionics testing equipment is provided, an OPC UA information model is fully utilized, each functional module of the testing equipment is defined through an object, state information of each module is obtained in a centralized mode, and integrated health monitoring and management of the testing equipment are achieved;
2. based on the thought of an OPC UA informatization model, standardized variables and methods of each functional model are abstracted, even if each functional component comes from different manufacturers, the interface with the abstract model can be easily realized through a protocol conversion middleware, the effect of layering decoupling of an external interface and control logic of a bottom component is achieved, and therefore the standardization of an equipment management interface is realized;
3. and the switching between an offline mode and an online mode is supported, in the offline mode, the main control module can easily access the gateway through the browser to acquire the health state of the equipment, and in the online mode, the equipment state can be acquired by the OPC UA interface to be remotely managed by the informationized management module.
Drawings
Fig. 1 is a physical frame of an avionics measurement device according to the present invention.
FIG. 2 is a functional framework of a control system for an avionics measurement device in accordance with an embodiment of the present invention.
FIG. 3 is a diagram of a visual modeling tool page in accordance with an embodiment of the present invention.
Fig. 4 is an XML example of an information model according to an embodiment of the present invention.
FIG. 5 is a schematic diagram of a test equipment information model framework according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples.
Referring to fig. 2, the intelligent modularized avionics test equipment management and control system based on OPC UA protocol gateway provided in this embodiment includes an equipment gateway, OPC UA Server and Web browser residing in a main control module, OPC UA Server residing in a simulation excitation and acquisition module, a temperature monitoring module and an alarm module. In order to facilitate understanding, the additionally installed equipment gateway, the temperature monitoring module and the alarm module are incorporated into the testing equipment together to form a new module of the testing equipment. Preferably, the intelligent modularized avionics test equipment management and control system based on the OPC UA protocol gateway can also provide an informationized management module for accessing and centrally managing a plurality of test equipment. The following describes an avionics measurement device and a management system thereof according to this embodiment.
Device gateway
The equipment gateway is a management center of the avionics testing equipment and mainly realizes interface integration and centralized management of each module of the testing equipment. The device gateway shown in this embodiment is a micro-host based on an x86 architecture, and the physical interface includes hardware interface resources such as serial ports, ethernet, discrete amounts, and the like, and runs the Debian 10 operating system. On the operating system, basic components such as a module access component, a Web service component, a gateway OPC UA Server component and the like are constructed, and the specific functions are as follows:
1. module access component: and the system is responsible for accessing and adapting each module of the test equipment, generates an instance of each module of the test equipment in the equipment gateway, and forms a standard operation interface in a unified form, so that the gateway OPCUA Server component can conveniently call. Specifically, for the main control module and the simulation excitation and collection module, an OPC UA Server of the main control module and the simulation excitation and collection module is connected through an Ethernet interface, and based on OPCUA protocol specification, an OPC UA Client is built to map the main control module and the simulation excitation and collection module instance, so as to form an OPC UA object and a standard operation interface; for the temperature monitoring module and the alarm module, the Modbus Master of the temperature monitoring module and the alarm module is connected through the Ethernet, and a Modbus object and a standard operation interface can be formed based on Modbus protocol specifications by internally building a Modbus Slave mapping temperature monitoring module and an alarm module instance; for a universal interface module and a power supply module adopting a nonstandard industrial interconnection protocol, a protocol conversion assembly is provided for converting a module operation interface into a standard operation interface.
In this embodiment, the module access component is implemented by Python language programming, and based on an open source Python-opcua module and a PyModbus module, OPC UA Client and Modbus slave are respectively constructed, and by configuring a main control module, an example of a simulation excitation and acquisition module, a physical channel ID of each module connection of a temperature monitoring module and an alarm module, an example can be directly mapped to form a standard operation interface; based on RS232 and DIO interface drive, the data interfaces of the power supply module and the universal interface module are packaged to form a standard operation interface conforming to Python language specifications.
A web service component: providing a visual modeling tool capable of digitally expressing basic information and components of test equipment to form an extensible markup language (XML) -based test equipment information model; providing a link configuration tool, which can bind an operation interface provided by the module access component to an address space opened by the gateway OPC UAServer component to open a complete data acquisition and control link; the test equipment management tool is provided, an OPC UA Client is embedded, the gateway OPC UA Server component can be connected to realize state check and remote self-check and switch control of each module of the test equipment, and when abnormal states of each module of the test equipment are monitored, the test equipment management tool controls the alarm module to generate an audible and visual alarm.
According to the embodiment, a Web service component is constructed based on an open source Django WEB framework of Python and is realized by adopting a layered architecture, a service layer mainly provides services such as OPC UA Client, data routing and data storage, and an application layer provides a man-machine interaction interface of a visual modeling tool, a link configuration tool and a test equipment management tool.
The visual modeling tool is shown in fig. 3, supports the display of an information model of each module of the test equipment, the display of a Tree type structure of the test equipment information model and the configuration and display of node information, provides metadata types facing to the configuration of the test equipment, can quickly create nodes of Object types, variable types and Method types based on the metadata types, and respectively corresponds to the instances of the equipment main body and each module, collected and configured data and control instructions of each module. After the information model is built, an extensible markup language (XML) -based test equipment information model can be derived, as shown in FIG. 4, an XML model description file can be read and used by a gateway OPC UA Server, and the equipment modeling efficiency is remarkably improved.
The information model comprises the following basic elements:
a) Static information: including test equipment name, number, manufacturer and delivery date;
b) Process information: including test equipment status information;
c) Configuration information: the method comprises the steps of including a current test object of the test equipment;
d) The equipment comprises the following components: the test equipment consists of a main control module, a simulation excitation and monitoring module, a universal interface module, a power supply module, a temperature monitoring module and an alarm module, wherein each module provides a unified and standard information model architecture, and the description of each component can be directly nested with the information model of the corresponding module.
The link configuration tool displays an information model running on the gateway OPC UA Server component, and can associate and bind a variable data source and a method interface in the information model with a data interface provided by the module access component, so that an upper link and a lower link of data acquisition and control are opened.
The test equipment management tool provides operation and maintenance related function support for equipment operation and maintenance personnel, and basic information, composition relation and real-time operation state of each module of the test equipment can be displayed through a graphical interface by connecting with the gateway OPC UA Server component; the historical state data of the test equipment can be counted and analyzed, and basic tables, graphs and scatter diagrams are provided for displaying the data; the self-checking device can perform self-checking on the testing device main body and each module of the testing device, and display the self-checking result; the on-off of each module of the test equipment can be remotely controlled; the variable real-time monitoring can be set, and when the abnormal state of the test equipment module is monitored, the alarm module can be controlled by the OPC UA Server to generate an alarm signal.
3. Gateway OPC UA Server component: the method can read the information model generated by the visual modeling tool, open up an address space in a memory address and establish a mapping node of the information model, and further map a standard operation interface and data provided by the module access assembly onto a node corresponding to the address space through the OPC UAServer configuration tool so as to respond to the acquisition or control request of the test equipment management tool or the informatization management module in the Web service assembly. Meanwhile, the gateway OPC UA Server component can collect state data of each module of the test equipment through frequency defined by the information model, update data in an address space and provide a relational database for storing and inquiring historical data of the state information.
In this embodiment, the gateway OPC UA Server component is constructed by using Python-opcua module based on Python, and supports reading an XML format information model configuration table under a specific directory, and constructs an equipment information model access interface through ethernet, where model node information is stored in an information model address space, and addresses support external access. The information model configuration table in the XML format can be designed by using common modeling software such as uaModeler, and can also be designed by using the visual modeling tool provided in the embodiment. The OPC UA server can completely support data acquisition, data setting and method execution of several basic functions, and can realize state monitoring, parameter configuration and remote control of test equipment.
(II) OPC UA Server and Web browser residing in the Master control Module
The main control module used by the test equipment related to the embodiment is a high-performance computer which can be put on a shelf, an x86 architecture is adopted, an Ethernet interface is provided, and an operating system runs a Galaxy kylin Linux desktop operating system. The main control module runs test software and OPC UA Server, the test software adopts an iTest software platform which is self-developed by China aviation radio and electronic institute, and the iTest software platform is constructed by adopting Python language and provides a high-performance script execution and control engine. The aviation radio and electronic institute designs a standardized XML information model for the main control module, and can configure information such as the name, serial number, CPU model, memory size, hard disk size and the like of the main control module.
The OPC UA Server residing in the main control module is responsible for collecting basic operation parameters of the main control module and providing the operation state of the main control module to the equipment gateway through the Ethernet based on the standard information model of the main control module. In this embodiment, the OPC UA Server can read the standard information model of the main control module in XML format, and obtain the occupation condition of resources such as system CPU, memory, hard disk, etc. through the psuil module, obtain the test software state through the Linux task management interface, obtain the test item information through the test software interface, and finally perform protocol encapsulation through the OPC UA Server, and open the interface to the data gateway.
The master control module standard information model comprises the following basic elements:
a) Static information: the method comprises the steps of including a main control module name, a serial number, a CPU model, a memory size, a hard disk size, an operating system, an IP address and a delivery date;
b) Process information: the system comprises CPU utilization rate, memory utilization rate, hard disk utilization rate, system load, real-time flow, login personnel, test items and the like;
c) Configuration information: the self-checking and switching control comprises a main control module;
d) The assembly comprises: the subordinate component comprises test software, and the test software comprises test software version and test software running state information.
The Web browser which resides in the main control module can access the Web service component of the equipment gateway, the information model modeling of each module of the test equipment is carried out through the visual modeling tool, and the test equipment management work is carried out through the test equipment management tool. In the test equipment, as a functional module for executing test execution control, only the main control module can provide a display for user interaction, so that data interaction between the main control module and the equipment gateway is bidirectional, on one hand, the main control module gathers own state data to the equipment gateway through Ethernet, and on the other hand, the main control module accesses a page of a Web tool provided by the equipment gateway as an entrance of man-machine interaction to execute test equipment modeling and state management work.
(III) OPC UA Server residing in simulation excitation and acquisition module
The simulation excitation and collection module used by the test equipment related to the embodiment is an 8-slot-position certain-brand shelf PXIe industrial personal computer, and an ARINC429 simulation board card and an FC simulation board card are also provided besides a zero-slot controller. The method comprises the steps that a Debian operating system is operated in an industrial personal computer main control, a test middleware based on Python language and an OPC UA Server constructed based on a Python-opcua module are provided on the operating system, the test middleware encapsulates a self-checking interface of a simulation board card arranged on the industrial personal computer, an aviation radio electronic research institute designs a standardized XML information model for a simulation excitation and collection module, and information such as names, serial numbers, CPU models, memory sizes and hard disk sizes of the simulation excitation and collection module can be configured.
The OPC UA Server residing in the simulation excitation and collection module is responsible for collecting basic operation parameters of the simulation excitation and collection module, and providing the operation state of the simulation excitation and collection module to the equipment gateway through the Ethernet based on the standard information model of the simulation excitation and collection module. In this embodiment, the OPC UA Server establishes an information model for the self-checking interface of the test middleware package and opens the information model to the device gateway for access, in addition, the OPCUA Server obtains the occupation condition of resources such as a system CPU, a memory, a hard disk and the like through the psuil module, obtains the running state of the test middleware through the Linux task management interface, and opens the information model to the device gateway through the OPC UA Server.
The simulation excitation and acquisition module information model comprises the following basic elements:
a) Static information: the system comprises a simulation excitation and acquisition module name, a serial number, a CPU model, a memory size, a hard disk size, an operating system, an IP address and a delivery date;
b) Process information: the method comprises the steps of CPU utilization rate, memory utilization rate, hard disk utilization rate, system load and the like;
c) Configuration information: the self-checking and switching control comprises a main control module;
d) The assembly comprises: the subordinate component comprises a simulation board card and a test middleware, wherein the simulation board card comprises board card models, brands and board card state information, and the test middleware comprises version and running state information.
(IV) temperature monitoring Module
The temperature monitoring module is used for collecting the outer wall temperature of the key module such as the main control module, the simulation excitation and monitoring module and the like of the test equipment and providing the outer wall temperature of the key module for the equipment gateway based on the information model of the temperature monitoring module. The temperature monitoring module comprises a sensor and an interconnection component, the temperature monitoring module provided by the embodiment comprises two temperature sensors which are respectively positioned on an upper shell of the main control module and the simulation excitation and monitoring module, and after temperature information acquired by the sensors is converted into digital quantity, the temperature information is connected to an equipment gateway through a Modbus interface based on a Modbus Server built in the interconnection component through a Modbus information model. The temperature monitoring module information model should define a temperature alarm threshold value, and when the temperature exceeds the limit, the alarm module is controlled to generate an alarm signal. In this embodiment, the temperature monitoring module is driven by a raspberry group development board.
The temperature monitoring module information model comprises the following basic elements:
a) Static information: the temperature monitoring module comprises a brand, a model, a serial number and a delivery date;
b) Process information: comprises a temperature value;
c) Configuration information: including temperature alarm threshold settings and switch control.
(V) alarm module
The alarm module is used for generating alarm signals and consists of an audible/visual alarm and an interconnection component. The alarm module provides a control interface and is connected to the equipment gateway through the Modbus Server built in the interconnection assembly via the Modbus interface, when the equipment is abnormal, including the condition that the threshold of the temperature sensor is overrun and the state of each functional module is abnormal, the equipment gateway can control the alarm module to generate alarm signals through the alarm module information model, and the alarm module can trigger different alarm effects according to different alarm types. The alarm module that this embodiment provided is located test equipment top, and main part is four-color safety lamp, is equipped with 4 way change over switch, controls through Modbus interface, and during normal equipment work, safety etc. be green, and alarm lamp can light yellow lamp when the hardware trouble appears, and yellow lamp bright 5 minutes if the trouble does not respond the maintenance, can light red lamp, if equipment is in maintenance mode, the safety lamp is orange. The equipment gateway monitors the states of all parts of the equipment in real time, and controls the alarm module when the equipment states are switched.
The alarm module information model comprises the following basic elements:
a) Static information: the method comprises the steps of including the brand, model, serial number and delivery date of the alarm module;
b) Process information: the current alarm type is contained;
c) Configuration information: including alarm alert type settings and switch controls.
Sixth, informationized management module
The informatization management module is used as an optional module and is mainly used for carrying out on-line remote monitoring on the running state of the test equipment in a factory scene. The information management module adopts an IoT platform developed by a certain company to carry out secondary development, the platform is deployed in a rack-mounted server, and a B/S architecture design is adopted to provide equipment management application and a data acquisition component. The data acquisition component integrates the OPC UA Client, can be connected with a gateway OPC UA Server component of a device gateway of a plurality of test devices, and can acquire basic information and real-time states of the plurality of test devices. The device management application provides a man-machine interaction interface, and can configure the address of the device OPC UA so that the data acquisition component is connected with the test device, and meanwhile, the device data concerned is screened and monitored.
(seventh) test equipment power supply module
If the power supply module of the test equipment adopts a programmable commercial power supply, the existing RS232 management interface of the programmable power supply can be utilized to access the gateway and realize management and control based on the information model of the temperature power supply module, and if the power supply is customized, the RS232 interface is required to be developed by the interface board at the same time, so that the acquisition of the power supply output state is realized. The power supply module used by the test equipment in the embodiment adopts a programmable power supply, and the power supply output supports 12V and 28V, and two paths are respectively provided. The power supply module provides a management program based on an RS232 interface, supports setting and controlling of each path of output, and supports inquiry of the power supply output state. The power supply module is connected to the equipment gateway through the RS232 interface, and monitoring and remote control of the power supply state can be realized through the gateway.
The power supply module information model comprises the following basic elements:
a) Static information: the power supply module comprises a brand, a model, a voltage output range, a current output range, rated power, maximum power, output path number, serial numbers and delivery dates;
b) Process information: the current output voltage and current values of each path are included;
c) Configuration information: including output voltage and current settings, output control, and switching control of the power supply.
(eighth) Universal interface Module for test Equipment
The universal interface module of the test equipment is mainly connected by hardware, whether the connection state is monitored or not can be judged according to the actual requirement of equipment management, and the service life of the connector can be accurately predicted by monitoring the connection times. If the connection state of the equipment and the product needs to be collected, a ground/discrete quantity (DIO) signal can be added on an interface collecting component and an interface adapter of the universal interface module, when the interface adapter and the interface collecting component are in a connection state, the discrete quantity is expressed as grounding, when the interface adapter and the interface collecting component are in a disconnection state, the discrete quantity is expressed as disconnection, and the connection state of the interface adapter can be monitored based on the information model of the universal interface module and connected to the equipment gateway through the discrete quantity interface, and meanwhile, the connection times can be counted.
The universal interface module information model comprises the following basic elements:
a) Static information: the model number, serial number and delivery date of the universal interface module are contained;
b) Process information: including the connection status of the adapter.
The configuration flow of the avionics test equipment management and control system based on the OPC UA protocol gateway is as follows:
step S01, connecting a main control module, a simulation excitation and acquisition module, a universal interface module, a temperature monitoring module, an alarm module and a power supply module to an equipment gateway through corresponding interfaces, and starting test equipment;
step S02, configuring a gateway module access assembly, configuring hardware channels of a main control module, a simulation excitation and acquisition module, a temperature monitoring module and an alarm module, and packaging serial ports and DIO interfaces of a general interface module and a power supply module;
step S03, modeling the testing equipment through a visual modeling tool of the equipment gateway (the information model framework of the testing equipment in the embodiment is shown in fig. 5), storing a generated XML file under the gateway/opt/XML/path after the model is established, restarting the gateway OPC UA Server service, automatically loading the XML file by the OPC UA Server, and establishing an address space mapped by the information model;
step S04, the variable data source and method interface in the information model are associated and bound with the data interface provided by the module access component through the equipment gateway link configuration tool, and the test equipment management tool is opened to see the basic information of the test equipment and the real-time state data of each functional module of the test equipment;
step S05, the test equipment is connected to a rack-mounted server of the information management module through Ethernet, and the user interface of the information management module is configured with the address of the equipment OPC UA and is connected with the address, so that the basic information and the real-time state data of the equipment can be checked.
It will be understood that equivalents and modifications will occur to those skilled in the art in light of the present invention and their spirit, and all such modifications and substitutions are intended to be included within the scope of the present invention as defined in the following claims.
Claims (7)
1. An intelligent modularized avionics test equipment management and control system based on an OPC UA protocol gateway comprises an equipment gateway and is characterized in that the equipment gateway comprises a module access component, a Web service component and a gateway OPC UA Server component;
the module access assembly is responsible for accessing and adapting each module of the test equipment, generating an instance of each module of the test equipment in the equipment gateway, and forming a standard operation interface in a unified form;
the Web service component provides a visual modeling tool, can digitally express basic information and components of the test equipment and forms various information models; providing a link configuration tool, which can bind an operation interface provided by the module access component to an address space opened by the gateway OPC UA Server component to open a complete data acquisition and control link; providing a test equipment management tool, embedding OPC UA clients, and being capable of connecting with a gateway OPC UA Server component to realize state check and remote self-checking and switch control of each module of the test equipment;
the gateway OPC UA Server component can read the information model generated by the visual modeling tool, open up an address space in a memory address and establish a mapping node of the information model, and further map a standard operation interface and data provided by the module access component onto a node corresponding to the address space through the OPC UA Server configuration tool to respond to the acquisition or control request; meanwhile, the gateway OPC UA Server component can collect state data of each module of the test equipment through frequency defined by the information model, update data in an address space and provide a relational database for storing and inquiring historical data of the state information.
2. The intelligent modularized avionics test equipment management and control system based on an OPC UA protocol gateway of claim 1, further comprising an OPC UA Server and a Web browser residing in a master control module;
the OPC UA Server residing in the master control module is responsible for collecting the operation parameters of the master control module and providing the operation parameters of the master control module to the equipment gateway through the Ethernet based on the standard information model of the master control module;
the Web browser residing in the main control module can access the Web service component of the equipment gateway, information model modeling of each module of the test equipment is carried out through the visual modeling tool, and test equipment management work is carried out through the test equipment management tool;
the module access component is connected with an OPC UA Server of the main control module through an Ethernet interface, and based on OPC UA protocol specifications, an OPC UA Client is built in to map an example of the main control module, so that an OPC UA object and a standard operation interface are formed.
3. The intelligent modularized avionics equipment control system based on OPC UA protocol gateway of claim 1, further comprising OPC UA Server residing in simulation excitation and collection module;
the OPC UA Server residing in the simulation excitation and collection module is responsible for collecting the operation parameters of the simulation excitation and collection module, and providing the operation parameters of the simulation excitation and collection module to the equipment gateway through the Ethernet based on the standard information model of the simulation excitation and collection module;
the module access component is connected with an OPC UA Server of the simulation excitation and collection module through an Ethernet interface, and based on OPC UA protocol specifications, an OPC UA Client mapping simulation excitation and collection module example is built in to form an OPC UA object and a standard operation interface.
4. The intelligent modularized avionics equipment management and control system based on an OPC UA protocol gateway of claim 1, further comprising a temperature monitoring module;
the temperature monitoring module comprises a sensor and an interconnection component, wherein the sensor acquires temperature information of a key module in the test equipment, converts the temperature information into digital quantity to form a temperature monitoring module information model, and is connected to the equipment gateway through a Modbus interface by a Modbus Server built in the interconnection component;
the module access assembly is connected with a Modbus Master of the temperature monitoring module through the Ethernet, and based on a Modbus protocol specification, a Modbus Slave mapping temperature monitoring module example is built in to form a Modbus object and a standard operation interface.
5. The intelligent modularized avionics equipment management and control system based on OPC UA protocol gateway of claim 4, further comprising an alarm module;
the module access assembly is connected with a Modbus Master of the alarm module through an Ethernet, and based on a Modbus protocol specification, a Modbus Slave mapping alarm module instance is built in to form a Modbus object and a standard operation interface;
defining a temperature alarm threshold in the information model of the temperature monitoring module, and controlling the alarm module to generate an acousto-optic alarm when the test equipment management tool of the Web service component monitors that the temperature exceeds the alarm threshold and other abnormal conditions;
the alarm module comprises an audible/visual alarm and an interconnection component, is connected to the equipment gateway through a Modbus interface by a Modbus Server built in the interconnection component, and triggers different alarm effects according to different alarm types in the alarm module information model.
6. The intelligent modularized avionics equipment management and control system based on OPC UA protocol gateway of claim 1, further comprising a universal interface module;
the module access assembly provides a protocol conversion assembly for the universal interface module and converts the module operation interface into a standard operation interface;
and the interface collecting assembly and the interface adapter of the universal interface module are provided with a path of ground/open discrete quantity signal, when the interface adapter and the interface collecting assembly are in a connection state, the discrete quantity is represented as grounding, when the interface adapter and the interface collecting assembly are in a disconnection state, the discrete quantity is represented as disconnection, and the universal interface module information model is connected to the equipment gateway through the discrete quantity interface, namely, the connection state of the interface adapter is monitored, and meanwhile, the connection times are counted.
7. The intelligent modularized avionics equipment management and control system based on an OPC UA protocol gateway according to claim 1, further comprising an informationized management module;
the informatization management module carries out on-line remote monitoring on the running state of the test equipment and provides equipment management application and a data acquisition component; the data acquisition component integrates the OPC UA Client, is connected with the gateway OPC UA Server component, and acquires the basic information and the real-time state of the test equipment; the device management application provides a man-machine interaction interface, and can configure the address of the device OPC UA so that the data acquisition component is connected with the test device, and meanwhile, the device data concerned is screened and monitored.
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