CN109636669B - Multi-process architecture-based transformer substation online monitoring method - Google Patents
Multi-process architecture-based transformer substation online monitoring method Download PDFInfo
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Abstract
The application relates to a transformer substation online monitoring method based on a multi-process architecture, which divides the online monitoring function of a transformer substation into three different types of processes, namely a main frame process, a drawing process and a plug-in process, wherein the message interaction among the processes adopts a named pipeline mode, the data flow interaction among the processes adopts a shared memory mode, the interaction information among the processes adopts general dynamic data object transmission, and the main frame process is used for responsible for picture display, resource scheduling, the message interaction among the processes and user input; the drawing process is used for analyzing the configuration picture file and drawing the graph, and sending the drawing result to the main frame process for display; the plug-in process is responsible for providing resources and user input for online monitoring of plug-ins. According to the application, different applications and different pictures are placed in different processes, so that the influence on the whole system caused by the abnormality of a certain application or picture is avoided, and a powerful guarantee is provided for the stable and reliable operation of the substation power automatic system.
Description
The application is divided application of the following application, and the application date of the original application is: 20 days of 7 months of 2015, the application number of the original application: 201510428648.3, the name of the application of the original application: a transformer substation online monitoring method based on a multi-process architecture.
Technical Field
The application relates to a substation online monitoring method based on a multi-process architecture, and belongs to the technical field of comprehensive automation of intelligent substations of power systems.
Background
With development and perfection of smart grid technologies, intelligent substations gradually become key to smart grid technologies. The existing intelligent transformer stations are designed and built according to the building technical specification of an integrated monitoring system of the intelligent transformer stations. According to the requirement of the specification, the integrated monitoring system is transversely communicated with each motorized equipment in the transformer substation, and unified access and unified storage of total station information are realized through integrated optimization, so that support is provided for professional users such as automation, protection, metering, operation and inspection and the like. The integrated monitoring is divided into five applications of operation monitoring, operation and control, intelligent alarm and information comprehensive analysis, operation management and auxiliary application according to functions, and a data display and control platform of the whole station is provided. At present, protection logic visualization and plug and play technology of secondary devices in a transformer substation are mature, and online monitoring is a trend of directly reading graphic files from the secondary devices to replace manual drawing.
The increasing functional applications within intelligent substations place higher demands on the on-line monitoring systems of the substations. The online monitoring system is not only used for simple monitoring and control, but also used for expanding the accessed content from a single manufacturer to different manufacturers. The traditional online monitoring mostly adopts a single-process architecture, the online monitoring system cannot effectively utilize the resources of the operating system due to the increase of functions, the efficiency is low, and the stability of the online monitoring system is reduced due to the multi-source data. And after different applications are dispersed to different independent processes, the system functions become dispersed to be unfavorable for the operation and control of users. Different applications in the substation are functionally independent, but the used resources may be the same, for example, graphical pictures are needed as display platforms. Therefore, when one application is abnormal, other applications and even the whole online monitoring cannot be influenced, because the application functions are more, and the data sources are possibly from different factories, the process of constructing the transformer substation which is powerful and never abnormal is almost impossible, and the online monitoring of the transformer substation at present has low online monitoring efficiency and unstable operation due to the abnormal condition of a certain application or picture.
Disclosure of Invention
The application aims to provide a transformer substation online monitoring method based on a multi-process architecture, so as to avoid the problems of low online monitoring efficiency and unstable operation of a transformer substation caused by abnormal application or picture.
The application provides a transformer substation online monitoring method based on a multi-process architecture for solving the technical problems, which divides the online monitoring function of a transformer substation into three different types of processes, namely a main frame process, a drawing process and a plug-in process, wherein the main frame process is used for taking charge of picture display, resource scheduling, information interaction among processes and user input; the drawing process is used for analyzing the configuration picture file and drawing the graph, and sending the drawing result to the main frame process for display; the plug-in process is responsible for providing resources and user input for the online monitoring plug-in.
And sending a heartbeat between the main frame process and the drawing process and a plug-in process in each time period to determine whether the drawing process and the plug-in process respond or not, if the drawing process and the plug-in process do not send heartbeat messages in the period time, considering that the drawing process and the plug-in process are abnormal and are forcedly restarted, and if the drawing process and the plug-in process do not receive the heartbeat of the main process in the period time, considering that the main process is abnormal and forcedly quit.
The beneficial effects of the application are as follows: the application divides the online monitoring function of the transformer substation into three different types of processes, namely a main frame process, a drawing process and a plug-in process, wherein the information interaction among the processes adopts a named pipeline mode, the data flow interaction among the processes adopts a shared memory mode, the interaction information among the processes adopts general dynamic data object transmission, and the main frame process is used for being responsible for picture display, resource scheduling, information interaction among the processes and user input; the drawing process is used for analyzing the configuration picture file and drawing the graph, and sending the drawing result to the main frame process for display; the plug-in process is responsible for providing resources and user input for online monitoring of plug-ins. According to the application, different applications and different pictures are placed in different processes, so that the influence on the whole system caused by abnormality of a certain application or picture is avoided, and a powerful guarantee is provided for stable and reliable operation of the substation power automation system.
Drawings
FIG. 1 is a block diagram of an application function of a substation on-line monitoring system;
FIG. 2 is a diagram of a multi-process scheme-based architecture of the present application;
FIG. 3 is an online monitoring process management interface.
Detailed Description
The following describes the embodiments of the present application further with reference to the drawings.
As shown in fig. 1, the online monitoring of the transformer substation can be divided into five types of applications, namely operation monitoring, operation and control, intelligent alarm and information comprehensive analysis, operation management and auxiliary application, and can be further divided into a picture display type and a service processing type according to functions. As shown in fig. 2, the online monitoring function of the transformer substation is divided into three different types of processes, namely a main frame process, a drawing process and a plug-in process, the message interaction among the processes adopts a named pipeline mode, the data flow interaction among the processes adopts a shared memory mode, the interaction information among the processes adopts general dynamic data object transmission, wherein the main frame process is used for taking charge of picture display, resource scheduling, information interaction among the processes and user input; the drawing process is used for analyzing the configuration picture file and drawing the graph, and sending the drawing result to the main frame process for display; the plug-in process is used for providing resources and user input for the online monitoring plug-in, the plug-in process is a collection of service processing functions and is responsible for service processing of the whole system, the plug-in process writes processed data into the real-time library, the data are displayed in the picture through the drawing process, and the drawing process is divided into a monitoring picture drawing process and a device picture drawing process according to picture types because pictures of the device come from different factories.
When the user browses the online monitoring picture, the main frame process reads the graphic file from the disk and notifies the drawing process. The drawing process reads the content of the picture file and draws the graph after receiving the notification, and sends the drawn graph to the main frame process for display, and the specific working process is as follows:
1. and starting a main frame process, and automatically starting a drawing subprocess and a plug-in subprocess when the main frame process is started.
Because the inter-process interaction mode based on the named pipes is simple and reliable to apply, the message interaction among the processes in the embodiment adopts the named pipes, and when the sub-processes are started, the main frame process and each sub-process establish the named pipes of drawing process names and Process Identifications (PIDs).
2. The user selects a picture to be opened in the interface, the main frame process determines an interactive drawing process according to the picture type selected by the user, and sends a picture opening message to the process through a pipeline.
The application adopts the mode of dynamic object mapping to construct the message interaction model among processes, the dynamic object is composed of a plurality of groups of 'field + values', the sending party and the receiving party agree in advance that different fields exist in the object according to different message types, when the sending party sends the message, the field is dynamically added for the object by taking the SetFieldValueByName as the object and the value of the field is set, the dynamic object provides a sustainable interface, and when the sending party sends the message, the object is serialized into binary data stream; after receiving the data stream, the receiver converts the data stream into a combination of 'field + value' through an anti-serialization interface, and obtains a corresponding data value through the GetFieldValueByName. The dynamic object mapping mode reduces the coupling between the transmission object and the service and improves the expandability of the data object.
3. And after receiving an open picture command sent by the main frame process, the drawing process finds a corresponding file from the disk, and reads the file content according to a specified format. At this time, the drawing engine in the drawing process starts to work, and according to the state of the primitives in the real-time library, the file content is rendered into corresponding pictures and transferred to the file transmission engine in the drawing process, and meanwhile, the data in the pictures are subscribed to the real-time library. Since the rendered file content may be large, it is inefficient to frequently send the file stream through the pipeline. In the scheme, the content of the file is transmitted among processes in a mode of sharing the memory. At this time, the file transfer engine converts the picture into a binary stream, writes the binary stream into the shared memory, and sends the handle of the shared memory and the size of the shared region to the main frame process through the pipeline.
4. And after receiving the picture information sent by the drawing process, the main frame process takes out the file content of the picture from the corresponding shared area according to the handle of the shared memory and the size of the shared area, converts the file content into a picture format and displays the picture in the interface.
In the embodiment, the drawing mode of the graphics adopts a multi-process cooperation mode, different drawing processes are adopted for different types of graphics files, and the graphics files are converted into a unified picture format (PNG), so that the abnormity of online monitoring caused by inconsistent graphics file formats provided by different manufacturers is avoided.
When a user performs mouse operation or input in an interface, the main frame process sends an event and a position to a drawing process, the drawing process responds according to the event type and the position and returns a result to the main frame process, and the main frame process performs corresponding mouse pointer change and other processes according to the response result, and the specific process is as follows:
(1) When the mouse moves in the interface, the main frame process acquires the coordinate position of the mouse and sends the coordinate position to the drawing process through a message.
(2) The drawing process acquires the information of the mouse position and then notifies the operation management engine.
(3) The operation management process obtains the primitive information in the graphic picture through the mouse position, determines the corresponding mouse cursor type according to the current primitive, and sends the mouse type to the main frame process through the message.
(4) The main frame process changes the current cursor according to the received mouse type.
(5) When the mouse clicks on the picture, the main frame process sends the clicking event and the current cursor position to the drawing process through a message.
(6) The drawing process acquires the click event and the mouse position information and then notifies the operation management engine.
(7) The operation management engine obtains the customized operation name of the mouse click event from the graph and sends the operation name to the main frame process.
(8) And the main frame process sends the operation to the plug-in process according to the received operation name.
(9) The plug-in process informs the service processing engine according to the received operation name and makes corresponding operation, such as remote control and the like.
(10) The business processing engine writes the processing result into the real-time library.
(11) And after the real-time library data is changed, notifying the drawing process to redraw the graph and sending the drawing process to the main frame process.
(12) The main frame process displays the change data.
A heartbeat needs to be sent between the main frame process and the sub-process in each time period to determine whether the sub-process has a response. If the sub-process does not send the heartbeat message within the period time, the sub-process is considered to be abnormal and the sub-process is forcedly restarted. If the sub-process does not receive the heartbeat of the main process in the period time, the main process is considered to be abnormal, and the sub-process forces the sub-process to exit. The main frame process provides a sub-process management interface as shown in fig. 3.
The above embodiments are only for aiding in understanding the core concept of the present application, and should not be construed as limiting the application, and any modifications in the specific embodiments and application scope of the present application, which are obvious to those skilled in the art from the inventive concept, should be included in the scope of the present application.
Claims (2)
1. The online monitoring method of the transformer substation based on the multi-process architecture is characterized in that the online monitoring function of the transformer substation is divided into three different types of processes, namely a main frame process, a drawing process and a plug-in process, wherein the main frame process is used for being responsible for picture display, resource scheduling, information interaction among processes and user input; the drawing process is used for analyzing the configuration picture file and drawing the graph, and sending the drawing result to the main frame process for display; the plug-in process is used for providing resources and user input for the online monitoring plug-in; the information interaction model among processes is constructed in a dynamic object mapping mode, a dynamic object consists of a plurality of groups of field plus values, different fields in the object are agreed in advance by a sending party and a receiving party according to different message types, when the sending party sends a message, the field is dynamically added for the object and the value of the field is set, a sustainable interface is provided for the dynamic object, and when the sending party sends the message, the object is serialized into a binary data stream; after receiving the binary data stream, the receiver converts the data stream into a field + value combination through an anti-serialization interface to obtain a corresponding data value.
2. The transformer substation online monitoring method based on the multi-process architecture according to claim 1, wherein a heartbeat is sent between the main frame process and the drawing process and plug-in process in each time period to determine whether the drawing process and the plug-in process respond or not, if the drawing process and the plug-in process do not send heartbeat messages in the period time, the drawing process and the plug-in process are considered to be abnormal and are forcedly restarted, and if the drawing process and the plug-in process do not receive the heartbeat of the main process in the period time, the main process is considered to be abnormal and is forcedly exited.
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| CN201510428648.3A CN105096210B (en) | 2015-07-20 | 2015-07-20 | A kind of substation's on-line monitoring method based on multi-process framework |
| CN201811506397.6A CN109636669B (en) | 2015-07-20 | 2015-07-20 | Multi-process architecture-based transformer substation online monitoring method |
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| CN105630483B (en) * | 2015-12-16 | 2019-01-04 | 青岛海信网络科技股份有限公司 | A kind of display methods and device of configuration pel |
| CN106990991B (en) * | 2017-04-07 | 2020-08-18 | 北京奇虎科技有限公司 | Method, device and system for mapping plug-in process |
| CN109410449B (en) * | 2017-08-16 | 2021-11-16 | 许继集团有限公司 | Charging pile control platform |
| CN108737175B (en) * | 2018-05-19 | 2021-04-23 | 上海分布信息科技有限公司 | Node management method and implementation system thereof |
| CN109525281A (en) * | 2018-11-01 | 2019-03-26 | 北京全路通信信号研究设计院集团有限公司 | A kind of monitoring method of monitoring system |
| CN112506684A (en) * | 2021-02-05 | 2021-03-16 | 全时云商务服务股份有限公司 | Method, system and storage medium for quickly transmitting big data across processes |
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| CN109636669A (en) | 2019-04-16 |
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