CN110795498A - Railway power supply dispatching cluster monitoring system visualization method based on column database reverse index - Google Patents
Railway power supply dispatching cluster monitoring system visualization method based on column database reverse index Download PDFInfo
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- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/27—Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/22—Indexing; Data structures therefor; Storage structures
- G06F16/221—Column-oriented storage; Management thereof
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/22—Indexing; Data structures therefor; Storage structures
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/23—Updating
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
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- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
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- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
Abstract
The invention provides a novel visualization method of a railway power supply dispatching cluster monitoring system based on column database reverse indexing. And storing mass monitoring data of the railway power supply dispatching monitoring system by using the HBase non-relational database cluster, and generating a designed monitoring data reverse index in the cluster. And importing the SVG document of the basic operation state of the railway power supply system into an SVG canvas of the railway power supply dispatching monitoring system through a file address, then regularly sending a non-primary key value data query request to the monitoring data stored in the database cluster, and realizing the rapid query of the data items by means of reverse indexing. And when the operating state of certain electrical equipment is inquired to change, updating the corresponding primitive attribute, and synchronously and visually displaying the real-time operating state of the railway power supply system in a display interface of the railway power supply scheduling monitoring system. The method can be used for visualizing the railway power supply scheduling monitoring information, can also be used for other railway information systems, and has better generalization capability.
Description
Technical Field
The invention relates to the technical field of railway power supply dispatching monitoring, in particular to a railway power supply dispatching cluster monitoring system visualization method based on column database reverse indexing.
Background
In recent years, visualization technology is rapidly developed, and compared with the method of drawing data into images for display, the images can more clearly and comprehensively express the characteristics and fluctuation trend of the data. At present, a database system can efficiently realize the recording, reading, statistics and the like of data, but when massive text data are directly presented to a user, the user can hardly directly read the information contained in the massive text data, and after the data are visually processed and drawn into a dynamic simple and understandable image, the information in the image can be more clearly expressed, so that the user experience is better.
The Scalable Vector Graphics (SVG) is a graphics format based on extensible markup language and used for describing two-dimensional Vector graphics, and can be well matched with a database for use. Although an SVG file is a picture, the position, shape and color of each primitive is written in code. The operation parameters of each electrical device can be stored in the railway power supply dispatching monitoring system database, 0 or 1 can also be directly used for representing the on-off of the switch device, and after the dispatching monitoring system reads the states of each element in the database, a railway power supply system live image in an SVG format can be directly drawn. When the operating parameters of the electrical equipment in the railway power supply dispatching monitoring data are inquired to be changed, the corresponding codes in the SVG files can be rewritten, the operating state of the electrical equipment can be displayed on the SVG pictures in real time, and the working state of the railway power supply system can be visually displayed.
However, with the continuous development of railway network scale in China, the intelligent monitoring level of a railway power supply system is improved, most important lines in the power supply system of the highway network are provided with the comprehensive dispatching and monitoring system originally used for monitoring four electric devices of a railway, and the number of measurement and control terminals in the railway power supply dispatching and monitoring system is increased dramatically. The train speed in the high-speed railway system is much higher than that of a common train, and the running state of the electrical equipment in the railway power supply system changes frequently and greatly, so that the sampling frequency of the monitoring data of the measurement and control terminals of the electrical equipment is increased, and the monitoring data stored in the database of the railway power supply dispatching monitoring system is exponentially increased. In the face of monitoring data information with greatly increased volume, if the state information of a device corresponding to a primitive in an SVG is queried by using a traditional query technology, the response speed is low, the SVG image is easy to jam, the real-time performance of monitoring interface display is influenced, important monitoring information is delayed or even lost when the SVG image is serious, and the safety of a railway system is threatened.
At present, the research methods for the mass data quick visual display problem of railway power supply monitoring are mainly divided into three categories: the first type is based on a distributed disk database technology, mass data are stored by forming a database by disks of different hosts, but the reading speed of the disks is limited, and quick visualization cannot be realized; the second type uses the memory database technology, and can perform quick reading because the data is stored in the memory, but the memory capacity is small, and a large amount of railway power supply scheduling comprehensive monitoring data is difficult to store; and the third type uses a data preprocessing technology to map data into a table and then converts query operation into MapReduce batch processing, but the MapReduce operation is slow to start and is difficult to meet the response requirement of quick display in a railway power supply scheduling monitoring system. With the rapid development of railway systems in China, the amount of monitoring data in the railway power supply dispatching monitoring system is increased dramatically, and the three existing methods cannot meet the requirement of rapid visual display of the railway power supply comprehensive dispatching monitoring mass data, so that the method poses great challenges for real-time online monitoring.
Disclosure of Invention
In order to solve the problems, the invention provides a novel visualization method of a railway power supply dispatching cluster monitoring system based on column database reverse indexing, and the method has a great engineering application value. The method comprises the steps of storing mass monitoring data in a railway power supply dispatching monitoring system by using a high-expansibility and low-cost non-relational column-type database HBase, designing a reverse index data structure in a database cluster, realizing quick request and response of any data item of the mass monitoring data, describing the state of railway power supply dispatching monitoring interface equipment by using SVG (scalable vector graphics) primitives, and displaying the running state of each electrical equipment in an electrical wiring diagram of the railway power supply dispatching monitoring system in a sub-second-level low-delay mode in real time.
In order to achieve the above purpose, the invention provides the following technical scheme:
a railway power supply dispatching cluster monitoring system visualization method based on column database reverse index comprises the following steps:
(1) distributed non-relational database HBase stored data
An HBase database is configured and installed in a Linux system computer cluster, and because the version and compatibility of each component of the database cluster need to be consistent and the situation of incompatibility is easy to occur, a CDH (CDH) platform integrating most HBase related components is selected for installation, the CDH version has good compatibility and is easy to install and operate, and the HBase database is the most widely used version in the current production environment.
(2) Generating a reverse index of railway power supply dispatch monitoring system data
And monitoring a pre-registered file of a railway power supply comprehensive scheduling monitoring system database through a replication mechanism of HBase, and generating a railway power supply scheduling monitoring system data reverse index. The HBase writes various updating requests received from the client into the pre-registered file, and then updates the data in the HBase database according to the records in the pre-registered file. Therefore, the same updating processing is carried out on the reverse index by monitoring the updating operation of all the monitoring data in the pre-registered file database of the railway power supply dispatching monitoring system database, so that the reverse index of the railway power supply dispatching monitoring system data and the data in the database are updated synchronously.
(3) Completing data item query operations based on inverted index
Designing a reverse index query architecture of the railway power supply scheduling monitoring system, and writing data: and writing the monitoring data into the railway power supply dispatching monitoring system, firstly writing the monitoring data information into an HBase database of a railway power supply dispatching monitoring system cluster, updating the monitoring data record of the HBase database, rewriting the written monitoring data information structure to generate a reverse index, and writing the reverse index into a reverse index database to complete index updating. When data is read: inputting data items to be searched in a scheduling client query interface of the railway power supply scheduling monitoring system, finding out a reverse index of corresponding data in a reverse index database according to the data items, and then reversely retrieving the corresponding data in an HBase database according to the obtained reverse index and returning the corresponding data to the query interface of the scheduling client.
(4) SVG (scalable vector graphics) primitive monitoring interface for railway power supply dispatching monitoring system
In the railway power supply dispatching monitoring system, program codes of SVG are loaded into java codes of the railway power supply dispatching monitoring system, and SVG files describing the basic state of the railway power supply system in a graphic primitive form are drawn. By designing data item query functions such as 'equipment number', 'monitoring time', 'station of the station', 'equipment object address', 'equipment description', 'action event', 'measurement value' and 'unit', when the running state of a certain power equipment in the railway power supply system changes, the corresponding SVG primitive can be rapidly triggered to refresh and display the changed state. According to different changes of the running state of the equipment, the attributes corresponding to the corresponding primitives in the SVG file are changed, so that the colors or description characters of the primitives are visualized, and the real-time running state of the railway power supply system is synchronously visualized and displayed.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. the invention provides a new visualization method of a railway power supply dispatching cluster monitoring system based on column database reverse indexing, which can meet the requirement of visual display of mass data of the railway power supply dispatching monitoring system in an image form.
2. The invention adopts the Linux system as the cluster system, has the advantages of high system safety and stability, can be standby for a long time, and meets the engineering application requirements of the railway power supply dispatching and monitoring system.
3. The distributed cluster HBase database used by the invention has the advantages of high expansibility and low cost, and a plurality of computers with lower performance can be used for forming a database cluster to easily store mass data records of the railway power supply dispatching monitoring system.
4. The reverse index technology in the method makes up the deficiency of the HBase database in supporting non-key value query, and can quickly and reversely retrieve corresponding data in the HBase database according to data items in any combination to provide a visual data source.
5. The technology designed by the invention can be used for inquiring railway power supply scheduling monitoring information, can also be used for other railway information systems, and has better generalization capability.
Drawings
Fig. 1 is a design example of a reverse index of a visualization method of a railway power supply dispatching cluster monitoring system based on a column database reverse index.
Fig. 2 is a construction process of a reverse index of the visualization method of the railway power supply dispatching cluster monitoring system based on the column database reverse index.
Fig. 3 is a monitoring flow of HBase database pre-registered files of the visualization method of the railway power supply dispatching cluster monitoring system based on column database reverse indexing of the present invention.
Fig. 4 is a process of performing reverse retrieval in a cluster of the visualization method of the railway power supply dispatching cluster monitoring system based on column database reverse indexing.
Fig. 5 is a data primitive refreshing thread and a visual display thread of a railway dispatching device executed concurrently according to the visual method of the railway power supply dispatching cluster monitoring system based on column database reverse indexing.
Detailed Description
The invention will be further described in detail with reference to an embodiment shown in the drawings.
Fig. 1 shows a reverse index design example of a visualization method for a railway power supply dispatching cluster monitoring system based on a column database reverse index according to the present invention. The railway power supply dispatching monitoring system stores massive monitoring data, if a forward index is generated according to a normal data recording structure, data item retrieval is carried out according to the inquired data items, and the efficiency is not high. The reverse index structure takes the data items in the monitoring data records as the core of the index file, consists of the data items and the positions of the data records, and reversely locates the positions of the data items and the data key values by the data items of the non-primary key values. The reverse index can be directly positioned according to the non-primary key value data items during query, and the data items are prevented from being searched in the forward index one by one. After the reverse index is generated by reconstructing the index structure, the railway power supply dispatching and monitoring system can quickly retrieve the position of the data record to which the railway power supply dispatching and monitoring system belongs according to the data item, so that the data record to be retrieved is quickly positioned.
Fig. 2 shows a construction process of a reverse index of the visualization method of the railway power supply dispatching cluster monitoring system based on the reverse index of the column database. The generation process of the reverse index is to construct a reverse index table according to a common monitoring data structure, firstly, the monitoring data in the railway power supply dispatching monitoring system database is analyzed, the common monitoring data is divided into separate data item forms, and then the reverse indexes of the data items of the same type are combined and sorted to form the reverse index table. The inverted index table is composed of individual data items and data item occurrence frequencies and locations.
Fig. 3 shows a monitoring process of the HBase database pre-registered file in the visualization method of the railway power supply dispatching cluster monitoring system based on the column database reverse index, and when the monitoring data in the pre-registered file is updated, the monitoring data is updated to the reverse index database synchronously. When the database receives a monitoring data updating operation instruction, a corresponding updating record is generated in the pre-registered file, the updating operation record in the pre-registered file is processed and analyzed after being monitored by the updating monitor, the updating record is packaged into the updating storage for temporary storage, when the stored updating operation record reaches a certain number or the monitoring data updating event is finished, the updating storage submits the data updating record to the updating actuator, and the updating actuator executes corresponding updating operation of the reverse index record in the reverse index database.
Fig. 4 shows a process of performing reverse retrieval in a cluster of the visualization method of the railway power supply dispatching cluster monitoring system based on column database reverse indexing.
Inputting data items of data to be searched in a scheduling host query interface, such as a terminal 343; and after receiving the query request, the cluster database distributes the query task to the reverse index database of each node of the cluster. The reverse index database retrieves the corresponding reverse index Id of 1-Rtu according to the data item terminal 343 and returns to the cluster database management node; and the management node sends a key value query task to each node HBase database of the cluster for searching according to the received key value Id:1 in the reverse index. And the database searches according to the received key value Id:1 to find corresponding data, and finishes reverse search and returns to the railway power supply monitoring cluster and the dispatching host.
Fig. 5 shows a data primitive refresh thread and a visualization display thread of a railway dispatching device, which are executed concurrently by the visualization method of the railway power supply dispatching cluster monitoring system based on the column database reverse index. Firstly, drawing an SVG document of a basic operation state of a railway power supply system, and leading the SVG document into an SVG canvas of a railway power supply dispatching monitoring system through a file address. And analyzing the graphics primitives in the SVG file by an SVG analyzer to obtain the information of the position, the filling, the labeling and the like of each graphics primitive. And then, sending a request to the monitoring data stored in the railway power supply dispatching monitoring system cluster database at regular time for inquiring data items, transmitting an inquiry result to the SVG primitive editor when the operation state of certain electrical equipment is inquired to be changed, updating the primitive attributes corresponding to the electrical equipment, and monitoring the operation state of the railway power supply system in real time in a railway power supply dispatching monitoring visual display interface.
Claims (5)
1. A railway power supply dispatching cluster monitoring system visualization method based on column database reverse index is characterized in that the specific processing method is as follows:
(1) distributed non-relational database HBase stored data
An HBase database is configured and installed in a Linux system computer cluster, and because the version and compatibility of each component of the database cluster need to be consistent, the situation of incompatibility is easy to occur, a CDH (CDH) platform integrating most HBase related components is selected for installation, the CDH version has good compatibility, is easy to install and operate, and is the most widely used version in the current production environment;
(2) generating a reverse index of railway power supply dispatch monitoring system data
Monitoring a pre-registered file of a railway power supply comprehensive dispatching monitoring system database through an HBase copying mechanism to generate a railway power supply dispatching monitoring system data reverse index, wherein the HBase writes various updating requests received from a client into the pre-registered file, and then performs updating operation on data in the HBase database according to records in the pre-registered file, so that the same updating processing is performed on the reverse index by monitoring the updating operation of all monitoring data in the pre-registered file database of the railway power supply dispatching monitoring system database, and the railway power supply dispatching monitoring system data reverse index and the data in the database are synchronously updated;
(3) performing reverse search operation based on reverse index
Designing a reverse index query architecture of the railway power supply scheduling monitoring system, and writing data: the monitoring data is written into the railway power supply dispatching monitoring system, firstly, monitoring data information is written into an HBase database of a railway power supply dispatching monitoring system cluster, monitoring data records of the HBase database are updated, meanwhile, written monitoring data information structures are rewritten to generate a reverse index, the written monitoring data information structures are written into the reverse index database to complete index updating, and when data are read: inputting data items to be searched in a scheduling client query interface of a railway power supply scheduling monitoring system, finding out a reverse index of corresponding data in a reverse index database according to the data items, and then reversely retrieving the corresponding data in an HBase database according to the obtained reverse index to return to the query interface of the scheduling client;
(4) SVG visualization of monitoring interface for completing railway power supply dispatching
In the railway power supply dispatching monitoring system, program codes of SVG are loaded into java codes of the railway power supply dispatching monitoring system, SVG files describing the basic state of the railway power supply system in a primitive form are drawn, data item query functions of 'equipment number', 'monitoring time', 'station of the station' belonging to the railway ',' equipment object address ',' equipment description ',' action event ', measured value' and 'unit' are designed, when the running state of certain power equipment in the railway power supply system changes, corresponding SVG primitives can be rapidly triggered, the changed state is refreshed and displayed, according to the difference of the running state changes of the equipment, attributes corresponding to the corresponding primitives in the SVG files can be changed, the colors or description characters of the primitives are visualized, and the real-time running state of the railway power supply system is synchronously visualized and displayed.
2. The visualization method for the railway power supply dispatching cluster monitoring system based on the column database reverse index as claimed in claim 1, wherein in the step 1, the HBase database of the CDH version and other cluster components are installed in a Linux operating system, so that the compatibility is high, and the storage and processing of the railway power supply dispatching monitoring data are easier to operate.
3. The railway power supply dispatching cluster monitoring system visualization method based on column database reverse indexing as claimed in claim 1, characterized in that in the step 2, a reverse index of the railway power supply dispatching monitoring system data is generated through a replication mechanism of HBase, a pre-registered file of a railway power supply dispatching monitoring system database is monitored, updating the reverse index in the reverse index database according to various data updating request records received from the client in the pre-registered file, so that the reverse index of the railway power supply dispatching monitoring system data and the monitoring data in the database are updated synchronously, compared with the mode of updating the reverse index by using a coprocessor, the method for updating the index by using the coprocessor brings invasive codes to HBase and influences the working efficiency of an HBase cluster, and the replication mechanism has little aggression to the use of the HBase cluster and has no influence on the working efficiency of the database.
4. The visualization method for the railway power supply dispatching cluster monitoring system based on the column database reverse index as claimed in claim 1, wherein a reverse retrieval architecture of the railway power supply dispatching monitoring system is designed in the step 3, the key values of the searched data items are quickly located through non-primary key value query, and then the data needed by the dispatching host are queried through the key values, so that the reverse retrieval and the quick query of the non-primary key value data items in the railway power supply dispatching monitoring system database cluster are realized.
5. The visualization method for the railway power supply dispatching cluster monitoring system based on the column database reverse index as claimed in claim 1, wherein in the step 4, a railway power supply dispatching monitoring interface SVG visualization is designed, changes of the operating states of the electrical devices in the railway power supply dispatching monitoring interface are displayed in an SVG graph in the dispatching monitoring interface, attributes such as 'colors', 'labels' and 'positions' of corresponding primitives of the electrical devices are updated according to data item query of monitoring data, and the operating states of the electrical devices are displayed in an electrical wiring graph of the railway power supply dispatching monitoring system in a sub-second low-delay manner in real time.
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| US20130332484A1 (en) * | 2012-06-06 | 2013-12-12 | Rackspace Us, Inc. | Data Management and Indexing Across a Distributed Database |
| CN103500173A (en) * | 2013-09-03 | 2014-01-08 | 北京泰乐德信息技术有限公司 | Method for inquiring rail transit monitoring data |
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Application publication date: 20200214 |