CN113492890B - Central control system data acquisition and storage method and central control system - Google Patents
Central control system data acquisition and storage method and central control system Download PDFInfo
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- CN113492890B CN113492890B CN202010265561.XA CN202010265561A CN113492890B CN 113492890 B CN113492890 B CN 113492890B CN 202010265561 A CN202010265561 A CN 202010265561A CN 113492890 B CN113492890 B CN 113492890B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or vehicle train for signalling purposes ; On-board control or communication systems
- B61L15/0018—Communication with or on the vehicle or vehicle train
- B61L15/0027—Radio-based, e.g. using GSM-R
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or vehicle train for signalling purposes ; On-board control or communication systems
- B61L15/0072—On-board train data handling
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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
- G06F16/21—Design, administration or maintenance of databases
- G06F16/215—Improving data quality; Data cleansing, e.g. de-duplication, removing invalid entries or correcting typographical errors
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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
- G06F16/24—Querying
- G06F16/245—Query processing
- G06F16/2455—Query execution
- G06F16/24552—Database cache management
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/54—Interprogram communication
- G06F9/544—Buffers; Shared memory; Pipes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/04—Protocols for data compression, e.g. ROHC
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/161—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
- H04L69/162—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields involving adaptations of sockets based mechanisms
Abstract
The invention provides a data high-speed acquisition and storage method of a central control system of a superconducting magnetic levitation train and the central control system of the superconducting magnetic levitation train, wherein the data high-speed acquisition and storage method of the central control system of the superconducting magnetic levitation train comprises the following steps: the sub-equipment of the superconducting maglev train sends an original data packet to a central control system of the superconducting maglev train through an Ethernet card so as to complete data high-speed acquisition; the central control system stores all the collected original data packets into a data packet queue buffer pool so as to respectively time sequence the data in all the original data packets; the central control system respectively performs compression coding on each data packet which is arranged in time sequence and stores the data packets into a data storage buffer pool; the central control system stores each data packet in the data storage buffer pool to complete high-speed storage of the data. By applying the technical scheme of the invention, the technical problems of high-speed data storage cost and low storage efficiency in the prior art can be solved.
Description
Technical Field
The invention relates to the technical field of data storage, in particular to a data high-speed acquisition and storage method of a central control system of a superconducting magnetic levitation train and the central control system of the superconducting magnetic levitation train.
Background
For the ultra-high speed superconducting magnetic levitation train central control system with the speed per hour reaching 1000km/h, a data acquisition platform is vital, on-line diagnosis and data analysis are carried out on the train through data, a large amount of data information is generated when each subsystem operates, and the control period is short, so that the data acquisition frequency is high, and the data generated during storage and transportation needs to be stored by a high-speed reliable storage technology. However, in the prior art, a high-speed acquisition board is mostly adopted to store data, the data is generally cached and stored by the acquisition board and then transferred to a data bureau, the high-speed acquisition board is expensive, so that the data storage cost is too high, and the data storage efficiency is low due to the large data quantity required to be stored in the storage mode.
Disclosure of Invention
The invention provides a data high-speed acquisition and storage method of a central control system of a superconducting magnetic levitation train and the central control system of the superconducting magnetic levitation train, which can solve the technical problems of overhigh high-speed data storage cost and low storage efficiency in the prior art.
According to one aspect of the invention, a data high-speed acquisition and storage method of a central control system of a superconducting magnetic levitation train is provided, and the data high-speed acquisition and storage method of the central control system of the superconducting magnetic levitation train comprises the following steps: the sub-equipment of the superconducting maglev train sends an original data packet to a central control system of the superconducting maglev train through an Ethernet card so as to complete data high-speed acquisition; the central control system stores all the collected original data packets into a data packet queue buffer pool so as to respectively time sequence the data in all the original data packets; the central control system respectively performs compression coding on each data packet which is arranged in time sequence and stores the data packets into a data storage buffer pool; the central control system stores each data packet in the data storage buffer pool to complete high-speed storage of the data.
Further, the compression encoding of the time-ordered data packets by the central control system specifically includes: recording a time stamp of first data in a current data packet and a data sampling period in the current data packet; sequentially judging the repetition times of each data in the current data packet according to the time sequence, and if the repetition times of any data are greater than a set threshold value, carrying out compression coding recording on the data; if the repetition number of any data is smaller than or equal to the set threshold value, the data is directly repeatedly recorded until the compression coding of all the data in the current data packet is completed.
Further, if the repetition number of any data is greater than the set threshold, the compression encoding recording of the data specifically includes: the data is compression encoded in a "XnX" format, where X represents the data and n represents the number of repetitions of the data.
Further, the threshold value is set to 4 times.
Further, after the data in each original data packet are respectively time-sequence arranged, the method for collecting and storing the data of the central control system of the superconducting magnetic levitation train at high speed further comprises the following steps: the central control system cleans the data in each data packet which is arranged in time sequence respectively so as to improve the data integrity.
Further, the central control system cleans the data in each data packet which is arranged in time sequence specifically includes: the central control system removes invalid data in each data packet by using a data filtering method, and supplements the data by using a curve interpolation method to finish data cleaning of each data packet so as to improve data integrity.
Further, the sub-equipment of the superconducting maglev train adopts a TCP/IP protocol to send an original data packet to a central control system of the superconducting maglev train through an Ethernet card.
Further, the central control system adopts a multithreading technology to store and process each data packet in the data storage buffer pool in batches.
Further, a switch is adopted between the central control system and the sub-equipment for data interaction.
According to another aspect of the invention, a central control system of a superconducting magnetic levitation train is provided, and the central control system of the superconducting magnetic levitation train adopts the data high-speed acquisition and storage method of the central control system of the superconducting magnetic levitation train to acquire and store data at a high speed.
By applying the technical scheme of the invention, the data high-speed acquisition and storage method of the central control system of the superconducting magnetic levitation train and the central control system of the superconducting magnetic levitation train are provided, the data high-speed acquisition and storage method of the central control system of the superconducting magnetic levitation train is used for carrying out data high-speed acquisition through an Ethernet card, and carrying out time sequence arrangement and compression coding on the data in sequence to carry out data high-speed storage, and the data acquisition and storage method can realize microsecond-level high-speed acquisition and storage of the data. Compared with the prior art, the technical scheme of the invention can solve the technical problems of high-speed data storage cost and low storage efficiency in the prior art.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. It is evident that the drawings in the following description are only some embodiments of the present invention and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a schematic diagram of a method for high-speed data collection and storage of a central control system according to an embodiment of the present invention;
fig. 2 shows a schematic diagram of a central control system device connection according to an embodiment of the present invention.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
As shown in fig. 1 to 2, according to a specific embodiment of the present invention, there is provided a data high-speed acquisition and storage method of a central control system of a superconducting magnetic levitation train, the data high-speed acquisition and storage method of the central control system of the superconducting magnetic levitation train including: the sub-equipment of the superconducting maglev train sends an original data packet to a central control system of the superconducting maglev train through an Ethernet card so as to complete data high-speed acquisition; the central control system stores all the collected original data packets into a data packet queue buffer pool so as to respectively time sequence the data in all the original data packets; the central control system respectively performs compression coding on each data packet which is arranged in time sequence and stores the data packets into a data storage buffer pool; the central control system stores each data packet in the data storage buffer pool to complete high-speed storage of the data.
By applying the configuration mode, the data high-speed acquisition and storage method of the central control system of the superconducting magnetic levitation train is provided, the data high-speed acquisition and storage method of the central control system of the superconducting magnetic levitation train is used for carrying out data high-speed acquisition through an Ethernet card, and carrying out time sequence arrangement and compression coding on the data in sequence to carry out data high-speed storage, and the data acquisition and storage method can realize microsecond-level high-speed acquisition and storage of the data. Compared with the prior art, the technical scheme of the invention can solve the technical problems of high-speed data storage cost and low storage efficiency in the prior art.
Furthermore, in order to realize the high-speed data acquisition and storage of the central control system of the superconducting maglev train, the invention firstly transmits an original data packet to the central control system of the superconducting maglev train through the Ethernet card by the sub-equipment of the superconducting maglev train so as to complete the high-speed data acquisition.
As a specific embodiment of the invention, the sub-equipment of the superconducting maglev train can adopt TCP/IP protocol to send the original data packet to the central control system of the superconducting maglev train through the Ethernet card. The sub-equipment can actively initiate connection to the central control system, and reliable communication of data is realized through a TCP/IP mode. In addition, the central control system and the sub-equipment can adopt a switch to conduct data interaction, and the sub-equipment can send an original data packet to the central control system through a Socket interface. The Ethernet cards in the central control system and the sub-equipment can be common Ethernet cards, such as TP-Link TG3269, so that the cost of data acquisition and transmission can be further reduced. As shown in fig. 2, the central control system may be connected to four separate devices.
In addition, in the invention, after the central control system completes the high-speed data acquisition through the Ethernet card, the central control system stores each acquired original data packet into the data packet queue buffer pool so as to respectively time sequence the data in each original data packet. By the method, the overflow of the Ethernet card cache data can be effectively prevented, and the data can be arranged in time sequence in a queue buffer pool mode.
Further, in the present invention, after the time sequence arrangement is completed on the data in each original data packet, the central control system cleans the data in each data packet after the time sequence arrangement to improve the data integrity. The central control system takes out data from the data packet queue buffer pool packet by packet, and cleans the data respectively, so that the data integrity can be improved, and the data reliability can be further improved.
As one embodiment of the present invention, the central control system cleans the data in each of the data packets arranged in time sequence, respectively, specifically including: the central control system removes invalid data in each data packet by using a data filtering method, and supplements the data by using a curve interpolation method to finish data cleaning of each data packet so as to improve data integrity.
In the present invention, the central control system performs compression encoding on each of the time-series-arranged data packets and stores the data in the data storage buffer. The data reliability can be improved through the double-cache design. When the data is not compressed, the data storage quantity is large, so that the data cannot be stored in the database in time, and the data loss is caused by the fact that the buffer memory is full. The data volume can be reduced by compression coding, and the data storage efficiency is further improved.
As an embodiment of the present invention, the compression encoding of the time-ordered data packets by the central control system specifically includes: recording a time stamp of first data in a current data packet and a data sampling period in the current data packet; sequentially judging the repetition times of each data in the current data packet according to the time sequence, and if the repetition times of any data are greater than a set threshold value, carrying out compression coding recording on the data; if the repetition number of any data is smaller than or equal to the set threshold value, the data is directly repeatedly recorded until the compression coding of all the data in the current data packet is completed. In this embodiment, if any of the data repetition numbers is greater than the set threshold, the compression encoding recording of the data specifically includes: the data is compression encoded in a "XnX" format, where X represents the data and n represents the number of repetitions of the data. In the present invention, the set threshold value may be set as needed, for example, 4 times.
As an embodiment of the present invention, each data packet before compression encoding includes a corresponding time stamp, and in continuous fast acquisition, the data packet before compression encoding may be exemplified as: time stamp data a time stamp data B time stamp data C time stamp data D. The compression coding method can be converted into corresponding storage data packets by adopting the compression coding method: the time stamp sampling period data a data B data C repeat data number data C data D. Therefore, the compression coding method of the invention utilizes data compression and data time stamp design, reduces data volume and improves data storage efficiency.
Further, in the present invention, after the data compression encoding is completed and stored in the data storage buffer pool, the central control system stores each data packet in the data storage buffer pool to complete the high-speed storage of the data. As a specific embodiment of the invention, the central control system adopts a multithreading technology to carry out batch storage processing on each data packet in the data storage buffer pool.
According to another aspect of the invention, a central control system of a superconducting magnetic levitation train is provided, and the central control system of the superconducting magnetic levitation train adopts the data high-speed acquisition and storage method of the central control system of the superconducting magnetic levitation train to acquire and store data at a high speed.
By applying the configuration mode, the data high-speed acquisition and storage method of the central control system of the superconducting maglev train can reduce the high-speed data storage cost and improve the high-speed data storage efficiency. Therefore, the data high-speed acquisition and storage method of the central control system of the superconducting magnetic levitation train is applied to the central control system of the superconducting magnetic levitation train, and the working performance of the central control system of the superconducting magnetic levitation train can be greatly improved.
For further understanding of the present invention, the following describes in detail the method for data collection and storage of the central control system of the superconducting magnetic levitation train according to the present invention with reference to fig. 1 and 2.
As shown in fig. 1 and 2, according to an embodiment of the present invention, there is provided a method for collecting and storing data of a central control system of a superconducting magnetic levitation train at a high speed, the method comprising the steps of.
Step one, the sub-equipment of the superconducting maglev train sends an original data packet to a central control system of the superconducting maglev train through an Ethernet card so as to complete data high-speed acquisition.
And step two, the central control system stores all the collected original data packets into a data packet queue buffer pool so as to respectively perform time sequence arrangement on the data in all the original data packets.
And thirdly, removing invalid data by the central control system through a data filtering method on the data in each data packet which is arranged in time sequence, and respectively supplementing the data through a curve interpolation method to finish data cleaning of each data packet so as to improve data integrity.
And step four, the central control system respectively performs compression coding on all the cleaned data packets and stores the data packets into a data storage buffer pool.
And fifthly, the central control system stores each data packet in the data storage buffer pool so as to finish high-speed storage of the data.
In summary, the invention provides a data high-speed acquisition and storage method of a central control system of a superconducting magnetic levitation train and the central control system of the superconducting magnetic levitation train, wherein the data high-speed acquisition and storage method of the central control system of the superconducting magnetic levitation train is used for acquiring data through an Ethernet card and storing the data at a high speed by sequentially carrying out time sequence arrangement and compression coding on the data, and the data acquisition and storage method can realize microsecond high-speed acquisition and storage of the data. Compared with the prior art, the technical scheme of the invention can solve the technical problems of high-speed data storage cost and low storage efficiency in the prior art.
In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The data high-speed acquisition and storage method for the central control system of the superconducting magnetic levitation train is characterized by comprising the following steps of:
the sub-equipment of the superconducting maglev train sends an original data packet to a central control system of the superconducting maglev train through an Ethernet card so as to complete data high-speed acquisition;
the central control system stores the collected original data packets into a data packet queue buffer pool so as to respectively perform time sequence arrangement on the data in the original data packets;
the central control system respectively performs compression coding on each data packet which is arranged in time sequence and stores the data packets into a data storage buffer pool; the central control system performs compression coding on the data packets which are arranged in time sequence specifically comprises the following steps: recording a time stamp of first data in a current data packet and a data sampling period in the current data packet; sequentially judging the repetition times of each data in the current data packet according to a time sequence, and if the repetition times of any data are larger than a set threshold value, carrying out compression coding recording on the data according to a XnX format, wherein X represents the data, and n represents the repetition times of the data; if any data repetition number is smaller than or equal to the set threshold value, directly repeatedly recording the data until compression coding is completed on all data in the current data packet;
the central control system stores each data packet in the data storage buffer pool to finish high-speed storage of data.
2. The method for high-speed data acquisition and storage of the central control system of the superconducting maglev train according to claim 1, wherein the set threshold value is 4 times.
3. The method for high-speed data collection and storage of a central control system of a superconducting magnetic levitation train according to claim 1, wherein after the data in each of the original data packets are respectively time-sequentially arranged, the method for high-speed data collection and storage of a superconducting magnetic levitation train further comprises: the central control system cleans the data in each data packet which is arranged in time sequence respectively so as to improve the data integrity.
4. A method for high-speed data collection and storage of a central control system of a superconducting magnetic levitation train according to claim 3, wherein the method for cleaning the data in each data packet arranged in time sequence by the central control system comprises the following steps: and the central control system removes invalid data in each data packet respectively by using a data filtering method, and supplements the data respectively by using a curve interpolation method so as to finish data cleaning of each data packet and improve data integrity.
5. The method for collecting and storing data of the central control system of the superconducting magnetic levitation train at a high speed according to any one of claims 1 to 4, wherein the sub-equipment of the superconducting magnetic levitation train transmits the original data packet to the central control system of the superconducting magnetic levitation train through the ethernet card by adopting a TCP/IP protocol.
6. The method for high-speed data acquisition and storage of the central control system of the superconducting maglev train according to claim 1, wherein the central control system performs batch storage processing on each data packet in the data storage buffer pool by adopting a multithreading technology.
7. The method for collecting and storing data of the central control system of the superconducting magnetic levitation train at high speed according to claim 1, wherein a switch is adopted between the central control system and the sub-equipment for data interaction.
8. A central control system of a superconducting magnetic levitation train, wherein the central control system of the superconducting magnetic levitation train adopts the data high-speed acquisition and storage method of the central control system of the superconducting magnetic levitation train as claimed in any one of claims 1 to 7 to acquire and store data at high speed.
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