CN112152699A - Data combining and distributing processing system - Google Patents
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- CN112152699A CN112152699A CN202011045247.7A CN202011045247A CN112152699A CN 112152699 A CN112152699 A CN 112152699A CN 202011045247 A CN202011045247 A CN 202011045247A CN 112152699 A CN112152699 A CN 112152699A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18517—Transmission equipment in earth stations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/27—Arrangements for networking
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18519—Operations control, administration or maintenance
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
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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
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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
- H04L67/2866—Architectures; Arrangements
- H04L67/30—Profiles
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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
Abstract
The invention provides a data combining and distributing processing system, which receives load data of a universal data transmission server through an optical fiber network, analyzes the format of the load data, combines the load data, stores the data, plays back the data, inquires error codes, positions error information and the like, classifies the load data and distributes the load data in real time. And after the load data are classified, distributing the load data to load terminal equipment in real time through an optical fiber network. The method can simultaneously process 2 paths of high-speed data, and the real-time processing, storage and network distribution rate of each path can reach 3 Gbps. The method can remarkably improve the load data processing speed of the data transmission system and monitor the working correctness and matching of the satellite-ground transmission channel of the data transmission subsystem in real time.
Description
Technical Field
The invention relates to a data combining and distributing processing system.
Background
With the continuous improvement of the resolution of the satellite payload, the original data acquired at the same time is multiplied, the information transmission rate of the satellite-ground link is faster and faster, the data volume needing to be processed in real time is greatly increased, and the load is brought to the ground data processing system. These put higher demands on satellite-borne ground data processing technology.
Disclosure of Invention
The invention aims to provide a data combining and distributing processing system.
In order to solve the above problem, the present invention provides a data combining and distributing processing system, which includes:
the data combining and distributing processing system is used for receiving load data communicated by the universal data transmission server, performing format analysis, combining processing, data storage, data playback, error code query and exception prompt on the load data, classifying the load data, and distributing the load data to load terminal equipment in real time through an optical fiber network.
Further, in the above system, the universal data transfer server is configured to receive and process raw load data.
Further, in the system, the real-time distribution conforms to a gigabit optical network protocol of a TCP/IP protocol, 2 paths of high-speed data are processed simultaneously, and the real-time processing, storage and network distribution rate of each path reaches 3 Gbps.
Further, in the above system, the data combining and distributing processing system is located between the general data transmission server and the load terminal device, and when the load terminal device logs in the data combining and distributing processing system, the data combining and distributing processing system is configured to automatically log in the general data transmission server, apply for data according to a preset format, establish channel connection, and when a network is in an abnormal state, the channel application fails, and the data combining and distributing processing system automatically applies for data according to the preset format again until the connection of all channels is completed.
Further, in the above system, the data combining and distributing processing system is configured to manually apply for data from the universal data transmission server when no load terminal device applies for data.
Further, in the above system, the payload data has two data links, one of the data links is a fixed 1-way data link, the other data link is a fixed 2-way data link, the two data links receive and process link data in real time and store the link data in the disk arrays in real time, and the link data of the two data links are stored in the two disk arrays respectively.
Further, in the above system, each data link has two modes, which are a single-path mode and a two-path mode, respectively, wherein parity frame combining processing of data is performed through a virtual channel joint identifier of link data in the two-path mode, and the parity frame combining processing is combined into complete payload data.
Further, in the system, each link data has 4 types of payload data, the payload data is classified and processed through the virtual channel joint identifier, and the data is distributed to the payload terminal device or the analog payload terminal device.
Further, in the system, the data combining and distributing processing system is configured to perform error code comparison on the classified load data, locate error information, perform statistical recording on error information of discontinuous frames, lost frames and unknown frame headers, automatically locate a segment of the error data from the stored load data according to the statistical recording, and analyze the load data.
Further, in the above system, the data combining and distributing processing system is configured to play back the locally stored data file according to different code rates and extract the content of the load data area of the local data without connecting to the universal data transfer server.
Compared with the prior art, the method receives the load data of the universal data transmission server through the optical fiber network, analyzes the format of the load data, combines the load data, stores the data, plays back the data, inquires error codes, positions error information and the like, classifies the load data and distributes the load data in real time. And after the load data are classified, distributing the load data to load terminal equipment in real time through an optical fiber network. The method can simultaneously process 2 paths of high-speed data, and the real-time processing, storage and network distribution rate of each path can reach 3 Gbps. The method can remarkably improve the load data processing speed of the data transmission system and monitor the working correctness and matching of the satellite-ground transmission channel of the data transmission subsystem in real time.
Drawings
Fig. 1 is a block diagram of a data combining and distributing processing system according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1, the present invention provides a data combining and distributing processing system, which is configured to receive load data communicated by a universal data transmission server, perform format analysis, combining processing, data storage, data playback, error code query and exception prompt on the load data, classify the load data, and distribute the load data to load terminal devices in real time through an optical fiber network.
The method is used for detecting the working accuracy and matching of the satellite-ground transmission channel of the data transmission subsystem.
In an embodiment of the data combining, distributing and processing system of the present invention, the general data transmission server is configured to receive and process original load data.
In an embodiment of the data combining, distributing and processing system, the real-time distribution conforms to a gigabit optical network protocol of a TCP/IP protocol, and simultaneously processes 2 paths of high-speed data, and the real-time processing, storage and network distribution rate of each path reaches 3 Gbps.
In an embodiment of the data combining and distributing processing system of the present invention, the data combining and distributing processing system is located between the general data transmission server and the load terminal device, and when the load terminal device logs in the data combining and distributing processing system, the data combining and distributing processing system is configured to automatically log in the general data transmission server, and simultaneously apply for data according to a preset format to establish a channel connection, and when a network is in an abnormal state, the channel application fails, and the data combining and distributing processing system automatically applies for data according to the preset format again until the connection of all channels is completed.
In an embodiment of the data combining and distributing processing system of the present invention, the data combining and distributing processing system is configured to manually apply for data from the universal data transmission server when no load terminal device applies for data.
When a load terminal logs in the system, the system is automatically connected with a general data transmission server and works in a real-time mode; when the non-load terminal logs in the system, the non-load terminal can manually apply for data from the general data transmission server, or extract and play back local data.
In an embodiment of the data combining, distributing and processing system of the present invention, the load data has two data links, one of the data links is a fixed 1-way data link, the other data link is a fixed 2-way data link, the two data links receive and process link data in real time and store the link data to the disk arrays in real time, and the link data of the two data links are stored in the two disk arrays respectively.
In the real-time data transmission mode, the system receives and processes two link data (fixed 1-way and fixed 2-way), and stores the two link data in two disk arrays respectively. And combining the data of the 1-path solid storage and the data of the 2-path solid storage, analyzing the combined data, separating the load data of SAR 1-SAR 8, and distributing the load data to load terminal equipment.
In an embodiment of the data combining and distributing processing system, each data link has two modes, namely a single-path mode and a two-path mode, wherein parity frame combining processing of data is performed through a virtual channel combination identifier of link data in the two-path mode, and the parity frame combining processing is combined into complete load data.
In an embodiment of the data combining and distributing processing system, each link data has 4 types of load data, the load data is classified and processed through the virtual channel joint identifier, and the data is distributed to the load terminal equipment or the simulation load terminal equipment.
In an embodiment of the data combining and distributing processing system of the present invention, the data combining and distributing processing system is configured to perform error code comparison on the classified load data, locate error information, perform statistical recording on error information of discontinuous frames, lost frames and unknown frame headers, automatically locate a segment of the error data from the stored load data according to the statistical recording, and analyze the load data.
In an embodiment of the data combining and distributing processing system of the present invention, the data combining and distributing processing system is configured to play back a locally stored data file according to different code rates and extract the content of a load data area of local data without connecting to the universal data transfer server.
The invention receives the load data of the universal data transmission server through the optical fiber network, analyzes the load data format, combines the processing, stores the data, plays back the data, inquires the error code, positions the error information and the like, classifies the load data and distributes the load data in real time. And after the load data are classified, distributing the load data to load terminal equipment in real time through an optical fiber network. The method can simultaneously process 2 paths of high-speed data, and the real-time processing, storage and network distribution rate of each path can reach 3 Gbps. The method can remarkably improve the load data processing speed of the data transmission system and monitor the working correctness and matching of the satellite-ground transmission channel of the data transmission subsystem in real time.
The invention mainly aims to research a combination distribution method of load data, and is a key part in a satellite-borne ground data processing technology. The traditional satellite-borne ground data processing speed is not ideal enough, the dependence degree on hardware is high, and special equipment is needed to complete core algorithms such as data combination and distribution. The invention can process 2 paths of high-speed data at the same time, each path of high-speed data can be processed, stored and distributed at the speed of 3Gbps in real time, and the load data processing speed of the data transmission system can be obviously improved. Compared with the traditional satellite-borne ground data processing technology, the method has the advantages that the main functions are realized by software, the dependence degree on hardware equipment is low, and the expansion is easy.
Specifically, the core of the system of the invention is system software which is mainly divided into three layers, namely an equipment driving layer, a data processing layer and a human-computer interaction layer, as shown in fig. 1. The functional modules in and among the module layers are encapsulated, the coupling is low, and the improved modification of the power efficiency in each layer does not affect other layer modules.
The system software adopts a module design method, which comprises a data source acquisition module, a data analysis module, a data comparison module, a data distribution module, a configuration file management module, a log management module, a data storage management module and an interface management module. Although the 9 software modules are relatively independent in logic function, the 9 software modules cooperate with each other to jointly complete various functions required by the whole software system, and the functions of the modules are shown in a table.
The system has three modes, namely a real-time terminal receiving mode, a real-time comparison mode and a playback mode. When the system is used, the system software carrier server is started firstly to ensure the normal work of the system, and the system software is opened to enter the integral display interface of the system. And selecting the working mode, and carrying out corresponding operation under different working modes.
(1) Real-time terminal reception mode
a. Configuring a network: setting the IP and port numbers of the data transmission servers of the fixed storages 1 and 2, binding the IP address of the local machine, setting information needing login and applying data, such as a user name, a password, a satellite model and the like, and VCID information of the fixed storages 1 and 2.
b. And setting the IP and the port of the load terminal subscription machine, and marking the front of the load type needing to be subscribed simultaneously and filling the serial number of the VICD of the load type.
c. And selecting the load types, wherein if 8 load types are selected, the load terminal needs to subscribe the 8 load types at the same time, and the system software subscribes the data transmission server to process the data frames.
d. The real transfer mode (real transfer/playback), the terminal transfer mode, the log storage path, and the data transfer storage paths of the solid storages 1 and 2 are selected.
e. After the setting is finished, clicking the system to start, enabling the system software to enter a ready state, and waiting for the load terminal to be connected. And after the load terminal is successfully connected, the system software automatically connects the data transmission server, receives the data, processes the data and transmits the load data to the load terminal.
(2) Real-time comparison mode
After the click system is started, the system software does not wait for the subscription of the load terminal, directly subscribes the solid data of the data transmission server, and processes, compares and stores the error rate. Under the condition of no load terminal, after data of the data transmission server is received in real time, error rate comparison and storage are automatically carried out, and network transmission is not carried out any more.
(3) Playback mode
And selecting playback and comparison on a data transmission control interface, selecting data positions of the solid memory 1 and the solid memory 2 in playback parameters, and after clicking the system to start, automatically reading and processing the solid memory data and storing the load data by system software. The playback mode is only used for playing back the stored solid file, then the solid file is interpreted and the load data is split and stored, and the load terminal is not subscribed.
The system is based on mature optical fiber network technology and TCP/IP protocol. The development platform adopts QT5.9 and VS2013, and C + + language as support. The core of the invention is system software which runs on a local server, and the server needs to be configured with an optical fiber network port, a large-capacity hard disk, an array card and the like.
The system is located between the general data transmission server and the load terminal. When a loaded terminal logs in the system, the system automatically logs in the general data transmission server through a TCP/IP protocol, and simultaneously applies for data transmission according to a certain format to establish channel connection. And in the abnormal state of the network, the channel application fails, and the system automatically applies for data again until the connection of all the channels is completed. After the channel is established, data are received from the universal data transmission server, then, an original data set is stored locally for later data playback, then, the data are combined, the combined data are analyzed according to the format of the frame, then, the load types are classified, and the load data of SAR 1-SAR 8 are separated. The generated load data can be selectively compared. And finally, the data subscription server distributes the data in the corresponding load data buffer area to the client according to the request of the subscription client. When the non-load end logs in the system, the system can play back the locally stored data file according to different code rates and extract the load data area content of the local data.
The payload data has two links (fixed 1-way and fixed 2-way), and the real-time received data is respectively stored on the two disk arrays. Each data link has two modes, a one-way mode and a two-way mode. And performing parity frame combination processing on the data through the virtual channel joint identification of the link data in a two-way mode, and combining the data into complete load data. Each link data has 4 types of load data, the load data is classified and processed through identification, the load data of SAR 1-SAR 8 is separated, and the data are distributed to load terminals or analog load terminals.
The system carries out error code comparison on the classified load data, positions error information, carries out statistical recording on the error information such as discontinuity, frame loss, unknown frame head and the like, and can automatically position the segment of the error data from the stored load data according to the record and analyze the data.
The system consists of three modules, namely an equipment driving layer, a data processing layer and a human-computer interaction layer, as shown in figure 1. The device driving layer is positioned in the core layer of the operating system and is responsible for receiving and transmitting network data in the software system. The data processing layer is an intermediate layer and is responsible for communication with the equipment driving layer and receiving, sending and data transmission of control commands of the man-machine interaction layer. Receiving network data, combining two paths of fixed data, decoding formats, comparing each load data, storing and managing data, managing log state, distributing load data network, and the like. The human-computer interaction layer is positioned at the uppermost layer and is mainly responsible for local software control, data processing state display, general data transmission server connection state display, data subscription source state display, error information display, user configuration parameter input and the like.
The system adopts a module design method and mainly comprises a data source acquisition module, a data analysis module, a data comparison module, a data distribution module, a configuration file management module, a log management module, a data storage management module and an interface management module. Although the 9 software modules are relatively independent in logic function, the 9 software modules cooperate with each other to jointly complete various functions required by the whole software system.
The data source acquisition module is responsible for acquiring the data and the playback data of the universal data transmission server, storing the received load data, providing the data for the data analysis module and being called by the data analysis module. The embodiment and the general data transmission server are communicated through TCP/IP in three steps. In the first step, the client serving as the TCP is connected with the data transmission server through the IP and the port number, after receiving the connection success message of the TCP, the second step sends login request information to the data transmission server, and the server returns confirmation information to the client. Finally, the embodiment sends the data information of the application load to the data transmission server. And after receiving the application information, the data transmission server sends load data to the embodiment according to the applied data information.
And the data analysis module processes the received load data, including frame synchronization, solid data combination, data frame format solution, SAR load data separation and the like. After receiving the load data, firstly synchronizing the synchronization head, putting the complete frame into the corresponding buffer, then merging the data of the solid memory 1 and the solid memory 2, and merging according to the sequence of frame counting. The merged data is analyzed and interpreted according to the format, for example, the virtual channel joint identification is interpreted according to the continuity of frame counting, the merged data is classified into SAR 1-SAR 8 according to the load type, and the data in each load is sorted according to the frame counting in the classifying process.
And the data comparison module is used for completing the work of comparing each load data with the codebook. Comparing the load data after format resolution and classification processing byte by byte according to the pre-configured codebook data, and reporting the error code phenomenon in the comparison process, wherein the reported content comprises the wrong load type, the frame count where the error is located and the number of bytes of the frame, and the number of bytes of the error is given. And stored in the database. The data comparison method has 2 types, and can select two methods of self comparison and codebook comparison through a set form, wherein the self comparison is the comparison of the front frame data and the back frame data.
And the data distribution module is responsible for receiving the connection request of the load terminal and returning the corresponding load data according to the received load data request. The data distribution is the inverse process of the data reception, and the flow of the data distribution is similar to the data reception, and at this time, the embodiment is a server, and the load terminal is a client. After the load terminals are connected through the requests, the embodiment distributes the data from the load cache to each load terminal according to different requests.
The configuration file management module is responsible for managing and analyzing configuration files of the software system and is used for flexibly configuring the ip address and the port number of the data transmission server, the storage path of data and log files, the ip address and the port number of the load terminal server, the path of playback files, the position from the file playback to the processing link, the size of an input/output buffer area of each module in the processing link, the cascade relation among the modules and the like.
The log management module is responsible for analyzing the log processing configuration file, creating a log storage directory according to the configuration items, opening up a write log file handle of a specified type in the configuration file, and finishing the storage of log information generated in the processing process of each module. The log management module can manage and store the abnormal information of each processing unit in a classified mode through the configuration file, and finally the abnormal information is stored in an Excel mode, so that a tester can conveniently check errors. And classifying the modules, giving the types of the error information to each type of module, and storing the error types in a classified manner.
The data storage management module is responsible for analyzing the storage configuration file, creating a data storage directory according to the classification of the configuration items, externally calling a data insertion function to press data to be stored into a write file buffer area of corresponding data, and uniformly managing the storage of data at all levels. This embodiment stores 4 types of data: a. the most original load data is directly stored through the data received by the data receiving module; b. in the synchronized data, the embodiment performs synchronization header synchronization on the original load data, and the synchronized data is stored; c. merging the data; d. and storing the data after subpackaging. The storage mode can conveniently carry out the back check and analysis on the data, and can position the wrong position at the fastest speed.
The interface management module is responsible for managing a main interface of the loaded software system, displaying important information such as the running state, the data volume, the error number, the data receiving and distributing and the like of each module to a user, and providing a configuration storage management function for the user. The software interface of the embodiment is shown in a simple flow chart form, and the running states of the modules, including information such as data processing amount and total error times, can be clearly seen. Further, the processing information of each module, such as the usage percentage of the cache, the specific error type, etc., can be seen.
The system is used for testing and needs to be provided with load simulation terminal software, the simulation load terminal receives load data distributed by the system, and error rate statistics, data storage and the like are carried out on the data.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The data combining and distributing processing system is characterized by being used for receiving load data communicated by a general data transmission server, carrying out format analysis, combining processing, data storage, data playback, error code query and exception prompt on the load data, classifying the load data, and distributing the load data to load terminal equipment in real time through an optical fiber network.
2. The data combining and distributing processing system according to claim 1, wherein the general data transmission server is configured to receive and process raw payload data.
3. The data combining and distributing processing system according to claim 1, wherein the real-time distribution conforms to a gigabit optical network protocol of a TCP/IP protocol, and simultaneously processes 2-way high-speed data, and each way processes, stores and distributes data at a rate of 3Gbps in real time.
4. The data combining and distributing processing system according to claim 1, wherein the data combining and distributing processing system is located between the general data transmission server and the load terminal device, and when the load terminal device logs in the data combining and distributing processing system, the data combining and distributing processing system is configured to automatically log in the general data transmission server, simultaneously apply for data according to a preset format, establish a channel connection, and in an abnormal network state, if the channel application fails, the data combining and distributing processing system automatically applies for data according to the preset format again until the connection of all channels is completed.
5. The data combining and distributing processing system according to claim 1, wherein the data combining and distributing processing system is configured to manually apply for data from the universal data transmission server when no-load terminal device applies for data.
6. The data combining and distributing processing system according to claim 1, wherein the payload data has two data links, one of which is a fixed 1-way data link and the other of which is a fixed 2-way data link, the two data links receive and process link data in real time and store the link data to the disk arrays in real time, and the link data of the two data links are stored in the two disk arrays respectively.
7. The data combining and distributing processing system according to claim 6, wherein each data link has two modes, which are a single-path mode and a two-path mode, respectively, and wherein in the two-path mode, parity frames of data are combined through virtual channel joint identification of link data and combined into complete payload data.
8. The data combining and distributing processing system according to claim 6, wherein each link data has 4 types of payload data, and the payload data is classified and processed through virtual channel joint identification, and distributed to the payload terminal devices or the analog payload terminal devices.
9. The data combining and distributing processing system according to claim 1, wherein the data combining and distributing processing system is configured to perform error code comparison on the classified load data, locate error information, perform statistical recording on error information of discontinuous, frame loss and unknown frame header, and automatically locate a segment of error data from the stored load data according to the statistical recording, and analyze the load data.
10. The data combining and distributing processing system according to claim 1, wherein the data combining and distributing processing system is configured to playback locally stored data files according to different code rates and extract payload data area contents of local data without connecting to the universal data transfer server.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115347937A (en) * | 2022-07-20 | 2022-11-15 | 上海卫星工程研究所 | Dual-channel data classification processing and distributing system of spacecraft data transmission subsystem |
| CN116827411A (en) * | 2023-06-27 | 2023-09-29 | 北京和德宇航技术有限公司 | Load data analysis method and device, electronic equipment and storage medium |
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