CN109510759A - A kind of Universal-purpose quick multi-protocol gateway realization system and method - Google Patents

A kind of Universal-purpose quick multi-protocol gateway realization system and method Download PDF

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CN109510759A
CN109510759A CN201811232148.2A CN201811232148A CN109510759A CN 109510759 A CN109510759 A CN 109510759A CN 201811232148 A CN201811232148 A CN 201811232148A CN 109510759 A CN109510759 A CN 109510759A
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data
protocol
interface
parameter
configuration
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CN109510759B (en
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丁玉奇
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Zhi Qiang (beijing) Co Ltd Tongda Technology
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/08Protocols for interworking; Protocol conversion
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/66Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/06Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/2866Architectures; Arrangements
    • H04L67/30Profiles
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/18Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/22Parsing or analysis of headers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/323Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the physical layer [OSI layer 1]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/324Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the data link layer [OSI layer 2], e.g. HDLC
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/329Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the application layer [OSI layer 7]

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Communication Control (AREA)

Abstract

The present invention relates to a kind of Universal-purpose quick multi-protocol gateways to realize system and method, the technical issues of a variety of custom protocols can not be parsed when what is solved is field adjustable construction, by using including data acquisition control and parsing module positioned at data acquisition equipment, the Command Line Parsing software module being connect with data acquisition control and parsing module, and the data acquisition protocol configuration software positioned at host computer;Data acquisition protocol includes physical layer, data link layer and application layer, data acquisition protocol configuration software is for configuring physical layer interface parameter/configuration interface, it acquires message and configures interface, analytic message configures the technical solution of interface and communication frame query interface, the problem is preferably resolved, can be used for realizing in the monitoring function of Internet of Things cloud in existing industry spot.

Description

A kind of Universal-purpose quick multi-protocol gateway realization system and method
Technical field
The present invention relates to Internet of Things and industry internet fields, and in particular to a kind of Universal-purpose quick multi-protocol gateway realization system System and method.
Background technique
With the development of Internet of Things, industry internet also work as by rapid rising, the most basic work as industry internet It is so data acquisition, the acquisition of industrial big data and traditional internet big data acquisition have many differences, encounter many problems.
There are the non-type problems of agreement for existing industrial data collection.The scene that industrial data collection faces is very multiple Miscellaneous, different sensors and Spot Data Acquisition System use and largely oneself develop various privately owned industrial protocols, and existing Data acquisition equipment is realized using preset universal industrial protocol, these agreements can not be resolved to privately owned custom protocol, cause When acquiring these data, the difference according to agreement is required every time and goes the program of modification data acquisition equipment, thus causes to adopt The installation and debugging that collect equipment require the participation of research staff, cannot achieve the generalization of acquisition equipment, lead to manpower and object The waste of power.
When industrial enterprise implements big data project, data are acquired there are many kinds of sources, need directly to adopt under some scenes Collect sensor or PLC, needs to acquire the automated system host computer data for having completed subordinate under some scenes.Department of Automation System manufacturer's level in deployment is irregular, and most of system is that data-interface, document do not lack largely yet, a large amount of existing Field system does not put the basis instruments data such as table, and existing industrial data collection gateway can not collect this equipment and be The data of system.
In some industrial scenes, requires that original system worked well cannot be influenced when increasing data acquisition equipment, adopt Collection work can only go acquisition data in such a way that parallel connection is monitored.Existing industrial data collection gateway is required using special Interface goes acquisition data, when field device cannot provide additional interface, just cannot achieve data acquisition.
To solve the above-mentioned problems, it is just very necessary to provide a kind of Universal-purpose quick multi-protocol gateway realization system and method.
Summary of the invention
It is a variety of the technical problem to be solved by the present invention is to be parsed when field adjustable existing in the prior art construction The technical issues of custom protocol.A kind of new Universal-purpose quick multi-protocol gateway realization system, the Universal-purpose quick multi-protocols are provided Gateway realize system can not parse when having the characteristics that solve field adjustable construction a variety of custom protocols, configure it is flexible.
In order to solve the above technical problems, the technical solution adopted is as follows:
A kind of Universal-purpose quick multi-protocol gateway realization system, is applied to data acquisition equipment, the Universal-purpose quick multi-protocol gateway Realization system includes the data acquisition control and parsing module positioned at data acquisition equipment, with data acquisition control and parsing module The Command Line Parsing software module of connection, and the data acquisition protocol configuration software positioned at host computer;Data acquisition protocol includes Physical layer, data link layer and application layer, data acquisition protocol configuration software are used to configure physical layer interface parameter/configuration interface, It acquires message and configures interface, analytic message configures interface and communication frame query interface.
In above scheme, for optimization, further, described in physical layer interface parameter/configuration interface include RS485 interface, RS422 interface, RS232 interface, CAN interface.
The present invention also provides a kind of Universal-purpose quick multi-protocol gateway implementation method, the method is based on Universal-purpose quick above-mentioned Multi-protocol gateway realizes that system, method include:
Step 1 generates configuration file according to the communication protocol of current collected equipment or system, and configuration file is with XML file lattice Formula is issued to data acquisition equipment, and data acquisition equipment parses the XML file received;Data acquisition equipment configuration acquisition equipment Physical layer parameter generates link layer analytical function, regeneration application layer protocol analytical function;
Step 2, application layer constructs main equipment according to the application layer protocol analytical function of step 2 and acquires data packet, then master Devices collect data packet is sent to data link layer, is packaged generation according to link layer analytical function by data link layer program Communication frame;
Communication frame is issued physical layer by step 3, data link layer, sends physical link for data flow according to setting parameter;
Step 4, data acquisition equipment monitor physical link, and all data received are sent to data link layer by physical layer, Data link layer is identified from equipment acknowledgement frame, while being received data and being placed in buffer area, true according to returned data Packet analyzing parameter The full communication frame received is sent to application layer by the end for determining return communication frame;
Step 5, application layer is according to protocol analysis Parameter analysis of electrochemical data packet, extracted valid data.
Further, the configuration item in the configuration file includes: physical layer parameter, main equipment acquisition message parameter, returns Return resolve packet parameter.
Further, the configuration item in the configuration file includes: interface type, baud rate, start bit, stop position, number According to position, even-odd check and flow control;The interface type includes RS232, RS485, RS422 and CAN.
Further, the configurable item that the acquisition message configuration interface provides includes link layer protocol configuration parameter, is answered With layer protocol configuration parameter.
Further, the link layer protocol configuration parameter includes acquisition message configuration parameter and returned packet verifying configuration Parameter;
The acquisition message configuration parameter includes communicating start of frame delimiter, device address, communication frame length, and communication frame types are more A customized constant of user, data check mode, data check start offset;
The returned packet configuration parameter includes communicating start of frame delimiter, device address, communication frame length, and communication frame types are more A customized constant of user, data check mode, data check starting position offset.
Further, the application layer protocol configuration parameter includes data offset locations, data length, data type, number According to byte order.
Beneficial effects of the present invention: the communication protocol of industry spot plurality of devices and system has been carried out unified pumping by the present invention As processing, the common trait of these agreements is proposed, is then directed to these common traits, realizes a kind of general data acquisition Frame.Meanwhile for different agreements, a variety of flexible configuration parameters are provided, a variety of custom protocols have been adapted to.To solve Field adjustable of having determined can not parse the problem of a variety of custom protocols when constructing.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1, Universal-purpose quick multi-protocol gateway realize system schematic.
Fig. 2, data acquisition protocol configuration software flow chart.
Fig. 3, the flow diagram of Command Line Parsing software module.
Fig. 4, the collection process schematic diagram of terminal data.
Fig. 5 receives the resolving schematic diagram of returned data.
Fig. 6, certain liquid level sensor system device link layer communication protocol.
Fig. 7, certain liquid level sensor system equipment application layer communication protocol.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention It is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, is not used to limit The fixed present invention.
Embodiment 1
The present embodiment provides a kind of Universal-purpose quick multi-protocol gateways to realize system, is applied to data acquisition equipment, and such as Fig. 1 is described Universal-purpose quick multi-protocol gateway realizes that system includes the data acquisition control and parsing module positioned at data acquisition equipment, with data Acquisition control and the Command Line Parsing software module of parsing module connection, and it is soft positioned at the data acquisition protocol configuration of host computer Part;Data acquisition protocol includes physical layer, data link layer and application layer, and data acquisition protocol configuration software is for configuring physics Layer interface parameter/configuration interface, acquisition message configure interface, and analytic message configures interface and communication frame query interface.
Specifically, described in physical layer interface parameter/configuration interface include RS485 interface, RS422 interface, RS232 interface, CAN interface.
The present embodiment also provides a kind of Universal-purpose quick multi-protocol gateway implementation method, comprising:
Step 1 generates configuration file according to the communication protocol of current collected equipment or system, and configuration file is with XML file lattice Formula is issued to data acquisition equipment, and data acquisition equipment parses the XML file received;Data acquisition equipment configuration acquisition equipment Physical layer parameter generates link layer analytical function, regeneration application layer protocol analytical function;
Step 2, application layer constructs main equipment according to the application layer protocol analytical function of step 2 and acquires data packet, then master Devices collect data packet is sent to data link layer, is packaged generation according to link layer analytical function by data link layer program Communication frame;
Communication frame is issued physical layer by step 3, data link layer, sends physical link for data flow according to setting parameter;
Step 4, data acquisition equipment monitor physical link, and all data received are sent to data link layer by physical layer, Data link layer is identified from equipment acknowledgement frame, while being received data and being placed in buffer area, true according to returned data Packet analyzing parameter The full communication frame received is sent to application layer by the end for determining return communication frame;
Step 5, application layer is according to protocol analysis Parameter analysis of electrochemical data packet, extracted valid data.
As shown in Fig. 2, realizing that scene is various wherein on data acquisition protocol configuration software installation and operation and debugging computer The detailed configuration of acquisition protocols various parameters, and configuration information is generated XML file, acquisition is sent to by network interface and is set It is standby.
As shown in figure 3, Command Line Parsing software module and data acquisition control and parsing module are operate in acquisition equipment Two software modules.Wherein, Command Line Parsing software module receives configuration XML file, and parses to file, generates acquisition Physical layer of device parameter, link layer analytical function, application layer protocol analytical function, collection process control function.Data acquisition control System and parsing module by the function of above-mentioned generation progress physical layer interface parameter configuration, data acquisition instructions issue, data are adopted Collect the work of returned data parsing.
It is the collection process of a terminal data as shown in Figure 5.Firstly, configuring acquisition physical layer of device parameter, then Start collection process control function.
(a) for active acquisition applications, collection process control function calls application layer protocol analytical function building acquisition master Dynamic querying command calls link layer protocol analytical function querying command is packaged into communication frame to be sent to physical layer and sends, so After begin listening for signal wire, when physical layer detects that data have returned data, receive valid data position simultaneously be sent to link layer, chain Road layer functions parse data, if detecting communication start of frame delimiter, start it is data cached, at the end of detecting communication frame, A complete communication frame is cached, communication frame check is calculated and if checksum test fails, abandons entire communication frame, open Beginning acquires next time;If verifying and verifying successfully, application layer protocol analytical function is called to parse communication frame, obtains acquisition number According to.Notice acquisition control program starts data acquisition next time.
(b) for passively listening application, collection process control function monitors always physical layer signal, when physical layer detects When data have returned data, receives valid data position and be sent to link layer, link layer function parses data, if detecting communication Start of frame delimiter, then start data cached, at the end of detecting communication frame, caches a complete communication frame, calculates communication frame It verifies and if checksum test fails, abandons entire communication frame, start to acquire next time;If verifying and verifying successfully, It then calls application layer protocol analytical function to parse communication frame, obtains acquisition data.Notice acquisition control program starts next number According to acquisition.
As shown in figure 5, being the resolving for receiving returned data.
After system starting, physical layer monitors communications link signals, is unit extraction by byte after monitoring signal start bit Data.Link layer program checkout changes whether data are a new communication frame, then opens if it is new traffic frame new a piece of slow Deposit, the communication frame receive data word joint number be set as 1, continue to next byte data, if whether new communication frame, It is then stored in current communication frame buffer, which is received data word joint number and adds 1.
It is configured according to communication protocol, if the communication protocol requirements identify in communication frame with communication frame length, is pressed Length data is taken out from received communication frame designated position according to protocol conventions, if agreement does not have communication frame length mark, Then communication frame length parameter is determined plus verification and length according to the verification of configuration and offset address.When the received data of buffer area When frame byte number reaches communication frame length parameter, then illustrate that the communication frame finishes receiving;At this time according to verification and calculation method meter Calculate entire communication frame check and and and communication frame band verification and compare, do not pass through if verified, abandon the data packet;Such as Fruit verification and verification pass through, then the communication frame receives normal, continue to parse the communication frame, extract communication frame types, determine that this is logical Letter frame is that host query message or terminal replies message if it is host query message then abandon data, is continued to next Entire communication frame is sent to application layer process if it is terminal replies message by a communication frame.
It as shown in Figure 6 and Figure 7, is certain liquid level sensor system equipment communication protocol.Fig. 6 is link layer protocol, the application of the position Fig. 7 Layer protocol, which is inquiry-response formula agreement, according to its protocol format:
A) physical layer parameter, interface type RS485, baud rate 9600, data bit 8, stop position 1, nothing are configured first Check bit;
B) secondly configuration querying frame format, first parameter are device address, and length is 1 byte;Second parameter is frame class Type (function code), length are 1 byte, and wherein 0x03 represents inquiry, and 0x06 represents write-in;Third parameter is application register Address, length are 2 bytes;4th parameter is the register number of inquiry, and length is 2 bytes;5th parameter is to need The application data of register are written, length is determined by corresponding register data type, and wherein int type is 2 bytes, Float is 4 bytes;6th parameter be verification and, the agreement using CRC16 it is first low after high mode verify.
C) configuration replys packet link layer and parses format again, and first parameter is device address, and length is 1 byte;The Two parameters are frame type (function code), and length is 1 byte, can only be configured to 0x04;Third parameter is returned data word Joint number, length are 2 bytes;4th parameter is verification and mode, is verified for the first low rear high mode of CRC16
D) shown according to the present example, we plan to take four oil temperature, temperature, quality, standard density parameters.Device address is 0x01, Then inquire being configured that for frame
Device address parameter configuration are as follows: 0x01
Protocol type parameter configuration are as follows: 0x03
Register address parameter configuration are as follows: 0x3C14
Register number parameter configuration are as follows: 0x0004
It verifies and is configured that and is high after CRC16 is first low
The parsing of packet parsing link layer is replied to be configured that
Device address parameter configuration are as follows: 0x01
Protocol type parameter configuration are as follows: 0x03
Register number parameter configuration are as follows: 0x0004
It verifies and is configured that and is high after CRC16 is first low
The parsing of packet parsing application layer is replied to be configured that
Oil temperature data: data offset 4, data length 4, data type Float;
Temperature record: data offset 8, data length 4, data type Float;
E) after having configured agreement, the configuration file of generation is loaded into acquisition equipment, acquisition equipment parses the configuration, with installing Standby physical interface parameter, and query communication frame is generated, data return communication frame is listened in monitored data return communication frame, parsing, finally Get oil temperature and temperature record.
Above-described embodiment only takes a practical application to do example, and the present invention is not limited only to this application, for various industry Field communication protocol can be matched using above-mentioned configuration method and postpone realization.
In addition, can be used using the configuration file as the script of the agreement, with postponing other for some particular protocol Place or scene in use the agreement when, can call directly.
The configuration method of agreement and the analysis mode of agreement are present embodiments provided, can facilitate and realize a kind of unified data Frame and common apparatus are acquired, rapid configuration of user when in face of different custom protocols is facilitated to use.
Although the illustrative specific embodiment of the present invention is described above, in order to the technology of the art Personnel are it will be appreciated that the present invention, but the present invention is not limited only to the range of specific embodiment, to the common skill of the art For art personnel, as long as long as various change the attached claims limit and determine spirit and scope of the invention in, one The innovation and creation using present inventive concept are cut in the column of protection.

Claims (8)

1. a kind of Universal-purpose quick multi-protocol gateway realizes system, it is applied to data acquisition equipment, it is characterised in that: described quickly logical It realizes that system includes the data acquisition control and parsing module positioned at data acquisition equipment with multi-protocol gateway, acquires and control with data System and the Command Line Parsing software module of parsing module connection, and the data acquisition protocol configuration software positioned at host computer;
Data acquisition protocol includes physical layer, data link layer and application layer, and data acquisition protocol configuration software is used to match glove Layer interface parameter/configuration interface is managed, acquisition message configures interface, and analytic message configures interface and communication frame query interface.
2. Universal-purpose quick multi-protocol gateway according to claim 1 realizes system, it is characterised in that: physical layer interface parameter Configure includes RS485 interface, RS422 interface, RS232 interface, CAN interface described in interface.
3. a kind of Universal-purpose quick multi-protocol gateway implementation method, it is characterised in that: the method is based on any institute of claim 1-2 The Universal-purpose quick multi-protocol gateway stated realizes that system, method include:
Step 1 generates configuration file according to the communication protocol of current collected equipment or system, and configuration file is with XML file lattice Formula is issued to data acquisition equipment, and data acquisition equipment parses the XML file received;Data acquisition equipment configuration acquisition equipment Physical layer parameter generates link layer analytical function, regeneration application layer protocol analytical function;
Step 2, application layer constructs main equipment according to the application layer protocol analytical function of step 2 and acquires data packet, then master Devices collect data packet is sent to data link layer, is packaged generation according to link layer analytical function by data link layer program Communication frame;
Communication frame is issued physical layer by step 3, data link layer, sends physical link for data flow according to setting parameter;
Step 4, data acquisition equipment monitor physical link, and all data received are sent to data link layer by physical layer, Data link layer is identified from equipment acknowledgement frame, while being received data and being placed in buffer area, true according to returned data Packet analyzing parameter The full communication frame received is sent to application layer by the end for determining return communication frame;
Step 5, application layer is according to protocol analysis Parameter analysis of electrochemical data packet, extracted valid data.
4. Universal-purpose quick multi-protocol gateway implementation method according to claim 3, it is characterised in that: in the configuration file Configuration item include: physical layer parameter, main equipment acquisition message parameter, returned data Packet analyzing parameter.
5. Universal-purpose quick multi-protocol gateway implementation method according to claim 4, it is characterised in that: in the configuration file Configuration item include: interface type, baud rate, start bit, stop position, data bit, even-odd check and flow control;The interface type Including RS232, RS485, RS422 and CAN.
6. Universal-purpose quick multi-protocol gateway implementation method according to claim 4, it is characterised in that: the acquisition message is matched The configurable item for setting interface offer includes link layer protocol configuration parameter, application layer protocol configuration parameter.
7. Universal-purpose quick multi-protocol gateway implementation method according to claim 6, it is characterised in that: the link layer protocol Configuration parameter includes that acquisition message configuration parameter and returned packet verify configuration parameter;
The acquisition message configuration parameter includes communicating start of frame delimiter, device address, communication frame length, and communication frame types are more A customized constant of user, data check mode, data check start offset;
The returned packet configuration parameter includes communicating start of frame delimiter, device address, communication frame length, and communication frame types are more A customized constant of user, data check mode, data check starting position offset.
8. Universal-purpose quick multi-protocol gateway implementation method according to claim 6, it is characterised in that: the application layer protocol Configuration parameter includes data offset locations, data length, data type, data byte sequence.
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CN115208826A (en) * 2021-04-12 2022-10-18 中移(上海)信息通信科技有限公司 Data processing method, device and system
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