CN114866623A - One-way feedback-free transmission method and system for laser real-time data of nuclear power station - Google Patents
One-way feedback-free transmission method and system for laser real-time data of nuclear power station Download PDFInfo
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 155
- 238000000034 method Methods 0.000 title claims abstract description 27
- 208000032369 Primary transmission Diseases 0.000 claims abstract description 50
- 208000032370 Secondary transmission Diseases 0.000 claims abstract description 26
- 238000012545 processing Methods 0.000 claims abstract description 26
- 230000006854 communication Effects 0.000 claims abstract description 25
- 238000004891 communication Methods 0.000 claims abstract description 25
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- 238000004806 packaging method and process Methods 0.000 claims description 9
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- H—ELECTRICITY
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- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/22—Parsing or analysis of headers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/12—Applying verification of the received information
- H04L63/123—Applying verification of the received information received data contents, e.g. message integrity
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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
- H04L69/24—Negotiation of communication capabilities
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention relates to a method and a system for one-way feedback-free transmission of laser real-time data of a nuclear power station, which comprises the following steps: a sending part of the physical breaking single-lead system establishes connection communication with a sending end; the transmitting part is used for processing the real-time data of communication for one time to obtain one-time transmission data and transmitting the one-time transmission data to the receiving part of the object breaking single-guide system through the laser one-way transmission assembly; the receiving part carries out secondary processing on the primary transmission data to obtain secondary transmission data; the receiving part establishes connection with the data receiving end; after the connection with the data receiving end is completed, the receiving part sends secondary transmission data to the data receiving end, after the sending part completes primary data transmission or regularly disconnects the real-time data transmission connection and reestablishes the data connection, disconnection and reconnection information is synchronized to the receiving part through the laser one-way transmission component, the receiving part disconnects and reconnects the receiving end after receiving the information, and the real-time data is sent after the connection is established.
Description
Technical Field
The invention relates to the technical field of nuclear power station data transmission, in particular to a method and a system for one-way feedback-free transmission of laser real-time data of a nuclear power station.
Background
At present, the technology based on the real-time data transmission protocol is established on the basis of two-way communication, different network safety regions are established in a nuclear power station according to the requirements of a network safety law and the like, systems with different safety protection levels are divided into the same region, and data transmission exists between different safety regions. However, the requirement of the bidirectional communication of the real-time data transmission protocol cannot realize the physical disconnection of the network in different safety areas of the nuclear power station, cannot ensure the risk of network attack of a low safety area to a high safety area, and reduces the network safety of the nuclear power station.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method and a system for transmitting laser real-time data of a nuclear power station in a one-way feedback-free mode aiming at the defects of the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: a one-way feedback-free transmission method for laser real-time data of a nuclear power station is constructed, and comprises the following steps:
a sending part of the physical break single lead system receives a data sending end connection communication request and establishes connection with the data sending end according to the connection communication request;
after the connection with the data sending end is established, if real-time data sent by the data sending end is received, the real-time data is processed for one time, and then one-time transmission data is obtained;
transmitting data to a receiving part through a laser transmission component;
the receiving part carries out secondary processing on the primary transmission data to obtain secondary transmission data;
the receiving part is connected with a data receiving end;
after the connection with the data receiving end is established, the receiving part sends the secondary transmission data to the data receiving end;
after the sending end finishes one-time data transmission, the real-time data connection is disconnected;
the disconnection operation is synchronized to the receiving section by the laser means;
the receiving part and the receiving end are also connected and disconnected;
and the transmitting part of the repeated object breaking single-guide system receives a data transmitting end connection communication request, establishes connection with the data transmitting end according to the connection communication request and carries out next real-time data transmission.
In the method for transmitting the laser real-time data of the nuclear power station in the one-way feedback-free manner, after the connection with the data transmitting terminal is completed, if the real-time data transmitted by the data transmitting terminal is received, the real-time data is processed for one time to obtain one-time transmission data, and the one-time transmission data is transmitted to the receiving part of the physical outage single-channel system, the method comprises the following steps:
after the connection with the data sending end is established, if real-time data sent by the data sending end is received, the sending part carries out protocol stripping processing on the data to obtain stripped data;
packaging the stripped data to obtain packaged data;
and carrying out integrity identification on the encapsulated data to obtain the primary transmission data.
In the method for transmitting the laser real-time data of the nuclear power station in the one-way feedback-free manner, the method further comprises the following steps:
and adding a session mark to the stripped data to obtain the encapsulated data, and performing unidirectional feedback-free transmission through a laser transmission component, wherein the sending part only has a laser sending component, the receiving part only has a receiving component, and the physical layer is disconnected, so that unidirectional feedback-free transmission of the data is realized.
In the method for transmitting the laser real-time data of the nuclear power station in a one-way feedback-free manner, the step of obtaining secondary transmission data after the receiving part performs secondary processing on the primary transmission data comprises the following steps:
receiving the primary transmission data;
acquiring a transmission sequence number mark of the primary transmission data, and checking a transmission sequence number according to the transmission sequence number mark;
acquiring an integrity identifier of the primary transmission data, and carrying out integrity check according to the integrity identifier;
and acquiring a data transmission session mark and a transmission strategy mark of the primary transmission data, and matching a transmission strategy according to the session mark and the transmission strategy mark to acquire the secondary transmission data.
The invention also provides a one-way feedback-free transmission system for the laser real-time data of the nuclear power station, which comprises the following components: the system comprises a data sending end, a data receiving end and an object breaking single-lead system;
the data transmitting end and the data receiving end transmit data through the physical break single lead system in a one-way feedback-free mode;
the object breaking single guide system comprises: a transmitting unit and a receiving unit;
the transmission unit is configured to:
receiving a data sending end connection communication request, and establishing connection with the data sending end according to the connection communication request;
after the connection with the data sending end is established, if real-time data sent by the data sending end is received, the real-time data is processed for the first time to obtain primary transmission data, and the primary transmission data is sent to a receiving part of the physical disconnection single lead system;
the receiving section is configured to:
performing secondary processing on the primary transmission data to obtain secondary transmission data;
the receiving part establishes connection with the data receiving end;
and after the connection with the data receiving end is established, the receiving part sends the secondary transmission data to the data receiving end.
In the one-way feedback-free transmission system for laser real-time data of a nuclear power station, the transmitting part includes:
the first receiving module is used for establishing connection with the data sending end and receiving real-time data sent by the data sending end;
the stripping module is used for carrying out protocol stripping processing on the data to obtain stripped data;
the packaging module is used for packaging the stripping data to obtain packaging data;
and the identification module is used for carrying out integrity identification on the encapsulated data to obtain the primary transmission data.
In the one-way feedback-free transmission system for the laser real-time data of the nuclear power station, the stripping module is specifically configured to:
removing a protocol header in the real-time data to obtain original data to be transmitted; the original data to be transmitted is the stripped data.
In the one-way feedback-free transmission system for the laser real-time data of the nuclear power station, the encapsulation module is specifically used for:
and adding a data transmission session mark, a transmission strategy mark and a transmission sequence number mark to the stripped data to obtain the encapsulated data.
In the one-way feedback-free transmission system for real-time laser data of a nuclear power station, the receiving part includes:
a second receiving module, configured to receive the primary transmission data;
the sequence number checking module is used for acquiring a transmission sequence number mark of the primary transmission data and checking a transmission sequence number according to the transmission sequence number mark;
the integrity checking module is used for acquiring an integrity identifier of the primary transmission data and carrying out integrity checking according to the integrity identifier;
and the strategy matching module is used for acquiring a real-time data session mark and a transmission strategy mark of the primary transmission data, and matching a transmission strategy according to the real-time data session mark and the transmission strategy mark to acquire the secondary transmission data.
In the one-way feedback-free transmission system for real-time laser data in a nuclear power station, the sending part is further configured to:
after finishing data transmission once or presetting time, carrying out real-time data connection disconnection reconnection operation, and synchronizing the disconnection signal to a receiving part;
the receiving part is further configured to:
and when the data disconnection signal is received, the real-time data connection with the receiving end is disconnected.
The method and the system for transmitting the laser real-time data of the nuclear power station in the one-way feedback-free mode have the following beneficial effects that: the method comprises the following steps: a transmitting part of the physical break single lead system receives a data transmitting end connection communication request and establishes connection with the data transmitting end according to the connection communication request; after the connection with the data sending end is completed, if real-time data sent by the data sending end is received, the data is processed for the first time to obtain first transmission data, and the first transmission data is sent to a receiving part of the physical breaking single-lead system through a laser transmission component; the receiving part carries out secondary processing on the primary transmission data to obtain secondary transmission data; the receiving part establishes connection with the data receiving end; after the connection with the data receiving end is completed, the receiving part sends secondary transmission data to the data receiving end, single real-time transmission data must keep the data complete and orderly, the state of the receiving part is completely unknown by the sending part because the transmission process is unidirectional without feedback, in order to keep the real-time performance of the data transmission, the real-time data transmission connection is disconnected and the data connection is reestablished after the sending part completes the primary data transmission or at regular time, the disconnection and re-operation information is synchronized to the receiving part through the laser unidirectional transmission component, the receiving part performs disconnection and re-connection operation with the receiving end after receiving the information, the real-time data is sent after the connection is established, the condition that the follow-up data cannot arrive due to the failure and restart of the receiving end is ensured, and the real-time performance of the follow-up transmission data is ensured. The invention adopts the material breaking single-guide system to realize the one-way transmission of the real-time data, realizes the one-way non-feedback transmission of the real-time data of the nuclear power station, and improves the data safety of the nuclear power station.
Drawings
The invention will be further described with reference to the following drawings and examples, in which:
fig. 1 is a schematic flow chart of a method for transmitting real-time laser data in a nuclear power plant in a one-way feedback-free manner according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a transmitting part processing data according to an embodiment of the present invention;
fig. 3 is a flowchart of a receiving part processing data according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a system for transmitting real-time laser data in a nuclear power plant without feedback in a one-way manner according to an embodiment of the present invention.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
The invention provides a method for transmitting laser real-time data of a nuclear power station in a one-way feedback-free manner, which can realize a one-way feedback-free mechanism and has stable and reliable data transmission, and aims to realize the one-way feedback-free transmission of data transmitted from a high safety area to a low safety area of the nuclear power station.
Specifically, referring to fig. 1, a schematic flow diagram of an optional embodiment of the method for transmitting real-time laser data in a nuclear power plant without feedback in a one-way manner according to the present invention is shown.
As shown in fig. 1, the method for transmitting the laser real-time data of the nuclear power station in a one-way feedback-free manner includes the following steps:
in step S101, the transmitting unit 21 of the physical break single lead system 20 receives the connection communication request from the data transmitting terminal 10, and establishes a connection with the data transmitting terminal 10 according to the connection communication request.
Specifically, when the data transmitting end 10 needs to transmit data to the receiving end, the data transmitting end 10 first transmits a connection communication request to the transmitting part 21 of the physical outage single lead system 20, and after receiving the connection communication request, the transmitting part 21 of the physical outage single lead system 20 establishes a connection with the data transmitting end 10 according to the connection communication request. The connection between the transmitting unit 21 and the data transmitting terminal 10 may be established by using a conventional data connection method, but the present invention is not limited thereto.
Step S102, after the connection with the data sending end 10 is completed, if the real-time data sent by the data sending end 10 is received, the data is processed for one time, and one-time transmission data is obtained
In step S103, the laser transmission means transmits the primary transmission data to the receiving unit 22 of the object singulation system 20.
In some embodiments, as shown in fig. 2, if the real-time data sent by the data sending end 10 is received after the connection with the data sending end 10 is completed, the receiving part 22, which performs a first processing on the data to obtain a first transmission data and sends the first transmission data to the physical outage single guidance system 20, includes:
step S1021, after the connection with the data sending end 10 is completed, if the real-time data sent by the data sending end 10 is received, the sending part 21 performs protocol stripping processing on the data to obtain stripped data.
Optionally, in this embodiment of the present invention, the performing, by the sending unit 21, protocol stripping processing on the real-time data, and obtaining stripped data includes: the sending part 21 removes the protocol header in the real-time data to obtain the original data to be transmitted; the original data to be transmitted is stripped data.
Specifically, after receiving the data sent by the data sending end 10, the sending part 21 performs protocol stripping processing on the real-time data to remove a protocol header, so as to extract original data to be transmitted. The original data to be transmitted is data which does not contain any network protocol information.
And step S1022, packaging the stripped data to obtain packaged data.
Optionally, in the embodiment of the present invention, encapsulating the stripped data, and obtaining encapsulated data includes: and adding a data transmission session mark, a transmission strategy mark and a transmission sequence number mark to the stripped data to obtain encapsulated data. The laser transmission component is used for unidirectional feedback-free transmission, the sending part is only provided with the laser sending component, the receiving part is only provided with the receiving component, the physical layer is disconnected, and unidirectional feedback-free transmission of data is achieved.
Specifically, by encapsulating the stripped data, the data carrying the data transmission session mark, the transmission policy mark and the transmission sequence number mark can be obtained, so that the transmitted data can be traced, and tracking and searching are facilitated.
And S1023, carrying out integrity identification on the encapsulated data to obtain primary transmission data.
Optionally, in the embodiment of the present invention, the integrity identification performed on the encapsulated data may be an SM3 integrity identification, and by performing the integrity identification on the encapsulated data, the integrity and accuracy of the data may be improved.
In step S104, the receiving unit 22 performs secondary processing on the primary transmission data to obtain secondary transmission data.
In some embodiments, as shown in fig. 3, after the receiving unit 22 performs the secondary processing on the primary transmission data, obtaining the secondary transmission data includes:
and step S1031, receiving the primary transmission data.
Step S1032 acquires the transmission sequence number flag of the primary transmission data, and performs transmission sequence number check according to the transmission sequence number flag.
Specifically, in the embodiment of the present invention, after receiving the primary transmission data, the transmission sequence number flag of the primary transmission data is obtained first, so as to check the sequence number of the primary transmission data according to the transmission sequence number flag, and further, the data can be ensured to be not lost and to be ordered by the sequence number.
Step S1033, obtaining an integrity flag of the primary transmission data, and performing integrity check according to the integrity flag.
Specifically, in the embodiment of the present invention, after the sequence number check is completed, the integrity check on the one-time transmission data is completed through the integrity identifier of the one-time transmission data, so as to check whether the transmitted data is complete, thereby ensuring the accuracy and integrity of the data.
Step S1034, obtaining the conversation mark and the transmission strategy mark of the primary transmission data, and matching the transmission strategy according to the conversation mark and the transmission strategy mark to obtain the secondary transmission data.
Specifically, in the embodiment of the present invention, the corresponding transmission policy may be matched through the data transmission session flag and the transmission policy flag of the data to be transmitted at one time, so as to perform data transmission through the matched transmission policy.
In step S105, the receiving unit 22 establishes a connection with the data receiving terminal 30.
Optionally, in this embodiment of the present invention, the connection between the receiving portion 22 and the data receiving end 30 may be established after the sending portion 21 establishes the connection with the data sending end 10, and the connection established between the receiving portion 22 and the data receiving end 30 corresponds to the connection established between the sending portion 21 and the data sending end 10.
In step S106, after completing the connection with the data receiving terminal 30, the receiving unit 22 transmits the secondary transmission data to the data receiving terminal 30.
It can be understood that, in the embodiment of the present invention, after the transmission policy matching is completed, the receiving portion 22 may transmit the secondary transmission data to the data receiving end 30 through the connection established between the receiving portion 22 and the data receiving end 30, and complete the data transmission from the data transmitting end 10 to the data receiving end 30, thereby implementing the unidirectional transmission without feedback of the real-time data between the data transmitting end 10 and the data receiving end 30.
In step S107, after completing the data transmission once, the transmitting end 10 disconnects from the transmitting unit 21 of the physical outage single lead system 20.
Specifically, in the embodiment of the present invention, when the sending end 10 completes one data transmission, or within a certain time range, the sending end 10 is disconnected from the sending part 21 of the physical disconnection single lead system 20, and the signal is encapsulated after the disconnection signal is received by the sending part 21, so as to obtain the disconnection operation data.
In step S108, the transmitting unit 21 of the physical trip system 20 synchronizes the disconnection operation data with the receiving unit 22 of the physical trip system 20.
Specifically, in the present embodiment, the transmitting section 21 transmits the disconnection operation to the receiving section 22 by the laser unidirectional transmission 215.
In step S109, the receiving unit 22 of the object breaking single lead system 20 is disconnected from the receiving end.
Specifically, in the present embodiment, the receiving unit 22 performs a disconnection operation with the receiving terminal 30 after receiving the disconnection operation data of the transmitting unit.
And step S110, repeating the operation of step S101 to ensure the real-time performance of data transmission.
In the embodiment of the present invention, the data sending end 10 and the data receiving end 30 may be different safety areas in the nuclear power plant, for example, the data sending end 10 may be a high safety area, and the data receiving end 30 may be a low safety area.
In the embodiment of the present invention, the object breaking single-guide system 20 is implemented by an object breaking isolation laser module, and the transmitting part 21 only has a light emitting part, and the receiving part 22 only has a receiving part 22, so that a physical person ensures the unidirectionality of data transmission. The specific transmission principle is as follows: the sending part 21 starts the real-time service to receive the application data, the receiving part 22 starts the client to send the data to the data receiving end 30, and the one-way feedback-free transmission of the real-time data is completed by correspondingly adjusting the data transmission logic of the transmission application (the sending party only sends the data, and the receiving party only receives the data).
Further, in the embodiment of the present invention, due to the non-feedback characteristic of the unidirectional transmission of the physical outage single lead system 20, the sending unit 21 cannot sense the state of the receiving unit 22, and cannot continue to receive the data of the connection after the receiving unit 22 is abnormal, and it is necessary to reestablish a connection with the real-time data transmission client to keep the subsequent data reachable. In order to solve the problem, in the embodiment of the present invention, the data transmission client disconnects and reestablishes the connection every time data transmission is completed or every certain time or every certain data amount is transmitted in the data transmission process. In a similar way, the server can also receive a plurality of connections simultaneously, the data processing before each connection is independent, the connections established between each connection and the client are in one-to-one correspondence, and the server has the capability of processing data and processing data in parallel.
Referring to fig. 4, a schematic structural diagram of an alternative embodiment of the nuclear power plant laser real-time data one-way feedback-free transmission system provided by the present invention is shown. The one-way feedback-free transmission system for the laser real-time data of the nuclear power station can be used for realizing the one-way feedback-free transmission method for the laser real-time data of the nuclear power station disclosed by the embodiment of the invention.
Specifically, as shown in fig. 4, the system for transmitting real-time laser data in a nuclear power plant in a one-way and feedback-free manner includes: a data transmitting end 10, a data receiving end 30 and an object breaking single-lead system 20.
The data transmitting end 10 and the data receiving end 30 transmit data through the physical break single lead system 20 in a one-way feedback-free mode. The object breaking single guide system 20 includes: a transmission unit 21 and a reception unit 22. The transmission unit 21 and the reception unit 22 are in one-way transmission and have no feedback.
Specifically, in the embodiment of the present invention, the transmitting unit 21 is configured to: receiving a connection communication request of a data sending end 10, and establishing connection with the data sending end 10 according to the connection communication request; after the connection with the data transmitting terminal 10 is completed, if the real-time data transmitted by the data transmitting terminal 10 is received, the real-time data is processed once to obtain a primary transmission data, and the primary transmission data is transmitted to the receiving part 22 of the physical distribution network system 20.
Further, in the embodiment of the present invention, the sending unit 21 is further configured to: performing a disconnection and reconnection operation of real-time data after completing one data transmission or a preset time, and synchronizing the disconnection signal to the receiving part 22; upon receiving the data disconnection signal, the receiving unit 22 disconnects the real-time data connection with the receiving terminal 30. Wherein the preset time can be determined according to actual operation.
Optionally, in an embodiment of the present invention, the sending unit 21 includes:
the first receiving module 211, the first receiving module 211 is configured to establish a connection with the data sending end 10 and receive data sent by the data sending end 10.
And the stripping module 212, wherein the stripping module 212 is used for performing protocol stripping processing on the real-time data to obtain stripped data.
Among them, the peeling module 212 is specifically configured to: removing a protocol header in the real-time data to obtain original data to be transmitted; the original data to be transmitted is stripped data.
And the encapsulating module 213, the encapsulating module 213 is configured to encapsulate the stripped data to obtain encapsulated data.
The encapsulation module 213 is specifically configured to: and adding a data transmission session mark, a transmission strategy mark and a transmission sequence number mark to the stripped data to obtain encapsulated data.
And the identification module 214 is configured to perform integrity identification on the encapsulated data to obtain primary transmission data.
Specifically, in the embodiment of the present invention, the receiving unit 22 is configured to: performing secondary processing on the primary transmission data to obtain secondary transmission data; the receiving part 22 establishes connection with the data receiving end 30; after completing the connection with the data receiving terminal 30, the receiving part 22 transmits the secondary transmission data to the data receiving terminal 30.
Optionally, in an embodiment of the present invention, the receiving unit 22 includes:
a second receiving module 221, wherein the second receiving module 221 is configured to receive the once-transmitted data.
The sequence number checking module 222, the sequence number checking module 222 is configured to obtain a transmission sequence number flag of the primary transmission data, and perform transmission sequence number checking according to the transmission sequence number flag.
And the integrity checking module 223, the integrity checking module 223 is configured to obtain an integrity identifier of the once-transmitted data, and perform integrity checking according to the integrity identifier.
The policy matching module 224, the policy matching module 224 is configured to obtain a session flag and a transmission policy flag of the primary transmission data, and match a transmission policy according to the data transmission session flag and the transmission policy flag to obtain the secondary transmission data.
The method can realize stable and reliable derivation of the one-way feedback-free data from the high-safety area system to the low-safety area system of the nuclear power station, and prevent the high-safety area from being attacked by the network through network communication from the low-safety area.
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. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
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.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.
Claims (10)
1. A nuclear power station laser real-time data one-way feedback-free transmission method is characterized by comprising the following steps:
a sending part of the physical break single lead system receives a data sending end connection communication request and establishes connection with the data sending end according to the connection communication request;
after the connection with the data sending end is established, if real-time data sent by the data sending end is received, the real-time data is processed for one time, and then one-time transmission data is obtained;
transmitting data to a receiving part through a laser transmission component;
the receiving part carries out secondary processing on the primary transmission data to obtain secondary transmission data;
the receiving part is connected with a data receiving end;
after the connection with the data receiving end is established, the receiving part sends the secondary transmission data to the data receiving end;
after the sending end finishes one-time data transmission, the real-time data connection is disconnected;
the disconnection operation is synchronized to the receiving section by the laser means;
the receiving part and the receiving end are also connected and disconnected;
and the transmitting part of the repeated object breaking single-guide system receives a data transmitting end connection communication request, establishes connection with the data transmitting end according to the connection communication request and carries out next real-time data transmission.
2. The method for one-way feedback-free transmission of the laser real-time data of the nuclear power plant according to claim 1, wherein after the connection with the data sending end is completed, if the real-time data sent by the data sending end is received, the real-time data is processed once to obtain one-time transmission data;
and the receiving part which sends the primary transmission data to the object breaking single guide system through the laser transmission component comprises:
after the connection with the data sending end is established, if real-time data sent by the data sending end is received, the sending part carries out protocol stripping processing on the real-time data to obtain stripped data;
packaging the stripped data to obtain packaged data;
and carrying out integrity identification on the encapsulated data to obtain the primary transmission data.
3. The one-way feedback-free transmission method for the laser real-time data of the nuclear power plant as recited in claim 2, further comprising:
and adding a session mark to the stripped data to obtain the encapsulated data, and performing unidirectional feedback-free transmission through a laser transmission component, wherein the transmitting part only has a laser transmitting component, the receiving part only has a receiving component, and the physical layer is disconnected, so that unidirectional feedback-free transmission of the data is realized.
4. The method for the one-way feedback-free transmission of the laser real-time data of the nuclear power plant according to claim 3, wherein the obtaining of the secondary transmission data after the secondary processing of the primary transmission data by the receiving part comprises:
receiving the primary transmission data;
acquiring a transmission sequence number mark of the primary transmission data, and checking a transmission sequence number according to the transmission sequence number mark;
acquiring an integrity identifier of the primary transmission data, and carrying out integrity check according to the integrity identifier;
and acquiring a session mark and a transmission strategy mark of the primary transmission data, and matching a transmission strategy according to the session mark and the transmission strategy mark to acquire the secondary transmission data.
5. The utility model provides a one-way no feedback transmission system of nuclear power station laser real-time data which characterized in that includes: the system comprises a data sending end, a data receiving end and an object breaking single-lead system;
the data transmitting end and the data receiving end transmit data through the physical break single lead system in a one-way feedback-free mode;
the object breaking single guide system comprises: a transmitting unit and a receiving unit;
the transmission unit is configured to:
receiving a data sending end connection communication request, and establishing connection with the data sending end according to the connection communication request;
after the connection with the data sending end is established, if real-time data sent by the data sending end is received, the real-time data is processed for the first time to obtain primary transmission data, and the primary transmission data is sent to a receiving part of the physical disconnection single lead system;
the receiving section is configured to:
performing secondary processing on the primary transmission data to obtain secondary transmission data;
the receiving part establishes connection with the data receiving end;
and after the connection with the data receiving end is established, the receiving part sends the secondary transmission data to the data receiving end.
6. The system of claim 5, wherein the transmitter comprises:
the first receiving module is used for establishing connection with the data sending end and receiving real-time data sent by the data sending end;
the stripping module is used for carrying out protocol stripping processing on the real-time data to obtain stripped data;
the packaging module is used for packaging the stripping data to obtain packaging data;
and the identification module is used for carrying out integrity identification on the encapsulated data to obtain the primary transmission data.
7. The system of claim 6, wherein the stripping module is specifically configured to:
removing a protocol header in the real-time data to obtain original data to be transmitted; the original data to be transmitted is the stripped data.
8. The system of claim 6, wherein the encapsulation module is specifically configured to:
and adding a data transmission session mark, a transmission strategy mark and a transmission sequence number mark to the stripped data to obtain the encapsulated data.
9. The system of claim 8, wherein the receiver comprises:
a second receiving module, configured to receive the primary transmission data;
the sequence number checking module is used for acquiring a transmission sequence number mark of the primary transmission data and checking a transmission sequence number according to the transmission sequence number mark;
the integrity checking module is used for acquiring an integrity identifier of the primary transmission data and carrying out integrity checking according to the integrity identifier;
and the strategy matching module is used for acquiring a real-time data session mark and a transmission strategy mark of the primary transmission data, and matching a transmission strategy according to the data session mark and the transmission strategy mark to acquire the secondary transmission data.
10. The system of claim 9, wherein the transmitter is further configured to:
after finishing data transmission once or presetting time, carrying out real-time data connection disconnection reconnection operation, and synchronizing the disconnection signal to a receiving part;
the receiving part is further configured to:
and when the data disconnection signal is received, the real-time data connection with the receiving end is disconnected.
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