CN112714504B - End-to-end real-time data transmission method and system - Google Patents

End-to-end real-time data transmission method and system Download PDF

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CN112714504B
CN112714504B CN202011487303.2A CN202011487303A CN112714504B CN 112714504 B CN112714504 B CN 112714504B CN 202011487303 A CN202011487303 A CN 202011487303A CN 112714504 B CN112714504 B CN 112714504B
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CN112714504A (en
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张凯
郑应强
李彬
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Beijing LSSEC Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • 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
    • H04L67/14—Session management
    • H04L67/141—Setup of application sessions
    • 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
    • H04L67/14—Session management
    • H04L67/142—Managing session states for stateless protocols; Signalling session states; State transitions; Keeping-state mechanisms
    • 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
    • H04L67/14—Session management
    • H04L67/146—Markers for unambiguous identification of a particular session, e.g. session cookie or URL-encoding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/12—Messaging; Mailboxes; Announcements
    • H04W4/14—Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/25—Maintenance of established connections

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Abstract

The invention discloses an end-to-end real-time data transmission method and a system, comprising the following steps: the method comprises the steps of establishing communication connection with opposite-end equipment through an initial ip and a port number, starting to receive first real-time data transmitted by the opposite-end equipment, generating a brand new ip and a port number when a jump moment is reached, sending the brand new ip and the port number to the opposite-end equipment, receiving second real-time data transmitted by the opposite-end equipment by using the brand new ip and the port number simultaneously, receiving third real-time data transmitted by the opposite-end equipment by using the brand new ip and the port number when the opposite-end equipment is connected to the brand new ip and the port number, canceling the initial ip and the port number, integrating the first real-time data, the second real-time data and the third real-time data to obtain target real-time data transmitted by the opposite-end equipment, ensuring the integrity and the continuity of data receiving, and completely receiving the data transmitted by the opposite-end equipment without delay.

Description

End-to-end real-time data transmission method and system
Technical Field
The present invention relates to the field of technologies, and in particular, to an end-to-end real-time data transmission method and system.
Background
With the development and progress of science and technology, the network is full of life of every person, especially after 5G is developed, the development speed of the network is higher, and in life, the network can be used for a series of operations such as data transmission, online communication and online payment from the company to the person. According to the communication principle of the internet, after each device accesses the network and configures or dynamically obtains the IP address, the access to other IP network hosts or devices can be realized, and meanwhile, the device can be accessed by other IP network hosts or devices. As a technology capable of effectively preventing network information interception, the research on address and port hopping technology in the field of network security is increasingly intensive. Address and port hopping refers to the network node having the capability of randomly changing its own address and port, or the address and port changing constantly during transmission. Existing network hopping techniques include: the time synchronization-based address port dynamic hopping technology and the address port hopping technology according to the mode of sending the ACK message have the following problems: 1. the address port dynamic hopping technology based on time synchronization has very strict requirements on time synchronization, and both sides need to calculate IP addresses and ports after hopping according to time, so that the time synchronization in a strict sense is difficult to achieve when a network has delay and blockage, and data transmission after hopping is blocked; 2. the address port hopping technology of the ACK message sending mode cannot work away from the server, and cost is greatly lost.
Disclosure of Invention
In view of the above-mentioned problems, the present invention provides an end-to-end real-time data transmission method and system to solve the problems mentioned in the background art that the requirement for time synchronization is very strict, both parties must calculate IP addresses and ports after hopping according to time, and it is difficult to achieve strict time synchronization when the network is delayed and blocked, which may cause the data transmission after hopping to be stuck and unable to leave the server, and the cost is greatly lost.
An end-to-end real-time data transmission method, comprising the steps of:
establishing communication connection with opposite terminal equipment through an initial ip and a port number, and starting to receive first real-time data transmitted by the opposite terminal equipment;
when the jump moment is reached, generating a brand new ip and a port number, sending the brand new ip and the port number to the opposite terminal equipment, and simultaneously receiving second real-time data transmitted by the opposite terminal equipment by using the brand new ip and the port number and the initial ip and the port number;
when the opposite terminal equipment is connected to the brand new ip and the port number, receiving third real-time data transmitted by the opposite terminal equipment by using the brand new ip and the port number, and canceling the initial ip and the port number;
and integrating the first real-time data, the second real-time data and the third real-time data to obtain target real-time data transmitted by the opposite-end equipment.
Preferably, the establishing a communication connection with an opposite device through an initial ip and a port number to start receiving the first real-time data transmitted by the opposite device includes:
acquiring specific information of an initial ip and a port number of local equipment;
editing the specific information as SM4 encrypted short message content;
after editing is finished, obtaining a first target SM4 encrypted short message, and sending the first target SM4 encrypted short message to the opposite terminal equipment;
confirming whether the opposite terminal equipment receives the first target SM4 encrypted short message, if so, sending a prompt of successful information reception, and otherwise, sending the first target SM4 encrypted short message to the opposite terminal equipment again;
whether an opposite terminal device sends a first communication connection instruction within a preset time length is confirmed, if so, communication connection is achieved with the opposite terminal device, and if not, whether network connection of the local terminal device is normal is checked;
if the network connection of the local terminal equipment is normal, sending a second communication connection instruction to the opposite terminal equipment, and if the network connection of the local terminal equipment is abnormal, repairing the network connection of the local terminal equipment by using a preset network repairing tool;
and after the opposite terminal equipment realizes communication connection with the local terminal equipment according to the second communication connection instruction, setting service for the initial ip and the port number, and starting to receive the first real-time data transmitted by the opposite terminal equipment after the setting is finished.
Preferably, when the jump time is reached, a new ip and a port number are generated, the new ip and the port number are sent to the opposite device, and the new ip and the port number and the initial ip and the port number are used to receive second real-time data transmitted by the opposite device, where the method includes:
confirming whether the jump moment is reached according to a preset rule;
if the jump moment is reached, generating a brand new ip and port number, and sending the brand new ip and port number to the opposite terminal equipment in the form of SM4 encrypted short messages;
setting services which are the same as the initial ip and port numbers for the brand new ip and port;
and simultaneously receiving second real-time data transmitted by the opposite terminal equipment by using the brand new ip and port number and the initial ip and port number.
Preferably, when the peer device is connected to the new ip and port number, the method further includes, before the third real-time data transmitted by the peer device is received by using the new ip and port number and the initial ip and port number is cancelled:
fusing the second real-time data received by the brand new ip and port number and the second real-time data received by the initial ip and port number;
and removing the second real-time data which appears repeatedly to obtain the final target second real-time data.
Preferably, when the peer device is connected to the brand new ip and port number, receiving third real-time data transmitted by the peer device by using the brand new ip and port number, and canceling the initial ip and port number includes:
confirming whether the opposite terminal equipment decrypts the brand new ip and the port number, and if so, establishing communication connection between the brand new ip and the port number and the opposite terminal equipment;
connecting the connection with the opposite terminal equipment by using the completely new ip and the port number;
receiving third real-time data transmitted by the opposite terminal equipment by using the brand new ip and the port number;
and the service state of the initial ip and the port number is suspended and the initial ip and the port number are cancelled.
Preferably, the generating a new ip and a port number when the transition time is reached, sending the new ip and the port number to the peer device, and receiving second real-time data transmitted by the peer device by using the new ip and the port number and the initial ip and the port number at the same time includes:
when the initial ip and the port number are synchronized with the opposite terminal equipment, dividing the time for transmitting the first real-time data into equal time units;
taking the equal-length time unit as a jumping interval;
acquiring a current time unit, determining whether the current time unit is a hopping moment or not according to the hopping interval, if so, generating the brand new ip and the port number, and otherwise, continuously detecting the next time unit;
determining the target services of initial ip and port numbers corresponding to N target time units adjacent to the current time unit;
setting target services of the initial ip and port numbers corresponding to the N target units on the brand new ip and port numbers;
and simultaneously receiving second real-time data transmitted by the opposite terminal equipment by using the brand new ip and port number and the initial ip and port number.
Preferably, the method further comprises:
when any one of the devices enters a signal blind area and signal interruption occurs and then the current ip and port number are changed when the network connection state is recovered, generating a second target SM4 encrypted short message and sending the encrypted short message to the other device;
when the opposite side equipment receives the encrypted short message of the second target SM4, generating a new ip and port number, and sending the new ip and port number to the target equipment with signal interruption by using a third target SM4 encrypted short message;
and after receiving the encrypted short message of the third target SM4, the target device with the signal interruption is connected with the opposite device according to the new ip and the port number.
Preferably, the integrating the first real-time data, the second real-time data, and the third real-time data to obtain the target real-time data transmitted by the peer device includes:
analyzing the first real-time data, the second real-time data and the third real-time data to obtain a first data set, a second data set and a third data set;
calculating the target matching degree of each subdata in the first data set, the second data set and the third data set based on the reference characteristics of the target real-time data;
counting and extracting target subdata with the target matching degree greater than or equal to a preset matching degree to obtain a first matching data list;
grading the target subdata in the first matching data list according to a preset matching degree interval to obtain parameters of each grade;
determining weight values corresponding to all levels of parameters according to data fusion requirements;
determining the authenticity of the corresponding target subdata in each grading result according to the weight value corresponding to each grade of parameter;
calculating the data accuracy of each grading result based on the weight value corresponding to the parameter in each grading result and the authenticity of the target subdata;
comparing the weight value corresponding to the parameter in each grading result with the data accuracy, retaining the first grading result with the weight value more than or equal to the data accuracy, and rejecting the second grading result with the weight value less than the data accuracy;
acquiring first target subdata contained in a first grading result;
calculating the proportion of the first target subdata in the first data set, the second data set and the third data set respectively;
based on the calculated proportion, deleting useless data in the first data set, the second data set and the third data set to obtain processed first real-time data, second real-time data and third real-time data;
and performing data integration on the processed first real-time data, the processed second real-time data and the processed third real-time data to obtain target real-time data transmitted by the opposite-end equipment.
Preferably, the fusing the second real-time data received by the new ip and port number and the second real-time data received by the initial ip and port number includes:
dividing the second real-time data received by the new ip and the port number and the second real-time data received by the initial ip and the port number into a plurality of equal-length fourth data sets respectively;
acquiring data content in each section of fourth data set, and grading the data content in each section of fourth data set by using a preset grading mechanism to obtain a plurality of grading values;
and calculating a correlation coefficient between the second real-time data received by the brand new ip and the port number and the second real-time data received by the initial ip and the port number according to the plurality of score values:
Figure BDA0002839695220000061
wherein k represents a correlation coefficient between the second real-time data received by a brand new ip and port number and the second real-time data received by an initial ip and port number, M represents a divided segment number, xi1Data precision, t, of the ith segment of data set in the second real-time data received as a brand new ip and port numberi1The value of credit, x, of the ith segment of the dataset in the second real-time data received as a new ip and port numberi2Data precision, t, of the ith segment of data set in the second real-time data received as the initial ip and port numberi2The value of credit, θ, for the ith set of data in the second real-time data received as the initial ip and port number1Network latency, θ, expressed as a new ip and port number2Network latency expressed as initial ip and port number;
and confirming whether the correlation coefficient between the second real-time data received by the brand new ip and the port number and the second real-time data received by the initial ip and the port number is larger than or equal to a first preset threshold value, if so, directly carrying out all data fusion on the second real-time data received by the brand new ip and the port number and the second real-time data received by the initial ip and the port number, otherwise, calculating the importance degree of data contained in each section of fourth data set:
Figure BDA0002839695220000062
wherein Q isiThe importance degree S of data contained in the ith section of fourth data set in the second real-time data received by the new ip and the port number or the second real-time data received by the initial ip and the port numberiThe confidentiality index L of data contained in the ith fourth data set in the second real-time data received by the new ip and the port number or the second real-time data received by the initial ip and the port numberiThe fourth data set of the ith section in the second real-time data received by the new ip and the port number or the second real-time data received by the initial ip and the port number contains the resource occupation ratio of the data occupied by the opposite terminal equipment during transmission, B represents the data transmission interference bias generated by the opposite terminal equipment, A represents the data reception interference bias generated by the local terminal equipment, e represents a natural constant, the value is 2.72, epsilon represents the random error in the calculation process, and the values are [0.1 and 0.15%]；
Arranging the importance degrees of data contained in each section of fourth data set in second real-time data received by a brand new ip and port number or second real-time data received by an initial ip and port number according to a descending order to obtain two first arrangement results;
deleting the first target fourth data set with the importance degree smaller than a second preset threshold value in the two first arrangement results to obtain two second arrangement results;
and performing data fusion on the second target fourth data sets in the two second arrangement results.
An end-to-end real-time data transmission system, the system comprising:
the connection module is used for establishing communication connection with opposite terminal equipment through an initial ip and a port number and starting to receive first real-time data transmitted by the opposite terminal equipment;
the generating module is used for generating a brand new ip and a port number when the jump moment is reached, sending the brand new ip and the port number to the opposite terminal equipment, and receiving second real-time data transmitted by the opposite terminal equipment by using the brand new ip and the port number and the initial ip and the port number;
a receiving module, configured to receive third real-time data transmitted by the peer device by using the brand new ip and port number when the peer device is connected to the brand new ip and port number, and cancel the initial ip and port number;
and the integration module is used for integrating the first real-time data, the second real-time data and the third real-time data to obtain target real-time data transmitted by the opposite-end equipment.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a flowchart illustrating an end-to-end real-time data transmission method according to the present invention;
fig. 2 is another flowchart of an end-to-end real-time data transmission method according to the present invention;
fig. 3 is a flowchart illustrating a method for end-to-end real-time data transmission according to another embodiment of the present invention;
fig. 4 is a schematic structural diagram of an end-to-end real-time data transmission system provided in the present invention.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
With the development and progress of science and technology, the network is full of life of every person, especially after 5G is developed, the development speed of the network is higher, and in life, the network can be used for a series of operations such as data transmission, online communication and online payment from the company to the person. According to the communication principle of the internet, after each device accesses the network and configures or dynamically obtains the IP address, the access to other IP network hosts or devices can be realized, and meanwhile, the device can be accessed by other IP network hosts or devices. As a technology capable of effectively preventing network information interception, the research on address and port hopping technology in the field of network security is increasingly intensive. Address and port hopping refers to the network node having the capability of randomly changing its own address and port, or the address and port changing constantly during transmission. Existing network hopping techniques include: the time synchronization-based address port dynamic hopping technology and the address port hopping technology according to the mode of sending the ACK message have the following problems: 1. the address port dynamic hopping technology based on time synchronization has very strict requirements on time synchronization, and both sides need to calculate IP addresses and ports after hopping according to time, so that the time synchronization in a strict sense is difficult to achieve when a network has delay and blockage, and data transmission after hopping is blocked; 2. the address port hopping technology of the ACK message sending mode cannot work away from the server, and cost is greatly lost. In order to solve the above problems, the present embodiment discloses an end-to-end real-time data transmission method.
An end-to-end real-time data transmission method, as shown in fig. 1, includes the following steps:
step S101, establishing communication connection with opposite terminal equipment through an initial ip and a port number, and starting to receive first real-time data transmitted by the opposite terminal equipment;
step S102, when the jump moment is reached, generating a brand new ip and a port number, sending the brand new ip and the port number to the opposite terminal equipment, and simultaneously receiving second real-time data transmitted by the opposite terminal equipment by using the brand new ip and the port number and an initial ip and the port number;
step S103, when the opposite terminal equipment is connected to the brand new ip and the port number, receiving third real-time data transmitted by the opposite terminal equipment by using the brand new ip and the port number, and canceling the initial ip and the port number;
and step S104, integrating the first real-time data, the second real-time data and the third real-time data to obtain target real-time data transmitted by the opposite terminal equipment.
The working principle of the technical scheme is as follows: establishing communication connection with opposite-end equipment through an initial ip and a port number, starting to receive first real-time data transmitted by the opposite-end equipment, generating a brand new ip and a port number when a jump moment is reached, sending the brand new ip and the port number to the opposite-end equipment, simultaneously using the brand new ip and the port number as well as the initial ip and the port number to receive second real-time data transmitted by the opposite-end equipment, receiving third real-time data transmitted by the opposite-end equipment by using the brand new ip and the port number when the opposite-end equipment is connected to the brand new ip and the port number, canceling the initial ip and the port number, and integrating the first real-time data, the second real-time data and the third real-time data to obtain target real-time data transmitted by the opposite-end equipment.
The beneficial effects of the above technical scheme are: the method has the advantages that the data can be received completely and continuously by using the brand new IP and port number when the jumping moment is reached, the data sent by the opposite terminal equipment can be received completely without delay, the problem that in the prior art, as the IP address and the port after jumping are calculated by the two sides according to time, strict time synchronization is difficult to achieve when delay and blockage exist in a network, and further data transmission after jumping is blocked is caused is solved.
In an embodiment, the establishing a communication connection with a peer device through an initial ip and a port number to start receiving first real-time data transmitted by the peer device includes:
acquiring specific information of an initial ip and a port number of local equipment;
editing the specific information as SM4 encrypted short message content;
after editing is finished, obtaining a first target SM4 encrypted short message, and sending the first target SM4 encrypted short message to the opposite terminal equipment;
confirming whether the opposite terminal equipment receives the first target SM4 encrypted short message, if so, sending a prompt of successful information reception, and otherwise, sending the first target SM4 encrypted short message to the opposite terminal equipment again;
whether an opposite terminal device sends a first communication connection instruction within a preset time length is confirmed, if so, communication connection is achieved with the opposite terminal device, and if not, whether network connection of the local terminal device is normal is checked;
if the network connection of the local terminal equipment is normal, sending a second communication connection instruction to the opposite terminal equipment, and if the network connection of the local terminal equipment is abnormal, repairing the network connection of the local terminal equipment by using a preset network repairing tool;
and after the opposite terminal equipment realizes communication connection with the local terminal equipment according to the second communication connection instruction, setting service for the initial ip and the port number, and starting to receive the first real-time data transmitted by the opposite terminal equipment after the setting is finished.
The beneficial effects of the above technical scheme are: meanwhile, after the SM4 encrypted short message is received by the opposite terminal device, whether the network connection state of the local terminal device is normal or not can be checked in real time by confirming whether the opposite terminal device is connected with the local terminal device or not, so that the network monitoring of the local terminal device can be realized, and the device safety and the stability of the local terminal device are improved.
In an embodiment, as shown in fig. 2, when a jump point is reached, a new ip and port number are generated, the new ip and port number are sent to the peer device, and the new ip and port number and the initial ip and port number are used to receive second real-time data transmitted by the peer device at the same time, where the method includes:
step S201, confirming whether the jump time is reached according to a preset rule;
step S202, if the jump moment is reached, generating a brand new ip and a port number, and sending the brand new ip and the port number to the opposite terminal equipment in a mode of SM4 encrypted short messages;
step S203, setting services which are the same as the initial ip and port numbers for the brand new ip and port;
and step S204, receiving second real-time data transmitted by the opposite terminal equipment by using the brand new ip and port number and the initial ip and port number.
The beneficial effects of the above technical scheme are: the service which is the same as the initial ip and the port number is set for the brand new ip and the port number, so that the working principles of the brand new ip and the port number are the same, meanwhile, the received data are prevented from being missed, and the integrity of the transmitted data is further ensured.
In an embodiment, when the peer device is connected to the new ip and port number, the method further includes, before receiving third real-time data transmitted by the peer device by using the new ip and port number and canceling the initial ip and port number:
fusing the second real-time data received by the brand new ip and port number and the second real-time data received by the initial ip and port number;
and removing the second real-time data which appears repeatedly to obtain the final target second real-time data.
The beneficial effects of the above technical scheme are: the memory occupation space of the local terminal equipment is saved, and the reliability and uniqueness of the data can be ensured by deleting the repeated data.
In an embodiment, as shown in fig. 3, when the peer device is connected to the completely new ip and port number, receiving third real-time data transmitted by the peer device by using the completely new ip and port number, and cancelling the initial ip and port number includes:
step S301, confirming whether the opposite terminal equipment decrypts the brand new ip and the port number, and if so, establishing communication connection between the brand new ip and the port number and the opposite terminal equipment;
step S302, the connection with the opposite terminal equipment is connected by using the brand new ip and the port number;
step S303, receiving third real-time data transmitted by the opposite terminal equipment by using the brand new ip and the port number;
and step S304, the service state of the initial ip and the port number is suspended, and the initial ip and the port number are cancelled.
The beneficial effects of the above technical scheme are: the safety of the brand new ip and the port number is guaranteed, decryption is carried out by setting a preset decryption tool, the brand new ip and the port number can be further safer, and further, the initial ip and the port number are cancelled when the opposite terminal device is connected to the brand new ip and the port number, so that the opposite terminal device only needs to transmit data from the brand new ip and the port number, the workload of the opposite terminal device is reduced, and the data transmission efficiency is improved.
In an embodiment, the generating a new ip and port number when the transition time is reached, sending the new ip and port number to the peer device, and receiving second real-time data transmitted by the peer device by using the new ip and port number and the initial ip and port number at the same time includes:
when the initial ip and the port number are synchronized with the opposite terminal equipment, dividing the time for transmitting the first real-time data into equal time units;
taking the equal-length time unit as a jumping interval;
acquiring a current time unit, determining whether the current time unit is a hopping moment or not according to the hopping interval, if so, generating the brand new ip and the port number, and otherwise, continuously detecting the next time unit;
determining the target services of initial ip and port numbers corresponding to N target time units adjacent to the current time unit;
setting target services of the initial ip and port numbers corresponding to the N target units on the brand new ip and port numbers;
and simultaneously receiving second real-time data transmitted by the opposite terminal equipment by using the brand new ip and port number and the initial ip and port number.
The beneficial effects of the above technical scheme are: the data receiving integrity and the continuity can be guaranteed, the problem that time synchronization cannot be achieved macroscopically is solved, the data are received from the multiple time units together, the fact that the preset time units receive the data of the opposite terminal device no matter how much the time delay of the opposite terminal device exists can be guaranteed, the problems of data transmission jamming and delay are avoided, and the data transmission efficiency is further improved.
In one embodiment, the method further comprises:
when any one of the devices enters a signal blind area and signal interruption occurs and then the current ip and port number are changed when the network connection state is recovered, generating a second target SM4 encrypted short message and sending the encrypted short message to the other device;
when the opposite side equipment receives the encrypted short message of the second target SM4, generating a new ip and port number, and sending the new ip and port number to the target equipment with signal interruption by using a third target SM4 encrypted short message;
and after receiving the encrypted short message of the third target SM4, the target device with the signal interruption is connected with the opposite device according to the new ip and the port number.
The beneficial effects of the above technical scheme are: the local terminal equipment can know the connection condition of the opposite terminal equipment at any time, and can be quickly reconnected when the opposite terminal equipment is disconnected, so that the data transmission is not interrupted, and the reliability, the stability and the transmission efficiency of the data transmission are further ensured.
In an embodiment, the integrating the first real-time data, the second real-time data, and the third real-time data to obtain the target real-time data transmitted by the peer device includes:
analyzing the first real-time data, the second real-time data and the third real-time data to obtain a first data set, a second data set and a third data set;
calculating the target matching degree of each subdata in the first data set, the second data set and the third data set based on the reference characteristics of the target real-time data;
counting and extracting target subdata with the target matching degree greater than or equal to a preset matching degree to obtain a first matching data list;
grading the target subdata in the first matching data list according to a preset matching degree interval to obtain parameters of each grade;
determining weight values corresponding to all levels of parameters according to data fusion requirements;
determining the authenticity of the corresponding target subdata in each grading result according to the weight value corresponding to each grade of parameter;
calculating the data accuracy of each grading result based on the weight value corresponding to the parameter in each grading result and the authenticity of the target subdata;
comparing the weight value corresponding to the parameter in each grading result with the data accuracy, retaining the first grading result with the weight value more than or equal to the data accuracy, and rejecting the second grading result with the weight value less than the data accuracy;
acquiring first target subdata contained in a first grading result;
calculating the proportion of the first target subdata in the first data set, the second data set and the third data set respectively;
based on the calculated proportion, deleting useless data in the first data set, the second data set and the third data set to obtain processed first real-time data, second real-time data and third real-time data;
and performing data integration on the processed first real-time data, the processed second real-time data and the processed third real-time data to obtain target real-time data transmitted by the opposite-end equipment.
The beneficial effects of the above technical scheme are: the first real-time data, the second real-time data and the third real-time data are processed to delete useless data among the first real-time data, the second real-time data and the third real-time data and combine continuous data, so that target real-time data transmitted by opposite-end equipment can be quickly obtained, and the continuity and the integrity of the data are guaranteed.
In an embodiment, the fusing the second real-time data received by the new ip and port number and the second real-time data received by the initial ip and port number includes:
dividing the second real-time data received by the new ip and the port number and the second real-time data received by the initial ip and the port number into a plurality of equal-length fourth data sets respectively;
acquiring data content in each section of fourth data set, and grading the data content in each section of fourth data set by using a preset grading mechanism to obtain a plurality of grading values;
and calculating a correlation coefficient between the second real-time data received by the brand new ip and the port number and the second real-time data received by the initial ip and the port number according to the plurality of score values:
Figure BDA0002839695220000141
wherein k represents a correlation coefficient between the second real-time data received by a brand new ip and port number and the second real-time data received by an initial ip and port number, M represents a divided segment number, xi1Data precision, t, of the ith segment of data set in the second real-time data received as a brand new ip and port numberi1The value of credit, x, of the ith segment of the dataset in the second real-time data received as a new ip and port numberi2Data precision, t, of the ith segment of data set in the second real-time data received as the initial ip and port numberi2The value of credit, θ, for the ith set of data in the second real-time data received as the initial ip and port number1Network latency, θ, expressed as a new ip and port number2Network latency expressed as initial ip and port number;
and confirming whether the correlation coefficient between the second real-time data received by the brand new ip and the port number and the second real-time data received by the initial ip and the port number is larger than or equal to a first preset threshold value, if so, directly carrying out all data fusion on the second real-time data received by the brand new ip and the port number and the second real-time data received by the initial ip and the port number, otherwise, calculating the importance degree of data contained in each section of fourth data set:
Figure BDA0002839695220000151
wherein Q isiThe importance degree S of data contained in the ith section of fourth data set in the second real-time data received by the new ip and the port number or the second real-time data received by the initial ip and the port numberiThe confidentiality index L of data contained in the ith fourth data set in the second real-time data received by the new ip and the port number or the second real-time data received by the initial ip and the port numberiThe fourth data set of the ith section in the second real-time data received by the new ip and the port number or the second real-time data received by the initial ip and the port number contains the resource occupation ratio of the data occupied by the opposite terminal equipment during transmission, B represents the data transmission interference bias generated by the opposite terminal equipment, A represents the data reception interference bias generated by the local terminal equipment, e represents a natural constant, the value is 2.72, epsilon represents the random error in the calculation process, and the values are [0.1 and 0.15%]；
Arranging the importance degrees of data contained in each section of fourth data set in second real-time data received by a brand new ip and port number or second real-time data received by an initial ip and port number according to a descending order to obtain two first arrangement results;
deleting the first target fourth data set with the importance degree smaller than a second preset threshold value in the two first arrangement results to obtain two second arrangement results;
performing data fusion on a second target fourth data set in the two second arrangement results;
in this embodiment, the two first alignment results are the alignment results of the data received by the two ip and port numbers.
The beneficial effects of the above technical scheme are: by calculating the relevance coefficient between the second real-time data received by the brand new ip and the port number and the second real-time data received by the initial ip and the port number, whether all data fusion or partial data fusion is realized can be judged according to the calculation result, the situation that the working efficiency is influenced by the fusion of useless data can be avoided to a certain extent, furthermore, the difference between the data received by the brand new ip and the port number and the data received by the initial ip and the port number can be reflected laterally from the importance degree by calculating the importance degree of each section of fourth data set, further, the judgment of receiving the same data can be effectively made on the data, and a foundation is provided for removing the same data subsequently.
In one embodiment, the method comprises the following steps:
1. the equipment is initialized: the local terminal equipment informs the opposite terminal of establishing a link between the IP and the port number by sending a short message encrypted by SM4 to the opposite terminal.
2. When one end device reaches the jump chance according to the preset rule, the address port jump generation module is triggered to generate a new IP and a new port and inform the network communication module, and the network communication simultaneously monitors the data of the opposite end by using the new IP and the old port number on the original basis.
3. And the short message sending and receiving module encrypts the address and the port information after hopping by using SM4 and sends the address and the port information to the opposite terminal. When the opposite terminal receives the new IP address and port, it decrypts and sends the following data through the new IP address and port, when the local terminal network communication module receives the data information coming from the new IP address and port, it cancels the original address port, and both sides use the new port to communicate until the next jump chance arrives. The port hopping synchronization mode can also adopt an improved time synchronization hopping strategy, time after synchronization networks at two ends is discretely divided into equal-length time units, the equal-length time units are used as hopping intervals, new IP and port numbers are generated when hopping moments arrive, and a program provides services of addresses and ports of n time units adjacent to the current time unit according to a preset value until other services are cancelled after connection is established by adopting the new IP and the ports from end to end.
4. When the opposite terminal enters the signal blind area and recovers, the IP address of the external network changes, the two terminals are completely disconnected, but at the moment, the short message sending and receiving module of the opposite terminal sends the encrypted short message to inform the opposite terminal of the encrypted short message after detecting that the IP changes. While the two parties again establish a connection with each other.
The beneficial effects of the above technical scheme are: aiming at the problem that the prior art is strict in time synchronization requirement and difficult to achieve complete synchronization, the method adopts the mode that a hopping end simultaneously serves a new IP and a new port on the original basis after achieving hopping, so that the new and old port addresses of the local end can receive data no matter whether the opposite end has time delay, and the original address and port service are cancelled after the new port address receives the data, thereby ensuring the continuity of data transmission. Meanwhile, the continuity of end-to-end communication is realized; the double-jump strategy of the IP address ports of the outer network and the IP address ports of the inner network can be realized, and the safety and the attack resistance are better; the server is not needed, and the cost of the server can be saved.
The embodiment also discloses an end-to-end real-time data transmission system, as shown in fig. 4, the system includes:
a connection module 401, configured to establish a communication connection with an opposite device through an initial ip and a port number, and start receiving first real-time data transmitted by the opposite device;
a generating module 402, configured to generate a new ip and a port number when a jump moment is reached, send the new ip and the port number to the peer device, and receive second real-time data transmitted by the peer device by using the new ip and the port number and an initial ip and the port number at the same time;
a receiving module 403, configured to receive third real-time data transmitted by the peer device by using the brand new ip and port number when the peer device is connected to the brand new ip and port number, and cancel the initial ip and port number;
an integrating module 404, configured to integrate the first real-time data, the second real-time data, and the third real-time data to obtain target real-time data transmitted by the peer device.
The working principle and the advantageous effects of the above technical solution have been explained in the method claims, and are not described herein again.
It will be understood by those skilled in the art that the first and second terms of the present invention refer to different stages of application.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (9)

1. An end-to-end real-time data transmission method, characterized by comprising the following steps:
establishing communication connection with opposite terminal equipment through an initial ip and a port number, and starting to receive first real-time data transmitted by the opposite terminal equipment;
when the jump moment is reached, generating a brand new ip and a port number, sending the brand new ip and the port number to the opposite terminal equipment, and simultaneously receiving second real-time data transmitted by the opposite terminal equipment by using the brand new ip and the port number and the initial ip and the port number;
when the opposite terminal equipment is connected to the brand new ip and the port number, receiving third real-time data transmitted by the opposite terminal equipment by using the brand new ip and the port number, and canceling the initial ip and the port number;
integrating the first real-time data, the second real-time data and the third real-time data to obtain target real-time data transmitted by the opposite-end equipment;
the integrating the first real-time data, the second real-time data and the third real-time data to obtain the target real-time data transmitted by the peer device includes:
analyzing the first real-time data, the second real-time data and the third real-time data to obtain a first data set, a second data set and a third data set;
calculating the target matching degree of each subdata in the first data set, the second data set and the third data set based on the reference characteristics of the target real-time data;
counting and extracting target subdata with the target matching degree greater than or equal to a preset matching degree to obtain a first matching data list;
grading the target subdata in the first matching data list according to a preset matching degree interval to obtain parameters of each grade;
determining weight values corresponding to all levels of parameters according to data fusion requirements;
determining the authenticity of the corresponding target subdata in each grading result according to the weight value corresponding to each grade of parameter;
calculating the data accuracy of each grading result based on the weight value corresponding to the parameter in each grading result and the authenticity of the target subdata;
comparing the weight value corresponding to the parameter in each grading result with the data accuracy, retaining the first grading result with the weight value more than or equal to the data accuracy, and rejecting the second grading result with the weight value less than the data accuracy;
acquiring first target subdata contained in a first grading result;
calculating the proportion of the first target subdata in the first data set, the second data set and the third data set respectively;
based on the calculated proportion, deleting useless data in the first data set, the second data set and the third data set to obtain processed first real-time data, second real-time data and third real-time data;
and performing data integration on the processed first real-time data, the processed second real-time data and the processed third real-time data to obtain target real-time data transmitted by the opposite-end equipment.
2. The end-to-end real-time data transmission method according to claim 1, wherein the establishing a communication connection with a peer device through an initial ip and a port number to start receiving the first real-time data transmitted by the peer device includes:
acquiring specific information of an initial ip and a port number of local equipment;
editing the specific information as SM4 encrypted short message content;
after editing is finished, obtaining a first target SM4 encrypted short message, and sending the first target SM4 encrypted short message to the opposite terminal equipment;
confirming whether the opposite terminal equipment receives the first target SM4 encrypted short message, if so, sending a prompt of successful information reception, and otherwise, sending the first target SM4 encrypted short message to the opposite terminal equipment again;
whether an opposite terminal device sends a first communication connection instruction within a preset time length is confirmed, if so, communication connection is achieved with the opposite terminal device, and if not, whether network connection of the local terminal device is normal is checked;
if the network connection of the local terminal equipment is normal, sending a second communication connection instruction to the opposite terminal equipment, and if the network connection of the local terminal equipment is abnormal, repairing the network connection of the local terminal equipment by using a preset network repairing tool;
and after the opposite terminal equipment realizes communication connection with the local terminal equipment according to the second communication connection instruction, setting service for the initial ip and the port number, and starting to receive the first real-time data transmitted by the opposite terminal equipment after the setting is finished.
3. The end-to-end real-time data transmission method according to claim 2, wherein when a jump point is reached, a new ip and port number are generated, the new ip and port number are sent to the peer device, and second real-time data transmitted by the peer device are received by using the new ip and port number and the initial ip and port number, and the method includes:
confirming whether the jump moment is reached according to a preset rule;
if the jump moment is reached, generating a brand new ip and port number, and sending the brand new ip and port number to the opposite terminal equipment in the form of SM4 encrypted short messages;
setting services which are the same as the initial ip and port numbers for the brand new ip and port;
and simultaneously receiving second real-time data transmitted by the opposite terminal equipment by using the brand new ip and port number and the initial ip and port number.
4. The end-to-end real-time data transmission method according to claim 3, wherein when the peer device is connected to the new ip and port number, the method further includes, before the third real-time data transmitted by the peer device is received by using the new ip and port number and the initial ip and port number is cancelled:
fusing the second real-time data received by the brand new ip and port number and the second real-time data received by the initial ip and port number;
and removing the second real-time data which appears repeatedly to obtain the final target second real-time data.
5. The end-to-end real-time data transmission method according to claim 1, wherein when the peer device is connected to the completely new ip and port number, the receiving, by using the completely new ip and port number, third real-time data transmitted by the peer device, and canceling the initial ip and port number includes:
confirming whether the opposite terminal equipment decrypts the brand new ip and the port number, and if so, establishing communication connection between the brand new ip and the port number and the opposite terminal equipment;
connecting the connection with the opposite terminal equipment by using the completely new ip and the port number;
receiving third real-time data transmitted by the opposite terminal equipment by using the brand new ip and the port number;
and the service state of the initial ip and the port number is suspended and the initial ip and the port number are cancelled.
6. The end-to-end real-time data transmission method according to claim 1, wherein the generating a new ip and port number when the transition time is reached, sending the new ip and port number to the peer device, and receiving second real-time data transmitted by the peer device by using the new ip and port number and the initial ip and port number simultaneously includes:
when the initial ip and the port number are synchronized with the opposite terminal equipment, dividing the time for transmitting the first real-time data into equal time units;
taking the equal-length time unit as a jumping interval;
acquiring a current time unit, determining whether the current time unit is a hopping moment or not according to the hopping interval, if so, generating the brand new ip and the port number, and otherwise, continuously detecting the next time unit;
determining the target services of initial ip and port numbers corresponding to N target time units adjacent to the current time unit;
setting target services of the initial ip and port numbers corresponding to the N target units on the brand new ip and port numbers;
and simultaneously receiving second real-time data transmitted by the opposite terminal equipment by using the brand new ip and port number and the initial ip and port number.
7. The end-to-end real-time data transmission method according to claim 1, further comprising:
when any one of the devices enters a signal blind area and signal interruption occurs and then the current ip and port number are changed when the network connection state is recovered, generating a second target SM4 encrypted short message and sending the encrypted short message to the other device;
when the opposite side equipment receives the encrypted short message of the second target SM4, generating a new ip and port number, and sending the new ip and port number to the target equipment with signal interruption by using a third target SM4 encrypted short message;
and after receiving the encrypted short message of the third target SM4, the target device with the signal interruption is connected with the opposite device according to the new ip and the port number.
8. The end-to-end real-time data transmission method according to claim 4, wherein the fusing the second real-time data received by the new ip and port number and the second real-time data received by the initial ip and port number includes:
dividing the second real-time data received by the new ip and the port number and the second real-time data received by the initial ip and the port number into a plurality of equal-length fourth data sets respectively;
acquiring data content in each section of fourth data set, and grading the data content in each section of fourth data set by using a preset grading mechanism to obtain a plurality of grading values;
and calculating a correlation coefficient between the second real-time data received by the brand new ip and the port number and the second real-time data received by the initial ip and the port number according to the plurality of score values:
Figure FDA0003155484990000061
wherein k represents a correlation coefficient between the second real-time data received by a brand new ip and port number and the second real-time data received by an initial ip and port number, M represents a divided segment number, xi1Data precision, t, of the ith segment of data set in the second real-time data received as a brand new ip and port numberi1The value of credit, x, of the ith segment of the dataset in the second real-time data received as a new ip and port numberi2Data precision, t, of the ith segment of data set in the second real-time data received as the initial ip and port numberi2The value of credit, θ, for the ith set of data in the second real-time data received as the initial ip and port number1Network latency, θ, expressed as a new ip and port number2Is expressed asNetwork latency of the start ip and port number;
and confirming whether the correlation coefficient between the second real-time data received by the brand new ip and the port number and the second real-time data received by the initial ip and the port number is larger than or equal to a first preset threshold value, if so, directly carrying out all data fusion on the second real-time data received by the brand new ip and the port number and the second real-time data received by the initial ip and the port number, otherwise, calculating the importance degree of data contained in each section of fourth data set:
Figure FDA0003155484990000071
wherein Q isiThe importance degree S of data contained in the ith section of fourth data set in the second real-time data received by the new ip and the port number or the second real-time data received by the initial ip and the port numberiThe confidentiality index L of data contained in the ith fourth data set in the second real-time data received by the new ip and the port number or the second real-time data received by the initial ip and the port numberiThe fourth data set of the ith section in the second real-time data received by the new ip and the port number or the second real-time data received by the initial ip and the port number contains the resource occupation ratio of the data occupied by the opposite terminal equipment during transmission, B represents the data transmission interference bias generated by the opposite terminal equipment, A represents the data reception interference bias generated by the local terminal equipment, e represents a natural constant, the value is 2.72, epsilon represents the random error in the calculation process, and the values are [0.1 and 0.15%]；
Arranging the importance degrees of data contained in each section of fourth data set in second real-time data received by a brand new ip and port number or second real-time data received by an initial ip and port number according to a descending order to obtain two first arrangement results;
deleting the first target fourth data set with the importance degree smaller than a second preset threshold value in the two first arrangement results to obtain two second arrangement results;
and performing data fusion on the second target fourth data sets in the two second arrangement results.
9. An end-to-end real-time data transmission system, comprising:
the connection module is used for establishing communication connection with opposite terminal equipment through an initial ip and a port number and starting to receive first real-time data transmitted by the opposite terminal equipment;
the generating module is used for generating a brand new ip and a port number when the jump moment is reached, sending the brand new ip and the port number to the opposite terminal equipment, and receiving second real-time data transmitted by the opposite terminal equipment by using the brand new ip and the port number and the initial ip and the port number;
a receiving module, configured to receive third real-time data transmitted by the peer device by using the brand new ip and port number when the peer device is connected to the brand new ip and port number, and cancel the initial ip and port number;
the integration module is used for integrating the first real-time data, the second real-time data and the third real-time data to obtain target real-time data transmitted by the opposite-end equipment;
the step of integrating the first real-time data, the second real-time data and the third real-time data by the integration module to obtain the target real-time data transmitted by the opposite terminal device includes:
analyzing the first real-time data, the second real-time data and the third real-time data to obtain a first data set, a second data set and a third data set;
calculating the target matching degree of each subdata in the first data set, the second data set and the third data set based on the reference characteristics of the target real-time data;
counting and extracting target subdata with the target matching degree greater than or equal to a preset matching degree to obtain a first matching data list;
grading the target subdata in the first matching data list according to a preset matching degree interval to obtain parameters of each grade;
determining weight values corresponding to all levels of parameters according to data fusion requirements;
determining the authenticity of the corresponding target subdata in each grading result according to the weight value corresponding to each grade of parameter;
calculating the data accuracy of each grading result based on the weight value corresponding to the parameter in each grading result and the authenticity of the target subdata;
comparing the weight value corresponding to the parameter in each grading result with the data accuracy, retaining the first grading result with the weight value more than or equal to the data accuracy, and rejecting the second grading result with the weight value less than the data accuracy;
acquiring first target subdata contained in a first grading result;
calculating the proportion of the first target subdata in the first data set, the second data set and the third data set respectively;
based on the calculated proportion, deleting useless data in the first data set, the second data set and the third data set to obtain processed first real-time data, second real-time data and third real-time data;
and performing data integration on the processed first real-time data, the processed second real-time data and the processed third real-time data to obtain target real-time data transmitted by the opposite-end equipment.
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