CN109194416B

CN109194416B - Information transmission method and device, computer equipment and storage medium

Info

Publication number: CN109194416B
Application number: CN201810958528.8A
Authority: CN
Inventors: 徐唐生
Original assignee: Ping An Technology Shenzhen Co Ltd
Current assignee: Ping An Technology Shenzhen Co Ltd
Priority date: 2018-08-22
Filing date: 2018-08-22
Publication date: 2022-06-07
Anticipated expiration: 2038-08-22
Also published as: CN109194416A

Abstract

The invention discloses an information transmission method, an information transmission device, computer equipment and a storage medium, wherein the information transmission method comprises the following steps executed by an information acquisition end: acquiring an information acquisition task; calling a built-in information acquisition tool, and acquiring channel state information corresponding to at least one channel antenna of a network card deployed on an information acquisition end in an acquisition duration according to acquisition frequency; acquiring information generation time, and storing each channel state information and information generation time corresponding to the channel state information as a state information file in an associated manner; and sending the state information file to an information processing end through a secure file transmission protocol. The information transmission method can send the channel state information acquired by the information acquisition end to the information processing end through the communication link, so that the channel state information can be automatically transmitted, and the information transmission efficiency is improved.

Description

Information transmission method and device, computer equipment and storage medium

Technical Field

The present invention relates to the field of signal processing, and in particular, to an information transmission method and apparatus, a computer device, and a storage medium.

Background

CSI (Channel State Information) belongs to physical layer Information in a wireless communication protocol. The CSI of the physical layer is mainly used to optimize the wireless network, and it is generally difficult to acquire the data. And the network card firmware program corresponding to the wireless network card needs to be modified to acquire the specific data of the physical layer, and the specific wireless network card firmware program needs to be supported by a specific operating system driver and a kernel.

In recent years, Intel and Atheros network card suppliers process part of network card firmware programs and related organizations open corresponding software development packages, so that network card open source driving programs in a Linux system and a win system can be modified, and channel state information of part of wireless network cards is acquired by using a debugging mode. A tool CSITOOL for acquiring CSI information based on a Linux platform is commonly used at present, and CSI of an Intel 5300 wireless network card can be acquired. The existing obtained CSI is manually transmitted to the information processing terminal after being collected by the information collecting terminal, and the transmission efficiency is low. How to improve the transmission efficiency of the CSI becomes an urgent problem to be solved.

Disclosure of Invention

The embodiment of the invention provides an information transmission method, an information transmission device, computer equipment and a storage medium, and aims to solve the problem of low transmission efficiency of current CSI.

An information transmission method comprises the following steps executed by an information acquisition end:

acquiring an information acquisition task, wherein the information acquisition task comprises acquisition frequency and acquisition duration;

calling a built-in information acquisition tool, and acquiring channel state information corresponding to at least one channel antenna of a network card deployed on an information acquisition end in an acquisition duration according to acquisition frequency;

acquiring information generation time, and storing each channel state information and information generation time corresponding to the channel state information as a state information file in an associated manner;

and sending the state information file to the information processing end through a security file transmission protocol so that the information processing end obtains a channel quality evaluation result based on the state information file.

An information transmission device, includes the information acquisition end, and the information acquisition end includes:

the acquisition task module is used for acquiring an information acquisition task, and the information acquisition task comprises acquisition frequency and acquisition duration;

the acquisition state information module is used for calling a built-in information acquisition tool and acquiring channel state information corresponding to at least one channel antenna of a network card arranged on the information acquisition end within the acquisition time according to the acquisition frequency;

the information file storage module is used for acquiring information generation time and storing each channel state information and information generation time corresponding to the channel state information into a state information file in an associated manner;

and the information file sending module is used for sending the state information file to the information processing terminal through a security file transmission protocol so that the information processing terminal can obtain a channel quality evaluation result based on the state information file.

A computer device comprising a memory, a processor and a computer program stored in said memory and executable on said processor, said processor implementing the steps of the above-mentioned information transmission method when executing said computer program.

A computer-readable storage medium, which stores a computer program that, when being executed by a processor, carries out the steps of the above-mentioned information transmission method.

An information transmission method is characterized by comprising the following steps executed by an information processing end:

receiving a state information file sent by an information acquisition end through a security file transmission protocol, wherein the state information file comprises channel state information corresponding to at least one channel antenna and a corresponding time identifier;

creating a signal-to-noise ratio variation trend graph corresponding to each channel antenna according to the time identifier corresponding to each channel state information;

and acquiring a channel quality evaluation result based on the signal-to-noise ratio variation trend graph corresponding to each channel antenna.

An information transmission apparatus includes an information processing side including:

the receiving information file module is used for receiving a state information file sent by the information acquisition end through a security file transmission protocol, wherein the state information file comprises channel state information corresponding to at least one channel antenna and a corresponding time identifier;

a change trend graph creating module for creating a signal-to-noise ratio change trend graph corresponding to each channel antenna according to the time identifier corresponding to each channel state information;

and the acquisition evaluation result module is used for acquiring a channel quality evaluation result based on the signal-to-noise ratio variation trend chart corresponding to each channel antenna.

A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the information transmission method when executing the computer program.

A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the above-mentioned information transmission method.

According to the information transmission method, the information transmission device, the computer equipment and the storage medium, the information acquisition end is used for transmitting the acquired channel state information processed to the production state information file to the information processing end through the communication link, so that the information processing end can acquire the channel quality evaluation result, the channel state information is automatically transmitted, manual transmission is avoided, and the information transmission efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic diagram of an application environment of an information transmission method according to an embodiment of the present invention;

FIG. 2 is a flow chart of a method for transmitting information according to an embodiment of the present invention;

fig. 3 is a signal-to-noise ratio trend chart corresponding to each channel antenna of the information transmission method according to an embodiment of the present invention;

FIG. 4 is another flow chart of a method for transmitting information according to an embodiment of the present invention;

FIG. 5 is another flow chart of a method for transmitting information according to an embodiment of the present invention;

FIG. 6 is another flow chart of a method for transmitting information according to an embodiment of the present invention;

FIG. 7 is another flow chart of a method for transmitting information according to an embodiment of the present invention;

FIG. 8 is a diagram of an information delivery apparatus according to an embodiment of the present invention;

FIG. 9 is a schematic diagram of a computer device in an embodiment of the invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The information transmission method provided by the embodiment of the invention can be applied to the application environment shown in fig. 1, wherein the information acquisition terminal is communicated with the information processing terminal through a network. The information acquisition end is provided with an information acquisition tool for acquiring the CSI tool, and the information acquisition tool comprises but is not limited to various personal computers, notebook computers, tablet computers and the like. The information processing terminal can be realized by an independent server or a server cluster consisting of a plurality of servers.

The information transmission method comprises the following steps executed by an information acquisition end:

and acquiring an information acquisition task, wherein the information acquisition task comprises acquisition frequency and acquisition time.

And calling a built-in information acquisition tool, and acquiring channel state information corresponding to at least one channel antenna of the network card deployed on the information acquisition terminal in the acquisition time according to the acquisition frequency.

And acquiring information generation time, and storing each channel state information and the information generation time corresponding to the channel state information as a state information file in an associated manner.

And sending the state information file to the information processing terminal through a security file transmission protocol so that the information processing terminal obtains a channel quality evaluation result based on the state information file.

The information transmission method also comprises the following steps executed by the information processing end:

and receiving a state information file sent by an information acquisition end through a security file transmission protocol, wherein the state information file comprises channel state information corresponding to at least one channel antenna and a corresponding time identifier.

And creating a signal-to-noise ratio variation trend graph corresponding to each channel antenna according to the time identifier corresponding to each channel state information.

In an embodiment, as shown in fig. 2, an information transmission method is provided, which is described by taking an example that the method is applied to an information acquisition end and an information processing end in fig. 1, and includes the following steps:

s11, the information acquisition end acquires an information acquisition task, wherein the information acquisition task comprises acquisition frequency and acquisition time.

The Information acquisition task is a task of acquiring Channel State Information (CSI) according to an acquisition frequency and an acquisition duration, and the acquisition frequency is a frequency of acquiring the CSI, specifically, a frequency of acquiring the CSI in a unit time, which may be understood as a time interval. The acquisition duration is the duration of each acquisition of CSI. For example, in the acquisition task, the acquisition frequency is once per 0.1 second, the time interval is 0.1 second, and the acquisition duration is 1 second, that is, CSI is acquired once per 0.1 second within the acquisition duration of 1 second.

In step S11, the information collection end may execute a locally set real-time information collection task or a timing information collection task, or may execute an information collection task sent by the information processing end, so as to improve the flexibility of the information collection end to obtain the information collection task, so as to meet the requirement of the information processing end to obtain the channel state information to be processed.

And S12, the information acquisition end calls a built-in information acquisition tool, and channel state information corresponding to at least one channel antenna of the network card deployed on the information acquisition end in the acquisition duration is acquired according to the acquisition frequency.

The Channel State Information (CSI) is a channel attribute of the communication link, and describes a fading factor of a signal on each transmission path, that is, a value of each element in the channel gain moment H, such as signal Scattering (Scattering), environmental fading (fading), and distance fading (power fading) information. The CSI may adapt the communication system to current channel conditions, providing guarantees for high reliability, high rate communications in a multi-antenna system.

In step S12, the information acquisition end may acquire CSI of the locally deployed network card according to the acquisition frequency and the acquisition duration through the information acquisition tool, so as to provide an evaluation basis for the subsequent information processing end to evaluate the channel quality of the channel.

And S13, the information acquisition end acquires information generation time and stores each channel state information and the information generation time corresponding to the channel state information into a state information file in an associated mode.

And the information generation time is the system time corresponding to the CSI acquired by the information acquisition terminal each time. The state information file is a file including CSI and information generation time. The time stamp is a stamp indicating the CSI information generation time, and records the information generation time of each CSI.

In step S13, the information collection end carries a time identifier for the status information file, which is beneficial to subsequently continue the time identifier of each status information file to sequence the status information files according to time, so that the information collection end analyzes each status information file according to time sequence.

Specifically, the time identifier may be used as a part of the file name of the status information file in a text form, so that the subsequent information processing terminal can read the status information file in time sequence according to the time identifier in the file name.

And S14, the information acquisition end sends the state information file to the information processing end through a security file transmission protocol, so that the information processing end obtains a channel quality evaluation result based on the state information file.

The SFTP (Secure File Transfer Protocol) can be applied to both ends of an SFTP client (which can be regarded as an information acquisition end in this embodiment) and an SFTP server (which can be regarded as an information processing end in this embodiment), and an ssh (Secure shell) Protocol is used as a Protocol for transmitting FTP (File Transfer Protocol) data through a Secure data channel. The SSH protocol is a protocol specially used for providing security for remote login session and other network services, and the information leakage problem in the remote management process can be effectively prevented by using the SSH protocol.

By using SSH protocol, FTP data transmitted between all SFTP clients and the SFTP server can be encrypted, and DNS spoofing and IP spoofing can be prevented; the method can also compress the transmitted data, accelerate the transmission speed and provide a safe channel for the FTP. For example, the Linux system is attached with an application tool support packet supporting the SSH protocol, so that the information collection side and the information processing side can be installed with the Linux system, and information processing is performed by the Linux system, so as to avoid the need to additionally install the application tool support packet supporting the SSH protocol.

The reason for using the SFTP protocol as a communication link is that the traditional FTP does not consider a security mechanism in terms of transport mechanism and implementation principle, since it transmits data, user account number and user password in the clear on the network, which can be easily intercepted by others. Furthermore, FTP is vulnerable to "man-in-the-middle" attack modalities. The so-called man-in-the-middle attack mode is that man-in-the-middle impersonates a real server to receive data transmitted to the server by a client, and then impersonates the client to transmit the data to the real server. A serious problem arises when the data transfer between the server and the client is modified by a "man-in-the-middle".

In step S14, for safety, an SFTP communication link is used between the information collection end and the information processing end as a communication link for transmitting the state information file carrying the CSI and the corresponding information generation time, which can effectively ensure the safety and reliability in the CSI transmission process. The information acquisition terminal stores the channel state information as a state information file and then sends the state information file to the information processing terminal, so that the channel state information is favorably formed into a file and stored locally, and the corresponding state information file is conveniently searched subsequently.

In steps S11 to S14, the information collection end obtains channel state information corresponding to at least one channel antenna of the information collection task collection network card, records the generation time of the channel state information as a time identifier into a state file generated by the channel state information, and sends the state file to the information processing end through a secure file transfer protocol, so that the function of automatically transmitting the channel state information can be realized, manual transmission is not required, transmission automation is improved, and time delay caused by manual transmission is reduced.

And S21, the information processing end receives a state information file sent by the information acquisition end through a security file transmission protocol, wherein the state information file comprises channel state information corresponding to at least one channel antenna and a corresponding time identifier.

The SFTP (Secure File Transfer Protocol) is applied to both ends of an SFTP client (which may be regarded as an information acquisition end in this embodiment) and an SFTP server (which may be regarded as an information processing end in this embodiment), and an ssh (Secure shell) Protocol is used as a Protocol for transmitting FTP (File Transfer Protocol) data through a Secure data channel. The SSH protocol is a protocol specially used for providing security for remote login session and other network services, and the information leakage problem in the remote management process can be effectively prevented by using the SSH protocol.

The channel antenna is an antenna mounted on a network card, and commercially available network cards are generally equipped with at least two channel antennas. A channel antenna is a converter which converts a guided wave propagating on a network card transmission line into an electromagnetic wave propagating in free space or vice versa for transmitting or receiving electromagnetic waves in a radio device. It can be understood that the channel state information is a channel property when the electromagnetic wave is transmitted in all the channel antennas, that is, each channel state information includes channel state information corresponding to at least one channel antenna.

In step S21, the information processing end may obtain the channel state information through the secure file transfer protocol, so that the information processing end can obtain the CSI in time for analysis, thereby avoiding manual transmission of the CSI by a person and improving the degree of automation of obtaining the CSI.

And S22, the information processing end creates a signal-to-noise ratio change trend graph corresponding to each channel antenna according to the time identification corresponding to each channel state information.

The time mark is a mark for explaining the information generation time and is used for recording the information generation time of each CSI.

The snr trend graph is a graph showing the ratio of the signal state to the ambient noise when each channel antenna in the multi-antenna system transmits and receives information, as shown in fig. 3. The signal-to-noise ratio variation trend graph is generated by a matlab tool installed at an information processing end, and the matlab tool can read a channel state information source file stored in a DAT format in a state information file, so that the signal-to-noise ratio variation trend graph is generated. The process of generating the signal-to-noise ratio change trend graph does not need manual drawing, and the trend graph can be rapidly generated by reading the channel state information source file stored in the DAT format through an MATLAB tool, so that the channel quality can be evaluated in time. The information processing end can adapt to the current channel condition by drawing the signal-to-noise ratio change trend graph, and provides guarantee for high-reliability and high-speed communication in a multi-antenna system.

In step S22, the information processing end may extract the channel state information corresponding to each channel antenna recorded in the channel state information, and form a signal-to-noise ratio variation trend graph according to each channel state information, so that an evaluator may conveniently perform channel quality evaluation on a channel where each channel antenna is located.

And S23, the information processing end obtains a channel quality evaluation result based on the signal-to-noise ratio change trend graph corresponding to each channel antenna.

The signal-to-noise ratio variation trend graph is a ratio variation graph showing the signal state of each channel antenna in the multi-antenna system when transmitting and receiving information to the ambient noise.

The channel estimation result is the result of estimating the channel quality obtained after processing the signal-to-noise ratio variation trend graph in the wireless communication system.

In particular, the channel antennas are decisive for wireless communication, so that channel quality of channel state information is generally required to be evaluated in an actual wireless communication system. In practice, there are many ways to represent the channel quality of the channel state information, typical methods are signal-to-noise ratio (SNR) or signal-to-interference-and-noise ratio (SINR). The channel quality is typically evaluated using signal-to-noise ratio estimation techniques.

The relationship between channel bandwidth and channel capacity is represented by the shannon formula: where C is the channel capacity, W is the channel width, N is the noise power, S is the signal power, and S/N represents the signal-to-noise ratio. The physical significance of the formula is that the improvement of the S/N ratio can increase the channel capacity, namely, the channel with high S/N ratio can bear more information, and the channel quality is good. As shown in fig. 3, the channel quality of channel antenna B is better than that of channel antenna a, and channel antenna B can carry more wireless information in the same environment.

In step S23, the information acquisition end can intuitively know whether the average snr corresponding to each channel antenna is higher than the snr threshold in the wireless communication environment by drawing the snr trend graph corresponding to each channel antenna. And if the average signal-to-noise ratio of the channel where the channel antenna is located is higher than the signal-to-noise ratio threshold value, the channel quality of the channel where the channel antenna is located is normal.

In steps S21 to S23, the information processing end receives the status information files sent by the information collecting end through the secure file transfer protocol, and generates a signal-to-noise ratio trend graph correspondingly based on the channel status information and the time identifier in each status information file. Evaluators can intuitively acquire the channel quality of each wireless channel through the signal-to-noise ratio change trend graph, and the communication system is made to adapt to the current channel conditions, so that guarantee is provided for high-reliability and high-speed communication in the multi-antenna system.

Steps S11 to S23 provide embodiments of a related information transmission method, and an information acquisition end sends a production state information file obtained by processing the acquired channel state information to an information processing end through a communication link, so that the information processing end obtains a channel quality evaluation result, automatic transmission of the channel state information is achieved, manual transmission is avoided, and efficiency of information transmission is improved. The information processing terminal receives the state information files sent by the information acquisition terminal through a security file transmission protocol, and correspondingly generates a signal-to-noise ratio change trend graph based on the channel state information and the time identification in each state information file. Evaluators can intuitively acquire the channel quality of each wireless channel through the signal-to-noise ratio change trend graph, and the communication system is made to adapt to the current channel conditions, so that guarantee is provided for high-reliability and high-speed communication in the multi-antenna system. Evaluators can intuitively acquire the channel quality of each wireless channel through the signal-to-noise ratio change trend graph, and the communication system is made to adapt to the current channel conditions, so that guarantee is provided for high-reliability and high-speed communication in the multi-antenna system.

In an embodiment, as shown in fig. 4, before step S11, that is, before the step of acquiring the information acquisition task by the information acquisition end, the information transmission method further includes the following steps:

s101, the information acquisition end sends a connection request to the information processing end, wherein the connection request comprises an information acquisition end ID.

The connection request is a request for establishing a secure file transfer protocol link initiated by the information acquisition end to the information processing end, and the request comprises information acquisition end IDs for distinguishing different information acquisition ends. The information collector ID includes, but is not limited to, a collector IP or a collector MAC address, and is not limited herein.

In step S101, the information acquisition end may initiate a connection request for establishing an SFTP communication link to the information processing end through the network, and subsequently send channel state information to the information acquisition end based on the communication link. In practical application, a plurality of information acquisition terminals may initiate connection requests to the information processing terminal, and each information acquisition terminal should carry its own information acquisition terminal ID when initiating a connection request, so that the information processing terminal can distinguish the information acquisition terminals through the information acquisition terminal IDs.

And S102, the information acquisition end receives the first public key returned by the information processing end, and stores the first public key and the ID of the information processing end in an associated manner.

The first public key is a public key in a first key pair generated by the information processing terminal. The information processing side ID is an identifier for distinguishing different information processing sides, including but not limited to a processing side IP or a processing side MAC address, and the like, and is not limited herein.

In step S102, the information collection end may perform associated storage on the first public key of the information processing end and the information processing end ID, so as to facilitate subsequent decryption of the encrypted file sent by the information processing end corresponding to the information processing end ID through the first public key.

S103, the information acquisition end configures a second key pair corresponding to the ID of the information acquisition end, wherein the second key pair comprises a second public key and a second private key.

The second key pair is a key pair randomly generated at one side of the information acquisition end and comprises a second public key and a second private key. The information collection end ID is an identifier for distinguishing different information collection ends, including but not limited to a collection end IP or a collection end MAC address, and is not limited herein.

In step S103, after receiving the first public key fed back by the information processing terminal, the information collecting terminal may randomly generate a second key pair through the key pair generation tool, so as to encrypt the CSI sent by the information collecting terminal, thereby enhancing the security during the information transmission process.

And S104, the information acquisition terminal stores the second private key and the ID of the information processing terminal in an associated manner, sends the second public key to the information processing terminal corresponding to the ID of the information processing terminal, and establishes a secure file transfer protocol link with the information processing terminal.

The second private key is a private key part in a second key pair generated by the information acquisition end, and similarly, the second public key is a public key part in the second key pair generated by the information acquisition end. The information processing side ID is an identifier for distinguishing different information processing sides, including but not limited to a processing side IP or a processing side MAC address, and the like, and is not limited herein.

The SFTP (Secure File Transfer Protocol) is applied to both ends of an SFTP client (which may be regarded as an information acquisition end in this embodiment) and an SFTP server (which may be regarded as an information processing end in this embodiment), and adopts an ssh (Secure shell) Protocol as a Protocol for transmitting FTP (File Transfer Protocol) data through a Secure data channel. The SSH protocol is a protocol specially used for providing security for remote login session and other network services, and the problem of information leakage in the remote management process can be effectively prevented by using the SSH protocol.

In step S104, the information collection end may store the second private key and the processing end ID in an associated manner, so that after the CSI is subsequently encrypted by using the second private key to form an encrypted file, the encrypted file is sent to the information processing end corresponding to the information processing end ID associated with the second private key, so that the information processing end may decrypt the encrypted file by using the second public key obtained in the process of establishing the secure file transfer protocol link, so as to obtain the decrypted CSI.

In the embodiment provided in steps S101 to S104, the information acquisition end establishes a secure file transfer protocol link with the information processing end by sending the connection request, which is beneficial to transferring the state information file between the subsequent information acquisition end and the information processing end through the communication link, and enhances the information security during the transfer process.

In an embodiment, as shown in fig. 5, in step S11, that is, the information acquisition end acquires the information acquisition task, the method specifically includes the following steps:

s111, the information acquisition end acquires a broadcast acquisition task, wherein the broadcast acquisition task comprises acquisition frequency, acquisition duration, an information processing end ID and a target identifier.

The broadcast acquisition task is an acquisition task sent by an Information processing terminal in a broadcast manner, and specifically is a task for acquiring Channel State Information (CSI) by an Information acquisition terminal corresponding to a target identifier specified in current system time. The acquisition frequency is a frequency for acquiring the CSI, specifically, the number of times the CSI is acquired per unit time, which may be understood as a time interval. The acquisition duration is the duration of acquisition for acquiring the CSI.

The information processing side ID is an identifier for distinguishing different information processing sides, including but not limited to a processing side IP or a processing side MAC address, and the like, and is not limited herein. The target identifier is an information acquisition end ID of a transmission object (i.e., a specific information acquisition end) specified by the broadcast acquisition task by the information processing end.

In step S111, the information acquisition end may receive a broadcast acquisition task transmitted in a broadcast manner from the information processing end in real time during the working process, and process the broadcast acquisition task. The information acquisition end can simultaneously process the broadcast acquisition task issued by the information processing end when processing the local task, thereby improving the applicability and the real-time performance of the information transmission method and meeting the requirements of different scenes.

And S112, if the ID of the information acquisition end is consistent with the target identification, the information acquisition end executes a step of calling a built-in information acquisition tool and acquiring channel state information corresponding to at least one channel antenna of the network card deployed on the information acquisition end within the acquisition time according to the acquisition frequency.

The ID of the information collection end is an identifier for distinguishing different information collection ends, including but not limited to a collection end IP or a collection end MAC address, which is not limited herein. The target identifier is an information acquisition end ID of a transmission object (i.e., a specific information acquisition end) specified by the broadcast acquisition task by the information processing end.

In step 112, when the information acquisition end acquires the broadcast acquisition task sent by the information processing end in step S111, and the target identifier carried in the broadcast acquisition task is consistent with the ID of the information acquisition end, it can be determined that the broadcast acquisition task is sent by the information acquisition end to the local computer. At this time, the information acquisition end corresponding to the information acquisition end ID may execute step S112 according to the acquisition frequency and the acquisition duration carried in the broadcast acquisition task, so as to obtain the channel state information corresponding to the at least one channel antenna.

Alternatively, the first and second electrodes may be,

s113, the information acquisition end acquires a timing acquisition task, wherein the timing acquisition task comprises timing trigger time, acquisition frequency and acquisition duration.

The timing acquisition task is a task which is created locally by the information acquisition end and used for acquiring the CSI regularly. Specifically, the information acquisition end can create a task of acquiring the timed acquisition by locally creating a crontab instruction, so that an information acquisition tool can be automatically called at each timed trigger time to acquire the CSI, and a state information file named by time is generated.

In particular, the crontab instruction is commonly found in Unix and Unix-like operating systems for setting up instructions to be executed periodically. The command is read from a standard input device and stored in a "crontab" file for later reading and execution. Usually, the crontab instruction is activated by a daemon process, and the crontab is often run in the background, and can periodically check whether a predetermined job needs to be executed.

In step S113, the information acquisition end may automatically invoke the information acquisition tool to acquire CSI at each timing trigger time by creating a crottab command, so as to avoid recording a CSI status information file by manual transmission, and improve the degree of automation and transmission efficiency.

S114, the information acquisition end acquires the current time of the information acquisition end, if the current time of the information acquisition end reaches the timing trigger time, a built-in information acquisition tool is called, and according to the acquisition frequency, the step of acquiring channel state information corresponding to at least one channel antenna of a network card deployed on the information acquisition end within the acquisition time length is performed.

The timing trigger time is the time for executing the timing acquisition task each time set by the information acquisition end.

In step S114, the information collection end may keep the crontab command corresponding to the timing collection task running in the background, and check whether there is a predetermined job to be executed every minute. When the current time of the information acquisition end reaches the timing trigger time recorded in the crontab instruction, the information acquisition end calls a built-in information acquisition tool to acquire channel state information.

In the embodiment provided in steps S111 to S114, the information acquisition end may acquire CSI in real time through the broadcast acquisition task and send the CSI to the information processing end, or may acquire CSI regularly through the timing acquisition task and send the CSI to the information processing end, so as to enhance the flexibility of the information transmission method; and in the information transmission process, the CSI is not required to be transmitted manually, so that the information transmission efficiency is improved.

In an embodiment, as shown in fig. 6, before step S21, that is, before the step of the information processing side receiving the status information file sent by the information collecting side through the secure file transfer protocol, the information transfer method further includes the following steps:

s201, an information processing end receives a connection request sent by an information acquisition end, wherein the connection request comprises an information acquisition end ID.

The connection request is a request for establishing a secure file transfer protocol link, which is initiated from an information acquisition end to an information processing end, where the request includes an information acquisition end ID for distinguishing different information acquisition ends, and the information acquisition end ID includes, but is not limited to, an acquisition end IP or an acquisition end MAC address, and is not limited herein.

In step S201, the information acquisition end may initiate a connection request for establishing an SFTP communication link to the information processing end through the network, and subsequently send channel state information to the information acquisition end based on the communication link. In practical application, a plurality of information acquisition terminals may initiate connection requests to the information processing terminal, and each information acquisition terminal should carry its own information acquisition terminal ID when initiating a connection request, so that the information processing terminal can distinguish the information acquisition terminals through the information acquisition terminal IDs.

S202, the information processing end configures a first key pair corresponding to the ID of the information acquisition end, wherein the first key pair comprises a first public key and a first private key.

The first key pair is a key pair randomly generated at the information processing side and comprises a first public key and a first private key. The information collection end ID is an identifier for distinguishing different information collection ends, including but not limited to a collection end IP or a collection end MAC address, and is not limited herein.

In step S202, after receiving the connection request sent by the information acquisition end, the information processing end may quickly generate a first key pair through the existing key pair for encrypting the information sent by the information processing end, so as to enhance the security in the information transmission process.

S203, the information processing terminal stores the first private key and the ID of the information acquisition terminal in an associated mode, and sends the first public key of the first secret key pair to the information acquisition terminal corresponding to the ID of the information acquisition terminal.

The first private key is a private key part in a first key pair generated by the information processing side, and similarly, the first public key is a public key part in the first key pair generated by the information processing side. The information collection end ID is an identifier for distinguishing different information collection ends, including but not limited to a collection end IP or a collection end MAC address, and is not limited herein.

In step S203, the information processing end may perform the association storage of the first private key and the collection end ID, so that after the subsequent information processing end encrypts the information collection task sent to the information collection end by the first private key to form an encrypted file, the encrypted file is sent to the information collection end corresponding to the information collection end ID associated with the first private key. The information processing terminal further sends the first public key of the first key pair to the information acquisition terminal corresponding to the information acquisition terminal ID, so that the information acquisition terminal can decrypt the encrypted file sent from the information processing terminal through the first public key (only the first public key can decrypt the encrypted file encrypted by the first private key).

And S204, the information processing terminal receives the second public key sent by the information acquisition terminal, stores the second public key and the ID of the information acquisition terminal in an associated manner, and establishes a secure file transfer protocol link with the information acquisition terminal.

And the second public key is a public key part in a second key pair generated by the information acquisition end. The ID of the information collection end is an identifier used for distinguishing different information collection ends, including but not limited to a collection end IP or a collection end MAC address, which is not limited herein.

The SFTP (Secure File Transfer Protocol) Protocol includes two ends, namely an SFTP client (which may be regarded as an information acquisition end in this embodiment) and an SFTP server (which may be regarded as an information processing end in this embodiment), and adopts an ssh (Secure shell) Protocol as a Protocol for transmitting FTP (File Transfer Protocol) data through a Secure data channel. The SSH protocol is a protocol specially used for providing security for remote login session and other network services, and the information leakage problem in the remote management process can be effectively prevented by using the SSH protocol.

In the embodiment provided in steps S201 to S204, the information processing terminal establishes a secure file transfer protocol link by receiving the connection request sent by the information acquisition terminal and the information processing terminal, which is beneficial to transferring the state information file between the subsequent information acquisition terminal and the information processing terminal through the communication link, and enhances the information security during the transfer process.

In an embodiment, as shown in fig. 7, in step S23, that is, the information processing end obtains the channel quality evaluation result based on the signal-to-noise ratio variation trend chart corresponding to each channel antenna, the method specifically includes the following steps:

and S231, acquiring the average signal-to-noise ratio of each channel antenna in a preset time period based on the signal-to-noise ratio change trend graph corresponding to each channel antenna.

The channel state information (CSI for short) is a channel attribute of a communication link, and the CSI can enable a communication system to adapt to the current channel condition, thereby providing guarantee for high-reliability and high-rate communication in a multi-antenna system. It is understood that a channel antenna is each antenna constituting a multi-antenna system.

The snr trend graph, as shown in fig. 3, is a graph showing the ratio of the signal state of each antenna transmitting and receiving information to the ambient noise in the multi-antenna system. The average signal-to-noise ratio is the signal-to-noise ratio per unit time.

Specifically, the information processing end may test the average signal-to-noise ratio of the unit time according to the time condition, in this embodiment, the time interval of the test may be set to five seconds, and the average signal-to-noise ratios in every five seconds are accumulated and averaged, so that the average signal-to-noise ratio corresponding to each time interval may be obtained. Preferably, in order to improve the accuracy of the average signal-to-noise ratio, the information processing end may set a reasonable signal-to-noise ratio interval, and filter out signal-to-noise ratios that do not belong to the reasonable interval when calculating the average signal-to-noise ratio.

In step S231, the information processing end may obtain an average signal-to-noise ratio of each channel antenna in unit time through the signal-to-noise ratio variation trend graph, so as to provide a comparison basis for channel quality evaluation of a channel where each channel antenna is located.

And S232, if the average signal-to-noise ratio of the channel antenna in the preset time period is higher than the signal-to-noise ratio threshold, judging that the channel quality evaluation result of the channel antenna in the preset time period is normal.

Where the signal-to-noise threshold is the lowest signal-to-noise ratio that maintains a normal channel quality. The channel quality is the transmission quality of the channel on which each antenna transmits wireless information.

In step S232, if the average snr of the channel antenna in the preset time period is higher than the snr threshold, it indicates that the channel where the channel antenna is located can keep the minimum requirement for normal wireless information transmission, thereby ensuring the fluency of channel transmission. On the contrary, if the average signal-to-noise ratio of the channel antenna in the preset time period is not higher than the signal-to-noise ratio threshold, it indicates that the channel where the channel antenna is located cannot meet the minimum requirement for normally transmitting the wireless information.

In steps S231 to S232, the information processing end can evaluate the channel quality of the channel in which each antenna is located by analyzing the signal-to-noise ratio trend graph and the average signal-to-noise ratio of the channel in which each antenna is located.

In the information transmission method provided by this embodiment, the information acquisition end sends the production state information file after processing the acquired channel state information to the information processing end through the communication link, so that the information processing end obtains the channel quality evaluation result, automatic transmission of the channel state information is realized, manual transmission is avoided, and the efficiency of information transmission is improved.

Furthermore, the information acquisition end establishes a secure file transmission protocol link with the information processing end by sending the connection request, so that the subsequent state information file transmission between the information acquisition end and the information processing end through the communication link is facilitated, and the information security in the transmission process is enhanced; the information acquisition end can acquire the CSI in real time through the broadcast acquisition task and send the CSI to the information processing end, and can also acquire the CSI regularly through the regular acquisition task and send the CSI to the information processing end, so that the flexibility of the information transmission method is enhanced; in addition, the CSI is not required to be manually transmitted in the information transmission process, so that the information transmission efficiency is improved; the information processing end establishes a secure file transmission protocol link by receiving the connection request sent by the information acquisition end and the information processing end, so that the subsequent state information file is transmitted between the information acquisition end and the information processing end through the communication link, and the information security in the transmission process is enhanced; the information processing end can evaluate the channel quality of the channel where each antenna is located by analyzing the signal-to-noise ratio trend graph and the average signal-to-noise ratio of the channel where each antenna is located.

It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.

In one embodiment, fig. 8 shows a schematic block diagram of an information transmission apparatus corresponding to one-to-one information transmission methods. The information transmission device comprises an information acquisition terminal 10 and an information processing terminal 20. As shown in fig. 8, the information collecting terminal 10 includes a task acquiring module 11, a status acquiring module 12, an information file storing module 13, and an information file sending module 14. The implementation functions of the acquisition task module 11, the acquisition state information module 12, the information file storage module 13, and the information file sending module 14 correspond to steps S11 to S14 corresponding to the information transmission method in the embodiment, respectively.

And the acquisition task module 11 is used for acquiring an information acquisition task, wherein the information acquisition task comprises acquisition frequency and acquisition duration.

The state information acquiring module 12 is configured to call a built-in information acquisition tool, and acquire, according to the acquisition frequency, channel state information corresponding to at least one channel antenna of the network card deployed on the information acquisition end within the acquisition duration.

And a storage information file module 13, configured to acquire information generation time, and store each piece of channel state information and information generation time association corresponding to the channel state information as a state information file.

And the information file sending module 14 is configured to send the state information file to the information processing end through a secure file transfer protocol, so that the information processing end obtains a channel quality evaluation result based on the state information file.

Preferably, the information transmission apparatus further comprises a sending connection request module 101, a receiving first public key module 102, a configuring second key pair module 103, and an establishing communication link module 104.

A connection request sending module 101, configured to send a connection request to the information processing terminal, where the connection request includes an information acquisition terminal ID.

The first public key receiving module 102 is configured to receive a first public key returned by the information processing end, and store the first public key and the information processing end ID in an associated manner.

And a second key pair configuring module 103, configured to configure a second key pair corresponding to the information acquisition end ID, where the second key pair includes a second public key and a second private key.

And the communication link establishing module 104 is configured to associate and store the second private key and the information processing end ID, send the second public key to the information processing end corresponding to the information processing end ID, and establish a secure file transfer protocol link between the information processing end and the second private key.

Preferably, the acquiring acquisition task module 11 includes an acquiring real-time task unit 111 and an acquiring channel state information unit 112, or an acquiring timing task unit 113 and an acquiring system time unit 114.

And the real-time task acquiring unit 111 is used for acquiring a broadcast acquisition task, wherein the broadcast acquisition task comprises acquisition frequency, acquisition duration, an information processing terminal ID and a target identifier.

The channel state information acquiring unit 112 is configured to execute a step of calling a built-in information acquisition tool if the ID of the information acquisition end is consistent with the target identifier, and acquiring channel state information corresponding to at least one channel antenna of the network card deployed on the information acquisition end within an acquisition duration according to the acquisition frequency.

Alternatively, the first and second liquid crystal display panels may be,

and the acquiring timing task unit 113 is configured to acquire a timing acquisition task, where the timing acquisition task includes timing trigger time, acquisition frequency, and acquisition duration.

And the system time acquiring unit 114 is configured to acquire the current time of the information acquisition end, execute a step of calling a built-in information acquisition tool if the current time of the information acquisition end reaches the timing trigger time, and acquire, according to the acquisition frequency, channel state information corresponding to at least one channel antenna of a network card deployed on the information acquisition end within the acquisition time.

As shown in fig. 7, the information processing terminal 20 included in the information transmission apparatus includes a received information file module 21, a created trend graph module 22, and an obtained evaluation result module 23. The implementation functions of the information file receiving module 21, the trend graph creating module 22 and the evaluation result obtaining module 23 correspond to steps S21 to S23 corresponding to the information transmission method in the embodiment, respectively.

And the information file receiving module 21 is configured to receive a state information file sent by the information acquisition end through a secure file transfer protocol, where the state information file includes channel state information corresponding to at least one channel antenna and a corresponding time identifier.

And a trend graph creating module 22, configured to create a signal-to-noise ratio trend graph corresponding to each channel antenna according to the time identifier corresponding to each channel state information.

And an obtaining evaluation result module 23, configured to obtain a channel quality evaluation result based on the signal-to-noise ratio variation trend chart corresponding to each channel antenna.

Preferably, the information processing terminal 20 included in the information transmission apparatus further includes a connection receiving request module 201, a first key pair configuring module 202, a first public key sending module 203, and a second public key receiving module 204.

A connection request receiving module 201, configured to receive a connection request sent by an information acquisition end, where the connection request includes an information acquisition end ID;

a first key pair configuration module 202, configured to configure a first key pair corresponding to the ID of the information acquisition end, where the first key pair includes a first public key and a first private key;

a first public key sending module 203, configured to store the first private key and the information acquisition end ID in an associated manner, and send the first public key of the first key pair to the information acquisition end corresponding to the information acquisition end ID;

and the second public key receiving module 204 is configured to receive a second public key sent by the information acquisition end, store the second public key in association with the ID of the information acquisition end, and establish a secure file transfer protocol link with the information acquisition end.

Preferably, the obtain evaluation result module 23 includes an obtain average signal-to-noise ratio unit 231 and a quality evaluation result unit 232.

The average snr obtaining unit 231 is configured to obtain an average snr of each channel antenna within a preset time period based on the snr trend graph corresponding to each channel antenna.

The quality evaluation result unit 232 is configured to determine that the channel quality evaluation result of the channel antenna in the preset time period is normal if the average signal-to-noise ratio of the channel antenna in the preset time period is higher than the signal-to-noise ratio threshold.

For specific limitations of the information transmission device, reference may be made to the above limitations of the information transmission method, which are not described herein again. The modules in the information transmission device can be wholly or partially realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.

In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as shown in fig. 9. The computer device includes a processor, a memory, a network interface, and a database connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operating system and the computer program to run on the non-volatile storage medium. The database of the computer device is used for storing data related to the information transmission method. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement an information transmission method.

In one embodiment, a computer device is provided, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program: acquiring an information acquisition task, wherein the information acquisition task comprises acquisition frequency and acquisition duration; calling a built-in information acquisition tool, and acquiring channel state information corresponding to at least one channel antenna of a network card deployed on an information acquisition end in an acquisition duration according to acquisition frequency; acquiring information generation time, and storing each channel state information and information generation time corresponding to the channel state information as a state information file in an associated manner; and sending the state information file to the information processing terminal through a security file transmission protocol so that the information processing terminal obtains a channel quality evaluation result based on the state information file.

In one embodiment, before the step of obtaining the information collection task, the processor, when executing the computer program, further performs the steps of: sending a connection request to an information processing terminal, wherein the connection request comprises an information acquisition terminal ID; receiving a first public key returned by the information processing terminal, and storing the first public key and the ID of the information processing terminal in an associated manner; configuring a second key pair corresponding to the ID of the information acquisition terminal, wherein the second key pair comprises a second public key and a second private key; and the second private key and the ID of the information processing terminal are stored in a correlation manner, the second public key is sent to the information processing terminal corresponding to the ID of the information processing terminal, and a secure file transfer protocol link between the second private key and the information processing terminal is established.

In one embodiment, the obtaining of the information collection task includes: acquiring a broadcast acquisition task, wherein the broadcast acquisition task comprises acquisition frequency, acquisition duration, an information processing terminal ID and a target identifier; if the ID of the information acquisition end is consistent with the target identification, executing a step of calling a built-in information acquisition tool, and acquiring channel state information corresponding to at least one channel antenna of a network card deployed on the information acquisition end within acquisition duration according to acquisition frequency; or acquiring a timing acquisition task, wherein the timing acquisition task comprises timing trigger time, acquisition frequency and acquisition duration; and acquiring the current time of the information acquisition end, executing and calling a built-in information acquisition tool if the current time of the information acquisition end reaches the timing trigger time, and acquiring channel state information corresponding to at least one channel antenna of a network card deployed on the information acquisition end within the acquisition time according to the acquisition frequency.

In one embodiment, a computer device is provided, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program: receiving a state information file sent by an information acquisition end through a security file transmission protocol, wherein the state information file comprises channel state information corresponding to at least one channel antenna and a corresponding time identifier; creating a signal-to-noise ratio variation trend graph corresponding to each channel antenna according to the time identifier corresponding to each channel state information; and acquiring a channel quality evaluation result based on the signal-to-noise ratio variation trend graph corresponding to each channel antenna.

In an embodiment, before the step of receiving the status information file sent by the information acquisition end through the secure file transfer protocol, the processor executes the computer program to further implement the following steps: receiving a connection request sent by an information acquisition end, wherein the connection request comprises an information acquisition end ID; configuring a first key pair corresponding to the ID of the information acquisition terminal, wherein the first key pair comprises a first public key and a first private key; the first private key and the ID of the information acquisition end are stored in an associated mode, and the first public key of the first key pair is sent to the information acquisition end corresponding to the ID of the information acquisition end; and receiving a second public key sent by the information acquisition end, storing the second public key and the ID of the information acquisition end in a correlation manner, and establishing a secure file transfer protocol link with the information acquisition end.

In an embodiment, the obtaining the channel quality estimation result based on the snr trend graph corresponding to each channel antenna includes: acquiring the average signal-to-noise ratio of each channel antenna in a preset time period based on the signal-to-noise ratio variation trend graph corresponding to each channel antenna; and if the average signal-to-noise ratio of the channel antenna in the preset time period is higher than the signal-to-noise ratio threshold, the channel quality evaluation result of the channel antenna in the preset time period is normal.

In an embodiment, a computer-readable storage medium is provided, on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of: acquiring an information acquisition task, wherein the information acquisition task comprises acquisition frequency and acquisition duration; calling a built-in information acquisition tool, and acquiring channel state information corresponding to at least one channel antenna of a network card deployed on an information acquisition end in an acquisition duration according to acquisition frequency; acquiring information generation time, and storing each channel state information and information generation time corresponding to the channel state information as a state information file in an associated manner; and sending the state information file to the information processing terminal through a security file transmission protocol so that the information processing terminal obtains a channel quality evaluation result based on the state information file.

In an embodiment, the computer program when executed by the processor further performs the steps of, prior to the step of obtaining the information gathering task: sending a connection request to an information processing terminal, wherein the connection request comprises an information acquisition terminal ID; receiving a first public key returned by the information processing terminal, and storing the first public key and the ID of the information processing terminal in an associated manner; configuring a second key pair corresponding to the ID of the information acquisition terminal, wherein the second key pair comprises a second public key and a second private key; and storing the second private key and the ID of the information processing terminal in an associated manner, sending the second public key to the information processing terminal corresponding to the ID of the information processing terminal, and establishing a secure file transfer protocol link between the second private key and the information processing terminal.

In one embodiment, the obtaining of the information collection task includes: acquiring a broadcast acquisition task, wherein the broadcast acquisition task comprises acquisition frequency, acquisition duration, an information processing end ID and a target identifier; if the ID of the information acquisition end is consistent with the target identification, executing a step of calling a built-in information acquisition tool and acquiring channel state information corresponding to at least one channel antenna of a network card deployed on the information acquisition end in an acquisition time length according to acquisition frequency; or acquiring a timing acquisition task, wherein the timing acquisition task comprises timing trigger time, acquisition frequency and acquisition duration; and acquiring the current time of the information acquisition end, executing and calling a built-in information acquisition tool if the current time of the information acquisition end reaches the timing trigger time, and acquiring channel state information corresponding to at least one channel antenna of a network card deployed on the information acquisition end within the acquisition time according to the acquisition frequency.

In an embodiment, a computer-readable storage medium is provided, on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of: receiving a state information file sent by an information acquisition end through a security file transmission protocol, wherein the state information file comprises channel state information corresponding to at least one channel antenna and a corresponding time identifier; creating a signal-to-noise ratio variation trend graph corresponding to each channel antenna according to the time identifier corresponding to each channel state information; and acquiring a channel quality evaluation result based on the signal-to-noise ratio variation trend graph corresponding to each channel antenna.

In an embodiment, before the step of receiving the status information file sent by the information collecting end through the secure file transfer protocol, the computer program when executed by the processor further implements the steps of: receiving a connection request sent by an information acquisition end, wherein the connection request comprises an information acquisition end ID; configuring a first key pair corresponding to the ID of the information acquisition terminal, wherein the first key pair comprises a first public key and a first private key; the first private key and the ID of the information acquisition end are stored in an associated mode, and the first public key of the first key pair is sent to the information acquisition end corresponding to the ID of the information acquisition end; and receiving a second public key sent by the information acquisition end, storing the second public key and the ID of the information acquisition end in a correlation manner, and establishing a secure file transfer protocol link with the information acquisition end.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.

Claims

1. An information transmission method is characterized by comprising the following steps executed by an information acquisition end:

sending a connection request to the information processing terminal, wherein the connection request comprises an information acquisition terminal ID;

receiving a first public key returned by the information processing terminal, and storing the first public key and the ID of the information processing terminal in an associated manner;

configuring a second key pair corresponding to the ID of the information acquisition terminal, wherein the second key pair comprises a second public key and a second private key;

the second private key and the ID of the information processing terminal are stored in an associated mode, the second public key is sent to the information processing terminal corresponding to the ID of the information processing terminal, and a secure file transfer protocol link between the second private key and the information processing terminal is established;

calling a built-in information acquisition tool, and acquiring channel state information corresponding to at least one channel antenna of a network card deployed on the information acquisition end in the acquisition time length according to the acquisition frequency;

acquiring information generation time, and storing each channel state information and the information generation time corresponding to the channel state information in an associated manner as a state information file;

and sending the state information file to an information processing end through a security file transmission protocol so that the information processing end obtains a channel quality evaluation result based on the state information file.

2. The information transmission method according to claim 1, wherein the acquiring of the information collection task includes:

acquiring a broadcast acquisition task, wherein the broadcast acquisition task comprises acquisition frequency, acquisition duration, an information processing terminal ID and a target identifier;

if the ID of the information acquisition end is consistent with the target identification, executing the step of calling a built-in information acquisition tool, and acquiring channel state information corresponding to at least one channel antenna of a network card deployed on the information acquisition end within the acquisition duration according to the acquisition frequency;

alternatively, the first and second electrodes may be,

acquiring a timing acquisition task, wherein the timing acquisition task comprises timing trigger time, acquisition frequency and acquisition duration;

and acquiring the current time of an information acquisition end, executing the built-in information acquisition tool if the current time of the information acquisition end reaches the timing trigger time, and acquiring channel state information corresponding to at least one channel antenna of a network card deployed on the information acquisition end within the acquisition time length according to the acquisition frequency.

3. An information transmission method is characterized by comprising the following steps executed by an information processing end:

receiving a connection request sent by an information acquisition end, wherein the connection request comprises an information acquisition end ID;

configuring a first key pair corresponding to the ID of the information acquisition terminal, wherein the first key pair comprises a first public key and a first private key;

the first private key and the ID of the information acquisition end are stored in an associated mode, and a first public key of the first secret key pair is sent to the information acquisition end corresponding to the ID of the information acquisition end;

receiving a second public key sent by an information acquisition end, storing the second public key and the ID of the information acquisition end in an associated manner, and establishing a secure file transfer protocol link with the information acquisition end;

4. The information transmission method according to claim 3, wherein the obtaining the channel quality estimation result based on the snr variation trend graph corresponding to each of the channel antennas comprises:

acquiring an average signal-to-noise ratio of each channel antenna in a preset time period based on a signal-to-noise ratio variation trend graph corresponding to each channel antenna;

and if the average signal-to-noise ratio of the channel antenna in a preset time period is higher than a signal-to-noise ratio threshold value, the channel quality evaluation result of the channel antenna in the preset time period is normal.

5. An information transmission device, characterized by, includes the information acquisition end, the information acquisition end includes:

a connection request sending module, configured to send a connection request to the information processing terminal, where the connection request includes an information acquisition terminal ID;

the first public key receiving module is used for receiving a first public key returned by the information processing terminal and storing the first public key and the ID of the information processing terminal in an associated manner;

a second key pair configuration module, configured to configure a second key pair corresponding to the information acquisition end ID, where the second key pair includes a second public key and a second private key;

the communication link establishing module is used for storing the second private key and the ID of the information processing terminal in an associated manner, sending the second public key to the information processing terminal corresponding to the ID of the information processing terminal and establishing a secure file transfer protocol link between the information processing terminal and the communication link establishing module;

the acquisition state information module is used for calling a built-in information acquisition tool and acquiring channel state information corresponding to at least one channel antenna of a network card deployed on the information acquisition end within the acquisition time according to the acquisition frequency;

the information file storage module is used for acquiring information generation time and storing each piece of channel state information and the information generation time corresponding to the channel state information into a state information file in an associated manner;

and the information file sending module is used for sending the state information file to an information processing end through a security file transmission protocol so that the information processing end obtains a channel quality evaluation result based on the state information file.

6. An information transmission apparatus, comprising an information processing side, the information processing side comprising:

the device comprises a connection request receiving module, a connection request receiving module and a connection request transmitting module, wherein the connection request receiving module is used for receiving a connection request transmitted by an information acquisition end, and the connection request comprises an information acquisition end ID;

a first key pair configuration module, configured to configure a first key pair corresponding to the information acquisition end ID, where the first key pair includes a first public key and a first private key;

the first public key sending module is used for storing the first private key and the ID of the information acquisition end in an associated manner and sending the first public key of the first secret key pair to the information acquisition end corresponding to the ID of the information acquisition end;

the receiving second public key module is used for receiving a second public key sent by the information acquisition end, storing the second public key and the ID of the information acquisition end in an associated manner and establishing a secure file transfer protocol link with the information acquisition end;

the receiving information file module is used for receiving a state information file sent by an information acquisition end through a secure file transmission protocol, wherein the state information file comprises channel state information corresponding to at least one channel antenna and a corresponding time identifier;

a change trend graph creating module, configured to create a signal-to-noise ratio change trend graph corresponding to each channel antenna according to the time identifier corresponding to each channel state information;

7. Computer arrangement comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor realizes the steps of the information transmission method according to any of claims 1 to 4 when executing the computer program.

8. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the information transmission method according to any one of claims 1 to 4.