Information data transmission method and system based on computer network

Abstract

The invention relates to the technical field of data transmission, in particular to an information data transmission method and system based on a computer network, and the method comprises the steps: obtaining a passing point and a plurality of interference regions of each transmission; obtaining an obstacle area, a propagable area and a power amplification demand coefficient of the propagable area; obtaining an end node sequence of current information spreading; obtaining a jumping point number sequence of current information propagation, and obtaining an initial conflict probability of a current transmission end node according to convergence of the jumping point number sequence; correcting the end node sequence to obtain a propagation path of current information propagation; and performing power distribution according to the propagable area through which the propagation path passes and the power amplification demand coefficient of the propagable area to realize information data transmission. According to the method, the influence of a fixed interference source in a self-organizing network transmission environment on a transmission path is solved, the purpose of planning the transmission path to avoid an interference source area is achieved, and the data transmission security is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of data transmission, and particularly to an information data transmission method and system based on a computer network. Background Art

[0002] A Self-Organizing Network (SON) is a network architecture that can automatically configure, manage, optimize, and repair itself. Without manual intervention, it can provide stable communication services through the automatic cooperation between network devices. Self-organizing networks are mainly used in wireless communication systems and have extensive applications, especially in the fields of mobile communication and industrial Internet of Things (IoT).

[0003] When used in the industrial Internet of Things, the mobile ad-hoc network usually has an open network structure, making it vulnerable to external interference, resulting in the inability to guarantee the transmission reliability of the end-to-end path from the source node to the destination node. In the industrial environment, there are often electromagnetic and radio frequency interferences, as well as power supply noise when industrial equipment is turned on and off, and common-mode interference during operation, all of which will affect the self-organizing network transmission of the industrial Internet of Things. The characteristic of the transmission in the self-organizing network is multi-hop transmission within a limited range, that is, the data is transmitted from the transmitting end to the receiving end through the paths of other devices in the self-organizing network as hop points. If the nodes transmit at the same frequency, co-channel interference will occur, resulting in data transmission failure. Summary of the Invention

[0004] The present invention provides an information data transmission method and system based on a computer network to solve existing problems.

[0005] The information data transmission method and system based on a computer network of the present invention adopt the following technical solutions: An embodiment of the present invention provides an information data transmission method based on a computer network, which includes the following steps: Obtain the passing points and signal information of each transmission in the regional map of the industrial park; Merge the interfered passing points screened by using the signal information to obtain several interference regions in the regional map; Divide the interference regions by using the attenuation of the signal strength in the signal information of each transmission in each interference region to obtain obstacle regions, propagable regions, and the power increase demand coefficient of the propagable regions; Perform path planning to avoid the obstacle regions for the current information propagation to obtain the end node sequence of the current information propagation; Obtain the sequence of the number of available hop points of the current information propagation according to the end node sequence of the current information propagation, and obtain the initial conflict probability of the current transmission end node according to the convergence of the sequence of the number of available hop points. Correct the end - node sequence using the initial conflict probability of the current information dissemination to obtain the dissemination path of the current information dissemination. According to the propagable regions passed by the dissemination path of the current information dissemination and their power increase demand coefficients, perform power allocation for each end - node in the dissemination path of the current information dissemination to achieve information data transmission.

[0006] Preferably, obtaining the passing points and signal information for each transmission in the regional map of the industrial park includes: Use the building blueprint of the industrial park as the regional map of the industrial park. Read the data transmission log of the industrial park, record the positions of the sending end - node and the receiving end - node in the regional map of the industrial park during each transmission in the historical information dissemination process, and mark the mid - point of the line connecting the positions of the sending end - node and the receiving end - node in the regional map of the industrial park as the passing point of this transmission. Obtain the transmission power of the sending end - node during each transmission from the data transmission log, as well as the signal strength and signal - to - noise ratio when the receiving end - node receives the signal. The transmission power of the sending end - node, the signal strength when the receiving end - node receives the signal, and the signal - to - noise ratio during each transmission constitute the signal information for each transmission.

[0007] Preferably, the specific steps for obtaining the interference regions include: According to the transmission power of the sending end - node, the signal strength when the receiving end - node receives the signal, and the signal - to - noise ratio in the signal information for each transmission, obtain the degree of interference at the passing point of each transmission; the degree of interference is directly proportional to the ratio of the transmission power of the sending end - node and the signal strength when the receiving end - node receives the signal, and inversely proportional to the signal - to - noise ratio when the receiving end - node receives the signal. Screen the degrees of interference at the passing points of all transmissions to obtain several interfered passing points. Perform region construction on the clusters obtained by clustering all the interfered passing points in the regional map to obtain several interference regions in the regional map.

[0008] Preferably, dividing the interference regions using the attenuation situation of the signal strength in the signal information for each transmission in each interference region to obtain the obstacle regions, propagable regions, and the power increase demand coefficients of the propagable regions includes: In the signal information for each transmission in each interference region, record the ratio of the transmission power of the sending end - node and the signal strength when the receiving end - node receives the signal as the signal attenuation amplitude for each transmission in each interference region. Record the average value of the signal attenuation amplitudes for all transmissions in each interference region as the signal obstruction degree of each interference region. Preset an interference threshold. Mark the interference area where the signal interference degree is greater than the interference threshold as an obstacle area, and mark the interference area where the signal interference degree is less than or equal to the interference threshold as a propagable area; Denote the inverse normalization value of the signal interference degree in the propagable area as the power increase demand coefficient of the propagable area.

[0009] Preferably, the specific steps for obtaining the end-node sequence of the current information propagation include: In the area map, regard each device as an end node, and regard the position of each device during the current information propagation as the position of each end node; If there is a direct connection in the topological structure network between two end nodes, record the degree of the two end nodes as 1, otherwise record it as 0; Construct a propagation network for the current information propagation according to the position of each end node and the degree between every two end nodes; Map the starting point and the ending point during the current information propagation into the propagation network of the current information propagation, and after performing path planning for the shortest path, record the sequence of end nodes passed from the starting point to the ending point as the end-node sequence of the current information propagation; The conditions that the connection of the shortest path needs to meet are: the degree between every two end nodes in the end-node sequence of the current information propagation is 1, and the passing points of a single transmission formed by these two end nodes are not in the obstacle area.

[0010] Preferably, the specific steps for obtaining the sequence of hop points for the current information propagation according to the end-node sequence of the current information propagation, and obtaining the initial conflict probability of the current transmission end node according to the convergence of the sequence of hop points include: Obtain the number of hop points of each end node in the end-node sequence of the current information propagation; Arrange the number of hop points of all end nodes in the end-node sequence of the current information propagation in the order in the end-node sequence of the current information propagation to obtain the sequence of hop points for the current information propagation; Denote the normalized result of the ratio of the maximum number of hop points to the minimum number of hop points in the sequence of hop points for the current information propagation as the initial conflict probability of the current transmission end node.

[0011] Preferably, the specific steps for obtaining the hop points include: Regard any one end node in the end-node sequence of the current information propagation as the target end node; In the propagation network of the current information propagation, except for all end nodes in the end-node sequence of the current information propagation, regard other end nodes with a degree less than 2 when connecting to the target end node as the hop points of the target end node.

[0012] Preferably, the specific steps for obtaining the propagation path of the current information propagation by correcting the end node sequence using the initial conflict probability of the current information propagation include: Preset a conflict threshold. If the initial conflict probability of the current information propagation is greater than or equal to the conflict threshold, in the sequence of the number of hop points available for the current information propagation, the end node corresponding to the minimum number of hop points in the end node sequence of the current information propagation is denoted as the conflict point in the end node sequence of the current information propagation. In the propagation network of the current information propagation, after changing the degree between the conflict point and the next end node in the end node sequence of the current information propagation to 0, perform path planning for the shortest path, which is denoted as the corrected end node sequence of the current information propagation. Obtain the corrected conflict probability of the current information propagation according to the corrected end node sequence of the current information propagation. Use the conflict threshold to judge the corrected conflict probability of the current information propagation until the corrected conflict probability of the current information propagation is less than the conflict threshold, and denote the corrected end node sequence of the current information propagation as the propagation path of the current information propagation.

[0013] Preferably, the specific steps for performing power allocation for each end node in the propagation path of the current information propagation according to the propagable area passed by the propagation path of the current information propagation and its power increase demand coefficient to achieve information data transmission include: Denote the combination formed by each end node and the next end node in the propagation path of the current information propagation as an end node pair. In the area graph, denote all the end nodes through which the connection line of the end node pair passes through the propagable area as the interfered end node pairs; obtain several interfered end node pairs in the propagation path of the current information propagation. Generate the prior power of each end node pair in the propagation path of the current information propagation through the self-organizing network. Denote the product of the prior power of each interfered end node pair in the propagation path of the current information propagation and the sum of the power increase demand coefficient of the propagable area passed by the interfered end node pair and 1 as the transmission power of each interfered end node pair in the propagation path of the current information propagation. Denote the prior power of each end node pair except the interfered end node pairs in the propagation path of the current information propagation as the transmission power of each end node pair in the propagation path of the current information propagation. Use the self-organizing network to implement information data transmission according to the transmission power of each end node pair and the transmission power of each interfered end node pair in the propagation path of the current information propagation. The present invention also provides an information data transmission system based on a computer network. The system includes a memory, a processor, and a computer program stored in the memory and running on the processor. When the processor executes the computer program, the steps of the above method are implemented.

[0014] The beneficial effects of the technical solution of the present invention are as follows: The present invention obtains the passing points and signal information of each transmission in the regional map of the industrial park; combines the disturbed passing points obtained by screening the signal information to obtain several interference regions in the regional map; screens the disturbed passing points through historical signal information to obtain the interference regions for dividing the regions that can be affected by fixed interference sources in the regional map; divides the interference regions by using the attenuation of the signal intensity in the signal information of each transmission in each interference region to obtain the obstacle regions, the propagable regions, and the power increase demand coefficient of the propagable regions; analyzes the interference intensities of different interference sources to classify the interference regions, obtaining the propagable regions and the non-propagable regions, and obtaining the prior weight power increase demand coefficient during power allocation according to the attenuation of the signal intensity caused by interference; performs path planning to avoid the obstacle regions for the current information transmission to obtain the end node sequence of the current information transmission; obtains the sequence of the number of hop points of the current information transmission according to the end node sequence of the current information transmission, and obtains the initial conflict probability of the current transmission end node according to the convergence of the sequence of the number of hop points; performs path planning to avoid the obstacle regions for the current information transmission, and analyzes the number of adjustable points of each end node in the end node sequence to reflect the response of the current end node sequence in the face of conflicts, thereby judging the feasibility of the propagation path formed by the current end nodes; corrects the end node sequence by using the initial conflict probability of the current information transmission to obtain the propagation path of the current information transmission; performs power allocation for each end node in the propagation path of the current information transmission according to the propagable regions passed by the propagation path of the current information transmission and their power increase demand coefficients to achieve information data transmission; analyzes the feasibility of the current propagation path to obtain the initial conflict probability, and adjusts the propagation path according to the initial conflict probability to finally obtain the propagation path of the current information transmission, and performs power adaptive allocation for each end node in the propagation path of the current information transmission, improving the information transmission quality in the face of different interference sources during information transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 This is a flowchart of the steps of the information data transmission method and system based on computer network according to the present invention. Specific embodiments

[0017] In order to further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following combines the accompanying drawings and preferred embodiments to detail the specific embodiments, structures, features and effects of the information data transmission method and system based on computer network proposed according to the present invention. In the following description, different "one embodiment" or "another embodiment" do not necessarily refer to the same embodiment. In addition, the specific features, structures or characteristics in one or more embodiments can be combined in any suitable form.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs.

[0019] The following specifically describes the specific solutions of the information data transmission method and system based on computer network provided by the present invention with reference to the accompanying drawings.

[0020] Please refer to Figure 1 , which shows a flowchart of the steps of the information data transmission method based on computer network provided by an embodiment of the present invention. The method includes the following steps: Step S001: Obtain the passing points and signal information of each transmission in the regional map of the industrial park.

[0021] It should be noted that the installation positions of the devices that need to be connected to the Internet of Things in the industrial park are not fixed. And because some common industrial devices in the park often need to be relocated, and some devices need to be connected to the monitoring system through the Internet of Things to realize the safety supervision of the devices. Therefore, in a complex industrial park, an ad hoc network is more suitable for computers to transmit information to each device. And there are often inductive loads such as motors in the industrial park. Inductive loads will generate electromagnetic interference when starting and running, thus reducing the information transmission between devices in the ad hoc network.

[0022] Furthermore, it should be noted that the inductive loads that generate interference in the industrial park usually have the characteristics of affecting a certain area and a fixed range. When two devices, as end nodes in the ad hoc network, realize data transmission, if they pass through the interference areas generated by these inductive loads, it will cause the attenuation and instability of the data signal intensity received by the receiving end. Therefore, in this embodiment, first, by collecting and analyzing the transmission paths and signal characteristics of the transmission signals when the devices are used as end nodes in the ad hoc network in historical signal transmissions, the passing points and signal information of each transmission of the end nodes are obtained in the regional map of the industrial park.

[0023] Preferably, the specific steps for obtaining the passing points and signal information of each transmission in the regional map of the industrial park include: Use the building blueprint of the industrial park as the regional map of the industrial park; Read the data transmission log of the industrial park, record the positions of the sending end node and the receiving end node in the regional map of the industrial park during each transmission in the process of historical information dissemination, and mark the midpoint of the line connecting the positions of the sending end node and the receiving end node in the regional map of the industrial park as the passing point of this transmission; It should be noted that in one information dissemination, the information to be transmitted needs to be transmitted from the starting point to the ending point. Based on the characteristics of devices as end nodes in the ad hoc network, there are multiple transmissions between end nodes in one information dissemination process, and the receiving end node of each transmission serves as the sending end node of the next transmission.

[0024] Obtain the transmission power of the sending end node during each transmission from the data transmission log, as well as the signal strength and signal-to-noise ratio when the receiving end node receives the signal. The transmission power of the sending end node, the signal strength when the receiving end node receives the signal, and the signal-to-noise ratio during each transmission constitute the signal information of each transmission.

[0025] It should be noted that most of the devices incorporated into the Internet of Things in the industrial park are mobile devices. Therefore, the positions of the same device in the regional map are different when it serves as an end node to send or receive data in different transmission processes.

[0026] Step S002: Combine and utilize the passing points affected by interference screened by the signal information to obtain several interference regions in the regional map; divide the interference regions according to the attenuation of the signal strength in the signal information of each transmission in each interference region to obtain the obstacle region, the propagable region, and the power increase demand coefficient of the propagable region.

[0027] It should be noted that the signal propagation in the industrial park will be interfered by fixed interference sources, resulting in abnormal signal information of the passing points during each transmission if the passing points are within the interference range of the fixed interference sources. Therefore, the fixed interference sources cause obvious regionality of the passing points in the regional map of the industrial park. Therefore, in this embodiment, the passing points affected by interference are screened by using the signal information, and the passing points affected by interference are combined to obtain several interference regions in the regional map.

[0028] Preferably, the specific steps for combining and utilizing the passing points affected by interference screened by the signal information to obtain several interference regions in the regional map include: According to the transmission power of the sending end node, the signal strength when the receiving end node receives the signal, and the signal-to-noise ratio in the signal information of each transmission, obtain the degree of interference of the passing point of each transmission; Screen the degrees of interference of the passing points of all transmissions to obtain several passing points affected by interference; After clustering all the interfered passing points, regional construction is carried out on the clusters in the regional map to obtain several interference regions in the regional map.

[0029] Specifically, according to the transmission power of the sending end node, the signal strength and the signal-to-noise ratio when the receiving end node receives the signal in the signal information of each transmission, the specific method for obtaining the interference degree of the passing point of each transmission is as follows: It should be noted that the self-organizing network will allocate the transmission power according to factors such as the distance between the end nodes. The stronger the transmission power, the stronger the received signal strength. However, if the transmission power is stronger, the signal strength received by the receiving end node is lower, and the signal-to-noise ratio is higher, it indicates that this transmission is more likely to be interfered.

[0030] Obtain the interference degree of the passing point of each transmission. The interference degree is directly proportional to the ratio of the transmission power of the sending end node and the signal strength when the receiving end node receives the signal, and inversely proportional to the signal-to-noise ratio when the receiving end node receives the signal.

[0031] Among them, the ratio of the transmission power of the sending end node and the signal strength when the receiving end node receives the signal represents the adaptive adjustment situation and the receiving situation of the self-organizing network for the transmission power of the sending end node during this transmission. The larger the transmission power, the more the self-organizing network judges that this transmission requires anti-interference, so a larger transmission power is allocated. And the smaller the received signal strength, the greater the interference situation. And the signal-to-noise ratio is used to measure the signal quality. The smaller the signal-to-noise ratio, the more noise and the stronger the interference.

[0032] Furthermore, the specific method for screening the interference degree of the passing points of all transmissions to obtain several interfered passing points is as follows: After normalizing the maximum and minimum values of the interference degree of the passing points of all transmissions, a preset interference threshold is set. The passing points corresponding to the normalization results of all the interference degrees that are greater than the interference threshold are recorded as the interfered passing points.

[0033] Among them, the maximum and minimum value normalization is a well-known prior art and will not be elaborated in this embodiment. The interference threshold is described as 0.68 in this embodiment. Other embodiments can adopt other values, and this embodiment does not make specific limitations.

[0034] Furthermore, the specific method for carrying out regional construction on the clusters obtained after clustering all the interfered passing points in the regional map to obtain several interference regions in the regional map is as follows: In the area map, the K-means algorithm is used to cluster all the disturbed passing points to obtain several clusters. The convex hull area formed by all the disturbed passing points in each cluster is denoted as an interference area in the area map. Similarly, several interference areas in the area map are obtained.

[0035] It should be noted that the interference intensity of the interference sources in the interference areas is different. Some interference areas can transmit data by increasing the transmission power, that is, the propagable area, while some interference areas have too high interference intensity, resulting in information loss even when the transmission power is increased, that is, the obstacle area. Therefore, in this embodiment, all the interference areas are divided according to the attenuation of the signal intensity in the signal information transmitted each time in the interference areas, and the obstacle area, the propagable area, and the power increase demand coefficient of the propagable area are obtained.

[0036] Preferably, the specific steps of using the attenuation of the signal intensity in the signal information transmitted each time in each interference area to divide the interference area and obtain the obstacle area, the propagable area, and the power increase demand coefficient of the propagable area are as follows: According to the attenuation of the signal intensity in the signal information transmitted all times in each interference area, obtain the signal obstruction degree of each interference area; Use the signal obstruction degree to divide the obstacle area and the propagable area, and obtain the power increase demand coefficient of the propagable area.

[0037] Specifically, the specific method of obtaining the signal obstruction degree of each interference area according to the attenuation of the signal intensity in the signal information transmitted all times in each interference area is as follows: In the signal information transmitted each time in each interference area, the ratio of the transmission power of the sending end node to the signal intensity when the receiving end node receives the signal is denoted as the signal attenuation amplitude of each transmission in each interference area; The average value of the signal attenuation amplitudes of all transmissions in each interference area is denoted as the signal obstruction degree of each interference area.

[0038] Further, the specific method of using the signal obstruction degree to divide the obstacle area and the propagable area and obtain the power increase demand coefficient of the propagable area is as follows: Preset an obstruction threshold. The interference area with a signal obstruction degree greater than the obstruction threshold is denoted as the obstacle area, and the interference area with a signal obstruction degree less than or equal to the obstruction threshold is denoted as the propagable area; The inverse proportional normalization value of the signal obstruction degree of the propagable area is denoted as the power increase demand coefficient of the propagable area.

[0039] It should be noted that in this embodiment, the obstruction threshold is described by taking 0.5 as an example. Other embodiments can adopt other values, and this embodiment does not make specific limitations.

[0040] Step S003: Perform path planning to avoid obstacle areas for the current information dissemination, and obtain the end-node sequence of the current information dissemination; obtain the number-of-hop points sequence of the current information dissemination according to the end-node sequence of the current information dissemination, and obtain the initial conflict probability of the current transmission end-node according to the convergence of the number-of-hop points sequence.

[0041] It should be noted that the ad hoc network is a topology network. Therefore, during one information dissemination process, multiple transmissions between end-nodes are required, and each transmission needs to pass through several topology networks composed of devices. Therefore, for the known starting point and ending point of the current information dissemination, path planning is usually based on the shortest propagation path to realize the signal propagation in the ad hoc network.

[0042] Preferably, the specific method for performing path planning to avoid obstacle areas for the current information dissemination and obtaining the end-node sequence of the current information dissemination is as follows: Obtain the positions and connection conditions of each end-node in the current area map to form the propagation network of the current information dissemination; Perform path planning to avoid obstacle areas for the current information dissemination, and obtain the end-node sequence of the current information dissemination.

[0043] Specifically, the specific method for obtaining the positions and connection conditions of each end-node in the current area map to form the propagation network of the current information dissemination is as follows: In the area map, regard each device as an end-node, and regard the position of each device during the current information dissemination as the position of each end-node; If there is a direct connection in the topology network between two end-nodes, record the degree of the two end-nodes as 1, otherwise record it as 0; Construct the propagation network of the current information dissemination according to the position of each end-node and the degree between every two end-nodes.

[0044] Furthermore, the specific method for performing path planning to avoid obstacle areas for the current information dissemination and obtaining the end-node sequence of the current information dissemination is as follows: Map the starting point and ending point during the current information dissemination to the propagation network of the current information dissemination, and after performing path planning for the shortest path, record the sequence of end-nodes passed from the starting point to the ending point as the end-node sequence of the current information dissemination; The conditions that the connection of the shortest path needs to meet are: the degree between every two end-nodes in the end-node sequence of the current information dissemination is 1, and the passing points of a transmission formed by these two end-nodes are not in the obstacle area.

[0045] It should be noted that when performing path planning for the shortest path in this embodiment, the sum of the degrees between every two end nodes is used as the length of the path.

[0046] It should be noted that multiple information propagations often occur simultaneously in the ad-hoc network. At this time, the end node sequences of multiple information propagations may share the same end node, resulting in information conflicts in the ad-hoc network. Therefore, the ad-hoc network usually applies, for example, a time division multiple access system (TDMA) to divide transmission time slots for different information propagations to avoid conflicts. When the transmission time slots divided when multiple information propagations share the same end node simultaneously are not sufficient to complete the propagation of all data in a short time, it will lead to conflicts and transmission delays in the ad-hoc network. At this time, the ad-hoc network needs to reconstruct the transmission path according to the hop points in the propagation path. Then, if the number of hop points of a certain end node in the propagation path is insufficient, the ad-hoc network cannot reconstruct the transmission path, resulting in the ad-hoc network being unable to solve the problems of conflicts and transmission delays; Therefore, in this embodiment, the hop points of each end node in the end node sequence of the current information propagation are analyzed to obtain the hop point number sequence of the current information propagation, and then the initial conflict probability of the current transmission end node is analyzed by analyzing the hop point number sequence of the current information propagation.

[0047] Preferably, the specific steps of obtaining the hop point number sequence of the current information propagation according to the end node sequence of the current information propagation and obtaining the initial conflict probability of the current transmission end node according to the convergence of the hop point number sequence include: Obtain the number of hop points of each end node in the end node sequence of the current information propagation; According to the number of hop points of each end node in the end node sequence of the current information propagation, obtain the hop point number sequence of the current information propagation; Obtain the initial conflict probability of the current transmission end node according to the convergence of the hop point number sequence.

[0048] Specifically, the specific method of obtaining the number of hop points of each end node in the end node sequence of the current information propagation is: Denote any end node in the end node sequence of the current information propagation as the target end node; In the propagation network of the current information propagation, except for all the end nodes in the end node sequence of the current information propagation, other end nodes with a degree less than 2 when connected to the target end node are denoted as the hop points of the target end node; Obtain the number of hop points of each end node in the end node sequence of the current information propagation; Arrange the number of hop points of all end nodes in the end node sequence of the current information propagation in the order in the end node sequence of the current information propagation to obtain the hop point number sequence of the current information propagation.

[0049] Further, the specific method for obtaining the initial conflict probability of the current transmission end node according to the convergence of the hop point number sequence is as follows: It should be noted that the number of hop points in the hop point number sequence of the current information propagation indicates the number of optional end nodes when reconstructing the path in case of a conflict. Therefore, the fewer the number of optional end nodes, the greater the convergence of the propagation path and the greater the probability of a conflict. Therefore, in this embodiment, based on the decrease of the minimum hop point number compared to the maximum hop point in the hop point number sequence, the convergence of the hop point number sequence is reflected.

[0050] Record the normalized result of the ratio of the maximum hop point number to the minimum hop point number in the hop point number sequence of the current information propagation as the initial conflict probability of the current transmission end node.

[0051] It should be noted that in this embodiment, the sigmoid function is used to normalize the ratio of the maximum hop point number to the minimum hop point number. Other embodiments can use other methods to achieve normalization, and this embodiment does not make specific limitations.

[0052] Step S004: Correct the end node sequence using the initial conflict probability of the current information propagation to obtain the propagation path of the current information propagation; according to the propagable area passed by the propagation path of the current information propagation and its power increase demand coefficient, perform power allocation for each end node in the propagation path of the current information propagation to achieve information data transmission.

[0053] Specifically, the specific method for correcting the end node sequence using the initial conflict probability of the current information propagation to obtain the propagation path of the current information propagation is as follows: Preset a conflict threshold. If the initial conflict probability of the current information propagation is greater than or equal to the conflict threshold, mark the end node corresponding to the minimum hop point number in the hop point number sequence of the current information propagation as the conflict point in the end node sequence of the current information propagation. In the propagation network of the current information propagation, after changing the degree between the conflict point and the next end node in the end node sequence of the current information propagation to 0, perform path planning for the shortest path, which is recorded as the corrected end node sequence of the current information propagation. Obtain the corrected conflict probability of the current information propagation according to the corrected end node sequence of the current information propagation. Use the conflict threshold to judge the correction conflict probability of the current information propagation. Until the correction conflict probability of the current information propagation is less than the conflict threshold, record the corrected end node sequence of the current information propagation as the propagation path of the current information propagation.

[0054] It should be noted that in this embodiment, the conflict threshold is described by taking 0.7 as an example. Other embodiments may adopt other values, and this embodiment does not make specific limitations.

[0055] It should be noted that when performing the current information propagation, the propagation path will pass through the propagable area. When performing power allocation, it is necessary to pre-enhance the power of this transmission passing through the propagable area.

[0056] Furthermore, according to the propagable area passed by the propagation path of the current information propagation and its power increase demand coefficient, the power allocation of each end node in the propagation path of the current information propagation is carried out. The specific steps for realizing information data transmission are as follows: Screen the end nodes in the propagation path of the current information propagation that pass through the propagable area to obtain several pairs of interfered end nodes in the propagation path of the current information propagation; According to the power increase demand coefficient of the propagable area passed by each pair of interfered end nodes, adjust the prior power of the pair of interfered end nodes to realize the power allocation of each end node in the propagation path of the current information propagation.

[0057] Specifically, the specific method for screening the end nodes in the propagation path of the current information propagation that pass through the propagable area to obtain several pairs of interfered end nodes in the propagation path of the current information propagation is as follows: Record the combination formed by each end node and the next end node in the propagation path of the current information propagation as a pair of end nodes; In the area graph, record all the end nodes whose connection line of the pair of end nodes passes through the propagable area as the pair of interfered end nodes; obtain several pairs of interfered end nodes in the propagation path of the current information propagation.

[0058] Furthermore, according to the power increase demand coefficient of the propagable area passed by each pair of interfered end nodes, the specific method for adjusting the preset power of the pair of interfered end nodes to realize the power allocation of each end node in the propagation path of the current information propagation is as follows: Generate the prior power of each pair of end nodes in the propagation path of the current information propagation through the self-organizing network; Record the product of the prior power of each pair of interfered end nodes in the propagation path of the current information propagation and the sum of the power increase demand coefficient of the propagable area passed by this pair of interfered end nodes and 1 as the transmission power of each pair of interfered end nodes in the propagation path of the current information propagation; Denote the prior power of each end - node pair in the propagation path of the current information propagation, except for the interfered end - node, as the transmission power of each end - node pair in the propagation path of the current information propagation. Based on the transmission power of each end - node pair in the propagation path of the current information propagation and the transmission power of each interfered end - node pair, use the ad - hoc network to realize the transmission of information data.

[0059] Another embodiment of the present invention provides an information data transmission system based on a computer network. The system includes a memory, a processor, and a computer program stored in the memory and running on the processor. When the processor executes the computer program, the above - mentioned method steps S001 to step S004 are realized.

[0060] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An information data transmission method based on a computer network, characterized in that, The method includes the following steps: Obtain the passing points and signal information of each transmission in the regional map of the industrial park; Merge the interfered passing points screened by using the signal information to obtain several interference regions in the regional map; Divide the interference regions by using the attenuation of the signal strength in the signal information of each transmission in each interference region to obtain the obstacle regions, the propagable regions, and the power increase demand coefficient of the propagable regions; Perform path planning to avoid the obstacle regions for the current information transmission to obtain the end node sequence of the current information transmission; Obtain the sequence of the number of hop points of the current information transmission according to the end node sequence of the current information transmission, and obtain the initial collision probability of the current transmission end node according to the convergence of the sequence of the number of hop points; Correct the end node sequence by using the initial collision probability of the current information transmission to obtain the propagation path of the current information transmission; Perform power allocation for each end node in the propagation path of the current information transmission according to the propagable regions passed by the propagation path of the current information transmission and their power increase demand coefficients to realize information data transmission.

2. The information data transmission method based on a computer network according to claim 1, characterized in that, The obtaining of the passing points and signal information of each transmission in the regional map of the industrial park includes: Take the building blueprint of the industrial park as the regional map of the industrial park; Read the data transmission log of the industrial park, record the positions of the sending end node and the receiving end node in the regional map of the industrial park during each transmission in the historical information transmission process, and mark the midpoint of the line connecting the positions of the sending end node and the receiving end node in the regional map of the industrial park as the passing point of this transmission; Obtain the transmission power of the sending end node during each transmission from the data transmission log, as well as the signal strength and signal-to-noise ratio when the receiving end node receives the signal, and form the signal information of each transmission with the transmission power of the sending end node, the signal strength when the receiving end node receives the signal, and the signal-to-noise ratio during each transmission.

3. The information data transmission method based on a computer network according to claim 1, characterized in that, The specific steps for obtaining the interference regions include: Obtain the interference degree of the passing point of each transmission according to the transmission power of the sending end node, the signal strength when the receiving end node receives the signal, and the signal-to-noise ratio in the signal information of each transmission; the interference degree is directly proportional to the ratio of the transmission power of the sending end node and the signal strength when the receiving end node receives the signal, and inversely proportional to the signal-to-noise ratio when the receiving end node receives the signal; Screen the interference degrees of the passing points of all transmissions to obtain several interfered passing points; Perform regional construction on the clusters obtained after clustering all the interfered passing points in the regional map to obtain several interference regions in the regional map.

4. The information data transmission method based on a computer network according to claim 1, characterized in that, The dividing of the interference regions by using the attenuation of the signal strength in the signal information of each transmission in each interference region to obtain the obstacle regions, the propagable regions, and the power increase demand coefficient of the propagable regions includes: Record the ratio of the transmission power of the sending end node and the signal strength when the receiving end node receives the signal in the signal information of each transmission in each interference region as the signal attenuation amplitude of each transmission in each interference region; Record the average value of the signal attenuation amplitudes of all transmissions in each interference region as the signal obstruction degree of each interference region; Preset an interference threshold. Mark the interference area where the signal interference degree is greater than the interference threshold as an obstacle area, and mark the interference area where the signal interference degree is less than or equal to the interference threshold as a propagable area; Denote the inverse normalization value of the signal interference degree in the propagable area as the power increase demand coefficient of the propagable area.

5. The information data transmission method based on a computer network according to claim 1, characterized in that, The specific steps for obtaining the end node sequence of the current information transmission include: In the area graph, regard each device as an end node, and regard the position of each device during the current information transmission as the position of each end node; If there is a direct connection in the topological structure network between two end nodes, denote the degree of the two end nodes as 1, otherwise denote it as 0; Construct a propagation network for the current information transmission according to the position of each end node and the degree between every two end nodes; Map the starting point and the ending point during the current information transmission into the propagation network of the current information transmission. After performing the shortest path planning, denote the sequence of end nodes passed from the starting point to the ending point as the end node sequence of the current information transmission; The condition that the connection of the shortest path needs to satisfy is: the degree between every two end nodes in the end node sequence of the current information transmission is 1, and the passing point of a single transmission formed by these two end nodes is not in the obstacle area.

6. The information data transmission method based on a computer network according to claim 1, characterized in that, The specific steps for obtaining the sequence of hop points for the current information transmission according to the end node sequence of the current information transmission, and obtaining the initial conflict probability of the current transmission end node according to the convergence of the sequence of hop points include: Obtain the number of hop points of each end node in the end node sequence of the current information transmission; Arrange the number of hop points of all end nodes in the end node sequence of the current information transmission in the order in the end node sequence of the current information transmission to obtain the sequence of hop points for the current information transmission; Denote the normalized result of the ratio of the maximum number of hop points to the minimum number of hop points in the sequence of hop points for the current information transmission as the initial conflict probability of the current transmission end node.

7. The information data transmission method based on a computer network according to claim 6, wherein, The specific steps for obtaining the hop points include: Regard any end node in the end node sequence of the current information transmission as the target end node; In the propagation network of the current information transmission, except for all end nodes in the end node sequence of the current information transmission, regard other end nodes with a degree less than 2 when connecting to the target end node as the hop points of the target end node.

8. The information data transmission method based on a computer network according to claim 1, wherein, The specific steps for correcting the end node sequence by using the initial conflict probability of the current information transmission to obtain the propagation path of the current information transmission include: Preset a conflict threshold. If the initial conflict probability of the current information transmission is greater than or equal to the conflict threshold, regard the end node corresponding to the minimum number of hop points in the sequence of hop points for the current information transmission in the end node sequence of the current information transmission as the conflict point in the end node sequence of the current information transmission; In the propagation network of the current information transmission, change the degree between the conflict point and the next end node in the end node sequence of the current information transmission to 0, and then perform the shortest path planning, which is denoted as the corrected end node sequence of the current information transmission; Obtain the correction conflict probability of the current information propagation according to the corrected end-node sequence of the current information propagation; Use the conflict threshold to judge the correction conflict probability of the current information propagation. Until the correction conflict probability of the current information propagation is less than the conflict threshold, record the corrected end-node sequence of the current information propagation as the propagation path of the current information propagation.

9. The information data transmission method based on a computer network according to claim 1, wherein, The specific acquisition steps for realizing information data transmission by performing power distribution for each end-node in the propagation path of the current information propagation according to the propagable area passed by the propagation path of the current information propagation and its power increase demand coefficient include: Record the combination formed by each end-node and the next end-node in the propagation path of the current information propagation as an end-node pair; In the area graph, record all the end-nodes through which the connection line of the end-node pair passes through the propagable area as the interfered end-node pairs; obtain several interfered end-node pairs in the propagation path of the current information propagation; Generate the prior power of each end-node pair in the propagation path of the current information propagation through the self-organizing network; Record the product of the prior power of each interfered end-node pair in the propagation path of the current information propagation and the sum of the power increase demand coefficient of the propagable area passed by the interfered end-node pair and 1 as the transmission power of each interfered end-node pair in the propagation path of the current information propagation; Record the prior power of each end-node pair except the interfered end-node pairs in the propagation path of the current information propagation as the transmission power of each end-node pair in the propagation path of the current information propagation; Realize the transmission of information data by using the self-organizing network according to the transmission power of each end-node pair and the transmission power of each interfered end-node pair in the propagation path of the current information propagation.

10. An information data transmission system based on a computer network, comprising a memory, a processor, and a computer program stored in the memory and running on the processor, wherein, When the processor executes the computer program, it realizes the steps of the information data transmission method based on the computer network according to any one of claims 1-9.

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