Network transmission system and method with transmission quality optimization function

Abstract

The invention relates to the field of network quality optimization, in particular to a network transmission system and method with a transmission quality optimization function, and the system comprises an information collection module which is used for obtaining terrain information, electromagnetic source information and weather information in real time; the interference analysis module comprises a terrain interference analysis unit and an electromagnetic interference analysis unit; the signal optimization module is used for calculating a comprehensive signal quality value according to the first influence value and the second influence value and adjusting the signal emission frequency according to the comprehensive signal quality value; according to the invention, in consideration of the fact that a plurality of buildings with different angles may exist in a signal propagation environment, and the signal intensity of a receiving end is influenced by conditions of penetration, reflection, diffraction and the like when the signal passes through the buildings, the precision of the first influence value obtained by calculation is higher than that of other calculation methods; and the calculation precision of the comprehensive signal quality value can be improved later.

Description

Technical Field

[0001] The present invention relates to the field of network quality optimization, and in particular to a network transmission system and method with a transmission quality optimization function. Background Art

[0002] When optimizing network transmission quality, it is necessary to consider the distance between the base station and the receiving end and the impact of surrounding buildings on signal quality, analyze the affected values of the signal based on these factors, and then adjust the signal transmission frequency and power accordingly to ensure the speed and stability of network transmission.

[0003] However, the complex buildings in cities can cause direct radiation, penetration, and reflection of signals, which has a complex impact on signal quality. The above calculation method does not take this into account, so the accuracy of the signal strength attenuation value calculated based on it is low, resulting in the adjustment of signal power and frequency not being able to adapt to actual conditions. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a network transmission system and method with a transmission quality optimization function, which solves the technical problems in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A network transmission system with a transmission quality optimization function, comprising:

[0007] An information acquisition module, which is used to obtain terrain information, electromagnetic source information, and weather information in real time;

[0008] An interference analysis module, comprising a terrain interference analysis unit and an electromagnetic interference analysis unit;

[0009] The terrain interference analysis unit is used to calculate the first impact value of the interference caused by the terrain of the target position to the target frequency signal according to the terrain information. , the first impact value Represents the signal strength attenuation ratio of the receiving end; the electromagnetic interference analysis unit is used to calculate the second impact value of the electromagnetic source at the target position on the target frequency signal based on the electromagnetic source information , the second impact value Indicates the strength of the target frequency signal received at the target location relative to the interference signals from all electromagnetic sources;

[0010] A signal optimization module is configured to optimize the signal according to the first impact value. and the second impact value Calculate the overall signal quality value , and adjust the signal transmission frequency accordingly.

[0011] Furthermore, the terrain information includes the location and building materials of each building around the base station; the electromagnetic source information includes the location, electromagnetic frequency and electromagnetic intensity of each electromagnetic source; and the weather information includes temperature, humidity and rainfall.

[0012] Furthermore, the calculation steps of the first impact value are as follows:

[0013] S11, constructing a terrain map including the base station location, each building location, and the target location based on the terrain information;

[0014] S12. Construct a direct path in the terrain map. The direct path directly connects the base station location and the target location. Calculate the free path loss based on the length of the direct path. , and its calculation formula is:

[0015]

[0016] Where, Indicates the straight-line distance between the base station location and the target location; Indicates the frequency of the target frequency signal; represents the speed of light;

[0017] S13. Calculate the penetration loss based on the buildings that the direct path passes through. ;

[0018] S14. Construct a reflection path in the topographic map. The reflection path represents the signal path along which the signal from the base station is directly transmitted to the base station through reflection from the building. Calculate the reflection loss based on the reflection path. , and its calculation formula is:

[0019]

[0020] Where, Represents the reflection coefficient of building materials;

[0021]

[0022] Where, represents the complex dielectric constant of the building material;

[0023] S15. Calculate the electric field strength of each path , and combine the electric field strength of all paths to obtain the comprehensive signal strength , and its calculation formula is:

[0024]

[0025] Where, Indicates the total number of paths;

[0026] S16, based on the comprehensive signal strength Calculate the signal power at the receiving end , and its calculation formula is:

[0027]

[0028] S17, according to the signal power of the receiving end Calculate the first impact value , and its calculation formula is:

[0029]

[0030] Where, Indicates the signal transmission power of the base station.

[0031] Furthermore, in step S13, the following steps are specifically included:

[0032] S131. Calculate the complex dielectric constant based on the building materials of each building , and its calculation formula is:

[0033]

[0034] Where, represents the real dielectric constant of the building material; represents the imaginary dielectric constant of the building material; Indicates plural units;

[0035] S132, according to the complex dielectric constant Calculating the attenuation coefficient , and its calculation formula is:

[0036]

[0037] Where, represents the angular frequency; represents the speed of light;

[0038] S133, according to the attenuation coefficient Calculating penetration loss , and its calculation formula is:

[0039]

[0040] Where, Indicates the thickness of the walls of all buildings along the direct path.

[0041] Furthermore, the signal strength of each path The calculation formula is as follows:

[0042] Direct path intensity The calculation formula is:

[0043]

[0044] Where, Indicates the strength of the base station's transmitted signal;

[0045] Reflection path signal strength The calculation formula is:

[0046]

[0047] Where, Indicates the phase shift of the reflection path; Indicates the angular frequency of the network signal; Indicates time;

[0048] Penetration path signal strength The calculation formula is:

[0049]

[0050] Where, represents the phase shift of the penetration path;

[0051] ;in, 、 and Represents the direct path signal strength , reflected path signal strength and penetration path signal strength .

[0052] Furthermore, the calculation steps of the second impact value are specifically as follows:

[0053] S21. Obtain the emission power of each electromagnetic source , transmission frequency and geographical locations and marking them on topographic maps;

[0054] S22. Calculate the interference power of each electromagnetic source at the receiving end , and its calculation formula is:

[0055]

[0056] Where, represents the straight-line distance between the i-th electromagnetic source and the receiving end;

[0057] S23, according to the interference power of the receiving end Calculate the second impact value .

[0058] Furthermore, the second impact value The calculation formula is:

[0059]

[0060] Where, represents the Boltzmann constant; Indicates the absolute temperature of the environment; Indicates the bandwidth of the target frequency signal; Represents the total number of electromagnetic sources.

[0061] Furthermore, the integrated signal quality value The calculation steps are as follows:

[0062] S31. Obtaining a first test value of a test signal , the second test value and the third test value ;

[0063] S32, according to the first test value , the second test value and the third test value Calculate weight coefficient , and its calculation formula is:

[0064]

[0065] Where, Represents the ln function;

[0066] S33, according to the weight coefficient Calculate the overall signal quality value , and its calculation formula is:

[0067]

[0068] Where, Represents the base of natural logarithms.

[0069] Furthermore, the steps for adjusting the signal transmission frequency are as follows:

[0070] S41, preset standard signal quality ;

[0071] S42. Determine the comprehensive signal quality value Is the signal quality higher than the standard? ;

[0072] If so, reduce the signal transmission frequency and calculate the corresponding signal quality value;

[0073] If not, the transmission power of the target frequency signal is reduced, and the corresponding signal quality value is calculated.

[0074] A network transmission method with a transmission quality optimization function comprises the following steps:

[0075] S1. Real-time acquisition of terrain information, electromagnetic source information and weather information;

[0076] S2. Calculate the first impact value of the terrain at the target location causing interference to the target frequency signal based on the terrain information. ;

[0077] S3. Calculate the second impact value of the electromagnetic source at the target position on the target frequency signal based on the electromagnetic source information. ;

[0078] S4. According to the first impact value and the second impact value Calculate the overall signal quality value , and adjust the signal transmission frequency accordingly.

[0079] Compared with the prior art, the present invention provides a network transmission system and method with a transmission quality optimization function, which has the following beneficial effects:

[0080] 1. In the present invention, considering that there may be multiple buildings at different angles in the signal propagation environment, the signal will be affected by penetration, reflection, and diffraction when passing through these buildings, so the accuracy of the calculated first impact value is higher than that of other calculation methods, which facilitates the subsequent improvement of the calculation accuracy of the comprehensive signal quality value.

[0081] 2. The present invention takes into account the comprehensive impact of multiple electromagnetic sources on signal quality. Compared with other calculation methods, the accuracy of calculating the second impact value is higher, which facilitates improving the calculation accuracy of the comprehensive signal quality value in the later stage.

[0082] 3. This invention takes into account the combined impact of terrain and multiple surrounding electromagnetic sources on signal quality, avoiding the traditional calculation method that relies solely on SINR and may ignore the signal attenuation caused by physical obstacles such as terrain and buildings. Considering the signal strength attenuation ratio alone may not fully account for the impact of electromagnetic interference and noise. Therefore, the calculation of the comprehensive signal quality value is more accurate, thereby optimizing the transmission quality of network signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0083] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0084] Figure 1A schematic diagram of a network transmission system and method with a transmission quality optimization function according to the present invention;

[0085] Figure 2 Schematic diagram of the topographic map of the present invention. DETAILED DESCRIPTION

[0086] To make the above-mentioned objectives, features, and advantages of the present invention more clearly understood, the present invention is further described below in detail with reference to the accompanying drawings and specific embodiments. This will enable a full understanding of how this application uses technical means to solve technical problems and achieve technical effects, and to implement the invention accordingly.

[0087] Those skilled in the art will appreciate that all or part of the steps in the following embodiments can be accomplished by instructing related hardware through a program. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0088] Mobile phones have become an important tool for communication, social interaction, entertainment, and work in people's lives, so the quality of network transmission largely determines the user experience of using the above functions.

[0089] Mobile phone network signal transmission generally relies on base stations to encode and modulate electrical signals, and then transmit them via radio waves. The mobile phone receives the radio waves and decodes them. However, during the radio wave transmission process, it is affected by many factors, including:

[0090] 1. Physical obstacles: Obstacles such as buildings can block radio waves, causing signal strength to weaken;

[0091] 2. Electromagnetic interference: Other wireless devices may cause data packets to be completely lost or unable to be decoded, and if signals on adjacent frequencies leak into the target frequency band, normal communication will also be affected.

[0092] In order to increase the signal transmission speed, high-frequency signal transmission is generally preferred. However, high-frequency signals are more susceptible to the above factors. Therefore, when the above factors affect the signal quality of the mobile phone receiving end, it will affect the user experience. For this reason, Figure 1 As shown, the present invention proposes a network transmission system with a transmission quality optimization function, including an information acquisition module, an interference analysis module and a signal optimization module;

[0093] Among them, the information collection module is used to obtain terrain information, electromagnetic source information and weather information in real time; specifically, terrain information is obtained through the shooting results of satellite images and the building information included in the relevant parts, electromagnetic source information can be obtained through the monitoring data of the radio monitoring station, and weather information is obtained through meteorological forecast services. Therefore, terrain information includes the location and building materials of each building around the base station; electromagnetic source information includes the location, electromagnetic frequency and electromagnetic intensity of each electromagnetic source; weather information includes temperature, humidity and rainfall.

[0094] The interference analysis module includes a terrain interference analysis unit and an electromagnetic interference analysis unit;

[0095] The terrain interference analysis unit is used to calculate the first impact value of the interference caused by the terrain at the target location to the target frequency signal according to the terrain information. , the first impact value Indicates the signal strength attenuation ratio of the receiving end; specifically, the calculation steps of the first impact value are as follows:

[0096] S11, construct a terrain map including the base station location, each building location and the target location based on the terrain information, such as Figure 2 As shown;

[0097] S12. Construct a direct path in the terrain map. The direct path directly connects the base station location and the target location. Calculate the free path loss based on the length of the direct path. , and its calculation formula is:

[0098]

[0099] Where, Indicates the straight-line distance between the base station location and the target location; Indicates the frequency of the target frequency signal; represents the speed of light;

[0100] S13. Calculate the penetration loss based on the buildings that the direct path passes through. Specifically, since there may be multiple buildings between the target location and the base station location, it is necessary to calculate the comprehensive impact of all buildings on the target frequency signal. To this end, in step S13, the following steps are specifically included:

[0101] S131. Calculate the complex dielectric constant based on the building materials of each building , and its calculation formula is:

[0102]

[0103] Where, represents the real dielectric constant of the building material; represents the imaginary dielectric constant of the building material; Indicates a plural unit; in the present invention, for ;

[0104] S132, according to the complex dielectric constant Calculating the attenuation coefficient , and its calculation formula is:

[0105]

[0106] Where, represents the angular frequency; represents the speed of light; in the present invention, ;

[0107] S133, according to the attenuation coefficient Calculating penetration loss , and its calculation formula is:

[0108]

[0109] Where, Indicates the thickness of the walls of all buildings along the direct path.

[0110] S14. Construct a reflection path in the topographic map. The reflection path represents the signal path along which the signal from the base station is directly transmitted to the base station through reflection from the building. Calculate the reflection loss based on the reflection path. , and its calculation formula is:

[0111]

[0112] Where, Represents the reflection coefficient of building materials;

[0113]

[0114] Where, represents the complex dielectric constant of the building material;

[0115] It should be noted that the real dielectric constant and the imaginary dielectric constant They represent the permittivity of building materials relative to vacuum, the ability of building materials to store electrical energy, and the ability of building materials to lose electrical energy; the real dielectric constant of different building materials and the imaginary dielectric constant The relationship between it and the signal frequency is shown in Table 1;

[0116] Table 1:

[0117] Material Frequency (GHz) #timg# (real part) #timg# (imaginary part) Loss tangent Air 2.4 1.0 ~0 ~0 dry bricks 2.4 4.5 0.1 0.022 Wet Bricks 2.4 8.0 0.5 0.062 concrete 2.4 5.0 0.5 0.1 dry wood 2.4 3.0 0.05 0.017 wet wood 2.4 8.0 1.0 0.125

[0118] S15. Calculate the electric field strength of each path , and combine the electric field strength of all paths to obtain the comprehensive signal strength , and its calculation formula is:

[0119]

[0120] Where, Indicates the total number of paths; specifically, the signal strength of each path The calculation formula is as follows:

[0121] Direct path intensity The calculation formula is:

[0122]

[0123] Where, Indicates the strength of the base station's transmitted signal;

[0124] Reflection path signal strength The calculation formula is:

[0125]

[0126] Where, Indicates the phase shift of the reflection path; Indicates the angular frequency of the network signal; Indicates time;

[0127] Penetration path signal strength The calculation formula is:

[0128]

[0129] Where, represents the phase shift of the penetration path;

[0130] ;in, 、 and Represents the direct path signal strength , reflected path signal strength and penetration path signal strength .

[0131] S16, based on the comprehensive signal strength Calculate the signal power at the receiving end , and its calculation formula is:

[0132]

[0133] S17, according to the signal power of the receiving end Calculate the first impact value , and its calculation formula is:

[0134]

[0135] Where, Indicates the signal transmission power of the base station.

[0136] In the present invention, considering that there may be multiple buildings at different angles in the signal propagation environment, the signal will be affected by penetration, reflection and diffraction when passing through these buildings, so the accuracy of the calculated first impact value is higher than other calculation methods, which facilitates the subsequent improvement of the calculation accuracy of the comprehensive signal quality value.

[0137] The electromagnetic interference analysis unit is used to calculate the second impact value of the electromagnetic source at the target position on the target frequency signal based on the electromagnetic source information , the second impact value Indicates the strength of the target frequency signal received at the target location relative to the interference signals of all electromagnetic sources. Specifically, since the electromagnetic waves emitted by the surrounding electromagnetic sources will also affect the target frequency signal, the calculation steps of the second impact value are as follows:

[0138] S21. Obtain the emission power of each electromagnetic source , transmission frequency and geographical locations and marking them on topographic maps;

[0139] S22. Calculate the interference power of each electromagnetic source at the receiving end , and its calculation formula is:

[0140]

[0141] Where, represents the straight-line distance between the i-th electromagnetic source and the receiving end; in the present invention, It can be obtained directly through the annotations on the topographic map;

[0142] S23, according to the interference power of the receiving end Calculate the second impact value , and its calculation formula is:

[0143]

[0144] Where, represents the Boltzmann constant; Indicates the absolute temperature of the environment; Indicates the bandwidth of the target frequency signal; represents the total number of electromagnetic sources; in the present invention, The value of .

[0145] The present invention takes into account the comprehensive impact of multiple electromagnetic sources on signal quality. Compared with other calculation methods, the accuracy of calculating the second impact value is higher, which facilitates improving the calculation accuracy of the comprehensive signal quality value in the later stage.

[0146] The signal optimization module is used to and the second impact value Calculate the overall signal quality value , and adjust the signal transmission frequency accordingly; specifically, due to the first impact value and the second impact value Respectively represent the impact of terrain and electromagnetic source on the target frequency signal, so the first impact value can be used and the second impact value To judge the impact of the terrain environment and each electromagnetic source on the target frequency signal respectively, the electromagnetic waves with higher frequencies have poorer penetration and anti-interference capabilities, but the information transmission speed is faster; while the electromagnetic waves with lower frequencies have stronger penetration and anti-interference capabilities, but the information transmission speed is slower. Therefore, in order to ensure the user experience of each user, the base station generally gives priority to using a higher frequency band. If the signal quality is poor, it is necessary to reduce the frequency to ensure the stability of signal transmission. Therefore, when the transmission quality of the target frequency signal is affected, it is necessary to select a suitable frequency transmission signal to ensure transmission speed and stability. For this reason, the comprehensive signal quality value The calculation steps are as follows:

[0147] S31. Obtaining a first test value of a test signal , the second test value and the third test value ; Specifically, the first test value Indicates the signal strength attenuation ratio of the test signal at the receiving end without the influence of buildings and dense buildings; the second test value and the third test value Respectively represent the strength of the signal received by the receiving end in the absence of electromagnetic interference and in the presence of electromagnetic interference relative to the interference signal of all electromagnetic sources; it should be noted that the test signal is a signal of a set frequency;

[0148] S32, according to the first test value , the second test value and the third test value Calculate weight coefficient , and its calculation formula is:

[0149]

[0150] Where, Represents the ln function;

[0151] S33, according to the weight coefficient Calculate the overall signal quality value , and its calculation formula is:

[0152]

[0153] Where, Represents the base of natural logarithms.

[0154] The steps to adjust the signal transmission frequency are as follows:

[0155] S41, preset standard signal quality ; Specifically, standard signal quality By testing the signal quality without the influence of buildings and electromagnetic sources;

[0156] S42. Determine the comprehensive signal quality value Is the signal quality higher than the standard? ;

[0157] If so, reduce the signal transmission frequency and calculate the corresponding signal quality value;

[0158] If not, the transmission power of the target frequency signal is reduced, and the corresponding signal quality value is calculated.

[0159] The present invention takes into account the comprehensive influence of terrain and multiple surrounding electromagnetic sources on signal quality, avoiding the problem that traditional calculation methods that rely solely on SINR may ignore the signal attenuation caused by physical obstacles such as terrain and buildings, and that considering the signal strength attenuation ratio alone may not fully consider the influence of electromagnetic interference and noise, so the comprehensive signal quality value is calculated. The accuracy is higher, thereby optimizing the transmission quality of network signals.

[0160] When the comprehensive signal quality value of the base station and standard signal quality When the difference between them is less than 0.2, the signal with this frequency and power is selected as the transmission signal.

[0161] The second embodiment of the present invention aims to provide a network transmission method with a transmission quality optimization function, comprising the following steps:

[0162] S1. Real-time acquisition of terrain information, electromagnetic source information and weather information;

[0163] S2. Calculate the first impact value of the terrain at the target location causing interference to the target frequency signal based on the terrain information. ;

[0164] S3. Calculate the second impact value of the electromagnetic source at the target position on the target frequency signal based on the electromagnetic source information. ;

[0165] S4. According to the first impact value and the second impact value Calculate the overall signal quality value , and adjust the signal transmission frequency accordingly.

[0166] The above embodiments provide a detailed introduction to the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the ideas of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A network transmission system with a transmission quality optimization function, characterized in that: include: An information acquisition module, which is used to obtain terrain information, electromagnetic source information, and weather information in real time; An interference analysis module, comprising a terrain interference analysis unit and an electromagnetic interference analysis unit; The terrain interference analysis unit is used to calculate the first impact value of the interference caused by the terrain of the target position to the target frequency signal according to the terrain information. , the first impact value Represents the signal strength attenuation ratio of the receiving end; the electromagnetic interference analysis unit is used to calculate the second impact value of the electromagnetic source at the target position on the target frequency signal based on the electromagnetic source information , the second impact value Indicates the strength of the target frequency signal received at the target location relative to the interference signals from all electromagnetic sources; A signal optimization module is configured to optimize the signal according to the first impact value. and the second impact value Calculate the overall signal quality value , and adjust the signal transmission frequency accordingly.

2. The network transmission system according to claim 1, wherein: The terrain information includes the location and building materials of each building around the base station; the electromagnetic source information includes the location, electromagnetic frequency and electromagnetic intensity of each electromagnetic source; and the weather information includes temperature, humidity and rainfall.

3. The network transmission system according to claim 1, wherein: The steps for calculating the first impact value are as follows: S11, constructing a terrain map including the base station location, each building location, and the target location based on the terrain information; S12. Construct a direct path in the terrain map. The direct path directly connects the base station location and the target location. Calculate the free path loss based on the length of the direct path. , and its calculation formula is: Where, Indicates the straight-line distance between the base station location and the target location; Indicates the frequency of the target frequency signal; represents the speed of light; S13. Calculate the penetration loss based on the buildings that the direct path passes through. ; S14. Construct a reflection path in the topographic map. The reflection path represents the signal path along which the signal from the base station is directly transmitted to the base station through reflection from the building. Calculate the reflection loss based on the reflection path. , and its calculation formula is: Where, Represents the reflection coefficient of building materials; Where, represents the complex dielectric constant of the building material; S15. Calculate the electric field strength of each path , and combine the electric field strength of all paths to obtain the comprehensive signal strength , and its calculation formula is: Where, Indicates the total number of paths; S16, based on the comprehensive signal strength Calculate the signal power at the receiving end , and its calculation formula is: S17, according to the signal power of the receiving end Calculate the first impact value , and its calculation formula is: Where, Indicates the signal transmission power of the base station.

4. The network transmission system according to claim 3, characterized in that: In step S13, the following steps are specifically included: S131. Calculate the complex dielectric constant based on the building materials of each building , and its calculation formula is: Where, represents the real dielectric constant of the building material; represents the imaginary dielectric constant of the building material; Indicates plural units; S132, according to the complex dielectric constant Calculating the attenuation coefficient , and its calculation formula is: Where, represents the angular frequency; represents the speed of light; S133, according to the attenuation coefficient Calculating penetration loss , and its calculation formula is: Where, Indicates the thickness of the walls of all buildings along the direct path.

5. The network transmission system according to claim 3, characterized in that: Signal strength of each path The calculation formula is as follows: Direct path intensity The calculation formula is: Where, Indicates the strength of the base station's transmitted signal; Reflection path signal strength The calculation formula is: Where, Indicates the phase shift of the reflection path; Indicates the angular frequency of the network signal; Indicates time; Penetration path signal strength The calculation formula is: Where, represents the phase shift of the penetration path; ;in, 、 and Represents the direct path signal strength , reflected path signal strength and penetration path signal strength .

6. The network transmission system according to claim 1, characterized in that: The steps for calculating the second impact value are as follows: S21. Obtain the emission power of each electromagnetic source , transmission frequency and geographical locations and marking them on topographic maps; S22. Calculate the interference power of each electromagnetic source at the receiving end , and its calculation formula is: Where, represents the straight-line distance between the i-th electromagnetic source and the receiving end; S23, according to the interference power of the receiving end Calculate the second impact value .

7. The network transmission system according to claim 6, characterized in that: The second impact value The calculation formula is: Where, represents the Boltzmann constant; Indicates the absolute temperature of the environment; Indicates the bandwidth of the target frequency signal; Represents the total number of electromagnetic sources.

8. The network transmission system according to claim 1, wherein: Comprehensive signal quality value The calculation steps are as follows: S31. Obtaining a first test value of a test signal , the second test value and the third test value ; S32, according to the first test value , the second test value and the third test value Calculate weight coefficient , and its calculation formula is: Where, Represents the ln function; S33, according to the weight coefficient Calculate the overall signal quality value , and its calculation formula is: Where, Represents the base of natural logarithms.

9. The network transmission system according to claim 1, wherein: The steps of adjusting the signal transmission frequency are as follows: S41, preset standard signal quality ; S42. Determine the comprehensive signal quality value Is the signal quality higher than the standard? ; If so, reduce the signal transmission frequency and calculate the corresponding signal quality value; If not, the transmission power of the target frequency signal is reduced, and the corresponding signal quality value is calculated.

10. A method for the network transmission system according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Real-time acquisition of terrain information, electromagnetic source information and weather information; S2. Calculate the first impact value of the terrain at the target location causing interference to the target frequency signal based on the terrain information. ; S3. Calculate the second impact value of the electromagnetic source at the target position on the target frequency signal based on the electromagnetic source information. ; S4. According to the first impact value and the second impact value Calculate the overall signal quality value , and adjust the signal transmission frequency accordingly.

Images