Electric power security access terminal and method based on high-throughput broadband satellite

Abstract

The invention discloses an electric power security access terminal and method based on a high-flux broadband satellite, and the terminal comprises a terminal device and an installation box, the exterior of the terminal device is provided with an anti-skid mechanism, the anti-skid mechanism comprises a rotating rod which is rotatably installed on the inner bottom wall of the installation box, and one end of the rotating rod penetrates and extends to the exterior of the rotating rod; driving conical teeth are fixedly mounted on the outer surface of the rotating rod, and two supporting plates are fixedly mounted on the inner bottom wall of the mounting box. According to the invention, the terminal equipment is not easy to slip when being held by hand for use, the terminal equipment can be protected, the cost of a user is reduced, the access method of a broadband satellite can be improved, the broadband satellite terminal can be used in a severe environment, and the user experience is improved. According to the invention, the signal of the broadband satellite can be improved according to the position of the user and the environment condition of the user, so that the practicability and convenience of the high-throughput broadband satellite equipment are improved, and the application range of the broadband satellite is wider.

Description

Technical Field

[0001] The present invention relates to the field of power safety of high-throughput broadband satellites, and more specifically to a power safety access terminal and method based on high-throughput broadband satellites. Background Art

[0002] Although my country's wireless mobile communication network has undergone decades of development and has become the world's largest and most widely covered mobile communication network, high-throughput satellite communications have been integrated into the construction of my country's core infrastructure such as electricity and communications, playing an important role in optimizing the allocation and efficient use of power resources. The use of satellite communications is not restricted by time and space and is more flexible and convenient. In emergency communication command scenarios, especially emergency sites in major disaster areas, cross-departmental collaboration is usually required to form an emergency command system with three levels of interconnection and two levels of command among the forward communication team, the front command headquarters, and the rear command center. At this time, high-throughput broadband satellites play a significant role.

[0003] The power safety access terminals of high-throughput broadband satellites are mostly handheld when in use. During handheld use, they are easy to slip, causing direct damage to the access terminals and economic losses to users. At the same time, high-throughput satellite communication terminals also have the disadvantages of signal attenuation and resource waste. Heavy rainfall may cause signal attenuation, affecting the normal use of users and reducing the practicality and convenience of satellite communications. Therefore, we propose a power safety access terminal and method based on high-throughput broadband satellite to solve the above problems. Summary of the invention

[0004] In view of the deficiencies of the above-mentioned technologies, the present invention discloses an electric power safety access terminal and method based on a high-throughput broadband satellite, which can protect the safety access terminal equipment so that the safety access terminal equipment will not slip and be damaged when used by users. At the same time, the problem of signal attenuation caused by excessive rainfall of broadband satellites is solved by improving the broadband satellite access method.

[0005] The present invention adopts the following technical solutions:

[0006] A power safety access terminal based on a high-throughput broadband satellite comprises: a terminal device and an installation box, wherein an anti-slip mechanism is arranged on the outside of the terminal device:

[0007] The anti-skid mechanism includes a rotating rod rotatably mounted on the bottom wall of the installation box and one end of which passes through and extends to the outside of the box, the outer surface of the rotating rod is fixedly mounted with an active conical tooth, the inner bottom wall of the installation box is fixedly mounted with two support plates, the left and right side walls of the inner cavity of the installation box are rotatably mounted with screw rods with one end passing through and extending to the outside of the two support plates respectively, the opposite sides of the two screw rods are fixedly mounted with driven conical teeth, the two driven conical teeth are meshed with the outer surface of the active conical teeth, the outer surfaces of the two screw rods are threadedly connected with moving blocks, the bottoms of the two moving blocks are fixedly mounted with limiting blocks, the opposite sides of the two moving blocks are fixedly mounted with grip rods with one end passing through and extending to the outside of the installation box, the outer surfaces of the two grip rods are fixedly mounted with anti-skid sleeves, and the outer surfaces of the rotating rods are threadedly connected with threaded blocks.

[0008] As a further embodiment of the present invention, the installation box is fixedly installed on the top of the terminal device, and heat dissipation nets are fixedly installed on both the left and right sides of the terminal device.

[0009] As a further embodiment of the present invention, two limiting grooves are provided on the inner bottom wall of the installation box, and the outer surfaces of the two limiting blocks are slidably connected to the inner walls of the two limiting grooves respectively.

[0010] As a further embodiment of the present invention, the threads arranged on the outer surfaces of the two screw rods have the same direction.

[0011] As a further embodiment of the present invention, the power safety access terminal based on high-throughput broadband satellite further comprises:

[0012] The power data access module is used to collect power data from smart meters, sensors and substation equipment in the power system, covering all key nodes of the power system, filtering, cleaning and correcting the collected raw data, and compressing the data to facilitate subsequent rapid data transmission;

[0013] Data encryption module, used to encrypt pre-processed power data to ensure confidentiality and integrity of data during transmission and prevent data from being forcibly accessed and tampered with;

[0014] A satellite communication module is used to demodulate the signal, convert the digital signal into a radio frequency signal for satellite transmission, upload the encrypted power data to the satellite, establish a connection between the user terminal and the ground station through a satellite link, transmit the power data over a long distance and restore it to a digital signal. The satellite module includes a high-throughput satellite terminal, a satellite and a ground base station. The output end of the high-throughput satellite terminal is connected to the input end of the satellite, and the output end of the satellite is connected to the input end of the ground base station.

[0015] The data processing module is used to decrypt the ground base station data and store and forward the decrypted power data;

[0016] The network security management module is used to monitor the operating status of the entire communication system in real time, perform network configuration and management to ensure the normal operation of the system, authenticate the terminals and users accessing the system, and control the access rights to stored data and resources;

[0017] Data application module, used to dispatch and manage power according to the processed data, and to analyze data and provide decision support;

[0018] The output end of the power data access module is connected to the input end of the data encryption module, the output end of the data encryption module is connected to the input end of the satellite communication module, the output end of the satellite communication module is connected to the input end of the data processing module, the output end of the data processing module is connected to the input end of the data application module, and the network security management module is connected to the data processing module.

[0019] As a further embodiment of the present invention, when calculating the azimuth and elevation angle of the satellite, the terminal is further provided with a meteorological data module to obtain rainfall, and the system integration and control module is used to dynamically adjust the transmission frequency of the high-throughput satellite communication system to cope with the signal attenuation caused by different rainfall amounts. The transmission power formula is as follows:

[0020]

[0021] In formula (1), P0 represents the initial transmission power under rainless conditions, k represents the rain attenuation coefficient, the signal strength changes under different rainfall conditions are recorded through historical data, R represents the predicted rainfall, α represents the attenuation index, ΔL represents the dynamic link loss compensation, and the difference between the RSSI monitoring received signal strength and the preset threshold is set as the additional link loss;

[0022] f(f c ,θ,φ)=a·log(f c )+b·(θ0-θ)+c·|φ0-φ| represents the frequency-dependent loss and antenna angle compensation function, f c represents the carrier frequency, θ represents the actual elevation angle of the antenna, θ0 represents the maximum antenna gain angle, φ represents the actual azimuth angle of the antenna, φ0 represents the azimuth angle of the maximum antenna gain, a, b and c represent compensation coefficients, which are determined by fitting experimental data of signal attenuation measurements at different frequencies. The required signal loss compensation amount is calculated through the compensation function under different frequency, elevation and azimuth conditions, and the transmission power of the satellite communication terminal is dynamically adjusted to ensure the communication quality of high-throughput satellites in environments with excessive rainfall.

[0023] As a further embodiment of the present invention, when searching and locating the optimal satellite signal value, data encryption is implemented through a power data encryption module, and the working steps of the power data encryption module include:

[0024] Step 1: First, data processing is performed. The data transmission interface mainly receives the power metering data sent by the transmission layer. The logic circuit is the power to complete the logic operation of the power metering data. The redundant power supply consists of two identical power supplies. The chip performs load balancing control on the two. The dual-machine interface can use the network to realize dual-machine redundant backup of the power metering data in the data processing module.

[0025] Step 2. The data storage chip is located in the data storage module of the encryption system processing layer, supports two-way transmission protocol, and has information protection function to prevent power metering data loss caused by hardware damage. When the instantaneous storage chip is running, the resistor installed outside the chip is used to maintain the stable level, so that the data storage module can operate stably.

[0026] Step 3: Manage all access users in the encryption system through the security management center, including the computers used by visitors and network resource requests, verify user information and perform authorized operations, provide encrypted data to visitors and record all operations of visitors in the system, thereby ensuring the security of system power metering data transmission.

[0027] As a further embodiment of the present invention, the high-throughput broadband satellite-based power safety access terminal further comprises a network security management module, the network security management module performs coding and encryption management on network security, and the working method of the network security management module comprises the following steps:

[0028] Step 1: Process and analyze network security data through arithmetic coding, and use the cyclic shift key control method to reorganize network security data. The linear structure expression of the bit sequence reorganization is:

[0029] f=r(M+S)(y+1)+y (2)

[0030] In formula (2), y is the network security measurement data output by the security management center, r is the characteristic quantity of the network security measurement data distributed through link encryption during the key encryption process, M and S are the parameter keys generated when encoding the network security measurement data, and the linear encryption characteristics of the network security measurement data are constructed by the code element sequence method to obtain the randomly scrambled network security measurement data bit sequence stream U transmitted in the link layer = {u i , i=1,2,…,N},

[0031] Using any number m of network security measurement data coding sequences to form μ 2 bit ciphertext vector Where t is the characteristic number set of network security measurement data. The residual component expression of the encrypted network security measurement data in the finite field obtained by combining the pseudo-random sequence method is:

[0032]

[0033] Based on formula (3), the network security measurement data decryption key is established according to the key system Simultaneous calculation The n-dimensional information entropy is obtained by reorganizing the linear structure f of the bit sequence to represent the segmented mapping function of network security measurement data encryption, and the master key θ of network security measurement data encryption is obtained, thereby creating a network security measurement data encryption identification bit sequence, and forming the reverse encryption expression of the fusion function:

[0034]

[0035] In formula (4), K is the kernel function for transmitting network security measurement data, W is the hash transfer function for encrypting network security measurement data, and the network security measurement data encryption grouping function expression is obtained by calculating and statistically analyzing the fusion function D:

[0036] C=D+f∑(θ+1)+θ (5)

[0037] Based on formula (5), b is set as the public key feature of the network security measurement data encryption block cipher, and the network security measurement data homomorphic encryption function expression is obtained by using the hash function:

[0038] G=μ 2 DC / (b-1) (6)

[0039] The homomorphic encryption control of network security measurement data is realized through the value of μ in formula (6), the adaptive weight of the hash function for homomorphic encryption of network security measurement data is set to ω, and the key information of network security measurement data is established by the hash function. The fuzzy function expression of network security measurement data is obtained as follows:

[0040] V=ωG / (J-1) (7)

[0041] In formula (7), we obtain the result of the fuzziness function of network security measurement data, set λ as the temporal logic control parameter, and set f′ as the inverse function to control the network security measurement data transmission, and establish the network security measurement data homomorphic encryption transmission control optimization model, which is expressed as follows:

[0042] Q=(V+1)λf′ (8)

[0043] Considering the linear characteristics of homomorphic confidential network security measurement data, A is set as the linear iterative function of homomorphic encryption network security measurement data, and the optimization model of homomorphic encryption transmission control of network security measurement data is calculated and analyzed. The expression of the network security measurement data secure transmission encryption model is created as follows:

[0044] Z=QVλ / A(t-1) (9)

[0045] A deep fusion algorithm is used to calculate the key encryption model for secure transmission of network security metering data, improve the key scrambling generated during the network security metering data encryption process, enhance the security of network security metering data transmitted in the encryption system, and achieve the system's network security metering data anti-leakage capability.

[0046] Step 2: Encrypt the network security measurement data through the encryption system, so that non-system users cannot query the original network security measurement data, verifying that the above system can effectively ensure the security of network security measurement data.

[0047] Step 3: Use encryption system testing tools to test the data encryption performance and transmission data leakage resistance of the system in this article.

[0048] As a further embodiment of the present invention, the satellite terminal calculates the azimuth and elevation angles of the satellite based on the ephemeris data, local time, local environmental conditions and terminal location information in the storage device, adjusts each angle according to the planned scanning path, performs signal scanning of information markers, and searches for and locates the optimal satellite signal value.

[0049] Positive beneficial effects:

[0050] The present invention arranges an installation box, a rotating rod, an active conical tooth, two driven conical teeth, two support plates, two screw rods, two driven conical teeth, two moving blocks, two limit blocks, two gripping rods, two anti-slip sleeves and threaded blocks for coordinated use, so that the terminal device is not easy to slip when used by hand, and the terminal device can be protected, thereby reducing the cost for users. At the same time, the access method of the broadband satellite can also be improved, so that the broadband satellite terminal can be used even in harsh environmental conditions, and the signal of the broadband satellite can be improved according to the user's location and the environmental conditions, thereby improving the practicality and convenience of the high-throughput broadband satellite equipment and also making the use of the broadband satellite more extensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0052] Figure 1 This is a schematic structural diagram of a power safety access terminal based on a high-throughput broadband satellite according to the present invention;

[0053] Figure 2 The present invention is a power safety access terminal based on high-throughput broadband satellite Figure 1 Enlarged view of point A in the middle;

[0054] Figure 3 The present invention is a power safety access terminal based on high-throughput broadband satellite Figure 1 Enlarged view of point B in the middle;

[0055] Figure 4 This is a vertical view of a power safety access terminal based on a high-throughput broadband satellite according to the present invention;

[0056] Figure 5 This is a schematic diagram of the overall architecture of a power safety access terminal communication system based on a high-throughput broadband satellite according to the present invention;

[0057] Figure 6 The present invention is a structural block diagram of a security management center of a power security access terminal based on a high-throughput broadband satellite.

[0058] In the figure: 1. terminal equipment; 2. installation box; 3. heat dissipation net; 401. rotating rod; 402. active tapered gear; 403. support plate; 404. screw rod; 405. driven tapered gear; 406. moving block; 407. limit block; 408. grip rod; 409. anti-slip sleeve; 410. threaded block. DETAILED DESCRIPTION

[0059] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0060] like Figure 1-4 As shown, a power safety access terminal based on a high-throughput broadband satellite comprises:

[0061] Terminal device 1, installation box 2, the terminal device 1 is provided with an anti-slip mechanism on its exterior;

[0062] The anti-slip mechanism includes a rotating rod 401 which is rotatably mounted on the inner bottom wall of the installation box 2 and one end of which penetrates and extends to the outside thereof. An active conical tooth 402 is fixedly mounted on the outer surface of the rotating rod 401. Two support plates 403 are fixedly mounted on the inner bottom wall of the installation box 2. A screw rod 404 with one end penetrating and extending to the outside of the two support plates 403 is rotatably mounted on the left and right side walls of the inner cavity of the installation box 2. A driven conical tooth 405 is fixedly mounted on the opposite side of the two screw rods 404. The two driven conical teeth 405 are both in contact with the outer surface of the active conical tooth 402. The surfaces are meshed with each other, and the outer surfaces of the two lead screws 404 are threadedly connected with moving blocks 406, and the bottoms of the two moving blocks 406 are fixedly installed with limit blocks 407. The opposite sides of the two moving blocks 406 are fixedly installed with grip rods 408 with one end passing through and extending to the outside of the installation box 2, and the outer surfaces of the two grip rods 408 are fixedly installed with anti-slip sleeves 409. The outer surface of the rotating rod 401 is threadedly connected with a threaded block 410. The installation box 2 is fixedly installed on the top of the terminal device 1, and the left and right sides of the terminal device 1 are fixedly installed with heat dissipation nets 3.

[0063] Among them, two limit grooves are opened on the inner bottom wall of the installation box 1, and the outer surfaces of the two limit blocks 407 are respectively slidably connected to the inner walls of the two limit grooves, which plays a role in limiting the two moving blocks 406, so that the two moving blocks 406 can move left and right under the action of the two screw rods 404.

[0064] The threads on the outer surfaces of the two screw rods 404 are arranged in the same direction, so that the two screw rods 404 can rotate in different directions, thereby simultaneously driving the two moving blocks 406 to move in opposite directions.

[0065] It should be added that a fixing groove is provided on the top of the installation box 2, and the inner wall of the fixing groove is threadedly connected to the outer surface of the threaded block 410, the purpose of which is to limit the rotating rod 401, so that the rotating rod 401 can be fixed after use to prevent self-rotation.

[0066] according to Figure 5-6 As shown, a power safety access terminal based on a high-throughput broadband satellite comprises:

[0067] The power data access module is used to collect power data from smart meters, sensors and substation equipment in the power system, covering all key nodes of the power system, filtering, cleaning and correcting the collected raw data, and compressing the data to facilitate subsequent rapid data transmission;

[0068] Data encryption module, used to encrypt pre-processed power data to ensure confidentiality and integrity of data during transmission and prevent data from being forcibly accessed and tampered with;

[0069] A satellite communication module is used to demodulate the signal, convert the digital signal into a radio frequency signal for satellite transmission, upload the encrypted power data to the satellite, establish a connection between the user terminal and the ground station through a satellite link, transmit the power data over a long distance and restore it to a digital signal. The satellite module includes a high-throughput satellite terminal, a satellite and a ground base station. The output end of the high-throughput satellite terminal is connected to the input end of the satellite, and the output end of the satellite is connected to the input end of the ground base station.

[0070] The data processing module is used to decrypt the ground base station data and store and forward the decrypted power data;

[0071] The network security management module is used to monitor the operating status of the entire communication system in real time, perform network configuration and management to ensure the normal operation of the system, authenticate the terminals and users accessing the system, and control the access rights to stored data and resources;

[0072] Data application module, used to dispatch and manage power according to the processed data, and to analyze data and provide decision support;

[0073] The output end of the power data access module is connected to the input end of the data encryption module, the output end of the data encryption module is connected to the input end of the satellite communication module, the output end of the satellite communication module is connected to the input end of the data processing module, the output end of the data processing module is connected to the input end of the data application module, and the network security management module is connected to the data processing module.

[0074] Among them, the high-throughput satellite terminal is equipped with a meteorological data module to obtain rainfall, and the system integration and control module is used to dynamically adjust the transmission frequency of the high-throughput satellite communication system to cope with the signal attenuation caused by different rainfall. The transmission power formula is as follows:

[0075]

[0076] In formula (1), P0 represents the initial transmission power under rainless conditions, k represents the rain attenuation coefficient, the signal strength changes under different rainfall conditions are recorded through historical data, R represents the predicted rainfall, α represents the attenuation index, ΔL represents the dynamic link loss compensation, and the difference between the RSSI monitoring received signal strength and the preset threshold is set as the additional link loss;

[0077] f(f c ,θ,φ)=a·log(f c )+b·(θ0-θ)+c·|φ0-φ| represents the frequency-dependent loss and antenna angle compensation function, f crepresents the carrier frequency, θ represents the actual elevation angle of the antenna, θ0 represents the maximum antenna gain angle, φ represents the actual azimuth angle of the antenna, φ0 represents the azimuth angle of the maximum antenna gain, a, b and c represent compensation coefficients, which are determined by fitting experimental data of signal attenuation measurements at different frequencies. The required signal loss compensation amount is calculated through the compensation function under different frequency, elevation and azimuth conditions, and the transmission power of the satellite communication terminal is dynamically adjusted to ensure the communication quality of high-throughput satellites in environments with excessive rainfall.

[0078] It should be added that in formula (1), the meteorological data acquisition module is used to detect and obtain rainfall in real time, and the satellite remote sensing precipitation estimation algorithm is used to obtain the predicted rainfall value. The changes in water vapor content in the cloud layer and atmosphere are observed by high-throughput satellites, and the precipitation level is estimated using reflection and radiation data. The radar satellite hybrid method is used to deduce the intensity and distribution of precipitation to obtain the predicted rainfall; the formula of the radar satellite hybrid method is as follows:

[0079]

[0080] In formula (10), a represents the satellite division area coefficient, b represents the setting precipitation type coefficient, and z represents the radar reflectivity factor, which indicates the reflection intensity of precipitation particles to radar waves. Different types of precipitation particles have different reflection capabilities to radar waves. Therefore, Z is used to represent the type and number density of precipitation particles. The radar reflection factor Z is introduced to enhance the accuracy of precipitation prediction. By measuring and analyzing the radar reflectivity factor, the reflection signal intensity of precipitation particles is directly obtained, thereby inferring the type and intensity of precipitation. cloud Indicates the thickness of the cloud layer. The vertical thickness of the cloud layer is calculated through high-throughput satellite observations. Cloud represents the vertical cloud layer. T cloud represents cloud top temperature, which is the satellite infrared channel observation value reflecting the temperature of the cloud top. The temperature of the cloud layer is the key factor in determining whether water vapor condenses into raindrops or other precipitation forms. A lower cloud top temperature usually indicates that water vapor in the atmosphere is more likely to condense, thereby forming stronger rain. The introduction of cloud layer temperature improves the accuracy and reliability of the model. W represents the atmospheric water vapor content, which is the concentration of water vapor in the atmosphere measured by the satellite microwave channel. The atmospheric water vapor content is introduced as a prediction parameter. The water vapor transmission path and flux intensity in the atmosphere directly affect the formation and intensity of precipitation. The radar satellite hybrid method accurately predicts rainfall for further rain attenuation compensation.

[0081] In formula (1), α represents the attenuation index, which describes the sensitivity of rainfall intensity to RF signal attenuation. The attenuation index α and the rain attenuation coefficient k are obtained through experimental measurement. The experimental data are shown in Table 1:

[0082] Table 1 Experimental data table

[0083] Rainfall Signal Strength Path loss 5 32 2.2 10 29 3.1 15 28 4.3 5 36 1.8 10 31 2.3 15 26 2.9 20 25 5.1 25 23 6.4 30 22 7.6 50 18 8.4

[0084] Based on the statistical data in the above table, we use the exponential function A = k·R α Perform curve fitting, A = P0-P R The difference between the signal strength under no-rainfall conditions and the signal strength under rainfall R is taken as the path loss. Further adjustments and corrections are made based on more experimental data points and data under different weather conditions to obtain reliable data on the quality of high-throughput satellite communications.

[0085] As a further embodiment of the present invention, the working steps of the power data encryption module include:

[0086] Step 1: First, data processing is performed. The data transmission interface mainly receives the power metering data sent by the transmission layer. The logic circuit is the power to complete the logic operation of the power metering data. The redundant power supply consists of two identical power supplies. The chip performs load balancing control on the two. The dual-machine interface can use the network to realize dual-machine redundant backup of the power metering data in the data processing module.

[0087] Step 2. The data storage chip is located in the data storage module of the encryption system processing layer, supports two-way transmission protocol, and has information protection function to prevent power metering data loss caused by hardware damage. When the instantaneous storage chip is running, the resistor installed outside the chip is used to maintain the stable level, so that the data storage module can operate stably.

[0088] Step 3: Manage all access users in the encryption system through the security management center, including the computers used by visitors and network resource requests, verify user information and perform authorized operations, provide encrypted data to visitors and record all operations of visitors in the system, thereby ensuring the security of system power metering data transmission.

[0089] It should be added that the main function of the user management module is to manage the user information entering the encryption system, and to screen out illegal intruders through layers of screening in each link within the module to prevent non-system users from stealing network security measurement data within the encryption system.

[0090] As a further embodiment of the present invention, the power security access method of the high-throughput broadband satellite, the network security management module comprises the following steps:

[0091] Step 1: Process and analyze network security data through arithmetic coding, and use the cyclic shift key control method to reorganize network security data. The linear structure expression of the bit sequence reorganization is:

[0092] f=r(M+S)(y+1)+y (2)

[0093] In formula (2), y is the network security measurement data output by the security management center, r is the characteristic quantity of the network security measurement data distributed through link encryption during the key encryption process, M and S are the parameter keys generated when encoding the network security measurement data, and the linear encryption characteristics of the network security measurement data are constructed by the code element sequence method to obtain the randomly scrambled network security measurement data bit sequence stream U transmitted in the link layer = {u i , i=1,2,…,N},

[0094] Using any number m of network security measurement data coding sequences to form μ 2 bit ciphertext vector Where t is the characteristic number set of network security measurement data. The residual component expression of the encrypted network security measurement data in the finite field obtained by combining the pseudo-random sequence method is:

[0095]

[0096] Based on formula (3), the network security measurement data decryption key is established according to the key system Simultaneous calculation The n-dimensional information entropy is obtained by reorganizing the linear structure f of the bit sequence to represent the segmented mapping function of network security measurement data encryption, and the master key θ of network security measurement data encryption is obtained, thereby creating a network security measurement data encryption identification bit sequence, and forming the reverse encryption expression of the fusion function:

[0097]

[0098] In formula (4), K is the kernel function for transmitting network security measurement data, W is the hash transfer function for encrypting network security measurement data, and the network security measurement data encryption grouping function expression is obtained by calculating and statistically analyzing the fusion function D:

[0099] C=D+f∑(θ+1)+θ (5)

[0100] Based on formula (5), b is set as the public key feature of the network security measurement data encryption block cipher, and the network security measurement data homomorphic encryption function expression is obtained by using the hash function:

[0101] G=μ 2 DC / (b-1) (6)

[0102] The homomorphic encryption control of network security measurement data is realized through the value of μ in formula (6), the adaptive weight of the hash function for homomorphic encryption of network security measurement data is set to ω, and the key information of network security measurement data is established by the hash function. The fuzzy function expression of network security measurement data is obtained as follows:

[0103] V=ωG / (J-1) (7)

[0104] In formula (7), we obtain the result of the fuzziness function of network security measurement data, set λ as the temporal logic control parameter, and set f′ as the inverse function to control the network security measurement data transmission, and establish the network security measurement data homomorphic encryption transmission control optimization model, which is expressed as follows:

[0105] Q=(V+1)λf′ (8)

[0106] Considering the linear characteristics of homomorphic confidential network security measurement data, A is set as the linear iterative function of homomorphic encryption network security measurement data, and the optimization model of homomorphic encryption transmission control of network security measurement data is calculated and analyzed. The expression of the network security measurement data secure transmission encryption model is created as follows:

[0107] Z=QVλ / A(t-1) (9)

[0108] Among them, the relationship between network security measurement data and the system response time of data encryption, decryption and transmission in this paper is shown in Table 2:

[0109] Table 2 Experimental data information table

[0110]

[0111]

[0112] A deep fusion algorithm is used to calculate the key encryption model for secure transmission of network security metering data, improve the key scrambling generated during the network security metering data encryption process, enhance the security of network security metering data transmitted in the encryption system, and achieve the system's network security metering data anti-leakage capability.

[0113] Step 2: Encrypt the network security measurement data through the encryption system, so that non-system users cannot query the original network security measurement data, verifying that the above system can effectively ensure the security of network security measurement data.

[0114] Step 3: Use encryption system testing tools to test the data encryption performance and transmission data leakage resistance of the system in this article.

[0115] As a further embodiment of the present invention, the satellite terminal calculates the azimuth and elevation angles of the satellite according to the ephemeris data, local time, local environmental conditions and terminal location information in the storage device, adjusts each angle according to the planned scanning path, performs signal scanning of the information mark, and searches for and locates the optimal satellite signal value;

[0116] When the satellite terminal is accessing, it periodically prepares resources through the network management system, notifies the source Internet gateway to issue a switching preparation start command, and sends the satellite network data in the target Internet gateway at the same time. After the switching preparation work is completed and the network management system receives the switching start confirmation message sent by the source Internet gateway, the source network control center sends a unicast satellite terminal information message to notify the satellite terminal to log in to the designated target beam. After the satellite terminal completes the beam switching, the target network control center notifies the target Internet gateway of the connection completion through the network management system.

[0117] Working principle:

[0118] When the broadband satellite terminal device needs to be used handheld, the threaded block 410 needs to be rotated out of the fixed groove first, and then the rotating rod 401 needs to be rotated, so that the rotating rod 401 drives the active conical gear 402 to rotate clockwise, and the active conical gear 402 drives the two driven conical gears 405 to rotate in opposite directions respectively and simultaneously, and the two driven conical gears 405 drive the two screw rods 404 to rotate in different directions respectively and simultaneously, so that the two screw rods 404 drive the two moving blocks 406 to move to the opposite side respectively and simultaneously, and the two moving blocks 406 drive the two gripping rods 408 to move to the opposite side respectively and simultaneously, so that the two gripping rods 408 drive the two anti-slip sleeves 409 to move to the opposite side respectively and simultaneously, so that the two gripping rods 408 move The satellite terminal is extended to a suitable length so that the two grips 408 can be held in the hand, thereby preventing the satellite terminal from falling off due to direct holding, and further protecting the satellite terminal equipment. At the same time, the signal information transmitted by the transmitting antenna is received by the receiving antenna, and the channel quality is estimated by the channel estimation module of the receiver. The high-throughput satellite system continuously monitors the random access channel according to a fixed receiving window. After capturing the user's random access signal, the user's identity information is identified to determine whether it is a legitimate user. According to the location information of the satellite terminal, the onboard phased array service beam is adjusted to point to the user's location. At the same time, according to the user's geographical location, identity information and environmental conditions, the optimal satellite signal value is searched and located.

[0119] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that these specific embodiments are only illustrative, and those skilled in the art may make various omissions, substitutions and changes to the details of the above methods and systems without departing from the principles and essence of the present invention. For example, merging the above method steps so as to perform substantially the same functions in substantially the same manner to achieve substantially the same results is within the scope of the present invention. Therefore, the scope of the present invention is limited only by the appended claims.

Claims

1. A power safety access terminal based on high-throughput broadband satellite, characterized in that: It comprises a terminal device (1) and an installation box (2), wherein the terminal device (1) is provided with an anti-slip mechanism on the outside; The anti-slip mechanism comprises a rotating rod (401) rotatably mounted on the inner bottom wall of the installation box (2) and having one end penetrating through and extending to the outside thereof; an active conical tooth (402) is fixedly mounted on the outer surface of the rotating rod (401); two support plates (403) are fixedly mounted on the inner bottom wall of the installation box (2); screw rods (404) are rotatably mounted on the left and right side walls of the inner cavity of the installation box (2) and have one end penetrating through and extending to the outside of the two support plates (403) respectively; driven conical teeth (405) are fixedly mounted on opposite sides of the two screw rods (404); and the two driven conical teeth (405) are fixedly mounted on the opposite sides of the two screw rods (404). The conical teeth (405) are meshed with the outer surfaces of the active conical teeth (402); the outer surfaces of the two screw rods (404) are threadedly connected with moving blocks (406); the bottoms of the two moving blocks (406) are fixedly installed with limit blocks (407); the opposite sides of the two moving blocks (406) are fixedly installed with gripping rods (408) with one end penetrating and extending to the outside of the installation box (2); the outer surfaces of the two gripping rods (408) are fixedly installed with anti-slip sleeves (409); and the outer surface of the rotating rod (401) is threadedly connected with a threaded block (410).

2. According to claim 1, a high-throughput broadband satellite-based power safety access terminal is characterized in that: The installation box (2) is fixedly installed on the top of the terminal device (1), and heat dissipation nets (3) are fixedly installed on both the left and right sides of the terminal device (1).

3. The high-throughput broadband satellite-based power safety access terminal according to claim 1, characterized in that: The inner bottom wall of the installation box (1) is provided with two limiting grooves, and the outer surfaces of the two limiting blocks (407) are respectively slidably connected to the inner walls of the two limiting grooves.

4. The high-throughput broadband satellite-based power safety access terminal according to claim 1, characterized in that: The threads arranged on the outer surfaces of the two screw rods (404) have the same direction.

5. The high-throughput broadband satellite-based power safety access terminal according to claim 1, characterized in that: The access terminal further comprises: The power data access module is used to collect power data from smart meters, sensors and substation equipment in the power system, covering all key nodes of the power system, filtering, cleaning and correcting the collected raw data, and compressing the data to facilitate subsequent rapid data transmission; Data encryption module, used to encrypt pre-processed power data to ensure confidentiality and integrity of data during transmission and prevent data from being forcibly accessed and tampered with; A satellite communication module is used to demodulate the signal, convert the digital signal into a radio frequency signal for satellite transmission, upload the encrypted power data to the satellite, establish a connection between the user terminal and the ground station through a satellite link, transmit the power data over a long distance and restore it to a digital signal. The satellite module includes a high-throughput satellite terminal, a satellite and a ground base station. The output end of the high-throughput satellite terminal is connected to the input end of the satellite, and the output end of the satellite is connected to the input end of the ground base station. The data processing module is used to decrypt the ground base station data and store and forward the decrypted power data; The network security management module is used to monitor the operating status of the entire communication system in real time, perform network configuration and management to ensure the normal operation of the system, authenticate the terminals and users accessing the system, and control the access rights to stored data and resources; Data application module, used to dispatch and manage power according to the processed data, and to analyze data and provide decision support; The output end of the power data access module is connected to the input end of the data encryption module, the output end of the data encryption module is connected to the input end of the satellite communication module, the output end of the satellite communication module is connected to the input end of the data processing module, the output end of the data processing module is connected to the input end of the data application module, and the network security management module is connected to the data processing module.

6. A method for secure access to electricity based on high-throughput broadband satellite, characterized in that: A power safety access terminal based on a high-throughput broadband satellite according to any one of claims 1 to 5 is characterized in that: The method is: The satellite terminal calculates the azimuth and elevation angles of the satellite according to the ephemeris data, local time, local environmental conditions and terminal location information in the storage device, adjusts each angle according to the planned scanning path, performs signal scanning of the information mark, and searches for and locates the optimal satellite signal value; When the satellite terminal is accessed, it periodically prepares resources through the network management system, notifies the source Internet gateway to issue a switching preparation start command, and sends the satellite network data in the target Internet gateway at the same time. After the switching preparation is completed and the network management system receives the switching start confirmation message sent by the source Internet gateway, the source network control center sends a unicast satellite terminal information message to notify the satellite terminal to log in to the designated target beam. After the satellite terminal completes the beam switching, the target network control center notifies the target Internet gateway of the connection completion through the network management system.

7. A method for secure power access based on high-throughput broadband satellite according to claim 6, characterized in that: When calculating the azimuth and elevation angle of the satellite, The terminal is also provided with a meteorological data module to obtain rainfall, and uses the system integration and control module to dynamically adjust the transmission frequency of the high-throughput satellite communication system to cope with the signal attenuation caused by different rainfall amounts. The transmit power formula is as follows: In formula (1), P0 represents the initial transmission power under rainless conditions, k represents the rain attenuation coefficient, the signal strength changes under different rainfall conditions are recorded through historical data, R represents the predicted rainfall, α represents the attenuation index, ΔL represents the dynamic link loss compensation, and the difference between the RSSI monitoring received signal strength and the preset threshold is set as the additional link loss; f(f c ,θ,φ)=a·log(f c )+b·(θ0-θ)+c·|φ0-φ| represents the frequency-dependent loss and antenna angle compensation function, f c represents the carrier frequency, θ represents the actual elevation angle of the antenna, θ0 represents the maximum antenna gain angle, φ represents the actual azimuth angle of the antenna, φ0 represents the azimuth angle of the maximum antenna gain, a, b and c represent compensation coefficients, which are determined by fitting experimental data of signal attenuation measurements at different frequencies. The required signal loss compensation amount is calculated through the compensation function under different frequency, elevation and azimuth conditions, and the transmission power of the satellite communication terminal is dynamically adjusted to ensure the communication quality of high-throughput satellites in environments with excessive rainfall.

8. The method for secure access to electricity based on high-throughput broadband satellite according to claim 6, characterized in that: When searching and locating the optimal satellite signal value, data encryption is implemented through the power data encryption module, wherein the working steps of the power data encryption module include: Step 1: First, data processing is performed. The data transmission interface mainly receives the power metering data sent by the transmission layer. The logic circuit is the power to complete the logic operation of the power metering data. The redundant power supply consists of two identical power supplies. The chip performs load balancing control on the two. The dual-machine interface can use the network to realize dual-machine redundant backup of the power metering data in the data processing module. Step 2: The data storage chip is located in the data storage module of the encryption system processing layer, supports a two-way transmission protocol, and has an information protection function to prevent the loss of power metering data due to hardware damage. When the instantaneous storage chip is running, the resistor installed outside the chip is used to maintain a stable level, so that the data storage module can operate stably; Step 3: Manage all access users in the encryption system through the security management center, including the computers used by visitors and network resource requests, verify user information and perform authorized operations, provide encrypted data to visitors and record all operations of visitors in the system, thereby ensuring the security of system power metering data transmission.

9. The method for secure power access based on high-throughput broadband satellite according to claim 6, characterized in that: The high-throughput broadband satellite terminal also includes a network security management module, which performs coding and encryption management on network security. The working method of the network security management module includes the following steps: Step 1: Process and analyze network security data through arithmetic coding, and use the cyclic shift key control method to reorganize network security data. The linear structure expression of the bit sequence reorganization is: f=r(M+S)(y+1)+y (2) In formula (2), y is the network security measurement data output by the security management center, r is the characteristic quantity of the network security measurement data distributed through link encryption during the key encryption process, M and S are the parameter keys generated when encoding the network security measurement data, and the linear encryption characteristics of the network security measurement data are constructed by the code element sequence method to obtain the randomly scrambled network security measurement data bit sequence stream U transmitted in the link layer = {u i , i = 1, 2, ..., N} Using any number m of network security measurement data coding sequences to form μ 2 bit ciphertext vector Where t is the characteristic number set of network security measurement data. The residual component expression of the encrypted network security measurement data in the finite field obtained by combining the pseudo-random sequence method is: Based on formula (3), the network security measurement data decryption key is established according to the key system Simultaneous calculation The n-dimensional information entropy is obtained by reorganizing the linear structure f of the bit sequence to represent the segmented mapping function of network security measurement data encryption, and the master key θ of network security measurement data encryption is obtained, thereby creating a network security measurement data encryption identification bit sequence, and forming the reverse encryption expression of the fusion function: In formula (4), K is the kernel function for transmitting network security measurement data, W is the hash transfer function for encrypting network security measurement data, and the network security measurement data encryption grouping function expression is obtained by calculating and statistically analyzing the fusion function D: C=D+f∑(θ+1)+θ (5) Based on formula (5), b is set as the public key feature of the network security measurement data encryption block cipher, and the network security measurement data homomorphic encryption function expression is obtained by using the hash function: G=μ 2 DC / (b-1) (6) The homomorphic encryption control of network security measurement data is realized through the value of μ in formula (6), the adaptive weight of the hash function for homomorphic encryption of network security measurement data is set to ω, and the key information of network security measurement data is established by the hash function. The fuzzy function expression of network security measurement data is obtained as follows: V=ωG / (J-1) (7) In formula (7), we obtain the result of the fuzziness function of network security measurement data, set λ as the temporal logic control parameter, and set f′ as the inverse function to control the network security measurement data transmission, and establish the network security measurement data homomorphic encryption transmission control optimization model, which is expressed as follows: Q=(V+1)λf′ (8) Considering the linear characteristics of homomorphic confidential network security measurement data, A is set as the linear iterative function of homomorphic encryption network security measurement data, and the optimization model of homomorphic encryption transmission control of network security measurement data is calculated and analyzed. The expression of the network security measurement data secure transmission encryption model is created as follows: Z=QVλ / A(t-1) (9) A deep fusion algorithm is used to calculate the key encryption model for secure transmission of network security metering data, improve the key scrambling generated during the network security metering data encryption process, enhance the security of network security metering data transmitted in the encryption system, and achieve the system's network security metering data anti-leakage capability. Step 2: Encrypt the network security measurement data through the encryption system, so that non-system users cannot query the original network security measurement data, verifying that the above system can effectively ensure the security of network security measurement data. Step 3: Use encryption system testing tools to test the data encryption performance and transmission data leakage resistance of the system in this article.

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