A power data transmission device based on three network operators and high-throughput satellite communication

Abstract

The present invention discloses a power data transmission device based on three network operators and high-throughput satellite communication, belonging to the technical field of power data transmission. It comprises a body, a data transmission module is installed inside the body, the data transmission module comprises a main control unit, a simplified encryption unit, a public network communication core network element and a ka / ku high-throughput satellite portable station, the main control unit is connected to a temporary storage unit; the simplified encryption unit is connected to the main control unit, the public network communication core network element is connected to the main control unit and the public network base station; the ka / ku high-throughput satellite portable station is connected to the main control unit; a data recovery unit is arranged at the power production area business platform. The power data transmission device based on three network operators and high-throughput satellite communication of the present invention can realize power data transmission through the public network channel and satellite channel of the three network operators, avoid the interruption of the transmission channel, and the power data transmission has high security.

Description

Technical Field

[0001] The present invention specifically relates to a power data transmission device based on three network operators and high-throughput satellite communications, and belongs to the technical field of power data transmission. Background Art

[0002] At this stage, high-orbit high-throughput communication satellites can achieve a maximum download communication bandwidth of 150Mbps and an upload communication bandwidth of 40Mbps for a single service user; high-throughput communication satellites can be used in outdoor uninhabited areas to solve communication blind spots; the broadband communication network of high-throughput satellites can make up for outdoor communication blind spots, and it can be foreseen that in the future, work involving outdoor activities, especially in uninhabited areas, will increasingly rely on high-throughput satellites to solve communication problems.

[0003] Some of the existing power facilities, such as power substations and transmission channels, are located in blind spots of public network communications, making it impossible to transmit power data through the public network. Even in areas covered by the public network, once the "three breaks" of circuit break, line break and network break occur, the power data transmission line will be interrupted. If only satellite communication is used, the data transmission cost is high, and during data transmission, the data will pass through satellite ground stations and satellite operation centers, and the security of power-sensitive data transmission cannot be guaranteed. Summary of the invention

[0004] To solve the above problems, the present invention proposes a power data transmission device based on three network operators and high-throughput satellite communications, which integrates the public network communication core network element and the Ka / Ku high-throughput satellite portable station as a portable station for data transmission, and can realize power data transmission between the base stations of the three network operators and the high-throughput satellites, and can ensure the security of power data transmission.

[0005] The power data transmission device based on three network operators and high-throughput satellite communication of the present invention comprises a body, a data transmission module is installed inside the body, the data transmission module comprises a main control unit, and the main control unit is connected to a temporary storage unit;

[0006] A simplified encryption unit, the simplified encryption unit is connected to the main control unit, the simplified encryption unit includes a primary simplified unit and a secondary simplified unit, the primary simplified unit is communicatively connected to a dictionary library, the secondary simplified unit is communicatively connected to a combination library; the primary simplified unit is communicatively connected to the secondary simplified unit;

[0007] A public network communication core network element, wherein the public network communication core network element is communicatively connected to the main control unit and the public network base station;

[0008] A ka / ku high-throughput satellite portable station, wherein the ka / ku high-throughput satellite portable station is connected to a main control unit;

[0009] The power facility distribution network RTU / DTU is communicatively connected with the public network communication core network element;

[0010] The main control unit communicates with the public network base station and is connected to the power production area business platform; the power production area business platform is provided with a data recovery unit.

[0011] During operation, power facilities such as power substations, ring network cabinets, and transmission channels are connected to the power facility distribution network RTU / DTU. The power data (monitoring data and production data) of the power facilities are connected to the power facility distribution network RTU / DTU through radio frequency, Bluetooth and communication lines. The power facility distribution network RTU / DTU is connected to the public network communication core network element through the Internet of Things card operated by the three networks. The public network communication core network element first sends the power data to the main control unit, and forwards it to the public network base station through the main control unit, so that the power data is transmitted to the power production area business platform through the public network base station; when the power data is transmitted, it can also be directly forwarded to the public network base station through the public network communication core network element; when the communication link is interrupted, the power data is backed up to the temporary storage unit through the main control unit; and after encryption by the simplified encryption unit and simplification of the data length, the power data is forwarded to the ChinaSat 16-KaLTE satellite through the ka high-throughput satellite portable station, or connected to the Asia-Pacific 6D- through the ku high-throughput satellite portable station. The KuLTE satellite forwards the data to the satellite gateway station, which then connects to the satellite operation center through the satellite gateway station. The power data is connected to the public network through the satellite operation center, and the public network is connected to the VPDN network. The power data is transmitted back to the power production area business platform through the VPDN network, and the data is recovered through the data recovery unit of the power production area business platform. This can save communication resources of the satellite channel and at the same time, can avoid the security of data transmission.

[0012] Furthermore, the public network communication core network element is composed of PRRU base stations operated by China Telecom, China Unicom and China Mobile; the public network communication core network element can constitute a ground portable base station, and the PRRU base station can be connected to the BBU, which can complete the public network signal coverage within a radius of 30 to 50 meters, and can realize the RTU / DTU access of the power facility distribution network within the public network signal coverage; the PRRU base station operated by China Telecom, China Unicom and China Mobile and the portable ka / ku high-throughput satellite portable station are used to form an integrated portable application, combining public network coverage with wireless broadband MESH self-organizing network networking technology, for the power substation, transmission channel and other power facility distribution network RTU, DTU collection and transmission and the communication backhaul needs in typical emergency scenarios of the power grid, the power facility monitoring and production data collection is realized, and the VPDN network is connected through the operating infrastructure, and the high-throughput satellite channel is used to transmit the data back to the power production area business platform.

[0013] Furthermore, the main control unit is also communicatively connected to an IoT WiFi module and a data switch; the IoT WiFi module is communicatively connected to an emergency communication terminal. When emergency communication is required, the data switch is turned on, and the main control unit detects the data switch on signal and triggers the IoT WiFi module. At this time, the emergency communication terminal can be connected to the IoT WiFi module to establish a communication channel among the emergency communication terminal, the IoT WiFi module, the main control unit, the Ka / Ku high-throughput satellite portable station and the power production area business platform, so as to meet the communication backhaul requirements in typical emergency scenarios of the power grid; when communication backhaul occurs in typical emergency scenarios of the power grid, the power data is continuously backed up to the temporary storage unit until the emergency communication terminal completes the communication, or during the communication gap of the emergency communication terminal, the data in the temporary storage unit is remotely transmitted to the power production area business platform.

[0014] Furthermore, the power facility distribution network RTU / DTU is connected to the public network composed of public network communication core network elements, and the power facility distribution network RTU / DTU obtains power data, which is power facility monitoring data and power production data; then, the power data is connected to the VPDN network through the public network communication core network elements, and the three-network operation base station is connected to the VPDN network, and the power data is transmitted back to the power production area business platform through the VPDN network. When the communication link between the public network communication core network elements and the three-network operation base station is interrupted, the power data is sent to the temporary storage unit, and a communication request is made again. When the communication link is restored, the power data stored in the temporary storage unit is retransmitted. When the number of communication requests reaches the set number, the communication link is still in an interrupted state. When the main control unit is in the satellite communication state, the main control unit sends the power data in the temporary storage unit to the simplified encryption unit, processes the power data through the simplified encryption unit, and outputs the simplified encrypted data; then, the simplified encrypted data is sent to the data interaction interface of the ka / ku high-throughput satellite portable station, the ka / ku high-throughput satellite portable station obtains the simplified encrypted data, and transfers the simplified encrypted data to the satellite gateway through the high-throughput satellite channel. Then, the simplified encrypted data is connected to the VPDN network through the satellite gateway, and the simplified encrypted data is transmitted back to the power production area business platform through the VPDN network. Then, the simplified encrypted data is restored to the power facility distribution network RTU / DTU through the data recovery unit to obtain power data.

[0015] Furthermore, each piece of the power data and each piece of the simplified encrypted data has a built-in check code or mark code. The power production area business platform distinguishes the received data object according to the check code or mark code, and the data object is power data or simplified encrypted data. By checking the check code or mark code, it can be distinguished that the information transmitted by the VPDN network is the power information transmitted by the base station of the three network operators or the power information transmitted by the high-throughput satellite channel.

[0016] Furthermore, the main control unit is connected to a key information extraction unit, the key information extraction unit is connected to a threshold comparison unit, and the threshold comparison unit is connected to a comparison database; the main control unit obtains power data in real time through a public network communication core network element, and sends the power data to the key information extraction unit, obtains key node data in the power data through the key information extraction unit, and then sends the key node data to the threshold comparison unit, the threshold comparison unit calls the comparison database, and performs a threshold comparison on the key node data. When the threshold exceeds the set value, an emergency code corresponding to the key node is generated, and the emergency code is sent to the power production area business platform through the ka / ku high-throughput satellite portable station. After the power production area business platform obtains the emergency code, the power production area business platform completes the abnormal information judgment of the corresponding power node according to the emergency code.

[0017] Furthermore, the working method of the simplified encryption unit is as follows: the main control unit sends the power data to the first-level simplification unit, the first-level simplification unit obtains the power data, and converts each power data into a code data strip by traversing the dictionary library, and then sends the code data strip to the second-level simplification unit, the second-level simplification unit converts the code data strip into simplified encryption data by traversing the combination library, and sends the simplified encryption data back to the main control unit; if the main control unit sends the power data in the temporary storage unit to the first-level simplification unit in sequence, and then calls the dictionary library to generate code data strips, the power data includes power data, status data and equipment data; for example, the power data includes the voltage of the bus, the system frequency feeder current, the active power, the reactive power and the power factor, the electric energy; for another example, the power data includes the current, active power, the reactive power, the power factor, the electric energy and the temperature of the main transformer; for another example, the protection setting and the DC power supply voltage; and the operating status of the substation equipment, etc. , by converting the above-mentioned power data into codes, such as composing the location information or port information into a code (letter code, digital code, letter and digital combination code), such as code B, and then composing the current, active power, reactive power, and power factor into a code (letter code, digital code, letter and digital combination code), such as code C, followed by the corresponding numerical information, and converting the numerical information, such as converting the 16-bit numerical information 1111101100100011 into a digital information code (letter code, digital code, letter and digital combination code), such as letters OKBC; obtaining the code data strip BCOKBC; then, sending the code data strip COKBC to the secondary simplification unit, the secondary simplification unit calls the combination library, and by traversing the combination library, obtains the code (letter code, digital code, letter and digital combination code) consistent with OKBC, such as code G, thereby generating simplified encrypted data BCG. The working method of the data recovery unit is as follows: the power production area business platform obtains the simplified encrypted data, and then sends the simplified encrypted data to the data recovery unit. The data recovery units are connected to a dictionary library and a combination library; the working method of the data recovery unit is the reverse process of the working method of the simplified encryption unit; after the power production area business platform reads the simplified encrypted data, it sends the simplified encrypted data to the data recovery unit. The data recovery unit first restores the data to BCG, then restores BCG to BCOKBC, and restores BCOKBC to the position (line network number, equipment model), data type and power data value of the corresponding data type.

[0018] Compared with the prior art, the power data transmission device based on three network operators and high-throughput satellite communication of the present invention has the following advantages:

[0019] 1. It can ensure the ability to transmit power data at any time; under normal conditions, power information can be transmitted to the power production area business platform through the VPDN network. When the VPDN network is disconnected, the on-site public network constructed by the public network communication core network element is still used. The power data collected by the on-site public network is simplified and encoded by the main control unit, and then sent to the power production area business platform for decoding and restoration, realizing dual-channel transmission of power data, which can ensure the ability to transmit power at any time.

[0020] 2. High data transmission security. The VPDN network built on the public network is used for power data transmission. The data transmission security is high. When satellite channel transmission is adopted, simplified encrypted power data is adopted, which can save satellite channel transmission resources and ensure the security of power data transmission, thus preventing power data from being stolen at the ground receiving station.

[0021] 3. Double-end monitoring and dual-channel transmission of abnormal power data can obtain abnormal power data in time. The power data is sent to the power production area business platform through the three-network operation base station or satellite channel, and the power production area business platform can perform threshold judgment on the key node data in the power data. When the threshold exceeds the set value, an abnormal information signal of the corresponding power node is issued; at the same time, the main control unit determines whether the power node information is abnormal on site. When an abnormality occurs, the emergency code is directly transmitted to the power production area business platform through the satellite channel, and the power production area business platform issues an abnormal information signal of the corresponding power node; the use of double-end monitoring and dual-channel transmission can avoid missing or misjudgment of abnormal power data. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the communication structure of the power facility distribution network RTU / DTU, power data transmission device and power production area business platform of the present invention.

[0023] Figure 2 It is a schematic diagram of the data transmission module structure of the present invention.

[0024] Figure 3 This is a schematic diagram of the structure of the data transmission module of the present invention connected to the emergency communication terminal.

[0025] Figure 4 It is a schematic diagram of the working process of the data transmission module of the present invention.

[0026] Figure 5 It is a schematic diagram of the connection structure of the data transmission module, the key information extraction unit and the threshold comparison unit of the present invention.

[0027] Figure 6 It is a schematic diagram of the key node information monitoring process of the present invention.

[0028] Figure 7 This is a schematic diagram of the working process of the simplified encryption unit of the present invention. DETAILED DESCRIPTION

[0029] Embodiment 1:

[0030] like Figures 1 to 7 The electric power data transmission device based on three network operators and high-throughput satellite communication shown includes a body, a data transmission module is installed inside the body, and the data transmission module includes a main control unit, and the main control unit is connected to a temporary storage unit;

[0031] A simplified encryption unit, the simplified encryption unit is connected to the main control unit, the simplified encryption unit includes a primary simplified unit and a secondary simplified unit, the primary simplified unit is communicatively connected to a dictionary library, the secondary simplified unit is communicatively connected to a combination library; the primary simplified unit is communicatively connected to the secondary simplified unit;

[0032] A public network communication core network element, wherein the public network communication core network element is communicatively connected to the main control unit and the public network base station;

[0033] A ka / ku high-throughput satellite portable station, wherein the ka / ku high-throughput satellite portable station is connected to a main control unit;

[0034] The power facility distribution network RTU / DTU is communicatively connected with the public network communication core network element;

[0035] The main control unit communicates with the public network base station and is connected to the power production area business platform; the power production area business platform is provided with a data recovery unit.

[0036] During operation, power facilities such as power substations, ring network cabinets, and transmission channels are connected to the power facility distribution network RTU / DTU. The power data (monitoring data and production data) of the power facilities are connected to the power facility distribution network RTU / DTU through radio frequency, Bluetooth and communication lines. The power facility distribution network RTU / DTU is connected to the public network communication core network element through the Internet of Things card operated by the three networks. The public network communication core network element first sends the power data to the main control unit, and forwards it to the public network base station through the main control unit, so that the power data is transmitted to the power production area business platform through the public network base station; when the power data is transmitted, it can also be directly forwarded to the public network base station through the public network communication core network element; when the communication link is interrupted, the power data is backed up to the temporary storage unit through the main control unit; and after encryption by the simplified encryption unit and simplification of the data length, the power data is forwarded to the ChinaSat 16-KaLTE satellite through the ka high-throughput satellite portable station, or connected to the Asia-Pacific 6D- through the ku high-throughput satellite portable station. The KuLTE satellite forwards the data to the satellite gateway station, which then connects to the satellite operation center through the satellite gateway station. The power data is connected to the public network through the satellite operation center, and the public network is connected to the VPDN network. The power data is transmitted back to the power production area business platform through the VPDN network, and the data is recovered through the data recovery unit of the power production area business platform. This can save communication resources of the satellite channel and at the same time, can avoid the security of data transmission.

[0037] The public network communication core network element is composed of PRRU base stations operated by China Telecom, China Unicom and China Mobile; the public network communication core network element can constitute a ground portable base station, connect the PRRU base station to the BBU, complete the public network signal coverage within a radius of 30 to 50 meters, and realize the RTU / DTU access of the power facility distribution network within the public network signal coverage; the PRRU base station operated by China Telecom, China Unicom and China Mobile and the portable ka / ku high-throughput satellite portable station are used to form an integrated portable application, combining public network coverage with wireless broadband MESH self-organizing network networking technology, for the collection and transmission of RTU and DTU of power facility distribution network such as power substations and transmission channels and the communication backhaul needs in typical emergency scenarios of the power grid, the monitoring and production data of power facilities are collected, and the access to the VPDN network and the high-throughput satellite channel are used to transmit the data back to the power production area business platform.

[0038] The main control unit is also communicatively connected to an IoT WiFi module and a data switch; the IoT WiFi module is communicatively connected to an emergency communication terminal. When emergency communication is required, the data switch is turned on, and the main control unit detects the data switch on signal and triggers the IoT WiFi module. At this time, the emergency communication terminal can be connected to the IoT WiFi module to establish a communication channel among the emergency communication terminal, the IoT WiFi module, the main control unit, the ka / ku high-throughput satellite portable station and the power production area business platform, which can meet the communication backhaul requirements in typical emergency scenarios of the power grid; it can realize two-way communication, and solves the problem that the PRRU base station only receives and detects signals but does not actively send signals; when communication backhaul occurs in a typical emergency scenario of the power grid, power data is continuously backed up to the temporary storage unit until the emergency communication terminal completes the communication, or during the communication gap of the emergency communication terminal, the data in the temporary storage unit is transmitted remotely to the power production area business platform.

[0039] The power facility distribution network RTU / DTU is connected to the public network composed of the public network communication core network element, and the power facility distribution network RTU / DTU obtains power data, which is the power facility monitoring data and power production data; then, the power data is connected to the VPDN network of the three-network operating base station through the public network communication core network element, and the power data is transmitted back to the power production area business platform through the VPDN network. When the communication link between the public network communication core network element and the three-network operating base station is interrupted, the power data is sent to the temporary storage unit and the communication request is made again. When the communication link is restored, the power data stored in the temporary storage unit is retransmitted. When the number of communication requests reaches the set number and the communication link is still in an interrupted state, The main control unit switches to the satellite communication state. When working, the main control unit sends the power data in the temporary storage unit to the simplified encryption unit, processes the power data through the simplified encryption unit, and outputs the simplified encrypted data; then, the simplified encrypted data is sent to the data interaction interface of the ka / ku high-throughput satellite portable station, the ka / ku high-throughput satellite portable station obtains the simplified encrypted data, and transfers the simplified encrypted data to the satellite gateway through the high-throughput satellite channel. Then, the simplified encrypted data is connected to the VPDN network through the satellite gateway, and the simplified encrypted data is transmitted back to the power production area business platform through the VPDN network. Then, the simplified encrypted data is restored to the power facility distribution network RTU / DTU through the data recovery unit to obtain power data.

[0040] Each piece of the power data and each piece of the simplified encrypted data has a built-in check code or mark code. The power production area business platform distinguishes the received data object according to the check code or mark code. The data object is power data or simplified encrypted data. By checking the check code or mark code, it can be distinguished that the information transmitted by the VPDN network is the power information transmitted by the base station of the three network operators or the power information transmitted by the high-throughput satellite channel.

[0041] The main control unit is connected to a key information extraction unit, the key information extraction unit is connected to a threshold comparison unit, and the threshold comparison unit is connected to a comparison database; the main control unit obtains power data in real time through a public network communication core network element, and sends the power data to the key information extraction unit, obtains key node data in the power data through the key information extraction unit, and then sends the key node data to the threshold comparison unit, the threshold comparison unit calls the comparison database, and compares the key node data with the threshold. When the threshold exceeds the set value, an emergency code corresponding to the key node is generated, and the emergency code is sent to the power production area business platform through the Ka / Ku high-throughput satellite portable station. After the power production area business platform obtains the emergency code, the power production area business platform completes the abnormal information judgment of the corresponding power node according to the emergency code.

[0042] The working method of the simplified encryption unit is as follows: the main control unit sends the power data to the first-level simplification unit, the first-level simplification unit obtains the power data, and converts each power data into a code data strip by traversing the dictionary library, and then sends the code data strip to the second-level simplification unit, the second-level simplification unit converts the code data strip into simplified encryption data by traversing the combination library, and sends the simplified encryption data back to the main control unit; if the main control unit sends the power data in the temporary storage unit to the first-level simplification unit in sequence, and then calls the dictionary library to generate code data strips, the power data includes power data, status data and equipment data; such as the power data includes the voltage of the bus, the system frequency feeder current, active power, reactive power and power factor, electric energy; for example, the power data includes the current, active power, reactive power, power factor, electric energy and temperature of the main transformer; for example, the protection setting value and DC power supply voltage; and the operating status of the substation equipment, etc., through The above-mentioned power data is converted into codes, such as the location information or port information is composed into a code (letter code, digital code, letter and number combination code), such as code B, and then the current, active power, reactive power, and power factor are composed into a code (letter code, digital code, letter and number combination code), such as code C, followed by the corresponding numerical information, and the numerical information is converted, such as the 16-bit numerical information 1111101100100011 is converted into a digital information code (letter code, digital code, letter and number combination code), such as letters OKBC; the code data strip BCOKBC is obtained; then, the code data strip COKBC is sent to the secondary simplification unit, and the secondary simplification unit calls the combination library, and by traversing the combination library, a code (letter code, digital code, letter and number combination code) consistent with OKBC is obtained, such as code G, thereby generating simplified encrypted data BCG. The working method of the data recovery unit is as follows: the power production area business platform obtains the simplified encrypted data, and then sends the simplified encrypted data to the data recovery unit. The data recovery units are connected to a dictionary library and a combination library; the working method of the data recovery unit is the reverse process of the working method of the simplified encryption unit; after the power production area business platform reads the simplified encrypted data, it sends the simplified encrypted data to the data recovery unit. The data recovery unit first restores the data to BCG, then restores BCG to BCOKBC, and restores BCOKBC to the position (line network number, equipment model), data type and power data value of the corresponding data type.

[0043] The above embodiments are only preferred implementations of the present invention, so any equivalent changes or modifications made according to the structures, features and principles described in the scope of application of the present invention are included in the scope of application of the present invention.

Claims

1. A power data transmission device based on three network operators and high-throughput satellite communication, characterized in that: It comprises a body, a data transmission module is installed inside the body, the data transmission module comprises a main control unit, and the main control unit is connected to a temporary storage unit; A simplified encryption unit, the simplified encryption unit is connected to the main control unit, the simplified encryption unit includes a primary simplified unit and a secondary simplified unit, the primary simplified unit is communicatively connected to a dictionary library, the secondary simplified unit is communicatively connected to a combination library; the primary simplified unit is communicatively connected to the secondary simplified unit; A public network communication core network element, wherein the public network communication core network element is communicatively connected to the main control unit and the public network base station; A ka / ku high-throughput satellite portable station, wherein the ka / ku high-throughput satellite portable station is connected to a main control unit; The power facility distribution network RTU / DTU is communicatively connected with the public network communication core network element; The main control unit communicates with the public network base station and is connected to the power production area business platform; the power production area business platform is provided with a data recovery unit; The working method of the simplified encryption unit is as follows: the main control unit sends the power data to the first-level simplified unit, the first-level simplified unit obtains the power data, and converts each power data into a code data strip by traversing the dictionary library, and then sends the code data strip to the second-level simplified unit, the second-level simplified unit converts the code data strip into simplified encryption data by traversing the combination library, and sends the simplified encryption data back to the main control unit; The working method of the data recovery unit is as follows: the power production area business platform obtains simplified encrypted data, and then sends the simplified encrypted data to the data recovery unit. The data recovery units are connected to a dictionary library and a combination library; the working method of the data recovery unit is the reverse process of the working method of the simplified encryption unit.

2. The power data transmission device based on three network operators and high-throughput satellite communication according to claim 1 is characterized in that: The public network communication core network element is composed of PRRU base stations operated by China Telecom, China Unicom and China Mobile.

3. The power data transmission device based on three network operators and high-throughput satellite communication according to claim 1 is characterized in that: The main control unit is also communicatively connected to an Internet of Things WiFi module and a data switch; the Internet of Things WiFi module is communicatively connected to an emergency communication terminal.

4. The power data transmission device based on three network operators and high-throughput satellite communication according to claim 1 is characterized in that: The power facility distribution network RTU / DTU is connected to the public network composed of the public network communication core network element, and the power facility distribution network RTU / DTU obtains power data, which is the power facility monitoring data and power production data; then, the power data is connected to the VPDN network of the three-network operating base station through the public network communication core network element, and the power data is transmitted back to the power production area business platform through the VPDN network. When the communication link between the public network communication core network element and the three-network operating base station is interrupted, the power data is sent to the temporary storage unit and the communication request is made again. When the communication link is restored, the power data stored in the temporary storage unit is retransmitted. When the number of communication requests reaches the set number and the communication link is still in an interrupted state, The main control unit switches to the satellite communication state. When working, the main control unit sends the power data in the temporary storage unit to the simplified encryption unit, processes the power data through the simplified encryption unit, and outputs the simplified encrypted data; then, the simplified encrypted data is sent to the data interaction interface of the ka / ku high-throughput satellite portable station, the ka / ku high-throughput satellite portable station obtains the simplified encrypted data, and transfers the simplified encrypted data to the satellite gateway through the high-throughput satellite channel. Then, the simplified encrypted data is connected to the VPDN network through the satellite gateway, and the simplified encrypted data is transmitted back to the power production area business platform through the VPDN network. Then, the simplified encrypted data is restored to the power facility distribution network RTU / DTU through the data recovery unit to obtain power data.

5. The power data transmission device based on three network operators and high-throughput satellite communication according to claim 4 is characterized in that: Each piece of the power data and each piece of the simplified encrypted data has a built-in check code or a marking code. The power production area business platform distinguishes the received data object based on the check code or the marking code, and the data object is power data or simplified encrypted data.

6. The power data transmission device based on three network operators and high-throughput satellite communication according to claim 4 is characterized in that: The main control unit is connected to a key information extraction unit, the key information extraction unit is connected to a threshold comparison unit, and the threshold comparison unit is connected to a comparison database; the main control unit obtains power data in real time through a public network communication core network element, and sends the power data to the key information extraction unit, obtains key node data in the power data through the key information extraction unit, and then sends the key node data to the threshold comparison unit, the threshold comparison unit calls the comparison database, and compares the key node data with the threshold. When the threshold exceeds the set value, an emergency code corresponding to the key node is generated, and the emergency code is sent to the power production area business platform through the Ka / Ku high-throughput satellite portable station. After the power production area business platform obtains the emergency code, the power production area business platform completes the abnormal information judgment of the corresponding power node according to the emergency code.

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