An ftu emergency communication method and system based on beidou-3 communication

Abstract

The application discloses a kind of FTU emergency communication method and system based on Beidou No.3 communication, it is related to power distribution monitoring and communication technical field, method includes: based on FTU equipment communication mode, receive and measure signal, carry out position calculation and two-way message communication;Based on two-way message communication, the remaining length of the first data sent is handled, to get reserved space;Based on reserved space, data frame is spliced;Emergency data in the first data is judged and operated;The application utilizes the transmission mode of Beidou No.3 to transmit FTU data, can make each transmission maximum 1750 bytes, frequency reaches 60 seconds once, guarantee the integrity and timeliness of data transmission, not only improve the fluency of normal data transmission, and show strong adaptability when facing sudden situation.

Description

Technical Field

[0001] The present invention relates to the field of power distribution monitoring and communication technology, and in particular to a FTU emergency communication method and system based on BeiDou-3 communication. Background Art

[0002] With the rapid development of my country's economy and the rapid growth of electricity demand, the safe and stable operation of the power system has become a critical guarantee for national energy security. In power systems, distribution automation is a key technology for improving power supply reliability and efficiency. As a key component of distribution automation systems, feeder terminal units (FTUs) play a vital role in distribution control and monitoring. FTUs ensure the normal operation of the power system by monitoring and controlling the status of distribution lines in real time.

[0003] In recent years, Beidou-based FTU communication technology has gradually gained widespread adoption, particularly in remote areas or areas with poor signal coverage, where Beidou satellite communication offers significant advantages. However, existing Beidou-based FTU communication solutions still have some shortcomings when responding to emergencies, primarily in the following areas: Existing solutions have relatively simple data transmission logic and lack a mechanism for prioritizing emergency data. In emergencies, critical information cannot be quickly transmitted, resulting in delayed emergency response. Existing Beidou-based FTU communication equipment typically uses a low transmission frequency and slow data transmission speed, making it difficult to meet the requirements of real-time monitoring and rapid response. For example, Beidou-2 transmission frequency is typically once every 15 minutes, and data volume is also limited, with each transmission reaching a maximum of 120 bytes. In exceptionally urgent situations, existing communication mechanisms cannot fully utilize the bandwidth resources provided by the Beidou communication system, resulting in low communication efficiency. This is particularly evident in emergency situations, where large amounts of data must be transmitted quickly to guide emergency response. Existing FTU communication solutions often rely on a single communication mode, typically relying on Beidou communication or mobile networks (such as 4G and 5G), and lack flexible switching mechanisms. In certain specific situations, the limitations of a single communication mode may lead to communication interruption or delay, affecting the efficiency of emergency response. Summary of the Invention

[0004] In view of the above-mentioned problems, the present invention is proposed.

[0005] Therefore, the technical problem solved by the present invention is: how to improve the stability of FTU real-time monitoring data transmission and the efficiency of command response.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] In a first aspect, an embodiment of the present invention provides an FTU emergency communication method based on BeiDou-3 communication, including:

[0008] Based on the FTU device communication mode, receiving and measuring signals, position calculation and bidirectional message communication are carried out.

[0009] Based on the bidirectional message communication, the remaining length of the transmitted first data is processed to obtain a reserved space.

[0010] Based on the reserved space, data framing is carried out to speed up the transmission of the first data.

[0011] The emergency data in the first data is judged and operated.

[0012] As a preferred scheme of the FTU emergency communication method based on Beidou-3 communication, wherein:

[0013] The processing of the remaining length of the transmitted first data based on the bidirectional message communication includes:

[0014] For the part of the transmitted first data that fails to occupy the full transmission data bandwidth, the remaining space is calculated and used as the reserved space.

[0015] As a preferred scheme of the FTU emergency communication method based on Beidou-3 communication, wherein:

[0016] The data framing based on the reserved space includes:

[0017] When the frame header and the first part of data in the reserved space are ready, the program pauses transmission until the second part of data is received.

[0018] As a preferred scheme of the FTU emergency communication method based on Beidou-3 communication, wherein:

[0019] The data framing based on the reserved space further includes:

[0020] The complete data sequence including the frame header, the first data, and the second data is obtained.

[0021] A frame trailer is added to the complete data sequence to form a complete data packet.

[0022] As a preferred scheme of the FTU emergency communication method based on Beidou-3 communication, wherein:

[0023] The judgment and operation of the emergency data in the first data includes:

[0024] A first judgment is made: whether emergency data is received;

[0025] If the first judgment result is yes, a second judgment is made: whether there is data before the emergency data;

[0026] If the first determination result is no, the data is sent after the data occupies the sending length of the Beidou-3 communication;

[0027] If the second determination result is yes, the emergency data is directly sent, and the data before the emergency data is saved;

[0028] If the second determination result is no, the emergency data is sent.

[0029] As a preferred scheme of the FTU emergency communication method based on the Beidou-3 communication, wherein:

[0030] The signal receiving and measuring, position calculation and bidirectional message communication based on the FTU device communication mode comprise:

[0031] The user machine receives the RDSS signal broadcast by at least one GEO satellite, and simultaneously receives the RNSS signal of at least four MEO or IGSO satellites;

[0032] The user machine measures the time difference from the satellite transmission to the user machine reception of the RNSS signal;

[0033] The measured time difference parameter is sent to the master control station through the GEO satellite.

[0034] As a preferred scheme of the FTU emergency communication method based on the Beidou-3 communication, wherein:

[0035] The signal receiving and measuring, position calculation and bidirectional message communication based on the FTU device communication mode further comprise:

[0036] The master control station performs user machine position calculation by using the received time difference parameter;

[0037] The master control station and the user machine perform bidirectional timing through the GEO satellite;

[0038] The user machine performs bidirectional message communication with the master control station through the GEO satellite.

[0039] In a second aspect, the embodiments of the present application provide a FTU emergency communication system based on the Beidou-3 communication, comprising:

[0040] A signal processing and position calculation module is configured to receive and measure signals, perform position calculation and bidirectional message communication based on the FTU device communication mode;

[0041] A data management module is configured to process the remaining length of the first data to be sent based on the bidirectional message communication, and obtain a reserved space;

[0042] A data framing module is configured to perform data framing based on the reserved space;

[0043] The emergency data processing module is used to judge and operate the emergency data in the first data.

[0044] In a third aspect, an embodiment of the present invention provides a computing device, including:

[0045] memory and processor;

[0046] The memory is used to store computer-executable instructions, and the processor is used to execute the computer-executable instructions. When the one or more programs are executed by the one or more processors, the one or more processors implement the FTU emergency communication method based on Beidou-3 communication as described in any embodiment of the present invention.

[0047] In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the FTU emergency communication method based on BeiDou-3 communication.

[0048] The beneficial effects of the present invention are as follows: the present invention utilizes the unique transmission mode of BeiDou-3 to transmit FTU data, which can transmit up to 1750 bytes each time and the frequency reaches once every 60 seconds; it mainly utilizes BeiDou-3 communication to compensate for transmission requirements to meet applications; according to the mode, it can be divided into data transmission based on BeiDou communication or data transmission based on 4G or 5G. In actual application, the transmission mode can be flexibly selected according to the on-site conditions. After the equipment is installed, FTU emergency communication based on BeiDou-3 can be completed, and the transmission length and frequency are better than BeiDou-2; through in-depth optimization of programming technology, it focuses on solving its original sending frequency bottleneck, aiming to reduce unnecessary communication occupation and improve overall resource utilization; it focuses on intelligent identification and priority management. When the system receives emergency data, it will immediately and efficiently process it and ensure that it is sent first to meet the real-time and importance requirements; a set of exception handling mechanisms are designed for possible error situations. Once an error is found, it can be quickly captured, analyzed and corresponding corrective measures can be taken to ensure the integrity and timely transmission of data, which not only improves the fluency of normal data transmission, but also demonstrates strong adaptability when facing emergencies. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0050] Figure 1This is an overall flow chart of the FTU emergency communication method based on BeiDou-3 communication according to the present invention;

[0051] Figure 2 This is a BeiDou-3 positioning communication link diagram of the FTU emergency communication method based on BeiDou-3 communication described in the present invention;

[0052] Figure 3 This is a frame splicing operation flow chart of the FTU emergency communication method based on BeiDou-3 communication according to the present invention;

[0053] Figure 4 This is a flowchart of the emergency data processing of the FTU emergency communication method based on BeiDou-3 communication described in the present invention. DETAILED DESCRIPTION

[0054] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of the specific embodiments of the present invention is given in conjunction with the accompanying drawings. It is obvious that the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in this field without creative work should fall within the scope of protection of the present invention.

[0055] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0056] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0057] Example 1

[0058] Reference Figure 1 , which is the first embodiment of the present invention, provides an FTU emergency communication method based on BeiDou-3 communication, including:

[0059] S1: Based on the FTU device communication mode, it receives and measures signals, performs position calculation and two-way message communication;

[0060] S2: Based on the two-way message communication, processing the remaining length of the first data to be sent to obtain the reserved space;

[0061] S3: performing data framing based on the reserved space to speed up the first data transmission;

[0062] S4: judging and operating the emergency data in the first data.

[0063] It should be noted that through steps S1-S4, the embodiment is dedicated to improving the data transmission process, improving performance, enhancing system stability and response speed, so that both ordinary data and emergency events can be efficiently transmitted and processed.

[0064] Embodiment 2

[0065] Referring to Figures 1-4 For an embodiment of the present application, an FTU emergency communication method based on Beidou-3 communication is provided based on the previous embodiment, comprising:

[0066] In the embodiment of the present application, the above step S1 based on the FTU device communication mode, receiving and measuring signals, performing position calculation and bidirectional message communication include:

[0067] Install the FTU device at the designated location to ensure that the device can normally receive Beidou-3 satellite signals.

[0068] Connect the device power supply and ensure that the device has started.

[0069] According to the on-site situation, select the appropriate communication mode. If you choose to be based on Beidou-3 communication, enter the corresponding setting interface to ensure that the device can receive and send Beidou-3 signals.

[0070] If you choose to be based on 4G / 5G data transmission, configure the corresponding network parameters.

[0071] In another possible implementation, device parameters can also be manually configured, and detailed settings can be made through the device panel or computer software.

[0072] Automatic configuration can also be performed, and the device automatically identifies and configures the communication mode through the pre-set program.

[0073] Remote configuration can also be performed, and the device can be configured through network remote control, which is suitable for devices installed in places that are difficult to operate directly.

[0074] The user machine receives the RDSS signal broadcast by at least one GEO satellite, and simultaneously receives the RNSS signal of at least four MEO or IGSO satellites;

[0075] The user machine measures the time difference from when the RNSS signal is transmitted from the satellite to when it is received by the user machine.

[0076] The measured time difference parameter is sent to the master station through the GEO satellite.

[0077] The master station uses the received time difference parameters to calculate the location of the user terminal.

[0078] The master control station and user terminals perform two-way timing via GEO satellites to ensure time synchronization.

[0079] The user terminal conducts two-way message communication with the master control station via the GEO satellite to ensure timely data transmission.

[0080] like Figure 2 The figure below shows the BeiDou-3 positioning communication link diagram. The generalized RDSS system is functionally identical to the RDSS system. Its main advantages are twofold: first, it requires only one GEO satellite for coverage, which, while maintaining the same number of GEO satellites, increases coverage and system capacity. Second, it utilizes relative measurements from non-geostationary satellites for position calculation, resulting in a better satellite spatial geometry and higher positioning accuracy.

[0081] In another possible implementation, a single GEO satellite may be used for signal reception and communication.

[0082] GEO satellites and MEO / IGSO satellites can also be used in combination to improve the diversity and reliability of signal reception.

[0083] In the embodiment of the present application, in the above step S2, based on the two-way message communication, processing the remaining length of the first data to be sent to obtain the reserved space includes:

[0084] For the portion of the first data sent that fails to fully occupy the data transmission bandwidth, the remaining space is calculated and used as the reserved space.

[0085] Specifically, the first data refers to various data collected by the FTU (remote terminal unit) in the power system, such as voltage, current, power and other measurement values, as well as equipment status information. During normal operation, this data is regularly uploaded to the master station via the communication link for monitoring and management.

[0086] It should be noted that the BeiDou-3 system has a communication rule: each packet carries a maximum capacity of 1750 bytes, and after each transmission, the next hop must wait 60 seconds before sending the next hop's data. For example, if the current transmission is 1000 bytes, this means that 750 bytes of space are not fully utilized. If the current data is sent directly, any subsequent transmission will exceed the specified frequency limit and the message will not be sent.

[0087] In order to ensure data integrity and handle possible problems, this solution designs a strategy for handling the remaining length of the sent data.

[0088] Specifically, for data transmissions that fail to fully utilize the transmission bandwidth, the remaining data space is reserved. This mechanism allows for the use of this free space to record detailed error reports if data transmission errors occur, helping the receiver identify the problem and potentially providing the necessary information for subsequent repairs.

[0089] In the event of an emergency and the need to quickly deliver important information, the remaining space serves as an emergency channel for conveying key updates, ensuring that important business content can be effectively communicated under time constraints.

[0090] It should be noted that this step improves communication efficiency and reliability by finely managing data transmission and reserving space, taking into account accurate transmission under normal circumstances as well as remedial measures and priority guarantees under abnormal circumstances.

[0091] In another possible implementation, the remaining length may be processed using a fixed rule, such as reserving a fixed number of bytes for error reporting after each transmission.

[0092] The remaining length can also be adjusted dynamically, automatically adjusting the reserved space based on current communication needs and error rates.

[0093] A priority mechanism can also be introduced, where urgent data automatically occupies the remaining space and ordinary data is allocated on demand.

[0094] In the embodiment of the present application, the data splicing based on the reserved space in the above step S3 includes:

[0095] When the frame header and the first part of the data in the reserved space are ready, the program pauses sending until the second part of the data is received.

[0096] Specifically, the frame header and the first data segment wait for the second data segment to arrive before adding a frame trailer for data encapsulation and sending. Each transmission occupies the full data bandwidth, maximizing data transmission efficiency and solving the problems of slow transmission speed and limited data bandwidth in FTU real-time data communication. To address the common problems of low transmission efficiency and limited bandwidth of FTU (remote terminal unit) in real-time data communication, the present invention adopts an optimized splicing technology, specifically:

[0097] like Figure 3 As shown in Figure 1, when the frame header and the first part of the data are ready, the program pauses sending until the second part of the data is received. This is done to avoid unnecessary idle bandwidth and ensure that each frame of data can fully fill the bandwidth resources.

[0098] After obtaining a complete data sequence consisting of the frame header, the first data item, and the second data item, a frame trailer is added to form a complete data packet. This encapsulation process not only ensures data integrity but also improves the compactness of the encoded data, helping to reduce transmission delays in the network.

[0099] It should be noted that each transmission is performed according to this "full fill" strategy, meaning that the entire data bandwidth is fully utilized during each transmission, significantly improving data transmission efficiency. This approach overcomes the performance bottleneck caused by insufficient bandwidth in FTUs for real-time data transmission. This approach not only solves the problem of slow real-time data transmission speeds but also effectively utilizes limited data bandwidth, greatly enhancing the practicality of the communication system.

[0100] It should also be noted that this step combines the remaining data space and the new data to be sent in segments to maximize the efficiency of the sending space so as to achieve the purpose of emergency communication and sending error data reports.

[0101] When sending the second piece of data, the remaining space of the first piece can be used to maximize the utilization of data space. When an error occurs in the data, the remaining space can be used to send an error report. If communication is required, the transmission space can be maximized to send emergency communication data.

[0102] When a complete FTU error or urgent data appears within a packet, the data is sent directly without waiting for the next data entry to be filled. During data management and communication transmission, the program employs an intelligent strategy, using a block (paragraph) approach to manage and utilize limited data space. Specifically, for current data storage, it first evaluates the remaining space and calculates the portion that can be used for temporary storage or merging new data. When encountering urgent communication needs, such as FTU (remote terminal unit) errors or sudden important information, the program skips the wait for new frequencies to arrive and directly uses this free storage space for rapid transmission, ensuring that critical information is delivered immediately.

[0103] In everyday communications, if new data arrives and is compatible with existing data segments, the system seamlessly integrates it. This way, each piece of data maximizes the transmission channel, improving overall transmission efficiency. Similarly, when an error report is received, the program does not waste time but instead sends it immediately using the available space. This prevents data loss, reduces latency, and enhances system responsiveness and reliability.

[0104] In short, the core of this mechanism lies in dynamic optimization and real-time adaptation, which can ensure the effective transmission of data and maximize resource utilization, whether in routine data exchange or emergency situations.

[0105] In another possible implementation, simple splicing may be performed to splice the data in a fixed format and then send it.

[0106] It can also perform intelligent splicing and dynamically adjust the splicing strategy based on data type and urgency.

[0107] It can also perform layered framing to divide data into different priority layers and send high-priority data first.

[0108] In the embodiment of the present application, the determination and operation of the emergency data in the first data in the above step S4 includes:

[0109] Emergency data refers to data that is prioritized for processing and transmission due to its importance or urgency among normally collected data. Examples include abnormal measurements, abnormal equipment status, and fault alarm information. This data needs to be transmitted immediately so that the master station can respond quickly to ensure the stability and security of the power system.

[0110] Specifically, emergency data includes:

[0111] The measurement value is outside the normal range:

[0112] Abnormal voltage: For example, the voltage exceeds the rated range (too high or too low).

[0113] Abnormal current flow: For example, a sudden increase or decrease in current flow may indicate an overload or short circuit in the device.

[0114] Power anomalies: For example, sudden changes in power factor may indicate unstable grid operation.

[0115] These data are marked as urgent when they are outside normal ranges because they may indicate a fault or potential danger in the power grid.

[0116] Abnormal device status:

[0117] Abnormal circuit breaker status: For example, the circuit breaker suddenly trips or fails to close normally.

[0118] Abnormal switch status: For example, the switch cannot operate normally or the status is unstable.

[0119] Sensor failure: For example, failure of temperature sensor, humidity sensor or other key sensors.

[0120] When an abnormality occurs, this device status information will be marked as emergency data so that the master station can take quick action.

[0121] Abnormal environmental monitoring data:

[0122] Overtemperature: For example, a sudden increase in device or ambient temperature may indicate that the device is overheating or the environment is dangerous.

[0123] Abnormal humidity: For example, a sudden increase in humidity may indicate that the device has been exposed to moisture or other environmental problems.

[0124] Smoke or fire alarms: For example, if smoke or fire is detected, immediate action may be required.

[0125] When these environmental monitoring data are abnormal, they will be marked as emergency data so that the master station can respond in time.

[0126] Fault alarm information:

[0127] Fault codes: For example, fault codes detected by the FTU, which may indicate equipment failure or communication interruption.

[0128] Protection action information: For example, the operation of a relay protection device may indicate a short circuit or other serious problems in the power grid.

[0129] These fault alarm messages are usually marked as urgent data so that the master station can quickly locate and solve the problem.

[0130] Real-time monitoring of data mutations:

[0131] Sudden changes in current flow, such as a sudden increase or decrease in current flow, may indicate a device overload or short circuit.

[0132] Sudden voltage changes: For example, sudden voltage fluctuations may indicate unstable grid operation.

[0133] Power surges: Sudden changes in power, such as sudden changes in power, may indicate abnormal grid load or equipment failure.

[0134] When these real-time monitoring data suddenly change, they will be marked as urgent data so that the master station can respond quickly.

[0135] Communication link abnormality:

[0136] Communication interruption: For example, the communication link between the FTU and the master station is suddenly interrupted.

[0137] Data loss: For example, packet loss or transmission errors are detected.

[0138] These communication link abnormality information will be marked as urgent data so that the master station can quickly locate and solve the problem.

[0139] Key business data:

[0140] Circuit breaker status: For example, a sudden change in the circuit breaker status may indicate abnormal grid operation.

[0141] Switch status: For example, a sudden change in switch status may indicate abnormal equipment operation.

[0142] Equipment operating status: For example, a sudden change in the equipment operating status may indicate equipment failure.

[0143] When anomalies occur in these critical business data, they will be marked as urgent data so that the master station can take quick action.

[0144] like Figure 4 As shown, the first judgment is made: whether urgent data is received;

[0145] If the result of the first judgment is yes, the second judgment is performed: whether there is data before the urgent data;

[0146] If the first judgment result is no, wait until the data fills the BeiDou-3 communication transmission length before sending the data;

[0147] If the second judgment result is yes, the urgent data is sent directly and the data before the urgent data is saved;

[0148] If the second judgment result is no, the urgent data is sent.

[0149] For example, if the current data already occupies 1000 bytes and 300 bytes of error or emergency communication data are received, the program will retain the remaining 1000 bytes and directly send the error or emergency communication data, ensuring timely reporting of the error or emergency data. When the system is operating under load and a large amount of critical information has accumulated, such as occupying 1500 bytes of data storage space, a 300-byte emergency error or communication data is suddenly received. Faced with this emergency, the program adopts an efficient handling strategy: it does not attempt to overwrite or replace the existing 1500 bytes of data. Instead, it decides to maintain the status quo and prioritize the new emergency information. This 1500 bytes of data will be sent at the next scheduled time. To ensure a prompt response to the critical error or emergency communication request, the program chooses to insert the 300 bytes of new content into the header of the existing data, while retaining the previous data. This serves two key purposes: first, it avoids the loss of important information due to overwriting old data; second, it ensures that the emergency information can be transmitted immediately for subsequent analysis and decision-making.

[0150] It should be noted that, despite the current high volume of information carried by the system, it is able to adjust its operating mode at critical moments to adapt to unexpected situations and maximize the needs of real-time communication. This is a data management strategy based on priority and flexibility, designed to maximize the system's responsiveness and information integrity.

[0151] In another possible implementation, fixed emergency data identification rules may be set based on rule-based judgment.

[0152] Example 3

[0153] The above is a schematic diagram of the BeiDou-3-based FTU emergency communication method of this embodiment. It should be noted that the technical solution of the BeiDou-3-based FTU emergency communication system and the technical solution of the BeiDou-3-based FTU emergency communication method are based on the same concept. For details not described in detail in the technical solution of the BeiDou-3-based FTU emergency communication system in this embodiment, please refer to the description of the technical solution of the BeiDou-3-based FTU emergency communication method.

[0154] This embodiment also provides a system for an FTU emergency communication method based on BeiDou-3 communication, including:

[0155] Device configuration module, used to install and configure FTU devices and set the communication mode of the devices;

[0156] The signal processing and position calculation module is used to receive and measure signals through the user terminal based on the communication mode, and perform position calculation and two-way message communication through the master control station;

[0157] A data management module is used to process the remaining length of the sent data based on two-way message communication;

[0158] A data framing module is used to perform data framing based on the remaining length of the transmitted data;

[0159] Emergency data processing module, used to judge and operate FTU emergency data.

[0160] This embodiment further provides a computing device applicable to the FTU emergency communication method based on BeiDou-3 communication, including:

[0161] Memory and processor; the memory is used to store computer-executable instructions, and the processor is used to execute computer-executable instructions to implement the FTU emergency communication method based on Beidou-3 communication proposed in the above embodiment.

[0162] This embodiment also provides a storage medium on which a computer program is stored. When the program is executed by a processor, the FTU emergency communication method based on BeiDou-3 communication proposed in the above embodiment is implemented.

[0163] The storage medium proposed in this embodiment and the FTU emergency communication method based on BeiDou-3 communication proposed in the above embodiment belong to the same inventive concept. For technical details not described in detail in this embodiment, please refer to the above embodiment, and this embodiment has the same beneficial effects as the above embodiment.

[0164] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A FTU emergency communication method based on BeiDou-3 communication, characterized in that: include: Based on the FTU device communication mode, it receives and measures signals, performs position calculation and two-way message communication; Based on the two-way message communication, processing the remaining length of the first data to be sent to obtain the reserved space; Performing data framing based on the reserved space to speed up the first data transmission; judging and operating the emergency data in the first data; The processing of the remaining length of the first data to be sent based on the two-way message communication includes: For a portion of the first data sent that does not fully occupy the data transmission bandwidth, calculate the remaining space and use the remaining space as a reserved space; The data splicing based on the reserved space includes: When the frame header and the first part of the data in the reserved space are ready, the program pauses sending until the second part of the data is received; The data splicing based on the reserved space further includes: Obtain a complete data sequence including the frame header, the first data piece, and the second data piece; Adding a frame tail to the complete data sequence to form a complete data packet; The judging and operating the emergency data in the first data includes: Make the first judgment: whether urgent data is received; If the result of the first judgment is yes, the second judgment is performed: whether there is data before the urgent data; If the first judgment result is no, wait until the data fills the BeiDou-3 communication transmission length before sending the data; If the second judgment result is yes, the urgent data is sent directly and the data before the urgent data is saved; If the second judgment result is no, the urgent data is sent.

2. The FTU emergency communication method based on BeiDou-3 communication as claimed in claim 1, wherein: The receiving and measuring of signals, position calculation and two-way message communication based on the FTU device communication mode include: The user terminal receives RDSS signals broadcast by at least one GEO satellite and RNSS signals from at least four MEO or IGSO satellites; The user terminal measures the time difference between the RNSS signal being transmitted from the satellite and being received by the user terminal; The measured time difference parameters are sent to the master control station via the GEO satellite.

3. The FTU emergency communication method based on BeiDou-3 communication as claimed in claim 2, characterized in that The receiving and measuring signals, performing position calculation and two-way message communication based on the FTU device communication mode also includes: The master station uses the received time difference parameters to calculate the location of the user terminal; The master control station and user terminals perform two-way timing via GEO satellites; The user terminal conducts two-way message communication with the master control station via the GEO satellite.

4. A system using the FTU emergency communication method based on BeiDou-3 communication as described in any one of claims 1 to 3, characterized in that: include: The signal processing and position calculation module is used to receive and measure signals, perform position calculation and two-way message communication based on the FTU device communication mode; A data management module, configured to process a remaining length of the first data to be sent based on the two-way message communication to obtain a reserved space; A data framing module is used to perform data framing based on the reserved space; The emergency data processing module is used to judge and operate the emergency data in the first data.

5. A computing device comprising: memory and processor; The memory is used to store computer-executable instructions, and the processor is used to execute the computer-executable instructions. When the computer-executable instructions are executed by the processor, the steps of the FTU emergency communication method based on Beidou-3 communication as described in any one of claims 1 to 3 are implemented.

6. A computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the steps of the FTU emergency communication method based on BeiDou-3 communication as described in any one of claims 1 to 3.

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