Power emergency wireless communication data transmission method based on short-wave communication

Abstract

The invention relates to the technical field of electric power emergency communication, in particular to an electric power emergency wireless communication data transmission method based on short-wave communication, which comprises the following steps of: firstly, constructing a short-wave communication system, selecting a short-wave radio station with a specific function and matched equipment, and correctly connecting and installing according to different working modes; then, a comprehensive communication process is designed, including autonomous frequency selection and link establishment, voice service, short message service and message service processes, so as to ensure effective transmission of various types of data; in the aspects of data processing and management, various functions are realized through carefully designed business service software and business terminal software, and stable operation of the system is guaranteed; meanwhile, safety controllable safeguard measures are implemented from the two aspects of hardware and software, self-developed equipment is localized in the aspect of hardware, outsourcing equipment is strictly managed, key application software is independently developed in the aspect of software, and safety management is enhanced. According to the invention, the stability, reliability and communication performance of the power emergency communication system are improved, and the power emergency communication capability is effectively enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power emergency communication, and in particular to an electric power emergency wireless communication data transmission method based on shortwave communication. Background Art

[0002] Communication technology plays a vital role in the operation and management of modern power systems. With the continuous expansion of the scale of power grids and the increasing requirements for power supply reliability, the importance of power emergency communications has become increasingly prominent. Especially in the face of natural disasters (such as earthquakes, floods, typhoons, etc.) and major emergencies (such as terrorist attacks, large-scale power outages, etc.), timely, stable and efficient communication guarantees are the key factors to ensure the smooth implementation of power grid emergency command, repair and rescue work.

[0003] At present, the traditional power communication network is mainly based on optical fiber communication technology. However, in response to the needs of distributed multi-subject source-grid-load-storage new energy access and group dispatching and group control in the process of new power system construction and development, it has exposed many limitations. On the one hand, optical fiber communication has shortcomings in distribution, and it is difficult to cover some remote areas or temporary emergency scenarios, resulting in the emergence of communication blind spots in some areas; on the other hand, optical fiber communication construction costs are high, the construction period is long, and the implementation is difficult, which is particularly prominent in emergency situations, and it is impossible to quickly build an effective communication network.

[0004] In addition, external force damage is an important risk factor affecting the security of the power grid. The current means of video monitoring of transmission lines are not only costly, but also easily affected by factors such as weather, making it difficult to achieve effective all-weather and all-round monitoring. For example, in severe weather conditions such as heavy rain, heavy snow, and heavy fog, video surveillance equipment may not work properly, resulting in the inability to obtain line status information in a timely manner. The 2021 Henan flood brought new severe challenges to power emergencies. This disaster highlighted the urgency of quickly building emergency communication networks and emergency control networks. Traditional ground networks often cannot achieve full coverage in extreme disaster situations. The problem of communication interruption seriously affects the timely development of emergency rescue work. Therefore, in response to the above problems, a power emergency wireless communication data transmission method based on shortwave communication is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a power emergency wireless communication data transmission method based on shortwave communication to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A power emergency wireless communication data transmission method based on shortwave communication comprises the following steps: Step S1, constructing a shortwave communication system, equipped with functions and equipment to achieve wireless communication in power emergency scenarios; Step S2: Design the communication process, including autonomous frequency selection and link establishment, voice service, SMS service and message service process, to ensure the effective transmission of different types of data; Step S3: perform data processing and management, and realize various functions through business service software and business terminal software to ensure stable operation of the communication system; Step S4: Implement safe and controllable protection, and take measures from both hardware and software aspects to ensure the security and reliability of the system.

[0007] Preferably, constructing a shortwave communication system includes: A 20 / 125W shortwave radio with multiple communication functions is selected as the core equipment. This radio can realize multiple communication services and is equipped with batteries, inverters, antennas, tuners, matchers and service terminals to build a complete communication subsystem. According to different working modes, correctly connect each device to ensure that in different scenarios such as backpack or vehicle / fixed, the radio is firmly connected to other devices, and the antenna installation meets the requirements to achieve effective signal transmission.

[0008] Preferably, the autonomous frequency selection and link establishment process includes: The calling and called radio stations perform initialization operations respectively, and the business service software controls the radio station to enter the autonomous frequency selection mode and set the corresponding parameters; After the radio completes channel prefabrication, it reports the status, the service terminal initiates the service, and the service software controls the radio to initiate a call and link establishment; The two radio stations complete the link establishment confirmation through a series of signal exchanges, and report the link establishment success to the business service software and business terminal, and then enter the business communication state; After being turned on, the radio enters a broadband receiving standby state and can initiate a call on any frequency or empirical frequency. It uses full-band signal analysis and processing technology to capture call signals, and optimizes the frequency to establish a link based on strategies such as frequency prediction, scanning detection, fast link establishment and automatic link maintenance. It can automatically monitor channel quality and switch channels during communication.

[0009] Preferably, the voice service process includes: Business terminal 1 initiates a voice call request, which is forwarded to shortwave radio station 1 by business service 1, transmitted to shortwave radio station 2 through the air interface protocol, reported to business service 2 and then forwarded to business terminal 2, and business terminal 2 prompts the incoming call; Business service 2 returns a response, and after reverse transmission, business terminal 1 prompts that the call is connected. Both parties use PTT control to collect, encode, transmit, decode and play voice data. After the call ends, the call process is completed by hanging up the request.

[0010] Preferably, the SMS service process includes: Business terminal 1 initiates a text message sending request, which includes the source user ID, destination user ID and text message content, which is forwarded to shortwave radio station 1 by business service 1 and sent to shortwave radio station 2 through the air interface protocol. After being reported to business service 2, business terminal 2 receives and presents the text message.

[0011] Preferably, the message service process includes: Business terminal 1 selects a local file to initiate a sending request. After receiving the file, business service 1 packages the file and sends a package request to shortwave radio station 1, while returning the sending progress to business terminal 1. Shortwave radio 1 sends the sub-packetized data to shortwave radio 2 through the air interface protocol, reports it to business service 2, business service 2 caches the data, and notifies business terminal 2 after receiving the data, and business terminal 2 stores the file.

[0012] Preferably, data processing and management include: The business service software is centered on "business" and realizes the access management of multiple business terminals, management of multiple radio stations, time-division multiplexing of terminals to radio stations, log storage, business detailed information recording and fault recovery functions. The software architecture includes the system layer responsible for basic functions such as database connection, log management, storage management, etc. The protocol layer realizes the encapsulation and parsing of SIP protocol, file transfer protocol, and shortwave radio control protocol, and provides a unified API interface. The application layer completes terminal management, radio station management, voice service adaptation, SMS service adaptation, message service adaptation, business process recording and other application services; Among them, the SIP protocol in the protocol layer implements encapsulation and parsing in accordance with RFC3621, supports registration, voice, SMS and other processes and communicates with the application layer software bus; the file transfer protocol implements a custom ARQ protocol, supports radio time-division multiplexing and breakpoint continuation; the shortwave radio control protocol provides interfaces such as radio status query, frequency setting, sideband setting, data sending and SMS sending; The business terminal software adopts the MVC design mode based on the JavaFx application framework, provides a human-computer interaction interface, and realizes six major functions: login management, radio station management, business management, system management, log management, and map management; Among them, the login management module includes local login verification of user legitimacy and system authentication functions; the radio management module can control the radio fixed frequency, autonomous frequency selection working mode and query status; the service management module supports voice, SMS, file services and historical record viewing; the system management module provides system parameter configuration, user management, contact management and other functions; the log management module records system operations, operations and error logs; the map management module realizes map data import and user location mapping.

[0013] Preferably, the safety and controllable guarantees include: Hardware safety and controllability: Self-developed equipment uses domestic electronic components, including resistors, capacitors, inductors, crystal oscillators, connectors, diodes, fuses, switches, relays, cables, and integrated circuits. Some key components are customized in cooperation with domestic manufacturers to ensure the localization rate. For purchased equipment, we choose domestic mainstream brands. By strictly checking product models, specifications, manufacturers and other information and the qualified supplier system, we can ensure the quality of equipment and the stability of supply. Among them, the electronic components of self-developed equipment, such as resistors, capacitors, inductors and other passive devices, connectors, integrated circuits and mechanical structures are all domestically produced. Inspection of purchased equipment includes product model, specification, appearance, manufacturer / supplier, quality grade, product source, main performance parameters, organization appraisal department, appraisal and testing agency, reference unit price, annual supply capacity, production and supply cycle, etc. The qualified supplier system regularly reviews the supplier's production and processing capabilities and product quality; Software is safe and controllable: Key application software, including control software and application software, are independently developed and have all intellectual property rights, ensuring that the software is independent and controllable; Among them, the control software includes radio embedded control software and business service software, and the application software includes business terminal software and business service software.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. Improved stability and reliability: Hardware: Domestic electronic components of self-developed equipment ensure independent supply of key components and reduce interference from external factors; Strict management of purchased equipment ensures quality and supply stability, and strengthens the hardware foundation in many aspects; Software: Self-developed software achieves deep customization and optimization to avoid compatibility and security issues; A complete security management system ensures stable operation of the software and prevents external attacks and illegal operations; 2. Communication performance optimization: Advantages of shortwave communication technology: The autonomous frequency selection function enhances anti-interference capability, quickly establishes reliable links, and improves communication success rate; Multiple communication services support to meet diverse needs and ensure efficient and accurate transmission of different data; Efficient data processing and management: The layered architecture of business software and the collaborative work of functional modules improve data processing efficiency and accuracy; The terminal software design optimizes human-computer interaction and business operations, and the recording function facilitates information tracing and analysis; 3. Strengthening emergency communication capabilities: Adapt to complex scenarios: The shortwave communication feature enables it to ensure communication even in extreme environments, and a variety of communication processes and functions support emergency information exchange; Flexible configuration and strong scalability: The equipment can be installed flexibly and can be integrated with other communication methods to adapt to different scenarios and expand communication methods. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0016] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with specific implementation methods.

[0017] Example: This embodiment provides a technical solution: A power emergency wireless communication data transmission method based on shortwave communication comprises the following steps: Step S1, constructing a shortwave communication system, equipped with functions and equipment to achieve wireless communication in power emergency scenarios; Step S2: Design the communication process, including autonomous frequency selection and link establishment, voice service, SMS service and message service process, to ensure the effective transmission of different types of data; Step S3: perform data processing and management, and realize various functions through business service software and business terminal software to ensure stable operation of the communication system; Step S4: Implement safe and controllable protection, and take measures from both hardware and software aspects to ensure the security and reliability of the system.

[0018] In this embodiment, the specific steps of step S1 are: Step S1-1, core equipment selection and configuration: Selection of shortwave radio: Haige's new generation 20 / 125W shortwave radio is selected as the core communication equipment. This radio has the functions of fixed frequency communication, adaptive communication, and autonomous frequency selection communication. It can realize analog calls, digital calls, datagrams, data streams, ARQ (automatic retransmission request), key-controlled reports, voice text messages and other communication services to meet the needs of different types of data transmission in power emergency communications; Step S1-1-1, auxiliary equipment configuration: Power supply equipment: Equipped with 24V / 100Ah lithium iron carbonate battery to provide stable power support for shortwave radio and other related equipment, ensuring continuous operation even if external power is interrupted in emergency situations; at the same time, it is equipped with a 24V to 220V on-board 3kW inverter to convert the battery DC power into the AC power required by the equipment when needed, meeting the power needs of equipment such as computer terminals; Antenna and tuning equipment: A 44-meter dipole antenna is used, with an operating frequency range of 2-30MHz, a standing wave ratio of ≤2 (with antenna tuner), a power handling power of ≤500W, directivity and horizontal polarization, a nominal impedance of 50Ω (with antenna tuner), an antenna length of 44 meters, and a height of 7.2 meters. This antenna has a simple structure, good technical performance, and strong environmental adaptability, and is suitable for use in complex environments. With an antenna tuner (such as antenna tuner PA2.891.0118 (D008)), impedance matching between the radio output and the antenna is achieved, so that the antenna obtains the maximum input RF power, while providing a good path for the radio to receive RF signals, ensuring signal transmission efficiency. Matching and connecting equipment: Use single-ended and double-ended matching devices with a carrying power of ≤500W, a frequency range of 2-30MHz, a standing wave ratio of ≤2, an input impedance of 50Ω, and an output impedance of 600Ω to ensure matching of signals when transmitted between different devices and reduce signal reflection and loss; Business terminal equipment: Two business terminals (including software) are configured to provide users with a human-computer interactive operation interface, realize voice, SMS, and message communication operation functions, and support time-sharing with SIP telephone terminals to share a set of shortwave radio stations, which is convenient for power emergency personnel to perform communication operations and business processing; Step S1-2, equipment connection and installation: Step S1-2-1, backpack installation (20W power state): When the radio works at 20W power, such as when it is used in a backpack in a mobile operation scenario for emergency repair personnel, place the battery with the contact point facing upwards at the installation location, then install the bottom of the transceiver on the battery, making sure that the contact points of the transceiver and the battery are in the same direction, and fasten the buckle to complete the installation of the radio; when installing, pay attention to aligning the pins and sockets, and tighten the screw sleeve while pushing forward to ensure that all components are firmly connected and in good contact. At this time, no external cable is required, and it can be put into use as long as the transceiver, battery pack and antenna are installed, realizing convenient mobile emergency communication; Step S1-2-2, vehicle-mounted / fixed installation (125W power state): If the radio is used in a vehicle or fixed station at 125W power, first decide whether to remove the vehicle-mounted vibration isolator from the 125W power amplifier and fix it on the operating table according to the actual situation, then install the 125W power amplifier on the vibration isolator and fasten the lock and tighten it; then put the transceiver into the corresponding installation position in the power amplifier, pay attention to the contact point direction of the transceiver and the power amplifier to keep the same, and then tighten the lock; use the short RF cable in the attachment to connect the antenna port of the transceiver and the RF port of the 125W power amplifier, and use the power amplifier control cable to connect the integrated port of the transceiver and the control port of the power amplifier to complete the installation of the 125W radio transceiver; For a 125W antenna tuner, if it needs to be fixed on the roof or installation platform, first remove the antenna tuner host from the antenna tuner isolator, fix the antenna tuner isolator on the installation platform with fasteners, and then install the antenna tuner host; if it does not need to be fixed, place it directly at the installation location; when connecting the antenna, solder the antenna feeder to the welding piece and tighten the butterfly nut on the antenna terminal to ensure good electrical contact; when using a dipole antenna, the antenna tuner should be connected to the impedance converter first, and then connected to the dipole antenna through the impedance converter to ensure that the antenna system is installed correctly and the signal transmission is stable; Through the above detailed steps, a complete and reliable shortwave communication system is built, equipped with necessary functions and equipment, so that it can effectively realize wireless communication in power emergency scenarios and provide strong support for power emergency command, data transmission, etc.

[0019] In this embodiment, the specific steps of step S2 are as follows: Step S2-1, autonomous frequency selection and link establishment process: Initialization settings: The calling radio station and the called radio station perform initialization operations respectively; the business service software controls the calling radio station to enter the autonomous frequency selection mode, sets the radio station's home address (its own address identifier) ​​and the frequency band for frequency selection and link establishment (determines a frequency range for finding a suitable communication frequency); The calling station enters the channel pre-production process and prepares the channel according to the preset parameters, such as adjusting relevant parameters to adapt to the upcoming communication task. After the pre-production is completed, it reports to the business service software and enters the autonomous frequency selection state; Similarly, the called radio station is also controlled by the business service software to enter the autonomous frequency selection mode, complete similar local address setting, frequency selection and link establishment frequency band setting and channel pre-production process, and report to enter the autonomous frequency selection state; Service initiation and frequency selection: The business terminal initiates a business request, which triggers the subsequent link establishment operation; The business service software detects that the current radio station is not in the link-building state, and controls the calling shortwave radio station to initiate a call link-building signal according to the called radio station address (other address) in the business terminal request; The calling shortwave radio station initiates a call and establishes a link on the selected initial frequency (which can be the default frequency or the frequency set according to experience). At this time, the radio station uses its full-band signal analysis and processing technology to quickly scan the entire frequency band and try to capture the signal of the called radio station. Due to the use of autonomous frequency selection technology, the radio station has the ability to predict the frequency range that may be available based on factors such as previous communication data and the current environment. At the same time, it performs scanning detection to detect the signal quality and interference of each frequency in the frequency band. Chain building interaction and confirmation: After receiving the link establishment request from the calling station, the called station responds to the request and sends a response signal to the calling station; After receiving the response, the calling station performs the link establishment confirmation operation, sends a confirmation message to the called station, and reports the link establishment success to the business service software; After receiving the confirmation message from the calling station, the called station also reports the link establishment success to the business service software; Enter business communications: The business service software reports the link establishment success message to the calling and called business terminals respectively; After receiving the notification of successful link establishment, the business terminals of both parties enter the business communication state and prepare for data transmission. At this time, the communication link has been successfully established, and subsequent business communications such as voice, SMS, and messages can be carried out; Step S2-2, voice service process: Call request initiation and transmission: The user of service terminal 1 inputs the called user ID (identity information of the called party) to initiate a voice call request. The request message also carries the source user ID (the identification of service terminal 1 itself), and sends the request to service service 1; After receiving the voice call request, business service 1 forwards the call request to shortwave radio station 1 according to preset rules and configuration information; Air interface transmission and called response After receiving the voice call request, shortwave radio station 1 sends the request message to shortwave radio station 2 on the other side through the air interface protocol (a protocol used to transmit data wirelessly in the air); After receiving the air interface message, shortwave radio station 2 reports the voice call request to business service 2; Business service 2 forwards the call request to business terminal 2 according to the terminal information corresponding to the called user ID. After receiving the request, business terminal 2 performs an incoming call prompt, such as ringing, vibrating, or displaying an incoming call interface; Answer and connect: Business service 2 returns a voice call request response message to shortwave radio station 2. The response message contains the source user ID, the destination user ID, and information indicating the response result (such as success, failure, etc.); Shortwave radio station 2 sends a response message to shortwave radio station 1 via the air interface protocol; After receiving the response message, shortwave radio station 1 reports it to business service 1, which then forwards the response message to business terminal 1. Business terminal 1 prompts the user to connect the voice according to the response result, and both parties are ready to talk; Call process control: The user of service terminal 1 requests to turn on PTT (Push-to-Talk), and sends the request to service 1; Business service 1 forwards the PTT start command to shortwave radio station 1; The service terminal 1 collects the user's voice data, encodes it, and sends the encoded voice data to the shortwave radio station 1; After receiving the voice data, shortwave radio station 1 sends the voice data through the wireless channel, and after receiving the voice data, shortwave radio station 2 forwards it to service terminal 2; Service terminal 2 decodes and plays the received voice data, so that the user can hear the other party's voice; Call end processing: The user of service terminal 1 requests to close PTT and sends a request to service service 1; Business service 1 forwards the PTT request to shortwave radio station 1; If the user of service terminal 2 wants to talk, repeat the above service terminal 2 request to open PTT and subsequent related steps to achieve two-way communication; When the call ends, service terminal 1 sends an on-hook request, carrying the source user ID and the destination user ID, to service service 1; Business service 1 forwards the on-hook request to shortwave radio station 1, and shortwave radio station 1 sends the on-hook response to shortwave radio station 2 through the air interface protocol; After receiving the air interface message, the shortwave radio 2 forwards it to the business service 2, and the business service 2 forwards the on-hook instruction to the business terminal 2. After receiving the on-hook instruction, the business terminal 2 automatically hangs up, completing the call process; Step S2-3, SMS service process: SMS sending request initiated: After editing the SMS content, the user of service terminal 1 enters the destination user ID and initiates a SMS service request. The request message contains the source user ID, destination user ID and SMS content, and then sends the request to service service 1. Request forwarding and air interface transmission After receiving the SMS sending request, business service 1 forwards the request to shortwave radio station 1 according to the communication link configuration; After receiving the SMS request, shortwave radio station 1 uses the air interface protocol to send the request message to shortwave radio station 2 on the other side; SMS reception and presentation: After receiving the air interface message, shortwave radio station 2 reports the content of the SMS to business service 2; After receiving the SMS content, business service 2 sends the SMS to business terminal 2. After receiving the SMS, business terminal 2 presents it on the interface so that the user can view the SMS content; Step S2-4, message business process: File selection and send request initiation: The user of service terminal 1 performs a file sending operation and selects a file to be sent in the local device; The user initiates a file sending service request, which carries information such as the source user ID, destination user ID, file name, and file content, and sends the request to service 1; File subpackaging and transmission preparation: After receiving the file sending request, business service 1 performs packet processing on the file according to the communication protocol and channel conditions, divides the large file into smaller data packets suitable for shortwave communication transmission, and determines the total number of packets and the number of each sub-packet; Business service 1 sends a file sub-packet sending request to shortwave radio station 1. The request carries detailed information such as source user ID, destination user ID, total number of packets, the first packet, data content, etc. Business service 1 returns the file sending progress to business terminal 1 so that the sending user can understand the progress of file sending. Air interface data transmission and reception buffer Shortwave radio station 1 sends the packetized data to shortwave radio station 2 via the air interface protocol; After receiving the air interface data, shortwave radio station 2 reports the data to business service 2. Business service 2 caches the received file sub-packet data and waits for all sub-packet data to be received. File reception and storage: When the business service 2 detects that the file data reception is completed, it sends a file reception notification to the business terminal 2; After receiving the notification, the service terminal 2 prompts the user on the interface that the file has been received, displays the file name, and stores the file in the specified local location, completing the file transmission and reception process; Through the above detailed autonomous frequency selection and link establishment, voice service, SMS service and message service processes, it is ensured that in power emergency scenarios, different types of data (voice, SMS, message) can be effectively, stably and reliably transmitted through the shortwave communication system to meet business needs such as power emergency command, information exchange and data collection.

[0020] In this embodiment, step S3 includes the following specific steps: Step S3-1: Business service software function implementation: Architecture layering and module division: The business service software adopts a layered architecture, which is divided into the system layer, protocol layer and application layer. The system layer is the basic platform for software operation, including modules such as database connection, log management, and storage management. The database module encapsulates common operations such as insertion and query of MySQL and Sqllite databases, shields the differences in underlying databases, and provides a unified interface for upper-layer application software. The log module supports real-time display and storage of software operation logs in files through the network, which is convenient for system operation status monitoring and troubleshooting. The storage module stores the message transmission status in real time, and realizes the breakpoint resume function in the event of equipment failure or software restart, ensuring the continuity of data transmission. The network protocol module encapsulates TCP, UDP, serial port and other protocols, regards them as ports, and provides a standard interface for upper-layer applications. The protocol layer is responsible for providing basic system applications and programming APIs to the upper-layer software, mainly including the encapsulation and parsing of the SIP protocol, file transfer protocol, and shortwave radio control protocol; the SIP protocol module implements the SIP protocol encapsulation and parsing in accordance with RFC3621, supports common processes such as registration, voice, and SMS, and communicates with the application layer through the software bus; the file transfer protocol module implements a custom ARQ protocol, supports radio time-division multiplexing and breakpoint resumption, and ensures the reliability and efficiency of file transfer; the shortwave radio control protocol module adopts a private protocol, provides common business interfaces such as shortwave radio status query, frequency setting, sideband setting, data sending, and SMS sending, to achieve effective control of the radio; The application layer mainly implements business adaptation application services, covering modules such as terminal management, radio station management, voice business adaptation, SMS business adaptation, message business adaptation, and business process recording. The terminal management module completes the registration and status management of SIP phones and business terminals, controls the business initiation process, and realizes time-sharing multiplexing of the same shortwave radio station by multiple terminals, thereby improving equipment utilization. The voice adaptation module adapts standard SIP voice to shortwave radio voice and sends it to the target terminal through the shortwave channel. The SMS adaptation module adapts standard SIP SMS to shortwave radio fixed-frequency messages for transmission. The message adaptation module receives messages uploaded by the business terminal, performs flow control and breakpoint continuation according to the shortwave radio sending status, and ensures accurate and complete transmission of messages. The radio station management module monitors the current radio station status in real time, records it in the database, and issues an alarm when the main radio station fails and automatically switches to the backup radio station, realizing hot-swap seamless switching to ensure uninterrupted communication. The business recording module records business process information in real time to a local or designated database for subsequent query and analysis. External interface design and communication adaptation: The business service software is designed with interfaces with a variety of external devices to achieve collaborative work with other system components; the SIP phone interface is connected via an Ethernet port, following the standard RFC3621 protocol, and is used for SIP phone registration, voice and SMS sending, ensuring compatibility with SIP phone terminals and smooth communication; the business terminal interface is also connected via an Ethernet port, supporting business terminal registration, voice, SMS and message sending, where voice and SMS follow the RFC3621 protocol, and message sending uses the ARQ protocol to achieve efficient data interaction between the business terminal and the service software; the shortwave radio interface is connected via an Ethernet port, using a private protocol to control and manage the shortwave radio, achieving precise operation and status acquisition of the radio; the database interface is connected via an RS422 serial port for business log recording and analysis, supporting multiple databases such as MySQL and Sqllite, facilitating data storage and management; Step S3-2: Business terminal software function implementation: Architecture and functional module division: The business terminal software is based on the JavaFx application framework and adopts the MVC design pattern. It is divided into three basic parts: interface (UI), business logic control (Controller) and data model (Model); the interface design layer provides human-computer interaction pages, including login interface, business window, fixed frequency and autonomous frequency selection mode interface, system configuration interface, map interface, etc., and adjusts the layout and style through FXML and CSS to present users with a simple, beautiful and easy-to-operate interface; the login interface realizes the user's local login and system authentication functions, verifies the user's legitimacy, and ensures safe access to the system; the business window provides voice, SMS, file and other business operation entrances; the fixed frequency and autonomous frequency selection mode interface facilitates users to control the radio working mode; the system configuration interface is used to set business service equipment IP, system security parameters, general frequency selection parameters, map information path, file receiving path and other system operation related parameters; the map interface can display map information and support users to view location and other related information on the map; The business logic control layer is responsible for coordinating the interaction between the interface and the data model, responding to user operations, remotely controlling the shortwave radio station, and executing the business input and output presentation logic; for example, in the radio station management function, according to the user's operating instructions on the interface, the radio station is controlled to enter the fixed frequency or autonomous frequency selection working mode, the corresponding parameters are set, and the radio station status information is obtained in real time for display; in the business management function, the session windows of voice, SMS, and file services are managed, and business operation processes such as making / receiving voice calls, sending / receiving SMS, uploading / downloading files, etc. are processed, and relevant business history information is recorded; in the system management function, system parameter configuration, user management, contact management and other operations are executed to ensure the system personalized settings and user information management requirements; in the log management function, the recording and query operations of log information are controlled to facilitate users to view system operation, operation and error logs, so as to timely discover and solve problems; in the map management function, map data import, user control operations on the map and mapping display of user locations on the map are processed to provide users with location-related information services; The data model layer is responsible for managing business data, interacting with the business logic control layer, and providing data storage, query and update functions; for example, in the user management function, it stores user information (user name, password, authority, creation time, last modification time, etc.), and supports the creation, deletion and modification of user information; in the contact management function, it manages contact information (user name, user number, user type, radio address, user location, user group, etc.), implements group management of contact information, and supports manual or batch import / export operations; in business data processing, such as communication records of voice services, SMS content of SMS services, file information of message services, etc., it is responsible for data storage and management to ensure data integrity and consistency; Internal communication and external interface interaction: The business terminal software uses message queues for internal communication to ensure the orderliness and efficiency of information transmission between different modules. For example, when a user clicks the send SMS button on the interface, the interface layer encapsulates the SMS request into a message and sends it to the business logic control layer. After processing the request, the business logic control layer passes the relevant data to the data model layer for storage, and at the same time feeds back the processing results to the interface layer through the message queue for display. The business terminal software interacts with external devices through specific interfaces; it connects with the business service software interface through a network port, following standard protocols (such as RFC3621 protocol for voice and SMS services) to achieve data transmission with the business service software, including registration, business request sending and response receiving, etc.; it connects with the database interface (if necessary) to achieve data storage and query operations to ensure persistent management of business-related data; it connects with the map control interface to achieve map data acquisition and interaction, and provide users with map-related functional services; Through the implementation of the above-mentioned functions by business service software and business terminal software, the stable operation of the entire shortwave communication system in power emergency scenarios is guaranteed, efficient data processing and management are achieved, and various needs such as power emergency command, data transmission and business operations are met.

[0021] In this embodiment, the specific steps of step S4 are as follows: Step S4-1: Hardware security control measures Localization of self-developed equipment components: For self-developed equipment in the shortwave communication subsystem (such as 20 / 125W shortwave radio), domestic electronic components are preferred in the design stage to ensure the independent controllability of the core components of the equipment; passive components such as resistors, capacitors, inductors, etc. are selected from products with mature domestic production and manufacturing technology, such as products from Fenghua Bangke, Fenghua Hi-Tech, Sunlord Xunda and other manufacturers. These manufacturers can provide passive components that meet the performance, structure and life requirements, achieving 100% localization; in terms of connectors, since the shortwave communication subsystem equipment adopts a specific standard architecture (such as the VITA46 standard architecture), high-density and high-reliability MultiGigRT2 connectors are required. Through cooperation with the domestic connector manufacturer AVIC Optronics to carry out customization work, the localization rate of such connectors is guaranteed to reach 100%; Integrated circuits are classified according to the complexity of integration and domestic products are selected; low-integration ICs (such as diodes, triodes, gate circuits, drive buffer circuits, etc.) use products from many domestic manufacturers (such as Beijing Xiangyu, Jinan Semiconductor, Zhenhua Yongguang, etc.), which have been verified by a large number of uses and meet the system requirements; medium-integration ICs (such as single-chip microcomputers, microcontrollers, small-scale FPGAs, etc.) Although there is a gap with foreign products in some aspects, the domestic technology level has developed rapidly in recent years, and many IC design companies and manufacturing companies that meet the use requirements have emerged, and their products have also been used in self-developed equipment; high-integration ICs (such as high-performance CPUs, high-performance FPGAs, network port control and other core components) use mature products that have been widely used and verified in the industry by domestic units such as Tianjin Feiteng, Loongson Zhongke, Fudan Microelectronics, and China Electronics 32nd Institute, ensuring the independent control of key chips; the domestic production and processing technology of mechanical structure components is mature, and there are many processing manufacturers to choose from. All domestic products are used, which further guarantees the degree of localization of self-developed equipment hardware; Safety management of purchased equipment: For the purchased equipment such as commercial servers and computer terminals used in the prototype equipment, we selected domestic mainstream brands such as Lenovo, and obtained them through reliable procurement channels such as Lenovo manufacturer direct supply and JD.com to ensure the stable and reliable source of the equipment; the three types of antennas and supporting equipment are all products produced by domestic manufacturers to ensure their supply stability and quality reliability; a comprehensive inspection system is implemented for purchased equipment, and the inspection content covers product model, specifications, appearance, manufacturer / supplier, quality grade, product source, main performance parameters, organization appraisal department, appraisal and testing agency, reference unit price, annual supply capacity, production and supply cycle and other information, strictly eliminate unqualified products, and ensure that the purchased equipment meets the system equipment index requirements; Establish a strict qualified supplier system. When purchasing outsourced equipment and materials, select high-quality and qualified suppliers with long-term fixed cooperative relationships, and regularly review these suppliers to evaluate their production and processing capabilities and whether their product quality continues to meet the use requirements, to ensure that suppliers can stably provide equipment and materials that meet safety and controllable standards; Step S4-2: Software safety and controllable measures: Independent development of key application software: The key application software involved in this system, including the control software (such as radio embedded control software, control modules in business service software) and application software (such as business terminal software, application function modules in business service software) that provide the necessary operating and supporting environment for the system operation, are all customized and developed to ensure ownership of all intellectual property rights and achieve independent control of the software; during the development process, all aspects, from demand analysis, design, coding to testing, are independently completed by our professional team, without relying on external uncontrollable software resources, thereby ensuring the security and reliability of the software and preventing security risks such as software vulnerabilities or backdoors from posing threats to the system; Software intellectual property protection and security management: Carry out strict intellectual property management of self-developed software, apply for software copyright and other related intellectual property protection in a timely manner, and ensure that the company's legitimate rights and interests in software are fully protected; at the same time, establish a sound software security management system, and strictly manage the software operation permissions during the software operation process to prevent illegal access and operation; regularly review and update software codes, and promptly repair possible security vulnerabilities; carry out security protection of the software operating environment, such as setting up firewalls, intrusion detection systems, etc., to prevent external malicious attacks from damaging the software system, and further improve the security and reliability of the software system; By implementing the above-mentioned safe and controllable protection measures in both hardware and software, the security and reliability of the power emergency wireless communication system based on shortwave communication are fundamentally guaranteed, so that it can operate stably in power emergency scenarios, effectively preventing risks such as communication interruption or data leakage caused by equipment or software security issues, and providing solid technical support for power emergency command and rescue work.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for power emergency wireless communication data transmission based on shortwave communication, characterized in that: The following steps are involved: Step S1, constructing a shortwave communication system, equipped with functions and equipment to achieve wireless communication in power emergency scenarios; Step S2: Design the communication process, including autonomous frequency selection and link establishment, voice service, SMS service and message service process, to ensure the effective transmission of different types of data; Step S3: perform data processing and management, and realize various functions through business service software and business terminal software to ensure stable operation of the communication system; Step S4: Implement safe and controllable protection, and take measures from both hardware and software aspects to ensure the security and reliability of the system.

2. The method for power emergency wireless communication data transmission based on shortwave communication according to claim 1 is characterized in that: The shortwave communication system construction comprises: A 20 / 125W shortwave radio with multiple communication functions is selected as the core equipment. This radio can realize multiple communication services and is equipped with batteries, inverters, antennas, tuners, matchers and service terminals to build a complete communication subsystem. According to different working modes, correctly connect each device to ensure that in different scenarios such as backpack or vehicle / fixed, the radio is firmly connected to other devices, and the antenna installation meets the requirements to achieve effective signal transmission.

3. The method for power emergency wireless communication data transmission based on shortwave communication according to claim 1 is characterized in that: The autonomous frequency selection and link establishment process includes: The calling and called radio stations perform initialization operations respectively, and the business service software controls the radio station to enter the autonomous frequency selection mode and set the corresponding parameters; After the radio completes channel prefabrication, it reports the status, the service terminal initiates the service, and the service software controls the radio to initiate a call and link establishment; The two radio stations complete the link establishment confirmation through a series of signal exchanges, and report the link establishment success to the business service software and business terminal, and then enter the business communication state; After being turned on, the radio enters a broadband receiving standby state and can initiate a call on any frequency or empirical frequency. It uses full-band signal analysis and processing technology to capture call signals, and optimizes the frequency to establish a link based on strategies such as frequency prediction, scanning detection, fast link establishment and automatic link maintenance. It can automatically monitor channel quality and switch channels during communication.

4. The method for power emergency wireless communication data transmission based on shortwave communication according to claim 1 is characterized in that: The voice service process includes: Business terminal 1 initiates a voice call request, which is forwarded to shortwave radio station 1 by business service 1, transmitted to shortwave radio station 2 through the air interface protocol, reported to business service 2 and then forwarded to business terminal 2, and business terminal 2 prompts the incoming call; Business service 2 returns a response, and after reverse transmission, business terminal 1 prompts that the call is connected. Both parties use PTT control to collect, encode, transmit, decode and play voice data. After the call ends, the call process is completed by hanging up the request.

5. The method for power emergency wireless communication data transmission based on shortwave communication according to claim 1 is characterized in that: The SMS service process includes: Business terminal 1 initiates a text message sending request, which includes the source user ID, destination user ID and text message content, which is forwarded to shortwave radio station 1 by business service 1 and sent to shortwave radio station 2 through the air interface protocol. After being reported to business service 2, business terminal 2 receives and presents the text message.

6. The method for power emergency wireless communication data transmission based on shortwave communication according to claim 1 is characterized in that: The message service process includes: Business terminal 1 selects a local file to initiate a sending request. After receiving the file, business service 1 packages the file and sends a package request to shortwave radio station 1, while returning the sending progress to business terminal 1. Shortwave radio 1 sends the sub-packetized data to shortwave radio 2 through the air interface protocol, reports it to business service 2, business service 2 caches the data, and notifies business terminal 2 after receiving the data, and business terminal 2 stores the file.

7. The method for power emergency wireless communication data transmission based on shortwave communication according to claim 1 is characterized in that: The data processing and management include: The business service software is centered on "business" and realizes the access management of multiple business terminals, management of multiple radio stations, time-division multiplexing of terminals to radio stations, log storage, business detailed information recording and fault recovery functions. The software architecture includes the system layer responsible for basic functions such as database connection, log management, storage management, etc. The protocol layer realizes the encapsulation and parsing of SIP protocol, file transfer protocol, and shortwave radio control protocol, and provides a unified API interface. The application layer completes terminal management, radio station management, voice service adaptation, SMS service adaptation, message service adaptation, business process recording and other application services; Among them, the SIP protocol in the protocol layer implements encapsulation and parsing in accordance with RFC3621, supports registration, voice, SMS and other processes and communicates with the application layer software bus; the file transfer protocol implements a custom ARQ protocol, supports radio time-division multiplexing and breakpoint continuation; the shortwave radio control protocol provides interfaces such as radio status query, frequency setting, sideband setting, data sending and SMS sending; The business terminal software adopts the MVC design mode based on the JavaFx application framework, provides a human-computer interaction interface, and realizes six major functions: login management, radio station management, business management, system management, log management, and map management; Among them, the login management module includes local login verification of user legitimacy and system authentication functions; the radio management module can control the radio fixed frequency, autonomous frequency selection working mode and query status; the service management module supports voice, SMS, file services and historical record viewing; the system management module provides system parameter configuration, user management, contact management and other functions; the log management module records system operations, operations and error logs; the map management module realizes map data import and user location mapping.

8. The method for power emergency wireless communication data transmission based on shortwave communication according to claim 1 is characterized in that: The safety and controllable guarantees include: Hardware safety and controllability: Self-developed equipment uses domestic electronic components, including resistors, capacitors, inductors, crystal oscillators, connectors, diodes, fuses, switches, relays, cables, and integrated circuits. Some key components are customized in cooperation with domestic manufacturers to ensure the localization rate. For purchased equipment, we choose domestic mainstream brands. By strictly checking product models, specifications, manufacturers and other information and the qualified supplier system, we can ensure the quality of equipment and the stability of supply. Among them, the electronic components of self-developed equipment, such as resistors, capacitors, inductors and other passive devices, connectors, integrated circuits and mechanical structures are all domestically produced. Inspection of purchased equipment includes product model, specification, appearance, manufacturer / supplier, quality grade, product source, main performance parameters, organization appraisal department, appraisal and testing agency, reference unit price, annual supply capacity, production and supply cycle, etc. The qualified supplier system regularly reviews the supplier's production and processing capabilities and product quality; Software is safe and controllable: Key application software, including control software and application software, are independently developed and have all intellectual property rights, ensuring that the software is independent and controllable; Among them, the control software includes radio embedded control software and business service software, and the application software includes business terminal software and business service software.