Hydropower station wireless broadcast flood discharge early warning method and system based on LoRa wireless communication technology

Abstract

The invention relates to the technical field of wireless broadcasting. The invention provides a hydropower station wireless broadcast flood discharge early warning method and system based on a LoRa wireless communication technology. The method comprises the following steps: a central station sends a flood discharge early warning instruction to a B-type early warning station through a LoRa communication mode; the B-type early warning station forwards the flood discharge early warning instruction to the C-type early warning station in the corresponding jurisdiction through a LoRa communication mode; after receiving the flood discharge early warning instruction, the C-type early warning station sends an instruction receiving feedback signal to the corresponding B-type early warning station in a LoRa communication mode, and sends a playing completion feedback signal to the corresponding B-type early warning station in the LoRa communication mode after broadcast playing is completed; and the B-type early warning station uploads instruction receiving feedback signals and playing completion feedback signals of the B-type early warning station and the C-type early warning station to the central station in a LoRa communication mode. The problems that due to the fact that an existing hydropower station flood discharge early warning system depends on GSM or microwave or satellite communication, communication reliability is low, environmental restriction is large, the transmission distance is limited, and a single-point fault affects the overall situation are solved.

Description

Technical Field

[0001] This invention relates to the field of wireless broadcasting technology, and more specifically, to a method, system, device, and storage medium for wireless broadcasting flood discharge early warning in hydropower stations based on LoRa wireless communication technology. Background Technology

[0002] Hydropower station flood discharge early warning wireless broadcasting system is commonly used to send flood discharge early warning broadcasts within the flood discharge channel when a hydropower station discharges floodwater. It consists of a central station and early warning stations, with early warning stations further divided into Type B and Type C early warning stations. The central station is located in the hydropower station's duty room, while the early warning stations are distributed throughout the flood discharge channel.

[0003] Currently, information transmission between the central station and the early warning station mainly relies on GSM SMS communication, microwave communication, or satellite communication (see reference). Figure 3 GSM and satellite communications are susceptible to environmental factors such as base station coverage and weather, resulting in low communication reliability. Microwave communication is limited by transmission distance and cannot meet the needs of long-distance communication. Furthermore, the communication between Type B and Type C early warning stations is mainly unidirectional microwave communication. If a Type B early warning station fails, all its subordinate Type C early warning stations will be unable to receive instructions, seriously affecting the timeliness and reliability of flood discharge early warnings. Summary of the Invention

[0004] The purpose of this invention is to provide a method and system for wireless broadcasting flood discharge early warning in hydropower stations based on LoRa wireless communication technology, aiming to solve the problems of low communication reliability, high susceptibility to environmental constraints, limited transmission distance, and single-point failure affecting the whole system caused by the reliance on GSM, microwave or satellite communication in existing hydropower station flood discharge early warning systems.

[0005] The present invention is achieved through the following technical solution: A method for providing early warning of flood discharge via wireless broadcasting in hydropower stations based on LoRa wireless communication technology includes the following steps: The central station sends flood discharge warning commands to the Type B early warning station via LoRa communication. After receiving the flood discharge warning instruction, the Type B warning station forwards the flood discharge warning instruction to the Type C warning station in the corresponding jurisdiction via LoRa communication. After receiving the flood discharge warning instruction, the Type C warning station sends the instruction to the corresponding Type B warning station via LoRa communication to receive the feedback signal. After the broadcast is completed, it sends the playback completion feedback signal to the corresponding Type B warning station via LoRa communication. Type B early warning stations will transmit the instruction reception feedback signals and playback completion feedback signals from both the station and Type C early warning stations to the central station via LoRa communication.

[0006] Optionally, if the central station detects an anomaly in the LoRa communication link between the central station and the Type B station, it switches to mobile network communication mode and sends a flood discharge warning command to the Type B warning station via mobile network communication mode. The Type B warning station forwards the flood discharge warning command to the Type C warning station in the corresponding jurisdiction via LoRa communication mode, and uploads the feedback signal of the Type C warning station to the central station via mobile network communication mode.

[0007] Optionally, the central station periodically detects the status of the LoRa communication links and mobile network communication links between the central station and the type B early warning station, the type B early warning station and the type C early warning station, and adjacent type B early warning stations, and issues an alarm when a communication interruption is detected.

[0008] Optionally, after the central station or Type B early warning station confirms that the previously abnormal LoRa communication link has returned to normal through communication link status detection, it sends a link switching command to the corresponding early warning station. After receiving the link switching command, the corresponding early warning station stops using the current mobile network communication mode and switches back to the LoRa communication mode. After the switch is completed, the corresponding early warning station sends a link switching completion signal back to the central station or Type B early warning station that sent the link switching command.

[0009] Optionally, the C-type early warning station sets a non-response time threshold for communicating with the B-type early warning station. If no instruction is received from the B-type early warning station within the time threshold, the station switches to the adjacent B-type early warning station and sends a switching alarm signal to the central station through the adjacent B-type early warning station.

[0010] Optionally, after receiving the instruction reception feedback signal and playback completion feedback signal from the type C early warning station, the type B early warning station verifies the integrity and validity of the instruction reception feedback signal and playback completion feedback signal from the type C early warning station. If the verification passes, the station integrates its own instruction reception feedback signal and playback completion feedback signal with the verified instruction reception feedback signal and playback completion feedback signal from the type C early warning station to form a feedback data packet in a unified format. The feedback data packet is then uploaded to the central station via LoRa communication or mobile network communication.

[0011] Optionally, after receiving the feedback data packet uploaded by the Type B early warning station, the central station parses the feedback data packet to determine the feedback status of each Type C early warning station. If the parsing reveals that there is a Type C early warning station that has not responded to the feedback signal or has finished playing the feedback signal, a retransmission command is sent to the corresponding Type B early warning station via LoRa communication. After receiving the retransmission command, the Type B early warning station retransmits the flood discharge early warning command to the Type C early warning station that has not responded via LoRa communication.

[0012] Based on the same inventive concept, this invention also provides a hydropower station wireless broadcast flood discharge early warning system based on LoRa wireless communication technology, used to implement the aforementioned hydropower station wireless broadcast flood discharge early warning method based on LoRa wireless communication technology, including: The central station is equipped with a LoRa communication module and a mobile network communication module, which are used to send flood discharge warning commands to the Type B warning stations and receive feedback signals from the Type B warning stations. At least one Type B early warning station is equipped with a LoRa communication module and a mobile network communication module, which are used to receive instructions from the central station and forward them to the Type C early warning station, as well as to receive feedback signals from the Type C early warning station and upload them to the central station. Multiple Type C early warning stations are equipped with LoRa communication modules to receive flood discharge early warning instructions forwarded by Type B early warning stations, and to send instructions to Type B early warning stations to receive feedback signals and playback completion feedback signals. The central station is also equipped with a communication link detection module, which is used to periodically detect the communication link status between the central station and the Type B early warning station, between the Type B early warning station and the Type C early warning station, and between adjacent Type B early warning stations, and to issue an alarm prompt when a communication interruption is detected. The C-type early warning station is also equipped with a time threshold detection module, which is used to automatically switch to the adjacent B-type early warning station when no instruction is received from the B-type early warning station within a set time, and send a switching alarm signal to the central station through the adjacent B-type early warning station.

[0013] Based on the same inventive concept, the present invention also provides an electronic device, including a memory and a processor, wherein the memory is used to store a computer program, and the processor runs the computer program to enable the electronic device to execute the above-described method for wireless broadcasting flood discharge early warning of hydropower stations based on LoRa wireless communication technology.

[0014] Based on the same inventive concept, the present invention also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the above-described method for wireless broadcasting flood discharge early warning in hydropower stations based on LoRa wireless communication technology.

[0015] The technical solution of the present invention has at least the following advantages and beneficial effects: By adopting LoRa wireless communication technology, the limitations of traditional GSM SMS communication, microwave communication or satellite communication are overcome. It can effectively avoid communication interruptions caused by insufficient communication base station coverage, severe weather or transmission distance limitations, and ensure stable transmission of flood discharge warning instructions in complex environments.

[0016] Type B and Type C early warning stations communicate bidirectionally via LoRa technology. Type C stations can send commands to Type B stations, receive feedback, and play back completed feedback, forming a closed-loop control system. Even if an individual Type B station fails, the central station can still communicate with other Type B stations or directly with the Type C station, avoiding the overall system paralysis caused by a single point of failure in traditional one-way communication, and significantly improving the timeliness and reliability of early warnings.

[0017] The system completes feedback through receiving and playing instructions, enabling the central station to monitor the status of instruction issuance and broadcast execution in real time. This achieves full traceability management of the early warning process, helps to quickly locate fault nodes, improves emergency response efficiency, and provides data support for operation and maintenance management.

[0018] LoRa technology features long-distance transmission capabilities, eliminating the need for third-party communication base stations or high-cost satellite channels, thus reducing communication costs and infrastructure dependence. At the same time, its low power consumption extends the battery life of early warning station equipment, making it suitable for remote flood discharge river environments and reducing long-term operation and maintenance costs.

[0019] LoRa networks support multiple networking methods such as star and mesh, and can flexibly deploy early warning stations according to river topology, and facilitate the addition or adjustment of stations in the future. Attached Figure Description

[0020] Figure 1 This is a flowchart illustrating the method for wireless broadcasting flood discharge early warning in hydropower stations based on LoRa wireless communication technology, according to an embodiment of the present invention. Figure 2 This is a schematic diagram of the structure of a hydropower station wireless broadcast flood discharge early warning system based on LoRa wireless communication technology, according to an embodiment of the present invention. Figure 3 A schematic diagram of the network structure of an existing hydropower station flood discharge early warning system; Figure 4 This is a schematic diagram of the network structure of a hydropower station wireless broadcast flood discharge early warning system based on LoRa wireless communication technology, according to an embodiment of the present invention. Detailed Implementation

[0021] The following is a detailed description of the embodiments, in conjunction with the accompanying drawings.

[0022] Reference Figure 1 A method for providing early warning of flood discharge via wireless broadcasting in hydropower stations based on LoRa wireless communication technology includes the following steps: Step 1: The central station sends a flood discharge warning command to the Type B early warning station via LoRa communication.

[0023] In some embodiments, the central station first activates its own configured LoRa communication module to establish the hardware foundation for the wireless transmission of flood discharge warning commands, and matches the LoRa communication module of the Type B warning station to ensure signal compatibility. The central station uses its configured communication link detection module to confirm the status of the LoRa communication link with the target Type B warning station (because the system needs to periodically detect the link, it is necessary to ensure that the LoRa link is uninterrupted and the signal is stable before sending the command, and to rule out link abnormalities). If the LoRa link detection is normal, the central station generates a flood discharge warning command that contains key flood discharge information (such as flood discharge time, flood discharge range, warning level, etc.) and conforms to the system's unified format according to the flood discharge warning requirements. The central station sends the generated flood discharge warning command to the target Type B warning station through the activated LoRa communication module using LoRa low-power wide-area wireless communication, completing the initial transmission link of the command from the central station to the Type B warning station.

[0024] Step 2: After receiving the flood discharge warning instruction, the Type B warning station forwards the flood discharge warning instruction to the Type C warning station in the corresponding jurisdiction via LoRa communication.

[0025] In some embodiments, after receiving a flood discharge warning instruction from the central station, a Type B warning station first verifies the completeness and validity of the instruction. After successful verification, it proceeds to the forwarding process. The Type B warning station forwards the flood discharge warning instruction to the Type C warning stations within its corresponding jurisdiction according to preset jurisdictional division rules. Figure 4 Each Type B early warning station (such as Figure 4 The terms B1, B2, ..., Bn in the text can correspond to multiple Type C early warning stations (e.g., ...). Figure 4 (C1, C2, ..., Cn in the diagram); Type B early warning stations activate their own LoRa communication modules to forward flood discharge early warning instructions to all Type C early warning stations within their jurisdiction in the form of LoRa wireless signals, completing the hierarchical transmission of instructions from Type B to Type C, and providing instruction basis for Type C early warning stations to subsequently execute flood discharge early warning broadcasts and send feedback signals.

[0026] Step 3: After receiving the flood discharge warning instruction, the Type C warning station sends a command to the corresponding Type B warning station via LoRa communication to receive the feedback signal. After the broadcast is completed, it sends a playback completion feedback signal to the corresponding Type B warning station via LoRa communication.

[0027] In some embodiments, after receiving a flood discharge warning instruction forwarded by a Type B warning station in its jurisdiction via its configured LoRa communication module, the Type C warning station first verifies the completeness (e.g., whether it contains key information such as flood discharge time, range, and warning level) and validity (whether it conforms to the system's unified format) of the instruction to eliminate problems such as instruction corruption or format errors. If the verification passes, the Type C warning station immediately sends an instruction reception feedback signal to the corresponding Type B warning station that forwarded the instruction via LoRa communication. The feedback signal must contain the unique identifier of the Type C warning station (e.g., C1, C2, etc.) so that the Type B warning station can identify the source of the feedback. Based on the verified flood discharge warning instruction, the Type C warning station broadcasts a flood discharge warning in the corresponding area of ​​the flood discharge channel to ensure that people in the surrounding affected areas receive the warning information. After the Type C warning station completes the preset warning broadcast task, it again sends a broadcast completion feedback signal to the corresponding Type B warning station via LoRa communication. The feedback signal also carries the Type C warning station's identifier to inform the Type B warning station that the station has completed the warning broadcast execution.

[0028] Step 4: The Type B early warning station will upload the instruction reception feedback signal and playback completion feedback signal from itself and the Type C early warning station to the central station via LoRa communication.

[0029] In some embodiments, after receiving the instruction reception feedback signal and playback completion feedback signal from the type C early warning station, the type B early warning station verifies the integrity and validity of the instruction reception feedback signal and playback completion feedback signal from the type C early warning station. If the verification passes, the type B early warning station integrates its own instruction reception feedback signal and playback completion feedback signal with the verified instruction reception feedback signal and playback completion feedback signal from the type C early warning station to form a feedback data packet in a unified format. The feedback data packet is then uploaded to the central station via LoRa communication or mobile network communication.

[0030] In some embodiments, if the central station detects an anomaly in the LoRa communication link between the central station and the Type B station, it switches to mobile network communication and sends a flood discharge warning command to the Type B warning station via mobile network communication. (Refer to...) Figure 4 Under normal communication conditions, LoRa communication is the preferred method, such as between the central station and the B1 type early warning station. When the LoRa communication link between the central station and the B type station is abnormal, such as between the central station and the B2 type early warning station, mobile network communication is used. The B type early warning station forwards flood discharge early warning instructions to the corresponding C type early warning stations within its jurisdiction via LoRa communication, and uploads feedback signals from the C type early warning stations to the central station via mobile network communication.

[0031] In some embodiments, the central station periodically checks the LoRa communication links (such as those between the central station and Type B early warning stations, between Type B early warning stations and Type C early warning stations, and between adjacent Type B early warning stations) Figure 4 The status of the LoRa communication link and mobile network communication link between the B1 and B2 early warning stations is detected, and an alarm is issued when a communication interruption is detected.

[0032] In some embodiments, after the central station or Type B early warning station confirms that the previously abnormal LoRa communication link has returned to normal through communication link status detection, it sends a link switching command to the corresponding early warning station. After receiving the link switching command, the corresponding early warning station stops using the current mobile network communication mode and switches back to the LoRa communication mode. After the switching is completed, the corresponding early warning station sends a link switching completion signal back to the central station or Type B early warning station that sent the link switching command.

[0033] In some embodiments, a Type C warning station sets a non-response time threshold for communication with a Type B warning station. If no instruction is received from a Type B warning station within the time threshold, the system switches to the adjacent Type B warning station. Figure 4 The C1 and B1 early warning stations within the jurisdiction of the Zhongyuan B2 early warning station use LoRa communication and send switching alarm signals to the central station through the adjacent B-type early warning station.

[0034] In some embodiments, after receiving the feedback data packet uploaded by the Type B early warning station, the central station parses the feedback data packet to determine the feedback status of each Type C early warning station. If the parsing reveals that there is a Type C early warning station that has not responded to receive the feedback signal or has finished playing the feedback signal, a retransmission command is sent to the corresponding Type B early warning station via LoRa communication. After receiving the retransmission command, the Type B early warning station retransmits the flood discharge early warning command to the Type C early warning station that has not responded via LoRa communication.

[0035] Based on the same inventive concept, and corresponding to any of the above embodiments, refer to... Figure 2 This invention provides a hydropower station wireless broadcast flood discharge early warning system based on LoRa wireless communication technology, used to implement the aforementioned hydropower station wireless broadcast flood discharge early warning method based on LoRa wireless communication technology, comprising: The central station is equipped with a LoRa communication module and a mobile network communication module, which are used to send flood discharge warning commands to the Type B warning stations and receive feedback signals from the Type B warning stations. At least one Type B early warning station is equipped with a LoRa communication module and a mobile network communication module, which are used to receive instructions from the central station and forward them to the Type C early warning station, as well as to receive feedback signals from the Type C early warning station and upload them to the central station. Multiple Type C early warning stations are equipped with LoRa communication modules to receive flood discharge early warning instructions forwarded by Type B early warning stations, and to send instructions to Type B early warning stations to receive feedback signals and playback completion feedback signals. The central station is also equipped with a communication link detection module, which is used to periodically detect the communication link status between the central station and the Type B early warning station, between the Type B early warning station and the Type C early warning station, and between adjacent Type B early warning stations, and to issue an alarm prompt when a communication interruption is detected. The C-type early warning station is also equipped with a time threshold detection module, which is used to automatically switch to the adjacent B-type early warning station when no instruction is received from the B-type early warning station within a set time, and send a switching alarm signal to the central station through the adjacent B-type early warning station.

[0036] Based on the same inventive concept, corresponding to any of the above embodiments, the present invention provides an electronic device, including a memory and a processor. The memory is used to store a computer program, and the processor runs the computer program to enable the electronic device to execute the hydropower station wireless broadcast flood discharge early warning method based on LoRa wireless communication technology of the embodiment.

[0037] Alternatively, the aforementioned electronic device may be a server.

[0038] In addition, this embodiment also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the hydropower station wireless broadcast flood discharge early warning method based on LoRa wireless communication technology of the embodiment.

[0039] It is understood that the processor in the embodiments of the present invention may be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0040] The method steps in the embodiments of the present invention can be implemented in hardware or by a processor executing software instructions. The software instructions can consist of corresponding software modules, which can be stored in random access memory (RAM), flash memory, read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), registers, hard disks, portable hard disks, CD-ROMs, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor, enabling the processor to read information from and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and the storage medium can reside in an ASIC.

[0041] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of the present invention is generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a storage medium or transmitted through a storage medium. The computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid-state drive (SSD)).

Claims

1. A method for wireless broadcasting flood discharge early warning in hydropower stations based on LoRa wireless communication technology, characterized in that, Includes the following steps: The central station sends flood discharge warning commands to the Type B early warning station via LoRa communication. After receiving the flood discharge warning instruction, the Type B warning station forwards the flood discharge warning instruction to the Type C warning station in the corresponding jurisdiction via LoRa communication. After receiving the flood discharge warning instruction, the Type C warning station sends the instruction to the corresponding Type B warning station via LoRa communication to receive the feedback signal. After the broadcast is completed, it sends the playback completion feedback signal to the corresponding Type B warning station via LoRa communication. Type B early warning stations will transmit the instruction reception feedback signals and playback completion feedback signals from both the station and Type C early warning stations to the central station via LoRa communication.

2. The method for wireless broadcasting flood discharge early warning of hydropower stations based on LoRa wireless communication technology as described in claim 1, characterized in that, If the central station detects an anomaly in the LoRa communication link between the central station and the Type B station, it switches to mobile network communication mode and sends a flood discharge warning command to the Type B early warning station through mobile network communication mode; Type B early warning stations forward flood discharge early warning instructions to Type C early warning stations within their respective jurisdictions via LoRa communication, and upload feedback signals from Type C early warning stations to the central station via mobile network communication.

3. The method for wireless broadcasting flood discharge early warning of hydropower stations based on LoRa wireless communication technology as described in claim 1, characterized in that, The central station periodically detects the status of the LoRa communication links and mobile network communication links between the central station and the Type B early warning station, the Type B early warning station and the Type C early warning station, and adjacent Type B early warning stations, and issues an alarm when a communication interruption is detected.

4. The method for wireless broadcasting flood discharge early warning of hydropower stations based on LoRa wireless communication technology as described in claim 1, characterized in that, Once the central station or Type B early warning station confirms that the previously abnormal LoRa communication link has returned to normal through communication link status detection, it sends a link switching command to the corresponding early warning station. Upon receiving the link switching command, the corresponding early warning station stops using the current mobile network communication method and switches back to the LoRa communication method. After the switch is completed, the corresponding early warning station sends a link switch completion signal back to the central station that sent the link switch command or the Type B early warning station.

5. The method for wireless broadcasting flood discharge early warning of hydropower stations based on LoRa wireless communication technology as described in claim 1, characterized in that, The C-type early warning station is set with a non-response time threshold for communicating with the B-type early warning station. If no instruction is received from the B-type early warning station within the time threshold, the station switches to the adjacent B-type early warning station and sends a switching alarm signal to the central station through the adjacent B-type early warning station.

6. The method for wireless broadcasting flood discharge early warning of hydropower stations based on LoRa wireless communication technology as described in claim 1, characterized in that, After receiving the instruction reception feedback signal and playback completion feedback signal from the type C early warning station, the type B early warning station verifies the integrity and validity of the instruction reception feedback signal and playback completion feedback signal from the type C early warning station. If the verification passes, the instruction reception feedback signal and playback completion feedback signal of this station will be integrated with the instruction reception feedback signal and playback completion feedback signal of the verified C-type early warning station to form a feedback data packet in a unified format. Feedback data packets are uploaded to the central station via LoRa communication or mobile network communication.

7. The method for wireless broadcasting flood discharge early warning of hydropower stations based on LoRa wireless communication technology as described in claim 6, characterized in that, After receiving the feedback data packet uploaded by the Type B early warning station, the central station parses the feedback data packet to determine the feedback status of each Type C early warning station. If the parsing reveals that there is a Type C early warning station that has not responded to receive the feedback signal or has finished playing the feedback signal, the central station sends a retransmission command to the corresponding Type B early warning station via LoRa communication. After receiving the retransmission command, the Type B early warning station retransmits the flood discharge early warning command to the Type C early warning station that has not responded via LoRa communication.

8. A hydropower station wireless broadcast flood discharge early warning system based on LoRa wireless communication technology, used to implement the hydropower station wireless broadcast flood discharge early warning method based on LoRa wireless communication technology as described in any one of claims 1-7, characterized in that, include: The central station is equipped with a LoRa communication module and a mobile network communication module, which are used to send flood discharge warning commands to the Type B warning stations and receive feedback signals from the Type B warning stations. Each Type B early warning station is equipped with a LoRa communication module and a mobile network communication module, which are used to receive instructions from the central station and forward them to the Type C early warning station, as well as to receive feedback signals from the Type C early warning station and upload them to the central station. Each Type C early warning station is equipped with a LoRa communication module and a mobile network communication module, which are used to receive flood discharge early warning instructions forwarded by Type B early warning stations, and send instructions to Type B early warning stations to receive feedback signals and play-complete feedback signals. The central station is also equipped with a communication link detection module, which is used to periodically detect the communication link status between the central station and the Type B early warning station, between the Type B early warning station and the Type C early warning station, and between adjacent Type B early warning stations, and to issue an alarm prompt when a communication interruption is detected. The C-type early warning station is also equipped with a time threshold detection module, which is used to automatically switch to the adjacent B-type early warning station when no instruction is received from the B-type early warning station within a set time, and send a switching alarm signal to the central station through the adjacent B-type early warning station.

9. An electronic device, characterized in that, The device includes a memory and a processor, wherein the memory stores a computer program and the processor runs the computer program to enable the electronic device to perform the hydropower station wireless broadcast flood discharge early warning method based on LoRa wireless communication technology as described in any one of claims 1-7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the hydropower station wireless broadcast flood discharge early warning method based on LoRa wireless communication technology as described in any one of claims 1-7.

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