Marine emergency rescue method, device and equipment based on Beidou short message

Abstract

The invention discloses a maritime emergency rescue method, device and equipment based on a Beidou short message, relates to the technical field of maritime emergency communication, and is used for solving the technical problem that an existing maritime emergency rescue method is low in efficiency and success rate. The method is applied to a maritime emergency rescue system comprising a Beidou intelligent terminal, a shore end control center and a fusion network, and the fusion network is composed of a Beidou short message communication network and a 5G maritime communication network. Comprising the following steps: when an operator on the sea encounters an emergency situation, sending early warning information to a shore end control center through fusion networking by adopting a Beidou intelligent terminal; according to the early warning information and the current rescue resources, the shore end control center is adopted to formulate a rescue strategy; and according to the rescue strategy, the shore end control center is adopted to send a rescue instruction and positioning information to rescue workers through the fusion network, so that the efficiency and the success rate of maritime emergency rescue are improved.

Description

Technical Field

[0001] This application relates to the technical field of maritime emergency communication, and provides a maritime emergency rescue method, device and equipment based on Beidou short message service. Background Art

[0002] With the rapid development of China's offshore wind power industry, the safety issues of offshore operations have become increasingly prominent. Especially in the deep waters of the open sea, the network signal is unstable or even has no coverage, making maritime emergency rescue more and more important. However, the existing maritime emergency rescue communication has the following problems:

[0003] (1) The communication range of the existing Very High Frequency (VHF) radio communication is limited, and it is difficult to meet the emergency rescue communication needs in the open sea area; (2) In the existing traditional satellite navigation systems (such as GPS, GLONASS) for maritime emergency rescue, the distress information and rescue instructions cannot be transmitted in real time, reducing the efficiency and success rate of rescue, resulting in insufficient communication real-time performance and reliability; (3) The existing equipment such as maritime satellite phones is expensive and complex to operate, which is not conducive to popularization and use among offshore workers; (4) Most of the existing maritime emergency rescue communication technologies focus on the realization of single functions (such as positioning, communication, etc.), and lack a comprehensive solution to integrate these functions, resulting in difficulties in information exchange and collaborative work between different devices, and reducing the overall efficiency of rescue operations; (5) Under harsh sea conditions (such as strong winds and waves, sea fog, etc.), the existing communication technologies are easily interfered or attenuated, resulting in a decline in communication quality or even interruption, and unable to transmit distress information and rescue instructions in a timely and accurate manner; (6) There are limitations in the use of position indicators by offshore workers.

[0004] Therefore, how to improve the efficiency and success rate of maritime emergency rescue has become an urgent problem to be solved at present. Summary of the Invention

[0005] This application provides a maritime emergency rescue method, device and equipment based on Beidou short message service, which is used to solve the technical problem that the efficiency and success rate of the existing maritime emergency rescue methods are both relatively low.

[0006] On the one hand, a maritime emergency rescue method based on Beidou short message service is provided, which is applied to a maritime emergency rescue system including a Beidou intelligent terminal, a shore control center and a converged network. The converged network is composed of a Beidou short message communication network and a 5G maritime communication network; the method includes:

[0007] When an offshore worker encounters an emergency, the Beidou intelligent terminal is used to send warning information to the shore control center through the converged network; wherein, the warning information includes distress information and positioning information;

[0008] Formulate a rescue strategy using the shore control center according to the warning information and current rescue resources;

[0009] Send rescue instructions and positioning information to rescue personnel using the shore control center through the integrated network according to the rescue strategy.

[0010] Optionally, before sending the warning information to the shore control center through the integrated network using the Beidou intelligent terminal, the method further includes:

[0011] Receive the alarm instruction manually triggered by the offshore operation personnel using the Beidou intelligent terminal;

[0012] Collect images of the distress scene using a camera according to the alarm instruction to obtain the collected images;

[0013] Process the collected images using the YOLOv5s network model to obtain disaster information;

[0014] Receive the voice information input by the offshore operation personnel using the Beidou intelligent terminal;

[0015] Convert the voice information using the Hidden Markov Model (HMM) to obtain text information;

[0016] Generate the warning information from the disaster information, the text information, the positioning information, and the distress information.

[0017] Optionally, the step of generating the warning information from the disaster information, the text information, the positioning information, and the distress information includes:

[0018] Extract features from the disaster information, the text information, the positioning information, and the distress information using the multimodal information compression method to obtain multiple feature vectors;

[0019] Use the attention mechanism to perform weighted fusion on the multiple feature vectors to obtain a fused multimodal vector;

[0020] Compress the fused multimodal vector using the Discrete Cosine Transform (DCT) compression algorithm to obtain a compressed multimodal vector;

[0021] Generate the warning information according to the compressed multimodal vector.

[0022] Optionally, the step of sending the warning information to the shore control center through the integrated network using the Beidou intelligent terminal includes:

[0023] If the distance between the offshore operation personnel and the coast is less than the preset distance, the Beidou intelligent terminal is used to send the warning information to the shore control center through the 5G maritime communication network;

[0024] If the distance between the offshore operation personnel and the coast is not less than the preset distance, the Beidou intelligent terminal is used to send the warning information to the shore control center through the Beidou short message communication network.

[0025] Optionally, the step of formulating a rescue strategy by the shore control center according to the warning information and the current rescue resources includes:

[0026] The shore control center is used to analyze and process the warning information to obtain the positioning information;

[0027] According to the positioning information, determine the current rescue resources within the preset distance of the offshore operation personnel;

[0028] According to the warning information and the current rescue resources, the shore control center formulates a rescue strategy.

[0029] Optionally, the step of formulating a rescue strategy by the shore control center according to the warning information and the current rescue resources includes:

[0030] According to the distance between the accident site and the land, the warning information and the current rescue resources, formulate a differentiated rescue strategy; or,

[0031] According to the severity of the accident, the warning information and the current rescue resources, formulate a hierarchical rescue strategy.

[0032] Optionally, the step of formulating a differentiated rescue strategy according to the distance between the accident site and the land, the warning information and the current rescue resources includes:

[0033] If it is determined that the distance between the accident site and the land is within the preset short-distance range, then according to the distance between the accident site and the land, the warning information and the current rescue resources, formulate a first rescue strategy; wherein, the first rescue strategy is used to first dispatch an emergency rescue ship and then mobilize a helicopter.

[0034] If it is determined that the distance between the accident site and the land is within the preset medium-distance range, then according to the distance between the accident site and the land, the warning information and the current rescue resources, formulate a second rescue strategy; wherein, the second rescue strategy is used to first dispatch a drone swarm and an unmanned rescue ship, and then mobilize a helicopter and an emergency rescue ship;

[0035] If it is determined that the distance between the accident site and the land is within a preset long-distance range, a third rescue strategy is formulated according to the distance between the accident site and the land, the warning information, and the current rescue resources; wherein, the third rescue strategy is used to first mobilize a helicopter and then dispatch an emergency rescue ship.

[0036] Optionally, the step of formulating a hierarchical rescue strategy according to the accident severity, the warning information, and the current rescue resources includes:

[0037] If it is determined that the accident severity is a minor accident level, a fourth rescue strategy is formulated according to the accident severity, the warning information, and the current rescue resources; wherein, the fourth rescue strategy is used for on-site autonomous rescue and shore-end remote guidance;

[0038] If it is determined that the accident severity is a moderate accident level, a fifth rescue strategy is formulated according to the accident severity, the warning information, and the current rescue resources; wherein, the fifth rescue strategy is used for shore-end remote guidance and helicopter sea transportation nearby;

[0039] If it is determined that the accident severity is a serious accident level, a sixth rescue strategy is formulated according to the accident severity, the warning information, and the current rescue resources; wherein, the sixth rescue strategy is used to activate a preset highest-level maritime emergency rescue plan.

[0040] On the one hand, a maritime emergency rescue device based on Beidou short message is provided, which is applied to a maritime emergency rescue system including a Beidou intelligent terminal, a shore-end control center, and a fusion network; the fusion network is composed of a Beidou short message communication network and a 5G maritime communication network; the device includes:

[0041] A communication module, which is used to, when a seagoing operator encounters an emergency, use the Beidou intelligent terminal to send warning information to the shore-end control center through the fusion network; wherein, the warning information includes a distress message and a positioning message;

[0042] A data processing module, which is used to formulate a rescue strategy by using the shore-end control center according to the warning information and the current rescue resources;

[0043] The communication module is further used to send a rescue instruction and a positioning message to the rescue personnel by using the shore-end control center through the fusion network according to the rescue strategy.

[0044] On the one hand, an electronic device is provided, including a memory, a processor, and a computer program stored on the memory and executable on the processor, and when the processor executes the computer program, the above-mentioned any method is implemented.

[0045] On the one hand, a storage medium is provided, on which computer program instructions are stored, and when the computer program instructions are executed by a processor, any of the above methods is implemented.

[0046] Compared with the prior art, the beneficial effects of this application are as follows:

[0047] In this application, the technical solution is applied to a maritime emergency rescue system including a Beidou intelligent terminal, a shore control center, and a converged network. The converged network consists of a Beidou short message communication network and a 5G maritime communication network. Furthermore, when offshore workers encounter an emergency, first, the Beidou intelligent terminal can be used to send warning information to the shore control center through the converged network. Among them, the warning information includes a distress message and a positioning message. Then, according to the warning information and current rescue resources, the shore control center can formulate a rescue strategy. Finally, according to the rescue strategy, the shore control center can send rescue instructions and positioning information to the rescue personnel through the converged network.

[0048] Based on this, in this application, since maritime emergency rescue is carried out through a maritime emergency rescue system including a Beidou intelligent terminal, a shore control center, and a converged network, compared with the prior art, this application can use the Beidou short message communication technology to achieve efficient and reliable communication of offshore workers in an emergency, ensuring that the warning information can be sent to the shore control center in a timely and accurate manner, so as to quickly initiate a rescue operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the following will briefly introduce the drawings required for use in the description of the embodiments or related technologies. Obviously, the drawings in the following description are only the embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0050] Figure 1 An electronic device provided for an embodiment of this application;

[0051] Figure 2 A schematic diagram of a maritime emergency rescue method based on Beidou short messages provided for an embodiment of this application;

[0052] Figure 3 A schematic diagram of a maritime emergency rescue device based on Beidou short messages provided for an embodiment of this application.

[0053] Marks in the figure: 10 - Maritime emergency rescue equipment based on Beidou short message, 101 - Processor, 102 - Memory, 103 - I / O interface, 104 - Database, 30 - Maritime emergency rescue device based on Beidou short message, 301 - Communication module, 302 - Data processing module, 303 - Communication module. Detailed implementation manners

[0054] To make the objectives, technical solutions and advantages of the present application clearer and more understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without making any creative efforts shall fall within the protection scope of the present application. Without conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other. And although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order from here.

[0055] With the rapid development of China's offshore wind power industry, the safety issue of offshore operations has become increasingly prominent. Especially in the deep-water areas of the open sea, the network signal is unstable or even has no coverage, making maritime emergency rescue more and more important. However, there are the following problems in the existing maritime emergency rescue communication:

[0056] (1) The communication range of the existing Very High Frequency (VHF) radio communication is limited and it is difficult to meet the emergency rescue communication requirements in the open sea area; (2) In the existing traditional satellite navigation systems (such as GPS, GLONASS) for maritime emergency rescue, the distress information and rescue instructions cannot be transmitted in real time, reducing the efficiency and success rate of rescue and resulting in insufficient communication real-time performance and reliability; (3) The existing equipment such as maritime satellite phones is expensive and complex to operate, which is not conducive to popularization and use among offshore operation personnel; (4) Most of the existing maritime emergency rescue communication technologies focus on the realization of single functions (such as positioning, communication, etc.), and lack a comprehensive solution to integrate these functions, resulting in difficulties in information exchange and collaborative work between different devices and reducing the overall efficiency of rescue operations; (5) Under harsh sea conditions (such as strong winds and waves, sea fog, etc.), the existing communication technologies are easily interfered or attenuated, resulting in a decline in communication quality or even interruption, and being unable to transmit distress information and rescue instructions in a timely and accurate manner; (6) There are limitations in the use of position indicators by offshore operation personnel.

[0057] Based on this, an embodiment of the present application provides a maritime emergency rescue method based on Beidou short messages. This method is applied to a maritime emergency rescue system that includes a Beidou intelligent terminal, a shore control center, and a fusion network. In this method, when offshore workers encounter an emergency, first, the Beidou intelligent terminal can be used to send warning information to the shore control center through the fusion network; among them, the warning information includes a distress message and a positioning information. Then, based on the warning information and current rescue resources, the shore control center can formulate a rescue strategy. Finally, based on the rescue strategy, the shore control center can send rescue instructions and positioning information to the rescue personnel through the fusion network. Based on this, in the present application, since maritime emergency rescue is carried out through a maritime emergency rescue system that includes a Beidou intelligent terminal, a shore control center, and a fusion network, therefore, compared with the prior art, the present application can use the Beidou short message communication technology to achieve efficient and reliable communication of offshore workers in an emergency, ensure that the warning information can be sent to the shore control center in a timely and accurate manner, and thus quickly initiate a rescue operation.

[0058] After introducing the design concept of the embodiment of the present application, the following briefly introduces the application scenarios applicable to the technical solution of the embodiment of the present application. It should be noted that the following introduced application scenarios are only used to illustrate the embodiment of the present application rather than to limit it. In the specific implementation process, the technical solution provided by the embodiment of the present application can be flexibly applied according to actual needs.

[0059] As Figure 1 shown, an electronic device provided by an embodiment of the present application, the electronic device can specifically be a maritime emergency rescue device 10 based on Beidou short messages.

[0060] Among them, the maritime emergency rescue device 10 based on Beidou short message can perform maritime emergency rescue based on Beidou short message. For example, it can be a personal computer (PC), a server, a laptop computer, etc. The maritime emergency rescue device 10 based on Beidou short message may include one or more processors 101, a memory 102, an I / O interface 103, and a database 104. Specifically, the processor 101 can be a central processing unit (CPU), or a digital processing unit, etc. The memory 102 can be a volatile memory, such as a random-access memory (RAM); the memory 102 can also be a non-volatile memory, such as a read-only memory, a flash memory, a hard disk drive (HDD), or a solid-state drive (SSD); or the memory 102 is any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory 102 can be a combination of the above memories. Part of the program instructions of the maritime emergency rescue method based on Beidou short message provided by the embodiments of the present application can be stored in the memory 102. When these program instructions are executed by the processor 101, they can be used to implement the steps of the maritime emergency rescue method based on Beidou short message provided by the embodiments of the present application, so as to solve the technical problems that the efficiency and success rate of the existing maritime emergency rescue methods are both relatively low. The database 104 can be used to store early warning information, rescue strategies, collected images, disaster information, voice information 、 data such as text information, location information, and distress information.

[0061] In the embodiments of the present application, the maritime emergency rescue device 10 based on Beidou short message can obtain a maritime emergency rescue instruction through the I / O interface 103. Then, the processor 101 of the maritime emergency rescue device 10 based on Beidou short message will improve the efficiency and success rate of maritime emergency rescue according to the program instructions of the maritime emergency rescue method based on Beidou short message provided by the embodiments of the present application in the memory 102. In addition, early warning information, rescue strategies, collected images, disaster information, voice information 、 data such as text information, location information, and distress information can be stored in the database 104.

[0062] Of course, the method provided by the embodiments of the present application is not limited to Figure 1In the application scenario shown, it can also be used in other possible application scenarios, which are not limited in the embodiments of this application. For Figure 1 The functions that can be achieved by each device in the application scenario shown will be described together in the subsequent method embodiments, and will not be elaborated here too much. Next, the method of the embodiments of this application will be introduced with reference to the drawings.

[0063] As Figure 2 shown, it is a schematic diagram of a method for maritime emergency rescue based on Beidou short message in the embodiments of this application. This method can be applied to a maritime emergency rescue system including Beidou intelligent terminals, shore control centers, and integrated networking. The integrated networking is composed of a Beidou short message communication network and a 5G maritime communication network, and this method can be executed by Figure 1 the maritime emergency rescue device 10 based on Beidou short message in it. Specifically, the process of this method is introduced as follows.

[0064] Step 201: When offshore workers encounter an emergency, use a Beidou intelligent terminal to send early warning information to the shore control center through the integrated networking.

[0065] In the embodiments of this application, the early warning information may include a distress message and a positioning message. Among them, the distress message and the positioning message are immediately generated by the Beidou intelligent terminal according to the acquired current position information when starting the alarm process.

[0066] In order to conduct maritime emergency rescue in a timely and efficient manner, in the embodiments of this application, the deployment of Beidou intelligent terminals is also required before conducting maritime emergency rescue. Specifically, Beidou intelligent terminals integrated with Beidou satellite navigation and short message communication functions can be equipped for offshore workers, and these Beidou intelligent terminals can be initialized, for example, the positioning parameters, communication protocols, etc. are initialized.

[0067] Based on this, the triggering and sending of early warning information can be carried out, that is, when offshore workers encounter an emergency (such as someone falling into the water, equipment failure, etc.), they can directly use the Beidou intelligent terminals equipped for offshore workers to send early warning information to the shore control center through the integrated networking.

[0068] Specifically, before using the Beidou intelligent terminal to send early warning information to the shore control center through integrated networking, artificial intelligence image recognition and speech recognition technologies can also be introduced to generate early warning information. That is, when the alarm is manually triggered, first, the Beidou intelligent terminal can be used to receive the alarm instruction manually triggered by the offshore operation personnel. Then, according to the alarm instruction, the Beidou intelligent terminal can use a camera to collect images of the distress scene to obtain the collected images. Next, the image recognition technology of the YOLOv5s network model can be used to process the collected images. Thus, by analyzing the on-site situation, such as judging whether there is a fire, ship capsizing, etc., the disaster situation information can be obtained. Then, in order to obtain more complete early warning information, in the embodiment of the present application, the Beidou intelligent terminal supports the voice alarm function, that is, the Beidou intelligent terminal can be used to receive the voice information describing the emergency situation input by the offshore operation personnel. Then, the voice recognition technology of the Hidden Markov Model (HMM) can be used to convert the voice information to obtain the text information. Finally, the disaster situation information, text information, positioning information, and distress information can be used to generate early warning information.

[0069] For example, when the camera captures an image of the equipment smoking, the offshore operation personnel also input the voice information describing "the equipment is smoking and a fire may occur" to the Beidou intelligent terminal. Then, the Beidou intelligent terminal will not only intelligently recognize the captured image of the equipment smoking, but also automatically recognize and convert the input voice information of "the equipment is smoking and a fire may occur", and add key information such as the obtained disaster situation information, text information, positioning information, and distress information to the early warning information to improve the accuracy and richness of the early warning information.

[0070] Furthermore, in order to achieve more efficient data transmission under the limited Beidou short message communication bandwidth, in the embodiment of the present application, when generating early warning information from the disaster situation information, text information, positioning information, and distress information, a multi-modal information compression method and an attention mechanism can also be used to process the obtained information.

[0071] Specifically, first, a multi-modal information compression method can be used to extract features (i.e., joint compression coding) from the disaster situation information, text information, positioning information, and distress information to obtain multiple feature vectors.

[0072] Then, the attention mechanism can be used to perform weighted fusion on these multiple feature vectors to obtain the fused multi-modal vector to highlight the key information. In practical applications, the weight values can be adaptively adjusted according to the actual situation. For example, in a rescue scenario, since the key features in the on-site image are more important for judging the rescue situation, a higher weight can be assigned to the disaster situation information vector corresponding to the on-site image (i.e., the image feature vector).

[0073] Next, the Discrete Cosine Transform (DCT) compression algorithm can be used to compress the fused multi-modal vector, so as to transform the fused multi-modal vector into the frequency domain, thereby obtaining the compressed multi-modal vector. Furthermore, since the DCT compression algorithm utilizes the characteristic that the human eye is more sensitive to low-frequency information to perform quantization encoding on the high-frequency part, remove redundant information, and reduce the amount of data. Therefore, based on this DCT compression algorithm, this application can greatly reduce the amount of data while ensuring information integrity, thereby ensuring that the warning information can be sent to the shore control center more quickly.

[0074] Finally, the warning information can be directly generated according to the compressed multi-modal vector.

[0075] Furthermore, in order to improve the stability and efficiency of communication, in the embodiment of this application, after the warning information is generated, it is possible to determine how to specifically select the Beidou short message communication network and the 5G maritime communication network in the fusion networking for communication according to the distance between the offshore operation personnel and the coast.

[0076] Specifically, if the distance between the offshore operation personnel and the coast is less than the preset distance (for example, the distance is less than 50 kilometers, that is, the inshore area), the Beidou intelligent terminal can be used to preferentially send the warning information to the shore control center through the 5G maritime communication network. Within the signal coverage range, the 5G maritime communication network has the characteristics of high speed and low latency, and can realize the rapid transmission of high-definition video and real-time big data. For example, at the rescue scene, the rescue personnel can use the 5G maritime communication network to transmit high-definition video images in real time, providing a more intuitive on-site situation for the shore control center to facilitate the formulation of rescue decisions.

[0077] If the distance between the offshore operation personnel and the coast is not less than the preset distance (for example, the distance is not less than 50 kilometers, that is, the open sea area), the Beidou intelligent terminal can be used to preferentially send the warning information to the shore control center through the Beidou short message communication network. Furthermore, through this fusion networking method, the advantages of the two communication technologies can be fully utilized to improve the stability and efficiency of communication.

[0078] Step 202: Formulate a rescue strategy by the shore control center according to the warning information and the current rescue resources.

[0079] In the embodiment of the present application, the shore - side control center will monitor the short message information on the Beidou satellite network in real - time. Furthermore, after the shore - side control center receives the warning information, it can parse and process the warning information by the shore - side control center to obtain the positioning information and the distress signal. Then, according to the positioning information, it can quickly determine the specific location of the offshore operating personnel in distress and determine the current rescue resources within the preset distance of the offshore operating personnel. Finally, according to the warning information and the current rescue resources, the shore - side control center can formulate a rescue strategy.

[0080] Furthermore, when formulating a rescue strategy by the shore - side control center according to the warning information and the current rescue resources, it can specifically formulate a differentiated rescue strategy according to the distance between the accident site and the land, the warning information and the current rescue resources; or, it can formulate a hierarchical rescue strategy according to the severity of the accident, the warning information and the current rescue resources.

[0081] Furthermore, when formulating a differentiated rescue strategy according to the distance between the accident site and the land, the warning information and the current rescue resources, there are specifically the following three situations:

[0082] In the first situation, if it is determined that the distance between the accident site and the land is within the preset short - distance range (for example, within 10 kilometers from the land), then a first rescue strategy can be formulated according to the distance between the accident site and the land, the warning information and the current rescue resources.

[0083] Among them, the first rescue strategy is used to first dispatch an emergency rescue ship and then mobilize a helicopter, that is, issue a precise dispatch order to the nearby emergency rescue ships and then mobilize the helicopter to go to the rescue immediately. At the same time, quickly organize a land medical first - aid team to assemble and standby on the shore, and coordinate the ambulance to take its place at a designated location nearby.

[0084] In the second situation, if it is determined that the distance between the accident site and the land is within the preset medium - distance range (for example, 10 - 30 kilometers from the land), then a second rescue strategy can be formulated according to the distance between the accident site and the land, the warning information and the current rescue resources.

[0085] Among them, the second rescue strategy is used to first dispatch a drone swarm and an unmanned rescue ship, and then mobilize a helicopter and an emergency rescue ship, that is, start a rescue mode of coordinated operation between internal rescue and external rescue. The drone swarm and the unmanned rescue ship, as the first echelon, set out first according to the position information in the warning information and return the preliminary situation assessment in time. The helicopter and the emergency rescue ship, as the second echelon, carry out rescue operations with the required materials and equipment.

[0086] In the third case, if it is determined that the distance between the accident site and the land is within a preset long distance range (for example, 30 kilometers away from the land), a third rescue strategy can be formulated based on the distance between the accident site and the land, early warning information and current rescue resources.

[0087] Among them, the third rescue strategy is to mobilize helicopters first and then dispatch emergency rescue ships, that is, to implement a three-dimensional rescue mode with air rescue forces as the core and coordinated rescue on land and sea. Taking advantage of the rapid maneuverability and long-distance flight of helicopters, according to the long-distance rescue needs of early warning, carrying medical supplies, rescue personnel and emergency communication equipment for rescue, and can continue to work after resupplying on the shore or rescue ships.

[0088] Furthermore, when formulating a hierarchical rescue strategy based on the severity of the accident, the warning information and the current rescue resources, there are specifically the following three situations:

[0089] In the first case, if the severity of the accident is determined to be a minor accident (for example, minor injuries to personnel, minor danger caused by minor equipment failure, etc.), a fourth rescue strategy can be formulated based on the severity of the accident, early warning information and current rescue resources.

[0090] Among them, the fourth rescue strategy is used for on-site autonomous rescue and shore-side remote guidance, that is, a rescue mode that integrates on-site autonomous rescue and shore-side remote guidance. The patrol ship and on-site staff are the core rescue entities. After receiving a minor accident warning, they immediately carry out rescue operations in an orderly manner based on the pre-established on-site emergency response plan and the details of the injuries covered by the warning information.

[0091] In the second case, if the severity of the accident is determined to be moderate (for example, personnel are seriously injured, partial damage to equipment affects normal operations, etc.), a fifth rescue strategy can be formulated based on the severity of the accident, early warning information and current rescue resources.

[0092] Among them, the fifth rescue strategy is used for remote guidance from the shore and helicopter transportation at sea, that is, to activate a professional emergency rescue response mechanism. For the injured and distressed, according to the injuries of the personnel in the early warning information and the on-site conditions, make preparations for treatment in advance, and maintain real-time communication with the shore medical expert team through telemedicine consultation to obtain the best treatment plan. For seriously injured and distressed people, helicopters will be hoisted to the nearest sea rescue base or offshore platform with medical conditions for emergency treatment, and then transferred to land hospitals after the injuries are stabilized.

[0093] In the third case, if the severity of the accident is determined to be a serious accident level (for example, large-scale equipment failure, fire, ship capsizing, etc.), a sixth rescue strategy can be formulated based on the severity of the accident, warning information and current rescue resources.

[0094] Among them, the sixth rescue strategy is used to activate the preset highest level emergency rescue plan at sea, that is, to implement a comprehensive rescue response mode. Immediately activate the highest level emergency rescue plan for offshore wind power, and at the same time send emergency rescue requests to surrounding marine rescue bases, relevant government departments and marine rescue forces. Emergency rescue ships quickly sail to the accident site, equipped with professional medical rescue teams and advanced medical equipment, and integrate and mobilize all available rescue resources.

[0095] Step 203: According to the rescue strategy, the shore control center sends rescue instructions and positioning information to the rescue personnel through the integrated network.

[0096] In an embodiment of the present application, after the rescue strategy is formulated, the shore control center can send detailed rescue instructions and positioning information to the rescue personnel through the integrated network according to the rescue strategy, so as to coordinate the nearest rescue forces (such as unmanned search and rescue ships, drone swarms, helicopters, inspection ships, etc.) to the location of the sea workers who are seeking help.

[0097] In a possible implementation, the rescue process can also be monitored and feedback can be provided. That is, during the rescue process, seafarers can continue to provide feedback on real-time location and status information to the shore control center through the Beidou smart terminal. The shore control center can then adjust the rescue strategy based on the feedback information received to ensure the effectiveness and safety of the rescue operation. Finally, after the rescue is completed, the Beidou smart terminal can be used to confirm the success of the rescue and send a feedback report to the shore control center.

[0098] In order to further improve the success rate of emergency rescue at sea, in an embodiment of the present application, a swarm of drones and an unmanned search and rescue ship can be used to collaboratively monitor the rescue process.

[0099] That is, during the rescue process, a collaborative monitoring formation consisting of a swarm of drones and unmanned search and rescue ships can be dispatched. The drones are equipped with high-definition cameras, thermal imagers, and communication relay equipment, and can conduct a large-scale search and monitoring of the rescue area in the air, and transmit on-site images and video information in real time. The unmanned search and rescue ship is equipped with sonar, water quality monitoring and other equipment, which can conduct close-range detection and monitoring on the water surface, such as searching for people in distress underwater and monitoring whether the surrounding water quality is polluted. Based on this, the collaborative monitoring formation can transmit the collected data to the shore control center in real time, providing more comprehensive and accurate information support for rescue decisions.

[0100] In summary, this application has the following advantages:

[0101] ①Since the Beidou satellite navigation system has global coverage capabilities and is not restricted by geographical location, it can provide real-time communication services globally. In the open sea area, offshore workers can also send emergency rescue signals to the shore control center through Beidou intelligent terminals, significantly expanding the communication coverage. Therefore, the problem of limited communication coverage is solved.

[0102] ②Due to the high reliability and fast response characteristics of Beidou short message communication, its communication delay is short, and the point-to-point communication delay is 1 - 5 seconds, enabling rapid information exchange and ensuring that warning information can be conveyed quickly. In addition, due to the high reliability of the Beidou satellite navigation system being particularly prominent in remote areas or disaster situations, it can ensure the security and stability of communication. Therefore, the problems of insufficient communication real-time and reliability are solved.

[0103] ③Since the cost of Beidou intelligent terminal devices is relatively low, and they are easy to deploy and operate, the usage threshold and cost burden are reduced. Furthermore, it helps to widely promote the use among offshore workers and improve the overall safety of offshore operations. Therefore, the problems of equipment complexity and cost are solved.

[0104] ④Since this application not only provides an emergency rescue communication function but can also be combined with existing maritime safety management systems to form a comprehensive maritime safety management solution. Furthermore, it helps to achieve comprehensive integration of information and collaborative work, improving the overall rescue efficiency. Therefore, the problem of the lack of a comprehensive solution is solved.

[0105] ⑤Since the position indicators currently worn by offshore workers can only send warning information to surrounding ships with AIS after falling into the water and cannot directly contact the shore end. While Beidou intelligent terminals can directly send warning information and positioning data to the shore control center through satellites, achieving direct and efficient transmission of warning information. Therefore, the problem of limited transmission of warning information is solved.

[0106] Obviously, this application has advantages such as global coverage and real-time communication, high-precision positioning, two-way communication capabilities, low cost and easy deployment, and comprehensive solutions. Based on this, this application realizes efficient and reliable communication for offshore workers in emergency situations by integrating Beidou intelligent terminals, solves the problems existing in the prior art in maritime emergency rescue communication, improves the sending efficiency of warning information and the response speed of rescue operations, and provides a strong guarantee for the life safety of offshore workers.

[0107] Based on the same inventive concept, an embodiment of this application provides a maritime emergency rescue device 30 based on Beidou short messages, which is applied to a maritime emergency rescue system including a Beidou intelligent terminal, a shore control center, and a converged network. The converged network is composed of a Beidou short message communication network and a 5G maritime communication network; as Figure 3As shown in the figure, the maritime emergency rescue device 30 based on Beidou short message includes:

[0108] A communication module 301, which is used to, when offshore operation personnel encounter an emergency, use a Beidou intelligent terminal to send early warning information to the shore control center through integrated networking; among them, the early warning information includes a distress message and a positioning message;

[0109] A data processing module 302, which is used to formulate a rescue strategy by the shore control center according to the early warning information and current rescue resources;

[0110] The communication module 301 is also used to send rescue instructions and positioning information to rescue personnel by the shore control center through integrated networking according to the rescue strategy.

[0111] Optionally, the maritime emergency rescue device 30 based on Beidou short message further includes an alarm trigger module 303, which is used for:

[0112] Receiving an alarm instruction manually triggered by offshore operation personnel by using a Beidou intelligent terminal;

[0113] According to the alarm instruction, using a camera to collect images of the distress scene to obtain collected images;

[0114] Processing the collected images by using a YOLOv5s network model to obtain disaster situation information;

[0115] Receiving voice information input by offshore operation personnel by using a Beidou intelligent terminal;

[0116] Converting the voice information by using a Hidden Markov Model (HMM) to obtain text information;

[0117] Generating early warning information from the disaster situation information, text information, positioning information and distress information.

[0118] Optionally, the alarm trigger module 303 is also used for:

[0119] Using a multi-modal information compression method to extract features from the disaster situation information, text information, positioning information and distress information to obtain multiple feature vectors;

[0120] Using an attention mechanism to perform weighted fusion on the multiple feature vectors to obtain a fused multi-modal vector;

[0121] Using a Discrete Cosine Transform (DCT) compression algorithm to compress the fused multi-modal vector to obtain a compressed multi-modal vector;

[0122] Generating early warning information according to the compressed multi-modal vector.

[0123] Optionally, the communication module 301 is also used for:

[0124] If the distance between the offshore operation personnel and the coast is less than the preset distance, the Beidou intelligent terminal is adopted to send the warning information to the shore control center through the 5G maritime communication network;

[0125] If the distance between the offshore operation personnel and the coast is not less than the preset distance, the Beidou intelligent terminal is adopted to send the warning information to the shore control center through the Beidou short message communication network.

[0126] Optionally, the data processing module 302 is further configured to:

[0127] Adopt the shore control center to analyze and process the warning information to obtain the positioning information;

[0128] Determine the current rescue resources within the preset distance of the offshore operation personnel according to the positioning information;

[0129] Formulate a rescue strategy by the shore control center according to the warning information and the current rescue resources.

[0130] Optionally, the data processing module 302 is further configured to:

[0131] Formulate a differentiated rescue strategy according to the distance between the accident site and the land, the warning information and the current rescue resources; or,

[0132] Formulate a hierarchical rescue strategy according to the severity of the accident, the warning information and the current rescue resources.

[0133] Optionally, the data processing module 302 is further configured to:

[0134] If it is determined that the distance between the accident site and the land is within the preset short-distance range, a first rescue strategy is formulated according to the distance between the accident site and the land, the warning information and the current rescue resources; wherein, the first rescue strategy is used to dispatch the emergency rescue ship first and then mobilize the helicopter.

[0135] If it is determined that the distance between the accident site and the land is within the preset medium-distance range, a second rescue strategy is formulated according to the distance between the accident site and the land, the warning information and the current rescue resources; wherein, the second rescue strategy is used to dispatch the unmanned aerial vehicle group and the unmanned rescue ship first and then mobilize the helicopter and the emergency rescue ship;

[0136] If it is determined that the distance between the accident site and the land is within the preset long-distance range, a third rescue strategy is formulated according to the distance between the accident site and the land, the warning information and the current rescue resources; wherein, the third rescue strategy is used to mobilize the helicopter first and then dispatch the emergency rescue ship.

[0137] Optionally, the data processing module 302 is further configured to:

[0138] If it is determined that the severity of the accident is a minor accident level, a fourth rescue strategy is formulated based on the severity of the accident, the warning information, and the current rescue resources; wherein, the fourth rescue strategy is used for on-site autonomous rescue and shore-end remote guidance;

[0139] If it is determined that the severity of the accident is a moderate accident level, a fifth rescue strategy is formulated based on the severity of the accident, the warning information, and the current rescue resources; wherein, the fifth rescue strategy is used for shore-end remote guidance and helicopter sea transportation nearby;

[0140] If it is determined that the severity of the accident is a serious accident level, a sixth rescue strategy is formulated based on the severity of the accident, the warning information, and the current rescue resources; wherein, the sixth rescue strategy is used to activate the preset highest-level maritime emergency rescue plan.

[0141] The maritime emergency rescue device 30 based on Beidou short message can be used to execute Figure 2 the method executed in the embodiments shown, therefore, for the functions that can be realized by each functional module of the maritime emergency rescue device 30 based on Beidou short message, reference can be made to Figure 2 the description of the embodiments shown, and details are not repeated here.

[0142] In some possible implementation manners, each aspect of the method provided in this application can also be implemented in the form of a program part, which includes program code. When the program part runs on a computer device, the program code is used to cause the computer device to execute the steps in the method according to various exemplary implementation manners of this application described above in this specification. For example, the computer device can execute the method executed in the embodiments shown in Figure 2 the embodiments shown.

[0143] Those of ordinary skill in the art will understand that all or part of the steps of implementing the above method embodiments can be completed by hardware related to program instructions. The foregoing program can be stored in a computer-readable storage medium. When the program is executed, it performs the steps including those of the above method embodiments. The foregoing storage medium includes: removable storage devices, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs, and other various media that can store program codes. Alternatively, if the above integrated units of the present application are implemented in the form of software function modules and sold or used as independent components, they can also be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the embodiments of the present application, in essence, or the part that contributes to the prior art, can be embodied in the form of software components. The computer software components are stored in a storage medium and include several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in the various embodiments of the present application. The foregoing storage medium includes: removable storage devices, ROM, RAM, magnetic disks, or optical discs, and other various media that can store program codes.

[0144] Although the preferred embodiments of the present application have been described, those skilled in the art can make additional changes and modifications once they learn the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications falling within the scope of the present application.

[0145] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these changes and modifications.

Claims

1. A maritime emergency rescue method based on Beidou short message, characterized in that, Applied to a maritime emergency rescue system including a Beidou intelligent terminal, a shore control center, and a converged network, where the converged network consists of a Beidou short message communication network and a 5G maritime communication network; the method includes: When offshore workers encounter an emergency, use the Beidou intelligent terminal to send a warning message to the shore control center through the converged network; where the warning message includes a distress message and a positioning message; According to the warning message and current rescue resources, use the shore control center to formulate a rescue strategy; According to the rescue strategy, use the shore control center to send rescue instructions and positioning information to rescue personnel through the converged network.

2. The method according to claim 1, wherein Before using the Beidou intelligent terminal to send a warning message to the shore control center through the converged network, the method further includes: Use the Beidou intelligent terminal to receive an alarm instruction manually triggered by the offshore workers; According to the alarm instruction, use a camera to collect images of the distress scene to obtain collected images; Use the YOLOv5s network model to process the collected images to obtain disaster information; Use the Beidou intelligent terminal to receive voice information input by the offshore workers; Use the Hidden Markov Model (HMM) to convert the voice information to obtain text information; Generate the warning message from the disaster information, the text information, the positioning information, and the distress message.

3. The method according to claim 2, wherein The step of generating the warning message from the disaster information, the text information, the positioning information, and the distress message includes: Use the multi-modal information compression method to extract features from the disaster information, the text information, the positioning information, and the distress message to obtain multiple feature vectors; Use the attention mechanism to perform weighted fusion on the multiple feature vectors to obtain a fused multi-modal vector; Use the Discrete Cosine Transform (DCT) compression algorithm to compress the fused multi-modal vector to obtain a compressed multi-modal vector; Generate the warning message according to the compressed multi-modal vector.

4. The method according to claim 1, wherein The step of using the Beidou intelligent terminal to send a warning message to the shore control center through the converged network includes: If the distance between the offshore workers and the coast is less than a preset distance, use the Beidou intelligent terminal to send the warning message to the shore control center through the 5G maritime communication network; If the distance between the offshore workers and the coast is not less than the preset distance, use the Beidou intelligent terminal to send the warning message to the shore control center through the Beidou short message communication network.

5. The method according to claim 1, characterized in that, The step of using the shore control center to formulate a rescue strategy according to the warning message and current rescue resources includes: Use the shore control center to parse and process the warning message to obtain the positioning information; According to the positioning information, determine the current rescue resources within the preset distance of the offshore workers; According to the warning message and the current rescue resources, use the shore control center to formulate a rescue strategy.

6. The method according to claim 5, wherein The step of formulating a rescue strategy by the shore control center according to the warning information and the current rescue resources includes: Formulating a differentiated rescue strategy according to the distance between the accident site and the land, the warning information, and the current rescue resources; or, Formulating a hierarchical rescue strategy according to the severity of the accident, the warning information, and the current rescue resources.

7. The method according to claim 6, wherein The step of formulating a differentiated rescue strategy according to the distance between the accident site and the land, the warning information, and the current rescue resources includes: If it is determined that the distance between the accident site and the land is within a preset short-distance range, then formulate a first rescue strategy according to the distance between the accident site and the land, the warning information, and the current rescue resources; wherein, the first rescue strategy is used to first dispatch an emergency rescue ship and then mobilize a helicopter. If it is determined that the distance between the accident site and the land is within a preset medium-distance range, then formulate a second rescue strategy according to the distance between the accident site and the land, the warning information, and the current rescue resources; wherein, the second rescue strategy is used to first dispatch a drone swarm and an unmanned rescue ship, and then mobilize a helicopter and an emergency rescue ship; If it is determined that the distance between the accident site and the land is within a preset long-distance range, then formulate a third rescue strategy according to the distance between the accident site and the land, the warning information, and the current rescue resources; wherein, the third rescue strategy is used to first mobilize a helicopter and then dispatch an emergency rescue ship.

8. The method according to claim 6, characterized in that, The step of formulating a hierarchical rescue strategy according to the severity of the accident, the warning information, and the current rescue resources includes: If it is determined that the severity of the accident is a minor accident level, then formulate a fourth rescue strategy according to the severity of the accident, the warning information, and the current rescue resources; wherein, the fourth rescue strategy is used for on-site autonomous rescue and shore-end remote guidance; If it is determined that the severity of the accident is a moderate accident level, then formulate a fifth rescue strategy according to the severity of the accident, the warning information, and the current rescue resources; wherein, the fifth rescue strategy is used for shore-end remote guidance and helicopter sea transportation nearby; If it is determined that the severity of the accident is a severe accident level, then formulate a sixth rescue strategy according to the severity of the accident, the warning information, and the current rescue resources; wherein, the sixth rescue strategy is used to activate a preset highest-level maritime emergency rescue plan.

9. A maritime emergency rescue device based on Beidou short message, characterized in that, Applied to a maritime emergency rescue system including a Beidou intelligent terminal, a shore control center, and a converged network, the converged network consists of a Beidou short message communication network and a 5G maritime communication network; the device includes: A communication module, used to when offshore operation personnel encounter an emergency, use the Beidou intelligent terminal to send warning information to the shore control center through the converged network; wherein, the warning information includes a distress message and a positioning information; A data processing module, used to formulate a rescue strategy by the shore control center according to the warning information and the current rescue resources; The communication module is further configured to send rescue instructions and positioning information to rescue personnel by the shore control center through the integrated networking according to the rescue strategy.

10. An electronic device, characterized in that, The device includes: a memory for storing program instructions; a processor for calling the program instructions stored in the memory and executing the method according to any one of claims 1-8 according to the obtained program instructions.

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