Cruise ship emergency evacuation guidance system and method based on real-time positioning and physiological data

Abstract

The application discloses a kind of based on real-time positioning and physiological data's cruise ship emergency evacuation guiding system and method, including bracelet terminal, monitoring subsystem, server platform and client;Bracelet terminal is worn in passenger or crew hand, including heart rate sensor, navigation display and prompt unit, wireless communication module and control circuit etc..Heart rate sensor is used to collect the heart rate information of wearer, navigation display and prompt unit are used to display route guide and provide vibration or voice prompt.By constructing dynamic electronic fence based on computer vision, combined with real-time personnel position and channel topological information to carry out evacuation simulation, generate and dynamically adjust the optimal evacuation path, and use physiological data such as heart rate to optimize the evacuation guiding strategy, trigger nearby rescue dispatch for people with abnormal vital signs, so as to improve the efficiency and safety of cruise ship emergency evacuation.

Description

Technical Field

[0001] This invention belongs to the field of ship safety management, specifically relating to a cruise ship emergency evacuation guidance system and method based on real-time positioning and physiological data. Background Technology

[0002] During the operation of large cruise ships, the large number of passengers, complex spatial structure, and limited evacuation routes significantly increase the difficulty of emergency response in the event of emergencies such as fire, explosion, or flooding. Currently, cruise ships typically rely on public address systems to issue evacuation instructions in emergencies, with crew members using their experience to guide passengers to assembly points or lifeboat boarding areas. However, this method struggles to accurately and promptly account for passenger density in different areas, congestion in passageways, and dynamic changes in dangerous areas, easily leading to overcrowding in certain areas, passengers running in the wrong direction, and even secondary accidents such as stampedes.

[0003] With the development of positioning technology and wearable devices, some solutions have attempted to incorporate personnel location data and simple navigation information to assist evacuation. However, most of these solutions only provide static evacuation routes and lack dynamic optimization mechanisms based on real-time location feedback. Furthermore, existing systems pay little attention to passengers' physiological states and cannot differentiate between individuals with varying levels of anxiety or abnormal vital signs based on physiological data such as heart rate. This means that simple navigation information is ineffective for individuals who are extremely anxious or already experiencing physical discomfort, and may even be unusable due to its complexity.

[0004] Meanwhile, existing electronic fence technology is mostly used for daily area restriction and security protection. It is usually a statically configured area boundary that does not dynamically adjust the boundary in combination with danger information such as fire and smoke, and it is even more impossible to link evacuation route planning and individual guidance on the basis of electronic fence.

[0005] Therefore, there is an urgent need for an emergency evacuation guidance method and system that can comprehensively utilize real-time personnel location, physiological data, and video surveillance information to quickly generate and continuously optimize evacuation routes in emergency events such as cruise ship fires, and provide differentiated guidance and rescue dispatch based on the physiological state of different personnel. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a cruise ship emergency evacuation guidance system and method based on real-time positioning and physiological data, which solves the problem in the prior art that the boundaries of the electronic fence cannot be dynamically adjusted when a cruise ship is in danger.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] The cruise ship emergency evacuation guidance system, based on real-time location and physiological data, includes a wristband terminal, a monitoring subsystem, a server platform, and a client application; among which,

[0009] The wristband is worn by passengers or crew members to collect the wearer's heart rate and location information, display route guidance, and issue prompts.

[0010] The monitoring subsystem includes several cameras and a video analysis module. The cameras are deployed in key public areas of the ship, and the video analysis module is used to analyze fire, smoke or personnel gathering. Based on the danger signs detected by the cameras, the relevant areas are marked as danger zones in the camera footage.

[0011] The server platform is used to receive data from various modules for background processing and to coordinate the entire emergency evacuation process.

[0012] The client includes a duty terminal APP and a passenger APP. The duty terminal APP is set on the mobile phones or wristbands of the control center and crew members to view heat maps, danger zones and evacuation progress. The passenger APP is set on the mobile phones or wristbands of passengers for navigation and parent-child pairing in normal times, and displays evacuation information and sends out warning signals in emergencies.

[0013] The server platform includes a data interaction and storage module, an electronic fence module, an evacuation simulation module, a route optimization module, and a rescue dispatch module; among which...

[0014] The electronic fence module constructs an initial electronic fence for dangerous areas on the interior plane of the ship based on the installation location, viewing angle, and field of view of the camera, and updates the current electronic fence for dangerous areas based on real-time data.

[0015] The evacuation simulation module, based on the current location of each person on the node or passage and the electronic fence information, forms an effective passage network with "dangerous areas removed" on the topology map, generates the initial evacuation route, and sends it to the client.

[0016] The route optimization module obtains real-time location information of personnel and current electronic fence information, and dynamically adjusts and updates evacuation routes;

[0017] The rescue dispatch module determines the vital signs and rescue level of the people on board based on the real-time heart rate and location information sent by the wristband terminal, and sends rescue guidance information to the corresponding personnel according to different rescue levels.

[0018] The data interaction and storage module is used to store ship structure data, data acquired by each module of the system, and data exchanged between modules.

[0019] The electronic fence module first transforms the hazardous areas in the image onto the planar layout inside the ship, forming one or more hazardous area boundaries and constructing an initial electronic fence; then, at certain intervals, it forms new hazardous area boundaries on the planar layout based on new hazardous areas, dynamically updating the electronic fence.

[0020] The electronic fence module obtains the current location of all located personnel, determines the spatial relationship between the location points and the boundaries of the electronic fence, and when it is found that some location points are approaching or have entered the electronic fence range, the server platform immediately sends a warning message to the corresponding wristband terminal or passenger APP, reminding them to stay away from the current area or act according to the subsequent evacuation instructions.

[0021] The wristband terminal is equipped with a heart rate sensor, which collects heart rate data at preset time intervals and sends it to the server platform via a wireless communication module.

[0022] The server platform also includes a heart rate guidance module, which sets one or more heart rate thresholds based on the characteristics of different ages and groups of people, and divides the physiological state of people into several levels. The rescue dispatch module sets the rescue level according to the different physiological state levels.

[0023] The specific scheduling process of the rescue dispatch module is as follows:

[0024] For individuals whose physiological condition is normal, route guidance will be pushed at a normal frequency.

[0025] For individuals under stress, increase the frequency of reminders.

[0026] For personnel with severely abnormal heart rates and whose location information remains almost unchanged for a certain period of time, it is inferred that the personnel may have stopped moving or even be experiencing physical discomfort or fainting. The rescue dispatch module marks the personnel as urgently needing rescue and highlights their location and heart rate status on the duty terminal interface. At the same time, it searches for the locations of other crew members within a certain range of the personnel and selects one or more suitable personnel as temporary rescuers based on the distance and access conditions between them, and sends rescue instructions to their wristband terminals. The rescue task is also synchronized with medical personnel or professional rescue personnel.

[0027] The specific working process of the path optimization module is as follows:

[0028] After the initial evacuation order was issued, people began to move along the path, and the server platform continuously received people's location information and acquired new information about dangerous areas.

[0029] The path optimization module estimates the congestion level of each channel based on real-time personnel distribution. When it finds that the congestion level of a certain channel exceeds the preset range, or when a previously safe channel is marked into the electronic fence, it triggers path rolling optimization.

[0030] During the rolling optimization process, the evacuation simulation module takes the current position of the personnel as the new initial state, recalculates the subsequent paths for some or all personnel, prioritizes adjusting the paths of personnel who are close to congested passages or new danger areas, and keeps the original routes unchanged for personnel who are still in relatively safe and unobstructed passages.

[0031] The updated route instructions are sent incrementally to the relevant wristband terminals and passenger apps by the route optimization module. The wristband terminals will display clear prompts to remind passengers of the new guidance content, thus achieving dynamic adjustments.

[0032] Both the duty terminal APP and the passenger APP include two independently operating modes that can be automatically switched: a daily operation mode and an emergency mode. In the daily operation mode, the passenger APP provides navigation, parent-child location services, and heart rate monitoring, while the duty terminal APP and the crew APP are used to view heat maps and danger zones. Once the emergency mode is entered, it automatically switches to the "emergency interface," providing passengers with consistent evacuation guidance information together with the wristband terminal. In the emergency state, the wristband terminal uses a highly simplified interface, displaying only the information most directly related to the current action, and using voice and vibration to help passengers understand and perform the correct evacuation actions.

[0033] The cruise ship emergency evacuation guidance method uses real-time location and physiological data. When crew members and passengers board the cruise ship, they download and run the corresponding APP, wear a wristband terminal, and enter their basic personal information. The system automatically binds the ID number of the wristband terminal and passenger information. In normal operation mode, crew members and passengers use the normal functions. Once the emergency mode is entered, crew members and passengers will evacuate in an orderly manner according to the navigation prompts of the mobile terminal, wristband terminal, and the hardware equipped on the cruise ship.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] 1. This invention introduces a computer vision-based dynamic electronic fence, which can dynamically adjust the boundary of dangerous areas by combining hazard information such as flames and smoke, and promptly issue a warning to people approaching the dangerous area to stay away, reducing the risk of people accidentally entering the dangerous area; and uses real-time personnel location information and channel topology information to perform evacuation simulation and path rolling optimization.

[0036] 2. This invention can continuously update the evacuation route based on the actual evacuation progress and channel congestion, thereby improving the overall evacuation efficiency; it also classifies physiological states and adjusts guidance strategies by introducing heart rate data.

[0037] 3. This invention can provide more frequent guidance prompts for stressed individuals and automatically trigger nearby rescue dispatch for individuals with severely abnormal vital signs and stationary positions, thereby improving individual safety assurance capabilities in emergency situations.

[0038] 4. The specific positioning implementation method of this invention is decoupled, and it can be combined with various personnel positioning systems, which has good versatility and scalability. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the overall structure of the cruise ship emergency evacuation guidance system based on real-time positioning and physiological data provided in an embodiment of the present invention.

[0040] Figure 2 This is a schematic diagram of the electronic fence construction and dangerous area early warning process provided in an embodiment of the present invention.

[0041] Figure 3 This is a schematic diagram of the initial evacuation path generation process provided in an embodiment of the present invention.

[0042] Figure 4 This is a schematic diagram of the evacuation path rolling optimization process provided in an embodiment of the present invention.

[0043] Figure 5 This is a schematic diagram of the heart rate-based guidance optimization and rescue dispatch process provided in an embodiment of the present invention.

[0044] Figure 6 This is a schematic diagram of the platform interface provided in an embodiment of the present invention.

[0045] Figure 7 This is a schematic diagram of the interface of the wristband terminal in an emergency evacuation state, as provided in an embodiment of the present invention. Detailed Implementation

[0046] The structure and working process of the present invention will be further described below with reference to the accompanying drawings.

[0047] The purpose of this invention is to provide a cruise ship emergency evacuation guidance method and system based on real-time positioning and physiological data. By constructing a dynamic electronic fence based on computer vision, combining real-time personnel location and channel topology information for evacuation simulation, the optimal evacuation path is generated and dynamically adjusted. Furthermore, physiological data such as heart rate is used to optimize the evacuation guidance strategy, and nearby rescue dispatch is triggered for personnel with abnormal vital signs, thereby improving the efficiency and safety of cruise ship emergency evacuation.

[0048] The cruise ship emergency evacuation guidance system, based on real-time location and physiological data, includes a wristband terminal, a monitoring subsystem, a server platform, and a client application; among which,

[0049] The wristband is worn by passengers or crew members to collect the wearer's heart rate and location information, display route guidance, and issue prompts.

[0050] The monitoring subsystem includes several cameras and a video analysis module. The cameras are deployed in key public areas of the ship, and the video analysis module is used to analyze fire, smoke or personnel gathering. Based on the danger signs detected by the cameras, the relevant areas are marked as danger zones in the camera footage.

[0051] The server platform is used to receive data from various modules for background processing and to coordinate the entire emergency evacuation process.

[0052] The client includes a duty terminal APP and a passenger APP. The duty terminal APP is set on the mobile phones or wristbands of the control center and crew members to view heat maps, danger zones and evacuation progress. The passenger APP is set on the mobile phones or wristbands of passengers for navigation and parent-child pairing in normal times, and displays evacuation information and sends out warning signals in emergencies.

[0053] Specific embodiments, such as Figures 1 to 7 As shown:

[0054] The cruise ship emergency evacuation guidance system, based on real-time positioning and physiological data, includes a wristband terminal, a monitoring subsystem, a server platform, and a client application. The wristband terminal, worn by passengers or crew members, includes a heart rate sensor, a navigation display and prompt unit, a wireless communication module, and control circuitry. The heart rate sensor collects the wearer's heart rate information, while the navigation display and prompt unit displays route guidance and provides vibration or voice prompts.

[0055] The monitoring subsystem may include several cameras and video analytics modules. Cameras are deployed in key public areas of the vessel, and the video analytics modules are used to analyze fire, smoke, or crowd gatherings to provide information for electronic fencing and risk warning systems.

[0056] The server platform can include functional units such as an electronic fence module, an evacuation simulation module, a route optimization module, a heart rate guidance module, and a rescue dispatch module, which are used to coordinate the entire emergency evacuation process.

[0057] The personnel positioning system is used to provide real-time personnel location information to the server platform. In the preferred embodiment, a multi-source coupled personnel positioning system can be used, but other positioning implementation methods can also be used.

[0058] The client / platform can include a duty terminal and a passenger app. The duty terminal is typically used by crew members in the control center to view heat maps, danger zones, and evacuation progress; the passenger app can run on a mobile phone for navigation and parent-child bonding during normal times, and to display evacuation information in emergencies.

[0059] Through the above structure, the present invention realizes an overall architecture of "bottom-level positioning and monitoring system + upper-level intelligent evacuation decision-making + multi-terminal linkage guidance". Compared with the simple broadcast evacuation method in the background technology, it can manage the escape path of each area and even each individual more precisely.

[0060] The specific working principles and processes of each module of the system are explained in detail below:

[0061] 1. Working principle and technical effects of electronic fence construction:

[0062] See Figure 2 When the monitoring subsystem detects suspected flames, smoke, or other signs of danger, the video analysis module can mark the relevant area in the camera footage. Based on the camera's installation location, viewing angle, and field of view, the electronic fence module translates the hazardous area in the image onto the ship's internal planar layout, forming one or more hazardous area boundaries, thus constructing the initial electronic fence.

[0063] Based on this, the electronic fence module can periodically obtain the current location of all located personnel from the personnel positioning system and determine the spatial relationship between the location points and the boundaries of the electronic fence. When it is detected that certain location points are approaching or have entered the electronic fence range, the server platform can immediately send an early warning message to the corresponding wristband terminal or passenger APP, reminding them to move away from the current area or act according to subsequent evacuation instructions.

[0064] In this way, the present invention can dynamically adjust the extent of a dangerous area before it forms or during its spread, without relying on fixed, pre-defined dangerous areas, thus solving the problems of "delayed dangerous area identification and inability of evacuation routes to avoid dangerous areas in a timely manner" in the prior art. At the same time, the combination of electronic fences and specific evacuation route planning allows the system to automatically avoid these marked dangerous areas when calculating routes, further improving evacuation safety.

[0065] 2. The working principle of initial evacuation route generation:

[0066] See Figure 3When the ship's command center determines that personnel evacuation is necessary, the evacuation simulation module in the server platform can call the pre-stored ship structure data, abstract each room, passageway intersection, stairwell, assembly point and lifeboat boarding point as nodes, abstract passable passages as edges, and set parameters representing the passage capacity for each edge, such as capacity values ​​related to width and slope.

[0067] The evacuation simulation module obtains the current node location of each person or their position on the passageway from the personnel positioning system, and simultaneously obtains the current danger zone information from the electronic fence module. Nodes or edges located within the danger zone can be temporarily considered impassable, thus forming an effective passage network with "danger zones removed" on the topology map.

[0068] On this network, the evacuation simulation module uses computer path simulation to select the globally optimal solution and calculate evacuation routes to one or more safe assembly points for people in different areas. After generating the initial evacuation routes, the path optimization module can make certain balancing adjustments to the routes, such as avoiding excessive concentration of large numbers of people in certain passages, or, where possible, arranging relatively close or same-direction routes for family members with parent-child relationships to reduce the stress and confusion caused by the dispersal of family members.

[0069] Ultimately, the route optimization module can convert simplified route instructions for each passenger into commands suitable for display on the wristband terminal, such as only including information like "go to the nearest staircase" or "turn right at the next intersection," thereby reducing the burden on passengers to understand complex maps under stress. This is significantly effective in solving the problem of "abstract broadcast instructions and difficulty for passengers to understand specific action routes" in the background technology.

[0070] 3. The working principle of path rolling optimization:

[0071] See Figure 4 After the initial evacuation order was issued, personnel began moving along the designated path. The server platform continued to receive personnel location information through the personnel positioning system, while also acquiring new danger zone information from the monitoring subsystem.

[0072] The path optimization module can estimate the congestion level of each passage based on real-time personnel distribution, such as the number of people per unit length and their movement speed. When the congestion level of a passage exceeds a preset range, or when a previously safe passage is marked into an electronic fence due to the development of a fire, path rolling optimization can be triggered.

[0073] During the rolling optimization process, the evacuation simulation module uses the current positions of personnel as the new initial state and recalculates the subsequent paths for some or all personnel. To avoid further chaos caused by frequently changing the paths of all personnel, this invention can prioritize adjusting the paths of personnel who are close to congested passages or new danger zones, while keeping the original routes unchanged for personnel who are still in relatively safe and unobstructed passages as much as possible.

[0074] The updated route instructions will be incrementally distributed to the relevant wristband terminals and passenger apps by the route optimization module. The wristband terminals can remind passengers of the new guidance content through obvious prompts, such as displaying "Route updated" or playing a specific prompt tone, thereby achieving dynamic adjustment without increasing cognitive burden.

[0075] Through this rolling optimization mechanism, the present invention can not only handle one-time evacuation plans according to the development of an accident, but also continuously fine-tune the path according to the real-time situation during the evacuation process, thereby avoiding the problem of "initial plan failing after environmental changes" and improving the adaptability and efficiency of the overall evacuation process.

[0076] 4. Heart rate-based guidance optimization and rescue dispatch principles:

[0077] See Figure 5 The heart rate sensor on the wristband terminal can collect heart rate data at short intervals and send it to the server platform via a wireless communication module. The heart rate guidance module can set one or more heart rate thresholds according to the characteristics of different ages and groups of people, roughly classifying the physiological state of individuals into several levels such as normal, tense, and severely abnormal.

[0078] For individuals in a normal physiological state, the system can provide route guidance at a normal frequency; for individuals experiencing stress, the heart rate guidance module can request the route optimization module to increase the frequency of its prompts, such as providing more frequent turning prompts or shortening the time interval between two voice broadcasts, to help the individual follow the guidance even under stress.

[0079] When a person's heart rate is severely abnormal and their location information remains almost unchanged for a certain period of time, it can be inferred that the person may have stopped moving or even be experiencing physical discomfort or fainting. At this time, the rescue dispatch module can mark the person as someone in urgent need of rescue and highlight their location and heart rate status on the duty terminal interface.

[0080] Furthermore, the rescue dispatch module can search for the location of other crew members within a certain range near the person, and select one or more suitable personnel as temporary rescuers based on the distance between them and the passage conditions, and send rescue instructions to their wristband terminals, such as prompting "There is a passenger nearby who needs help. Please walk a few steps along the current passage and then turn left to reach the designated location."

[0081] Simultaneously, the rescue dispatch module can also synchronize the rescue task with medical personnel or professional rescuers, facilitating their advance preparation of necessary equipment and medicines. In this way, the present invention adds an active response mechanism to abnormal vital signs of individuals on top of overall evacuation, which helps increase the probability of rescue for individual high-risk individuals—a function generally lacking in the prior art.

[0082] 5. The collaborative technical effects between the platform and the APP:

[0083] See Figure 6 The duty terminal can display the floor plan of each floor, personnel heat map, hazardous area diagram, and congestion status of main passages. Through this graphical information, crew members can clearly understand the current evacuation progress and overall risk distribution, thus making more reasonable command decisions, such as temporarily closing certain areas, opening backup passages, or adjusting assembly points.

[0084] In normal operation mode, the passenger app can provide functions such as navigation, parent-child location tracking, and heart rate monitoring. When the system is not in emergency mode, these functions can be regarded as the "normal application layer" of the system and will not interfere with passengers' normal activities. Once emergency mode is entered, the app can automatically switch to the "emergency interface" and provide passengers with consistent evacuation guidance information together with the wristband terminal.

[0085] See Figure 7 In an emergency, the wristband terminal can use a highly simplified interface, displaying only the information most directly related to the current action, such as an arrow indicating the current direction of travel, the next key location to be reached, and the relative direction to the assembly point. By combining voice, vibration, and other methods, even in tense or noisy environments, there is still a high probability that passengers will understand and perform the correct evacuation actions.

[0086] In summary, this invention, through the coordinated operation of electronic fences, evacuation simulation, path rolling optimization, and heart rate-driven guidance and rescue mechanisms, enables cruise ships to not only achieve optimized evacuation of the entire population in the face of emergencies such as fires, but also to take into account the physiological state and special needs of individuals. Thus, it is significantly superior to traditional broadcast evacuation methods in terms of both efficiency and safety.

[0087] Based on the aforementioned system, a cruise ship emergency evacuation guidance method using real-time location and physiological data was also disclosed. When crew and passengers board the cruise ship, they download and run the corresponding app, wear wristbands, and register their basic personal information. The system automatically binds the wristband's ID number to the passenger information. In normal operation mode, crew and passengers use the standard functions. Once emergency mode is activated, crew and passengers evacuate in an orderly manner according to the navigation prompts provided by their mobile phones, wristbands, and the cruise ship's hardware. The specific steps include the following:

[0088] First, the server continuously acquires real-time location information of personnel output by the personnel positioning system and heart rate data uploaded by each wristband terminal, while simultaneously collecting real-time video data from the ship's monitoring equipment. The server performs flame detection, smoke detection, or receives crew members' markings of dangerous areas in the video footage to determine the current danger zone. Based on the camera installation location information and imaging parameters, the server maps the danger zone onto the cruise ship's planar coordinate system, forming a dynamic electronic fence.

[0089] Secondly, based on the real-time location information of the personnel and the boundary relationship of the electronic fence, the server determines whether each person is inside the danger zone or less than a preset safe distance from the boundary of the danger zone. For personnel who meet the above conditions, the server pushes a "stay away from danger zone" prompt message to the corresponding wristband terminal. The prompt message can be a text prompt, arrow indication, voice broadcast or vibration signal to reduce the probability of personnel accidentally entering or staying in the danger zone.

[0090] When a fire or other emergency is detected on the cruise ship requiring evacuation, the server, based on pre-stored information about the ship's structure and passageways, represents each cabin, corridor, stairwell, assembly point, and lifeboat boarding point as a node, and accessible passageways as edges, assigning passage capacity parameters related to width, slope, etc., to each edge. The computer then performs a simulation to determine the globally optimal evacuation path and optimizes personnel behavior through an adaptive group behavior model. With the goal of minimizing overall evacuation time or avoiding local congestion, it dynamically generates an initial evacuation path for each individual or group of individuals from their current location to a designated safe area or assembly point.

[0091] Subsequently, the server sends the initial evacuation route as route guidance information to the wristbands of the relevant personnel. This route guidance information may include the current direction of travel, key turning points to be passed, and the target assembly point. The wristband displays directional instructions on its screen or plays voice commands through its speaker, and uses different vibration patterns to prompt passengers to evacuate along the predetermined route.

[0092] During the actual evacuation, the server continuously receives updated real-time location information of personnel and changes in danger zones, and assesses the degree of congestion based on the personnel density in each passage. When it detects that the personnel density in some passages exceeds the preset congestion threshold, the area traversed by the original evacuation route is designated as a new danger zone, or a new safety exit is activated, the server triggers a path rolling optimization process, re-executes the evacuation simulation, generates updated evacuation routes, adjusts the evacuation instructions for affected personnel, and pushes the updated route guidance information back to the relevant wristband terminals, thereby achieving dynamic optimization of evacuation routes.

[0093] During the above process, the server classifies the physiological state of individuals based on heart rate data, including at least normal, tense, and severely abnormal states. For individuals in a tense state, the server increases the frequency of route guidance information pushed to their wristband terminals, enhances the number of voice broadcasts or the intensity of vibration prompts, to help them concentrate and reduce the probability of misoperation or going the wrong way due to tension. When a person's heart rate is detected to be severely abnormal and their location information change is less than a location change threshold within a preset time window, the server determines that the person may have lost mobility or is in a life-threatening situation, marks the person as requiring emergency rescue, and clearly identifies them on the command interface.

[0094] For personnel identified as requiring emergency rescue, the server searches for the current locations of other crew members within a preset range near their current location. It prioritizes personnel who are nearby and have relatively unobstructed access routes as potential rescuers and pushes rescue guidance information containing the location of the person in need of rescue and suggested rescue routes to their mobile terminals. Through this method, the present invention enables nearby rescue dispatch based on real-time location and physiological data, shortening rescue response time.

Claims

1. A cruise ship emergency evacuation guidance system based on real-time positioning and physiological data, characterized in that: It includes a wristband terminal, a monitoring subsystem, a server platform, and a client; among which, The wristband is worn by passengers or crew members to collect the wearer's heart rate and location information, display route guidance, and issue prompts. The monitoring subsystem includes several cameras and a video analysis module. The cameras are deployed in key public areas of the ship, and the video analysis module is used to analyze fire, smoke or personnel gathering. Based on the danger signs detected by the cameras, the relevant areas are marked as danger zones in the camera footage. The server platform is used to receive data from various modules for background processing and to coordinate the entire emergency evacuation process. The client includes a duty terminal APP and a passenger APP. The duty terminal APP is set on the mobile phones or wristbands of the control center and crew members to view heat maps, danger zones and evacuation progress. The passenger APP is set on the mobile phones or wristbands of passengers for navigation and parent-child pairing in normal times, and displays evacuation information and sends out warning signals in emergencies.

2. The cruise ship emergency evacuation guidance system based on real-time positioning and physiological data according to claim 1, characterized in that: The server platform includes a data interaction and storage module, an electronic fence module, an evacuation simulation module, a route optimization module, and a rescue dispatch module; among which... The electronic fence module constructs an initial electronic fence for dangerous areas on the interior plane of the ship based on the installation location, viewing angle, and field of view of the camera, and updates the current electronic fence for dangerous areas based on real-time data. The evacuation simulation module, based on the current location of each person on the node or passage and the electronic fence information, forms an effective passage network with "dangerous areas removed" on the topology map, generates the initial evacuation route, and sends it to the client. The route optimization module obtains real-time location information of personnel and current electronic fence information, and dynamically adjusts and updates evacuation routes; The rescue dispatch module determines the vital signs and rescue level of the people on board based on the real-time heart rate and location information sent by the wristband terminal, and sends rescue guidance information to the corresponding personnel according to different rescue levels. The data interaction and storage module is used to store ship structure data, data acquired by each module of the system, and data exchanged between modules.

3. The cruise ship emergency evacuation guidance system based on real-time positioning and physiological data according to claim 2, characterized in that: The electronic fence module first transforms the hazardous areas in the image onto the planar layout inside the ship, forming one or more hazardous area boundaries and constructing an initial electronic fence; then, at certain intervals, it forms new hazardous area boundaries on the planar layout based on new hazardous areas, dynamically updating the electronic fence.

4. The cruise ship emergency evacuation guidance system based on real-time positioning and physiological data according to claim 3, characterized in that: The electronic fence module obtains the current location of all located personnel, determines the spatial relationship between the location points and the boundaries of the electronic fence, and when it is found that some location points are approaching or have entered the electronic fence range, the server platform immediately sends a warning message to the corresponding wristband terminal or passenger APP, reminding them to stay away from the current area or act according to the subsequent evacuation instructions.

5. The cruise ship emergency evacuation guidance system based on real-time positioning and physiological data according to claim 2, characterized in that: The wristband terminal is equipped with a heart rate sensor, which collects heart rate data at preset time intervals and sends it to the server platform via a wireless communication module.

6. The cruise ship emergency evacuation guidance system based on real-time positioning and physiological data according to claim 5, characterized in that: The server platform also includes a heart rate guidance module, which sets one or more heart rate thresholds based on the characteristics of different ages and groups of people, and divides the physiological state of people into several levels. The rescue dispatch module sets the rescue level according to the different physiological state levels.

7. The cruise ship emergency evacuation guidance system based on real-time positioning and physiological data according to claim 6, characterized in that: The specific scheduling process of the rescue dispatch module is as follows: For individuals whose physiological condition is normal, route guidance will be pushed at a normal frequency. For individuals under stress, increase the frequency of reminders. For personnel with severely abnormal heart rates and whose location information remains almost unchanged for a certain period of time, it is inferred that the personnel may have stopped moving or even be experiencing physical discomfort or fainting. The rescue dispatch module marks the personnel as urgently needing rescue and highlights their location and heart rate status on the duty terminal interface. At the same time, it searches for the locations of other crew members within a certain range of the personnel and selects one or more suitable personnel as temporary rescuers based on the distance and access conditions between them, and sends rescue instructions to their wristband terminals. The rescue task is also synchronized with medical personnel or professional rescue personnel.

8. The cruise ship emergency evacuation guidance system based on real-time positioning and physiological data according to claim 7, characterized in that: The specific working process of the path optimization module is as follows: After the initial evacuation order was issued, people began to move along the path, and the server platform continuously received people's location information and acquired new information about dangerous areas. The path optimization module estimates the congestion level of each channel based on real-time personnel distribution. When it finds that the congestion level of a certain channel exceeds the preset range, or when a previously safe channel is marked into the electronic fence, it triggers path rolling optimization. During the rolling optimization process, the evacuation simulation module takes the current position of the personnel as the new initial state, recalculates the subsequent paths for some or all personnel, prioritizes adjusting the paths of personnel who are close to congested passages or new danger areas, and keeps the original routes unchanged for personnel who are still in relatively safe and unobstructed passages. The updated route instructions are incrementally distributed to the relevant wristband terminals and passenger apps by the route optimization module. The wristband terminals will then display clear prompts to remind passengers of the new guidance content, enabling dynamic adjustments.

9. The cruise ship emergency evacuation guidance system based on real-time positioning and physiological data according to claim 1, characterized in that: Both the duty terminal APP and the passenger APP include two independently operating modes that can be automatically switched: a daily operation mode and an emergency mode. In the daily operation mode, the passenger APP provides navigation, parent-child location services, and heart rate monitoring, while the duty terminal APP and the crew APP are used to view heat maps and danger zones. Once the emergency mode is entered, it automatically switches to the "emergency interface," providing passengers with consistent evacuation guidance information together with the wristband terminal. In the emergency state, the wristband terminal uses a highly simplified interface, displaying only the information most directly related to the current action, and using voice and vibration to help passengers understand and perform the correct evacuation actions.

10. A cruise ship emergency evacuation guidance method based on real-time positioning and physiological data from any one of claims 1 to 9, characterized in that: When crew and passengers board the cruise ship, they download and run the corresponding APP, wear wristband terminals, and enter their basic personal information. The system automatically binds the ID number of the wristband terminal and the passenger information. In normal operation mode, crew and passengers use the daily functions. Once emergency mode is entered, crew and passengers will evacuate in an orderly manner according to the navigation prompts of the mobile terminal, wristband terminal, and the hardware provided by the cruise ship.

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