Wearable terminal for warship member positioning rescue and positioning rescue system

Abstract

The utility model provides a wearable terminal for warship member positioning rescue, and relates to the technical field of overwater emergency rescue. The wearable terminal for warship crew positioning rescue comprises a main control unit, and a first positioning module, a second positioning module, a communication module and an acceleration sensing module which are electrically connected with the main control unit, the first positioning module is used for positioning calculation of the wearable terminal in a cabin of a naval vessel; the second positioning module is used for positioning calculation of the wearable terminal on the deck of the naval vessel and after falling into water; the communication module is used for data communication between the wearable terminal and the ship-borne gateway; the acceleration sensing module is used for determining whether the wearable terminal falls or not. According to the wearable terminal for warship member positioning rescue, two positioning technologies with complementary advantages and the communication module are applied to positioning and rescue, effective alarm communication is ensured, and warship member falling information is obtained in real time by using the acceleration sensor. On the basis, the utility model further provides a warship crew positioning rescue system.

Description

Technical Field

[0001] This utility model relates to the field of maritime emergency rescue technology, and more specifically, to a wearable terminal and positioning rescue system for ship crew positioning and rescue. Background Technology

[0002] Currently, the shipboard personnel positioning and overboard alarm devices or systems developed by naval equipment research institutions and equipment manufacturers have effectively protected the lives of personnel working at sea to a certain extent. Most of these solutions utilize GPS positioning and Bluetooth communication technologies in the lifesaving equipment worn by officers and sailors to achieve short-range transmission of personnel location information and enhance the self-rescue capabilities of those who fall overboard.

[0003] However, since ships typically have an average speed of 20-25 knots, and even higher speeds during combat or exercises, if a person falls overboard, a one-minute continuous voyage would exceed the range of Bluetooth communication, making it impossible to establish effective alarm communication or provide dynamic location information of the person in the water. Furthermore, GPS positioning technology also has issues such as failing to meet the military's requirements for information technology innovation, thus failing to guarantee the timeliness of maritime rescue for those who have fallen overboard. Utility Model Content

[0004] The purpose of this invention is to provide a wearable terminal and positioning and rescue system for ship crew members, which helps to solve the above-mentioned technical problems.

[0005] This utility model is implemented as follows:

[0006] A wearable terminal for naval crew positioning and rescue includes a main control unit and a first positioning module, a second positioning module, a communication module, and an acceleration sensing module electrically connected to the main control unit. The first positioning module is used for positioning calculation of the wearable terminal in the ship's cabin. The second positioning module is used for positioning calculation of the wearable terminal on the ship's deck and after it falls into the water. The communication module is used for data communication between the wearable terminal and the ship's gateway. The acceleration sensing module is used to determine whether the wearable terminal is in a falling state.

[0007] Furthermore, the first positioning module is a Bluetooth positioning module. Its technical advantages are as follows: thanks to the development of Bluetooth technology, a new indoor positioning framework based on Bluetooth RSSI power technology has been established. Calculations for indoor positioning using Bluetooth technology have become increasingly accurate and simple. Moreover, Bluetooth devices have low production costs, low installation and maintenance costs, low power consumption, and fast calculation response speed, currently achieving almost 1 meter of real-time indoor positioning accuracy.

[0008] Furthermore, the second positioning module is a BeiDou positioning module. Its technical advantages are: BeiDou positioning technology is becoming increasingly mature, with a wide communication range, strong connection capability, and continuous positioning and speed measurement functions, meeting the requirements of domestic information technology innovation and ensuring the continuity and accuracy of outdoor positioning for ship's crew.

[0009] Furthermore, the communication module is a LoRa communication module. Its technical advantage lies in the fact that the LoRa communication module belongs to a low-power local area network wireless communication standard. Its greatest feature is that it can propagate farther than other wireless methods under the same power consumption conditions, achieving a balance between low power consumption and long distance. This provides strong support for information communication in the event of shipboard personnel falling into the water.

[0010] Furthermore, an alarm button is also provided; the alarm button is electrically connected to the main control unit and is used by the crew to manually trigger the rescue alarm. The technical advantage is that the manual alarm button works in conjunction with the automatic acceleration sensing module, avoiding errors in mechanical calculations and enhancing the crew's confidence in receiving rescue after triggering the alarm themselves.

[0011] Furthermore, a vital signs detection module is also provided; this module is electrically connected to the main control unit and is used to measure the real-time physical health status of the crew members. Its technical advantage lies in the fact that commonly referred to vital signs include heart rate, pulse, blood pressure, respiration, pain, blood oxygenation, changes in pupil and corneal reflexes, etc. The vital signs detection module, designed specifically for crew member rescue in the water, primarily measures the crew members' heart rate, pulse, blood pressure, respiration, and blood oxygenation, providing medical rescue information for the rescue operation.

[0012] A positioning and rescue system includes a Bluetooth base station and the aforementioned wearable terminal for positioning and rescue of ship crew members; the Bluetooth base station is wirelessly connected to the first positioning module.

[0013] Furthermore, the positioning and rescue system is also equipped with a LoRa gateway; the LoRa gateway is wirelessly connected to the communication module. Its technical advantage lies in the fact that, with the LoRa gateway mounted on the ship's hull, it can provide real-time rescue communication information and issue control commands to ship management personnel.

[0014] Furthermore, the positioning and rescue system is also equipped with a BeiDou data transmission system; the BeiDou data transmission system is wirelessly connected to the second positioning module. Its technical advantage lies in the fact that the BeiDou data transmission system, located on the island superstructure, can pinpoint the location of crew members on the deck and after they fall into the water.

[0015] The positioning and rescue method of the wearable terminal and positioning and rescue system for the aforementioned crew member positioning and rescue includes: when the crew member is in the cabin, the first positioning module and Bluetooth base station continuously perform indoor positioning of the crew member; when the crew member is on the deck, the communication module sends the positioning information to the LoRa gateway; when the crew member falls into the water, the acceleration sensing module obtains the crew member's fall information and triggers the main control unit to send an alarm to the LoRa gateway through the communication module; after the crew member falls into the water, the second positioning module and satellite continuously perform outdoor positioning of the crew member and send data information to the LoRa gateway through the communication module.

[0016] Furthermore, when a crew member falls into the water, they can manually issue an alarm via an alarm button; the vital signs detection module continuously measures the crew member's vital signs and sends the results to the main control unit. The crew member's ability to proactively issue an alarm increases their confidence in self-rescue and being rescued, avoids losses caused by malfunctioning accelerometers, and the continuous measurement of vital signs provides rescuers with a basis for medical assistance.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] The wearable terminal and positioning and rescue system for ship crew members combine two complementary positioning technologies and communication modules for positioning and rescue. It uses an accelerometer to obtain real-time information on crew members falling into the water, ensuring effective alarm communication and providing timely dynamic location information of those who have fallen into the water. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 An exploded view of the wearable terminal for positioning and rescue of ship crew members provided by this utility model;

[0021] Figure 2 A flowchart of the positioning and rescue method of the positioning and rescue system provided by this utility model.

[0022] Icons: 1-Step 1; 2-Step 2; 3-Step 3; 4-Step 4; 100-Main control unit; 200-First positioning module; 300-Second positioning module; 400-Communication module; 500-Acceleration sensing module; 600-Alarm button. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model, typically described and labeled in the accompanying drawings, can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0030] Figure 1 An exploded view of the structure of the wearable terminal for shipboard crew positioning and rescue provided by this utility model, as shown below. Figure 1 As shown, this embodiment provides a wearable terminal for shipboard crew positioning and rescue, including a main control unit 100 and a first positioning module 200, a second positioning module 300, a communication module 400 and an acceleration sensing module 500 electrically connected to the main control unit 100.

[0031] The first positioning module 200 is used for positioning calculation of the wearable terminal in the cabin of the ship; the second positioning module 300 is used for positioning calculation of the wearable terminal on the deck of the ship and after it falls into the water; the communication module 400 is used for data communication between the wearable terminal and the ship's gateway; and the acceleration sensing module 500 is used to determine whether the wearable terminal is in a falling state.

[0032] In the optional solutions of the above embodiments, such as Figure 1 As shown, the first positioning module 200 is further a Bluetooth positioning module. In this embodiment, thanks to the development of Bluetooth technology, a new indoor positioning framework based on Bluetooth RSSI power technology has been established. Calculations for indoor positioning using Bluetooth technology have become increasingly accurate and simple. Furthermore, Bluetooth devices are inexpensive to produce, install, and maintain, consume little power, and have a fast response time, currently achieving an indoor real-time positioning accuracy of almost 1 meter.

[0033] Specifically, an nRF52840 chip module is installed inside the wearable terminal used for crew positioning and rescue. This chip module continuously broadcasts its own signal via Bluetooth and receives signals from other modules. The broadcast signal strength data is wirelessly transmitted to the central controller. After collecting the signal strength data from all modules, the central controller calculates the target location using a triangulation algorithm. By comparing the signal strength differences between different modules and their relative positional relationships, the coordinates of the target location can be determined. Finally, the calculated target location information is fed back to the user, realizing indoor positioning functionality.

[0034] In the optional solutions of the above embodiments, such as Figure 1 As shown, the second positioning module 300 is further a BeiDou positioning module. In this embodiment, BeiDou positioning technology is becoming increasingly mature, with a wide communication range, strong connection capability, and continuous positioning and speed measurement functions. It can meet the requirements of domestic information technology innovation and ensure the continuity and accuracy of outdoor positioning for ship crew members.

[0035] Specifically, the AT6558R chip module, which incorporates a BeiDou RNSS receiver, is integrated into the wearable terminal used for crew positioning and rescue. The parameters of the AT6558R chip module, including the receiving frequency and navigation message format, are configured according to positioning requirements. During positioning, the AT6558R chip module receives navigation signals transmitted by BeiDou satellites and calculates the device's location information using signal processing algorithms. The positioning results can be transmitted to the ship's LoRa gateway via LoRa to achieve the positioning function.

[0036] There are two types of satellite radio services used for positioning. One is Radio Navigation Satellite System (RNSS), where users receive satellite radio navigation signals and autonomously measure distances to at least four satellites, calculating user position, speed, and navigation parameters. The other is Radio Determination Satellite Service (RDSS). Distance measurement and position calculation between the user and satellites cannot be completed independently by the user; it must be done by an external system through the user's response. Its characteristic is that, through user responses, positioning is completed simultaneously with reporting the user's position to the external system, enabling integration of positioning and communication, and achieving NAVCOMM integration within the same system.

[0037] In the optional solutions of the above embodiments, such as Figure 1 As shown, the communication module 400 is further described as a LoRa communication module. In this embodiment, the LoRa communication module belongs to the low-power local area network wireless communication standard. Its biggest feature is that it can propagate farther than other wireless methods under the same power consumption conditions, achieving a balance between low power consumption and long distance. This provides strong support for information communication in the event of shipboard personnel falling into the water.

[0038] Specifically, the ASR6601 chip module is integrated into the wearable terminal used for crew positioning and rescue. This module has built-in LoRa communication parameters, including frequency, bandwidth, and spreading factor. During communication, the ASR6601 chip module communicates with other devices via LoRa technology, enabling bidirectional data transmission. Adaptive Data Rate (ADR) and other technologies can be used to optimize communication quality and power consumption during communication.

[0039] In the optional solutions of the above embodiments, such as Figure 1As shown, an alarm button 600 is further provided; the alarm button 600 is electrically connected to the main control unit 100 and is used by the crew to manually trigger the rescue alarm. In this embodiment, the manual alarm button 600 and the automatic acceleration sensing module 500 work together to avoid errors in mechanical calculations and enhance the confidence of the crew in receiving rescue after triggering the alarm themselves.

[0040] The acceleration sensing module 500, corresponding to the manual alarm button 600, integrates the ADXL345 sensor module into the wearable terminal for crew positioning and rescue. The sensor module's sensitivity and sampling rate are configured to adapt to different application scenarios. During drop detection, the ADXL345 sensor module collects the object's acceleration data in real time and transmits it to the processing unit via an interface. The processing unit processes and analyzes the received data according to a preset drop detection algorithm to determine whether a drop event has occurred. If a drop event occurs, the main control unit 100 can trigger an alarm, record data, or take other corresponding measures.

[0041] In the optional solutions of the above embodiments, such as Figure 1 As shown, the wearable terminal for crew positioning and rescue is further equipped with a vital signs detection module. This module is electrically connected to the main control unit 100 and is used to measure the crew's real-time health status. In this embodiment, commonly referred to vital signs include heart rate, pulse, blood pressure, respiration, pain, blood oxygenation, changes in pupil and corneal reflexes, etc. The vital signs detection module, designed for crew members falling into the water, primarily measures the crew's heart rate, pulse, blood pressure, respiration, and blood oxygenation, providing medical rescue information.

[0042] Specifically, a GH3018 sensor module is integrated into the wearable terminal used for crew positioning and rescue. The sensor module's parameters, including sampling frequency and testing mode, are configured. During vital sign testing, the GH3018 sensor module collects real-time physiological signal data from the user, such as heart rate and blood oxygen saturation, and transmits this data to the processing unit via an interface. The processing unit processes and analyzes the received data according to a preset algorithm to derive the user's vital sign test results.

[0043] A positioning and rescue system includes a Bluetooth base station and a wearable terminal for positioning and rescue of ship's crew; the Bluetooth base station is wirelessly connected to a first positioning module. In this embodiment, the Bluetooth base station is installed inside the cabin and is capable of locating the position of the crew members inside the cabin.

[0044] In an optional embodiment described above, the positioning and rescue system further includes a LoRa gateway; the LoRa gateway is wirelessly connected to the communication module. In this implementation, the LoRa gateway is mounted on the ship's hull and can provide real-time rescue communication information and issue control commands to ship management personnel.

[0045] In an optional embodiment described above, the positioning and rescue system is further equipped with a BeiDou data transmitter; the BeiDou data transmitter is radioly connected to the second positioning module. In this implementation, the BeiDou data transmitter is located on the island superstructure and is capable of locating the crew members' positions on the deck and after they fall into the water.

[0046] Figure 2 A flowchart illustrating the positioning and rescue method of the positioning and rescue system provided by this utility model. Figure 2 As shown, the positioning and rescue method using a wearable terminal and positioning and rescue system for ship crew includes: when the crew member is in the cabin, the first positioning module 200 and the Bluetooth base station continuously perform indoor positioning of the crew member; when the crew member is on the deck, the communication module 400 sends the positioning information to the LoRa gateway; when the crew member falls into the water, the acceleration sensor module 500 obtains the crew member's fall information and triggers the main control unit 100 to send an alarm to the LoRa gateway through the communication module 400; after the crew member falls into the water, the second positioning module 300 and the satellite continuously perform outdoor positioning of the crew member and send data information to the LoRa gateway through the communication module 400.

[0047] Furthermore, when a crew member falls into the water, they can manually issue an alarm via alarm button 600; the vital signs detection module continuously measures the crew member's vital signs and sends the results to the main control unit 100. The crew member's ability to proactively issue an alarm increases their confidence in self-rescue and being rescued, avoids losses caused by malfunctioning acceleration sensors, and the continuous measurement of vital signs provides rescuers with a basis for medical assistance.

[0048] In summary, the wearable terminal for crew positioning and rescue mainly includes indoor positioning, outdoor positioning, maritime communication, vital sign detection, fall detection, and basic display interface functions. Its working logic is as follows—

[0049] Status ① (crew members are inside the compartment):

[0050] When crew members are moving around inside the cabin, the indoor positioning function, i.e., the first positioning module 200, is activated. The Bluetooth RSSI positioning tag in the terminal is active, transmitting signals to the indoor Bluetooth base station at a frequency of 10 seconds per transmission. Simultaneously, the accelerometer module 500 is active, detecting crew members' fall status in low-power mode. Other functional modules remain in sleep mode.

[0051] Status ② (crew members are on deck):

[0052] When the crew is on deck, the outdoor power detection function is activated, and the LoRa communication module 400 and satellite positioning module in the terminal are in heartbeat mode, transmitting signals to the shipboard gateway and Beidou satellite GNSS at a heartbeat cycle of 1 hour.

[0053] Status ③ (when a crew member falls into the water):

[0054] In the event of a crew member falling overboard, the crew member can manually trigger the main control chip via the alarm button 600 on the terminal. Simultaneously, the acceleration sensor module 500 can automatically trigger the main control unit 100 through high-precision fall detection, activating the overboard rescue circuit in a dual-safety mode (manual / automatic). The LoRa communication module 400 in the terminal immediately sends an alarm to the ship's gateway regarding the overboard incident. At the same time, the satellite positioning module in the terminal enters a hot-start mode, awaiting outdoor positioning.

[0055] Status 4 (after crew member falls into the water):

[0056] When a crew member falls into the water and floats, the satellite positioning module and LoRa communication module 400 in the terminal continuously replenish the positioning information at a frequency of 5 seconds and package the location information to complete the alarm.

[0057] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A wearable terminal for positioning and rescue of a crew member, characterized by comprising: a wearable device 1; a sensor 2; a communication device 3; a power supply 4; and a controller 5. The system comprises a main control unit (100) and a first positioning module (200), a second positioning module (300), a communication module (400) and an acceleration sensing module (500) electrically connected with the main control unit (100); The first positioning module (200) is used for positioning calculation of the wearable terminal in the cabin of the ship; the second positioning module (300) is used for positioning calculation of the wearable terminal on the deck of the ship and after falling into the water; the communication module (400) is used for data communication between the wearable terminal and the shipboard gateway; and the acceleration sensing module (500) is used for determining whether the wearable terminal is in a falling state.

2. The sailor positioning and rescue wearable terminal according to claim 1, wherein The first positioning module (200) is a Bluetooth positioning module.

3. The sailor positioning and rescue wearable terminal according to claim 1, wherein The second positioning module (300) is a Beidou positioning module.

4. The sailor positioning and rescue wearable terminal according to claim 1, wherein The communication module (400) is a LoRa communication module (400).

5. The sailor positioning and rescue wearable terminal according to claim 1, wherein An alarm button (600) is further arranged; the alarm button (600) is electrically connected with the main control unit (100) and is used for manually triggering a rescue alarm by the crew member.

6. The sailor positioning and rescue wearable terminal according to claim 1, wherein A vital sign detection module is further arranged; the vital sign detection module is electrically connected with the main control unit (100) and is used for measuring the instant physical health condition of the crew member.

7. A positioning rescue system, characterized by The system comprises a Bluetooth base station and the wearable terminal for positioning and rescue of the crew member according to any one of claims 1-6; the Bluetooth base station is wirelessly electrically connected with the first positioning module (200).

8. The positioning rescue system according to claim 7, characterized in that The positioning and rescue system further comprises a LoRa gateway; the LoRa gateway is wirelessly electrically connected with the communication module (400).

9. The positioning rescue system according to claim 7, characterized in that, The positioning and rescue system further comprises a Beidou data transmitter; the Beidou data transmitter is wirelessly electrically connected with the second positioning module (300).

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