Accurately put life buoy and control method

By combining a headset controller and a main controller, and utilizing electronic gyroscopes and voice recognition technology, the lifebuoy can be autonomously flown and accurately deployed under the operator's natural language control. This solves the inconvenience and inaccuracy problems in long-distance rescue and improves rescue efficiency.

CN121019801APending Publication Date: 2025-11-28ZHEJIANG NORMAL UNIV
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Patent Information

Application Number
CN202511349920.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-22
Publication Date
2025-11-28

AI Technical Summary

Technical Problem

Existing throwable lifebuoys are difficult to use for precise rescues in long distances and in windy, wavy waters, while drone-deployment solutions present operational complexity and management challenges.

Method used

Using a combination of headset controller and main controller, the lifebuoy is controlled by the operator's natural language and gestures. It utilizes an electronic gyroscope and radio transceiver module to achieve precise deployment. Combined with voice recognition and heading adjustment, it enables the lifebuoy to fly autonomously and land precisely.

Benefits of technology

It enables long-distance, precise delivery of lifebuoys without human intervention, reducing inconvenience and inaccuracy during rescue operations and improving rescue efficiency.

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Abstract

The invention belongs to the field of water rescue equipment, and particularly relates to a precisely-put life buoy and a control method.The precisely-put life buoy comprises a life buoy body, a connecting edge, a rotor wing, a body controller, a wire groove, a power source and a headset controller, the rotor wing and the life buoy body are combined into a whole through the connecting edge, the rotor wing comprises a motor and blades, and the power source, the wire groove and the body controller are installed on the connecting edge; a headset controller is further installed on the connecting edge, located on the side face of the rotor wing and electrically connected with the main body controller through a wire and a pair of switch contacts. After an operator wears the headset controller, body rotation actions and voice commands are converted into rescue directions through the electronic gyroscope and the voice recognition module respectively, the rescue directions are sent to the main body controller through radio, and the life buoy is controlled to fly so as to realize accurate launching. Flight control over the life buoy is achieved through natural actions and languages of an operator, physical throwing or complex operation skills are not needed, long-distance accurate throwing of the life buoy can be achieved, and high efficiency of water area rescue is achieved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the field of water rescue equipment, in particular to a precise throwing life buoy and control method. BACKGROUND

[0002] The common life-saving equipment in water area at present is mainly throwing life buoy, which is applied to small water area where manpower can throw. In addition, the accurate factor of manpower throwing limits the actual efficacy of throwing life buoy. In water area with wind and wave, throwing life buoy is difficult to play a role in rescue.

[0003] For long-distance swimmer or islander rescue, the unmanned aerial vehicle can also be used to carry life buoy for long-distance throwing, but the management and remote control operation of unmanned aerial vehicle are difficult to solve the practical problems.

[0004] In recent years, with the wide application of unmanned aerial vehicle, the solution of unmanned aerial vehicle throwing life buoy has also been produced. This solution is a simple combination of unmanned aerial vehicle and life buoy, and there are many problems such as management and operation technology of unmanned aerial vehicle in practical application. SUMMARY

[0005] The purpose of the present application is to solve the problems in the prior art, and a precise throwing life buoy and control method is provided, which realizes the precise throwing of life buoy at a long distance by using the naturalness of the operator's language and action.

[0006] In order to achieve the above purpose, the present application adopts the following technical scheme: A precise throwing life buoy, comprising a life buoy main body, a rotor, a connecting edge, a headset controller, a main body controller, a power supply, a wire slot and a switch contact, the connecting edge connects the rotor and the life buoy main body into one, and the connecting edge is provided with the main body controller, the headset controller, the power supply and the wire slot, the headset controller is electrically connected with the main body controller through a pair of switch contacts and wires, the rotor comprises a motor and a blade, and the power supply is connected with the main body controller and the motor through wires in the wire slot.

[0007] Further, the switch contact is a mechanical device of the headset controller and the main body controller, and the potential on the contact point is fed back to the headset controller and the main body controller respectively as a basis for judging whether the two are separated or not.

[0008] Further, the main body controller comprises a single-chip microcomputer, an electronic gyroscope, a radio transceiver module, an antenna, a driving module and a switch contact, the electronic gyroscope is electrically connected with the single-chip microcomputer, the radio transceiver module is electrically connected with the single-chip microcomputer and the antenna, the switch contact is electrically connected with the single-chip microcomputer and mechanically connected with the headset controller, and the driving module is electrically connected with the single-chip microcomputer and the motor.

[0009] Furthermore, the headset controller consists of a microcontroller, an electronic gyroscope, a radio transceiver module, an antenna, switch contacts, a headset, and a voice recognition module. The headset includes a microphone and earphones. Among them, the electronic gyroscope is electrically connected to the microcontroller, the radio transceiver module is electrically connected to the microcontroller and the antenna, the earphone is electrically connected to the microcontroller, the voice recognition module is electrically connected to the microphone and the microcontroller, the switch contacts are electrically connected to the microcontroller, and are mechanically connected to the main controller.

[0010] Furthermore, the headset controller is mounted on the connection edge, surrounding the rotor, and is powered independently. The headset controller makes contact with the main controller's contacts through contacts, forming a complete contact electrical signal loop. Contact sig1 on the main controller's circuit feeds back a low-level signal to the main controller, while contact sig2 on the headset controller's circuit feeds back a low-level signal to the headset controller. After the headset controller is removed from the connection edge, the contacts separate, the contact electrical signal loop is broken, and sig1 and sig2 feed back high-level signals to the main controller and headset controller respectively, to determine whether the two are in a connected or disconnected state.

[0011] Furthermore, before the headset controller is separated from the connector, the headset controller sends the orientation information of its own electronic gyroscope to the main controller through the antenna via the radio transceiver module until the main controller sends back the calibration completion instruction, and then enters the standby state. After the headset controller is separated from the connector, while the operator is wearing the headset, the electronic gyroscope in the headset controller continuously changes its orientation. When the operator's gaze is focused on the person falling into the water, the orientation information of the electronic gyroscope remains essentially unchanged. Simultaneously, the microcontroller transmits the orientation information to the main controller via the radio transceiver module and antenna until it receives a command from the main controller indicating that the orientation adjustment is complete. Then, it issues voice guidance to the operator through the headset. Following the prompts, the operator issues voice commands through the microphone and voice recognition chip. After receiving the voice control commands from the voice recognition module, the headset controller sends relevant commands to the main controller via the radio transceiver module and antenna. When the operator issues the command "land," the radio transceiver module transmits the command, and the headset controller terminates the control process.

[0012] Furthermore, the main controller is in the preparation stage before the headset controller is separated, and is constantly receiving the orientation information from the headset controller. After receiving the orientation information from the headset controller, it compares it with the orientation information from its own electronic gyroscope, stores the orientation difference between the two as the basis for subsequent adjustments to the flight course, and sends the calibration completion information to the headset controller through the radio transceiver module and antenna, and then enters standby mode.

[0013] Furthermore, after the headset controller separates, the main controller enters the flight control phase of the lifebuoy. First, by detecting the status of the switch contacts to confirm that the headset controller has separated, it autonomously controls the rotor to rotate, raising the lifebuoy to hover in the air and receiving the orientation information sent by the headset controller. Combining the orientation difference between the main controller and the headset controller during the standby phase, it calculates the basic orientation of the person in the water, adjusts the course, and sends the received orientation information to the headset controller. Then, it receives voice commands from the headset controller and adjusts the rotor to fly towards the target according to the commands until it receives a landing voice command. Then, it hovers with the lifebuoy and lands on the person in the water, completing the long-distance water rescue mission or the rescue mission for people trapped on an isolated island.

[0014] Furthermore, the main controller can fuzzify the voice commands issued by the headset controller to obtain specific flight control values. "Forward" or "backward" is represented as rapid forward or backward flight; "a little forward" or "a little backward" is represented as slow forward or backward flight; "left" or "right" is represented as adjusting the heading angle to the left or right by 10° from the current heading; "a little left" or "a little right" is represented as adjusting the heading angle to the left or right by 3° from the current heading; "up" or "down" is represented as adjusting the altitude by 0.5 meters; "stop" is represented as hovering in place; and "land" is represented as removing the rotor power in place and allowing the lifebuoy to land automatically.

[0015] The beneficial effects of this invention are: 1. The initial heading of the lifebuoy of the present invention is determined autonomously by the position difference between the electronic gyroscope in the main controller and the electronic gyroscope in the headset controller, as well as the position provided by the electronic gyroscope after the operator wears the headset controller, without human intervention. 2. The lifebuoy of this invention uses the operator's natural language and actions to achieve flight control, without the need for physical throwing or complex operating skills.

[0016] 3. The lifebuoy of this invention can be accurately delivered over long distances, greatly reducing the inconvenience and inaccuracy in actual rescue processes and improving the efficiency of rescue. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the voice-controlled lifebuoy of the present invention; Figure 2 This is a schematic diagram of the main structure of the voice-controlled lifebuoy of the present invention; Figure 3 This is a schematic diagram of the contact signal circuit for the main controller and the headset controller.

[0018] Figure 4 This is a schematic diagram illustrating the composition of the main controller of the present invention; Figure 5 This is a schematic diagram of the components of the headset controller of the present invention; Figure 6 This is a schematic diagram of the structure of the headset controller of the present invention; Figure 7 This is a flowchart illustrating the control process of the headset controller before separation from the lifebuoy in this invention. Figure 8 This is a flowchart illustrating the control process after the headset controller is separated from the lifebuoy in this invention. Figure 9 This is a flowchart of the main controller before the headset controller is separated according to the present invention; Figure 10 This is a flowchart of the main controller after the headset controller of the present invention is separated; Figure Descriptions: 1-Lifebuoy Body; 2-Rotor; 201-Motor; 202-Blade; 3-Power Supply; 4-Wire Channel; 5-Earphone Controller; 501-Microcontroller; 502-Radio Transceiver Module; 503-Antenna; 504-Electronic Gyroscope; 505-Earphone; 506-Pickup Unit; 507-Voice Recognition Module; 6-Main Controller; 601-Microcontroller; 602-Radio Transceiver Module; 603-Antenna; 604-Electronic Gyroscope; 605-Drive Module; 7-Connecting Edge; 8-Switch Contact. Detailed Implementation

[0019] The present application will be further described in detail below with reference to the accompanying drawings.

[0020] like Figures 1-2 As shown, a precise life ring deployment method includes a life ring body 1, a rotor 2, a power supply 3, a cable trough 4, an earpiece controller 5, a main controller 6, a connecting edge 7, and switch contacts 8. The rotor 2, power supply 3, cable trough 4, main controller 6, and earpiece controller 5 are installed on the connecting edge 7. The earpiece controller 5 is electrically connected to the main controller 6 through wires and a pair of switch contacts 8. The rotor 2 includes a motor 201 and blades 202. The power supply 3 is connected to the main controller 6 and the motor 201 through wires in the cable trough 4. The lifebuoy body 1, located at the center, is a hollow, ring-shaped rotating body that provides buoyancy to support a person falling into the water. Protruding rotors 2 are evenly distributed around the lifebuoy body 1 to house motors 201 and blades 202. Motors 201, commonly used DC motors, are installed on the protruding parts around the lifebuoy body 1 and are electrically connected to the power supply 3 and the main controller 6 via cable trays 4. The rotors 2 are mounted on the shaft ends of motors 201 and are driven to rotate by motors 201, providing the necessary lift for the lifebuoy's flight. The power supply 3 is located on the side of the lifebuoy body 1 to provide electricity. The cable trays 4 are... The headset controller 5 is placed on the outer periphery of the lifebuoy body 1, providing channels and protection for various electrical connections. It is placed on the connecting edge 7 around the rotor 2, powered independently, and electrically connected to the main controller 6 through a pair of switch contacts 8. The main controller 6 is arranged on the connecting edge 7, opposite to the power supply 3, which helps to maintain the overall balance of the lifebuoy. The switch contacts 8 are not shown in the figure. They are mechanical devices of the headset controller 5 and the main controller 6. Through the circuit arrangement, they provide the headset controller 5 and the main controller 6 with different potential levels, which serve as the physical basis for determining whether the two are separated.

[0021] like Figure 3 As shown, the left side of the contact signal circuit is part of the main controller 6 circuit, and the right side is part of the headset controller 5 circuit. When the headset controller 5 is not removed, the corresponding contacts are in contact, forming a complete contact signal circuit. Contact sig1 on the circuit of the main controller 5 feeds a low-level signal to the main controller 6, and contact sig2 on the circuit of the headset controller 6 feeds a low-level signal to the headset controller 5. When the headset controller 5 is removed, the contacts separate, the contact signal circuit is broken, and sig1 and sig2 feed a high-level signal to the main controller 6 and the headset controller 5 respectively. That is, the main controller 6 and the headset controller 5 can determine whether they are in a connected or disconnected state by detecting the potential at the contact points.

[0022] like Figure 4 As shown, the main controller 6 consists of a microcontroller 601, an electronic gyroscope 604, a radio transceiver module 602, an antenna 603, a switch contact 8, and a drive module 605. The electronic gyroscope 604 is electrically connected to the microcontroller 601, the radio transceiver module 602 is electrically connected to the microcontroller 601 and the antenna 603, the switch contact 8 is electrically connected to the microcontroller 601 and mechanically connected to the headset controller 5, and the drive module 605 is electrically connected to the microcontroller 601 and the motor 201.

[0023] like Figure 5 and Figure 6As shown, the headset controller 5 consists of a microcontroller 501, an electronic gyroscope 504, a radio transceiver module 502, an antenna 503, a switch contact 8, a headset (including a microphone 506 and an earphone 505), and a voice recognition module 507. The electronic gyroscope 504 is electrically connected to the microcontroller 501, the radio transceiver module 502 is electrically connected to the microcontroller 501 and the antenna 503, the earphone 505 is electrically connected to the microcontroller 501, the voice recognition module 507 is electrically connected to the microphone 506 and the microcontroller 501, and the switch contact 8 is electrically connected to the microcontroller 501 and mechanically connected to the main controller 6.

[0024] like Figure 7 As shown, before the headset controller 5 separates from the main controller 6 via the disconnection edge 7, it is in the preparation stage according to the procedure shown. After power-on, the headset controller 5 first determines whether it is separated from the main controller 6 by detecting the potential of the switch contact 8; before confirming that it is not separated, the headset controller 5 sends the orientation information of its own electronic gyroscope 504 to the main controller 6 through the antenna 503 via the radio transceiver module 502, until the main controller 6 sends back the calibration completion instruction, and then enters the standby state.

[0025] After the headset controller 5 is separated from the main controller 6, press Figure 8 The process is as shown. While the operator is wearing the headset, the electronic gyroscope 504 in the headset controller 5 continuously changes its orientation information. Ultimately, when the operator's gaze is fixed on the person in the water, the orientation information of the electronic gyroscope 504 remains essentially unchanged. Simultaneously, the microcontroller 501 transmits the orientation information to the main controller 6 via the radio transceiver module 502 and antenna 503. This continues until the main controller 6 receives an instruction that the orientation adjustment is complete. Then, voice guidance is given to the operator via the headset 505, such as "look at the person in the water," "forward," "left," "right," and "land." Following the prompts, the operator issues voice commands via the microphone 506 and voice recognition module 507. After receiving the voice control commands from the voice recognition module 507, the headset controller 5 sends the relevant commands to the main controller 6 via the radio transceiver module 502 and antenna 503. After the operator issues the command "land," the radio transceiver module transmits the command, and the headset controller 5 terminates the control process.

[0026] The main controller 6 is pressed before the headset controller 5 is separated. Figure 9 The process is in the preparation stage, continuously receiving orientation information from the headset controller 5. After receiving the orientation information from the headset controller 5, it compares it with the orientation information from its own electronic gyroscope 604, stores the orientation difference between the two as the basis for subsequent adjustments to the flight course, and sends a calibration completion message to the headset controller 5 through the radio transceiver module 602 and the antenna 603, and then enters standby mode.

[0027] The main controller 6 is pressed after the headset controller 5 is separated. Figure 10 The process involves controlling the lifebuoy's flight. First, by detecting the potential of switch contact 8, it confirms that the headset controller 5 has separated. Then, it autonomously controls the rotor 2 to rotate, lifting the lifebuoy into the air and hovering it. It receives the orientation information sent by the headset controller 5. Combining the orientation difference between the electronic gyroscope 604 on the main controller 6 and the electronic gyroscope 504 on the headset controller 5 during the standby phase, it calculates the basic orientation of the person in the water and adjusts the course. It also sends the received orientation information to the headset controller 5. Then, it receives voice commands from the headset controller 5 and adjusts the rotor 2 to control the lifebuoy to fly towards the target according to the commands. After receiving the landing voice command, the lifebuoy hovers and lands on the person in the water, completing the rescue mission in the water or on a trapped island.

[0028] The main controller 6 can fuzzify the voice commands issued by the headset controller 5 to obtain specific flight control values. "Forward" or "backward" is represented as fast forward or backward flight; "a little forward" or "a little backward" is represented as slow forward or backward flight; "left" or "right" is represented as adjusting the heading angle to the left or right by 10º from the current heading; "a little left" or "a little right" is represented as adjusting the heading angle to the left or right by 3º from the current heading; "up" or "down" is represented as adjusting the altitude by 0.5 meters; "stop" is represented as hovering in place; and "land" is represented as removing the power of the rotor 2 in place and allowing the lifebuoy to land automatically.

[0029] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. All equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A precision-deployed lifebuoy, comprising a lifebuoy body, a connecting edge, a rotor, a main controller, a cable tray, a power supply, an earpiece controller, and switch contacts, wherein the connecting edge is equipped with the power supply, the main controller, the earpiece controller, the cable tray, and the rotor, the rotor comprising a motor and blades, the power supply being connected to the main controller and the motor via wires within the cable tray, the cable tray encompassing the physically connected wires, characterized in that: The rotor includes a motor and blades, and is integrated with the main body of the lifebuoy via connecting edges; The headset controller surrounds the side of the rotor, is mounted on the connecting edge, is powered independently, and is electrically connected to the main controller via wires and a pair of switch contacts.

2. The precise deployment of a lifebuoy according to claim 1, characterized in that: The switch contacts are mechanical devices of the headset controller and the main controller, and the potential of the switch contacts provides signals to the headset controller and the main controller respectively to indicate whether they are separated or not.

3. The precise deployment of a lifebuoy according to claim 1, characterized in that: The main controller consists of a microcontroller, an electronic gyroscope, a radio transceiver module, an antenna, switch contacts, and a drive module. The electronic gyroscope is electrically connected to the microcontroller, the radio transceiver module is electrically connected to the microcontroller and the antenna, the switch contacts are electrically connected to the microcontroller and mechanically connected to the headset controller, and the drive module is electrically connected to the microcontroller and the motor.

4. The precise deployment of a lifebuoy according to claim 1, characterized in that: The headset controller consists of a microcontroller, an electronic gyroscope, a radio transceiver module, an antenna, switch contacts, a headset, and a voice recognition module. The headset includes a microphone and earphones. Among them, the electronic gyroscope is electrically connected to the microcontroller, the radio transceiver module is electrically connected to the microcontroller and the antenna, the earphone is electrically connected to the microcontroller, the voice recognition module is electrically connected to the microphone and the microcontroller, the switch contacts are electrically connected to the microcontroller, and are mechanically connected to the main controller.

5. The precise deployment of a lifebuoy according to claim 2, characterized in that: When the headset controller is installed on the connector, it contacts the main controller's switch contacts through switch contacts, forming a complete contact electrical signal loop. The contacts on the main controller's circuitry feed back a low-level signal to the main controller, and the contacts on the headset controller's circuitry feed back a low-level signal to the headset controller. After the headset controller is removed from the connector, the switch contacts separate, the contact electrical signal loop is broken, and the contacts on the main controller's circuitry and the headset controller's circuitry feed back high-level signals to the main controller and headset controller, respectively. The high and low level signals of the switch contacts determine whether the two are in an engaged or disengaged state.

6. A control method for precisely deploying a lifebuoy according to any one of claims 1-5, characterized in that: Before the headset controller is separated from the main controller, the headset controller sends the orientation information of its own electronic gyroscope to the main controller through the antenna via the radio transceiver module until the main controller sends back the calibration completion instruction, and then enters the standby state. After the headset controller is separated from the main controller, while the operator is wearing the headset, the electronic gyroscope in the headset controller continuously changes its position. Ultimately, when the operator's gaze falls on the person in the water, the gyroscope's position information remains essentially unchanged. The headset controller transmits this position information to the main controller via a radio transceiver module and antenna until it receives a position adjustment command from the main controller. Then, it issues voice guidance to the operator through the headset. Following the prompts, the operator issues voice commands through the microphone and voice recognition chip. After receiving the voice control commands from the voice recognition module, the headset controller sends relevant commands to the main controller via the radio transceiver module and antenna. When the operator issues the command "land," the radio transceiver module transmits the command, and the headset controller correctly receives it and terminates the control process.

7. The control method for precisely deploying a lifebuoy according to claim 6, characterized in that: Before separating from the headset controller, the main controller is in a preparation stage. After receiving the orientation information sent by the headset controller, it compares it with the orientation information of its own electronic gyroscope, stores the orientation difference between the two as the basis for subsequent adjustment of flight course, and sends the calibration completion information to the headset controller through the radio transceiver module and antenna, and then enters the standby state.

8. The control method for accurately deploying a lifebuoy according to claim 7, characterized in that: After separating from the headset controller, the main controller enters the flight control phase of the lifebuoy. First, by detecting the state of the switch contacts to confirm that the headset controller has been separated, it autonomously controls the rotor to rotate, raising the lifebuoy to hover in the air. It then receives the orientation information sent by the headset controller and, combined with the orientation difference between the electronic gyroscopes on the main controller and headset controller during the standby phase, calculates the basic orientation of the person in the water and adjusts the course accordingly. It also sends the received orientation information to the headset controller and then receives voice commands from the headset controller. Based on the commands, it adjusts the rotor to fly towards the target until it receives a landing voice command. After hovering, the lifebuoy lands on the person in the water, completing the long-distance, precise water delivery mission.

9. The control method for precisely deploying a lifebuoy according to claim 6, characterized in that: The main controller can fuzzify the voice commands issued by the headset controller to obtain specific flight control values. "Forward" or "backward" is represented as fast forward or backward flight; "a little forward" or "a little backward" is represented as slow forward or backward flight; "left" or "right" is represented as adjusting the heading angle to the left or right by 10° from the current heading; "a little left" or "a little right" is represented as adjusting the heading angle to the left or right by 3° from the current heading; "up" or "down" is represented as adjusting the altitude by 0.5 meters; "stop" is represented as hovering in place; and "land" is represented as removing the rotor power in place and allowing the lifebuoy to land automatically.