WO2018218940A1 - 跟随式救生设备 - Google Patents

跟随式救生设备 Download PDF

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Publication number
WO2018218940A1
WO2018218940A1 PCT/CN2017/117898 CN2017117898W WO2018218940A1 WO 2018218940 A1 WO2018218940 A1 WO 2018218940A1 CN 2017117898 W CN2017117898 W CN 2017117898W WO 2018218940 A1 WO2018218940 A1 WO 2018218940A1
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WO
WIPO (PCT)
Prior art keywords
lifesaving
wearable device
follow
life saving
distance
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PCT/CN2017/117898
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English (en)
French (fr)
Inventor
杜国泽
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杜国泽
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Application filed by 杜国泽 filed Critical 杜国泽
Publication of WO2018218940A1 publication Critical patent/WO2018218940A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C9/00—Life-saving in water
    • B63C9/08—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C9/00—Life-saving in water
    • B63C9/08—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like
    • B63C9/087—Body suits, i.e. substantially covering the user's body ; Immersion suits, i.e. substantially completely covering the user
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C9/00—Life-saving in water
    • B63C9/08—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like
    • B63C9/13—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like attachable to body member, e.g. arm, neck, head or waist
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
    • G05D1/02—Control of position or course in two dimensions
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/08—Alarms for ensuring the safety of persons responsive to the presence of persons in a body of water, e.g. a swimming pool; responsive to an abnormal condition of a body of water
    • G08B21/088—Alarms for ensuring the safety of persons responsive to the presence of persons in a body of water, e.g. a swimming pool; responsive to an abnormal condition of a body of water by monitoring a device worn by the person, e.g. a bracelet attached to the swimmer

Definitions

  • Embodiments of the present disclosure generally relate to rescue equipment and, more particularly, to a follow-up rescue apparatus.
  • swimming is a common form of exercise, and people can swim in swimming pools, rivers, rivers, lakes, seas or reservoirs.
  • the swimmer encounters physical exhaustion or other accidents, there is a high possibility of a drowning accident.
  • the swimmer is most likely to die from drowning.
  • the nearby people do not dare to go into the water to save people.
  • the swimmer is in the instinct of survival in the case of drowning, he will certainly grab or hug the rescue. People. In this way, if the rescuer is not well-watered or physically weak, it will often lead to the rescuer being in danger.
  • the rescuer can throw the lifebuoy toward the swimmer.
  • a follow-up lifesaving device is provided in accordance with an embodiment of the present disclosure.
  • the following lifesaving device includes: a wearable device that can be worn on a human body; a living device body, the life saving device body being separate from the wearable device, and the life saving device body comprising: a life saving device, the life saving device floating on the water; and a pushing device coupled to the The life saving device is configured to drive the lifesaving device to follow the movement of the wearable device in accordance with a distance between the life saving device and the wearable device.
  • the pushing device is further configured to drive the life saving device to move at a first speed in response to the distance between the life saving device and the wearable device being less than a first threshold, such that The lifesaving device follows the movement of the wearable device.
  • the pushing device is further configured to drive the life saving device toward the second speed in response to the distance between the life saving device and the wearable device being greater than the first threshold
  • the wearable device moves to adjust a distance between the lifesaving device and the wearable device to be less than the first threshold.
  • the pushing device is further configured to stop driving the lifesaving device or to drive the lifesaving device in response to the distance between the lifesaving device and the wearable device reaching a second threshold Moving at a third speed that is less than the first speed, wherein the second threshold is less than the first threshold.
  • the pushing device is further configured to drive the life saving device to continue in response to the distance between the life saving device and the wearable device not exceeding the second threshold for a predetermined period of time Moving toward the wearable device.
  • the pushing device is further configured to drive the life saving device toward the wearable at a second speed in response to the distance between the life saving device and the wearable device being greater than a first threshold
  • the device moves, and in response to the distance between the lifesaving device and the wearable device reaching a second threshold, stopping driving the lifesaving device or driving the lifesaving device to a third less than the second speed Speed motion, wherein the second threshold is less than the first threshold.
  • the pushing device is further configured to drive the life saving device to continue in response to the distance between the life saving device and the wearable device not exceeding the first threshold for a predetermined period of time Moving toward the wearable device.
  • the pushing device is further configured to be responsive to the wearable
  • the wearing device indicates that the direction of motion of the human body changes continuously over a predetermined period of time, and the lifesaving device is driven to continuously move toward the wearable device.
  • At least one of the wearable device and the lifesaving device is provided with a distance measuring device configured to measure a distance between the lifesaving device and the wearable device .
  • the distance measuring device comprises an ultrasonic distance measuring device, an electromagnetic wave distance measuring device and/or a binocular distance measuring device.
  • the distance measuring device includes three ranging sensors disposed on the lifesaving device, and the distance sensed by the three ranging sensors is available for determination by a trilateration positioning algorithm The location of the wearable device.
  • At least one of the wearable device and the lifesaving device body is provided with an alarm device, the alarm device being configured to be responsive to a distance between the lifesaving device and the wearable device An alarm is made greater than a third threshold, wherein the third threshold is greater than the first threshold.
  • the alarm device is further configured to alert in response to data anomalies in the wearable device or the lifesaving device body or a power level of the lifesaving device body being below a predetermined criterion.
  • the first speed is fixed or adjustable.
  • the wearable device is provided with an emergency switch, the pushing device being configured to drive the lifesaving device to continuously move toward the wearable device in response to the emergency switch being triggered.
  • the wearable device and the lifesaving device body are provided with an identification device configured to verify correspondence between the wearable device and the lifesaving device body.
  • one of the wearable devices corresponds to a plurality of the lifesaving device bodies.
  • the pushing device includes a propeller and a diverter configured to control a speed of movement of the life saving device, and the diverter is configured to control a direction of movement of the life saving device.
  • the propeller is a propeller propeller, a water jet propeller or a paddle propeller.
  • the wearable device and the lifesaving device respectively comprise an electronic compass for measuring its azimuth.
  • the lifesaving device includes a lifebuoy, a swim ring, a life buoy, a life jacket, or an inflatable device.
  • the lifebuoy is made of a metal foam having a lower density than water.
  • the life saving device is integral with the pushing device or is connected by a connecting device.
  • a follow-up lifesaving device capable of following a swimmer during swimming by a swimmer.
  • the life saver can be easily obtained when the swimmer encounters physical exhaustion or other accidents. In this way, the risk of drowning of the swimmer can be greatly reduced without affecting the swimmer's swimming experience.
  • FIG. 1 shows a block diagram of a structure of a follow-up lifesaving apparatus according to an exemplary embodiment of the present disclosure
  • FIG. 2 shows a structural block diagram of a life saving apparatus body according to an exemplary embodiment of the present disclosure
  • FIG. 3 illustrates a distance threshold setting between a life saving device and a wearable device in accordance with an exemplary embodiment of the present disclosure
  • FIG. 4 illustrates a wearable device and wearable according to an exemplary embodiment of the present disclosure. A distance between devices to determine the location and direction of the wearable device.
  • embodiments of the present disclosure are directed to providing a follow-up life saving device that can follow a swimmer's operation while the swimmer is swimming. In this way, the life saver can be easily obtained when the swimmer encounters physical exhaustion or other accidental conditions, thereby greatly reducing the risk of swimmers drowning.
  • FIG. 1 shows a structural block diagram of a follow-up lifesaving apparatus according to an exemplary embodiment of the present disclosure
  • FIG. 2 illustrates a structural block diagram of a life saving apparatus main body according to an exemplary embodiment of the present disclosure.
  • the following lifesaving device 100 described herein includes a wearable device 1 and a lifesaving device body 2.
  • the life saving apparatus main body 2 may include a life saving device 201 and a pushing device 202.
  • the wearable device 1 can be worn on a human body.
  • the wearable device 1 can be worn on the swimmer's wrist or neck, or can be placed on a swimming goggles or the like.
  • the wearable device 1 can also be worn on other parts of the human body, and the scope of the present disclosure is not limited in this respect.
  • the life saving device 201 can float on the water.
  • the lifesaving device 201 can be a lifebuoy, a swim ring, a life buoy, a life jacket, or an inflatable device.
  • the life saving device 201 is inflatable In the case of a device, it may be already filled with air, or it may be inflated but capable of being inflated in response to a trigger signal.
  • the inflatable device may include a bladder and a facility for providing a gas (such as a compressed gas cylinder, etc.). When the airbag needs to be inflated in an emergency, the compressed gas cylinder can be triggered to inflate the airbag.
  • the lifebuoy can be made of foamed plastic.
  • the lifebuoy may be made of foamed metal having a lower density than water to reduce the volume of the lifesaving device 201.
  • the lifebuoy is made of monolithic or segmented foam metal.
  • other types of life saving devices 201 may also be employed, and the scope of the present disclosure is not limited in this respect.
  • the pushing device 202 is coupled to the life saving device 201 to drive the life saving device 201 in the water.
  • the pushing device 202 can include a propeller and a diverter.
  • the thruster can be used to control the speed of movement of the life saver 201, and the steering gear can be used to control the direction of motion of the life saver 201.
  • the propeller may be a propeller propeller, a water jet propeller or a paddle propeller.
  • the number of thrusters may be one or more to provide different sized power or to adjust the direction of motion of the life saver 201 by separately adjusting the power level of the thrusters disposed at different locations.
  • the power source of the propeller can be electricity or fuel.
  • the life-saving device body 2 may also be provided with a solar cell to supplement the power, thereby enhancing the endurance capability of the life-saving device body 2.
  • the steering gear can include an electrically controlled marine steering gear.
  • other types of pushing devices 202 may also be employed, the scope of which is not limited in this respect.
  • the lifesaving device 201 and the pushing device 202 may be separate devices or separate devices connected by a connecting device.
  • the pushing device 202 can be disposed directly on the life saving device 201, in which case the pushing device 202 can directly drive the life saving device 201 to move together.
  • the pushing device 202 can also be coupled to the life saving device 201 by a connecting device such as a rope, in which case the pushing device 202 can drive the life saving device 201 together through the connecting device.
  • the life-saving device body 2 is separate from the wearable device 1.
  • the life-saving device body 2 and the wearable device 1 can communicate and measure via the wireless signal 3.
  • the wireless signal can be an ultrasonic wave, an electromagnetic wave, or a photoelectric signal.
  • the pushing device 202 can drive according to the measured distance
  • the life saving device 201 follows the movement of the wearable device 1, that is, the lifesaving device 201 can be driven to follow the swimmer's movement of the wearable device 1. Therefore, with such a follow-up lifesaving apparatus 100, the swimmer can easily obtain the life saving apparatus 201 when the swimmer encounters physical exhaustion or other unexpected conditions. In this way, the risk of drowning of the swimmer can be greatly reduced without affecting the swimmer's normal swimming experience.
  • the wearable device 1 and the lifesaving device 201 may be provided with a distance measuring device.
  • the distance measuring device is used to measure the distance between the life saving device 201 and the wearable device 1.
  • the distance measuring device may include an ultrasonic distance measuring device, an electromagnetic wave distance measuring device, and/or a binocular distance measuring device, and the like.
  • the ultrasonic distance measuring device may include an ultrasonic transmitter disposed on the wearable device 1 and an ultrasonic receiver disposed on the lifesaving device 201.
  • the distance measuring device can measure the distance between the life saving device 201 and the wearable device 1 at a certain point in time as a criterion for judgment.
  • the distance measuring device may measure the distance between the life saving device 201 and the wearable device 1 multiple times within a certain period of time, and may take the maximum or average value of the distance as a criterion. In other embodiments, other methods may be employed to measure the distance between the life saving device 201 and the wearable device 1, and the scope of the present disclosure is not limited in this respect.
  • FIG. 3 illustrates a distance threshold setting between the life saving device 201 and the wearable device 1 in accordance with an exemplary embodiment of the present disclosure.
  • the distance between the life saving device 201 and the wearable device 1 may be generally divided into four intervals, namely, 0 to R2, R2 to R1, R1 to R3, and greater than R3, where R1 is the first threshold.
  • R2 is a second threshold
  • R3 is a third threshold
  • the first threshold R1 is greater than the second threshold R2 and smaller than the third threshold R3.
  • the pushing device 202 can cause the life saving device 201 to follow the movement of the wearable device 1 by adjusting its forward direction and speed to maintain a certain distance between the life saving device 201 and the wearable device 1.
  • the pushing device 202 can drive the life saving device 201 along the direction of movement of the wearable device 1 at a first speed in response to the distance between the life saving device 201 and the wearable device 1 being less than the first threshold R1.
  • the parallel direction is moved so that the life saving device 201 can follow the movement of the wearable device 1.
  • the first speed can be fixed or adjustable.
  • the first speed may be a predetermined fixed speed.
  • the first speed The degree can be automatically adjusted by the pushing device 202 within a reasonable range according to the speed of the wearable device 1.
  • the preset fixed speed priority is higher than the adjustable speed.
  • the pushing device 202 in response to the distance between the life saving device 201 and the wearable device 1 being less than the first threshold R1, the pushing device 202 can also drive the life saving device 201 in the other direction at the first speed (eg, with the wearable device 1 The direction of motion is moved at a small angle) such that the life saving device 201 remains following the wearable device 1.
  • the pushing device 202 in response to the distance between the life saving device 201 and the wearable device 1 being less than the first threshold R1, can also drive the life saving device 201 to move toward the wearable device 1 at a first speed to cause the life saving device 201 remains following the wearable device 1.
  • the pushing device 202 can adjust the heading direction and speed to reduce the distance between the life saving device 201 and the wearable device 1. .
  • the pushing device 202 can drive the life saving device 201 to move toward the wearable device 1 at a second speed in response to the distance between the life saving device 201 and the wearable device 1 being greater than the first threshold R1 to wear the life saving device 201 with the wearable device 201
  • the distance between the devices 1 is adjusted to be less than the first threshold R1.
  • the second speed may be greater than the first speed. In other cases, the second speed may be equal to or even less than the first speed.
  • the distance between the life saving device 201 and the wearable device 1 can be quickly reduced to prevent the distance between the life saving device 201 and the wearable device 1 from being excessive.
  • the pushing device 202 can drive the life saving device 201 to move in other directions (eg, slightly offset from the position in which the wearable device 1 is located) to reduce the distance between the life saving device 201 and the wearable device 1 , The scope of the disclosure is not limited in this respect.
  • the pushing device 202 may stop driving the life saving device 201.
  • the pushing device 202 will wait for the distance between the life saving device 201 and the wearable device 1 to be pulled apart again or not, for a predetermined period of time, for example, the distance may remain unchanged or may be due to swimmers. It is reduced to the life saving device 201. Further operations during the time after the urging device 202 stops driving the lifesaving device 201 will be discussed below.
  • the pushing device 202 can be driven in response to the distance between the life saving device 201 and the wearable device 1 not exceeding the second threshold R2 for a predetermined period of time, without stopping the driving of the life saving device 201.
  • the life saving device 201 is continuously moved toward the swimmer wearing the wearable device 1. In this case, the distance between the life saving device 201 and the wearable device 1 is not pulled apart again, indicating that the swimmer may be in a drowning state and needs assistance. By continuously moving the life saving device 201 toward the wearable device 1, the swimmer can be made to escape from the life saving device 201.
  • the pushing device 202 can be used to drive the life saving device 201 to move toward the wearable device 1 at a second speed in response to the distance between the life saving device 101 and the wearable device 1 being greater than the first threshold R1, and responsive The distance between the lifesaving device 201 and the wearable device 1 reaches a second threshold R2, and the driving of the lifesaving device is stopped or the lifesaving device 201 is driven to move at a third speed less than the second speed. In this way, it can be ensured that the life saving device 201 follows the movement of the wearable device 1.
  • the pushing device 202 is further operative to drive the life saving device 201 continuously toward the wearable device in response to the distance between the life saving device 201 and the wearable device 1 not exceeding the first threshold R1 for a predetermined period of time 1 exercise.
  • the distance between the life saving device 201 and the wearable device 1 is not pulled again to be greater than R1 for a predetermined period of time, indicating that the swimmer may be in a drowning state and needs assistance.
  • the pushing device 202 may continuously indicate a large angle (eg, greater than 45) within a predetermined period of time (eg, 1 second, 2 seconds, 3 seconds, or 5 seconds, etc.) in response to the wearable device 1 indicating the direction of motion of the human body.
  • the degree, greater than 60 degrees or greater than 75 degrees, etc. changes while driving the lifesaving device 201 to continuously move toward the swimmer wearing the wearable device 1.
  • the pushing device 202 drives the lifesaving device 201 continuously.
  • the swimmer moves toward the wearable device 1. In this case, the swimmer may be in a drowning state and will be in a hurry and need help.
  • the swimmer can be made to escape from the life saving device 201.
  • the pushing device 202 can be pulled apart again (ie, greater than the second in response to the distance between the life saving device 201 and the wearable device 1 in a predetermined period of time, without stopping driving the life saving device 201. Threshold R2), while continuing the process discussed above with respect to the case where the distance between the life saving device 201 and the wearable device 1 is greater than the second threshold R2, will not be described herein.
  • the pushing device 202 can drive the life saving device 201 to move at a third speed less than the first speed, that is, the life saving device 201 can Follow the wearable device 1 at a lower speed.
  • the pushing device 202 can also wait for the distance between the life saving device 201 and the wearable device 1 to be pulled apart or not pulled apart for a predetermined period of time. With respect to the distance between the life saving device 201 and the wearable device 1 being pulled apart or not pulled apart, the pushing device 202 can drive the life saving device 201 in a manner similar to that described above.
  • At least one of the wearable device 1 and the lifesaving device body 2 is provided with an alarm device.
  • the alarm device may alert in response to the distance between the lifesaving device 201 and the wearable device 1 being greater than a third threshold R3.
  • a problem may occur in the system comprising the wearable device 1 and the lifesaving device body 2, such as the pushing device 202 on the lifesaving device body 2.
  • There may be a malfunction.
  • the alarm device can be alarmed by sound, vibration motor, buzzer or indicator light. In other embodiments, other types of alarm devices may also be employed, and the scope of the present disclosure is not limited in this respect.
  • the alarm device may also alert in response to data anomalies in the wearable device 1 or the lifesaving device body 2.
  • the distance measuring device may have a problem, and thus the alarm device may be used to alert the swimmer.
  • the alarm device may also perform an alarm in response to the power of the life-saving device body 2 being lower than a predetermined standard, so as to promptly notify the swimmer that the life-saving device body 2 can be There can be a shortage of power.
  • the alarm device may also alert in response to other abnormal conditions in the life-saving device body 2 or the wearable device 1, and the scope of the present disclosure is not limited in this respect.
  • the alarm device on the life-saving device body 2 can alert by swimming, such as sound, to alert the swimmer If there is a problem with the life-saving device body 2, the alarm device on the wearable device 1 can be alerted by sound, vibration or light indication, thereby alerting the swimmer.
  • an emergency switch such as a button, may be provided on the wearable device 1.
  • the pushing device 202 can drive the life saving device 201 to continuously move toward the wearable device 1 in response to the emergency switch being triggered.
  • the emergency switch can be actively triggered when the swimmer has an unexpected condition, so that the pushing device 202 brings the lifesaving device 201 to the position where the swimmer is located in a short time.
  • the pushing device 202 can drive the life saving device 201 to move at a higher speed so that the swimmer can get the life saving device 201 more quickly.
  • the wearable device 1 and the lifesaving device body 2 may be provided with an identification device.
  • the identification device is used to verify the correspondence between the wearable device 1 and the lifesaving device body 2 to ensure that the lifesaving device body 2 follows the correct wearable device 1. In this way, in the case where a plurality of swimmers use the following rescue equipment 100, it is possible to ensure that no interference occurs between each other.
  • one wearable device 1 may correspond to a plurality of lifesaving device bodies 2, which is especially useful for emergency rescue.
  • the rescuer can carry a plurality of lifesaving device bodies 2 to rescue by wearing the wearable device 1 on his body. In this way, not only can you save yourself as much as possible while saving people, but you can also save as many people as possible.
  • the electronic components therein can be waterproofed.
  • a protective device can be added to the pushing device 202.
  • a pusher can be placed over the iron mesh to prevent the swimmer's body parts from contacting the pusher 202.
  • other types of protection devices may be employed, the present disclosure The scope is not limited in this respect.
  • the life-saving device body 2 may also be provided with an anti-collision device such that the life-saving device body 2 does not hit an obstacle, such as a river bank, during the operation following the wearable device 1.
  • an anti-collision device such that the life-saving device body 2 does not hit an obstacle, such as a river bank, during the operation following the wearable device 1.
  • the lifesaving apparatus body 2 may also carry other items, such as medicines, clothing, etc., to facilitate use by swimmers.
  • the measurement of the distance between the life saving device 201 and the wearable device 1 may be performed by the wearable device 1 side or by the lifesaving device body 2 side.
  • the distance information can be used unilaterally, and is also shared by the wearable device 1 and the lifesaving device body 2 via the wireless signal 3.
  • the direction of advancement of the pushing device 202 can be determined in a variety of ways.
  • the ranging device can include three ranging sensors disposed on the lifesaving device 201, and the distance sensed by the three ranging sensors is used to determine wearability by a trilateration positioning algorithm.
  • the position of the device 1 is to further utilize the position of the wearable device 1 at different times to determine the direction of advancement of the pushing device 202.
  • three ranging sensors may also be disposed on the pushing device 202. In this way, a trilateration positioning algorithm can also be employed to determine the position of the wearable device 1.
  • FIG. 4 shows a schematic diagram of determining the position and the advancing direction of the wearable device 1 by the distance between the life saving device 201 and the wearable device 1 according to an exemplary embodiment of the present disclosure.
  • the distance between them and the wearable device 1 can be measured by three ranging sensors S1, S2, and S3 provided on the lifesaving device 201, respectively.
  • the three ranging sensors S1, S2, and S3 can measure three distances at a certain time point t1. Through these three distances, the position P1 at which the wearable device 1 is located at time t1 can be determined using a trilateration positioning algorithm. At another time point t2 after a lapse of time, the three ranging sensors S1, S2 and S3 can measure the other three distances. Similarly, by these additional three distances, the position P2 at which the wearable device 1 is located at time t2 can be determined using a trilateration positioning algorithm.
  • Connecting the position P1 to the position P2 can obtain the direction in which the wearable device 1 advances (ie, the direction in which the swimmer swims). According to the determined direction, the pushing device 202 can The direction in which the lifesaving device 201 is driven is adjusted or not adjusted to keep following the wearable device 1.
  • the orientation of the wearable device 1 relative to the lifesaving apparatus body 2 can be measured using a rotating small angle receiver on the lifesaving apparatus body 2.
  • the small angle receiver When the small angle receiver is facing the wearable device 1, the small angle receiver can receive the signal. When the small angle receiver is at other angles, the small angle receiver does not receive the signal. In this way, the orientation of the wearable device 1 relative to the lifesaving device body 2 can be roughly determined.
  • the location information of the wearable device 1 and the lifesaving device 201 can also be given by a third party, such as a high precision global positioning system (such as GPS, Beidou, Galileo, GLONASS, etc.).
  • the positional information of the wearable device 1 and the lifesaving device 201 can also be given by the constructed local positioning system.
  • a local positioning system constructed by a base station and a tag can also give location information of the wearable device 1 and the lifesaving device 201.
  • the distance and angle information between the wearable device 1 and the lifesaving device 201 can be calculated by a third party, or can be calculated by the wearable device 1 and the lifesaving device 201 based on information given by a third party.
  • the system constituted by the wearable device 1 and the lifesaving device body 2 can adopt different following or approaching strategies according to different situations.
  • the wearable device 1 and the lifesaving device 201 may each include an electronic compass for measuring their azimuth.
  • the advancing direction of the wearable device 1 and the rescue apparatus main body 2 can be calculated from the azimuth angles of the electronic compass at different times, thereby calculating the angle of the advancing direction of the wearable device 1 and the rescue apparatus main body 2.
  • the specific orientation of the wearable device 1 relative to the lifesaving device 201 can be measured.
  • the swimmer can easily obtain the life saving device 201 when the swimmer encounters physical exhaustion or other unexpected conditions, thereby greatly reducing the risk of the swimmer drowning. While the swimmer is swimming normally, the lifesaving device 201 can keep running following the swimmer and thus does not affect the swimmer's normal swimming experience.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Automation & Control Theory (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

一种跟随式救生设备（100），所述跟随式救生设备包括：可穿戴设备（1）；以及救生设备主体（2），所述救生设备主体与所述可穿戴设备是分离的，并且所述救生设备主体包括：救生装置（201），所述救生装置可漂浮在水上；以及推动装置（202），所述推动装置耦接至所述救生装置，并且被配置为根据所述救生装置与所述可穿戴设备之间的距离来驱动所述救生装置跟随所述可穿戴设备运动。

Description

跟随式救生设备 技术领域
本公开的实施例总体上涉及救生设备，并且更具体地，涉及一种跟随式救生设备。
背景技术
游泳是一种常见的健身运动方式，人们可以在游泳馆、江、河、湖、海或水库里游泳。在游泳的过程中，如果游泳者遇到体力不支或者其他意外情况，则极有可能发生溺水事故。在这些情况下，如果附近没有其他人发现处于危险中的游泳者，则游泳者极有可能因溺水而死亡。即使是在有附近的人发现游泳者的情况下，附近的人也不敢轻易下水去救人，因为游泳者在溺水的情况下出于求生的本能，会不顾一切地抓住或抱住救人者。这样，如果救人者水性不好或者体力不支，往往会导致救人者也处于危险之中。如果在该游泳场所存在诸如救生圈之类的救生装置，则救人者可以朝向游泳者扔去救生圈。然而，在扔出过程中会因空气阻力而无法扔到较远的距离。因此，在处于危险中的游泳者距离岸边较远的情况下无法将救生圈扔到游泳者所处的位置。此外，即使在游泳者距离岸边较近的情况下，也很难保证将救生圈准确地扔到游泳者所处的位置，这将会导致救援行动整体拖延，可能错过对游泳者的最佳救助时间。
发明内容
本公开的目的是提供一种跟随式救生设备，以至少部分地解决现有技术中所存在的上述问题。
根据本公开的实施例提供了一种跟随式救生设备。所述跟随式救生设备包括：可穿戴设备，所述可穿戴设备可穿戴于人体上；以及救 生设备主体，所述救生设备主体与所述可穿戴设备是分离的，并且所述救生设备主体包括：救生装置，所述救生装置可漂浮在水上；以及推动装置，所述推动装置耦接至所述救生装置，并且被配置为根据所述救生装置与所述可穿戴设备之间的距离来驱动所述救生装置跟随所述可穿戴设备运动。
在一个实施例中，所述推动装置进一步被配置为响应于所述救生装置与所述可穿戴设备之间的距离小于第一阈值，而驱动所述救生装置以第一速度运动，以使得所述救生装置跟随所述可穿戴设备运动。
在一个实施例中，所述推动装置进一步被配置为响应于所述救生装置与所述可穿戴设备之间的距离大于所述第一阈值，而驱动所述救生装置以第二速度朝向所述可穿戴设备运动，以将所述救生装置与所述可穿戴设备之间的距离调整为小于所述第一阈值。
在一个实施例中，所述推动装置进一步被配置为响应于所述救生装置与所述可穿戴设备之间的距离达到第二阈值，而停止对所述救生装置进行驱动或者驱动所述救生装置以小于所述第一速度的第三速度运动，其中所述第二阈值小于所述第一阈值。
在一个实施例中，所述推动装置进一步被配置为响应于所述救生装置与所述可穿戴设备之间的距离在预定时间段内不超过所述第二阈值，而驱动所述救生装置持续地朝向所述可穿戴设备运动。
在一个实施例中，所述推动装置进一步被配置为响应于所述救生装置与所述可穿戴设备之间的距离大于第一阈值，而驱动所述救生装置以第二速度朝向所述可穿戴设备运动，并且响应于所述救生装置与所述可穿戴设备之间的距离达到第二阈值，而停止对所述救生装置进行驱动或者驱动所述救生装置以小于所述第二速度的第三速度运动，其中所述第二阈值小于所述第一阈值。
在一个实施例中，所述推动装置进一步被配置为响应于所述救生装置与所述可穿戴设备之间的距离在预定时间段内不超过所述第一阈值，而驱动所述救生装置持续地朝向所述可穿戴设备运动。
在一个实施例中，所述推动装置进一步被配置为响应于所述可穿 戴设备指示人体的运动方向在预定时间段内连续地大角度改变，而驱动所述救生装置持续地朝向所述可穿戴设备运动。
在一个实施例中，所述可穿戴设备和所述救生装置中的至少一个上设置有测距装置，所述测距装置被配置为测量所述救生装置与所述可穿戴设备之间的距离。
在一个实施例中，所述测距装置包括超声波测距装置、电磁波测距装置和/或双目测距装置。
在一个实施例中，所述测距装置包括设置在所述救生装置上的三个测距传感器，并且由所述三个测距传感器感测得的距离可用于通过三边测量定位算法来确定所述可穿戴设备的位置。
在一个实施例中，所述可穿戴设备和所述救生设备主体中的至少一个上设置有报警装置，所述报警装置被配置为响应于所述救生装置与所述可穿戴设备之间的距离大于第三阈值而进行报警，其中所述第三阈值大于所述第一阈值。
在一个实施例中，所述报警装置进一步被配置为响应于所述可穿戴设备或所述救生设备主体的数据异常或者所述救生设备主体的电量低于预定标准而进行报警。
在一个实施例中，所述第一速度是固定的或可调的。
在一个实施例中，所述可穿戴设备上设置有紧急开关，所述推动装置被配置为响应于所述紧急开关被触发而驱动所述救生装置持续地朝向所述可穿戴设备运动。
在一个实施例中，所述可穿戴设备和所述救生设备主体上设置有身份识别装置，所述身份识别装置被配置为验证所述可穿戴设备与所述救生设备主体之间对应性。
在一个实施例中，一个所述可穿戴设备对应于多个所述救生设备主体。
在一个实施例中，所述推动装置包括推进器以及转向器，所述推进器被配置为控制所述救生装置的运动速度，并且所述转向器被配置为控制所述救生装置的运动方向。
在一个实施例中，所述推进器为螺旋桨推进器、喷水式推进器或明轮推进器。
在一个实施例中，所述可穿戴设备和所述救生装置分别包括用于测量其方位角的电子罗盘。
在一个实施例中，所述救生装置包括救生圈、游泳圈、救生浮标、救生衣或可充气式设备。
在一个实施例中，所述救生圈由密度小于水的泡沫金属制成。
在一个实施例中，所述救生装置与所述推动装置是一体的或者通过连接装置连接的分立设备。
在本公开的各个实施例中，提供了一种能够在游泳者游泳的过程中跟随游泳者运行的跟随式救生设备。在游泳者遇到体力不支或者其他意外情况时，能够容易地得到救生装置。以此方式，在不影响游泳者的游泳体验的情况下，能够大大降低游泳者溺水的风险。
提供发明内容部分是为了简化的形式来介绍对概念的选择，它们在下文的具体实施方式中将被进一步描述。发明内容部分无意标识要求保护的主题的关键特征或主要特征，也无意限制要求保护的主题的范围。
附图说明
通过参照附图的以下详细描述，本公开实施例的上述和其他目的、特征和优点将变得更容易理解。在附图中，将以示例以及非限制性的方式对本公开的多个实施例进行说明，其中：
图1示出了根据本公开的示例性实施例的跟随式救生设备的结构框图；
图2示出了根据本公开的示例性实施例的救生设备主体的结构框图；
图3示出了根据本公开的示例性实施例的救生装置与可穿戴设备之间的距离阈值设置；以及
图4示出了根据本公开的示例性实施例的通过救生装置与可穿戴 设备之间的距离来确定可穿戴设备的位置和前进方向的示意图。
具体实施方式
现在将参照附图中所示的各种示例性实施例对本公开的原理进行说明。应当理解，这些实施例的描述仅仅为了使得本领域的技术人员能够更好地理解并进一步实现本公开，而并不意在以任何方式限制本公开的范围。应当注意的是，在可行情况下可以在图中使用类似或相同的附图标记，并且类似或相同的附图标记可以表示类似或相同的功能。本领域的技术人员将容易地认识到，从下面的描述中，本文中所说明的结构和方法的替代实施例可以被采用而不脱离通过本文描述的本发明的原理。
如上文所述，在游泳者游泳的过程中，如果遇到体力不支或者其他意外情况，则极有可能发生溺水事故。基于此，本公开的实施例旨在提供一种跟随式救生设备，这种设备能够在游泳者游泳的过程中跟随游泳者运行。以此方式，在游泳者遇到体力不支或者其他意外情况时，能够容易地得到救生装置，从而能够大大降低游泳者溺水的风险。
下面将结合图1至图4来描述根据本公开示例性实施例的跟随式救生设备的工作原理。
图1示出了根据本公开的示例性实施例的跟随式救生设备的结构框图，以及图2示出了根据本公开的示例性实施例的救生设备主体的结构框图。如图1和图2所示，总体上，在此描述的跟随式救生设备100包括可穿戴设备1和救生设备主体2。救生设备主体2可以包括救生装置201和推动装置202。
可穿戴设备1可以佩戴于人体上。例如，可穿戴设备1可以佩戴于游泳者的手腕上或脖子上，或者可以设置于泳镜上等。在其他实施例中，可穿戴设备1也可以佩戴于人体上的其他部位，本公开的范围在此方面不受限制。
救生装置201能够漂浮在水上。救生装置201可以是救生圈、游泳圈、救生浮标、救生衣或可充气式设备。在救生装置201是可充气 式设备的情况下，其可以已经充好气，也可以是还没有充气但能够响应于触发信号而进行充气。例如，可充气式设备可以包括气囊和用于提供气体的设施(诸如压缩气体气瓶等)。在紧急情况下需要对气囊进行充气时，可以触发压缩气体气瓶对气囊进行充气。在一个示例中，救生圈可以由泡沫塑料制成。在另一示例中，救生圈可以由密度小于水的泡沫金属制成，以便减小救生装置201的体积。例如，救生圈由整块或者分段连接泡沫金属制成。在其他实施例中，还可以采用其他类型的救生装置201，本公开的范围在此方面不受限制。
推动装置202耦接至救生装置201，以在水中对救生装置201进行驱动。在一个实施例中，推动装置202可以包括推进器以及转向器。推进器可以用于控制救生装置201的运动速度，而转向器可以用于控制救生装置201的运动方向。例如，推进器可以是螺旋桨推进器、喷水式推进器或明轮推进器等。推进器的数目可以为一个或多个，以便提供不同大小的动力或者通过分别调节设置于不同部位的推进器的动力大小来调整救生装置201的运动方向。推进器的动力源可以为电力或燃料。在一些实施例中，救生设备主体2上还可以设置有太阳能电池，以便补充电力，从而增强救生设备主体2的续航能力。转向器可以包括电控制的船用舵机。在其他实施例中，还可以采用其他类型的推动装置202，本公开的范围在此方面不受限制。
救生装置201与推动装置202可以是一体的或者通过连接装置连接的分立设备。例如，在一些示例中，推动装置202可以直接设置在救生装置201上，在这种情况下，推动装置202能够直接带动救生装置201一起运动。在另一些示例中，推动装置202也可以通过诸如绳索之类的连接装置来耦接至救生装置201，在这种情况下，推动装置202能够通过上述连接装置来带动救生装置201一起运动。
救生设备主体2与可穿戴设备1是分离的。在一些实施例中，救生设备主体2与可穿戴设备1可以通过无线信号3进行通信和测距。无线信号可以为超声波、电磁波或光电信号等。通过测量救生装置201与可穿戴设备1之间的距离，推动装置202可以根据测得的距离来驱 动救生装置201跟随可穿戴设备1运动，也即，能够驱动救生装置201跟随佩戴可穿戴设备1的游泳者运动。因此，利用这样的跟随式救生设备100，在游泳者遇到体力不支或者其他意外情况时，游泳者能够容易地得到救生装置201。以此方式，在不影响游泳者的正常游泳体验的情况下，能够大大降低游泳者溺水的风险。
在一个实施例中，可穿戴设备1和救生装置201中的至少一个上可以设置有测距装置。测距装置用于测量救生装置201与可穿戴设备1之间的距离。例如，测距装置可以包括超声波测距装置、电磁波测距装置和/或双目测距装置等。作为示例，超声波测距装置可以包括设置在可穿戴设备1上的超声波发射器和设置在救生装置201上的超声波接收器。在一个示例中，测距装置可以测量在某一时间点处救生装置201与可穿戴设备1之间的距离作为判断标准。在另一示例中，测距装置可以在某一时间段内多次测量救生装置201与可穿戴设备1之间的距离，并且可以取距离的最大值或平均值作为判断标准。在其他实施例中，还可以采用其他方法来测量救生装置201与可穿戴设备1之间的距离，本公开的范围在此方面不受限制。
图3示出了根据本公开的示例性实施例的救生装置201与可穿戴设备1之间的距离阈值设置。在该示例性实施例中，救生装置201与可穿戴设备1之间距离总体上可以划分为四个区间，即0至R2、R2至R1、R1至R3以及大于R3，其中R1为第一阈值，R2为第二阈值，R3为第三阈值，第一阈值R1大于第二阈值R2并且小于第三阈值R3。
在游泳者正常游泳的情况下，推动装置202可以通过调整自身的前进方向和速度来带动救生装置201跟随可穿戴设备1运动，以保持救生装置201与可穿戴设备1之间的特定距离。例如，在一个实施例中，推动装置202可以响应于救生装置201与可穿戴设备1之间的距离小于第一阈值R1，而驱动救生装置201以第一速度沿与可穿戴设备1的运动方向平行的方向运动，以使得救生装置201可以跟随可穿戴设备1运动。第一速度可以是固定的或可调的。例如，在一些示例中，第一速度可以是预先设定的固定速度。在另一些示例中，第一速 度可以由推动装置202根据可穿戴设备1的速度在合理的范围内自动调整。预先设定的固定速度优先级高于可调的速度。在另一实施例中，响应于救生装置201与可穿戴设备1之间的距离小于第一阈值R1，推动装置202也可以驱动救生装置201以第一速度沿其他方向(例如与可穿戴设备1的运动方向呈小角度)运动，以使得救生装置201保持跟随可穿戴设备1。在其它实施方式中，响应于救生装置201与可穿戴设备1之间的距离小于第一阈值R1，推动装置202也可以驱动救生装置201以第一速度朝向可穿戴设备1运动，以使得救生装置201保持跟随可穿戴设备1。
在一个实施例中，如果救生装置201与可穿戴设备1之间的距离大于第一阈值R1，则推动装置202可以调整前进方向和速度以减小救生装置201与可穿戴设备1之间的距离。例如，推动装置202可以响应于救生装置201与可穿戴设备1之间的距离大于第一阈值R1，而驱动救生装置201以第二速度朝向可穿戴设备1运动，以将救生装置201与可穿戴设备1之间的距离调整为小于第一阈值R1。在一些情况下，第二速度可以大于第一速度。在另一些情况下，第二速度可以等于或者甚至小于第一速度。通过使救生装置201以第二速度朝向可穿戴设备1运动，能够迅速地减小救生装置201与可穿戴设备1之间的距离，以免救生装置201与可穿戴设备1之间的距离过大。在其他实施例中，推动装置202可以驱动救生装置201沿其他方向(例如略微偏离可穿戴设备1所处的位置的方向)运动，以减小救生装置201与可穿戴设备1之间的距离，本公开的范围在此方面不受限制。
在一个实施例中，如果救生装置201与可穿戴设备1之间的距离达到第二阈值R2，则推动装置202可以停止对救生装置201进行驱动。在这种情况下，推动装置202将在预定时间段内等待救生装置201与可穿戴设备1之间的距离再次拉开或未被拉开，例如该距离可能保持不变或者可能由于游泳者游向救生装置201而减小。下面将讨论救生设备主体2在推动装置202停止对救生装置201进行驱动之后时间里的进一步操作。
在一个实施例中，推动装置202可以在停止对救生装置201进行驱动的情况下，响应于救生装置201与可穿戴设备1之间的距离在预定时间段内不超过第二阈值R2，而驱动救生装置201持续地朝向佩戴可穿戴设备1的游泳者运动。在这种情况下，救生装置201与可穿戴设备1之间的距离没有再次被拉开，说明游泳者可能处于溺水状态，需要得到救助。通过使救生装置201持续地朝向可穿戴设备1运动，可以使游泳者得到救生装置201以脱险。
在一个实施例中，推动装置202可以用于响应于救生装置101与可穿戴设备1之间的距离大于第一阈值R1，而驱动救生装置201以第二速度朝向可穿戴设备1运动，并且响应于救生装置201与可穿戴设备1之间的距离达到第二阈值R2，而停止对救生装置进行驱动或者驱动救生装置201以小于第二速度的第三速度运动。以此方式，可以确保救生装置201跟随可穿戴设备1运动。在进一步的实施例中，推动装置202还用于响应于救生装置201与可穿戴设备1之间的距离在预定时间段内不超过第一阈值R1，而驱动救生装置201持续地朝向可穿戴设备1运动。在这种情况下，救生装置201与可穿戴设备1之间的距离在预定时间段内没有再次被拉开到大于R1，说明游泳者可能处于溺水状态，需要得到救助。通过使救生装置201持续地朝向可穿戴设备1运动，可以使游泳者得到救生装置201以脱险。
在一个实施例中，推动装置202可以响应于可穿戴设备1指示人体的运动方向在预定时间段内(例如1秒、2秒、3秒或5秒等)连续地大角度(例如，大于45度、大于60度或大于75度等)改变，而驱动救生装置201持续地朝向佩戴可穿戴设备1的游泳者运动。例如，在可穿戴设备1指示人体的运动方向在3秒内连续地以大于45度的角度改变多次(例如，两次、三次或四次等)，则推动装置202驱动救生装置201持续地朝向佩戴可穿戴设备1的游泳者运动。在这种情况下，游泳者可能处于溺水状态而胡乱扑腾，需要得到救助。通过使救生装置201持续地朝向可穿戴设备1运动，可以使游泳者得到救生装置201以脱险。
在一个实施例中，推动装置202可以在停止对救生装置201进行驱动的情况下，响应于救生装置201与可穿戴设备1之间的距离在预定时间段内再次被拉开(即大于第二阈值R2)，而继续执行在上文中关于救生装置201与可穿戴设备1之间的距离大于第二阈值R2的情况下所讨论的过程，在此将不再赘述。
在一个实施例中，如果救生装置201与可穿戴设备1之间的距离达到第二阈值R2，推动装置202可以驱动救生装置201以小于第一速度的第三速度运动，也即救生装置201可以以较小的速度跟随可穿戴设备1运动。在这种情况下，推动装置202同样可以在预定时间段内等待救生装置201与可穿戴设备1之间的距离再次拉开或未被拉开。针对救生装置201与可穿戴设备1之间的距离再次拉开或未被拉开，推动装置202可以采用与上文中所描述的类似的方法对救生装置201进行驱动。
在一个实施例中，可穿戴设备1和救生设备主体2中的至少一个上设置有报警装置。报警装置可以响应于救生装置201与可穿戴设备1之间的距离大于第三阈值R3而进行报警。在救生装置201与可穿戴设备1之间的距离大于第三阈值R3的情况下，说明可穿戴设备1与救生设备主体2组成的系统可能出现了问题，例如救生设备主体2上的推动装置202可能出现故障。此时，通过采用报警装置进行报警，能够及时地提醒游泳者设备出现了问题，以便采取进一步的措施。报警装置可以采用声音、振动马达、蜂鸣器或指示灯等进行报警。在其他实施例中，还可以采用其他类型的报警装置，本公开的范围在此方面不受限制。
在进一步的实施例中，报警装置还可以响应于可穿戴设备1或救生设备主体2的数据异常而进行报警。例如，在可穿戴设备1或救生设备主体2超过预定时间无法接收到对方的信息的情况下，说明测距装置可能出现了问题，因此可以采用报警装置进行报警以提醒游泳者。在另一些实施例中，报警装置还可以响应于救生设备主体2的电量低于预定标准而进行报警，以便及时通知游泳者救生设备主体2可 能存在电量不足的情况。在其他实施例中，报警装置还可以响应于救生设备主体2或可穿戴设备1出现其他异常情况而进行报警，本公开的范围在此方面不受限制。在可穿戴设备1和救生设备主体2都设置有报警装置的情况下，如果可穿戴设备1出现了问题，救生设备主体2上的报警装置可以通过诸如声音之类的方式进行报警，来提醒游泳者；而如果救生设备主体2出现了问题，则可穿戴设备1上的报警装置可以采用声音、振动或灯光指示等进行报警，从而提醒游泳者。
在一个实施例中，可穿戴设备1上可以设置有紧急开关，诸如按钮。推动装置202可以响应于紧急开关被触发而驱动救生装置201持续地朝向可穿戴设备1运动。以此方式，在游泳者出现意外情况时，可以主动触发紧急开关，以使得推动装置202在短时间内将救生装置201带到游泳者所处的位置。在这种情况下，推动装置202可以以较大的速度带动救生装置201运动，以便游泳者更快地得到救生装置201。
在一个实施例中，可穿戴设备1和救生设备主体2上可以设置有身份识别装置。身份识别装置用于验证可穿戴设备1与救生设备主体2之间对应性，以确保救生设备主体2跟随正确的可穿戴设备1。以此方式，在多个游泳者均使用跟随式救生设备100的情况下，可以确保相互之间不会产生干扰。
在一个实施例中，一个可穿戴设备1可以对应于多个救生设备主体2，这种情况对于紧急救援时尤其有用。在进行救援时，施救者通过佩戴在其身上的可穿戴设备1可以带着多个救生设备主体2前去施救。以此方式，不但能够在救人的时候尽可能地保全自己，而且还可以一次救尽可能多的落水者。
为了确保跟随式救生设备100能够在水中正常运行，可以对其中的电子部件进行防水处理。此外，为了避免推动装置202对游泳者的身体造成伤害，可以向推动装置202添加保护装置。例如，在一些示例中，可以采用铁网将推动装置罩住，以免游泳者的身体部位接触推动装置202。在其他示例中，可以采用其他类型的保护装置，本公开 的范围在此方面不受限制。
在一些实施例中，救生设备主体2上还可以设置有防撞装置，使得救生设备主体2在跟随可穿戴设备1运行的过程中不会撞到障碍物，比如河岸。
在一个实施例中，救生设备主体2还可以携带其他物品，例如药品、衣物等，以便于由游泳者使用。
在根据本公开的实施例中，对救生装置201与可穿戴设备1之间的距离的测量可以由可穿戴设备1一侧完成，也可以由救生设备主体2一侧完成。距离信息可以单方使用，也通过无线信号3由可穿戴设备1和救生设备主体2共享。
推动装置202的前进方向可以采用各种方式来确定。例如，在一个实施例中，测距装置可以包括设置在救生装置201上的三个测距传感器，并且由三个测距传感器感测得的距离用于通过三边测量定位算法来确定可穿戴设备1的位置，以便进一步利用可穿戴设备1在不同时间的位置来确定推动装置202的前进方向。在其他实施例中，三个测距传感器还可以设置在推动装置202上。以此方式，同样可以采用三边测量定位算法来确定可穿戴设备1的位置。
图4示出了根据本公开的示例性实施例的通过救生装置201与可穿戴设备1之间的距离来确定可穿戴设备1的位置和前进方向的示意图。
如图4所示，可以通过设置在救生装置201上三个测距传感器S1、S2和S3分别测量它们与可穿戴设备1之间的距离。例如，三个测距传感器S1、S2和S3可以在某一时间点t1测得三个距离。通过这三个距离，采用三边测量定位算法可以确定可穿戴设备1在时间t1所处的位置P1。在经过一段时间之后的另一时间点t2，三个测距传感器S1、S2和S3可以测得另外的三个距离。类似地，通过这另外的三个距离，采用三边测量定位算法可以确定可穿戴设备1在时间t2所处的位置P2。将位置P1与位置P2连接，可以获得可穿戴设备1前进的方向(即游泳者游泳的方向)。根据所确定的方向，推动装置202可 以调节或不调节其驱动救生装置201的方向，以保持跟随可穿戴设备1。
在一些实施例中，可穿戴设备1相对于救生设备主体2的方位可以用救生设备主体2上的一个旋转的小角度接收器来测得。当小角度接收器正对可穿戴设备1时，小角度接收器可以接收到信号。当小角度接收器处于其他角度时，小角度接收器接收不到信号。以此方式，可以大致判断出可穿戴设备1相对于救生设备主体2的方位。
可穿戴设备1和救生装置201的位置信息也可以由第三方给出，诸如高精度的全球定位系统(如GPS、北斗、伽利略，格洛纳斯等)。可穿戴设备1和救生装置201的位置信息也可以由构建好的局部的定位系统给出。例如，由基站和标签共同构建的局部定位系统也可以给出可穿戴设备1和救生装置201的位置信息。可穿戴设备1与救生装置201之间的距离和角度信息既可以由第三方计算后给出，也可以由可穿戴设备1和救生装置201根据第三方给予的信息自行计算得出。通过上述方式，可穿戴设备1和救生设备主体2构成的系统可以根据不同的情况采取不同的跟随或者接近策略。
在一个实施例中，可穿戴设备1和救生装置201可以分别包括用于测量其方位角的电子罗盘。可以根据在不同时刻电子罗盘的方位角计算出可穿戴设备1和救生设备主体2的前进方向，从而计算出可穿戴设备1和救生设备主体2的前进方向的夹角。通过结合可穿戴设备1和救生装置201之间的距离信息，可以测出可穿戴设备1相对于救生装置201的具体方位。
利用根据本公开的各个实施例提供的跟随式救生设备100，在游泳者遇到体力不支或者其他意外情况时，游泳者能够容易地得到救生装置201，从而大大降低了游泳者溺水的风险。而在游泳者正常游泳的过程中，救生装置201能够保持跟随游泳者运行，因而不会影响游泳者的正常游泳体验。
以上已经描述了本公开的各实施例，上述说明是示例性的，并非穷尽性的，并且也不限于所公开的各实施例。在不偏离所说明的各实 施例的范围和精神的情况下，对于本技术领域的普通技术人员来说许多修改和变更都是显而易见的。本文中所用术语的选择，旨在最好地解释各实施例的原理、实际应用或对市场中的技术的改进，或者使本技术领域的其他普通技术人员能理解本文公开的各实施例。

Claims (26)

  1. 一种跟随式救生设备，其特征在于，所述跟随式救生设备包括：
    可穿戴设备，所述可穿戴设备可穿戴于人体上；以及
    救生设备主体，所述救生设备主体与所述可穿戴设备是分离的，并且所述救生设备主体包括：
    救生装置，所述救生装置可漂浮在水上；以及
    推动装置，所述推动装置耦接至所述救生装置，并且被配置为根据所述救生装置与所述可穿戴设备之间的距离来驱动所述救生装置跟随所述可穿戴设备运动。
  2. 根据权利要求1所述的跟随式救生设备，其特征在于，所述推动装置进一步被配置为响应于所述救生装置与所述可穿戴设备之间的距离小于第一阈值，而驱动所述救生装置以第一速度运动，以使得所述救生装置跟随所述可穿戴设备运动。
  3. 根据权利要求2所述的跟随式救生设备，其特征在于，所述推动装置进一步被配置为响应于所述救生装置与所述可穿戴设备之间的距离大于所述第一阈值，而驱动所述救生装置以第二速度朝向所述可穿戴设备运动，以将所述救生装置与所述可穿戴设备之间的距离调整为小于所述第一阈值。
  4. 根据权利要求2所述的跟随式救生设备，其特征在于，所述推动装置进一步被配置为响应于所述救生装置与所述可穿戴设备之间的距离达到第二阈值，而停止对所述救生装置进行驱动或者驱动所述救生装置以小于所述第一速度的第三速度运动，其中所述第二阈值小于所述第一阈值。
  5. 根据权利要求4所述的跟随式救生设备，其特征在于，所述推动装置进一步被配置为响应于所述救生装置与所述可穿戴设备之间的距离在预定时间段内不超过所述第二阈值，而驱动所述救生装置持续地朝向所述可穿戴设备运动。
  6. 根据权利要求1所述的跟随式救生设备，其特征在于，所述推 动装置进一步被配置为响应于所述救生装置与所述可穿戴设备之间的距离大于第一阈值，而驱动所述救生装置以第二速度朝向所述可穿戴设备运动，并且响应于所述救生装置与所述可穿戴设备之间的距离达到第二阈值，而停止对所述救生装置进行驱动或者驱动所述救生装置以小于所述第二速度的第三速度运动，其中所述第二阈值小于所述第一阈值。
  7. 根据权利要求6所述的跟随式救生设备，其特征在于，所述推动装置进一步被配置为响应于所述救生装置与所述可穿戴设备之间的距离在预定时间段内不超过所述第一阈值，而驱动所述救生装置持续地朝向所述可穿戴设备运动。
  8. 根据权利要求1所述的跟随式救生设备，其特征在于，所述推动装置进一步被配置为响应于所述可穿戴设备指示人体的运动方向在预定时间段内连续地大角度改变，而驱动所述救生装置持续地朝向所述可穿戴设备运动。
  9. 根据权利要求1所述的跟随式救生设备，其特征在于，所述可穿戴设备和所述救生装置中的至少一个上设置有测距装置，所述测距装置被配置为测量所述救生装置与所述可穿戴设备之间的距离。
  10. 根据权利要求9所述的跟随式救生设备，其特征在于，所述测距装置包括超声波测距装置、电磁波测距装置和/或双目测距装置。
  11. 根据权利要求9所述的跟随式救生设备，其特征在于，所述测距装置包括设置在所述救生装置上的三个测距传感器，并且由所述三个测距传感器感测得的距离可用于通过三边测量定位算法来确定所述可穿戴设备的位置。
  12. 根据权利要求2或6所述的跟随式救生设备，其特征在于，所述可穿戴设备和所述救生设备主体中的至少一个上设置有报警装置，所述报警装置被配置为响应于所述救生装置与所述可穿戴设备之间的距离大于第三阈值而进行报警，其中所述第三阈值大于所述第一阈值。
  13. 根据权利要求12所述的跟随式救生设备，其特征在于，所述 报警装置进一步被配置为响应于所述可穿戴设备或所述救生设备主体的数据异常或者所述救生设备主体的电量低于预定标准而进行报警。
  14. 根据权利要求2所述的跟随式救生设备，其特征在于，所述第一速度是固定的或可调的。
  15. 根据权利要求1所述的跟随式救生设备，其特征在于，所述可穿戴设备上设置有紧急开关，所述推动装置被配置为响应于所述紧急开关被触发而驱动所述救生装置持续地朝向所述可穿戴设备运动。
  16. 根据权利要求1所述的跟随式救生设备，其特征在于，所述可穿戴设备和所述救生设备主体上设置有身份识别装置，所述身份识别装置被配置为验证所述可穿戴设备与所述救生设备主体之间对应性。
  17. 根据权利要求16所述的跟随式救生设备，其特征在于，一个所述可穿戴设备对应于多个所述救生设备主体。
  18. 根据权利要求1所述的跟随式救生设备，其特征在于，所述推动装置包括推进器以及转向器，所述推进器被配置为控制所述救生装置的运动速度，并且所述转向器被配置为控制所述救生装置的运动方向。
  19. 根据权利要求18所述的跟随式救生设备，其特征在于，所述推进器为螺旋桨推进器、喷水式推进器或明轮推进器。
  20. 根据权利要求1所述的跟随式救生设备，其特征在于，所述可穿戴设备和所述救生装置分别包括用于测量其方位角的电子罗盘。
  21. 根据权利要求1所述的跟随式救生设备，其特征在于，所述救生装置包括救生圈、游泳圈、救生浮标、救生衣或可充气式设备。
  22. 根据权利要求21所述的跟随式救生设备，其特征在于，所述救生圈由密度小于水的泡沫金属制成。
  23. 根据权利要求1所述的跟随式救生设备，其特征在于，所述救生装置与所述推动装置是一体的或者通过连接装置连接的分立设备。
  24. 根据权利要求1所述的跟随式救生设备，其特征在于，所述可穿戴设备和所述救生装置的位置信息由第三方提供。
  25. 根据权利要求1所述的跟随式救生设备，其特征在于，所述救生装置与所述可穿戴设备之间的距离信息由第三方提供。
  26. 根据权利要求1所述的跟随式救生设备，其特征在于，所述救生装置与所述可穿戴设备之间的方位信息由第三方提供。
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