EP4257475B1 - Rettungsboje - Google Patents

Rettungsboje

Info

Publication number
EP4257475B1
EP4257475B1 EP21899814.4A EP21899814A EP4257475B1 EP 4257475 B1 EP4257475 B1 EP 4257475B1 EP 21899814 A EP21899814 A EP 21899814A EP 4257475 B1 EP4257475 B1 EP 4257475B1
Authority
EP
European Patent Office
Prior art keywords
radar
reflector
radar reflector
reflectors
life buoy
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP21899814.4A
Other languages
English (en)
French (fr)
Other versions
EP4257475A4 (de
EP4257475A1 (de
EP4257475C0 (de
Inventor
Hongzhen ZHENG
Yongchao LU
Yaozhi SUN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Guanke Communication Co Ltd
Original Assignee
Guangdong Guanke Communication Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Guanke Communication Co Ltd filed Critical Guangdong Guanke Communication Co Ltd
Publication of EP4257475A1 publication Critical patent/EP4257475A1/de
Publication of EP4257475A4 publication Critical patent/EP4257475A4/de
Application granted granted Critical
Publication of EP4257475B1 publication Critical patent/EP4257475B1/de
Publication of EP4257475C0 publication Critical patent/EP4257475C0/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • B63C9/082—Annular or U-shaped life-buoys intended to be thrown to persons
    • 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
    • B63C9/20—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like characterised by signalling means, e.g. lights
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/34—Adaptation for use in or on ships, submarines, buoys or torpedoes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/02—Refracting or diffracting devices, e.g. lens, prism
    • H01Q15/08—Refracting or diffracting devices, e.g. lens, prism formed of solid dielectric material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/14—Reflecting surfaces; Equivalent structures
    • H01Q15/18—Reflecting surfaces; Equivalent structures comprising plurality of mutually inclined plane surfaces, e.g. corner reflector
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/20—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path
    • H01Q21/205—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path providing an omnidirectional coverage

Definitions

  • Life jackets, life buoys and lifeboats are common marine life-saving apparatuses, and all rely on buoyancy to float on the sea, so that people floats on the sea and waits for rescue when falling into the water.
  • Some existing life-saving apparatuses are provided with signal transmitters to facilitate the discovery of a person in distress by patrol personnel, so that the patrol personnel discover the person in distress through a signal receiving device. Due to the signal transmitter arranged in the life-saving apparatus, a power supply is also required in the life-saving apparatus of such a structure.
  • the life-saving apparatus of the relatively complex structure also needs to be charged even if it has not been used for a long time, and is easy to experience a lack of power when in use, which is extremely inconvenient to use.
  • some existing life-saving apparatuses are provided with signal reflection mechanisms, and are the same as that described in the technical solution of the patent application No. 2017213670053 , entitled “Marine Radar Maritime Search and Rescue Apparatus”, including: a life jacket body and small radar corner reflectors, the small radar corner reflectors being evenly arranged in the chest and shoulder of the life jacket body, the small radar corner reflector including a first equilateral triangular vertical metal reflector plate, a second equilateral triangular vertical metal reflector plate, a square horizontal metal reflector plate, and a plastic protective sleeve, the equilateral triangular vertical metal reflector plate I and the equilateral triangular vertical metal reflector plate II being crisscross fixedly connected along a center line, bottom edges of the first equilateral triangular vertical metal reflector plate and the second equilateral triangular vertical metal reflector plate being respectively connected to two diagonal lines of the square horizontal metal reflector plate to form a small quadrangular radar corner
  • the small radar corner reflector of such a structure when applied in the life buoy, has the following defects that: first, the reflection range of the small radar corner reflector is small, so that omission occurs easily during the search; and second, the small radar corner reflector is of a pointed cone shaped structure, is arranged on an outer surface of the life buoy to scratch a person falling into the water easily, and is poor in safety and inconvenient to use.
  • GB 1442428A discloses a dielectric reflector for electric waves and life-saving outfit equipped with the same.
  • the application aims to provide a life buoy, which has the advantages of being simple in structure, scientific in design, convenient to use, and good in safety, and capable of displaying a large image on a radar screen, thereby avoiding search and rescue omission.
  • the reflecting surface of the reflecting piece of the directional radar reflector is a concave surface of a hemispherical structure.
  • the reflecting piece of the omnidirectional radar reflector is a sheet-like metal ring, the reflecting piece of the omnidirectional radar reflector is wound on the Luneburg lens, and an inner surface of the reflecting piece of the omnidirectional radar reflector is the reflecting surface.
  • the central reflection directions L1 of the directional radar reflectors of the group A and the directional radar reflectors of the group B are perpendicular to the datum plane.
  • each omnidirectional radar reflector is provided with a central axis L3; the number of the omnidirectional radar reflectors is four, namely a fifth radar reflector, a sixth radar reflector, a seventh radar reflector, and an eighth radar reflector, and the fifth radar reflector, the sixth radar reflector, the seventh radar reflector, and the eighth radar reflector are arranged around the center of the life buoy body in sequence.
  • the application has the following beneficial effects that: in the application, the life buoy body is provided with the radar reflector composed of the Luneburg lens and the reflecting piece, in the subsequent search and rescue operations, if a person falling into the water carries the life buoy to escape in use, a radar wave sent by a radar transmitter of the search and rescue personnel passes through the Luneburg lens of the radar reflector and is reflected by the reflecting piece, and the radar wave is refracted into the air in a spherically symmetrical manner and amplified, a small target object displays the large image on the radar screen, and the search and rescue personnel discover the person falling into the water easily.
  • a life buoy in the embodiment includes a life buoy body 11.
  • a plurality of radar reflectors are arranged in the life buoy body 11.
  • the plurality of radar reflectors are distributed in an annular array by using a center of the life buoy body 11 as a center.
  • Each radar reflector includes a Luneburg lens 12 and a reflecting piece 13.
  • the Luneburg lens 12 is made of a foamed dielectric material.
  • the reflecting piece 13 is a sheet metal.
  • a reflecting surface is formed on the reflecting piece 13. The reflecting surface of the reflecting piece 13 of each radar reflector is attached to a surface of the Luneburg lens 12.
  • the foamed dielectric material of the Luneburg lens 12 is an existing material, and the foamed dielectric material is the same as that described in the technical solution of the parent application No. 201910867980.8 , applied by the applicant and entitled "Dielectric Material and Dielectric Material Production Method", which will not be elaborated herein.
  • a person falling into the water carries the life buoy to escape, in the subsequent search and rescue operations, if a radar wave emitted by a radar transmitter of the search and rescue personnel passes through the Luneburg lens 12 of the radar reflector and is reflected by the reflecting piece 13, and the radar wave is refracted into the air in a spherically symmetrical manner and amplified, a small target object displays the large image on the radar screen, and the search and rescue personnel discover the person falling into the water easily.
  • the life buoy does not need to be charged when in use, and cannot stab the person falling into the water, so that the application has the advantages of being simple in structure, scientific in design, convenient to use, and good in safety, and capable of displaying the large image on the radar screen, thereby avoiding search and rescue omission.
  • some of the plurality of radar reflectors are directional radar reflectors 14 and others are omnidirectional radar reflectors 15.
  • the omnidirectional radar reflectors 15 and the directional radar reflectors 14 are distributed at intervals.
  • a reflection direction diagram of the radar wave after passing through the directional radar reflector 14 is shown in Fig. 6
  • a reflection direction diagram of the radar wave after passing through the omnidirectional radar reflector 15 is shown in Fig. 7 .
  • each directional radar reflector 14 is provided with a central reflection direction L1.
  • the central reflection direction L1 refers to a virtual directional line that simultaneously passes through a center of sphere of the Luneburg lens 12 of the directional radar reflector 14 and a lowest point of the reflecting surface of the directional radar reflector 14.
  • the center of sphere of the Luneburg lens 12 of each radar reflector is coplanar with the center of the life buoy body 11, and a coplanar surface is called a datum plane.
  • the plurality of directional radar reflectors 14 are classified into two groups, namely a group A 16 and a group B 17.
  • the central reflection directions L1 of the directional radar reflectors 14 belonging to the group A 16 are away from the side of the datum plane, and the central reflection directions L1 of the directional radar reflectors 14 belonging to the group B 17 are away from the side of the datum plane.
  • the central reflection directions L1 of at least one group of the directional radar reflectors 14 are toward the air, so that the radar waves emitted in the air are reflected.
  • the central reflection directions L1 of the directional radar reflectors 14 of the group A 16 and the directional radar reflectors 14 of the group B 17 are perpendicular to the datum plane.
  • the arrangement of the plurality of directional radar reflectors 14 is that the directional radar reflectors 14 of the group A 16 and the directional radar reflector 14 of the group B 17 are distributed at intervals.
  • each omnidirectional radar reflector 15 is provided with a central axis L2.
  • the central axis L2 refers to a central axis of the metal ring shaped reflecting piece 13 of the omnidirectional radar reflector 15.
  • the plurality of omnidirectional radar reflectors 15 are classified into two groups, namely a group C 18 and a group D 19.
  • the central axes L2 of the omnidirectional radar reflectors 15 belonging to the group C 18 are parallel to the datum plane, the central axes L2 of the omnidirectional radar reflectors 15 of the group C 18 are specifically coplanar with the datum plane, and the central axes L2 of the omnidirectional radar reflectors 15 belonging to the group D 19 are perpendicular to the datum plane.
  • the arrangement of the plurality of omnidirectional radar reflectors 15 is that the directional radar reflectors 14 of the group C 18 and the directional radar reflector 14 of the group D 19 are distributed at intervals.
  • each radar reflector is arranged in the life buoy body 11 and is integrated with the life buoy body 11.
  • the life buoy body 11 is also a foamed piece.
  • the radar reflector is first embedded into a recess in a mold configured to make and foam the life buoy body 11, the mold is closed and a foamed material is filled into the radar reflector, and then the first foaming is performed.
  • the radar reflector is fixed to the half side of the foam-formed life buoy body after the first foaming is completed, then the half side of the life buoy body is turned over and placed into another mold configured to make the life buoy body 11, the side with the radar reflector fixed is upward, the mold is closed, the foamed material is filled into the top of the radar reflector, and then the second foaming is performed. After the second foaming is completed, the production of the whole life buoy body 11 is completed, and the radar reflector and the life buoy body 11 are integrally formed.
  • the embodiment differs from Embodiment 1 in that, as shown in Fig. 3 , the diameter of the Luneburg lens 22 of each radar reflector 21 is greater than the cross-sectional diameter of the life buoy body, so that the radar reflectors 21 divide the life buoy body into a plurality of floating segments 23.
  • the radar reflectors 21 are integrally connected together when the life buoy body is formed by foaming. Through the design, the recess is formed between the two adjacent radar reflectors 21, and the recess is clamped in an armpit position of the person falling into the water when in use, so that the life buoy is more convenient to use.
  • the embodiment differs from Embodiment 1 in that the reflection directions of some directional radar reflectors and the reflection directions of some omnidirectional radar reflectors are different.
  • the first radar reflector 311, the second radar reflector 312, the third radar reflector 321, and the fourth radar reflector 322 are arranged around the center of the life buoy body 33 in sequence.
  • the central reflection direction L1 of the first radar reflector 311 and the central reflection direction L1 of the third radar reflector 321 are perpendicular to the datum plane.
  • An included angle ⁇ is formed between the central reflection direction L1 of the second radar reflector 312 and the datum plane, and is 10°-80°.
  • An included angle ⁇ is formed between the central reflection direction L1 of the fourth radar reflector 322 and the datum plane, and is 10°-80°.
  • Each omnidirectional radar reflector is provided with a central axis L3.
  • the number of the omnidirectional radar reflectors is four, namely a fifth radar reflector 34, a sixth radar reflector 35, a seventh radar reflector 36, and an eighth radar reflector 37, and the fifth radar reflector 34, the sixth radar reflector 35, the seventh radar reflector 36, and the eighth radar reflector 37 are arranged around the center of the life buoy body 33 in sequence.
  • the central axis L3 of the fifth radar reflector 34 is perpendicular to the datum plane, an included angle ⁇ is formed between the central axis L3 of the sixth radar reflector 35 and the datum plane, and 10°-80°, the central axis L3 of the seventh radar reflector 36 is parallel to the datum plane, and an included angle ⁇ is formed between the central axis L3 of the eighth radar reflector 37 and the datum plane, and is 10°-80°.
  • the included angle ⁇ , the included angle ⁇ , the included angle ⁇ , and the included angle ⁇ are 45°.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Aerials With Secondary Devices (AREA)

Claims (5)

  1. Rettungsring, umfassend einen Rettungsringkörper (11), dadurch gekennzeichnet, dass im Rettungsringkörper (11) mehrere Radarreflektoren angeordnet sind, die mehreren Radarreflektoren in einem ringförmigen Array um das Zentrum des Rettungsringkörpers (11) verteilt sind, jeder Radarreflektor eine Lüneburg-Linse (12) und ein Reflektionselement (13) umfasst; die Lüneburg-Linse (12) aus einem geschäumten Mediumsmaterial hergestellt ist; an dem Reflektionselement (13) eine Reflektionsfläche ausgebildet ist; die Reflektionsfläche des Reflektionselements (13) jedes Radarreflektors an der Oberfläche der Lüneburg-Linse (12) anliegt; unter den mehreren Radarreflektoren: ein Teil der Radarreflektoren gerichtete Radarreflektoren (14) sind und der andere Teil omnidirektionale Radarreflektoren (15) sind; die omnidirektionalen Radarreflektoren (15) und die gerichteten Radarreflektoren (14) abwechselnd angeordnet sind; die Reflektionsfläche des Reflektionselements (13) des gerichteten Radarreflektors (14) eine konkave Fläche mit halbkugelförmiger Struktur ist; das Reflektionselement (13) des omnidirektionalen Radarreflektors (15) ein blattförmiger Metallring ist, das Reflektionselement (13) des omnidirektionalen Radarreflektors (15) um die Lüneburg-Linse (12) gewickelt ist, und die Innenfläche des Reflektionselements (13) des omnidirektionalen Radarreflektors (15) die Reflektionsfläche ist; die gerichteten Radarreflektoren (14) jeweils eine zentrale Reflektionsrichtung L1 aufweisen; die Kugelzentren der Lüneburg-Linsen (12) der jeweiligen Radarreflektoren und das Zentrum des Rettungsringkörpers (11) in einer gemeinsamen Ebene liegen, wobei diese gemeinsame Ebene als Referenzebene bezeichnet wird; die mehreren gerichteten Radarreflektoren (14) in 2 Gruppen unterteilt sind, nämlich Gruppe A (16) und Gruppe B (17), wobei: die zentrale Reflektionsrichtung L1 der gerichteten Radarreflektoren (14) der Gruppe A (16) von einer Seite der Referenzebene abgewandt ist, während die zentrale Reflektionsrichtung L1 der gerichteten Radarreflektoren (14) der Gruppe B (17) von der anderen Seite der Referenzebene abgewandt ist; wobei: die zentrale Reflektionsrichtung L1 der gerichteten Radarreflektoren (14) der Gruppe A (16) und die zentrale Reflektionsrichtung L1 der gerichteten Radarreflektoren (14) der Gruppe B (17) jeweils senkrecht zur Referenzebene verlaufen; Gruppe A (16) 2 gerichtete Radarreflektoren (14) umfasst, nämlich den ersten Radarreflektor (311) und den zweiten Radarreflektor (312); Gruppe B (17) ebenfalls 2 gerichtete Radarreflektoren (14) umfasst, nämlich den dritten Radarreflektor (321) und den vierten Radarreflektor (322); der erste Radarreflektor (311), der zweite Radarreflektor (312), der dritte Radarreflektor (321) und der vierte Radarreflektor (322) nacheinander um das Zentrum des Rettungsringkörpers (11) angeordnet sind, wobei: die zentrale Reflektionsrichtung L1 des ersten Radarreflektors (311) und die zentrale Reflektionsrichtung L1 des dritten Radarreflektors (321) jeweils senkrecht zur Referenzebene verlaufen; die zentrale Reflektionsrichtung L1 des zweiten Radarreflektors (312) mit der Referenzebene einen Winkel α bildet, wobei der Winkel α zwischen 10° und 80° liegt; die zentrale Reflektionsrichtung L1 des vierten Radarreflektors (322) mit der Referenzebene einen Winkel β bildet, wobei der Winkel β zwischen 10° und 80° liegt.
  2. Rettungsring nach Anspruch 1, dadurch gekennzeichnet, dass die omnidirektionalen Radarreflektoren (15) jeweils eine Zentralachse L2 aufweisen; die mehreren omnidirektionalen Radarreflektoren (15) in zwei Gruppen unterteilt sind, nämlich Gruppe C (18) und Gruppe D (19), wobei: die Zentralachse L2 der omnidirektionalen Radarreflektoren (15) der Gruppe C (18) parallel zur Referenzebene verläuft, und die Zentralachse L2 der omnidirektionalen Radarreflektoren (15) der Gruppe D (19) senkrecht zur Referenzebene verläuft.
  3. Rettungsring nach Anspruch 1, dadurch gekennzeichnet, dass die omnidirektionalen Radarreflektoren (15) jeweils eine Zentralachse L3 aufweisen; die Anzahl der omnidirektionalen Radarreflektoren (15) 4 beträgt, nämlich der fünfte Radarreflektor (34), der sechste Radarreflektor (35), der siebte Radarreflektor (36) und der achte Radarreflektor (37), wobei der fünfte Radarreflektor (34), der sechste Radarreflektor (35), der siebte Radarreflektor (36) und der achte Radarreflektor (37) nacheinander um das Zentrum des Rettungsringkörpers (11) angeordnet sind, wobei: die Zentralachse L3 des fünften Radarreflektors (34) senkrecht zur Referenzebene verläuft; die Zentralachse L3 des sechsten Radarreflektors (35) mit der Referenzebene einen Winkel γ bildet, wobei der Winkel γ zwischen 10° und 80° liegt; die Zentralachse L3 des siebten Radarreflektors (36) parallel zur Referenzebene verläuft; die Zentralachse L3 des achten Radarreflektors (37) mit der Referenzebene einen Winkel θ bildet, wobei der Winkel θ zwischen 10° und 80° liegt.
  4. Rettungsring nach Anspruch 1, dadurch gekennzeichnet, dass die Radarreflektoren jeweils im Rettungsringkörper (11) angeordnet und einstückig mit dem Rettungsringkörper (11) ausgeformt sind.
  5. Rettungsring nach Anspruch 1, dadurch gekennzeichnet, dass der Durchmesser der Lüneburg-Linse (12) des jeweiligen Radarreflektors größer ist als der Durchmesser des Querschnitts des Rettungsringkörpers (11), sodass die Radarreflektoren den Rettungsringkörper (11) in mehrere Schwimmabschnitte (23) unterteilen.
EP21899814.4A 2020-12-04 2021-11-09 Rettungsboje Active EP4257475B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202011391230.7A CN112407196B (zh) 2020-12-04 2020-12-04 一种救生圈
PCT/CN2021/129458 WO2022116780A1 (zh) 2020-12-04 2021-11-09 一种救生圈

Publications (4)

Publication Number Publication Date
EP4257475A1 EP4257475A1 (de) 2023-10-11
EP4257475A4 EP4257475A4 (de) 2024-03-13
EP4257475B1 true EP4257475B1 (de) 2025-10-01
EP4257475C0 EP4257475C0 (de) 2025-10-01

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ID=74829212

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21899814.4A Active EP4257475B1 (de) 2020-12-04 2021-11-09 Rettungsboje

Country Status (3)

Country Link
EP (1) EP4257475B1 (de)
CN (1) CN112407196B (de)
WO (1) WO2022116780A1 (de)

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CN112407196B (zh) * 2020-12-04 2022-05-31 广东福顺天际通信有限公司 一种救生圈

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CN110615909B (zh) * 2019-09-18 2021-01-15 广东福顺天际通信有限公司 介质材料及介质材料生产方法
CN112407196B (zh) * 2020-12-04 2022-05-31 广东福顺天际通信有限公司 一种救生圈

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EP4257475A1 (de) 2023-10-11
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WO2022116780A1 (zh) 2022-06-09
CN112407196A (zh) 2021-02-26

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