EP2701130A1 - System zum Schutz vor Ertrinken - Google Patents

System zum Schutz vor Ertrinken Download PDF

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Publication number
EP2701130A1
EP2701130A1 EP13382309.6A EP13382309A EP2701130A1 EP 2701130 A1 EP2701130 A1 EP 2701130A1 EP 13382309 A EP13382309 A EP 13382309A EP 2701130 A1 EP2701130 A1 EP 2701130A1
Authority
EP
European Patent Office
Prior art keywords
unit
emitting
emitting units
user
alarm signal
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.)
Withdrawn
Application number
EP13382309.6A
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English (en)
French (fr)
Inventor
José Alejandro Regojo Zapata
Oscar Iglesias Fernández
Maite Doviso Domínguez
Gerardo Suárez Meijide
Juan Ramón Güell Cancela
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.)
Safety Cap XXI SL
Original Assignee
Safety Cap XXI SL
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 Safety Cap XXI SL filed Critical Safety Cap XXI SL
Publication of EP2701130A1 publication Critical patent/EP2701130A1/de
Withdrawn legal-status Critical Current

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    • 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

  • the present invention describes a drowning prevention system specially intended to be used in public pools for the surveillance of children, elderly, disabled persons and people who do not know how to swim or can not swim.
  • the current drowning prevention devices have significant disadvantages that require the development of a new prevention system that is simple, economical, and effective.
  • Some of the drowning prevention systems known have at least an element floating on water, resulting in risk of accidents or vandalism.
  • Other systems make necessary the installation of cameras or other fixed items in the pool so it is necessary to empty the pool for both the installation of cameras and its maintenance, and this implies high costs and disruption in customer service. This happens for example in the system described in document US5907281 .
  • Systems allowing the detection of physiological changes in the swimmer such as the pulse, the chest expansion and contraction, or the blood oxygen levels such as for example the document US6111510 are also known. Some systems are also based on cameras that analyze movements of bodies at the bottom of the pool as an indicator of possible drowning. In some systems are used cameras to analyze images and draw conclusions from them related to the behavior of the swimmers to identify possible drowning and other systems comprise devices carried by the swimmer that detect drowning situations based on changes in the movements of the swimmer. Finally there are systems which include devices with an alarm button such as the patent US2004/0095248 that sent an alarm signal when the button is pressed.
  • Drowning is defined as death due to asphyxia by submersion in water or other liquid.
  • a near-drowning situation represents an episode of immersion of sufficient severity to require medical care and able to cause irreversible brain damage.
  • Drowning is the second cause of damage or unintentional death among children under 14 years, after traffic accidents. Studies show that, at least, 10% of children under 5 years have lived a situation of high risk of drowning. In the majority of cases, children in difficulties was unable to emit assistance sounds because he/she was already unconscious and in drowning process.
  • a lifeguard although he/she is in warning provision, can only control exhaustively a part of a swimming pool and even in that part, a person can be immersed under the surface without being detected by the lifeguard. Once a person is under the surface, it is difficult that a lifeguard can detect him/her at a glance and the problem is intensified if we take into account that drowning and especially drowning of children occur, in most cases, quickly and quietly, in a matter of seconds.
  • the main object of this invention is the preservation of human life through the reduction or elimination of drowning in swimming areas, using a relatively simple and inexpensive apparatus that allows parents, caregivers, lifeguards or potential rescuers, to be aware of a dangerous situation, before a fatal outcome may take place.
  • the drowning prevention system of the present invention allows improving the safety of bathers in a pool. It is specially intended to be used with children, elderly, disabled persons and people who can not swim, and to be installed in public or private pools for public use in which a single lifeguard must monitor to many people at the same time.
  • the system includes a safety harness, which are belts surrounding the swimmer's head, on his/her swim cap, and that accommodates an emitting unit which is completely watertight, battery-operated and comprising a radio emitter.
  • a safety harness which are belts surrounding the swimmer's head, on his/her swim cap, and that accommodates an emitting unit which is completely watertight, battery-operated and comprising a radio emitter.
  • said safety harness has a plastic safety lock.
  • the system comprises an emitter registration unit comprising a magnet and a CPU unit.
  • the magnet allows the activation of the emitting unit before the entry of the user in the water.
  • CPU unit receives and processes all the signals of emitting units, and is responsible for generating the necessary alarm signals.
  • the user emitting unit is deactivated when it comes out of the water and is approaching the emitter registration unit to cancel it by the magnet of said emitter registration unit.
  • a communications unit which is responsible for collecting and sending the registration, cancellation, and incident information to the computer system.
  • the system comprises an antenna placed on the pool, which receives the signal from the harness emitters, it sent them to the CPU and is placed high enough so that the user may not deactivate the emitting unit when he/she passes through the vicinity of the registration unit.
  • this includes a software to display on a screen the system status, allowing the administrator knowing the status of the alarms, consulting records and assigning per screen portable emitting units to different types of alarms. Moreover, it allows the access to this data from any computer connected to the internet.
  • the antenna is the receiver unit that is placed in a place and at a height inaccessible to an unauthorized person.
  • This receiver unit is responsible for receiving radio signals generated by the emitting units and has visual and audible elements with which sends a alert signal at the moment in which detects that one of the emitting units ceases to send the signal for a certain pre-set time associated with a possible situation of drowning.
  • the system also comprises a secondary alarm unit, pointing to the exit of the locker-rooms.
  • This secondary alarm is in the system to avoid the eventuality that the person wearing the safety harness leaves the pool and enters the locker-room with this device.
  • This secondary alarm signal is especially intended for cases in which persons who carry the safety harness are children.
  • the system comprises antennas and local alarm devices, with less presence and intensity than those previously described, in the exit towards the locker-rooms to warn to the pool guard of this anomalous without it can be confused with an alarm by drowning in the pool.
  • This system can also be installed on a beach, river, lake, etc., in which case the antennas are installed in sea pontoons. It is useful for example in situations where children are in 'summer schools' and taken them to the beach for some activities, which are usually carried out on the shore.
  • the drowning prevention system of the type of those which emit an alarm signal when they detect that a user is submerged in water for a long time comprising at least an radio emitting unit (1) positioned in a safety harness (2) that is placed on the user's head.
  • the system also comprises an emitter registration unit (3) that controls the activation of the emitting units (1) and has a CPU unit (4) that receives and processes the signals of the emitting units (1), emitting an audible and visual alarm signal (9) when the emitter signal is not detected from the emitting unit (1) and this occurs when the emitter is submerged.
  • a communications unit (5) that collects and sends information about registrations and cancellations of the emitting units (1) and system incidences is also part of system of the invention.
  • the safety harness (2) is formed by belts surrounding the swimmer's head, as shown in the figure 1 , on the user's swim cap.
  • the emitting unit (1) which is completely watertight, battery-operated and comprising a radio emitter.
  • said safety harness (2) has, in a embodiment of the invention, a safety lock (8).
  • the system of the invention comprises in a preferred embodiment a secondary alarm unit (6) of exit of the swimming pool enclosure and which is connected with antennas (7) detecting the pass of an emitting unit (1) through the exit of the enclosure and emitting a secondary alarm signal.
  • This secondary alarm system is designed in order to avoid in case of a user leaves the pool enclosure that the drowning alarm is triggered when the user is no longer in the enclosure. In this way the lifeguard will detect with a secondary alarm when a user wants to leave the enclosure with the safety harness (2) still placed so that he/she can go to disable the corresponding emitter element (1) and remove the safety harness (2) to the user which wears it.
  • the system has different signs to indicate the drowning and for the exit of a user of the enclosure there is no danger of confusing the signals and creating unnecessary panic situations triggering an alarm by someone who is not even in the water.
  • CPU unit (4) is associated with a web page to which sends information and having restricted access, wherein the status of the alarms is displayed, the records are consulted and emitting units (1) are assigned to different types of alarm.
  • the activation and deactivation of the emitting units (1) is by a magnet located in the emitter registration unit (3).
  • the system can be managed via the Internet.
  • the emitter unit incorporates a communication protocol via radio in a multipoint mode, to avoid interferences with the typical noises of the pool environments and which allows optimizing the battery consumption.
  • the emitting unit (1) Once the emitting unit (1) has been activated in the emitter registration unit (3) is continually emitting a signal that is received by the CPU unit (4) through the antenna.
  • the emitting unit (1) When the user who wears the safety harness (2) with the emitting unit (1) is submerged in the water or takes a dip, the emitting unit (1) emits signal but said signal does not reach the antenna and therefore neither the antenna nor the CPU unit (4) receive the signal.
  • the system checks the duration of this lack of signal by the emitting unit (1) of the user to see if it exceeds or not a default time, previously chosen by the lifeguard of the pool or by the owners of the drowning prevention system. If the duration of the change in the signal does not exceed the predetermined time as dangerous situation the alarm signal is not generated, but if it exceeds said default time then the visual and audible alarm signals are activated.
  • the system of the present invention improves the safety of the pool, either for the swimming area or the bath area. Also the use of this system allows increasing the number of users in a pool so the managers of pools can manage them with greater efficiency and operability.
  • the emitting unit (1) has a microcontroller with very low consumption including a radio transceiver configured to work in a band of 868 MHz and a custom software which configures the microcontroller to send coded data frames, with the number of module, state of the battery, C.R.C. (cyclic redundancy code) and other data of interest, with certain power and cadence.
  • the emitting unit (1) has a lithium battery to power the assembly, a radio antenna and a magnetic sensor that allows activating or deactivating the microcontroller through a magnet. When the microcontroller is inactive stops emitting frames, and goes into the 'very low consumption' mode (less than one millionth of ampere).
  • the CPU unit (4) which is the manager of the whole installation, incorporates a powerful microcontroller, an LCD display of 4 lines x 20 characters, with four keys, which acts as a man-machine interface and an LED diode array numbered '01' to '40', serving to inform the user of the different status of the emitting units ('inactive', 'in service' ('active'), 'alarm'), identifying each one of them by the bright number of front panel. It also includes a alarm acknowledgement pushbutton, and a powerful magnet that serves to activate or deactivate the emitting units.
  • the controller used in this embodiment has two communications ports. One of them is used to interconnect with the receiver units (1), and the other to communicate with the outside (computer, internet, etc.).
  • the whole is mounted in a watertight surface box with a power supply 230 Vac/24 Vdc, supplying a stabilized voltage to all the elements and which allows its installation near the use areas.
  • a software developed for the application, installed on the micro-controller is responsible for controlling the different peripherals (display, keyboard, matrix, serial ports, etc.) and analyzing the frames sent by the emitting units, accurately controlling the cadence of these and its structure.
  • the controller manages the automatic Cancellations and Registrations received from the emitter registration unit (3), when the emitting unit (1) of a user is 'active' or 'inactive', controlling the time between frames, to determine if an alarm condition occurs.
  • the CPU unit (4) is prepared to operate fully autonomously, incorporates a communication protocol with a series of commands which sent by the communications port available, allow the connection with the outside, to a computer or the internet, an application installed on a local or remote computer, can enable or disable the emitting units, and consult its status, allowing a statistical control of the operation.
  • the CPU unit (4) comprises the receiving unit, which as the emitting unit (1), incorporates a radio transceiver in the same band, and a micro-controller with a custom software, which stores the data frames received without errors, to forward them to the CPU unit (4) when it is required.
  • This structure allows facilities with one or more receiver units (1), depending on the coverage and size of the enclosure.
  • an anti-theft system that detects such access to a prohibited area and activates a small built-in siren when this happens. It incorporates a receiver tuned to the same radio band as emitting units, with the suitable antenna, to avoid false alarms, and a micro-controller that checks the consistency of the data received, activating the siren when the identification is positive.
  • said anti-theft unit is mounted in a surface box with a 230 VAC power supply for connecting directly to the mains.

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Alarm Devices (AREA)
  • Alarm Systems (AREA)
EP13382309.6A 2012-08-24 2013-07-30 System zum Schutz vor Ertrinken Withdrawn EP2701130A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES201231328A ES2444295B1 (es) 2012-08-24 2012-08-24 Sistema de prevención de ahogamientos

Publications (1)

Publication Number Publication Date
EP2701130A1 true EP2701130A1 (de) 2014-02-26

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EP13382309.6A Withdrawn EP2701130A1 (de) 2012-08-24 2013-07-30 System zum Schutz vor Ertrinken

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ES (1) ES2444295B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016023138A1 (zh) * 2014-08-11 2016-02-18 杨秉勋 一种改善水下电磁波通讯的溺水求救装置
CN111429697A (zh) * 2020-04-29 2020-07-17 广东得胜电子有限公司 一种安全防溺水装置及其检测方法
US10943456B1 (en) 2019-09-30 2021-03-09 International Business Machines Corporation Virtual safety guardian

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5907281A (en) 1998-05-05 1999-05-25 Johnson Engineering Corporation Swimmer location monitor
US6111510A (en) 1999-09-15 2000-08-29 Coffelt, Jr.; Louis Arthur Method of drowning detection
FR2847059A1 (fr) * 2002-11-13 2004-05-14 Ecri Electronic Systeme de securite pour des personnes susceptibles d'etre immergees
US20040095248A1 (en) 2002-11-15 2004-05-20 Mandel Yaron Nahum Drowning alarm
WO2004086327A1 (en) 2003-03-27 2004-10-07 Qinetiq Limited Swimming safety system
EP1492069A1 (de) 2003-06-26 2004-12-29 Jean-Pierre Borer Vorrichtung zur Ergänzung der Schwimmbadüberwachung
US20070132578A1 (en) * 2005-12-14 2007-06-14 Powell Michael J Monitoring system and method
EP1950720A2 (de) 2007-01-18 2008-07-30 KaiNan High School of Commerce and Industry Vorrichtung zur Verhinderung von oder Warnung vor Überschwemmungen
US20100182151A1 (en) * 2009-01-21 2010-07-22 Ping-Hsun Yang Life Saving and Warning System for a Swimming Pool

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060061469A1 (en) * 2004-09-21 2006-03-23 Skyfence Inc. Positioning system that uses signals from a point source
EP1927958A1 (de) * 2006-12-01 2008-06-04 SenzAthlon GmbH Mobile Vorrichtung für einen Schwimmer
US20080278338A1 (en) * 2007-05-10 2008-11-13 Jordan Michael Krell Drowning alert system
US8022830B1 (en) * 2010-06-10 2011-09-20 Ping-Hsun Yang Lifeguard alarm system for a swimming pool

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5907281A (en) 1998-05-05 1999-05-25 Johnson Engineering Corporation Swimmer location monitor
US6111510A (en) 1999-09-15 2000-08-29 Coffelt, Jr.; Louis Arthur Method of drowning detection
FR2847059A1 (fr) * 2002-11-13 2004-05-14 Ecri Electronic Systeme de securite pour des personnes susceptibles d'etre immergees
US20040095248A1 (en) 2002-11-15 2004-05-20 Mandel Yaron Nahum Drowning alarm
WO2004086327A1 (en) 2003-03-27 2004-10-07 Qinetiq Limited Swimming safety system
EP1492069A1 (de) 2003-06-26 2004-12-29 Jean-Pierre Borer Vorrichtung zur Ergänzung der Schwimmbadüberwachung
US20070132578A1 (en) * 2005-12-14 2007-06-14 Powell Michael J Monitoring system and method
EP1950720A2 (de) 2007-01-18 2008-07-30 KaiNan High School of Commerce and Industry Vorrichtung zur Verhinderung von oder Warnung vor Überschwemmungen
US20100182151A1 (en) * 2009-01-21 2010-07-22 Ping-Hsun Yang Life Saving and Warning System for a Swimming Pool

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016023138A1 (zh) * 2014-08-11 2016-02-18 杨秉勋 一种改善水下电磁波通讯的溺水求救装置
US10943456B1 (en) 2019-09-30 2021-03-09 International Business Machines Corporation Virtual safety guardian
CN111429697A (zh) * 2020-04-29 2020-07-17 广东得胜电子有限公司 一种安全防溺水装置及其检测方法

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Publication number Publication date
ES2444295A1 (es) 2014-02-24
ES2444295B1 (es) 2014-12-09

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