WO2002055156A1 - Device for detection and automatic alarm of snow accidents - Google Patents

Device for detection and automatic alarm of snow accidents

Info

Publication number
WO2002055156A1
WO2002055156A1 PCT/FR2002/000089 FR0200089W WO02055156A1 WO 2002055156 A1 WO2002055156 A1 WO 2002055156A1 FR 0200089 W FR0200089 W FR 0200089W WO 02055156 A1 WO02055156 A1 WO 02055156A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
device
detection
means
signal
person
Prior art date
Application number
PCT/FR2002/000089
Other languages
French (fr)
Inventor
Daniel Broche
Original Assignee
France Telecom
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

Links

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal operating condition and not elsewhere provided for
    • G08B21/02Alarms for ensuring the safety of persons
    • G08B21/04Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons
    • G08B21/0407Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons based on behaviour analysis
    • G08B21/0415Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons based on behaviour analysis detecting absence of activity per se
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B29/00Apparatus for mountaineering
    • A63B29/02Mountain guy-ropes or accessories, e.g. avalanche ropes; Means for indicating the location of accidentally buried, e.g. snow-buried, persons
    • A63B29/021Means for indicating the location of accidentally buried, e.g. snow-buried, persons
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal operating condition and not elsewhere provided for
    • G08B21/02Alarms for ensuring the safety of persons
    • G08B21/04Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons
    • G08B21/0438Sensor means for detecting
    • G08B21/0446Sensor means for detecting worn on the body to detect changes of posture, e.g. a fall, inclination, acceleration, gait
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B29/00Apparatus for mountaineering
    • A63B29/02Mountain guy-ropes or accessories, e.g. avalanche ropes; Means for indicating the location of accidentally buried, e.g. snow-buried, persons
    • A63B29/021Means for indicating the location of accidentally buried, e.g. snow-buried, persons
    • A63B2029/022Means for indicating the location of accidentally buried, e.g. snow-buried, persons with means for automatically activating signal means in case of an avalanche

Abstract

The invention concerns a device for the detection and automatic alarm of accidents involving people in snowy areas. The invention is characterised in that the device comprises: a detector (11) of the movement of a person wearing said device; a detector (121, 122) of the presence of snow immediately proximate to said person, means (14) for transmitting a detection and alarm signal. The invention is useful for rescuing people caught in avalanches.

Description

DETECTION DEVICE AND "ALERT AUTO ACCIDENT

OF SNOW

The present invention relates to a detection and automatic warning accidents to people moving on snowy sites.

The invention finds a particularly advantageous application in the field of assistance and relief to the victims of avalanches.

Every year many people die buried under avalanches. If these people, the vast majority of skiers practicing off-piste skiing, sometimes perish as they are swept away by the avalanche, they often die of cold and asphyxiation, retained by a snow several meters 'thickness.

It is understandable in these conditions the critical importance of rapid intervention in emergency rescue accident victims. For example, statistical studies have shown that if rescuers involved in the first twenty minutes of the accident, the chances of survival are 80% of cases, while beyond thirty minute levels drop less than 50%.

Now if the avalanche occurs in an unsupervised area, rescue workers are generally not informed soon enough. On the other hand, it is rare that a witness is on site to provide accurate information as to the place of the accident. All these difficulties combine to slow down the intervention of emergency, however, crucial in these situations, as we have seen above.

There are currently many victims of avalanche detection devices as beacons to question Search for Avalanche Victims. This system consists of a transceiver operating at a frequency of 457 kHz. By placing this unit transmitter position, the wearer can be located by the rescue. The same device is used in receiver mode in order to participate in search of buried victims. The transceiver system is very common among tourists because of its high price and its use limited to a short period, the winter holidays. The team mostly professionals Another system, known Recco, is to equip the emission dipoles skiers clothing for issue under electromagnetic light, around 1, 8 GHz. This device, the skier sometimes wears unknowingly is very cheap, but is very reliable and requires an investment of the ski resort. Moreover, it completely removes responsibility skiers.

Anyway, whatever the system used, the warning time is usually too high. Victims have only very low chances of survival if their companions are not able to rescue themselves. Also, if all members of the same group are caught in an avalanche, their salvation depends only on the presence of witnesses in the area, which is rare when the off-piste skiing is practiced. That's why accidents where all people in a group are buried almost always end tragically, for lack of a detection means and appropriate warning.

Thus the technical problem to be solved by the object of the present invention is specifically to provide a detection and automatic warning device for accidents to people moving on snowy sites, which, compared to the known device, allow to raise the alarm over early, thus allowing intervention much faster relief and significantly increasing the chances of survival of victims.

The solution to the technical problem according to the present invention, in that the device comprises: - a motion detector of a person carrying said device,

- a presence of snow detector in the immediate vicinity of said person,

- means for transmitting a signal detection and alert.

Thus, by combining the information from the motion detector and the presence of snow detector, the device according to the invention is able to conclude that the carrier is in the snow, or at least partially buried, and unable of moving and / or unconscious. In this case, the detection signal and warning is issued by said device emitting means. In order to increase the effectiveness of the device, object of the invention, enabling rescuers to reach more quickly and surely an injured person, it is anticipated that said device comprises means for locating said person. According to a first embodiment of the invention, said detection signal and warning is a radio signal transmitted toward a rescue center. In this way, the rescue teams are informed very early, immediately after the occurrence of an accident, whereas until now they were alerted by a potential witness of the scene or a person stating that a his family did not return from his mountain trip.

According to a second embodiment of the invention, said detection signal and warning is a control signal of a person's survival means carrying said device. In this vein, one can consider for example the start of a heating coveralls skier holder detection and automatic warning, object of the invention, and, more generally, of all clothing or heating accessories (shoes, gloves, etc.).

also be noted that the invention is not limited to the avalanche situations, but it is also applicable to all types of accidents in snowy sites that require rapid relief, such as a fracture a member causing a loss of knowledge of the victim.

In addition, a number of improvements to the device according to the invention are provided.

A first improvement consists in that said device comprises a Human alerting means carrying said device. For example, said warning means is a vibrator. This advantageous arrangement allows the wearer of the device to be notified of its start and possibly to intervene in case of false alarms by performing movements so that the device does not conclude with immobilization or loss of consciousness. Similarly, the carrier may alerted to the operation device transmitting means if it has a manual control. Conversely, when, in a second development, it comprises a manual override of said transmitting means, the detection device and automatic alarm may be turned on by an avalanche witness or other accident triggering its own device s it has a doubt the equipment of the victims or the operation thereof.

The following description in the accompanying drawings, given by way of non-limiting example, explains in what the invention is and how it can be achieved.

Figure 1 is a logic diagram showing the operation of a detection device and automatic alert, object of the invention.

Figure 2 is a block diagram of a device operating in accordance with Figure 1.

FIG 3 is a block diagram of apparatus embodying the features of Figures 2 and 3. The logic diagram of Figure 1 shows the operation of a detection device and automatic alert occurring to persons moving at sites snow, including glaciers, device wherein it is determined by means of a motion sensor if a person carrying said device is in a situation of immobility or not. Similarly, a presence detector snow near this person shows whether it is immobilized in the snow. An alert signal is supplied by the device to that person, and the lack of response to this alert within given leads to the conclusion that the person is not able to move due to injury or she lost consciousness. The combination of all these data, optionally added to those from physiological sensors (temperature, pulse, etc.), allows the detection and alert system, object of the invention to determine with near certainty that the wearer of said device is caught in an avalanche or in a state of unconsciousness in need of help. The diagnosis of an accident being thus established, means for transmitting a detection signal and warning are then set automatically implemented. As shown in Figure 2, this signal may have several functions. On the one hand, as a means of information, said detection signal and alert is a radio signal toward a relief center, with the advantage that rescue teams were prevented from very early of the accident and therefore have the opportunity to arrive early at the site, increasing the effectiveness of their intervention. This efficiency is further enhanced when, as is discussed below, the device of the invention includes locating means of the casualty. On the other hand, as a vector of direct assistance to victims, said detection signal and alert is a control signal of a person's survival means carrying the device according to the invention, such as a survival suit.

Depending on the particular embodiment of Figure 3, the device 1 object of the invention is built around a microcontroller 10 which, on the one hand, addresses a number of information received from external bodies, and on the other hand, develops and delivers detection and warning signals.

In particular, the microcontroller 10 receives information relating to the bearer of the movement of the device by means of an accelerometer 11. Similarly, information on the presence of nearby Snow said carrier are provided by at least one module consisting of an emitter 121 and a detector 122 infra-red, the presence of snow is determined by the infra-red reflected radiation rate. Other physiological data from sensors (not shown) may also be transmitted to the microcontroller 10.

If all this information is indicative of a person immobilized in the snow, the microcontroller controls, via interface 13, means 14 for transmitting a detection signal and alert. Accordance with Figure 3, these means 14 consist of a radio communication system comprising a radio transmitter 141 adapted, in a first step, actuating means 142 to alert the person equipped with the device 1. This means 142 warning is for example a vibrator. Thus, the person is informed that the device 1 has detected an accident situation and can react during a given period, or by initiating a manual control 17 warning canceled, either by moving so that the accelerometer 11 provide the microcontroller 10 a movement detection signal and suspends the alert. If the time given to respond is exceeded, means 143 are operated alert to prevent a rescue center and / or to trigger a survival of the device wearer. Advantageously, a victim of localization signal can be sent to the center of relief along with the detection signal and warning to enable rescuers to increase the speed of their response. This location is effected by any terrestrial or satellite system such as GPS ( "Global Positioning System") or a cellular telecommunications network. The radiocommunication system 14 may be a public telephone network or a private communication network such as that of a ski resort.

Finally, Figure 3 shows the presence of a manual override 16 of the means 14 for transmission that can be implemented by anyone witnessing an avalanche eg.

Claims

1. A device for detection and automatic alert of accidents to people moving on snow site, characterized in that the device comprises: - a detector (11) of movement of a person carrying said device,
- a detector (121, 122) of the presence of snow in the immediate vicinity of said person,
- means (14) for transmitting a detection signal and alert.
2. Device according to Claim 1, characterized in that it comprises locating means of said person.
3. Device according to one of claims 1 or 2, characterized in that said detection signal and warning is a radio signal transmitted toward a rescue center.
4. Device according to any one of claims 1 to 3, characterized in that said detection signal and warning is a control signal of a person's survival means carrying said device.
5. Device according to any one of claims 1 to 4, characterized in that said motion detector comprises at least one accelerometer (11).
6. Device according to any one of claims 1 to 5, characterized in that said presence of snow detector consists of at least one transmitter (121) and a receiver (122) infrared.
7. Device according to any one of claims 1 to 6, characterized in that it comprises means (142) to alert the person carrying said device.
8. Device according to any one of claims 1 to 7, characterized in that it comprises a manual override (16) of said transmission means.
9. Device according to any one of claims 1 to 8, characterized in that it comprises a control (17) warning cancellation.
10. Device according to any one of claims 1 to 9, characterized in that it comprises physiological data sensors of said person.
PCT/FR2002/000089 2001-01-11 2002-01-10 Device for detection and automatic alarm of snow accidents WO2002055156A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR01/00348 2001-01-11
FR0100348A FR2819335B1 (en) 2001-01-11 2001-01-11 Device detection and automatic accident alert snow

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20020710966 EP1349616A1 (en) 2001-01-11 2002-01-10 Device for detection and automatic alarm of snow accidents

Publications (1)

Publication Number Publication Date
WO2002055156A1 true true WO2002055156A1 (en) 2002-07-18

Family

ID=8858711

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2002/000089 WO2002055156A1 (en) 2001-01-11 2002-01-10 Device for detection and automatic alarm of snow accidents

Country Status (3)

Country Link
EP (1) EP1349616A1 (en)
FR (1) FR2819335B1 (en)
WO (1) WO2002055156A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1785168A1 (en) * 2005-11-14 2007-05-16 Ascom (Schweiz) AG Search device
EP2907552A1 (en) 2014-02-14 2015-08-19 Ortovox Sportartikel GmbH Detector and method for operating a detector

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2555665A1 (en) * 1975-12-11 1977-06-23 Anton Dr Ing Richtscheid The marking device of buried bodies, in particular persons lawinenverschuetteten
US5652570A (en) * 1994-05-19 1997-07-29 Lepkofker; Robert Individual location system
FR2783607A1 (en) * 1998-09-17 2000-03-24 Sagem System for locating person buried in avalanche, includes numerous detecting stations and utilizes portable hand held locating equipment and radio transmitters carried by skiers
DE19854047A1 (en) * 1998-11-24 2000-05-31 Peter Langbein Mobile monitoring of vehicle drivers involves emitting visual/acoustic signals in event of emergency, making automatic, repeated emergency calls to control center if not cancelled by driver
US6104295A (en) * 1998-07-20 2000-08-15 Versus Technology, Inc. Electronic band tag and method of storing ID information therein

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2555665A1 (en) * 1975-12-11 1977-06-23 Anton Dr Ing Richtscheid The marking device of buried bodies, in particular persons lawinenverschuetteten
US5652570A (en) * 1994-05-19 1997-07-29 Lepkofker; Robert Individual location system
US6104295A (en) * 1998-07-20 2000-08-15 Versus Technology, Inc. Electronic band tag and method of storing ID information therein
FR2783607A1 (en) * 1998-09-17 2000-03-24 Sagem System for locating person buried in avalanche, includes numerous detecting stations and utilizes portable hand held locating equipment and radio transmitters carried by skiers
DE19854047A1 (en) * 1998-11-24 2000-05-31 Peter Langbein Mobile monitoring of vehicle drivers involves emitting visual/acoustic signals in event of emergency, making automatic, repeated emergency calls to control center if not cancelled by driver

Also Published As

Publication number Publication date Type
EP1349616A1 (en) 2003-10-08 application
FR2819335B1 (en) 2004-05-28 grant
FR2819335A1 (en) 2002-07-12 application

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