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EP3812014B1 - Device for alerting about an absence of belay for a climber - Google Patents

Device for alerting about an absence of belay for a climber Download PDF

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Publication number
EP3812014B1
EP3812014B1 EP20202687.8A EP20202687A EP3812014B1 EP 3812014 B1 EP3812014 B1 EP 3812014B1 EP 20202687 A EP20202687 A EP 20202687A EP 3812014 B1 EP3812014 B1 EP 3812014B1
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EP
European Patent Office
Prior art keywords
link
ref
range
reference plane
horizontal reference
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EP20202687.8A
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German (de)
French (fr)
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EP3812014A1 (en
Inventor
Philippe PEAN
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Individual
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Individual
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
    • A62B35/0006—Harnesses; Accessories therefor
    • A62B35/0025—Details and accessories

Definitions

  • the invention relates to the technical field of devices for warning of the absence of belaying of a climber equipped with a harness to which a link is attached, the link being intended to be held by a belaying system.
  • the invention finds its application in particular in the surveillance of a climbing room and the safety of climbers.
  • a known state-of-the-art device in particular the “Safe Gâte” product from Techtopia, comprises sensors arranged horizontally on the climbing wall 3 metres above the ground. The sensors make it possible to detect the absence of belaying by the climber when the latter exceeds the horizontal line formed by the sensors.
  • US 2018/207455 A1 discloses a retractable rope coupled with an alert device indicating entry into a dangerous area for a worker at altitude.
  • JP 2017 093515 A discloses a device for securing a worker at altitude.
  • the invention aims to remedy in whole or in part the aforementioned drawbacks. To this end, the invention relates to an alert device as defined in the appended claims.
  • the link In the absence of belaying, the link is not held by the belaying system and therefore has a negative inclination relative to the horizontal reference plane. In the event of belay, the link is held by the belay system and has a positive inclination relative to the horizontal reference plane.
  • the alert signal is sent when the climber exceeds a predetermined altitude, and when the link is outside the range of positive inclinations, meaning the absence of belaying. In other words, a double condition must be respected.
  • the microprocessor is configured to send the alert signal if and only if the barometric pressure variation exceeds the predetermined threshold and the detection signal is in the second state.
  • Such a device according to the invention equips the climber, and not the climbing wall as in the prior art, which makes it possible to avoid the costs of installing sensors on each climbing wall in the room.
  • the device according to the invention may comprise one or more of the following characteristics.
  • the detection means are configured to detect the movement of the link in a solid angle extending above the horizontal reference plane, around an axis defined by the final positive inclination of the link.
  • solid angle we mean a quantity defining the portion of space delimited by the center of a sphere and a part of the surface of the sphere (surface element noted dS) according to the ratio dS/R 2 , where R is the radius of the sphere.
  • an advantage provided is to be able to reliably detect the final positive inclination of the link with an authorized tolerance in the event of untimely movement of the link.
  • the final positive inclination of the link is vertical, and the axis is the normal to the horizontal reference plane.
  • the solid angle delimits a cone having a half-angle at the apex between 35° and 55°, preferably between 40° and 50°, more preferably equal to 45°.
  • an advantage provided is to be able to reliably detect the final positive inclination of the link with a reasonable tolerance allowed in the event of untimely movement of the link.
  • the solid angle has an axis of revolution following the axis defined by the final positive inclination of the link.
  • an advantage provided is to be able to reliably detect the final positive inclination of the link with an allowed tolerance all around its axis.
  • the detection means comprise a tilt sensor, preferably a ball sensor.
  • the microprocessor is configured to calculate the variation in barometric pressure at a frequency greater than or equal to 2 Hz.
  • an advantage provided is to be able to reliably and sufficiently quickly determine the exceeding of the predetermined threshold of the barometric pressure variation in order to avoid the climber's altitude being too high when the alert signal is sent.
  • the device comprises light and/or sound alert means, configured to be activated when the microprocessor sends the alert signal.
  • one advantage provided is the effectiveness of the alert, both for the climber and a supervisor of the climbing room.
  • the predetermined threshold of the barometric pressure variation corresponds to a variation in altitude of the climber of between 2 m and 2.5 m.
  • one benefit provided is to reduce the risks for the climber when the warning signal is sent.
  • the pressure sensor has a sensitivity greater than or equal to 1 mbar.
  • an advantage provided is to be able to determine a corresponding altitude variation of the climber with sufficient precision.
  • the invention also relates to an alert assembly as defined in the appended claims.
  • the invention also relates to an alert method as defined in the appended claims.
  • the device may comprise link 3, the detection means 7 being fixed to link 3.
  • the device is partially illustrated in figure 1 .
  • the enclosure 5 may be made in the form of a housing.
  • the housing may be made of a plastic material.
  • the enclosure 5 may be a harness pocket.
  • the enclosure 5 delimits a space that is not hermetically sealed in the sense that the enclosure 5 must allow ambient air to penetrate so that the pressure sensor 6 can measure the barometric pressure.
  • the pressure sensor 6 advantageously has a sensitivity greater than or equal to 1 mbar.
  • the pressure sensor 6 may be the BMP380 sensor from the company Bosch Sensortec, or the MS5611-01BA03 sensor from the company MEAS Switzlerland.
  • the device may comprise at least one pressure sensor 6, arranged in the enclosure 5 to measure a barometric pressure.
  • the device may comprise an additional pressure sensor 6, arranged in the enclosure 5 to measure a barometric pressure.
  • the additional pressure sensor 6 makes it possible, by redundancy, to improve the reliability of the measurement of the barometric pressure.
  • the detection means 7 can be fixed to the link 3 using an adhesive, a strap (eg rubber), or a fixing collar.
  • the detection means 7 are advantageously configured to detect the movement of the link 3 in a solid angle 70 extending above the horizontal reference plane P ref , around an axis A defined by the final positive inclination of the link 3.
  • the final positive inclination of the link 3 may be vertical, and the axis A around which the solid angle 70 extends is the normal to the horizontal reference plane P ref .
  • the solid angle 70 advantageously delimits a cone having a half-angle at the apex ⁇ between 35° and 55°, preferably between 40° and 50°, more preferably equal to 45°.
  • the solid angle 70 advantageously has an axis of revolution following the axis A defined by the final positive inclination of the link 3.
  • the detection means 7 advantageously comprise a tilt sensor 71, preferably a ball sensor.
  • the tilt sensor 71 is advantageously connected to the enclosure 5 using a cable 710, preferably spiral.
  • the detection means 7 may comprise a tilt sensor 71 fixed to the link 3. More precisely, the tilt sensor 71 comprises a housing fixed to the link 3, for example using an adhesive, a strap (eg rubber), a fixing collar.
  • the tilt sensor housing 71 may be positioned (fixedly) on the link 3 such that the tilt of the housing (relative to the horizontal) measured by the tilt sensor 71 corresponds directly to the tilt of the link 3 relative to the horizontal reference plane P ref .
  • the axis A around which the solid angle 70 extends may be the normal to the horizontal reference plane P ref .
  • the fixed position of the tilt sensor housing 71 on the link 3 may be chosen according to the geometry of the link 3.
  • the tilt sensor housing 71 may be aligned with a longitudinal edge of the link 3; the tilt sensor housing 71 and the link 3 may be coplanar.
  • the tilt sensor housing 71 may be positioned (fixed) on the link 3 in a predetermined orientation relative to the link 3, such that the tilt of the link 3 relative to the horizontal reference plane P ref may be measured from the predetermined orientation and the tilt of the housing (relative to the horizontal) measured by the tilt sensor 71.
  • the axis A around which the solid angle 70 extends may have an angle with the normal to the horizontal reference plane P ref , the angle corresponding to said predetermined orientation of the tilt sensor housing 71 relative to the link 3.
  • the fixed position of the tilt sensor housing 71 on the link 3 may be chosen according to the geometry of the link 3.
  • the microprocessor 8 is advantageously configured to calculate the variation in barometric pressure at a frequency greater than or equal to 2 Hz.
  • the microprocessor 8 is advantageously configured to digitally filter the data provided by the pressure sensor 6. This digital filtering makes it possible to eliminate local and parasitic variabilities of the pressure measured by the pressure sensor 6.
  • the device advantageously comprises light and/or sound alert means (not shown), configured to be activated when the microprocessor 8 sends the alert signal.
  • the light alert means can be produced in the form of light-emitting diodes.
  • the alert signal can be sent to a server using a wireless transmission module in order to centralize the alerts and simplify the monitoring of a climbing room.
  • the predetermined threshold of the barometric pressure variation advantageously corresponds to a variation in altitude of climber 1 of between 2 m and 2.5 m.
  • the microprocessor 8 is configured to send the alert signal if and only if the variation in barometric pressure exceeds the predetermined threshold and the detection signal is in the second state.
  • the device may be electrically powered by a power source 9.
  • the power source 9 may be batteries or a battery.
  • the power source 9 is advantageously provided so that the device operates for one day without recharging.
  • the term "link” is understood as a ring, preferably metallic, which may include an opening system.
  • the ring has a closed curve which may have, for example, a circular, elliptical, triangular shape, etc.
  • the link 3 may be a carabiner attached directly to the harness 2.
  • the belaying system 4 may include a rope attached to the carabiner by a knot (e.g. a figure-eight knot or a bowline knot).
  • Link 3 is intended to be held by the belay system 4 following a final positive inclination relative to a horizontal reference plane P ref , when the belay system 4 is in operation.
  • Step c) may consist of fixing the detection means 7 to the link 3.
  • Step f) is performed such that the microprocessor is configured to send the alert signal if and only if the variation in barometric pressure exceeds the predetermined threshold and the detection signal is in the second state.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Emergency Alarm Devices (AREA)
  • Measuring Fluid Pressure (AREA)
  • Alarm Systems (AREA)
  • Navigation (AREA)

Description

Domaine techniqueTechnical field

L'invention se rapporte au domaine technique des dispositifs d'alerte d'une absence d'assurage d'un grimpeur équipé d'un baudrier auquel est attaché un maillon, le maillon étant destiné à être maintenu par un système d'assurage.The invention relates to the technical field of devices for warning of the absence of belaying of a climber equipped with a harness to which a link is attached, the link being intended to be held by a belaying system.

L'invention trouve notamment son application dans la surveillance d'une salle d'escalade et la sécurisation des grimpeurs.The invention finds its application in particular in the surveillance of a climbing room and the safety of climbers.

État de l'artState of the art

Un dispositif connu de l'état de la technique, notamment le produit « Safe Gâte » de la société Techtopia, comporte des capteurs agencés horizontalement sur le mur d'escalade à 3 mètres du sol. Les capteurs permettent de détecter l'absence d'assurage du grimpeur lorsque celui-ci dépasse la ligne horizontale formée par les capteurs.A known state-of-the-art device, in particular the “Safe Gâte” product from Techtopia, comprises sensors arranged horizontally on the climbing wall 3 metres above the ground. The sensors make it possible to detect the absence of belaying by the climber when the latter exceeds the horizontal line formed by the sensors.

Un tel dispositif de l'état de la technique n'est pas entièrement satisfaisant dans la mesure où il nécessite d'équiper chaque mur d'escalade de capteurs dédiés, ce qui peut être coûteux lorsque l'on souhaite surveiller entièrement une salle d'escalade.Such a state-of-the-art device is not entirely satisfactory since it requires equipping each climbing wall with dedicated sensors, which can be costly when one wishes to fully monitor a climbing room.

DE 10 2016 101532 A1 divulgue un dispositif de sécurisation d'un grimpeur permettant de vérifier qu'une corde de sécurité est suffisamment en tension. DE 10 2016 101532 A1 discloses a climber securing device for checking that a safety rope is sufficiently tensioned.

US 2018/207455 A1 divulgue une corde rétractable couplée à un dispositif d'alerte indiquant une entrée dans une zone dangereuse pour un travailleur en altitude. US 2018/207455 A1 discloses a retractable rope coupled with an alert device indicating entry into a dangerous area for a worker at altitude.

JP 2017 093515 A divulgue un dispositif de sécurisation d'un travailleur en altitude. JP 2017 093515 A discloses a device for securing a worker at altitude.

Exposé de l'inventionDisclosure of the invention

L'invention vise à remédier en tout ou partie aux inconvénients précités. A cet effet, l'invention a pour objet un dispositif d'alerte tel que défini dans les revendications annexées.The invention aims to remedy in whole or in part the aforementioned drawbacks. To this end, the invention relates to an alert device as defined in the appended claims.

Ainsi, un tel dispositif selon l'invention permet l'alerte d'une absence d'un assurage d'un grimpeur en vérifiant :

  • l'inclinaison du maillon (grâce aux moyens de détection), destiné à être maintenu par le système d'assurage, et
  • l'altitude du grimpeur (grâce au capteur de pression).
Thus, such a device according to the invention allows the alert of an absence of a climber's belay by checking:
  • the inclination of the link (using the detection means), intended to be maintained by the belay system, and
  • the climber's altitude (thanks to the pressure sensor).

En l'absence d'assurage, le maillon n'est pas maintenu par le système d'assurage et présente donc une inclinaison négative par rapport au plan de référence horizontal. En cas d'assurage, le maillon est maintenu par le système d'assurage et présente une inclinaison positive par rapport au plan de référence horizontal.In the absence of belaying, the link is not held by the belaying system and therefore has a negative inclination relative to the horizontal reference plane. In the event of belay, the link is held by the belay system and has a positive inclination relative to the horizontal reference plane.

Le signal d'alerte est envoyé lorsque le grimpeur dépasse une altitude prédéterminée, et lorsque le maillon se trouve en dehors de la gamme d'inclinaisons positives, signifiant l'absence d'assurage. En d'autres termes, une double condition doit être respectée. Le microprocesseur est configuré pour envoyer le signal d'alerte si et seulement si la variation de pression barométrique dépasse le seuil prédéterminé et le signal de détection est dans le second état.The alert signal is sent when the climber exceeds a predetermined altitude, and when the link is outside the range of positive inclinations, meaning the absence of belaying. In other words, a double condition must be respected. The microprocessor is configured to send the alert signal if and only if the barometric pressure variation exceeds the predetermined threshold and the detection signal is in the second state.

Un tel dispositif selon l'invention équipe le grimpeur, et non le mur d'escalade comme dans l'état de la technique, ce qui permet de d'affranchir des coûts d'installation de capteurs sur chaque mur d'escalade de la salle.Such a device according to the invention equips the climber, and not the climbing wall as in the prior art, which makes it possible to avoid the costs of installing sensors on each climbing wall in the room.

DéfinitionsDefinitions

  • Par « inclinaison », on entend l'angle dièdre formé entre le plan dans lequel s'étend le maillon et le plan de référence horizontal. Par convention, l'inclinaison est positive (respectivement négative) lorsque le maillon s'étend au-dessus (respectivement au-dessous) du plan de référence horizontal.By "inclination" is meant the dihedral angle formed between the plane in which the link extends and the horizontal reference plane. By convention, the inclination is positive (respectively negative) when the link extends above (respectively below) the horizontal reference plane.
  • Par « enceinte », on entend un objet délimitant un espace non hermétiquement clos. L'enceinte doit laisser pénétrer l'air ambiant afin que le capteur de pression puisse mesurer la pression barométrique. A titre d'exemples non limitatifs, l'enceinte peut être un boîtier ou une poche de baudrier.An "enclosure" means an object that delimits a space that is not hermetically sealed. The enclosure must allow ambient air to penetrate so that the pressure sensor can measure barometric pressure. As non-limiting examples, the enclosure may be a case or a harness pocket.
  • Par « pression barométrique », on entend la pression de l'air pénétrant dans l'enceinte, s'exerçant à la surface du capteur de pression."Barometric pressure" means the pressure of the air entering the enclosure, acting on the surface of the pressure sensor.
  • Par « seuil prédéterminé », on entend une valeur de la variation de pression barométrique correspondant à une variation d'altitude du grimpeur au-delà de laquelle il est dangereux pour le grimpeur de ne pas être assuré, par exemple au-delà de 2 mètres.By "predetermined threshold" is meant a value of the barometric pressure variation corresponding to a variation in the climber's altitude beyond which it is dangerous for the climber not to be secured, for example beyond 2 meters.

Le dispositif selon l'invention peut comporter une ou plusieurs des caractéristiques suivantes.The device according to the invention may comprise one or more of the following characteristics.

Selon l'invention, les moyens de détection sont configurés pour détecter le déplacement du maillon dans un angle solide s'étendant au-dessus du plan de référence horizontal, autour d'un axe défini par l'inclinaison positive finale du maillon.According to the invention, the detection means are configured to detect the movement of the link in a solid angle extending above the horizontal reference plane, around an axis defined by the final positive inclination of the link.

Par « angle solide », on entend une grandeur définissant la portion d'espace délimitée par le centre d'une sphère et une partie de la surface de la sphère (élément de surface notée dS) selon le ratio dS/R2, où R est le rayon de la sphère.By "solid angle" we mean a quantity defining the portion of space delimited by the center of a sphere and a part of the surface of the sphere (surface element noted dS) according to the ratio dS/R 2 , where R is the radius of the sphere.

Ainsi, un avantage procuré est de pouvoir détecter de manière fiable l'inclinaison positive finale du maillon avec une tolérance autorisée en cas de déplacement intempestif du maillon.Thus, an advantage provided is to be able to reliably detect the final positive inclination of the link with an authorized tolerance in the event of untimely movement of the link.

Selon l'invention, l'inclinaison positive finale du maillon est verticale, et l'axe est la normale au plan de référence horizontal.According to the invention, the final positive inclination of the link is vertical, and the axis is the normal to the horizontal reference plane.

Selon une caractéristique de l'invention, l'angle solide délimite un cône présentant un demi-angle au sommet compris entre 35° et 55°, de préférence compris entre 40° et 50°, plus préférentiellement égal à 45°.According to a characteristic of the invention, the solid angle delimits a cone having a half-angle at the apex between 35° and 55°, preferably between 40° and 50°, more preferably equal to 45°.

Ainsi, un avantage procuré est de pouvoir détecter de manière fiable l'inclinaison positive finale du maillon avec une tolérance raisonnable autorisée en cas de déplacement intempestif du maillon.Thus, an advantage provided is to be able to reliably detect the final positive inclination of the link with a reasonable tolerance allowed in the event of untimely movement of the link.

Selon une caractéristique de l'invention, l'angle solide présente un axe de révolution suivant l'axe défini par l'inclinaison positive finale du maillon.According to a characteristic of the invention, the solid angle has an axis of revolution following the axis defined by the final positive inclination of the link.

Ainsi, un avantage procuré est de pouvoir détecter de manière fiable l'inclinaison positive finale du maillon avec une tolérance autorisée tout autour de son axe.Thus, an advantage provided is to be able to reliably detect the final positive inclination of the link with an allowed tolerance all around its axis.

Selon une caractéristique de l'invention, les moyens de détection comportent un capteur d'inclinaison, de préférence un capteur à billes.According to a characteristic of the invention, the detection means comprise a tilt sensor, preferably a ball sensor.

Ainsi, un avantage procuré est la simplicité de mise en oeuvre.Thus, one advantage provided is the simplicity of implementation.

Selon une caractéristique de l'invention, le microprocesseur est configuré pour calculer la variation de pression barométrique à une fréquence supérieure ou égale à 2 Hz.According to a characteristic of the invention, the microprocessor is configured to calculate the variation in barometric pressure at a frequency greater than or equal to 2 Hz.

Ainsi, un avantage procuré est de pouvoir déterminer de manière fiable et suffisamment rapidement le dépassement du seuil prédéterminé de la variation de pression barométrique afin d'éviter que l'altitude du grimpeur ne soit trop élevée lorsque le signal d'alerte est envoyé.Thus, an advantage provided is to be able to reliably and sufficiently quickly determine the exceeding of the predetermined threshold of the barometric pressure variation in order to avoid the climber's altitude being too high when the alert signal is sent.

Selon une caractéristique de l'invention, le dispositif comporte des moyens d'alerte lumineux et/ou sonores, configurés pour être activés lorsque le microprocesseur envoie le signal d'alerte.According to a characteristic of the invention, the device comprises light and/or sound alert means, configured to be activated when the microprocessor sends the alert signal.

Ainsi, un avantage procuré est l'efficacité de l'alerte, à la fois pour le grimpeur et un surveillant de la salle d'escalade.Thus, one advantage provided is the effectiveness of the alert, both for the climber and a supervisor of the climbing room.

Selon une caractéristique de l'invention, le seuil prédéterminé de la variation de pression barométrique correspond à une variation d'altitude du grimpeur comprise entre 2 m et 2,5 m.According to a characteristic of the invention, the predetermined threshold of the barometric pressure variation corresponds to a variation in altitude of the climber of between 2 m and 2.5 m.

Ainsi, un avantage procuré est de réduire les risques pour le grimpeur lorsque le signal d'alerte est envoyé.Thus, one benefit provided is to reduce the risks for the climber when the warning signal is sent.

Selon une caractéristique de l'invention, le capteur de pression présente une sensibilité supérieure ou égale à 1 mbar.According to a characteristic of the invention, the pressure sensor has a sensitivity greater than or equal to 1 mbar.

Ainsi, un avantage procuré est de pouvoir déterminer une variation d'altitude correspondante du grimpeur avec suffisamment de précision.Thus, an advantage provided is to be able to determine a corresponding altitude variation of the climber with sufficient precision.

L'invention a également pour objet un ensemble d'alerte tel que défini dans les revendications annexées.The invention also relates to an alert assembly as defined in the appended claims.

L'invention a également pour objet un procédé d'alerte tel que défini dans les revendications annexées.The invention also relates to an alert method as defined in the appended claims.

Brève description des dessinsBrief description of the drawings

D'autres caractéristiques et avantages apparaîtront dans l'exposé détaillé de différents modes de réalisation de l'invention, l'exposé étant assorti d'exemples et de références aux dessins joints.

  • Figure 1 est une vue schématique partielle en coupe d'un dispositif selon l'invention, le maillon n'étant pas illustré.
  • Figure 2 est une vue schématique en coupe de moyens de détection équipant un dispositif selon l'invention. « ON » désigne la gamme d'inclinaisons positives détectée par les moyens de détection. « OFF » désigne la gamme d'inclinaisons positives non détectée par les moyens de détection. Les inclinaisons négatives ne sont pas détectées par les moyens de détection.
  • Figure 3a est une vue schématique en perspective d'un grimpeur équipé d'un ensemble selon l'invention, le maillon n'étant pas maintenu par un système d'assurage. Figure 3b est une vue schématique en perspective d'un grimpeur équipé d'un ensemble selon l'invention, le maillon étant maintenu par un système d'assurage. L'ensemble selon l'invention illustré à la figure 3b n'est pas strictement identique à l'ensemble selon l'invention illustré à la figure 3a. En effet, les figures 3a et 3b illustrent des zones de fixation différentes des moyens de détection sur le maillon.
  • Figure 4 est une schématique d'un angle solide des moyens de détection permettant de détecter le déplacement du maillon s'étendant au-dessus d'un plan de référence horizontal, autour d'un axe défini par l'inclinaison positive finale du maillon.
Other features and advantages will become apparent in the detailed description of various embodiments of the invention, the description being accompanied by examples and references to the accompanying drawings.
  • Figure 1 is a partial schematic sectional view of a device according to the invention, the link not being illustrated.
  • Figure 2 is a schematic sectional view of detection means equipping a device according to the invention. “ON” designates the range of positive inclinations detected by the detection means. “OFF” designates the range of positive inclinations not detected by the detection means. Negative inclinations are not detected by the detection means.
  • Figure 3a is a schematic perspective view of a climber equipped with an assembly according to the invention, the link not being held by a belay system. Figure 3b is a schematic perspective view of a climber equipped with an assembly according to the invention, the link being held by a belay system. The assembly according to the invention illustrated in figure 3b is not strictly identical to the assembly according to the invention illustrated in Figure 3a . In fact, the Figures 3a and 3b illustrate different attachment areas of the detection means on the link.
  • Figure 4 is a schematic of a solid angle of the detection means for detecting the movement of the link extending above a horizontal reference plane, around an axis defined by the final positive inclination of the link.

Exposé détaillé des modes de réalisationDetailed description of the methods of implementation

Les éléments identiques ou assurant la même fonction porteront les mêmes références pour les différents modes de réalisation, par souci de simplification.Identical elements or those providing the same function will bear the same references for the different embodiments, for the sake of simplification.

Un objet de l'invention est un dispositif d'alerte d'une absence d'assurage d'un grimpeur 1 équipé d'un baudrier 2 auquel est attaché un maillon 3, le maillon 3 étant destiné à être maintenu par un système d'assurage 4 suivant une inclinaison positive finale par rapport à un plan de référence Pref horizontal, le dispositif comportant :

  • une enceinte 5, destinée à être fixée au baudrier 2 ;
  • un capteur de pression 6, agencé dans l'enceinte 5 pour mesurer une pression barométrique ;
  • des moyens de détection 7, destinés à être fixés au maillon 3, et configurés pour détecter un déplacement du maillon 3 dans une gamme d'inclinaisons positives par rapport au plan de référence Pref horizontal, l'inclinaison positive finale étant contenue dans la gamme d'inclinaisons positives, les moyens de détection 7 étant configurés pour sortir un signal de détection comprenant :
    • un premier état, indiquant que le maillon 3 se trouve dans la gamme d'inclinaisons positives,
    • un second état, indiquant que le maillon 3 se trouve en dehors de la gamme d'inclinaisons positives ;
  • un microprocesseur 8, agencé dans l'enceinte 5, connecté au capteur de pression 6 et aux moyens de détection 7, et configuré pour :
    • calculer une variation de la pression barométrique mesurée par le capteur de pression 6,
    • envoyer un signal d'alerte dès lors que la variation de la pression barométrique dépasse un seuil prédéterminé et que le signal de détection est dans le second état.
An object of the invention is a device for alerting a climber 1 equipped with a harness 2 to which a link 3 is attached, the link 3 being intended to be held by a belay system 4 following a final positive inclination relative to a horizontal reference plane P ref , the device comprising:
  • an enclosure 5, intended to be fixed to the harness 2;
  • a pressure sensor 6, arranged in the enclosure 5 to measure a barometric pressure;
  • detection means 7, intended to be fixed to the link 3, and configured to detect a movement of the link 3 in a range of positive inclinations relative to the horizontal reference plane P ref , the final positive inclination being contained in the range of positive inclinations, the detection means 7 being configured to output a detection signal comprising:
    • a first state, indicating that link 3 is in the range of positive inclinations,
    • a second state, indicating that link 3 is outside the range of positive inclinations;
  • a microprocessor 8, arranged in the enclosure 5, connected to the pressure sensor 6 and to the detection means 7, and configured to:
    • calculate a variation in the barometric pressure measured by the pressure sensor 6,
    • send an alert signal when the variation in barometric pressure exceeds a predetermined threshold and the detection signal is in the second state.

Le dispositif peut comporter le maillon 3, les moyens de détection 7 étant fixés au maillon 3. Le dispositif est illustré partiellement à la figure 1.The device may comprise link 3, the detection means 7 being fixed to link 3. The device is partially illustrated in figure 1 .

EnceintePregnant

L'enceinte 5 peut être réalisée sous la forme d'un boîtier. Le boîtier peut être réalisé dans un matériau plastique. Selon une alternative, l'enceinte 5 peut être une poche de baudrier.The enclosure 5 may be made in the form of a housing. The housing may be made of a plastic material. Alternatively, the enclosure 5 may be a harness pocket.

L'enceinte 5 délimite un espace non hermétiquement clos au sens où l'enceinte 5 doit laisser pénétrer l'air ambiant afin que le capteur de pression 6 puisse mesurer la pression barométrique.The enclosure 5 delimits a space that is not hermetically sealed in the sense that the enclosure 5 must allow ambient air to penetrate so that the pressure sensor 6 can measure the barometric pressure.

Capteur de pressionPressure sensor

Le capteur de pression 6 présente avantageusement une sensibilité supérieure ou égale à 1 mbar.The pressure sensor 6 advantageously has a sensitivity greater than or equal to 1 mbar.

A titre d'exemples non limitatifs, le capteur de pression 6 peut être le capteur BMP380 de la société Bosch Sensortec, ou encore le capteur MS5611-01BA03 de la société MEAS Switzlerland.As non-limiting examples, the pressure sensor 6 may be the BMP380 sensor from the company Bosch Sensortec, or the MS5611-01BA03 sensor from the company MEAS Switzlerland.

Le dispositif peut comporter au moins un capteur de pression 6, agencé dans l'enceinte 5 pour mesurer une pression barométrique. En d'autres termes, le dispositif peut comporter un capteur de pression 6 additionnel, agencé dans l'enceinte 5 pour mesurer une pression barométrique. Le capteur de pression 6 additionnel permet, par redondance, d'améliorer la fiabilité de la mesure de la pression barométrique.The device may comprise at least one pressure sensor 6, arranged in the enclosure 5 to measure a barometric pressure. In other words, the device may comprise an additional pressure sensor 6, arranged in the enclosure 5 to measure a barometric pressure. The additional pressure sensor 6 makes it possible, by redundancy, to improve the reliability of the measurement of the barometric pressure.

Moyens de détectionMeans of detection

A titre d'exemples non limitatifs, les moyens de détection 7 peuvent être fixés au maillon 3 à l'aide d'un adhésif, d'une sangle (« strap » en langue anglaise) (e.g. en caoutchouc), d'un collier de fixation.As non-limiting examples, the detection means 7 can be fixed to the link 3 using an adhesive, a strap (eg rubber), or a fixing collar.

Les moyens de détection 7 sont avantageusement configurés pour détecter le déplacement du maillon 3 dans un angle solide 70 s'étendant au-dessus du plan de référence Pref horizontal, autour d'un axe A défini par l'inclinaison positive finale du maillon 3. L'inclinaison positive finale du maillon 3 peut être verticale, et l'axe A autour duquel s'étend l'angle solide 70 est la normale au plan de référence Pref horizontal. Comme illustré à la figure 4, l'angle solide 70 délimite avantageusement un cône présentant un demi-angle au sommet α compris entre 35° et 55°, de préférence compris entre 40° et 50°, plus préférentiellement égal à 45°. L'angle solide 70 présente avantageusement un axe de révolution suivant l'axe A défini par l'inclinaison positive finale du maillon 3.The detection means 7 are advantageously configured to detect the movement of the link 3 in a solid angle 70 extending above the horizontal reference plane P ref , around an axis A defined by the final positive inclination of the link 3. The final positive inclination of the link 3 may be vertical, and the axis A around which the solid angle 70 extends is the normal to the horizontal reference plane P ref . As illustrated in FIG. figure 4 , the solid angle 70 advantageously delimits a cone having a half-angle at the apex α between 35° and 55°, preferably between 40° and 50°, more preferably equal to 45°. The solid angle 70 advantageously has an axis of revolution following the axis A defined by the final positive inclination of the link 3.

Comme illustré à la figure 2, les moyens de détection 7 comportent avantageusement un capteur d'inclinaison 71, de préférence un capteur à billes. Comme illustré à la figure 1, le capteur d'inclinaison 71 est avantageusement relié à l'enceinte 5 à l'aide d'un câble 710, de préférence spiralé.As illustrated in the figure 2 , the detection means 7 advantageously comprise a tilt sensor 71, preferably a ball sensor. As illustrated in figure 1 , the tilt sensor 71 is advantageously connected to the enclosure 5 using a cable 710, preferably spiral.

Les moyens de détection 7 peuvent comporter un capteur d'inclinaison 71 fixé au maillon 3. Plus précisément, le capteur d'inclinaison 71 comporte un boîtier fixé au maillon 3, par exemple à l'aide d'un adhésif, d'une sangle (« strap » en langue anglaise) (e.g. en caoutchouc), d'un collier de fixation.The detection means 7 may comprise a tilt sensor 71 fixed to the link 3. More precisely, the tilt sensor 71 comprises a housing fixed to the link 3, for example using an adhesive, a strap (eg rubber), a fixing collar.

Le boîtier du capteur d'inclinaison 71 peut être positionné (de manière fixe) sur le maillon 3 de sorte que l'inclinaison du boîtier (par rapport à l'horizontale) mesurée par le capteur d'inclinaison 71 correspond directement à l'inclinaison du maillon 3 par rapport au plan de référence Pref horizontal. Ainsi, par exemple, l'axe A autour duquel s'étend l'angle solide 70 peut être la normale au plan de référence Pref horizontal. La position fixe du boîtier du capteur d'inclinaison 71 sur le maillon 3 peut être choisie selon la géométrie du maillon 3. A titre d'exemples non limitatifs, le boîtier du capteur d'inclinaison 71 peut être aligné avec un bord longitudinal du maillon 3 ; le boîtier du capteur d'inclinaison 71 et le maillon 3 peuvent être coplanaires.The tilt sensor housing 71 may be positioned (fixedly) on the link 3 such that the tilt of the housing (relative to the horizontal) measured by the tilt sensor 71 corresponds directly to the tilt of the link 3 relative to the horizontal reference plane P ref . Thus, for example, the axis A around which the solid angle 70 extends may be the normal to the horizontal reference plane P ref . The fixed position of the tilt sensor housing 71 on the link 3 may be chosen according to the geometry of the link 3. As non-limiting examples, the tilt sensor housing 71 may be aligned with a longitudinal edge of the link 3; the tilt sensor housing 71 and the link 3 may be coplanar.

Selon une alternative, le boîtier du capteur d'inclinaison 71 peut être positionné (de manière fixe) sur le maillon 3 selon une orientation prédéterminée par rapport au maillon 3, de sorte que l'inclinaison du maillon 3 par rapport au plan de référence Pref horizontal peut être mesurée à partir de l'orientation prédéterminée et de l'inclinaison du boîtier (par rapport à l'horizontale) mesurée par le capteur d'inclinaison 71. Ainsi, par exemple, l'axe A autour duquel s'étend l'angle solide 70 peut présenter un angle avec la normale au plan de référence Pref horizontal, l'angle correspondant à ladite orientation prédéterminée du boîtier du capteur d'inclinaison 71 par rapport au maillon 3. La position fixe du boîtier du capteur d'inclinaison 71 sur le maillon 3 peut être choisie selon la géométrie du maillon 3.Alternatively, the tilt sensor housing 71 may be positioned (fixed) on the link 3 in a predetermined orientation relative to the link 3, such that the tilt of the link 3 relative to the horizontal reference plane P ref may be measured from the predetermined orientation and the tilt of the housing (relative to the horizontal) measured by the tilt sensor 71. Thus, for example, the axis A around which the solid angle 70 extends may have an angle with the normal to the horizontal reference plane P ref , the angle corresponding to said predetermined orientation of the tilt sensor housing 71 relative to the link 3. The fixed position of the tilt sensor housing 71 on the link 3 may be chosen according to the geometry of the link 3.

Microprocesseur et signal d'alerteMicroprocessor and alert signal

Le microprocesseur 8 est avantageusement configuré pour calculer la variation de pression barométrique à une fréquence supérieure ou égale à 2 Hz. Le microprocesseur 8 est avantageusement configuré pour filtrer numériquement les données fournies par le capteur de pression 6. Ce filtrage numérique permet d'écarter les variabilités locales et parasites de la pression mesurée par le capteur de pression 6.The microprocessor 8 is advantageously configured to calculate the variation in barometric pressure at a frequency greater than or equal to 2 Hz. The microprocessor 8 is advantageously configured to digitally filter the data provided by the pressure sensor 6. This digital filtering makes it possible to eliminate local and parasitic variabilities of the pressure measured by the pressure sensor 6.

Le dispositif comporte avantageusement des moyens d'alerte lumineux et/ou sonores (non illustrés), configurés pour être activés lorsque le microprocesseur 8 envoie le signal d'alerte. Les moyens d'alerte lumineux peuvent être réalisés sous la forme de diodes électroluminescentes. Le signal d'alerte peut être envoyé à un serveur à l'aide d'un module de transmission sans-fil afin de centraliser les alertes et simplifier la surveillance d'une salle d'escalade.The device advantageously comprises light and/or sound alert means (not shown), configured to be activated when the microprocessor 8 sends the alert signal. The light alert means can be produced in the form of light-emitting diodes. The alert signal can be sent to a server using a wireless transmission module in order to centralize the alerts and simplify the monitoring of a climbing room.

Le seuil prédéterminé de la variation de pression barométrique correspond avantageusement à une variation d'altitude du grimpeur 1 comprise entre 2 m et 2,5 m.The predetermined threshold of the barometric pressure variation advantageously corresponds to a variation in altitude of climber 1 of between 2 m and 2.5 m.

Le microprocesseur 8 est configuré pour envoyer le signal d'alerte si et seulement si la variation de la pression barométrique dépasse le seuil prédéterminé et le signal de détection est dans le second état.The microprocessor 8 is configured to send the alert signal if and only if the variation in barometric pressure exceeds the predetermined threshold and the detection signal is in the second state.

AlimentationFood

Le dispositif peut être alimenté électriquement par une source d'énergie 9. La source d'énergie 9 peut être des piles ou une batterie. La source d'énergie 9 est avantageusement prévue pour que le dispositif fonctionne une journée sans recharge.The device may be electrically powered by a power source 9. The power source 9 may be batteries or a battery. The power source 9 is advantageously provided so that the device operates for one day without recharging.

Maillon et système d'assuraqeLink and safety system

Le terme « maillon » s'entend comme un anneau, de préférence métallique, pouvant comporter un système d'ouverture. L'anneau possède une courbe fermée pouvant présenter par exemple une forme circulaire, elliptique, triangulaire etc. Le maillon 3 peut être un mousqueton attaché directement au baudrier 2. Le système d'assurage 4 peut comporter une corde attachée au mousqueton par un noeud (e.g. un noeud en huit ou un noeud de chaise).The term "link" is understood as a ring, preferably metallic, which may include an opening system. The ring has a closed curve which may have, for example, a circular, elliptical, triangular shape, etc. The link 3 may be a carabiner attached directly to the harness 2. The belaying system 4 may include a rope attached to the carabiner by a knot (e.g. a figure-eight knot or a bowline knot).

Le maillon 3 peut être un maillon rapide ou un anneau métallique attaché directement au baudrier 2. Le système d'assurage 4 peut comporter :

  • un mousqueton attaché au maillon 3,
  • une corde (ou une sangle) attachée au mousqueton par un noeud, la corde ou la sangle pouvant appartenir à un auto-assureur (e.g. Trublue®).
Link 3 may be a quick link or a metal ring attached directly to harness 2. Belay system 4 may include:
  • a carabiner attached to link 3,
  • a rope (or strap) attached to the carabiner by a knot, the rope or strap may belong to a self-belay device (eg Trublue ® ).

Le maillon 3 peut être un maillon rapide ou un anneau métallique attaché directement au baudrier 2. Le système d'assurage 4 peut comporter :

  • un système d'accroche (e.g. « BelayMate » ou « Safe Belay »), attaché au maillon 3,
  • un auto-assureur attaché au système d'accroche.
Link 3 may be a quick link or a metal ring attached directly to harness 2. Belay system 4 may include:
  • a hanging system (eg “BelayMate” or “Safe Belay”), attached to link 3,
  • a self-insurer attached to the attachment system.

Le maillon 3 est destiné à être maintenu par le système d'assurage 4 suivant une inclinaison positive finale par rapport à un plan de référence Pref horizontal, lorsque le système d'assurage 4 est en fonctionnement.Link 3 is intended to be held by the belay system 4 following a final positive inclination relative to a horizontal reference plane P ref , when the belay system 4 is in operation.

Un objet de l'invention est un système d'alerte d'une absence d'assurage d'un grimpeur 1 équipé d'un baudrier 2, le système comportant :

  • un système d'assurage 4 ;
  • un dispositif conforme à l'invention, le maillon 3 étant monté sur le système d'assurage 4, le maillon 3 étant destiné à être maintenu par le système d'assurage 4 suivant une inclinaison positive finale par rapport à un plan de référence Pref horizontal.
An object of the invention is a system for alerting a climber 1 equipped with a harness 2 to a lack of belaying, the system comprising:
  • a 4 belay system;
  • a device according to the invention, the link 3 being mounted on the belay system 4, the link 3 being intended to be held by the belay system 4 following a final positive inclination relative to a horizontal reference plane P ref .

Ensemble d'alerteAlert set

L'invention a également pour objet un ensemble d'alerte d'une absence d'assurage d'un grimpeur 1, comportant :

  • un baudrier 2, destiné à équiper le grimpeur 1 ;
  • un maillon 3, attaché au baudrier 2, et destiné à être maintenu par un système d'assurage 4 suivant une inclinaison positive finale par rapport à un plan de référence Pref horizontal ;
  • un dispositif conforme à l'invention, l'enceinte 5 étant fixée au baudrier 2, les moyens de détection 7 étant fixés au maillon 3.
The invention also relates to a set for alerting a climber 1 to a lack of belaying, comprising:
  • a harness 2, intended to equip the climber 1;
  • a link 3, attached to the harness 2, and intended to be held by a belay system 4 following a final positive inclination relative to a horizontal reference plane P ref ;
  • a device according to the invention, the enclosure 5 being fixed to the harness 2, the detection means 7 being fixed to the link 3.

L'ensemble est illustré aux figures 3a et 3b. L'ensemble selon l'invention illustré à la figure 3b n'est pas strictement identique à l'ensemble selon l'invention illustré à la figure 3a. En effet, les figures 3a et 3b illustrent des zones de fixation différentes des moyens de détection 7 sur le maillon 3.The whole is illustrated in Figures 3a and 3b . The assembly according to the invention illustrated in the figure 3b is not strictly identical to the assembly according to the invention illustrated in Figure 3a . Indeed, the Figures 3a and 3b illustrate different fixing areas of the detection means 7 on the link 3.

Procédé d'alerteAlert procedure

L'invention a enfin pour objet un procédé d'alerte d'une absence d'assurage d'un grimpeur 1 équipé d'un baudrier 2 auquel est attaché un maillon 3, le maillon 3 étant destiné à être maintenu par un système d'assurage 4 suivant une inclinaison positive finale par rapport à un plan de référence Pref horizontal, le procédé comportant les étapes :

  1. a) prévoir une enceinte 5, destinée à être fixée au baudrier 2 ;
  2. b) agencer un capteur de pression 6 dans l'enceinte 5 pour mesurer une pression barométrique ;
  3. c) fournir des moyens de détection 7, destinés à être fixés au maillon 3 ;
  4. d) configurer les moyens de détection 7 pour :
    • détecter un déplacement du maillon 3 dans une gamme d'inclinaisons positives par rapport au plan de référence Pref horizontal, l'inclinaison positive finale étant contenue dans la gamme d'inclinaisons positives ;
    • sortir un signal de détection comprenant :
      • un premier état, indiquant que le maillon 3 se trouve dans la gamme d'inclinaisons positives,
      • un second état, indiquant que le maillon 3 se trouve en dehors de la gamme d'inclinaisons positives ;
  5. e) agencer un microprocesseur 8 dans l'enceinte 5, connecté au capteur de pression 6 et aux moyens de détection 7 ;
  6. f) configurer le microprocesseur 8 pour :
    • calculer une variation de la pression barométrique mesurée par le capteur de pression 6,
    • envoyer un signal d'alerte dès lors que la variation de la pression barométrique dépasse un seuil prédéterminé et que le signal de détection est dans le second état.
The invention finally relates to a method for alerting a climber 1 equipped with a harness 2 to which a link 3 is attached to the safety net, the link 3 being intended to be held by a safety net system 4 at a final positive inclination relative to a horizontal reference plane P ref , the method comprising the steps:
  1. a) provide an enclosure 5, intended to be attached to the harness 2;
  2. b) arranging a pressure sensor 6 in the enclosure 5 to measure a barometric pressure;
  3. (c) provide detection means 7, intended to be fixed to link 3;
  4. d) configure the detection means 7 to:
    • detecting a displacement of link 3 in a range of positive inclinations relative to the horizontal reference plane P ref , the final positive inclination being contained in the range of positive inclinations;
    • output a detection signal including:
      • a first state, indicating that link 3 is in the range of positive inclinations,
      • a second state, indicating that link 3 is outside the range of positive inclinations;
  5. e) arranging a microprocessor 8 in the enclosure 5, connected to the pressure sensor 6 and to the detection means 7;
  6. f) configure the microprocessor 8 to:
    • calculate a variation in the barometric pressure measured by the pressure sensor 6,
    • send an alert signal when the variation in barometric pressure exceeds a predetermined threshold and the detection signal is in the second state.

L'étape c) peut consister à fixer les moyens de détection 7 au maillon 3.Step c) may consist of fixing the detection means 7 to the link 3.

L'étape f) est exécutée de sorte que le microprocesseur est configuré pour envoyer le signal d'alerte si et seulement si la variation de la pression barométrique dépasse le seuil prédéterminé et le signal de détection est dans le second état.Step f) is performed such that the microprocessor is configured to send the alert signal if and only if the variation in barometric pressure exceeds the predetermined threshold and the detection signal is in the second state.

Claims (11)

  1. Device for providing a warning about an absence of belaying for a climber (1) equipped with a harness (2), the device comprising:
    - a link (3) intended to be attached to the harness (2);
    - an enclosure (5) intended to be fixed to the harness (2);
    - a pressure sensor (6), arranged in the enclosure (5) to measure a barometric pressure;
    - detection means (7) comprising an inclination sensor (71), the inclination sensor (71) comprising a housing positioned fixedly on the link (3), the detection means (7) being configured to detect a movement of the link (3) within a range of positive inclinations when the link (3) extends in a plane above a horizontal reference plane (Pref), the positive inclinations in the range being the dihedral angles formed between the plane in which the link (3) extends and the horizontal reference plane (Pref); the positive inclinations in the range that are detected by the inclination sensor (71) containing a final positive inclination corresponding to the dihedral angle formed between the plane in which the link (3) extends when the link (3) is held by a belaying system (4) and the horizontal reference plane (Pref), the detection means (7) being configured such that the positive inclinations in the range that are detected by the inclination sensor form a solid angle (70) extending above the horizontal reference plane (Pref), and about a vertical axis (A) that is the normal to the horizontal reference plane (Pref);
    the detection means (7) being configured to output a detection signal comprising:
    a first state, indicating that the link (3) is in the range of positive inclinations,
    a second state, indicating that the link (3) is outside the range of positive inclinations;
    - a microprocessor (8), arranged in the enclosure (5), connected to the pressure sensor (6) and to the detection means (7), and configured to:
    compute a variation in the barometric pressure measured by the pressure sensor (6),
    send a warning signal if and only if the variation in the barometric pressure exceeds a predetermined threshold and the detection signal is in the second state.
  2. Device according to Claim 1, wherein the solid angle (70) defines a cone having a half apex angle (α) of between 35° and 55°, preferably of between 40° and 50°, more preferably equal to 45°.
  3. Device according to Claim 1 or 2, wherein the solid angle (70) has an axis of revolution along the vertical axis (A) that is the normal to the horizontal reference plane (Pref).
  4. Device according to one of Claims 1 to 3, wherein the inclination sensor (71) is a ball sensor.
  5. Device according to one of Claims 1 to 4, wherein the microprocessor (8) is configured to compute the variation in barometric pressure at a frequency greater than or equal to 2 Hz.
  6. Device according to one of Claims 1 to 5, comprising light-based and/or sound-based warning means, configured to be activated when the microprocessor (8) sends the warning signal.
  7. Device according to one of Claims 1 to 6, wherein the predetermined threshold for the variation in barometric pressure corresponds to a variation in the altitude of the climber (1) of between 2 m and 2.5 m.
  8. Device according to one of Claims 1 to 7, wherein the pressure sensor (6) has a sensitivity greater than or equal to 1 mbar.
  9. System for providing a warning about an absence of belaying for a climber (1) equipped with a harness (2), the device comprising:
    - a belaying system (4);
    - a device according to one of Claims 1 to 8, the positive inclinations in the range that are detected by the inclination sensor (71) containing the final positive inclination corresponding to the dihedral angle formed between the plane in which the link (3) extends when the link (3) mounted on the belaying system (4) is held by the belaying system (4) and the horizontal reference plane (Pref).
  10. Assembly for providing a warning about an absence of belaying for a climber (1), comprising:
    - a harness (2), intended to be fitted to the climber (1);
    - a device according to one of Claims 1 to 8, the link (3) being attached to the harness (2), the enclosure (5) being fixed to the harness (2).
  11. Method for providing a warning about an absence of belaying for a climber (1) equipped with a harness (2) to which a link (3) is attached, the method comprising the following steps:
    a) providing an enclosure (5) intended to be fixed to the harness (2);
    b) arranging a pressure sensor (6) in the enclosure (5) in order to measure a barometric pressure;
    c) fixedly positioning detection means (7) on the link (3); the detection means (7) comprising an inclination sensor (71), the inclination sensor (71) comprising a housing positioned fixedly on the link (3);
    d) configuring the detection means (7):
    - to detect a movement of the link (3) within a range of positive inclinations when the link (3) extends in a plane above a horizontal reference plane (Pref), the positive inclinations in the range being the dihedral angles formed between the plane in which the link (3) extends and the horizontal reference plane (Pref); the positive inclinations in the range that are detected by the inclination sensor (71) containing a final positive inclination corresponding to the dihedral angle formed between the plane in which the link (3) extends when the link (3) is held by a belaying system (4) and the horizontal reference plane (Pref);
    - such that the positive inclinations in the range that are detected by the inclination sensor (71) form a solid angle (70) extending above the horizontal reference plane (Pref), and about a vertical axis (A) that is the normal to the horizontal reference plane (Pref);
    - to output a detection signal comprising:
    a first state, indicating that the link (3) is in the range of positive inclinations,
    a second state, indicating that the link (3) is outside the range of positive inclinations;
    e) arranging a microprocessor (8) in the enclosure (5), connected to the pressure sensor (6) and to the detection means (7);
    f) configuring the microprocessor (8) to:
    - compute a variation in the barometric pressure measured by the pressure sensor (6),
    - send a warning signal if and only if the variation in the barometric pressure exceeds a predetermined threshold and the detection signal is in the second state.
EP20202687.8A 2019-10-21 2020-10-20 Device for alerting about an absence of belay for a climber Active EP3812014B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1911754A FR3102065B1 (en) 2019-10-21 2019-10-21 Device for warning of the absence of belaying of a climber

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EP3812014A1 EP3812014A1 (en) 2021-04-28
EP3812014B1 true EP3812014B1 (en) 2024-10-09

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6409748B2 (en) * 2015-11-18 2018-10-24 富士通株式会社 Work state monitoring system, work state monitoring method and safety belt
DE102016101532A1 (en) * 2016-01-28 2017-08-03 Philipp Strasser A tilt measuring device for measuring a slope of a safety rope for a climber
US10722739B2 (en) * 2017-01-25 2020-07-28 Jeffrey D. Thompson Controlled descent self-retracting lanyard

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FR3102065B1 (en) 2021-10-22
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