US 12,270,682 B2
Device for warning about the absence of belaying of a climber
Philippe Pean, Eybens (FR)
Assigned to MASAI, Grenoble (FR)
Filed by MASAI, Grenoble (FR)
Filed on Apr. 21, 2022, as Appl. No. 17/726,005.
Prior Publication US 2023/0341225 A1, Oct. 26, 2023
Int. Cl. G01C 5/06 (2006.01); A62B 35/00 (2006.01); A63B 29/02 (2006.01)
CPC G01C 5/06 (2013.01) [A62B 35/0043 (2013.01); A62B 35/0093 (2013.01); A63B 29/02 (2013.01); A63B 2220/10 (2013.01); A63B 2220/18 (2013.01); A63B 2225/74 (2020.08)] 13 Claims
OG exemplary drawing
 
1. A device configured for warning about the absence of belaying of a climber equipped with a harness, the device comprising:
a link, configured to be attached to the harness, and configured to be held by a belaying system with a final positive incline with respect to a horizontal reference plane;
an enclosure, configured to be fastened to the harness;
a pressure sensor, arranged in the enclosure to measure a barometric pressure;
a detector, fastened to the link, and configured so as to detect a movement of the link within a range of positive inclines with respect to the horizontal reference plane, the final positive incline being contained within the range of positive inclines, the detector being configured so as to output a detection signal comprising:
a first state, indicating that the link is within the range of positive inclines, and
a second state, indicating that the link is outside the range of positive inclines; and
a microprocessor, arranged in the enclosure, connected to the pressure sensor and to the detector, and configured so as to:
compute a variation in the barometric pressure measured by the pressure sensor, and
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.