BOPI 05 BR / 2025 REPERTOIRE NUMERIQUE 11 (11) 21886 Consulter le mémoire (51) G01S 17/00 (2023.01); G01S 7/48 (2023.01); G05D 1/02 (2023.01) (21) 1202100505 - PCT/EP2020/063225 (22) 12/05/2020 (30) EP n° 19174444.0 du 14/05/2019 (54) Autonomous mine vehicle operation. (72) LEHTINEN, Antti (FI); SANERMA, Simo (FI); PARKKINEN, Teemu (FI); PAJALA, Esa (FI) et PULLI, Riku (FI) (73) SANDVIK MINING AND CONSTRUCTION OY, Pihtisulunkatu 9, 33330 TAMPERE (FI) (74) S.C.P AKKUM, AKKUM & Associates, No. 1777, rue 6.261, Yaoundé 2, Auditorium Jean Paul II, Face Brigade de Gendarmerie, Mbankolo, B.P. 4966, YAOUNDE (CM). (57) According to an example aspect of the present invention, there is provided a method, comprising: detecting a dust condition for an autonomously operating mine vehicle performing optical environment scanning for positioning the mine vehicle at a worksite, transitioning the mine vehicle operating in an automatic driving mode to a dust driving mode in response to detecting the dust condition, the dust driving mode being associated with one or more control actions for autonomous operation of the mine vehicle, controlling dead-reckoning based positioning for updating the position of the mine vehicle during the dust driving mode, monitoring of a deadreckoning error parameter during the dust driving mode, and in response to the dead-reckoning error parameter reaching an error threshold, controlling the mine vehicle to stop or reduce speed. Fig. 4 ________________________________________ (11) 21887 Consulter le mémoire (51) E04C 1/41(2023.01) (21) 1202200111 (22) 23/05/2022 (54) Procédé de production de briques ou blocs pour construction a base du sable du désert. (72) Zeiny Mohamed LEMINE ABASS (MR) et Sami YAICH (MR) (73) Zeiny Mohamed LEMINE ABASS, Arafat 1 Lot n° 560, NOUAKCHOTT (MR) (74) Cabinet CISSOKO Idrissa, Tevragh-Zeina, IIôt K ext sect II Lôt 211, B.P. 7501, NOUAKCHOTT (MR). (57) La présente invention a pour objet un procédé de transformation du sable du désert en briques ou blocs pour construction et faire en sorte que ces briques ou blocs aient des caractéristiques
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