RT Journal Article T1 Implementation of Explosion Safety Regulations in Design of a Mobile Robot for Coal Mines A1 Novac, Petr A1 Kot, Tomas A1 Konecny, Zdenek A1 Moczulski, Wojciech A1 Rodriguez Lopez, Angel AB The article focuses on specific challenges of the design of a reconnaissance mobile robotic system aimed for inspection in underground coal mine areas after a catastrophic event. Systems that are designated for these conditions must meet specific standards and regulations. In this paper is discussed primarily the main conception of meeting explosion safety regulations of European Union 2014/34/EU (also called ATEX-from French "Appareils destines a etre utilises en ATmospheres Explosives") for Group I (equipment intended for use in underground mines) and Category M1 (equipment designed for operation in the presence of an explosive atmosphere). An example of a practical solution is described on main subsystems of the mobile robot TeleRescuera teleoperated robot with autonomy functions, a sensory subsystem with multiple cameras, three-dimensional (3D) mapping and sensors for measurement of gas concentration, airflow, relative humidity, and temperatures. Explosion safety is ensured according to the Technical Report CLC/TR 60079-33 "s" by two main independent protections-mechanical protection (flameproof enclosure) and electrical protection (automatic methane detector that disconnects power when methane breaches the enclosure and gets inside the robot body). PB MDPI SN 2076-3417 YR 2018 FD 2018-11-19 LK https://hdl.handle.net/10016/38944 UL https://hdl.handle.net/10016/38944 LA eng DS e-Archivo RD 17 jul. 2024