Abstract: A collision warning apparatus, to be mounted to a vehicle, has a roof mount unit (40), to be fixed to the vehicle's roof, as well as a cabin mount unit (41) to be located in the driver's cabin. A digital transmission line (42) is provided for connecting the two. The roof mount unit (40) houses the antennas as well as the analog circuitry of the apparatus, while the cabin mount unit (41) comprises a display (26). The data sent through the transmission line (42) is digital, which allows to make the transmission line thin and flexible. The roof mount unit (40) has a magnet (43) and batteries (48) mounted in its base section (46), with the lighter components, in particular the antennas (30a, 31a, 32a) located in its head section (47).

Abstract: Vehicles and other objects (4a, 4b, 4c, 5, 6, 7, 8) in a surface mine (1) are equipped with monitoring devices (12) that communicate by radio in order to detect the risk of collisions. The devices (12) are equipped with GNSS-receivers (15). At least one of the objects (4a, 4b, 4c) has two devices (12a, 12b) mounted to it. Each of the two devices (12a, 12b) determines its position independently, which in turn allows to determine not only the position, but also the orientation, of the object.

Abstract: A collision warning apparatus, to be mounted to a vehicle, has a roof mount unit (40), to be fixed to the vehicle's roof, as well as a cabin mount unit (41) to be located in the driver's cabin. A digital transmission line (42) is provided for connecting the two. The roof mount unit (40) houses the antennas as well as the analog circuitry of the apparatus, while the cabin mount unit (41) comprises a display (26). The data sent through the transmission line (42) is digital, which allows to make the transmission line thin and flexible. The roof mount unit (40) has a magnet (43) and batteries (48) mounted in its base section (46), with the lighter components, in particular the antennas (30a, 31a, 32a) located in its head section (47).

Abstract: Vehicles and other objects (4a, 4b, 4c, 5, 6, 7, 8) in a surface mine (1) are equipped with monitoring devices (12) that communicate by radio in order to detect the risk of collisions. The devices (12) are equipped with GNSS-receivers (15). In addition, persons operating in the area are also equipped with monitoring devices (12?). This allows the devices (12) on the vehicles to detect the presence of pedestrians and to issue alerts if necessary, thereby improving the safety of the system. Advantageously, the devices are integrated in a helmet (30) for best radio reception/transmission and can be powered by means of a solar power supply (32).