METHOD AND DEVICE FOR POSITIONING, COMMUNICATION AND FLOW CONTROL

摘要

Method and device for positioning in a system, for example through data exchange for use in projection works, flow control or the like, including: a number of mobile units (2); at least one central unit (9); a number of transmitter and/or receiver stations, so called mobile nodes (7) and reference nodes (5, 6, 7), arranged inside and/or outside a volume (4), such as an opencast mine (15), a local transportation system or the like. Information exchange between the mobile units and the reference nodes (5, 6) and signal detection is performed by means of an information carrying medium, such as electromagnetic carrier waves or the like. In the central unit (9) and/or the mobile unit (2), the positions of the mobile units are generated in a number of coordinates, preferably three (X, Y, Z), by the distances to the reference nodes (5, 6) being measured, compiled and the position being calculated. The reference nodes (5, 6) which are stationary but movable, are placed inside and/or outside the volume (4), so that at least three reference nodes (5, 6) are detectable from each mobile node (7) at each point within the volume. The reference nodes are placed in such a way that a scalar (CGU) at each point within the volume (4) is kept within a minimum and maximum value (O