| 摘要 |
<p>The invention relates to dynamic routing in a communication network. This is achieved by means of a communication unit (120), particularly for use in a telemetry network. The communication unit (120) comprises a radio-transceiver (140) and a controller (130) with a memory (136, 138), where the controller (130) is arranged to receive an inquiry message from a second communication unit (120) in the network by means of the transceiver (140) and to decode the inquiry message. The memory (136, 138) contains position data concerning the communication unit's (120) geographical position. On decoding the message, the controller is arranged to derive position data concerning an originator's and a destination's geographical positions, and furthermore, on the basis of the position data, to calculate course deviation data representing the distance from the communication unit's own position to a straight line between the originator's and the destination's positions. The controller (130) is further arranged to transmit a response message comprising the said course deviation data back to the said second communication unit (120) by means of the transceiver (140). The invention also comprises a meter reading unit (100) in which the communication unit (120) is included.</p> |
