Abstract: The present invention relates to a computer implemented method for controlling temperature and humidity of an air in stream, the method comprising receiving parameters indicative of a temperature and water content of an airstream in a downstream M section and of a temperature and water content of a medium in the system, and further determining in processing circuitry a desired temperature change and desired water content change of the first medium as a first function f1 based on the received parameters and also based on a second function that defines a relationship between the air temperature and the air water content as co-dependent variables; and also generating a first and second control signal configured to apply the desired temperature change and the desired water content change to the first medium. The invention also relates to a corresponding system.

Abstract: The invention relates to a method of synchronizing clocks contained in a local network of bus type, such as Ethernet and a system of synchronizing clocks. In local networks of this kind a number of nodes are connected to a common data channel. The object of the invention is to obtain a method and a system of synchronizing the clocks which is more accurate than previous methods and systems, in which the synchronizing information is transmitted as common data packages in which the receiver of the synchronizing information does not know the instant of the data package generation. According to the invention a synchronizing message is transmitted from one node which has been chosen to be the master to all nodes, the master node inclusive. When receiving a synchronizing message the nodes read the clock state. Then the master node transmits a clock time message containing the master node clock state when it received the synchronizing message.