Abstract: A control system for controlling at least one environmental parameter in an operating area in response to sensor signals. The system includes a central control unit, actuators and mobile sensor units, and also at least one, preferably a plurality, of communication nodes which are placed in the operating area. Each one of the communication nodes is configured to mediate signals between the sensor units and the central control unit in a monitoring area by wirelessly receiving sensor signals from sensor units located within its monitoring area and forwarding the sensor signals to the central control unit. A monitoring area of a communication node is defined by the signal coverage of the communication node.

Abstract: A control system for controlling at least one environmental parameter, such as temperature or air quality, in an operating area in response to sensor signals. The system includes a central control unit, actuators and mobile sensor units, and also at least one, preferably a plurality, of communication nodes which are placed in the operating area. Each one of the communication nodes is configured to mediate signals between the sensor units and the central control unit in a monitoring area by wirelessly receiving sensor signals from sensor units located within its monitoring area and forwarding the sensor signals to the central control unit. A monitoring area of a communication node is defined by the signal coverage of the communication node.

Abstract: A sterile water collector of the type comprising a sample device (11) and a sample receptacle (1), and in which the sample receptacle is activated by means of a dropping plummit, which brings about opening of an inlet to the evacuated sample receptacle, which consists of a flexible wall structure (6) located between two rigid end bodies (2,3), whereby the rigid end bodies by means of a load are arranged to be pulled in a direction away from each other a certain distance when the sample device (11) is activated, whereby the sample water is sucked into the receptacle.