Abstract: A method to identify a person driving a vehicle and his/hers driving style, and also to switch on the vehicle either to a driving-allowing mode or to a drive-stop mode, is provided. In the method, the vehicle includes a scanner, and the driver is provided with a data-containing card or object. According to the method, the driving style information of the driver is stored on the card or object, and on starting driving the driver inserts the card or object into the vehicle scanner. Thereafter, data received from selected vehicle controls and/or data from varying information-collecting detectors is compared with information stored on the driver's driving style card, and on basis of the comparison the control unit in the vehicle either allows driving or enters a drive-stop mode.

Abstract: A method to identify a person driving a vehicle and his/hers driving style and also to switch on the vehicle either to driving-allowing mode or on drive-stop mode, whereby in the method the vehicle comprises a card or another similar object containing data, a scanner, and the driver is provided with said data-containing card or with a similar object. In the method driving style information of the driver is stored on said card or object, and on starting driving the driver inserts the card or object into the vehicle scanner, whereby data received from selected vehicle controls and/or data from varying information-collecting detectors is compared with information stored on driver's driving style card and on basis of the comparison the control unit in the vehicle either allows driving or informs of drive-stop or of other consequence of that kind.

Abstract: The invention relates to a welding apparatus, that includes a welding machine (1), shielding gas unit (4) and a nozzle part (3), that is connected to the welding machine (1). The welding rod (L), that is led to the welding point from the shielding gas unit (4), is arranged to be melted while being protected by the shielding gas in connection with the nozzle part (3) by means of an arc achieved by influence of the supply unit (1b) for welding current. To improve fire safety of the welding occasion, the welding apparatus includes furthermore a coupling arrangement (X), that comprises furthermore organs (X2), that are arranged to interrupt at least supply of welding current to the nozzle part (3) and to lead shielding gas to the point exposed for fire or that is burning through the nozzle part (3) at an essentially increased volume flow rate in respect to the welding occasion.