Patent ID: 8123003

Claim:
An arrangement for determining a position of an elevator car in an elevator hoistway, wherein the arrangement comprises: a measuring apparatus fixed to the elevator car and forming an electromagnetic radio-frequency measuring signal, for determining the position of the elevator car; a position identifier fitted in a selected location in relation to the elevator hoistway, wherein the position identifier is arranged to connect inductively to the electromagnetic radio-frequency measuring signal, and also after connecting to send a determined pulse pattern to the measuring apparatus via the electromagnetic radio-frequency measuring signal; a permanently-magnetized marking piece located in the position identifier, wherein the permanently-magnetized marking piece comprises a plurality of consecutive magnetic areas, magnetic poles of any two immediately adjacent consecutive magnetic areas are always of opposite directions to each other, and the consecutive magnetic areas are spaced apart with a predetermined distance from each other in the direction of movement of the elevator car; and a measuring device located in the measuring apparatus and measuring an external magnetic field of the permanently-magnetized marking piece.