Automatic determination of the position of an object

Abstract

The disclosure relates to a method for analysis of magnetic fields or signals used for the determination of the position of an object, wherein two temporally to each other shifted magnetic signals or fields are generated by two conductors arranged at least in part or completely separated from each other. The magnetic fields generated by the conductors are consecutively being captured by at least one and preferably three sensors arranged orthogonally to each other and determining from the captured signals information for determining the position of the object carrying the sensors relative to the conductors.

What is claimed is: 
     
         1 . An arrangement of at least two electrical conductors, wherein:
 the at least two electrical conductors are placed parallel to each other;   both conductors are adapted to generate a magnetic field with each of the at least two conductors connected to a current source; and   at least one end of each of the at least two conductors, which is averted to the connection with the current source, electronically grounded.   
     
     
         2 . The arrangement according to  claim 1 , wherein the at least two electrical conductors are standing horizontally. 
     
     
         3 . The arrangement according to  claim 1 , wherein the at least two electrical conductors are placed perpendicular to a surface. 
     
     
         4 . The arrangement according to  claim 1 , wherein the at least one end of each of the at least two electrical conductors is grounded through at least one anchor extending underneath a surface. 
     
     
         5 . The arrangement according to  claim 1 , wherein on a sports field at each side of at least one marking line at least one electrical conductor is placed at a same horizontal distance to the marking line and wherein the at least two conductors extend beyond the length of the marking line. 
     
     
         6 . The arrangement according to  claim 5 , wherein at least one electrical conductor is placed in front of a marking line and at least one electrical conductor is placed behind the marking line of a sports field in such a manner that each of the conductors is parallel to the marking line at the same horizontal distance. 
     
     
         7 . The arrangement of  claim 6 , wherein the at least two electrical conductors are placed at a same level so that a field strength of the at least two electrical conductors cuts a surface of the sports field orthogonal to the marking line. 
     
     
         8 . The arrangement of  claim 1 , wherein the at least two electrical conductors foam orthogonal pair-wise arrangements of conductors. 
     
     
         9 . A method for determining a position of an object comprising:
 placing at least two electrical conductors in a sports field at a same height;   generating magnetic fields from the at least two conductors; and   producing a field strength from the magnetic fields that orthogonally cuts a surface of the sports field at a marking line.   
     
     
         10 . The method according to  claim 9 , wherein placing the at least two electrical conductors in the sports field comprises arranging the at least two electrical conductors underneath a surface of the sports field. 
     
     
         11 . The method according to  claim 9 , wherein placing the at least two electrical conductors in the sports field comprises laying the at least two electrical conductors beneath a surface of the sports field parallel to the marking line. 
     
     
         12 . The method according to  claim 9 , wherein placing the at least two electrical conductors in the sports field comprises creating at least one notch in a surface of the sports field. 
     
     
         13 . The method according to  claim 9 , comprising attaching at least one electrical conductor to a non-conductive carrier having an inflexible backing strip. 
     
     
         14 . An apparatus comprising:
 at least two electrical conductors positioned at a same height in a sports field;   at least one current source coupled to at least one end of each of the at least two conductors for generating magnetic fields that orthogonally cut a surface of the sports field at a marking line; and   at least one ground source coupled to at least one end of each of the at least two conductors electronically grounding the at least two electrical conductors.   
     
     
         15 . The apparatus according to  claim 14 , comprising a conductor carrier for securing at least one electrical conductor, wherein the conductor carrier is non-conducting. 
     
     
         16 . The apparatus according to  claim 15 , wherein the conductor carrier comprises an inflexible backing strip having at least one threaded screw for positioning alignment of the at last one electrical conductor. 
     
     
         17 . The apparatus according to  claim 14 , comprising at least two conductive carriers for each of the at least two electrical conductors. 
     
     
         18 . The apparatus according to  claim 17 , wherein the at least two conductive carriers comprise inflexible backing strips having threaded screws for positioning alignment of the at least two electrical conductors. 
     
     
         19 . The apparatus according to  claim 17 , wherein the at least two conductive carriers couple together to form a single apparatus. 
     
     
         20 . The apparatus according to  claim 17 , comprising a bolted assembly for varying the distance between the at least two conductive carriers.