Patent Number: 
Section: claims

1. A position determination system, comprising:a base;a radiosensitive detector carried by the base;a distance sensor carried by the base and capable of sensing a distance to an object, wherein the distance sensor is capable of being rotated 360° with respect to the base and the radiosensitive detector; anda CPU that receives information from the distance sensor to determine a distance to the object. 2. The position determination system as set forth in claim 1, wherein the object is a wall of a room, and wherein the radiosensitive detector does not rotate with respect tothe base, and wherein the CPU is carried by the base. 3. The position determination system as set forth in claim 1, wherein the CPU determines a perpendicular distance to the object and determines an angular position of the object. 4. The position determination system as set forth in claim 1, wherein the distance to the object is determined from an origin that is selected from the group consisting of a center of the radiosensitive detector, a face of the distance sensor, a center of the base, or a center of a rotational axis of the distance sensor. 5. A position determination system, comprising:a radiosensitive detector;a distance sensor operably coupled to the radiosensitive detector;a motor coupled to the distance sensor to rotate the distance sensor to 360° around the radiosensitive detector; anda CPU that controls the operation of the motor to move the distance sensor around the radiosensitive detector and determines distance and angle data from the distance sensor to an object. 6. The position determination system as in claim 5, wherein the CPU determines an orientation of the radiosensitive detector. 7. The position determination system as in claim 5, wherein the CPU determines a perpendicular distance from the radiosensitive detector to the object. 8. The position determination system as in claim 5, further comprising a rotatable connection between the radiosensitive detector and the distance sensor. 9. A method for determining a position of a radiosensitive detector, comprising:rotating a distance sensor to 360° around the radiosensitive detector; andmeasuring distance and angle data from the distance sensor to an object at incremental positions around the radiosensitive detector. 10. The method as in claim 9, further comprising determining an Orientation of the radiosensitive detector. 11. The method as in claim 9, further comprising determining a perpendicular distance from the radiosensitive detector to the object. 12. The method as in claim 9, further comprising determining if the object is on a wall segment. 13. The method as in claim 12, further comprising determining a perpendicular distance to the wall segment.