×

Ancillary arrangement for inclusion in a distance measuring instrument

  • US 5,051,934 A
  • Filed: 12/22/1988
  • Issued: 09/24/1991
  • Est. Priority Date: 12/22/1987
  • Status: Expired due to Fees
First Claim
Patent Images

1. An ancillary arrangement for application with a distance measuring instrument means when setting out boundary marks, the distance measuring instrument being of a type which includes an electronic distance meter, a vertical angle meter (18) and a horizontal angle meter (19), a signal processing and computing unit (16, 16'"'"') which computes a position of a measuring reflector (12) in relation to the instrument, and input means (17) for input of the desired boundary settings of an area of ground into a memory location of a memory store in said computing unit prior to setting out said boundary, wherein the distance measuring instrument is adapted to be held directed towards the reflector and to carry out repeated measurements thereon;

  • wherein the computing unit (16) is constructed to ascertain with each measuring operation whether measuring data obtained coincides or deviates from setting-out data within a predetermined acceptable tolerance range, and when deviation is observed to compute the direction or directions in which the reflector must be moved in order to be positioned in a location determined by said setting-out data and to provide movement direction signals; and

    comprising an indicator which is steered by said movement direction signals produced by the computing unit so as to produce continuously on the basis of said signals a clearly discernible indication of a code which can be readily understood during a working procedure by a person placed adjacent the reflector and which indicates whether the position of the reflector is to be moved, and if so, in which direction.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×