Method for locating, and locating device

US11237290B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Tobias Zibold · Stuttgart, DE
• Frank Huembert · Stuttgart, DE
• Andrej Albrecht · Stuttgart, DE

Key dates

• Filing date: Jun 4, 2018
• Grant date: Feb 1, 2022
• Expiry date: Jul 13, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G01V13/00
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for locating an object hidden beneath a surface using a locating device is disclosed. At least one coupling signal dependent on the object is received by a receiving means of the locating device. Once the locating device has been placed on the surface, a first value Ci of the coupling signal is detected and the first value Ci is defined as value CBG for a background subtraction. In particular, whilst the locating device and the surface are moved relative to one another, at least one further value C of the coupling signal is detected and the value CBG for the background subtraction is re-calibrated by the at least one further value C if the at least one further value C is lower than the value CBG for the background subtraction. The re-calibration is suspended if a valid value CBG is identified for the background subtraction.