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Method and Device for Localizing Anomalies Located Inside a Hollow Structure Located on Bare Ground and/or Buried

  • US 20080129534A1
  • Filed: 01/18/2006
  • Published: 06/05/2008
  • Est. Priority Date: 01/20/2005
  • Status: Abandoned Application
First Claim
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1. A method for externally localizing anomalies located in a hollow structure laid on bare ground and/or buried, which anomalies have already been detected beforehand by a device moving inside said hollow structure, and positioned by counting, from an origin, marks located at regular intervals, accessible from the inside and from the outside of said hollow structure,said method consisting of:

  • a. defining by counting from the same aforesaid origin, a mark accessible from the outside of the hollow structure,b. positioning a transponder module on the aforesaid mark,c. identifying the transponder module by an identification code,d. determining the number of marks separating said anomalies and said identified transponder module.

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