Method and device for locating anomalies inside a hollow...

Details Method and device for locating anomalies inside a hollow... Method and device for locating anomalies inside a hollow...

G - Physics

01

V

G01V 15/00 (2006.01)

Patent

CA 2592409

The invention relates to a method of externally locating anomalies inside a hollow structure which is positioned on and/or below the ground (PL), wherein said anomalies have been previously detected by a device (RTE) moving inside the hollow structure and positioned by counting a series of reference marks from an origin, said reference marks being located at regular intervals and being accessible from the inside and outside of the hollow structure (PL). The inventive method comprises the following steps consisting in: a. defining by means of counting a reference mark, starting from said origin, which is accessible from outside of the hollow structure; b. positioning a transponder module (T) on said reference mark; c. identifying the transponder module (T) by an I.D. code; and d. determining the number of reference marks separating the anomalies and the identified transponder module (T).

Procédé de localisation externe d'anomalies situées dans une structure creuse posée à même le sol et/ou enterrée (PL), lesquelles anomalies ont été préalablement détectées par un dispositif (RTE) circulant à l'intérieur de ladite structure creuse, et positionnées par comptage, à partir d'une origine, de repères situés à intervalles réguliers accessibles à l'intérieur et à l'extérieur de ladite structure creuse (PL), lequel procédé consiste à : a. définir par comptage, à partir de la même susdite origine, un repère accessible à l'extérieur de la structure creuse, b. positionner un module transpondeur (T) sur le susdit repère, c. identifier le module transpondeur (T) par un code d'identification, d. déterminer le nombre de repères séparant lesdites anomalies et ledit module transpondeur identifié (T).

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