User's Manual

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IDS Ingegneria Dei Sistemi S.p.A. Protocol: MN/2009/030 - Rev. 1.2

Safe Rail System Data Acquisition Software

decreasing coordinate direction. In any case, you must return back

to the same starting axis used for the forward scan.

Coordinate (m)

: This field allows you to insert the values of the

set T or L co-ordinate. Remember to indicate if a coordinate is

negative. Check the current T or L coordinate on the site and insert

it into the relative field. Remember that, despite the actual

dimensions of the antenna trolley, it is represented in the Cartesian

reference system by a single point that corresponds to its

centerpoint. The position of this point varies depending on the

array configuration that has been set. When moving the antenna

trolley, make sure the centerpoint is on the scan line, at the defined

coordinate.

 Coord. value

: insert the value of the coordinate to be

maintained constant during the scan in this field.

 Coord. Step

: this field contains the step value that is added

automatically to the current value when a scan is finished,

leaving the system ready to start the next scan. The preset value

= 2 m between scans. For example, if a longitudinal scan has

been chosen and it starts from a point with coordinates

T, L

0;+2 m, the following values must be set:

•

Longitudinal;

•

2 in the Coord value field;

•

2 in the Coord. Step field.

Once the scan is finished, the coordinate of the L value is

automatically positioned on the value 4.

BE CA REFUL

The Antenna array may only be moved in one direction. It may only be

pulled or pushed in the direction of increasing scanning coordinates, the

only exception being when the

Inverse Direction

field is activated

vi.

Scan Offset (m)

: each radar scan is characterised by an initial L

and/or T co-ordinate Therefore, once you have inserted the starting

point co-ordinate for the investigation (“

coord. value

” in Fig. 6-9)

as a function of the type of scan, the other reference co-ordinate

must be defined in the “

Scan Offset (m)

” field. There are two

alternatives for this operation:



Select “

With 1st Marker 1 step

”: this selection automates

the insertion of the second L or T co-ordinate when the

antenna array crosses the zero line starting from a negative

co-ordinate. This procedure is normally used when there are

many irregularities on the site such as parked cars, indents