3D ground scan system is the most powerful system for detection in Phoenix device, it is developed with a new technology incorporated in the scanner probe called Multi-Ground Scanner or M.G.S in short.

M.G.S with its unique design and large surface with multiple sensors, enable coverage and scanning of larger area in less time but with more accurate results.

3D ground scan system displays the scanning data obtained from M.G.S as 2D visualization on the device screen or as 3D graphics presentation on bundled Android Tablet via Multi Visual Analyzer app as we will explain later.

After selecting the system from the main menu, the device program allowing the user to choose how to display the scan results. There are two options:

1 – Device

This option if selected enable the user to complete the 3D ground scan process using the device LCD screen as the results will display directly on the screen, before that the user must adjust the ground scan settings that include the following options:

• Mode

This option defines the method for conducting the ground scan, meaning how the measurements will be recorded at each scan point.

Here there are two modes:

1. Manual: in manual mode, the recording of scan measurement performed manually by the user using the red button in the main unit of the device.
2. Automatic: in this mode, the device is responsible for taking measuring points automatically

• Path

It expresses the shape of the user’s movement path when conducting a ground scan, there are two types:

1. One Direction: In this case, the scan points are recorded in each scan line in one direction. In other words, the direction of measurements recording is in a specific direction in each scan line, for example, starting from the south towards the north, and so on for each line, meaning that the start points of the scan lines are on the same side.
2. Zig Zag: here the direction of measurements recording in two consecutive scan lines are in opposite directions, meaning that the start points of two consecutive scan lines are on the opposite’s sides.

• Size

It is a dimension of a virtual scanning grid made up of cells, related to the number of scan lines and points in each scan line.

It includes the following two values:

1. Width: it is the width or number of columns in the grid, it same as the scan line count.
2. Height: it is the height or number of rows in the grid, it equal to the number of scan points

• Start Point

It is the starting point for a ground scan within the pre-defined area, and one of the following two options can be chosen:

1. Left: in this case, the scan process starts from the bottom – left corner of the scan area
2. Right: the ground scan will begin from the bottom – right corner of the area

After setting the previously explained ground scan settings, the Scan tab displays a table summarizing the selected settings with a button to start scanning, and the user can press the OK button to actually start the scanning process and record the results.

During the scan process, the measurement in every scan point will be presented visually on screen as a 2D grid consisting of rows and columns of cells and every scan point presented as a cell with 4 sub-cells in specific colors based on the type of target that M.G.S hover in this point.

The table below shows the type of target for each color:

Green	Light Blue	Blue	Yellow	Red
Normal Ground	Small Cavity	Cavity	metal objects	gold

On the left side of the screen near the grid, there are many values presented:

– Current X: it presents the current scan line number or current column number in the grid.

– Current Y: it presents the current scan point or current row number in the grid.

– Value: a numeric value related to measurement in the current scan point.

2 – Tablet

If the user selected this option on the device screen, first he must make a wireless connection between the device and tablet, he must continue the 3D ground scan on the bundled Android tablet.

In this case, the user chooses the same ground scan settings as explained previously, but inside the Multi Visual Analyzer app and the ground scan data visualized as 3D graphics inside the app.

Multi Visual Analyzer app can be installed on any Android tablet or smartphone, it has a simple graphical interface available in 12 languages, it used to adjust settings of ground scan and scan data transmitted in real-time from M.G.S to be presented as 3D graphics with different colors that refer to various target’s types such as metal, cavity or gold like in the previous table.