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Personal Node User Manual Section 3 About the Personal Node

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Rev: 1.1

Minete

3 ABOUT THE PERSONAL NODE

--- Personal vigilance is paramount ---

Although the Personal Node provides audible and visible warnings, responsibility for

any intervention or action remains with the wearer.

The Minetec Personal Node is a battery-powered wireless device worn by personnel and designed for

use in harsh mining environments. Personal Nodes are used in Minetec’s:

• SafeDetect™, a high-precision proximity detection solution for vehicles and pedestrians.

• Trax™, a tracking and positioning solution, enabling high-precision positioning and tracking.

If both solutions are deployed, Personal Nodes provide combined positioning, tracking and proximity

detection for personnel.

Table 6 Function overview (defaults) on page 18 lists the Personal Node features as they apply to each

of the solutions. See Table 3 Personal Node specifications on page 11 for further information.

All Minetec nodes use the CSIRO

Wireless Ad-hoc System for Positioning (WASP) technology including

Time of Arrival (ToA) techniques for accurate ranging.

Personal Nodes operate in the following wireless bands:

• 5.8 GHz for WASP.

• 2.4 GHz wireless band creating wireless mesh networks.

Table 1 Wireless technology

Solution 

SafeDetect

Trax

SMARTS^

Purpose 

Proximity

awareness

Tracking / Positioning

Productivity /

Scheduling

5.8 GHz WASP

Personal Node and

Mobile Node

Infrastructure

2.4 GHz mesh

2.4 GHz Wi-Fi

In-Vehicle PC

Infrastructure for comms and data backhaul

^SMARTS is a productivity and scheduling solution and does not use Personal Nodes.

3.1 Design Philosophy

SafeDetect aligns with elements of the EMERST Design Philosophy (DP-5) for Machine Operation

Controls and the Performance Requirement (PR-5A) for Vehicle Interaction Systems as described in the

SafeDetect Operator User Guide. Refer EMESRT alignment on page 70 for details.

The Personal Node is used to mitigate potential unwanted vehicle interactions known as PUE 1

Equipment to Person. This is only possible if all vehicles use In-Vehicle PCs.

Commonwealth Scientific and Industrial Research Organisation, the Australian federal government scientific research

agency.

Personal Nodes

do not

use standard 2.4Ghz Wi-Fi.