Waypoints
Truck routes are defined by a start point and an end point. Waypoints are either intermediate points along a route or isolated points not associated with a route. A waypoint point is defined by an Easting and a Northing, and possibly an Elevation or RL. A radius defines the perimeter of influence of the waypoint.
A rule can be defined for a waypoint that specifies an action that will occur when a truck reaches that point. For example, if a truck is about to dump ore at a waste dump, an alarm message can be displayed on the truck's mobile screen. Truck movements past a waypoint are recorded in the Pitram database.
The screenshot above shows truck routes and the waypoints along those routes. You can view the (Name, Easting, Northing, Elevation, Radius) properties of a waypoint by clicking on it in the display.
Waypoint Rules
A waypoint rule is a feature of a waypoint. It defines a set of criteria that, if met, will result in an action—for example, if A and B, then C. Each waypoint can have a different set of rules: some waypoints can have no rules. For example, if TruckA has a cycle status = Hauling and it passes WaypointA the rule, defined with the waypoint, sends it to DumpA. WaypointB and WaypointC may have different waypoint rules defined.
The rules are defined on the Waypoint Rules tab of the waypoint token dialog. This can be found by going to Groups | Configuration Items | Locations | Waypoint on the navigation pane in Reference Edit.
If the site is using a Mobile GPS system, and a unit of equipment enters the zone of influence of a waypoint, and if it meets the criteria defined for the waypoint, an action will be executed. For example, the following actions could be applied:
| Criteria | Action |
|---|---|
| Cycle Status: Queuing at Dump | Raise an alarm if the truck is about to dump waste on an ore dump. |
| Cycle Status: Hauling | Allocate the truck to a particular destination. |
| Equipment Model:Caterpillar 385CL | Exclusion alarm: this unit of equipment should not be in the area. |
| Primary Status: Backfilling, Bogging, Bolting | Exclusion alarm: unit of equipment with either of these states should not be in the area. |