XGRIDS Pro Guide™ / Module 3: Field Technique

3.6 Route Planning Visual

Interactive diagram showing backbone-first scan routing, target placement, and RTK strategy applied to a large data center.

Visual Reference

How to Read This Plan

This diagram uses 2 pods of a data center as the example. Any multi-zone facility such as warehouses, hospitals, campuses, and commercial buildings all follow similar route planning principals. Scan the backbone first as a loop covering the main corridor and center cross-aisle. Then capture each zone as its own session with overlap. Where possible, start and end every session outdoors where RTK has satellite coverage.

This page is a visual companion to 3.2 Route Planning and 3.5 Data Centers, which cover the full rationale and technique details. Read those sections first. Use this plan as a field reference.

Interactive Diagram

Data Center (2 Pod Example)

OUTSIDE OUTSIDE POD A POD B C1 H1 C2 H2 C3 H3 C4 H4 SERVER RACKS C5 H5 C6 H6 C7 H7 C8 H8 SERVER RACKS ADDITIONAL ZONES: SAME METHOD ∞ ∞ ∞ ∞ ∞ ∞ ∞ ∞ ∞ ∞ ∞ ∞ ∞ ∞ ∞ ∞ ∞ 2 START + END 1 START + END 3 START + END RTK RE-FIX MAIN ACCESS CORRIDOR 1 2 3 MAX SPEED: 0.5 m/s (1.5 ft/s) ~100 ft
Target Network

Target Types

OUTDOORINDOORGCP 1GCP 2WALK THROUGHWALL

Threshold GCP Pair

1 sticker outdoors and 1 indoors at each building entry. Mark both in LixelGO while RTK carry-in is active. These anchor the coordinate frame at the transition.

REFLECTIVE STICKERraised floor tile

Floor GCP Sticker

Circle once, set scanner on target, hold stationary for a few seconds while pointing toward the area with the most features, then mark in LixelGO. Maximum 100 ft apart for L2 Pro in data center aisles. 50 ft for K1.

rack endMAGNETIC BASE

Magnetic Checkerboard Plate

Attaches to rack uprights, steel columns, containment framing. Face toward aisle centerline. Keep away from hot-aisle vents.

100 MM SPHEREpermanent tribrach mount

Reference Sphere (Permanent Option)

Mount can stay installed with the spheres kept with the scanner kit.

GCPs can be made permanent. Both indoor and outdoor control points can use permanently installed markers. For facilities that will be rescanned on a recurring schedule, leaving GCP stickers, magnetic plates, and sphere mounts in place between campaigns eliminates repositioning error and reduces setup time on every return visit.

Reference

Legend and Key Specifications

Scan Routes

Session 1: Backbone cross
Session 2: Pod A
Session 3: Pod B
Direction of travel
∞
Loop closure (line intersection)

Target Network

Threshold GCP (entry pair)
Floor GCP sticker
Magnetic checkerboard
Reference sphere

Zones

Exterior / sky view
Corridor anchor zone
Session overlap zone

System Specifications

GCP spacing (L2 Pro, data center)≤ 100 ft
GCP spacing (K1)≤ 50 ft
Session overlap minimum≥ 50 ft
RTK carry-in range~330 ft from entry
Walking speed (indoor/aisle)0.5 m/s max
Rows per session2 to 4
Map Fusion segment limit10 segments
Map Fusion total time limit200 minutes
Map Fusion per-segment limit20 minutes
RTK initialization route33 x 33 ft L-shape minimum

Return to the full Data Centers guide for technique details, target placement rationale, and advanced trajectory design.

3.5 Data Centers →
Previous3.5 Data Centers Next4.0 Module Field Guide

©2026 Alpine Reality Capture LLC  •  XGRIDS Pro Guide™  •  Site Disclaimer