RTK, Vision and LiDAR Robot Mower Navigation Explained

RTK stands for real-time kinematic positioning. The mower receives satellite signals like any GPS device, and a fixed reference antenna on your property sends corrections that reduce the error from meters to centimeters. The Navimow i105N listing describes customized RTK with vision enhancement and ships a GNSS antenna kit in the box. Some newer records describe network RTK, where corrections arrive over a data connection instead of from an antenna in your garden.

What RTK needs from you is sky. The reference antenna must see satellites, and so must the mower as it travels. Sellers describe fallbacks for shade: the Navimow record mentions vision, and the Husqvarna 410iQ listing names its own positioning system, EPOS, with onboard radar for obstacles. Centimeter-level accuracy is the seller's figure for good conditions. We have not measured it, and our boundary comparison explains why a wire may still be the right answer under heavy tree cover.

Vision navigation uses one or more cameras and software that distinguishes lawn from non-lawn and recognizes obstacles. The eufy E15 listing describes stereo cameras, visual SLAM mapping and no external station. Vision avoids the antenna, but it depends on light and on visual contrast. The same eufy record states lawn requirements: grass under a stated height, slope under a stated angle and exclusions for particular grass species. Read those conditions as part of the navigation specification.

Obstacle claims are usually expressed as a number of recognized object types. That describes the training of the recognition system, not the outcome with a specific object at a specific angle. Listings themselves often pair vision with a physical bumper, which tells you the seller expects contacts to occur. Our supervision guide treats every detection statement as a reason for caution, not a substitute for keeping people and animals away from a running blade.

LiDAR emits light pulses and measures how long they take to return, building a three-dimensional picture of nearby objects. The ECOVACS Goat O1000 LiDAR PRO listing describes dual LiDAR mapping with no perimeter wire and no RTK antenna, and positions the approach as working under trees. Other records combine LiDAR with cameras, describing a 360-degree field of view and obstacle detection at distance. LiDAR needs surfaces to reflect from; a wide open field with nothing nearby gives it less to measure than a fenced suburban yard.

Because LiDAR does not depend on satellites, sky view matters less, but the map still has to be built and maintained. Ask how the mower handles seasonal changes, new furniture or a moved trampoline, and whether the map needs re-recording. The manual, not the listing, holds those procedures. Our setup guide lists the placement questions that apply whichever sensor the mower carries.

Most current listings describe combinations: RTK plus vision, LiDAR plus vision, or all three with GPS for anti-theft tracking. We record every named technology from the exact listing as seller wording and display it on the product page with its source phrase. We do not award points for one acronym over another, because the listing does not contain a positioning test and we have not performed one. The methodology explains that the score combines review evidence and documentation completeness only.

That policy matters when comparing neighbors. Two mowers may both state RTK and vision, yet one may include the antenna and the other sell it separately; one may state a network RTK subscription and the other a local station. Those differences change what you install and what you pay over time. Compare package lists and manual requirements, not acronym counts, and use the wire-free comparison as a list of candidates rather than a verdict on navigation quality.

Where does the reference antenna or station go, and what sky view does the manual specify? What happens when positioning is lost: does the mower stop, retreat to the base or continue on cameras? How is the map recorded, and how long does the manual say it takes? Are there lawn conditions the seller excludes, such as grass height, species or a maximum slope? Is a data connection or subscription needed for corrections or for the app?

Write each answer next to its source. If a question has no documented answer for the exact model, leave it blank and ask the manufacturer before ordering. The buying checklist puts these questions in sequence with the lawn measurements, so a navigation decision follows from the property rather than from the most technical-sounding title.