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Robot Lawn Mower RTK Without Boundary Wire

RTK GNSS for robotic lawn mowers replaces the boundary wire with virtual boundaries and centimetre positioning. Eview offers the HBEV322 smart antenna and the compact HB50 and HB52 receivers, powered by Septentrio mosaic-G5 modules with AIM+ anti-jamming, plus the HBEV11 or HB62 as a local base station for gardens, parks and sports fields.

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0.6 cm
RTK accuracy + 0.5 ppm
~7 s
RTK initialisation
20 Hz
Output (mosaic-G5)
0.44 W
Power draw (HB50)
What mowers need

What a robotic mower needs from its GNSS receiver

No boundary wire
Virtual boundaries drawn in an app replace buried perimeter wire. RTK accuracy of 0.6 cm + 0.5 ppm lets the mower follow lawn edges and keep out of flower beds. See RTK positioning.
A fix under trees and near houses
Gardens have trees, hedges and walls that block and reflect signals. Multi-constellation tracking with APME+ multipath mitigation and LOCK+ helps the mower keep or quickly regain its RTK fix. See multi-constellation receivers.
Straight mowing lines
Clean parallel stripes need accurate heading. The HBEV322 adds a QMC5883L compass, and the HB52H dual-antenna variant gives a GNSS heading that is not disturbed by the blade motor or batteries.
A local base station
A base in the garden or on a clubhouse roof sends corrections over a short radio or Wi-Fi link. The HBEV11 works as base or rover, and the HB62 serves NTRIP to larger sites. See base receivers.
Compact and low power
Battery-powered mowers need small, efficient receivers. The HB50 measures 59 × 44 × 12 mm, weighs 50 g and draws 0.44 W, while the HB52 is 48 × 35 × 12.6 mm with USB-C.
Resistance to interference
Wi-Fi routers, charging stations and motor drives create RF noise around the mower. Septentrio AIM+ suppresses interference, and Galileo OSNMA authenticates the satellite signals. See anti-jamming receivers.
Recommended products

Eview receivers and base stations for robotic mowers

ProductBest forKey specs
HBEV322 / HBEV322HConsumer and prosumer mowers, one compact unitmosaic-G5 receiver, antenna and QMC5883L compass in one housing, GH1.25 connector, 20 Hz
HB50Mowers with a separate antenna and a tight power budgetmosaic-G5 P3, 59 × 44 × 12 mm, 50 g, 0.44 W, 20 Hz
HB52 / HB52HCompact mowers and professional turf robotsmosaic-G5, 48 × 35 × 12.6 mm, USB-C, microSD; HB52H adds dual-antenna heading
HBEV11 smart antennaLocal base station for a garden or estateReceiver plus full-band antenna, mosaic-G5, base or rover, one M12 cable, Galileo HAS
HB62 baseFixed base for parks, golf courses and mower fleetsRugged base, mosaic-X5, NTRIP, Ethernet, 64 GB logging, IP67, 9–36 V

All products are quote-based. For a complete datasheet, email sales@gnss-solutions.com. Browse all smart antennas, box receivers and rugged base receivers.

Key facts

Robot lawn mower RTK: key facts

A robot lawn mower with RTK GNSS uses correction data from a base station or NTRIP service to find its position to about 2 cm, so it can mow inside virtual boundaries without a buried wire.

  • Accuracy: about 1 to 2 cm with RTK in open sky
  • Boundaries: virtual GPS fence instead of boundary wire
  • Signals: multi-band GPS, GLONASS, Galileo and BeiDou for gardens with trees and houses
  • Heading: dual-antenna option for straight stripes from standstill
  • Corrections: own base station or NTRIP network
  • Interference: AIM+ anti-jamming and anti-spoofing
Use cases

Robotic mowing applications

Residential gardens
Wire-free mowers for private gardens, with virtual boundaries, no-go zones and corrections from a nearby base or NTRIP service. See wire-free RTK mowers.
Parks and public green space
Municipal fleets mowing large areas on repeatable paths, with one HB62 base serving corrections to several mowers over NTRIP.
Sports fields
Accurate mowing patterns on football, rugby and cricket pitches, where straight stripes and clean edges matter to groundskeepers.
Golf courses
Fairway and rough mowing robots working across open ground and tree-lined holes, helped by multipath mitigation. See survey and GIS for course mapping.
Solar farm vegetation
Mowing robots working between solar panel rows, where accurate paths prevent contact with structures. See inspection and patrol.
Line-marking robots
Sports-field line-marking robots use the same compact RTK receivers to paint pitches to plan. See outdoor robots.
Integration

Easy to integrate

Mower controllers
UART or USB-C output in NMEA and Septentrio SBF, ready for the mower’s navigation board. See GNSS boards for robotics.
Corrections
RTCM v3 from your own HBEV11 or HB62 base, or from an NTRIP caster or CORS network. See NTRIP and RTCM.
Logging and firmware
Raw data logging to microSD on the HB52 for field testing and RINEX conversion. Firmware and manuals are on firmware downloads.
Use cases

RTK lawn mower robots for every kind of grass

RTK GNSS lets a robotic mower follow virtual boundaries instead of a buried wire. Eview receivers and smart antennas give mowers centimetre position and heading, even near trees and houses.

No boundary wire mower GPS
A wireless lawn mower with RTK GPS uses a virtual GPS fence instead of buried cable. Change the boundary in an app instead of digging.
Commercial mowing robots
Commercial mowing robots for parks, campuses and solar farms need repeatable stripes and full coverage of large areas.
Golf course robotic mowers
Golf course robotic mowers cut fairways and roughs to exact patterns and keep clear of greens and bunkers.
Sports field robotic mowers
Soccer field robotic mowers keep pitch lines and stripes straight every week, and some line-marking robots use the same RTK position.
Slope and orchard mowing
Slope mowing robots and orchard mowing robots work under trees and on banks, where multi-band tracking and heading help most.
Robot lawn mower RTK module
For mower makers, a compact RTK module or OEM board fits inside the mower body, with a base station or NTRIP for corrections.

Related: GNSS for robotics, precision agriculture GNSS and NTRIP and RTCM guide. Further reading: RTCM correction standards, Galileo High Accuracy Service (EUSPA). Email sales@gnss-solutions.com.

FAQ

Robotic mower GNSS: frequently asked questions

Can a robotic lawn mower work without a boundary wire?

Yes. With RTK GNSS the mower knows its position to about a centimetre, so boundaries and no-go zones are stored as virtual maps instead of buried wire. The mower needs RTCM v3 corrections from a local base station or an NTRIP service, and a reasonably clear view of the sky.

Do I need my own base station for an RTK mower?

Not always. Where a reliable NTRIP or CORS service is available, the mower can use it over LTE or Wi-Fi. A local base, such as the HBEV11 smart antenna, gives independence from mobile coverage. For parks and golf courses, the HB62 rugged base can serve corrections over NTRIP to several mowers.

How does RTK work under trees and near houses?

Trees, walls and roofs block and reflect satellite signals, which can cause the RTK fix to drop. Multi-constellation, multi-frequency tracking, APME+ multipath mitigation and LOCK+ help the receiver keep or quickly regain the fix, with RTK initialisation in about 7 s. Many mowers also use wheel odometry and an IMU to bridge short gaps.

Which Eview receiver should I use in a mower?

The HBEV322 smart antenna is the simplest choice: receiver, antenna and compass in one housing with a single GH1.25 connector. If you prefer a separate antenna, the HB50 is small and draws only 0.44 W. The HB52H adds dual-antenna heading for straight mowing lines.

Is the mower protected against GNSS interference?

Septentrio AIM+ detects and suppresses interference from nearby Wi-Fi routers, chargers and motor electronics, and Galileo OSNMA authenticates the satellite signals against spoofing. This helps keep RTK available in residential areas with dense RF noise. See anti-jamming vs anti-spoofing.

What is a robot lawn mower RTK module?

It is a small multi-band GNSS receiver that uses RTK corrections to give the mower centimetre position. It replaces the boundary wire with virtual boundaries and lets the mower cut straight, repeatable lines.

Can RTK robotic mowers work on golf courses and sports fields?

Yes. Golf courses and sports fields are open-sky areas where RTK works very well, and centimetre accuracy keeps mowing patterns and keep-out zones exact.

Related reading

RTK lawn mower robots without boundary wireGalileo HAS with mosaic-G5 P3H: field resultsOutdoor mobile robot positioning

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