Tell your robot what to do. Quatern writes the code and makes sure it works.

Navigation, mapping, and localization, tested on your robot's real sensor data before it moves and watched while it runs.

Request a pilot Read the docs

Try it free

$ pipx install quatern
$ quatern

quatern · turtlebot4

reading the robot config and the lidar's /scan topic

✓ wrote lidar_stop.py

+ def on_scan(scan): + ahead = scan.ranges(-15, 15) + if min(ahead) < STOP_DISTANCE: + robot.stop()

✓ verified on the recorded drive

stops 0.5 m before obstacles

◆ proceed past the gate? the robot will move [y/N]

running, watchdog on track

✓ run recorded

Works with

ROS 2
TurtleBot
Universal Robots arms
NVIDIA Jetson
Python and C++

Built for robots that work in the real world.

Delivery rovers, warehouse robots, robot arms, and research platforms. If it has sensors and moves, Quatern can write its software and check it against what the sensors actually see.

The kind of robot Quatern is built for. Stock footage, not a Quatern demo.

How it works

Step 1
Writes it
Describe what you want in plain English. The agent writes localization, mapping, and planning for your robot, in any language.
Step 2
Proves it
Every module runs against your robot's real recordings, and every sensor is cross-checked, before anything moves.
Step 3
Watches it
A live watchdog follows the robot while it runs, and every run leaves a record of what happened.

Stops the robot before anything goes wrong.

While the robot moves, Quatern compares where it should be with where its sensors say it is. If they drift apart, it stops the robot.

Nothing deploys to a real robot without a person approving it
Stops on drift, a sensor that goes quiet, or a sensor that disagrees with the others

Drift is the gap between where the plan says the robot should be and where its sensors say it is.

Have a robot? Let's get it running.

Tell us about your robot, and we'll get it running with you.