Robotics Company Chooses Piksi Multi & Duro for Centimeter-Level GNSS in Self-Driving Snow Clearing Robots

Overview

Left Hand Robotics was founded with the mission to produce safe, reliable autonomous robots designed to perform physically demanding outdoor tasks. Based in Longmont, Colorado, Left Hand Robotics’ innovative automation and advanced technology solutions for outdoor operations allow businesses to reduce labor costs. The Left Hand Robotics founding team brings over five decades of experience in software and robotics to address difficult problems such as snow removal.

Left Hand Robotics Snowbot Pro
Photo Credit: Left Hand Robotics

Challenge

The challenges around outdoor snow removal are two-fold. First, businesses and commercial sites must keep walkways and pathways clear for safety reasons and they face a labor shortage of those willing and able to do such incremental work. This challenge is addressed by looking at autonomous solutions that do not require physical labor to complete snow removal tasks.

Second, creating an autonomous robotic solution that can perform the task has limited margins for navigation error. Often, sidewalks and walkways have landscaping, walls, curbs and other obstacles that would be damaged were a robot to run over or into it. GNSS technology with centimeter-level accuracy is required to ensure a robot avoids obstacles and stays on its designated route.

Solution

Left Hand Robotics found real-time kinematics (RTK) GNSS to be the solution to its centimeter-level accuracy needs. This level of accuracy keeps the robot in its designated path and allows its base robot platform to navigate in a variety of environments — whether in lines (e.g., sidewalks, bike paths) or large open areas (e.g., fields, parks). Finding a reliable RTK GNSS solution was critical given that many sidewalks are near buildings and underneath trees.

Swift Navigation’s Piksi Multi is the solution to Left Hand Robotics’ navigation needs and allows it to achieve the desired accuracy and retain a GNSS-fix in challenging conditions and environments. Initially Left Hand Robotics tested a competitive product, but it did not meet performance requirements. After continued evaluation, Left Hand Robotics selected Piksi Multi as its GNSS solution due to both its performance and affordable price. Once Swift’s ruggedized Duro receiver was launched — and could be used by customers as a base station that was required for RTK — Left Hand Robotics had a complete offering for customers. Piksi Multi is installed in each SnowBot Pro and its Path Collection Tools (the tool their customers use to collect the initial path data that the robot will follow) and Duro is used as the base station controlling the SnowBot Pro robot.

“The highly-accurate Piksi Multi and Duro RTK GNSS receivers make it possible for our SnowBot Pro to navigate autonomously and accurately.”
– Terry Olkin, CEO & Co-Founder Left Hand Robotics

Results

SnowBot Pro became available in Winter 2018-2019 and is the only commercial-grade, robotically-driven product for snow removal on the market. Its autonomous capabilities allow SnowBot Pro to clear snow from walkways with a 56 inch wide rotating brush, reducing the number of hand shovelers or snow blower operators needed by up to 80%. Its different attachments for both the front and the rear of the robots allow for a multitude of tasks — snow removal in the front and deicing in the rear. The SnowBot is programmed and then controlled remotely from the cloud via an online dashboard or mobile app and follows its programmed path using GPS, accelerometer and gyroscope technologies for navigation. Sensors detect any obstacles and can instruct the robot to stop to avoid collisions and send instructions about how to bypass obstacles. Location, weather and robot status data is recorded in real time, including before and after photos. This detailed recording helps to minimize insurance and risk management costs that snow removal companies face from potentially costly Slip & Fall insurance claims, while at the same time providing customers with proof of work.

This case study was originally posted by Swift Navigation. Click here to see the full case study.

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About Swift Navigation

Swift Navigation provides precise positioning solutions for automotive, autonomous vehicle, mobile and mass market applications. Since its founding in 2012, Swift has evolved from creating the industry’s first low-cost, high-accuracy, real-time kinematic (RTK) GPS receiver to delivering an ecosystem of GNSS positioning solutions for autonomous applications.

About Canal Geomatics

Canal Geomatics Inc. is the industry-leading distributor of high-precision positioning solutions in North America, specializing in automotive, airborne, rail, marine, UAS and robotics. Our mission is to find the best solution for each unique application and extend premium support to ensure the long-term success of our customers. Canal Geomatics is a proud supplier of precise positioning products from Swift Navigation.

 

Piksi Multi RTK GNSS Receiver

Piksi Multi RTK GNSS Receiver

Piksi Multi is a multi-band, multi-constellation RTK GNSS receiver board that provides centimeter-level accurate positioning at a low cost. Being multi-band means fast convergence times measured in seconds, not minutes. Access to multiple satellite constellations improves availability, reliability and range between base and rover. With Piksi Multi, you’ll benefit from faster system start times and reacquisition, critical to robotic systems. It’s easy to get started with a comprehensive Piksi Multi Evaluation Kit.

 

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Duro Rugged RTK GNSS Receiver

Duro Rugged RTK GNSS Receiver

Duro is a ruggedized multi-band, multi-constellation centimeter-accurate GNSS receiver. It is an enclosed version of the Piksi Multi RTK GNSS receiver. Duro is ideal for agricultural, robotics, maritime, rail and outdoor industrial applications. The easy-to-deploy Duro is protected against weather, moisture, vibration, dust, water immersion and the unexpected that can occur in outdoor long-term deployments.

 

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