Robotic Highway Safety Markers

The Robotic Highway Safety Markers system was developed by Shane Farritor a Professor at University of Nebraska-Lincoln. The Robotic Safety Barrel (RSB) replaces the heavy base of a typical safety barrel with a mobile robot. The mobile robot can transport the safety barrel and robots can work in teams to provide traffic control. Independent, autonomous barrel motion has several advantages.

First, the barrels can self-deploy, eliminating the dangerous task of manually placing barrels in busy traffic. To save costs, the robots work in teams. A more expensive "shepherd" robot with built-in Global Positioning System (GPS) navigation would position itself precisely, and then guide the placement of less expensive units, which measure out their positions based on wheel movement (a "dead reckoning" system). In tests, the robots were able to deploy themselves just about as well as humans could place them - their big wheels let them turn on a dime.

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US Digital's New L2 Low Profile Motor Encoder

US Digital's New L2 Low Profile Motor Encoder

The L2 incremental encoder uses US Digital's proven EM1 optical encoder module and disk, which has billions of device-hours of dependable service in customer applications. This product continues US Digital's strong reputation for reliable, field-tested encoders. The L2 is US Digital's lowest height encoder that uses the EM1 module. It has a 0.75 in. bolt-spacing mount. The maximum resolution is 1250 CPR (5000 PPR with quadrature). The L2 comes with a single-ended output. Another benefit of the L2 incremental encoder is its fast installation. The cover snaps onto the base to secure the module. It is designed for use with a high-retention connector or cable (sold separately). Like all US Digital products, the L2 is designed and manufactured in Vancouver, Washington, USA. It is backed by prompt access to our technical and customer service teams with same-day shipping on most orders.