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Differential Wheeled Robot
A differential wheeled robot is a mobile robot whose movement is based on two separately driven wheels placed on either side of the robot body. It can thus change its direction by varying the relative rate of rotation of its wheels and hence does not require an additional steering motion. Robots with such a drive typically have one or more castor wheels to prevent the vehicle from tilting. Details If both the wheels are driven in the same direction and speed, the robot will go in a straight line. If both wheels are turned with equal speed in opposite directions, as is clear from the diagram shown, the robot will rotate about the central point of the axis. Otherwise, depending on the speed of rotation and its direction, the center of rotation may fall anywhere on the line defined by the two contact points of the tires. While the robot is traveling in a straight line, the center of rotation is an infinite distance from the robot. Since the direction of the robot is dependent on th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rotation Of Axes
In mathematics, a rotation of axes in two dimensions is a mapping from an ''xy''-Cartesian coordinate system to an ''x′y′''-Cartesian coordinate system in which the origin is kept fixed and the ''x′'' and ''y′'' axes are obtained by rotating the ''x'' and ''y'' axes counterclockwise through an angle \theta . A point ''P'' has coordinates (''x'', ''y'') with respect to the original system and coordinates (''x′'', ''y′'') with respect to the new system. In the new coordinate system, the point ''P'' will appear to have been rotated in the opposite direction, that is, clockwise through the angle \theta . A rotation of axes in more than two dimensions is defined similarly. A rotation of axes is a linear map and a rigid transformation. Motivation Coordinate systems are essential for studying the equations of curves using the methods of analytic geometry. To use the method of coordinate geometry, the axes are placed at a convenient position ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thymio
Thymio II is an educational robot in the 100 Euros price range. The robot was developed at the EPFL in collaboration with ECAL, both in Lausanne, Switzerland. A purely-visual programming language was developed at ETH Zurich . All components, both hardware and software, are open source. The main features of the robot are a large number of sensors and actuators, educational interactivity based on light and touch, and a programming environment featuring graphical and text programming. Thymio has over 20 sensors and 40 lights and integrates with third party languages such as MIT's Scratch. One of the unique features of these robots is its design, production, and commercialization by a full open-source and non-profit chain of actors. This very alternative approach has been justified by the educational goal of the project. The design has been mainly made by universities (EPFL, écal and ETHZ) within research programs (NCCR Robotics). Mechanics, electronics and software are open source. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RoboMow
Robomow (also known as Friendly Robotics) is a manufacturer of robotic lawn mowers. Founded in Even Yehuda, Israel in 1995 by Udi Peless and Shai Abramson, the company provides robotic lawnmowers to the United States and Europe, with prices ranging from hundreds to thousands of dollars/Euros. Robomow mowers are rechargeable, environmentally-friendly designed to meet all safety standards. Robomow also comes with its own mobile application (the Robomow app) for remote and interactive control. The company has been mentioned in several magazines including: Design News, Business Wire, Washington Home and Garden and Vanity Fair. In May 2017, MTD Products Inc announced their intent to purchase Friendly Robotics. In July 2017, MTD Products announced the completion of the purchase of Robomow. History Robotic Lawn Mowers Robomow was originally named ‘Friendly Machines’ with the goal of constructing robots that will, as Udi Peless says in Space Daily, "move in and around the home, d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roomba
Roomba is a series of autonomous robotic vacuum cleaners made by the company iRobot. Introduced in September 2002, they have a set of sensors that enable them to navigate the floor area of a home. These sensors can detect the presence of obstacles, particularly dirty spots on the floor, and steep drops (e.g., to avoid falling down stairs). As of 2022, iRobot markets models of their 600, i, j, Combo and s9 series, while continuing to provide support and sell accessories for their previous series. Various models have different features, including tangle-free brushes, separate sweep canisters, more powerful vacuums, obstacle avoidance, and performance maps displayed via smartphone apps. Newer high-end models also have a camera, which works in conjunction with onboard mapping and navigation software to systematically cover all floor area, move from room to room, avoid obstacles such as pet waste and charging cables, and find recharging bases and beacons. Roombas allow some customi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alice Mobile Robot
The Alice is a very small "sugarcube" mobile robot (2x2x2cm) developed at the Autonomous Systems Lab (ASL) at the École Polytechnique Fédérale de Lausanne in Lausanne, Switzerland between 1998 and 2004. It has been part of the Institute of Robotics and Intelligent Systems (IRIS) at ETH Zurich, Swiss Federal Institute of Technology in Zürich (ETH Zurich) since 2006. It was designed with the following goals: * Design an intelligent mobile robot as cheap and small as possible * Study collective behavior with a large quantity of robots * Acquire knowledge in highly integrated intelligent system * Provide a hardware platform for further research Technical specifications Main Features * Dimensions: 22 mm x 21 mm x 20 mm * Velocity: 40 mm/s * Power consumption: 12 - 17 mW * Communication: local IR 6 cm, IR & radio 10 m * Power autonomy: up to 10 hours Main Robot * 2 SWATCH motors with wheels and tires * Microcontroller PIC16LF877 with 8Kwords ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sbot Mobile Robot
The s-bot is a small (15 cm) differential wheeled (with additional tracks) mobile robot developed at the LIS (Laboratory of Intelligent Systems) at the EPFL in Lausanne, Switzerland between 2001 and 2004. Targeted to swarm robotics, a field of artificial intelligence, it was developed within the Swarm-bots project, a Future and Emerging Technologies project coordinated by Prof. Marco Dorigo. Built by a small team of engineers (Francesco Mondada, André Guignard, Michael Bonani and Stéphane Magnenat) of the group of Prof. Dario Floreano and with the help of student projects, it is considered at the time of completion as one of the most complex and featured robots ever for its size. The s-bot was ranked on position 39 in the list of “The 50 Best Robots Ever” (fiction or real) by the Wired magazine in 2006. Purpose and use of the s-bot This is a research robot, aimed at studying teamwork and inter-robot communication. To do this, the s-bots have several special abilit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
E-puck Mobile Robot
The e-puck is a small (7 cm) differential wheeled mobile robot. It was originally designed for micro-engineering education by Michael Bonani and Francesco Mondada at the ASL laboratory of Prof. Roland Siegwart at EPFL (Lausanne, Switzerland). The e-puck is open hardware and its onboard software is open-source, and is built * a turret that simulates 1D omnidirectional vision, to study optic flow, * ground sensors, for instance to follow a line, * color LED turret, for color-based communication, * Zigbee communication, * 2D omnidirectional vision, * magnetic wheels, for vertical climbing, * Pi-puck extension board, for interfacing with a Raspberry Pi single-board computer. Scientific use Since the e-puck is open hardware, its price is lower than competitors.the e-puck costs around 950 CHF at time of writing, while the Khepera is around 3000 CHF This is leading to a rapid adoption by the scientific community in research [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Khepera Mobile Robot
The Khepera is a small (5.5 cm) differential wheeled mobile robot that was developed at the LAMI laboratory of Professor Jean-Daniel Nicoud at EPFL (Lausanne, Switzerland) in the mid 1990s. It was developed by Edo. Franzi, Francesco Mondada, André Guignard and others. Small, fast, and architectured around a Motorola 68331, it has served researchers for 10 years, widely used by over 500 universities worldwide. Scientific impact The Khepera was sold to a thousand research labs and featured on the cover of the 31 August 2000 issue of Nature. It appeared again in a 2003 article. The Khepera helped in the emergence of evolutionary robotics. Technical details Original version * Diameter: 55 mm * Height: 30 mm * Empty weight: 80 g * Speed: 0.02 to 1.0 m/s * Autonomy: 45 minutes moving * Motorola 68331 CPU @ 16 MHz * 256 KB RAM * 512 KB EEPROM * Running µKOS RTOS * 2 DC brushed servo motors with incremental encoders * 8 infrared proximity and ambie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PatrolBot
PatrolBot is a programmable autonomous general purpose service robot rover built by MobileRobots Inc. PatrolBots are manufactured in various configurations and serve as bases for companies developing delivery robots, security robots, environmental monitoring rovers, robot guides and other indoor service robots. Capabilities of PatrolBot PatrolBot can scan buildings, create floor plans and navigate them autonomously using a laser range-finding sensor inside the robot. It employs Monte Carlo/Markov-style localization techniques using a modified value-iterated search technique for navigation. It searches for alternative paths if a hall is blocked, circumnavigates obstacles and re-charges itself at its automated docking/charging station as needed. Using a Wi-Fi system the device can operate autonomously or be controlled remotely. Applications PatrolBot is a robotic base used for delivery, security, sensor monitoring, inspection and guidance tasks. It is a reference platform ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angular Velocity
In physics, angular velocity or rotational velocity ( or ), also known as angular frequency vector,(UP1) is a pseudovector representation of how fast the angular position or orientation of an object changes with time (i.e. how quickly an object rotates or revolves relative to a point or axis). The magnitude of the pseudovector represents the ''angular speed'', the rate at which the object rotates or revolves, and its direction is normal to the instantaneous plane of rotation or angular displacement. The orientation of angular velocity is conventionally specified by the right-hand rule.(EM1) There are two types of angular velocity. * Orbital angular velocity refers to how fast a point object revolves about a fixed origin, i.e. the time rate of change of its angular position relative to the origin. * Spin angular velocity refers to how fast a rigid body rotates with respect to its center of rotation and is independent of the choice of origin, in contrast to orbital angular ve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
