servo motors - FAULHABER - DC Motors & Micro Drive Systems
a blue team always compete against each other (further information from www.robocup.org). The "strip" is a coloured badge 50 mm in diameter in the centre of the robot's upper side. There are also further markings, e.g. to identify the
individual servo motors servo motors - FAULHABER - DC Motors & Micro Drive Systems players. Depending on the system, the
robots can navigate independently, or be controlled via an Whats a servo: A quick tutorial external vision computer and radio. The playing field is recorded from
above by camera. Human interventions are not allowed, only introduction to or removal from servo motors the playing field is
permitted.
Robot with colour identification and radio antenna
The action
of kicking the ball via an electromagnet
with a "kicking stick" is also computer-controlled. The ball achieves speeds of up to 12 m/s, i.e. approx. 45 km/h, thanks to the
capacitor discharge into the coil. Therefore, servo motors nippy goalkeepers are simply a must.
Given these challenging conditions, it would appear obvious that customised solutions are the only choice if one is to succeed. The FU Berlin team therefore servo motors built its team from individual components.
The manager, Professor Raúl Rojas, commented: "The system is only as stable as each individual servo motors component. For this reason, we as developers concentrated on a simple but sturdy design. Potentially, any individual part may fail – thus increasing the probability of failure of the entire servo motors team." For robots too, the maxim applies: He who wishes to win must first reach the finishing-line.
The system, consisting of an external control computer, wireless data transmission to the internal robot electronics and a drive mechanism is still very complex. The success of the team at the RoboCup bears testimony to the ingenuity of its design. After three runner-up world championship positions, the much sought-after title has finally been attained.
A perfect solution: omni-directional wheels
with flanged-on motor/gearbox unit.
Sprinters and dribblers
The robots are driven by four omni-directional wheels; each wheel has a series of smaller wheels distributed over the perimeter transverse to the direction of travel.
The advantage of this arrangement is the possibility of direct control. As each of the four wheels is driven by its own motor, to change direction, the appropriate motor is simply switched off. The robot then travels linearly in the desired direction "via" the small wheels of the drive-less wheel. "Curves", as with car steering are thus not required, and manoeuvrability is increased, even in the most restricted spaces. As the drive source, the experts use precious metal-commuted DC-motors developed by FAULHABER. The motors in the 2224 SR series with integrated IE2 pulse generator (64 pulses/revolution) are used with matching 20/1 metal planetary gearheads. The compact unit eliminates the need for further components and allows high-precision control. As the field players must quickly cover larger distances, they have a smaller gear reduction, at 14:1, than the nippier goalkeeper with 19:1. Thus, despite the small playing field, the robots reach speeds of 3 to 4 m/s, with a weight of 1.8 kg. Naturally, this performance cannot
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