The intelligent self-balancing scooter has been a household name to the public. FOSJOAS, as one of them, are pretty popular with the masses. FOSJOAS is the sate-of-the-art means of transportation adopting aerospace attitude control theory, fuzzy software algorithm and gyroscope system to maintain balance by leaning forward and backward. Riders can control the vehicle to go forward, accelerate, decelerate, and brake, etc. by leaning forward or backward. Similar to the techniques of riding a bicycle, the riders achieve balance on FOSJOAS by slightly tilting sideways.
The first technology to go into the detail is the gyroscope system. A gyroscope is a spinning wheel or disc in which the axis of rotation is free to assume any orientation. When rotating, the orientation of this axis is unaffected by tilting or rotation of the mounting, according to the conservation of angular momentum. Because of this, gyroscopes are useful for measuring or maintaining orientation. Within mechanical systems or devices, a conventional gyroscope is a mechanism comprising a rotor journaled to spin about one axis, the journals of the rotor being mounted in an inner gimbal or ring; the inner gimbal is journaled for oscillation in an outer gimbal for a total of two gimbals.
Gyroscopes based on other operating principles also exist, such as the electronic, microchip-packaged MEMS gyroscopes found in consumer electronics devices, solid-state ring lasers, fibre optic gyroscopes, and the extremely sensitive quantum gyroscope.
Applications of gyroscopes include inertial navigation systems where magnetic compasses would not work or would not be precise enough , or for the stabilization of flying vehicles like radio-controlled helicopters or unmanned aerial vehicles, and recreational boats and commercial ships. Due to their precision, gyroscopes are also used in gyrotheodolites to maintain direction in tunnel mining. Gyroscopes can be used to construct gyrocompasses, which complement or replace magnetic compasses, to assist in stability or be used as part of an inertial guidance system.
Although the gyroscope system is not the latest technology, the application to the FOSJOAS electric self-balancing scooter is rather innovative.
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