Self-driven robotic cleaning apparatus and driving method thereof

  • US 5,369,347 A
  • Filed: 03/25/1993
  • Issued: 11/29/1994
  • Est. Priority Date: 03/25/1992
  • Status: Expired due to Term
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First Claim
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1. A self-driven robotic cleaning apparatus comprising:

  • a charging and power source for generating a direct current;

    a microprocessor for receiving the direct current generated from the charging and power source;

    a key input circuit which receives an operating condition and command from a user to thereafter output the same to the microprocessor;

    an infrared-heat detecting circuit for sensing infrared-heat emitted from a human body and pet animals to thereby output a sensed signal of the same to the microprocessor;

    a front/rear operating motor driving circuit for receiving a driving signal outputted from the microprocessor to thereby rotate driving wheels in front and rear directions;

    a steering motor driving circuit for receiving the driving signal generated from the microprocessor to rotate the wheels and thereafter to change the direction of the wheels;

    an ultrasonic wave transmitting circuit for receiving an ultrasonic wave transmitting signal from the microprocessor to thereafter transmit ultrasonic waves;

    an ultrasonic wave receiving circuit for receiving the ultrasonic wave transmitted from the ultrasonic wave transmitting circuit after the waves are reflected from an obstacle and for inputting a signal to the microprocessor indicating receipt of the ultrasonic waves by the ultrasonic wave receiving circuit; and

    a cleaning motor driving circuit for receiving the driving signal from the microprocessor to drive a cleaning motor and thereafter to perform a cleaning job.

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