×

Electronic control system with radio remote control setting of limit stops for motors for the operation of winding devices

  • US 6,359,399 B1
  • Filed: 08/08/2000
  • Issued: 03/19/2002
  • Est. Priority Date: 05/05/1998
  • Status: Expired due to Fees
First Claim
Patent Images

1. An electronic control system for a motor for operation of a winding device comprising:

  • a radio receiver included in the motor being controlled; and

    a portable radio transmitter including;

    first and second push-buttons for control of lifting and lowering movement of the winding device, a radio signal transmitting section including an antenna, and a first micro-controller with a first code memory that, at each pressure on at least one of the control push-buttons, sends a codified signal having a respective identification code of the push-button being pressed to the transmitting section; and

    wherein the radio receiver includes;

    a radio signal receiving section including an antenna for receiving the codified signal from the portable radio transmitter, and a second micro-controller with a second code memory, that at each received signal having one of the codes of the second memory generates a control signal for a control unit provided with a third memory that, upon reception of the control signal;

    starts the motor in one direction of rotation or in an opposite direction, according to the push-button of the radio transmitter being pressed, and receives identification data of an angle of rotation of the motor from an encoder coupled to the motor, so as to allow the rotation of the motor until a first limit stop position is reached;

    wherein, in order to allow electronic setting of lifting and lowering limit stop postions of the winding device, the first micro-controller is generates a first or second codified signal depending on whether the first or second push button is pressed, and wherein the second micro-controller, when receiving one of the first or second codified signal, generates a first control signal for driving the motor until the first limit stop position is reached, and wherein information on the first limit stop position generated by the encoder is memorized in the third memory and associated with the pressed push-button that generated the codified signal, so that subsequently, when the push-button is pressed, the system can have the winding device automatically execute the desired movement up to the first limit stop position, the aforementioned sequence being repeated for a setting of a second limit stop position corresponding to operation of the other one of the first or second push-buttons, and wherein the first micro-controller is programmed so that a third codified signal initially generated by a simultaneous depression of the first and second push-buttons and maintained for a first time interval causes the micro-controller to generate a zeroing signal for the third memory, and wherein a repetition of the third codified signal for a second time interval after the first or second codified signal, followed by a repetition of the first or second codified signal for a third time interval causes the first micro-controller to generate a second control signal for the second micro-controller to memorize in the third memory the information on the first or second limit stop positions generated by the encoder.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×