×

Distributed autonomous control system for multi-axis motion control

  • US 7,174,474 B1
  • Filed: 10/12/2005
  • Issued: 02/06/2007
  • Est. Priority Date: 10/12/2005
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method for distributed multi-axis motion control comprising the steps of:

  • generating a pattern table of a motor system comprising a first node component and a second node component of a multicast communications network, the first node component comprising a first clock and a first actuator and the second node component comprising a second clock and a second actuator;

    translating the pattern table into first and second single-direction-of-motion pattern tables each controlling a separate actuator direction of motion in the motor system;

    transmitting the first single-direction-of-motion pattern table over the network to the first node component and the second single-direction-of-motion pattern table over the network to the second node component;

    synchronizing the first and second clocks with synchronization signals transmitted through the network at a sync interval;

    generating time bombs at an interval which is a whole number multiple of the sync interval;

    concurrently executing the first step in the sequence of motions defined in the first and second single-direction-of-motion pattern tables for each of the actuators in response to a time-bomb to begin motion of the actuators to produce multi-axis motion of the motor system; and

    continuing execution of subsequent steps in the sequence of motions defined in the first and second single-direction-of-motion pattern tables in response to subsequent time-bombs to produce synchronized multi-axis motion of the motor system.

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