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Productivity monitoring system for loading machinery

  • US 5,220,968 A
  • Filed: 03/09/1992
  • Issued: 06/22/1993
  • Est. Priority Date: 03/09/1992
  • Status: Expired due to Term
First Claim
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1. A loading device comprising:

  • lifting means controlled by an operator for loading and unloading a plurality of loads using a container attached to said lifting means;

    weight sensor means connected to said lifting means for outputting a weight signal indicative of the weight value of a load within said container;

    converter means for producing a volume value based on said weight value;

    memory means;

    controller means;

    a timer;

    means for starting said timer before monitoring said weight sensor means;

    means for stopping said timer in response to an interrupt signal input to said controller means;

    a first counter stored in said memory means, used to indicate a first part of the operator'"'"'s calculated efficiency;

    a second counter stored in said memory means, used to indicate a second part of the operator'"'"'s calculated efficiency;

    means for dividing the value in the second counter by the timer value for calculating the load rate; and

    said controller means including means for storing in said memory means an accumulated total of the weight value and an accumulated total of the volume value of each of said plurality of loads as they are loaded into said container and means for calculating the operator'"'"'s efficiency based on said accumulated total of the volume value stored in said memory.

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