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Universal controller for material distribution device

  • US 4,803,626 A
  • Filed: 09/15/1987
  • Issued: 02/07/1989
  • Est. Priority Date: 09/15/1987
  • Status: Expired due to Term
First Claim
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1. A monitoring and control system for a mobile material distribution apparatus wherein the rate of material distribution per unit area varies as a predetermined function of the ground speed of the mobile apparatus and of the rate of operation of variable rate delivery means for delivering material at a controllable rate to material distribution means for distributing the material along the path of travel of the mobile apparatus;

  • said system comprising;

    ground speed sensor means for developing a ground speed signal corresponding to the ground speed of the mobile apparatus and delivery rate sensor means for developing a delivery rate signal corresponding to a rate of delivery of material by said variable rate delivery means;

    monitoring and control circuit means responsive to said ground speed signal and to said delivery rate signal for developing a control signal for controlling the operation of said variable rate delivery means to achieve and maintain a desired rate of distribution of material along the path of travel of the mobile distribution apparatus, said monitoring and control circuit means further comprising processing means responsive to said ground speed and delivery rate signals for producing said control signals and for further producing display signals corresponding to associated functions and conditions of the mobile apparatus, and memory means for storing data and instructions for enabling said processing means to respond to delivery rate signals from each of a plurality of different types of delivery rate sensor means, means for identifying a particular type of delivery rate sensor means coupled with said control and monitoring circuit means; and

    said processing means being responsive to said sensor identifying means for selecting from said memory means data and instructions for enabling response to the delivery rate sensor means identified thereby.

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