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Vehicle monitoring system

  • US 3,964,302 A
  • Filed: 11/27/1974
  • Issued: 06/22/1976
  • Est. Priority Date: 12/05/1973
  • Status: Expired due to Term
First Claim
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1. A monitoring system having a single display means for displaying successively the values of a plurality of variables to be monitored;

  • a plurality of signal channels;

    analog to digital conversion means having a single analog input channel common to all of said signal channels;

    for each signal channel, individual means for monitoring a respective one of said variables to produce an analog signal having an amplitude characteristic of said variable;

    means for adjusting the amplitudes of said analog signals to lie within a range of values common to all of said channels;

    sequence timer means;

    multiplexer means operable by said sequence timer means to apply said adjusted amplitude analog signals in succession to said common input channel of said analog-digital conversion means for generation of successive digital outputs respectively representing the monitored values of said variables; and

    display control means for applying said digital outputs (under control) said sequence timer means without storage to said display means for generating successive displays characteristic of the monitored values of said variables.

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