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Vehicle level indicator device

  • US 9,421,907 B2
  • Filed: 03/21/2013
  • Issued: 08/23/2016
  • Est. Priority Date: 03/22/2012
  • Status: Active Grant
First Claim
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1. A level indicator device for use in conjunction with a road vehicle and which comprises:

  • an electrically energised level sensor comprising an accelerometer that measures G-force in at least three axes and that is arranged to provide an output signal that is representative of a prevailing level of the sensor,a signal generator associated with the sensor and arranged in use to receive the sensor output and, in response thereto, to generate signals that are representative of prevailing inclination of the sensor in orthogonal directions and that are representative of a substantially horizontal level when that level is sensed to prevail by the sensor, the signal generator able to be calibrated in order to generate said signals when the device is mounted in either a generally horizontal or a generally vertical orientation,a radiofrequency signal transmitter located in circuit with the signal generator and arranged to transmit a radiofrequency signal that is modulated by the signal generated by the signal generator, anda remote receiver that is arranged to receive and demodulate the radiofrequency signal and to display indications of the prevailing inclination or horizontal level of the sensor.

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