Low cost ultrasonic sensors for tele-operated vehicles

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Describes a new reliable low‐cost ultrasonic ranging system to assist in steering a powered wheelchair. Detection algorithms have been created and implemented on a micro controller based stand‐alone system suitable for a tele‐operated vehicle. The detection uses the gradient of the echo envelope and is resistant to noise and inconsistencies in the detection circuitry. The sensor array was considered as separate sensors, working independently so the system could quickly gather separate sets of range information. These sets were overlaid on to a 2D grid array. The new system is cheaper and simpler than available systems for powered wheelchairs.
    Original languageEnglish
    Pages (from-to)227 - 234
    JournalSensor Review
    Volume20
    Issue number3
    DOIs
    Publication statusPublished - 2000

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