A loop detection apparatus and corresponding methods are provided that includes an inductive loop and a processing device. The processing device includes circuitry to connect to the inductive loop and control and sense from the inductive loop a change in a characteristic thereof. The inductive loop is disposed at least partially above a surface on which a vehicle travels. The processing device detects a change in a characteristic of the inductive loop beyond a first threshold value, and in response, transmits a first signal configured to effect a first action. The processing device further detects a change in the characteristic of the inductive loop beyond a second threshold value, and in response, transmits a second signal configured to effect a second action different than the first action.


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    Title :

    Above ground loop system proximity detection


    Contributors:

    Publication date :

    2016-12-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G07B Fahrkartenausgeber , TICKET-ISSUING APPARATUS



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