AVL Developer Kit (Early Access Version) EarthLink

EarthLink SPARK Development Kit

Available Information:


AVL In-vehicle Protocol

The AVL in-vehicle device implements an open protocol, making the AVL core services available to external in-vehicle applications. Such services include GPS location data, input/output triggers, and wireless Internet messaging.

The AVL services available to in-vehicle applications are:

  • Location. Obtain position data (from GPS signal), set the automatic position transmission interval, or force a position report (transmit position to wireless network).
  • Messaging. Messages may be directed to one of 26 nodes or sub-addresses within the AVL. A given application may select the node or nodes for which it will respond. Applications query the AVL for incoming messages and can send messages to any Internet email address or custom-assigned AVL alias to be processed by the AVL middleware.
  • Safety and Security. Signal user initiated panic condition, unlock car doors, or signal alarm conditions.
  • Vehicle Data/Sensors. Request status of AVL digital and analog I/O signals, including Ignition, and on-board voltage and temperature sensors, in addition to the external I/O signals.
  • Diagnostics and Miscellaneous. Reset alarms, read or reset statistical counters, obtain wireless network status, and obtain diagnostic information.

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