Siemens XT55 manual Overview of Document, Avl

XT55 AVL Software Instructions User’s Guide Confidential/Preliminary

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mobile

1 Overview of Document

XT55 is a Plug & Play GSM/GPS device, which contains a software application named AVL that can be configured. The concept of the device is based on a simple implementation for a wide range of applications with low costs and high flexibility. In particular it offers a fast development of systems solutions within the fields of:

￿￿Tracking

The vehicle to be tracked is fitted with the module XT55 and an antenna. GPS satellites are continuously transmitting a radio message containing information, including when the data was sent, which satellite sent it and the current reliability of the system. The XT55- AVL fitted in the vehicle receives this information from at least 4 satellites and carries out the necessary calculations to determine its current position.

￿￿AVL

The embedded GPS receiver into the module XT55 determines its current location, speed and heading. This data can be stored or can be directly transmitted to an operating centre. The terminal reports its position to the Base Station over GSM communications network. Current position can be displayed on a PC/PDA in digital maps.

Depending on the configuration, the device exchanges data with a server application (e.g. Mapping-Software, etc.). The module XT55 can be configured by the user via local RS232- interface or via remote GSM (air link).

At the core of the above-mentioned system solutions is a classical set-up with client-server architecture. In this scenario, the module XT55 represents the so-called mobile client (see Figure 1).

The integration of the module XT55 requires a clear definition:

-The characteristics of the integrated AVL software solution of the module XT55 as a client of the user solution, and the possibilities for configuration.

-The instruction command for communicating with the client as the main part of the server application

This document seeks to describe the module XT55 firmware and its possibilities for configuration, including the description, which is based on the Windows￿ HyperTerminal configuration (terminal emulator program).

Furthermore, in this document you will find a detailed description of the instruction command, providing a foundation for the set-up of own server applications for communicating with the mobile client (XT55).

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