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Geographical point e.g. level crossing, approach warning device for e.g. car, has triggering unit to trigger sound and/or light alarm when distance between each geographical point position and vehicle position is less than given value
Geographical point e.g. level crossing, approach warning device for e.g. car, has triggering unit to trigger sound and/or light alarm when distance between each geographical point position and vehicle position is less than given value
The device has a global positioning system (GPS) antenna (1) and GPS receiver (2) to detect position of a vehicle at a time, and a subscriber identity module card (3) to record a position of geographical points. A microprocessor (4) has a unit to calculate a distance between the position of each point and vehicle position. An alarm triggering unit triggers a sound and/or light alarm when the distance is lower than a given value.
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