bus stop station announcement

1.Use GPS technology, without manual operation, sharing the driver labor intensity, safe operation 2.5HZ GPS technology and external antenna GMOUSE, signal stronger, more accurate positioning 3.Support u disk upload/download data and automatically detects and update the U disk data 4.Support set station coordinates, trigger distance and drive direction on Google Earth, do not need Collect points 5.Electromagnetic interference (EMI) multi-barrier treatment, especially adapted