Vehicle identification system consisting of a machine readable pattern on the vehicle and a imaging device to read the encoded pattern

摘要

Disclosed is a vehicle identification system consisting of a machine readable pattern 1 encoding information attached to the vehicle 3 and an imaging device 4 to read the patterns. The pattern may be printed onto the surface of the vehicle or attached to the vehicle as a plate. The imaging device is able to read the identification pattern at a range of at least 30m. The pattern may by a 2-D barcode. The pattern may be formed of a plate comprising a reflective layer and a non-reflective layer laminated together. The code may be image-able under visible, infrared or microwave radiation. The bar-code may be a grid of cells 2, the smallest dimension of the grid being at least 300mm and the cells be at least 10mm.