An On-Board wireless transaction system including a card reader/writer and a
GSM
modem, and adapted for use in a motor vehicle to directly order commodities wirelessly
and complete the transaction on the real time. The card reader/writer reads value-added
points from a fare card. An On-Board Unit deducts the transaction points from the
value-added points and writes the balance points into the fare card upon an ordering
demand, and wirelessly transmits the PIN of the fare card and the data of the transaction
points with the GSM modem through a GSM wireless network to a shop-end computer
for enabling the contracted shop to provide the commodity and to complete the transaction.
The shop-end computer has the function of calculating the accumulated transaction
points corresponding every PIN (personal identification number) of the fare card
for providing a bonus accumulated points promotion.