The invention provides a CTCS-1 grade-based ground
data processing method and vehicle-mounted equipment. The method comprises the steps that a
wireless transmission unit receives a
transponder group number sent by the host of vehicle-mounted equipment; the
wireless transmission unit judges whether incoming line data corresponding to the
transponder group number exists in incoming line
data information received from ground equipment; and if the incoming line data corresponding to the
transponder group number exists in the incoming line
data information received from the ground equipment, the
wireless transmission unit sends the incoming line data corresponding to the transponder group number and the receiving time of the
wireless transmission unit to the incoming line data to the host of the vehicle-mounted equipment host, and if the incoming line data corresponding to the transponder group number does not exist in the incoming line
data information received from the ground equipment, the
wireless transmission unit does not send the incoming line data to the host of the vehicle-mounted equipment. According to the invention, the correct use of the ground data including the transponder data and the incoming line data by the vehicle-mounted equipment is ensured, the safety of
train operation is improved, and various safety accidents such as
derailment, overturning, collision and the like of trains due to wrong use of
train control data are avoided.