Data processing method for converting road GPS signal into random gradient and application

The invention discloses a data processing method for converting a road GPS signal into a random slope and an application, and belongs to the technical field of actual road emission tests, and the method comprises the steps: collecting GPS signals and engine data, collecting the GPS signals of the whole actual road emission test process through a GPS signal collector on emission equipment through the actual road emission test, and transmitting the collected GPS signals to an engine; engine power in the test process is collected through an OBD interface of the test vehicle; in order to improve the simulation precision of a laboratory on an actual road emission test, save the project development cost and shorten the project development period, based on the GPS signal of an actual road, the real road emission test simulation method is based on the GPS signal of the actual road, and the speed, altitude, time and gear signals in the GPS signal are extracted for standby application. A GPS signal of an actual road is