Study of Event Recognition Method of Ticket Gate in Urban Mass Transit

Since sequences of events can be used to describe a motion process, a method based on event recognition is presented. Infrared sensors are used to detect actions, events and activities of motion units for a transit of passengers. A motion unit refers to the person(s) or (and) object(s) that is (are) continuous in space and has (have) the same size as one person. When motion units pass through the walkway of the ticket gate, an action sequence is obtained. According to the predefined activities and events, the action sequence is converted into an event one. The number of the motion units is the number of the transit event pairs in the event sequence. And each of motion units is taken as one passenger in the transit. The recognition method is tested by using the simulation software called GS and the ticket gate developed in this paper. The test results prove that the recognition method is effective.