Registration of users of a passenger transport system

A passenger transport system with a device for registering users, the passenger transport system having a pass-through zone through which the users can pass, the device comprising:

• two sensors each operating in accordance with a time-of-flight measurement principle;
• a signal evaluation unit connected to the sensors;
• wherein each of the sensors includes at least one emitter emitting electromagnetic waves into a respective detection area and a receiver arranged adjacent to the emitter, the receiver receiving the electromagnetic waves emitted by the emitter and reflected from the detection area;
• wherein the emitter and the receiver of each of the sensors are directed into the pass-through zone and the detection area is a three-dimensional space that has a principal direction axis;
• wherein the sensors are arranged on opposing sides of the pass-through zone and the principal direction axes of the detection areas are arranged parallel to one another and orthogonal to a longitudinal extent of the pass-through zone;
• wherein each of the sensors detects a presence of a user, as well as detect a distance of the user from the sensor, and outputs a corresponding distance signal profile;
• and
• wherein the signal evaluation unit determines a number of simultaneously detected users by evaluating a comparison of the distance signal profiles with a predetermined basic signal.