Sensor network for a passenger transport installation , the sensor network comprising: a master unit ; a signal transmission means ; and a plurality of sensor nodes ; each sensor node comprising at least one sensor for detecting a physical measured variable and being designed to transmit the detected measured variable to the master unit by means of the signal transmission means ; the master unit comprising a sensor detection module which is designed to determine an identity of the at least one sensor of each of the sensor nodes by taking into account information previously stored in a database, characterized in that the information previously stored in a database are (i) a first type of information comprising information about reference measurement results to be typically provided by a particular sensor under known conditions, (ii) a second type of information comprising information about an identity of a sensor node containing the particular sensor , the sensor node comprising a plurality of different sensors or a plurality of the same sensors in different configurations, and/or (iii) a third type of information comprising information about a pre-established configuration of a sensor node accommodating the particular sensor , the sensor node comprising a plurality of different sensors or a plurality of the same sensors in different configurations. a master unit ; a signal transmission means ; and a plurality of sensor nodes ; each sensor node comprising at least one sensor for detecting a physical measured variable and being designed to transmit the detected measured variable to the master unit by means of the signal transmission means ; the master unit comprising a sensor detection module which is designed to determine an identity of the at least one sensor of each of the sensor nodes by taking into account information previously stored in a database, characterized in that the information previously stored in a database are (i) a first type of information comprising information about reference measurement results to be typically provided by a particular sensor under known conditions, (ii) a second type of information comprising information about an identity of a sensor node containing the particular sensor , the sensor node comprising a plurality of different sensors or a plurality of the same sensors in different configurations, and/or (iii) a third type of information comprising information about a pre-established configuration of a sensor node accommodating the particular sensor , the sensor node comprising a plurality of different sensors or a plurality of the same sensors in different configurations. (i) a first type of information comprising information about reference measurement results to be typically provided by a particular sensor under known conditions, (ii) a second type of information comprising information about an identity of a sensor node containing the particular sensor , the sensor node comprising a plurality of different sensors or a plurality of the same sensors in different configurations, and/or (iii) a third type of information comprising information about a pre-established configuration of a sensor node accommodating the particular sensor , the sensor node comprising a plurality of different sensors or a plurality of the same sensors in different configurations. <EOS>