Abstract: A process for tamper-proof measuring of vehicle occupancy in passenger transportation device whereby a counting of the transported persons is carried out and whereby the counting of passengers riding in the people transportation device takes place by individually assigned detectors, characterized in that measuring is carried out in such a manner that a manipulation of the measuring with the purpose of increasing the number of passenger is impossible or at least made very difficult and that data acquired is processed, stored and whereby the measurement is executed several times or continuously and whereby the measuring device is disposed completely inside the vehicle. The present invention also provides a device for the execution of the process.

Abstract: A device detects whether persons are present on seats, for example of a vehicle. An electric monitoring arrangement with electrodes is associated to each person. The electrodes are provided for sensing the human body, in particular the thorax. Mainly the breathing is processed in an evaluation circuit.