Passenger information system

A computer-implemented method for protecting access to a passenger information system installed in a public transport vehicle comprising the following steps:

• exchanging by a first electronic identification device a first electronic identification with an operator when the operator is located in a restricted compartment of the public transport vehicle;
• and
• registering the exchanged first electronic identification in a data store for storing registered electronic identifications;
• and
• receiving by a second electronic identification device a second electronic identification for accessing an inputting means for inputting information into the passenger information system;
• and wherein the second electronic identification device and the inputting means are part of an interfacing system;
• authorizing inputting information into the passenger information system via the inputting means when the second electronic identification received by the second electronic identification device matches one of the registered electronic identifications in the data store.

A passenger information system for a public transport vehicle comprising one or more public compartment accessible by users of the transport vehicle and comprising a restricted compartment accessible by an operator of the transport vehicle to which users of the transport vehicle are not allowed access;

• said passenger information system comprising:
• one or more passenger information terminal for communicating information to the users when located in the one or more public compartment;
• and
• a first electronic identification device configured to exchange an electronic identification with the operator when located in the restricted compartment and to register the electronic identification with the passenger information system as a registered electronic identification;
• and
• an interfacing system comprising one or more inputting means for inputting information into the passenger information system;
• and
• comprising a second electronic identification device configured to receive an electronic identification from a user of the interfacing system;
• wherein the passenger information system is arranged to authorize the inputting of information via said inputting means when the electronic identification from the user matches the registered electronic identification and to de-authorize the inputting of information via said inputting means after the inputting of information.