Abstract: A method and a system for registering tickets includes defining a waking zone with a transceiver unit having a transmitting unit, defining a registration zone with a registration transceiver unit, providing tickets having a processor, a memory, a ticket receiver, and a ticket transceiver for communicating between the waking zone and the tickets, transmitting a first information unit from the transmitting unit to the ticket receiver of a ticket located in the waking zone, activating the ticket transceiver of the ticket located in the waking zone with an item of information contained in the first information unit, at a beginning of ticket registration, setting up a bi-directional communication between the registration transceiver unit and a ticket transceiver of a ticket located in the registration zone through additional information units, and registering ticket presence to establish a service to be used or a defined presence.

Abstract: To monitor goods and/or containers a method and a system are proposed that comprises the following components. Each good or container is allocated a transponder on which influence variables on the good or on the container are recorded by means of a sensor means. The transponders are wirelessly connected to each other, e.g. as an ad-hoc network. One of the transponders transmits all of the recorded influence variables to an allocated communication unit. In this way, a system is provided that automatically, and without manual intervention, provides very early detection of impermissible effects on the goods to be stored or transported. In this way, for example, a re-ordering can be activated before the impaired goods are delivered to the intended recipient.

Abstract: Electronic tickets are triggered by a trigger message, out of a standby state, for the determination of used capacity. In order to further reduce energy requirements, or to increase the autonomy of the tickets, a trigger message recognition and selection is disclosed, whereby firstly a trigger message is detected in a receiver and, subsequently, when information contained in a detected tigger message is destined for the relevant ticket, a processor module is activated by means of a switch. In a preferred embodiment, the activation is a multi-stage form, in which a digital filter is arranged between the receiver and processor module which can also be activated by a switch. The switch for activating the process module may be operated by the digital filter.

Abstract: The behavior of the bogie of a muliple-axle vehicle is monitored. Accelerations of at least two axles of the bogie are measured with acceleration sensors allocated to the axles. The sensor signals are subjected to a Fourier transformation in FFT units. The frequency profiles resulting from the Fourier transform are compared with profiles that are stored in memory. Differences that are detected are compared with threshold values and messages are correspondingly sent to the system that controls the vehicle. The monitoring system allows mechanical operating errors of the bogie to be detected independently of effects caused by the running surface upon which the vehicle travels.

Abstract: A process is disclosed for communication systems used in traffic engineering and having an earthbound transponder for each corresponding track section. The transponders transmit first data through a first path of transmission to polling machines arranged on vehicles. Based on these first data, the concerned polling machine ascertains whether second data transmitted through a second path of transmission to the polling machine are really destined for the vehicles. The signal in the second path of transmission destined for the vehicles of a section of the track is individually modulated or transmitted by a time- or frequency-multiplexing process. Depending on the selected modulation or multiplexing, coefficients are built at the emitter side which are then transmitted through the first path of transmission, extracted at the receiver side and used to demodulate or demultiplex the signal transmitted through the second path of transmission.

Abstract: A radar system, such as a tracking radar installation or other radar installation which is of the pulse compression type, transmits data during transmission of the radar signal. The data is transmitted by inserting, into the radar signal, at least one short nonpulse interval. The position of the nonpulse interval within the radar pulse can be modulated.

Abstract: Radar systems that operate in accordance with the crossfeed method require an exact balancing of the individual Doppler frequency evaluation channels in the receiver. According to the invention, a special method is used first to make the amplitude levels in the individual channels equal to one another and then to determine and balance the phase differences between the channels. A radar system using this method is also described.