| 摘要 |
Electronic tickets (10) are triggered by means of a trigger telegram (WTEL), out of a standby state, for the determination of a used capacity. In order to further reduce energy requirements, or to increase the autonomy of said tickets (10), a trigger telegram recognition and selection is disclosed, whereby, firstly, a trigger telegram (WTEL) is detected in a receiver (11) and, subsequently, when information (H-Control, Header) contained in a detected trigger telegram (WTEL) is destined for the relevant ticket (10), a processor module (13) is activated by means of a switch (18). In a preferred embodiment the activation is a multi-stage form, in which a digital filter (12) is arranged between the receiver (11) and processor module (13) which can also be activated by a switch (17). The switch (18) for activating the process module (13) may be operated by the digital filter (17). |
