| 摘要 |
An account has been given of a method and an installation for generating a warning signal transmittance from an activatable/deactivitable, sensor-controlled transceiver mounted in a hidden position within a motor vehicle or other displaceable object, e.g. a boat, and wherein the sensor is adapted to receive positional signals from a GSM system (1, 2, 3) and, in the activated state of readiness, to react on displacement/positional change of a car (4), by causing the transceiver to deliver said warning signal transmittance to an alarm central station together with positional signals. An illegal displacement may make itself known as a discrepancy upon the sensor-controlled transceiver's comparison of the latest received positional signals with the positional signals received just before.
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