Security system, method of emitting an alarm signal, bus, use of a security system
Assigneerapitag GmbH
InventorsSebastian MÜLLER, Alexander SCHNEIDER
Life of this patent
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Abstract
The invention relates to a security system designed to recognise, by means of the presence and/or content of a status enquiry signal of at least one security unit, whether or not at least one security unit is located inside the security zone. The security system includes an alarm generating unit which is designed to generate an alarm signal if it has been recognised that the at least one security unit is located outside the security zone. The invention further relates to a method for emitting an alarm signal, a bus with a security system and a use of a security system.
Claims18
Security system, comprising:
- a central unit;
- at least one security unit which is connected via a wireless connection to the central unit and has a security unit receiving unit;
- a predetermined security zone which extends around the central unit and in which the wireless connection between the central unit and the at least one security unit exists,
- the central unit comprising a central unit transmitting unit which is designed to transmit a status enquiry signal via the wireless connection to the at least one security unit, said security system being designed to recognise, by means of the presence and/or content of the status enquiry signal, whether or not the at least one security unit is located inside the security zone, and
- an alarm generating unit which is designed to generate an alarm signal if it has been recognised that the at least one security unit is located outside the security zone.
Method for emitting an alarm signal by means of a security unit comprising the steps:
- connecting a central unit to at least one security unit by means of a wireless connection;
- determining a security zone which extends around the central unit and in which the wireless connection between the central unit and the at least one security unit exists;
- transmitting a status enquiry signal by the central unit by means of a central unit transmitting unit;
- receiving the status enquiry signal of the central unit by the at least one security unit by means of a security unit receiving unit;
- determining by the security system, by means of the presence and/or content of the status enquiry signal, whether or not the at least one security unit is located inside the security zone;
- and
- generating an alarm signal by an alarm generating unit if it is determined that the at least one security unit is not located inside the security zone.
Dependencies are inferred from the claim text.