US 12,254,754 B2
Security system, method of emitting an alarm signal, bus, use of a security system
Sebastian Müller, Munich (DE); and Alexander Schneider, Munich (DE)
Assigned to Rapitag GmbH, Munich (DE)
Appl. No. 17/770,891
Filed by Rapitag GmbH, Munich (DE)
PCT Filed Oct. 23, 2020, PCT No. PCT/EP2020/079896
§ 371(c)(1), (2) Date Apr. 21, 2022,
PCT Pub. No. WO2021/078945, PCT Pub. Date Apr. 29, 2021.
Claims priority of application No. 10 2019 216 376.9 (DE), filed on Oct. 24, 2019.
Prior Publication US 2022/0375321 A1, Nov. 24, 2022
Int. Cl. G08B 21/02 (2006.01)
CPC G08B 21/0272 (2013.01) [G08B 21/0227 (2013.01); G08B 21/0258 (2013.01); G08B 21/0275 (2013.01)] 16 Claims
OG exemplary drawing
 
1. 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 the presence or non-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,
the central unit comprising a plurality of subunits, each of which comprising a transmitting unit which is designed to send the status enquiry signal via the wireless connection to the at least one security unit, and comprising a central unit receiving unit which is designed to receive a status information signal from the at least one security unit, said alarm generating unit being designed to generate the alarm signal if it has been recognised by all of the plurality of subunits by the non-presence and/or the content of the status information signal of the at least one security unit, that the at least one security unit is located outside the security zone, and
wherein the at least one security unit is designed to be detachably attached to or in an object, the at least one security unit having a locking mechanism which is configured to be unlocked in response to an unlocking signal received by the security unit, wherein the locking mechanism comprises an electromechanical actuator which is configured to be actuated upon receiving the unlocking signal such that it unlocks the locking mechanism.