A detection system for measuring one or more conditions within a predetermined area includes at least one fiber optic cable for transmitting light to and receiving scattered light from one or more nodes and a cover plate having an internal cavity. The cover plate surrounds the one or more nodes such that the one or more nodes are in communication with the internal cavity. A control system is operably coupled to the at least one fiber optic cable so that the scattered light received by the one or more nodes is transmitted to the control system. The control system analyzes the scattered light to evaluate a condition at the one or more nodes.

A targeted alarm system is described that includes a network probe for sending test data to terminal devices connected to a network and deriving reliability data of the terminal devices and the network. When a targeted alarm message needs to be sent, the system identifies a targeted terminal device based on the reliability data for sending the targeted alarm message. Related methods, apparatus, and non-transitory computer readable media are also disclosed.

A targeted alarm system is described that includes a network probe for sending test data to terminal devices connected to a network and deriving reliability data of the terminal devices and the network. When a targeted alarm message needs to be sent, the system identifies a targeted terminal device based on the reliability data for sending the targeted alarm message. Related methods, apparatus, and non-transitory computer readable media are also disclosed.

The invention relates to a condition monitoring unit for a fire detection and/or extinguishing control unit. The condition monitoring unit comprises at least one current circuit connection for connecting the condition monitoring unit to at least one current circuit, wherein the current circuit has at least one participant which detects an event. The condition monitoring unit further comprises a measuring device for measuring values of currents and/or voltages at the current circuit connection and an analysis unit in which one or more threshold values can be stored. The analysis unit is designed to detect, in an operating mode at least, an event in which values of currents and/or voltages measured by the measuring device exceed or fall below the at least threshold value. The condition monitoring unit further comprises a memory unit or an interface for transmitting data to an external memory unit, wherein the condition monitoring unit is designed to store values of the currents and/or voltages measured by the measuring device in the memory unit, in a learning mode at least, or to output the values via the interface to the external memory unit and to determine or change the threshold values depending on the stored values of the currents and/or voltages. The invention also relates to a method for determining threshold values for a condition monitoring unit for a fire detection and/or extinguishing control unit, to a fire detection and/or extinguishing control unit and to a fire detection system.

A detection system for measuring one or more conditions within a predetermined area includes at least one fiber optic cable for transmitting light to and receiving scattered light from one or more nodes and a cover plate having an internal cavity. The cover plate surrounds the one or more nodes such that the one or more nodes are in communication with the internal cavity. A control system is operably coupled to the at least one fiber optic cable so that the scattered light received by the one or more nodes is transmitted to the control system. The control system analyzes the scattered light to evaluate a condition at the one or more nodes.

The invention relates to a condition monitoring unit (18) for a fire detection and/or extinguishing control unit (12). The condition monitoring unit (18) comprises at least one current circuit connection (16) for connecting the condition monitoring unit (18) to at least one current circuit (14), wherein the current circuit (14) has at least one participant (M.sub.1-M.sub.N) which detects an event. The condition monitoring unit (18) further comprises a measuring device (42) for measuring values of currents (I.sub.L) and/or voltages at the current circuit connection (16) and an analysis unit (43) in which one or more threshold values (P.sub.1, P.sub.2) can be stored. The analysis unit (43) is designed to detect, in an operating mode at least, an event in which values of currents (I.sub.L) and/or voltages measured by the measuring device (42) exceed or fall below the at least threshold value (P.sub.1, P.sub.2). The condition monitoring unit (18) further comprises a memory unit (41) or an interface (20) for transmitting data to an external memory unit, wherein the condition monitoring unit (18) is designed to store values of the currents (I.sub.L) and/or voltages measured by the measuring device (42) in the memory unit (41), in a learning mode at least, or to output the values via the interface (20) to the external memory unit and to determine or change the threshold values (P.sub.1, P.sub.2) depending on the stored values of the currents (I.sub.L) and/or voltages.

The invention also relates to a method for determining threshold values for a condition monitoring unit (18) for a fire detection and/or extinguishing control unit (12), to a fire detection and/or extinguishing control unit (12) and to a fire detection system (10).