The invention relates to an alarm valve station (1) for a fire alarm system (100), having an alarm valve (3) with an extinguishing fluid inlet (5) and an extinguishing fluid outlet (7), wherein the alarm valve (3) is set up for selectively releasing or blocking the extinguishing fluid flow between the extinguishing fluid inlet (5) and the extinguishing fluid outlet (7), having a pressure sensor (11) which is in a fluid-communication with the alarm valve (3) and which is configured to detect a change in pressure and for converting this into an electrical alarm signal (13), and having an alarm delay device (15) for delaying the alarm signal. It is proposed according to the invention that the alarm delay device (15) is designed as an electrical alarm delay device (15) and is connected in signal-communication with the pressure sensor (11).

The invention relates to an alarm valve station (1) for a fire alarm system (100), having an alarm valve (3) with an extinguishing fluid inlet (5) and an extinguishing fluid outlet (7), wherein the alarm valve (3) is set up for selectively releasing or blocking the extinguishing fluid flow between the extinguishing fluid inlet (5) and the extinguishing fluid outlet (7), having a pressure sensor (11) which is in a fluid-communication with the alarm valve (3) and which is configured to detect a change in pressure and for converting this into an electrical alarm signal (13), and having an alarm delay device (15) for delaying the alarm signal. It is proposed according to the invention that the alarm delay device (15) is designed as an electrical alarm delay device (15) and is connected in signal-communication with the pressure sensor (11).

A fire extinguishing apparatus having a fire prediction function. The fire extinguishing apparatus includes: a fire extinguishing tube container having a fire extinguishing material therein, and automatically emitting the fire extinguishing material when being exposed to surrounding fire or heat; a fire pre-sensor coupled to one side of the fire extinguishing tube container and sensing surrounding presymptoms of a fire by measuring internal pressure of the fire extinguishing tube container; and a fire monitor connected to the fire pre-sensor and generating monitoring information while collecting internal state information and external environmental information of the fire extinguishing tube container. Therefore, the fire extinguishing apparatus can measure the internal pressure of the tube container for fire extinguishing, so as to predict and detect the occurrence of a nearby fire, and provide a notification to the outside through a network, so as to perform fire-related predictive maintenance and initial response.

A fire extinguishing apparatus having a fire prediction function. The fire extinguishing apparatus includes: a fire extinguishing tube container having a fire extinguishing material therein, and automatically emitting the fire extinguishing material when being exposed to surrounding fire or heat; a fire pre-sensor coupled to one side of the fire extinguishing tube container and sensing surrounding presymptoms of a fire by measuring internal pressure of the fire extinguishing tube container; and a fire monitor connected to the fire pre-sensor and generating monitoring information while collecting internal state information and external environmental information of the fire extinguishing tube container. Therefore, the fire extinguishing apparatus can measure the internal pressure of the tube container for fire extinguishing, so as to predict and detect the occurrence of a nearby fire, and provide a notification to the outside through a network, so as to perform fire-related predictive maintenance and initial response.

The invention relates to an alarm valve station for a fire alarm system, having an alarm valve with an extinguishing fluid inlet and an extinguishing fluid outlet, wherein the alarm valve is set up for selectively releasing or blocking the extinguishing fluid flow between the extinguishing fluid inlet and the extinguishing fluid outlet, having a pressure sensor which is in a fluid-communication with the alarm valve and which is configured to detect a change in pressure and for converting this into an electrical alarm signal, and having an alarm delay device for delaying the alarm signal. It is proposed according to the invention that the alarm delay device is designed as an electrical alarm delay device and is connected in signal-communication with the pressure sensor.

The invention concerns a dry alarm valve station of a fire extinguishing installation. According to the invention it is proposed that the dry alarm valve station includes an alarm valve, an alarm line connected to the alarm valve, an alarm alert device, preferably with an alarm pressure switch, which is connected to the alarm line and is configured to trigger an alarm signal when there is a predetermined fluid pressure in the alarm line, and a pressure-operated valve which is interposed between the alarm alert device and the alarm valve, is controlled by a control chamber, and is configured to block the alarm line as long as there is the predetermined control pressure in the control chamber and to open it when the pressure falls below the predetermined control pressure in the control chamber.

The invention concerns a dry alarm valve station of a fire extinguishing installation. According to the invention it is proposed that the dry alarm valve station includes an alarm valve, an alarm line connected to the alarm valve, an alarm alert device, preferably with an alarm pressure switch, which is connected to the alarm line and is configured to trigger an alarm signal when there is a predetermined fluid pressure in the alarm line, and a pressure-operated valve which is interposed between the alarm alert device and the alarm valve, is controlled by a control chamber, and is configured to block the alarm line as long as there is the predetermined control pressure in the control chamber and to open it when the pressure falls below the predetermined control pressure in the control chamber.

A fire or overheat detection device includes a diaphragm adjacent to a chamber with a gas inside the chamber, wherein the diaphragm contacts the gas. The fire or overheat detection system also includes a Fabry-Perot interferometer. At least a portion of the Fabry-Perot interferometer is coupled to the diaphragm via a linkage. A light source is configured to direct an input light into the Fabry-Perot interferometer.

Devices and methods are disclosed for monitoring at fishing vessels to detect blast fishing activity. A blast sensor is mountable to a vessel such that it produces a signal in response to pressure waves in water. A controller receives the signal and is operable to analyze the signal to detect blast events based on signal characteristics. A position measurement device measures a position of the vessel. A transmitter is provided to wirelessly transmit status information including a unique identifier of the monitoring unit and indicative of the position of the monitoring unit and to send a wireless alarm signal in response to a detected blast event.

Devices and methods are disclosed for monitoring at fishing vessels to detect blast fishing activity. A blast sensor is mountable to a vessel such that it produces a signal in response to pressure waves in water. A controller receives the signal and is operable to analyze the signal to detect blast events based on signal characteristics. A position measurement device measures a position of the vessel. A transmitter is provided to wirelessly transmit status information including a unique identifier of the monitoring unit and indicative of the position of the monitoring unit and to send a wireless alarm signal in response to a detected blast event.