A fire apparatus includes a fluid delivery system having a water circuit, an agent circuit, and a ratio controller. The water circuit includes a water pump configured to pump water from a water source through the water circuit. The agent circuit includes an agent tank configured to store an agent, an agent pump configured to pump the agent through the agent circuit, and an agent metering valve positioned to variably restrict a flow of the agent therethrough. The ratio controller is positioned to receive the water and the agent. The ratio controller is configured to provide an agent-water solution to one or more outlets. The agent metering valve is a self-adjusting metering valve having a valve controller configured to adjust at least one of an orifice size and a valve position based on a water flow rate entering the ratio controller and a preselected agent-to-water ratio for the agent-water solution.

A fire apparatus includes a fluid delivery system having a water circuit, an agent circuit, and a ratio controller. The water circuit includes a water pump configured to pump water from a water source through the water circuit. The agent circuit includes an agent tank configured to store an agent, an agent pump configured to pump the agent through the agent circuit, and an agent metering valve positioned to variably restrict a flow of the agent therethrough. The ratio controller is positioned to receive the water and the agent. The ratio controller is configured to provide an agent-water solution to one or more outlets. The agent metering valve is a self-adjusting metering valve having a valve controller configured to adjust at least one of an orifice size and a valve position based on a water flow rate entering the ratio controller and a preselected agent-to-water ratio for the agent-water solution.

An example system in a fire pump room may comprise a monitoring component that is configured to receive data from two or more pump room devices of a fire pump room. The monitoring component may include a plurality of input ports and each of the two or more pump room devices may be communicatively coupled to the monitoring component via a corresponding input port. The system may further comprise a wireless network interface controller communicatively coupled to a server in a network via a wireless access point, and a memory configured to store subscription information for one or more subscribing parties. Additionally, the system may comprise a processing component configured to send an indication of the received data to at least one of the one or more subscribing parties via the wireless network interface controller.

An example system in a fire pump room may comprise a monitoring component that is configured to receive data from two or more pump room devices of a fire pump room. The monitoring component may include a plurality of input ports and each of the two or more pump room devices may be communicatively coupled to the monitoring component via a corresponding input port. The system may further comprise a wireless network interface controller communicatively coupled to a server in a network via a wireless access point, and a memory configured to store subscription information for one or more subscribing parties. Additionally, the system may comprise a processing component configured to send an indication of the received data to at least one of the one or more subscribing parties via the wireless network interface controller.

A method of preserving a building or similar asset (16) from destruction by a bushfire is disclosed. The method includes the step of shortly prior to the arrival of the bushfire at the asset or building (16), spraying the exterior of said asset or building (16) with a water-based fire retardant (17) ejected from a nozzle (10) located above the asset or building (16) and mounted on a helicopter (1) carrying the water-based fire retardant (17).

A vehicle fire suppression system includes a centralized controller, a detecting circuit, a releasing circuit, and a processor in communication with a monitoring circuit. The detecting circuit is coupled to the centralized controller and configured to indicate a detection of a fire. The releasing circuit includes an actuating device coupled to the centralized controller through an output bus. The actuating device is coupled to a supply of fire fighting agent. The centralized controller is configured to activate the actuating device to release the fire fighting agent to address the fire in response to the detection of the fire. The processor and the monitoring circuit are configured to determine if there is a fault in at least one of the detecting circuit and the releasing circuit.

A vehicle fire suppression system includes a centralized controller, a detecting circuit, a releasing circuit, and a processor in communication with a monitoring circuit. The detecting circuit is coupled to the centralized controller and configured to indicate a detection of a fire. The releasing circuit includes an actuating device coupled to the centralized controller through an output bus. The actuating device is coupled to a supply of fire fighting agent. The centralized controller is configured to activate the actuating device to release the fire fighting agent to address the fire in response to the detection of the fire. The processor and the monitoring circuit are configured to determine if there is a fault in at least one of the detecting circuit and the releasing circuit.

Fire extinguishing system (1) comprising a fire extinguisher (2) provided with a handle (5) configured such that upon activation thereof fire extinguishing substance is discharged through an outlet (4) of the fire extinguisher (2). A safety mechanism (6), which when in a first state, is arranged to prevent manual activation of the handle and when in a second state is arranged to allow manual activation of the handle. A control module (7) comprising a communication unit (8) and an actuator (9), wherein the actuator (9) is connected to the safety mechanism (6), and when the communication unit (8) receives a an activation signal the communication unit (8) is arranged to activate the actuator (9), wherein the actuator (9) causes the safety mechanism (6) to change from its first state into its second state and further causes fire extinguishing substance to discharge through the outlet (4) of the fire extinguisher (2).

A UAV surface coating includes at least a bonding layer, an antioxidant layer, an oxygen-blocking propagation layer and a heat-insulation cooling layer. The coating is fabricated on a surface of a UAV machine body or covers on the surface of the UAV machine body through a composite material matrix. The UAV machine body is made of lightweight material, and the composite material matrix includes a resin-based composite matrix and a ceramic-based composite matrix. Wherein, a thickness of the bonding layer is from 20 ?m to 200 ?m, a thickness of the oxygen-blocking propagation layer is from 20 ?m to 200 ?m, and a thickness of the heat-insulation cooling layer is from 80 ?m to 1000 ?m.

A control system for use with a fire-fighting device includes a remote component having a touch sensitive screen configured to receive a user-requested parameter of fluid and to display a plurality of indicators associated with the fire-fighting device. The control system also includes a base component including a programmable logic controller having predefined logic stored thereon. The base component automatically controls operation of the pump based on the predefined logic and the user-requested parameter of fluid. The remote component receives signals from the base component and presents, via the touch sensitive screen, at least one of a first of the plurality of indicators indicative of a water volume associated with a first water source stored at a fire fighting device, and a second of the plurality of indicators indicative of a water pressure associated with a second water source remote from the fire-fighting device.