Disclosed is a sprinkler system including a controller, wherein when the sprinkler system is in a pressurized mode, the controller is configured for: rendering a first determination to transition the sprinkler system to a standby mode, and executing a first communication with a vacuum pump based on the first determination, the first communication directing the vacuum pump to activate, whereby fluid is drained from the sprinkler system.

Disclosed is a sprinkler system including a controller, wherein when the sprinkler system is in a pressurized mode, the controller is configured for: rendering a first determination to transition the sprinkler system to a standby mode, and executing a first communication with a vacuum pump based on the first determination, the first communication directing the vacuum pump to activate, whereby fluid is drained from the sprinkler system.

Disclosed is a sprinkler system including a controller, wherein when the sprinkler system is in a pressurized mode, the controller is configured for: rendering a first determination to transition the sprinkler system to a standby mode, and executing a first communication with a vacuum pump based on the first determination, the first communication directing the vacuum pump to activate, whereby fluid is drained from the sprinkler system.

Disclosed is a sprinkler system including a controller, wherein when the sprinkler system is in a pressurized mode, the controller is configured for: rendering a first determination to transition the sprinkler system to a standby mode, and executing a first communication with a vacuum pump based on the first determination, the first communication directing the vacuum pump to activate, whereby fluid is drained from the sprinkler system.

An unmanned aerial vehicle (“UAV”) system for fluid transport includes a UAV having a fluid chamber configured to transport a fluid, a processor, and a memory. The memory includes instructions which, when executed by the processor, may cause the system to receive a first location for collecting or releasing a fluid, determine a fluid level of the fluid chamber, and transport the fluid by the UAV to the first location based on the determined fluid level.

An unmanned aerial vehicle (“UAV”) system for fluid transport includes a UAV having a fluid chamber configured to transport a fluid, a processor, and a memory. The memory includes instructions which, when executed by the processor, may cause the system to receive a first location for collecting or releasing a fluid, determine a fluid level of the fluid chamber, and transport the fluid by the UAV to the first location based on the determined fluid level.

An unmanned aerial vehicle (“UAV”) system for fluid transport includes a UAV having a fluid chamber configured to transport a fluid, a processor, and a memory. The memory includes instructions which, when executed by the processor, may cause the system to receive a first location for collecting or releasing a fluid, determine a fluid level of the fluid chamber, and transport the fluid by the UAV to the first location based on the determined fluid level.

An unmanned aerial vehicle (“UAV”) system for fluid transport includes a UAV having a fluid chamber configured to transport a fluid, a processor, and a memory. The memory includes instructions which, when executed by the processor, may cause the system to receive a first location for collecting or releasing a fluid, determine a fluid level of the fluid chamber, and transport the fluid by the UAV to the first location based on the determined fluid level.

A temperature-sensing and automatic on and off extinguishing device includes: a valve body (1), a sealing auxiliary member (2), a sealing pad (3), a magnetic ring (4), a lower magnetic ring sleeve (5), an upper magnetic ring sleeve(6), a first temperature-sensing element (7), a bi-directional spacer (8), a large reset spring (9), a valve cover (17), a second temperature-sensing element (13), an actuating sleeve (12), a small reset spring (14), a connecting element (10), a sealing sleeve (18), a screw (11), a magnetic core rod (21) and a sealing cap (22). When a fire occurs, the first temperature-sensing element (7), affected by the rise of the surrounding environmental temperature, pushes the bi-directional spacer (8) to move upward.

A temperature-sensing and automatic on and off extinguishing device includes: a valve body (1), a sealing auxiliary member (2), a sealing pad (3), a magnetic ring (4), a lower magnetic ring sleeve (5), an upper magnetic ring sleeve(6), a first temperature-sensing element (7), a bi-directional spacer (8), a large reset spring (9), a valve cover (17), a second temperature-sensing element (13), an actuating sleeve (12), a small reset spring (14), a connecting element (10), a sealing sleeve (18), a screw (11), a magnetic core rod (21) and a sealing cap (22). When a fire occurs, the first temperature-sensing element (7), affected by the rise of the surrounding environmental temperature, pushes the bi-directional spacer (8) to move upward.