Patent ID: 8887819
Filing Date: 2014-11-18
Classification: A62C

Abstract:
1. A valve united sprinkler comprising: an open sprinkler head that is connected to a fire extinguishing solvent storage to sprinkle the solvent; a sprinkler valve that is located between the solvent storage and the sprinkler head to open up the sprinkler head; a sprinkler sensor that is located near the sprinkler head to detect a fire; and a sprinkler controller that controls only the sprinkler valve and makes the sprinkler valve operate, wherein the sprinkler controller comprises: wherein the sprinkler controller activates the sprinkler valve in response to determining that (i) at least one of the fire detection signals generated by the external detectors indicates a fire is detected and (ii) the fire extinguishing signal indicates a fire has been recognized or the sprinkler sensor signal indicates a fire is detected, wherein the sprinkler controller generates the fire alarm signal indicating that a fire is detected in response to determining that (i) at least one of the fire detection signals generated by the external detectors indicates a fire is detected or (ii) the sprinkler sensor signal indicates a fire is detected.