METHOD OF AUTOMATIC FIRE EXTINGUISHING AND AUTOMATIC SYSTEM OF ITS REALIZATION Russian patent published in 1998 - IPC

FIELD: automatic means for fire extinguishing. SUBSTANCE: method consists in installation of automatic system of fire extinguishing into wait state of fire hazard, determination in case of fire the coordinates of open flame in zone of observation by means of system of detection (photosensor) located on hose barrel. In this case system memory registers address signal of fire hazard, and from this signal information is selected on zone of observation with indication of path of scanning for determination of path of motion of hose barrel; then, coordinates of zone of supply of fire-extinguishing substance are determined. On the basis of information on chart of conditions of fire extinguishing kept in memory, conditions of supply of fire-extinguishing substance are adjusted for supply of fire-extinguishing substance to fire seat, and supply of fire-extinguishing substance is monitored by tracking the selected path of motion of hose barrel and parameters of supply of fire-extinguishing substance by means of unit for measurement of pressure of fire-extinguishing substance at inlet of hose barrel. Microprocessor of automatic fire-extinguishing system is connected by means of control line and data obtained with unit forming control signals, memory, correction device, unit of comparison means, unit of memory of calibrating table, times, device for storing chart of fire-extinguishing conditions and interface unit whose first inputs and outputs are connected with control panel. Outputs of photosensor, nozzle position pickup, position pickups of hose barrel with respect to coordinate axes X and Y and pressure measuring unit are connected with the second inputs of interface unit whose second outputs are connected, respectively, with the second input of control unit of electromagnetic valve and via converter of control signals of motion along axis X and Y and also via connector of signals controlling nozzle, with the second inputs of control units of drives for moving along axis X and along axis Y, and also control unit of nozzle whose output is connected with input of electric motor of nozzle motion and outputs of control units of drives moving the hose barrel are connected, respectively, with inputs of drive electric motors of its motion. System model has been established and its serviceability confirms the validity of the offered solution. EFFECT: higher efficiency of fire extinguishing, provision of flexible system of protection from fire hazard. 2 cl, 1 dwg