P-TYPE ADDRESS TYPE AUTOMATIC FIRE DETECTION SYSTEM WITH SENSORS EACH APPLIED WITH A SPECIFIC RESISTANCE VALUE FOR ACCURATELY TRACING THE ADDRESS OF A CORRESPONDING DETECTOR BY CALCULATING A SPECIFIC RESISTANCE VALUE

摘要

PURPOSE: A p-type address type automatic fire detection system with sensors which each are applied with a specific resistance value is provided to quickly suppress fire at an early stage by accurately verifying the sensor address of the sensor at a fire outbreak area.;CONSTITUTION: A step-down transformer(A1) is connected to a general wire(A) and supplies proper voltage to a corresponding sensor. A D/A(Digital to Analog) converter(DA) converts digital signals of the voltage supplied from the step-down transformer into analog signals for measurement and supplies the analogue signals. A specific resistance sensor(10), installed with a specific resistor(RE) with a different individual value and connecting the specific resistor to a contact switch(S), is connected to a wire where the analogue signals are outputted from the D/A converter, and delivers a corresponding resistance value to the wire when the sensor is activated. A microcomputer(MC) is connected to the output wire of the D/A converter, registers the analogue value of the output wire as an initial value, and registers the initial value at the specific resistance sensor with an individual resistance value as an individual address. When a resistance value of a corresponding specific resistance sensor is delivered to the wire by the activation of the sensor, the microcomputer outputs the address of the activated specific resistance sensor by calculating a currently flowing analogue value from the registered initial analogue value. A display(DP) displays microcomputer data on a screen and controls the data.;COPYRIGHT KIPO 2013;[Reference numerals] (10,AA,BB) Sensor; (A1) Down transformer; (DA) D/A converter; (DP) Display; (MC) MICOM; (RE,CC,DD) Specific resistance