Fire alarm apparatus

A fire alarm apparatus comprising:

• a plurality of sensing modules configured to generate a fire alarm signal by detecting fire occurrence with different address values and perform Radio Frequency (RF) communication with each other;
• a repeater configured to perform RF communication with each of the plurality of sensing modules and receive the fire alarm signal from the plurality of sensing modules, and
• a server communicating with the repeater,
• wherein when receiving the fire alarm signal from each of the plurality of sensing modules, the repeater transmits a repeater signal to each of the plurality of sensing modules after a first time elapses, wherein the repeater signal comprises an acknowledgment response to the fire alarm signal and a control signal for controlling each of the plurality of sensing modules, wherein the acknowledgment response and the control signal are transmitted integrally,
• wherein each of the plurality of sensing modules comprises:
• a sensor configured to generate the fire alarm signal when it is determined as a fire situation by detecting at least one of smoke, temperature, humidity, and gas;
• a sensing memory unit configured to store the address value;
• an amplification unit configured to amplify the fire alarm signal received from at least one of a plurality of adjacent sensing modules to generate an amplified fire alarm signal;
• and
• a sensing communication unit configured to receive the fire alarm signal or the amplified fire alarm signal, transmit the fire alarm signal or the amplified fire alarm signal to at least one of the plurality of adjacent sensing modules and the repeater, and receive the repeater signal;
• wherein the repeater receives the amplified fire alarm signal from the sensing modules, and when receiving the amplified fire alarm signal, the repeater transmits the repeater signal to each of the plurality of sensing modules after the first time elapses.

Method of operation of a fire alarm apparatus, the method comprising:

• a plurality of sensing modules generating a fire alarm signal by detecting fire occurrence with different address values and an amplified fire alarm signal from the fire alarm signal, and performing Radio Frequency (RF) communication with each other;
• and
• a repeater performing RF communication with each of the plurality of sensing modules and receiving the fire alarm signal from the plurality of sensing modules,
• the repeater transmitting a repeater signal to each of the plurality of sensing modules after a first time elapses, wherein the repeater signal comprises an acknowledgment response to the fire alarm signal and a control signal for controlling each of the plurality of sensing modules, wherein the acknowledgment response and the control signal are transmitted integrally in one data frame, and
• wherein the repeater receives the amplified fire alarm signal from the sensing modules, and when receiving the amplified fire alarm signal, the repeater transmits the repeater signal to each of the plurality of sensing modules after the first time elapses.