JPH0410194A - Radio type fire warning device - Google Patents

Abstract

PURPOSE:To unnecessitate wiring by building a solar battery and a radio wave transmitter in a fire detector. CONSTITUTION:A fire detector 1 is equipped with a solar battery 3, charged by the light of a fluorescent lamp or the like installed for lighting and supplies required power to a smoke detector and a radio wave transmitter 4. When the fire detector 1 detects smoke, radio waves are transmitted from the radio wave transmitter 4 and these radio waves are received by an antenna 6. Then, an indicator 8 on a fire alarm panel 7 is turned on by a line wire from the antenna 6 and simultaneously, an alarm buzzer 9 is sounded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an inboard fire alarm system that allows easy installation of a fire detector.

[Prior Art] In general, a fire alarm system on board a ship divides the engine room, living quarters, etc. into multiple compartments, installs multiple fire detectors in each compartment, and connects the fire detectors in each compartment and the fire alarm panel with electric wires. A system is adopted in which the fire alarm panel's indicator light and alarm are used to notify the area where a fire has occurred. JP-A-62-38184 has been published as a published patent document regarding fire alarms in ships. This system consists of an onboard fire alarm system consisting of multiple fire detectors and manual fire alarms installed throughout the ship, and an automatic voice output generator that generates a voice synthesized output based on the output of the onboard fire alarm system. and an inboard broadcasting device that has an amplifier and a speaker and performs inboard broadcasting based on the voice synthesis output of the automatic audio output generation circuit.

[Problems to be Solved by the Invention] Before the ship is delivered, the fire alarm system on the ship is inspected by a government agency, and the installation of additional fire detectors may be required. Conventional fire alarm systems require electrical wires to be connected between the fire detectors in the compartment.In the case of adding fire detectors, the wiring route between the additional fire detector and the existing fire detector is There are beams and overhead piping, and the wiring route is quite complicated (especially in the case of the engine room). There is a problem in that additional work such as temporary construction of scaffolding, welding of wiring fittings, and repainting of welded areas is costly.

[Means for Solving the Problems] The present invention attempts to solve the above-mentioned problems, and includes a system in which the detection results of fire detectors placed in each section of the ship are notified by a fire alarm panel in each section. In the onboard fire alarm system, each compartment is equipped with a plurality of fire detectors equipped with solar cells and a radio wave transmitter that transmits detection results as radio waves, and each compartment is equipped with an antenna that receives the radio waves transmitted by the fire detectors. This wireless fire alarm device is characterized in that the antenna is connected to a fire alarm panel equipped with an indicator light or the like for displaying a section where a fire has occurred by an electric wire.

[Function] Since the fire detector of the onboard fire alarm system of the present invention has a built-in solar cell and a radio wave transmitter, it is easy to add more fire detectors by simply installing the fire detector and no wiring is required. Yes, and the incidental construction costs are low.

[Example] An example of the present invention will be described below based on the drawings. 1st
The figure is an explanatory diagram of the inboard fire alarm system of the present invention. In Fig. 1, the area surrounded by the two-dot chain line represents one area where the location of the fire outbreak is to be determined.

1 is a fire detector (generally a smoke detector is used); 2 is a smoke detection section of the fire detector 1; The fire detector 1 is equipped with a solar cell 3, which is charged with light from a fluorescent light or the like installed for illuminating the compartment, and supplies the power necessary for smoke detection and a radio wave transmitter 4. do. 4 is fire detector 1
A radio wave transmitter attached to a fire alarm transmits a signal when a fire detector detects smoke. 5 is a fluorescent light that is not attached to the ceiling for illuminating the compartment. The fire alarm 1 is installed at a position where the solar cell can receive the light from the fluorescent light 5, at least below the fluorescent light 5.

Reference numeral 6 denotes an antenna for receiving radio waves emitted by the fire detectors installed in the compartment, and is installed in a position where it can easily receive radio waves from all the fire detectors 1 in the compartment. A fire alarm panel 7 is provided with an indicator light 8 and an alarm buzzer 9 corresponding to each compartment. The antenna 6 of each section is connected to a fire alarm panel 7 with an electric wire.

In FIG. 1, when a fire breaks out in section A, one of the fire detectors 1 in section A detects smoke. When smoke is detected, a radio wave is transmitted from the radio wave transmitter 4, and this radio wave is received by the antenna 6. The indicator light 8 of the A section of the fire alarm panel 7 is lit up by wire from the antenna 6 of the A section, and the alarm buzzer 9 is sounded at the same time.The watcher can thereby know the section where the fire has occurred.

FIG. 2 is a diagram showing an embodiment in which the onboard fire alarm system of the present invention is installed on a ship. In Figure 2, multiple fire detectors equipped with solar cells and radio wave transmitters are installed in each section of the ship's engine room and living quarters, and a system that receives the radio waves transmitted by these fire detectors. An antenna 6 is installed for this purpose.

A fire alarm panel 7 is installed in the wheelhouse, and the antenna 6 of each compartment and the fire alarm panel 7 are connected by wire. In other words, Figure 2 shows the wheelhouse monitoring the occurrence of fires in the engine room and living quarters! ll! It shows the building.

[Effects of the Invention] Since the fire alarm device of the present invention is configured as described above, it has the following effects.

(1) Since the fire detector is equipped with a power source and a radio wave transmitter, it is easy to install the fire detector, which requires wiring.

(Even if 21 fire detectors were added, the construction period would be short and the associated construction costs would be extremely low.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of the onboard fire alarm system of the present invention, and FIG. 2 is a diagram showing a mode in which the onboard fire alarm system of the present invention is installed on a ship. l... Fire detector, 2... Smoke detector, 3... Solar cell, 4 - Radio wave transmitter, 5 Fluorescent light, 6... Antenna, fire alarm panel, 8... Indicator light, 9 -・Alarm buzzer

Claims (1)

[Claims] An onboard fire alarm system that notifies the detection results of fire detectors placed in each compartment of the ship on a fire alarm panel for each compartment. A fire detector is installed in each compartment, an antenna for receiving the radio waves emitted by the fire detector is placed in each compartment, and the antenna and a fire alarm panel equipped with an indicator light to indicate the compartment where a fire has occurred are connected by wire. A wireless fire alarm device characterized in that it is connected.