JP4619842B2 - Fire alarm - Google Patents

Description

The present invention relates to a fire alarm for a house, and more particularly to a fire alarm that performs a predetermined operation in a power failure state.

A lighting fixture with a fire alarm is known (see, for example, Patent Document 1). In Patent Document 1, as a first object, there is provided a lighting device with a fire detection alarm function that automatically detects a fire alarm when a fire has occurred. Also, as a second purpose, in the event of a fire, a lighting device with a fire detection alarm function that automatically detects the fire alarm state and the main lamp lighting state after detecting that fact is provided. The mentioned lighting fixtures are described. FIG. 5 shows FIG. 1 of Patent Document 1.

In Patent Document 1, in order to achieve the first object, the lighting apparatus is activated by a smoke detection means for detecting smoke generated by the occurrence of a fire, and a smoke detection signal from the smoke detection means, Control means for generating a fire alarm signal from the time of start-up, fire alarm means to be placed in a fire alarm state while the fire alarm signal is being generated from the control means, and the control means when operated from the outside On the other hand, at least a lighting switch is provided with a reset switch for generating a start cancellation signal.

In order to achieve the second object, the smoke detection means for detecting smoke generated by the occurrence of a fire and the smoke detection signal from the smoke detection means are activated, and the fire alarm signal and main The control means for generating the lamp lighting signal, the fire alarm signal from the control means being generated, the fire alarm means to be put into the fire alarm state, and the main lamp lighting signal from the control means being generated Independent of the lamp lighting switch, the main lamp lighting switch that is forcibly turned on based on the main lamp lighting signal, and a start cancellation signal to the control means when operated from the outside The reset switch is provided at least in a lighting fixture.
JP 7-161477 A

However, in the conventional lighting fixture with a fire detection alarm function, the lighting fixture is turned on when it is detected that a fire has occurred. Normally, fire alarms do not operate many times from installation to use, and most of them are in a standby state in use, and the service life of the product is reached in the standby state. There are many things. A fire alarm that can be used effectively even in a standby state, although it is desirable that the fire alarm does not work but it is desirable to be able to appeal to its users the value of existence as long as it is installed. Was desired.

In addition, in the lighting apparatus according to Patent Document 1, when attention is paid to the installation location, the installation location is often determined in advance due to wiring circumstances in the house. In other words, lighting fixtures are usually installed near the streets of people, such as entrances, corridors, and stairs, and near the center of each room. However, there is a problem that it may be difficult to accurately grasp the occurrence of a fire because the installation location is limited.

In addition, if the breaker is shut off, such as when the cause of the fire is due to an electrical fire (tracking, short circuit, etc.), power cannot be supplied to the luminaire, and as a result, the luminaire is lit when a fire occurs. There was a possibility that there was not.

Therefore, the present invention has been made in view of such circumstances, and can be installed in a place where a fire is likely to occur according to the circumstances of the house without limiting the installation location. It can be used effectively during the standby state from the installation until the end of the service life, and in the event of a power failure, the user's field of view can be secured by irradiating the surrounding light. The purpose is to provide a fire alarm that can be beneficial to users.

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The fire alarm device of the present invention includes a fire factor detection unit that detects a fire factor in a body constituting the fire alarm device ,
A power failure detection unit that detects a power failure state, an indicator light that indicates the operation status of the fire alarm, an alarm generation unit that generates an alarm when a fire or power failure occurs,
A fire factor determination unit for determining whether a fire has occurred in response to an output signal from the fire factor detection unit or the power failure detection unit; a power failure determination unit for determining whether a power failure has occurred;
In response to an output signal from the fire factor determination unit or the power failure determination unit,
A fire alarm device comprising an arithmetic processing unit having an output control unit for outputting to the indicator lamp and the alarm generating unit, and when the occurrence of a fire or a power failure is detected, the arithmetic processing unit to the alarm generating unit, While each alarm is divided according to the cause of fire and power outage, the alarm pattern and voice data are output controlled,
By increasing the current applied to the indicator, in comparison with the normal state, it may be a fire alarm which is characterized in that the control for changing brighter the brightness of the indicator lamp.

In this way, it is possible to provide a lighting function in the event of a power failure to the indicator light that indicates the operating state of the fire alarm device, so that the fire alarm device can be used more effectively.

In addition, control of the indicator lamp by the arithmetic processing unit is performed such that when the fire alarm is in a normal standby operation, the indicator lamp is driven to blink, and when the power failure detection unit detects a power failure, the fire detection When the unit detects a fire, it may be a fire alarm device that controls to change the blinking cycle of the indicator lamp .

In this way, it is possible to prompt the user that the fire alarm is in operation by blinking the light emitting means during normal times, and the user can grasp that the fire alarm is in operation, and When a power failure is detected, it is possible to notify the user that a power failure has occurred by changing the blinking cycle. In addition, the blinking cycle is set to shorten the lighting time and set the lighting time to be longer during normal times, and to set the lighting time longer and the lighting time shorter and shorter during a power failure, thereby changing the brightness and increasing the brightness of the surroundings. It is possible.

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The fire alarm of the present invention is a fire alarm provided with a light emitting means that operates even when a power failure occurs in addition to a fire detection, and a power failure detection means for detecting a power failure state in the body constituting the fire alarm, A fire alarm provided with a light emitting means provided so as to be able to irradiate light outside the body, and when the power failure detecting means detects a power failure, the light emitting means is turned on, and the light is emitted outside the body. Because it is a fire alarm characterized by irradiation, it can be installed in places where fires are likely to occur depending on the circumstances of the house, without limiting the installation location, and it can be used during power outages Provide a fire alarm useful for the user that can be used effectively during the standby state from the installation of the fire alarm to the end of its service life. Can fire Ru can provide alarm.

Hereinafter, a fire alarm device according to the best mode of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a diagram showing a first embodiment of a fire alarm according to the present invention. The fire alarm device 1 is provided with a body 101 that is the main body of the fire alarm device, a power failure detection unit 102 that serves as a power failure detection means inside the body 101, and a light that can be emitted to the outside of the device. The light emitting means 103 and a fire factor detection unit 104 for detecting a fire factor are provided.

There are two types of fire factor detection: smoke type that detects smoke, thermal type that detects heat, flame type that detects flames, etc. It is good to choose according to.

The power failure detection unit 102 detects that the power supply to the room or the residence where the fire alarm is installed is interrupted and a power failure occurs.

When commercial power is supplied as the power source of the fire alarm main unit, the power failure state is detected by monitoring the power supply voltage supplied to the main unit. In this embodiment, the voltage at the power supply unit of the main body is monitored using a voltage dividing resistor. The power failure can be detected by monitoring the supply of power using a current transformer (CT) that penetrates the power supply line and obtains output by electromagnetic induction, or a Hall element that obtains output by capturing changes in the magnetic field. May be.

If the power source of the fire alarm main unit is acquired from the battery, it is recommended to acquire information on the power outage from the commercial power supply cable that passes near the location where the main unit is installed. For example, if a power failure is detected by monitoring the supply of power using a current transformer (CT) that penetrates the power line and obtains output by electromagnetic induction, or a Hall element that obtains output by capturing a change in the magnetic field Good. In addition to this, a power failure detection unit is provided to refer to current measurement data from current monitoring devices that may be installed on distribution boards, etc., and to determine the power outage or steady state from the current application status. Also good.

The light emitting means 103 is configured using a light emitting diode (LED). The body is provided with a plurality of holes for disposing the LEDs so that the LEDs can irradiate light outside the body. By turning on or blinking these LEDs at the time of a power failure, it plays a role as a security light, and is configured so that visibility can be ensured especially in the case of a power failure in the dark or at night.

Reference numeral 105 denotes an operation check button, which is provided with a button operation portion protruding from the body. The operation check button 105 is used to check the operation by periodically pressing whether the operation of the fire alarm is normal.

Next, FIG. 2 shows a block diagram of the internal configuration of the fire alarm of the present invention. An arithmetic processing unit 200 includes a CPU (Central Processing Unit) and an IC (Integrated Circuit). The arithmetic processing unit 200 receives a signal from the fire factor detection unit 104, receives a fire factor determination unit 201 that determines whether a fire has occurred, and an output signal from the fire factor determination unit 201, An output control unit 202 that outputs to the light emitting unit 103 and the alarm generation unit 300 is provided.

The arithmetic processing unit 200 is provided with a power failure determination unit 203 that receives an output signal from the power failure detection unit 102 and determines whether or not a power failure has occurred, and the output signal from the power failure determination unit 203 is received. In response to the input from the fire factor determination unit 201, the output control unit 202 outputs to the light emitting unit 103 and the alarm generation unit 300.

The power supply unit 400 may be configured using either a commercial power supply or a battery. The figure shows an example in which commercial power is supplied. The supplied power is converted into a DC voltage suitable for the operation of the fire alarm, and the fire factor detection unit 104, the power failure detection unit 102, the arithmetic processing unit 202, Power is supplied to each part of the light emitting unit 103 and the alarm generating unit 300. Reference numeral 401 denotes a power storage unit, which is normally charged from the power supply unit 400 to store power. When a power failure occurs, that is, when the supply of commercial power is stopped, the power supply unit 401 supplies power to the fire alarm main unit instead. Is done. In addition, when driving a fire alarm by battery drive without using a commercial power supply, a battery is provided in the power supply unit, and even if a power storage unit is provided as a spare according to the assumed drive time, remove it. Also good. Further, a power generation unit that does not use a commercial power source such as a solar battery may be provided, and a charging circuit may be provided so as to supply power to the battery or the power storage unit.

As described above, the fire factor detection unit 104 has different sensors depending on the smoke type, the thermal type, and the flame type, but a predetermined threshold value is set for the output from the sensor or the output value obtained by processing the output. It is good to install so that it may be determined that a fire has occurred when the value exceeds. For example, in the case of the smoke type, the photoelectric type is used to read the output resistance value of the optical sensor by utilizing the change in the resistance value due to the smoke flowing near the photo sensor. Determine whether a fire has occurred by reading the output current generated by flowing in the vicinity. In the case of the thermal type, the constant temperature type mainly uses the fact that the resistance value of the thermistor changes as the ambient temperature changes. In the equation, it is determined whether or not a fire has occurred by mainly reading the change in resistance from the thermistor. In the case of a flame type, it is possible to detect whether or not a fire has occurred by detecting the light generated by the flame (mainly reading the output from the pyroelectric sensor using a sensor that reacts to a specific spectral component). Determine.

Next, the operation of the fire alarm will be described.

When the fire factor detection unit 104 detects and operates near the place where the fire alarm is installed due to smoke or flame generated or due to a temperature rise, the output is output to the arithmetic processing unit 200, and the arithmetic processing is performed. Received by the fire factor determination unit 201 of the unit 200. The fire factor determination unit 201 refers to a predetermined threshold condition and compares whether the received data meets the threshold condition. If the received data meets the threshold condition, a fire occurs. Judgment is made. In this case, the output control unit 202 transmits an output signal to the output control unit 202, and the output control unit 202 that has received the output signal drives the light emitting unit 103 and the alarm generation unit 300 to notify that a fire has occurred around. As a method for notifying that a fire has occurred, both the light emitting unit 103 and the alarm generating unit 300 may be driven at one time or may be driven one by one.

Next, when a power failure occurs, when the power failure detection unit 102 detects a power failure, the output from the power failure detection unit 102 is output to the arithmetic processing unit 200, and the power failure of the arithmetic processing unit 200 is detected. It is received by the determination unit 203. Since commercial power is not supplied, the power supply is secured from the power storage unit 401, or in the case of battery driving, the power is secured from the battery. The power failure determination unit 203 refers to a predetermined threshold condition and compares whether or not the received data meets the threshold condition. If the received data meets the threshold condition, a power failure occurs. Judgment is made. In this case, the output control unit 202 transmits an output signal to the output control unit 202, and the output control unit 202 that has received the output signal drives the light emitting unit 103 and the alarm generation unit 300 to notify that a power failure has occurred around. As a method for notifying that a power failure has occurred, both the light emitting unit 103 and the alarm generating unit 300 may be driven at a time or may be driven one by one.

Note that if the alarm in the event of a fire is the same as the alarm in the event of a power failure, the user may be confused with which alarm, so the input is input to the fire factor determination unit 201 in the output control unit. Or, it is determined from which one of the power outage determination unit 203, and when there is an input from the fire factor determination unit 201, a fire occurrence alarm is output, and when there is an input from the power outage determination unit 203, a power outage occurrence alarm is output. Is preferably output. Specifically, two types of alarm patterns are prepared, alarms are divided according to factors, and two types of audio data are prepared. In the case of a fire, the fact that a fire has occurred is notified. In the case of a power outage by reproducing audio data, it is possible to distinguish by reproducing the audio data notifying that a power outage has occurred. Although the storage area for storing the voice data is larger than that in the case of one type, it is possible for the user to easily identify whether it is a fire or a power failure and to provide a convenient fire alarm.

Further, the light emitting means 103 may be used as an indicator lamp that indicates the operating state of the fire alarm device 1. The indicator light that indicates the operating status is always lit while the fire alarm 1 is operating. Therefore, when the power is interrupted or when a fire occurs, the lighting status is different from the normal status, so the user should be alerted. Can do.

Specifically, the current flowing from the output control unit 202 to the light emitting unit 103 is increased to light up brighter than during normal lighting. In addition, during normal times, the current may be made to flow in a blinking state, and the blinking period may be changed by changing the pulse period in the event of a power failure or fire.

If the storage area for programming the LED drive circuit is insufficient in the arithmetic processing unit 200, a lighting circuit or a flashing circuit may be provided between the arithmetic processing unit 200 and the light emitting unit 103. .

In this way, when a power failure occurs, the light emitting unit behaves differently from the normal state, so that the user can be effectively urged that the power failure has occurred. Visibility can be secured and a convenient fire alarm can be provided.

Next, the second embodiment will be described.

The second embodiment is configured by adding an illuminance measuring unit 106 in addition to the first embodiment, and the other components are the same as those of the first embodiment.

The illuminance measuring unit 106 measures the illuminance around the fire alarm 1 and is provided to determine whether the surrounding situation is dark or whether it is nighttime. When the surroundings are bright, even if a power failure occurs, the user is not confused because the surroundings are dark, so it is not necessary to cause the light emitting means 103 to emit light. Is determined using the illuminance measurement unit 106.

The illuminance measuring unit 106 is provided so that a part of the illuminance measuring unit 106 is exposed from the body 101 to the outside. The output from the illuminance measuring unit 106 is provided so as to be output to the power failure determination unit 203 of the arithmetic processing unit 200. The illuminance measurement unit 106 includes an optical sensor, and its resistance value changes depending on the illuminance level of light. A threshold condition is set in advance in the power failure determination unit 203, and it is determined whether or not the surrounding is bright by comparing with the threshold condition.

Next, the operation will be described.

The behavior when smoke or flame generated near the place where the fire alarm is installed is detected by the fire factor detector 104 is the same as in the first embodiment.

When a power failure is detected by the power failure detection unit 102, an output signal is output to the power failure determination unit 203. The power failure determination unit 203 simultaneously monitors the output signal from the illuminance measurement unit 106, thereby providing a fire alarm. When it is determined that the surrounding of 1 is bright, no output signal is output to the output control unit 202. If it is determined that the surroundings of the fire alarm device 1 are dark, an output signal is output to the output control unit 202 to cause the light emitting unit 103 to emit light and generate an alarm.

In this way, when a power failure is detected depending on the brightness of the surroundings of the fire alarm 1, it can be set so that an alarm is not generated when it is bright and is generated when it is dark, so unnecessary alarms can be omitted. At the same time, it is possible to refrain from using a storage battery or a battery at the time of a power failure, and to maintain a long operation time with the storage battery or the battery, and to provide a fire alarm device that is highly convenient for the user.

It should be noted that the power failure determination unit 203 and the output control unit 202 may be provided so that even when the surroundings are bright at the time of a power failure, only light emission is refrained and a sound or sound alarm is given. Specifically, a power failure detection signal and a brightness signal indicating that the brightness is bright or dark are sent from the power failure determination unit 203 to the output control unit 202, and the output control unit 202 issues an alarm if the brightness is bright. It is preferable to drive only the generating unit 300 and drive both the alarm generating unit 300 and the light emitting unit when the brightness is dark.

Next, the third embodiment will be described.

The third embodiment is configured by adding a wireless communication function unit 107 to the first embodiment. The wireless communication function unit 107 includes a data receiving unit that receives an output signal from the output control unit 202, a modulation circuit unit that modulates the data signal, and an antenna unit that transmits data. . The data transmitted from the wireless communication function unit 107 includes data transmitted from the fire factor determination unit 201 to the output control unit, that is, fire occurrence data indicating that a fire has occurred, or an output control unit from the power failure determination unit 203. , That is, power failure occurrence data indicating that a power failure has occurred.

Reference numeral 500 denotes a communication device, which receives a wireless signal transmitted from the wireless communication function unit 107, performs arithmetic processing on received data by an arithmetic circuit, and performs a predetermined operation predetermined by a program, that is, a communication device. Notify that there was a fire or a power outage around.

In this embodiment, infrared is used as a wireless communication medium, and a mobile phone having an infrared communication function is used as a communication device. The infrared communication protocol is based on technical specifications established by an industry association, IrDA (Infrared Data Association).

The mobile phone stores an application program that operates when predetermined data is received by infrared communication. When data is received from the wireless communication function unit 107 of the fire alarm 1, the mobile phone is called. When a mobile phone receives an incoming call, it emits a flashing LED, or reproduces a pre-stored voice to notify the fire alarm 1 that a notification has been received. Notify the surroundings.

As in the first and second embodiments, by outputting an output signal from the output control unit so that it can be distinguished whether the cause of notification is a fire or a power failure, that is, the wireless communication function unit 107. By sending infrared data including the cause determination data in the data sent to the communication device 500 (mobile phone), the cause determination data is processed by the application program stored in the mobile phone, In the case of a power outage, the user can be informed that a power outage has occurred, and in the case of a fire, the user can be informed that a fire has occurred. The notification from the fire alarm 1 can be confirmed with a familiar mobile phone, so even if you do not move to a place where a public line telephone or IP (Internet Protocol) telephone is installed in the house, you can report to the outside from that place Can
It is possible to notify the outside that an abnormality has occurred earlier, and it is also possible to obtain a sense of security due to the fact that communication means are close.

The application program used in the present embodiment uses the JAVA (TM) language, and controls the functions of the mobile phone via a JAVA (TM) virtual machine installed in the mobile phone. At present, terminal devices of mobile phone companies have different programming languages used for mobile phone control, so application programs that meet the specifications are created and stored by downloading. The application program may be created and driven using an embedded program language that can control each terminal device, not limited to the JAVA (TM) language.

Thus, since the fire alarm device 1 is configured so that the fire alarm device 1 transmits a notification data signal to the external communication device 500, a fire alarm device that is more convenient for the user is provided. Is something that can be done. Note that the communication medium is not limited to infrared, and other wireless communication media may be used.

By providing a fire alarm that emits light by detecting a power failure, it can be used not only in homes but also in places where power supply is considered unstable, such as temporary buildings and exhibition halls.
In addition, the communication medium of the wireless communication function unit may be configured to transmit a notification from the fire alarm 1 to a portable radio by using radio bands (AM, FM), etc. in addition to infrared rays. It is done.

It is a general-view figure of the fire alarm which concerns on embodiment of this invention. It is a block block diagram showing the internal structure of a 1st Example. It is a block block diagram showing the internal structure of a 2nd Example. It is a block block diagram showing the internal structure of a 3rd Example. It is a figure which shows the conventional fire alarm.

DESCRIPTION OF SYMBOLS 1 Fire alarm 101 Body 102 Power failure detection part 103 Light emission means 104 Fire factor detection part 105 Operation confirmation button 106 Illuminance measurement part 107 Wireless communication function part 200 Arithmetic processing part 201 Fire factor determination part 202 Output control part 203 Power failure determination part 300 Alarm generator 400 Power supply unit 401 Power storage unit

Claims (2)

In the body that constitutes the fire alarm,
A fire factor detection unit for detecting a fire factor;
A power failure detection unit for detecting a power failure state;
An indicator light indicating the operational status of the fire alarm ,
An alarm generation unit that generates an alarm when a fire or power failure occurs;
A fire factor determination unit for determining whether a fire has occurred in response to an output signal from the fire factor detection unit or the power failure detection unit; a power failure determination unit for determining whether a power failure has occurred;
In response to an output signal from the fire factor determination unit or the power failure determination unit,
A fire alarm device comprising an arithmetic processing unit including an output control unit for outputting to the indicator lamp and the alarm generation unit ,
When the occurrence of a fire or power outage is detected, the alarm processing part is divided into alarms according to the cause of the fire or power outage from the arithmetic processing unit to the alarm generating unit, while the alarm pattern and voice data are output controlled.
A fire alarm device characterized by increasing the current flowing to the indicator lamp to change the brightness of the indicator lamp more brightly than in a normal state. Control of the indicator lamp by the arithmetic processing unit,
When the fire alarm is in normal standby operation, drive the indicator light to flash.
When the power failure detection unit detects a power failure and when the fire detection unit detects a fire,
The fire alarm according to claim 1, wherein the blinking cycle of the indicator lamp is changed.