JP2003242570A - Carbon monoxide gas alarm device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a carbon monoxide gas alarm device capable of operating exact alarm for an emergency state where carbon monoxide gas starts to generate rapidly. <P>SOLUTION: The carbon monoxide gas alarm device detects carbon monoxide gas and comprises a first warning sound generating apparatus 2 which emits a warning sound based on the gas concentration. When the gas concentration is higher than a first concentration, a first warning sound is provided from the first warning sound generating apparatus 2. When the gas concentration is higher than a second concentration which is higher than the first concentration, a second warning sound is provided in a warning area which is larger than a warning area for the first warning sound. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carbon monoxide gas alarm device (hereinafter simply referred to as an alarm device) equipped with a first alarm sound generating device which detects carbon monoxide gas and emits an alarm sound based on the gas concentration. Refer to).

[0002]

2. Description of the Related Art Conventionally, an alarm device of this type has a single speaker as an alarm sound generating device and generates an alarm sound by detecting that the carbon monoxide gas concentration has reached a level requiring an alarm. It is as a configuration.

[0003]

According to the above-mentioned conventional alarm device, since the alarm is issued from a single speaker, it is considered that it is most necessary to transmit the alarm sound. In many cases, the alarm sound can only be transmitted. Therefore, the alarm sound is recognized only in the vicinity of the alarm device.For example, a person who has left the fire source did not notice the alarm, and a fire or carbon monoxide gas was emitted. However, it is assumed that the area where alarms cannot be heard will be filled.
In such a case, even if a person notices a fire, he / she will not be aware of the fire and is full of carbon monoxide gas. It may be hard to notice that it is.

It is conceivable that such a situation is caused when the generation rate of carbon monoxide increases at an accelerating rate when the fire source is in an oxygen-deficient state to some extent. When the carbon monoxide concentration starts to increase rapidly, the carbon monoxide concentration may reach the concentration at which the human body begins to be affected quickly. For example, if the concentration of carbon monoxide is 100 ppm or less, even if it is inhaled for several hours, it has no noticeable effect on the human body, but when it reaches about 500 ppm, symptoms such as headache, tinnitus, and nausea are shown in about 1 hour, and when it reaches 1000 ppm, it is about 1 Symptoms of loss of consciousness appear over time, 1500-2
At 000 ppm, similar symptoms appear in 30 minutes. Furthermore, it is said that if the concentration exceeds 4000 ppm, short-term inhalation may be fatal. Therefore, generally 1000p
Even if you find that it is an emergency situation in which carbon monoxide gas is generated over pm and you immediately start evacuating from the place where the carbon monoxide gas is generated, it is 1 I only have time to spare.

Therefore, in view of the above circumstances, an object of the present invention is to provide a carbon monoxide gas alarm device capable of performing an appropriate alarm operation in an emergency situation in which carbon monoxide gas is beginning to be rapidly generated. is there.

[0006]

The first characteristic configuration of the carbon monoxide gas alarm device of the present invention for achieving this object is to detect carbon monoxide gas and emit an alarm sound based on the gas concentration. A first alarm sound generator is provided, and when the gas concentration is equal to or higher than a first concentration, the first alarm sound generator emits a first alarm sound and the gas concentration is higher than the first concentration. When the concentration is two or more, the second alarm sound is emitted in an alarm area larger than the alarm area of the first alarm sound.

Here, the second alarm sound may be emitted from the first alarm sound generator with a louder volume than the first alarm sound. Also, the second alarm sound,
It may be emitted from another second alarm sound generating device arranged in a different place from the first alarm sound generating device.

A second characteristic structure of the carbon monoxide gas alarm device of the present invention is provided with a first alarm sound generator which detects carbon monoxide gas and emits an alarm sound based on the gas concentration,
A second alarm sound generator different from the first alarm sound generator is provided, and when the gas concentration is equal to or higher than a first concentration, the first alarm sound generator emits a first alarm sound and the gas When the concentration is equal to or higher than the second concentration, which is higher than the first concentration, the second alarm sound is emitted from the first alarm sound generation device and the second alarm sound generation device also emits an alarm sound. .

In the first characteristic structure and the second characteristic structure, as the second alarm sound generating device, a first alarm sound generating device provided in carbon monoxide gas alarm devices arranged at different places may be used. May be used, the second concentration is 1000p
It is preferably pm.

A third characteristic structure of the carbon monoxide gas alarm device of the present invention is provided with a first alarm sound generator which detects carbon monoxide gas and emits an alarm sound based on the gas concentration thereof.
The first alarm sound is emitted from the first alarm sound generator when the gas concentration is equal to or higher than the first concentration, and the first alarm sound is generated when the rising rate of the gas concentration is equal to or higher than 1000 ppm / min. The second warning sound is emitted in a warning area larger than the warning area of.

[Advantageous Effects] The carbon monoxide alarm device of the present invention is provided with a first alarm sound generator that detects carbon monoxide gas and emits an alarm sound based on the gas concentration thereof. Based on the detection to obtain concentration information, based on that information, whether or not it is necessary to sound an alarm sound in the first alarm sound generation device, and what kind of alarm sound should be sounded , The first alarm sound generator can be activated. At that time, when the gas concentration is equal to or higher than the first concentration, when the first alarm sound is emitted from the first alarm sound generation device, carbon monoxide is generated because the gas concentration is equal to or higher than the first concentration. Ventilation is required, and it is possible to encourage inspection of the combustion state of combustion equipment. further,
When the gas concentration is equal to or higher than the second concentration, which is higher than the second concentration, a second alarm sound is emitted. Therefore, when the carbon monoxide gas concentration is equal to or higher than the second concentration, the human body is affected. It is possible to issue an alarm that there is a fear that evacuation from the spot is necessary. Therefore, it is possible to properly use the alarm content according to the urgency corresponding to the carbon monoxide gas concentration. It should be noted that here, when the gas concentration is any other concentration such as a third concentration lower than the first concentration or a fourth concentration located between the first and second concentrations, no alarm is given. It does not mean that no sound is emitted, and it is possible to play various roles by setting various concentrations in the first alarm sound generator. Here, an alarm sound having a relatively low urgency is collectively referred to as a first alarm sound, and an alarm sound having an extremely high urgency is generally referred to as a second alarm sound.

At this time, when the second alarm sound is emitted, the gas concentration is higher than the gas concentration when the first alarm sound is emitted, so it is considered that the urgency is higher. To be Therefore, when the second alarm sound is generated in an alarm area larger than the alarm area of the first alarm sound, the first alarm sound alerts people around the alarm device to the generation of carbon monoxide. On the other hand, the second alarm sound functions as an alarm that further calls attention to the people around and an evacuation request to the people near the carbon monoxide gas generation source.

Here, if the second alarm sound is emitted from the first alarm sound generator with a louder volume than the first alarm sound, an alarm larger than the alarm area of the first alarm sound is generated. A second alarm sound can be generated in the area. Then, it becomes possible to more reliably transmit the alarm content to a person around the alarm device who has not noticed the first alarm sound.

Further, if the second alarm sound is emitted from another second alarm sound generator arranged at a place different from that of the first alarm sound generator, an alarm is issued to a different alarm area. You can make a sound. Therefore, by combining the first and second alarm sounds, the alarm sound can be sounded more reliably in a large area.

Further, according to the second characteristic configuration, since the first alarm sound generator for detecting the carbon monoxide gas and for issuing the alarm sound based on the gas concentration is provided, the above-mentioned first alarm sound is emitted. You can Further, since a second alarm sound generator different from the first alarm sound generator is provided, an area (hereinafter referred to as the first alarm area) different from the alarm area of the first alarm sound generator (hereinafter referred to as the first alarm area). A warning sound can be emitted in the second warning area). Therefore, when the gas concentration is equal to or higher than the first concentration, a first alarm sound is emitted from the first alarm sound generation device, and when the gas concentration is equal to or higher than the second concentration higher than the first concentration, In addition to the first alarm sound generating device, the second alarm sound generating device may generate an alarm sound. Then, in the first warning area,
With the increase in the carbon monoxide concentration, first, the first alarm sounds at the first concentration and then the second alarm sounds at the second concentration. On the other hand, in the second alarm area, an alarm sound starts to sound when the carbon monoxide concentration reaches the second concentration, where the carbon monoxide gas alarm is installed. here,
Since it is possible to individually set the first and second alarm sounds and the alarm sounds at the first and second concentrations for each alarm sound generator, especially when each alarm sound is a voice message, It is possible to encourage appropriate measures in detail.

Therefore, it is possible to recognize that the degree of emergency is gradually increasing in the first warning area, and in the second warning area, regardless of whether there is a direct abnormality in the warning area, Since the abnormality in one alarm area is notified, the person in the second alarm area can confirm the state of the first alarm area or can immediately start coping with the situation without confirmation. . Further, when the first alarm sound generating device and the second alarm sound generating device are provided separately from each other, it is possible to surely make the alarm areas different from each other.

Further, according to the third characteristic structure, the first alarm sound generating device provided in the carbon monoxide gas alarm device arranged at a different place is used as the second alarm sound generating device. In addition, the alarm sound generator of the carbon monoxide gas alarm can be used as the second alarm sound generator of the other gas alarm. Therefore, each carbon monoxide gas alarm has only one alarm sound generating device, and the adjacent room can be used as the second alarm area, for example. Therefore, each carbon monoxide gas alarm can be configured to organically communicate with each other only by having a minimum alarm sound generation device, and the generated alarm sound can be transmitted more efficiently.

If the second concentration is 1000 ppm, it is possible to secure a limit time for a person to evacuate even when a carbon monoxide concentration that may cause a person to lose consciousness is reached in about one hour. preferable. In addition, under such circumstances, the carbon monoxide concentration is often increased more rapidly than usual due to a fire or the like. Then, catching the sudden rise in carbon monoxide gas concentration, there is a possibility that the carbon monoxide concentration will suddenly rise and reach a concentration that will affect the human body in a short time during the evacuation process. It is considered that there is an abnormal condition that can be quickly captured. Therefore, according to the third characteristic configuration described above, when the gas concentration is equal to or higher than the first concentration, the first alarm sound is emitted from the alarm sound generation device, and the rising speed of the gas concentration is 100.
If the second alarm sound is emitted in an alarm area that is larger than the alarm area of the first alarm sound when it is 0 ppm / min or more, again, after securing the time required for people to evacuate, It is preferable because an emergency can be accurately notified.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, an alarm device A of the present invention includes a gas detection element 1 for detecting carbon monoxide gas and a first alarm sound generating device 2 for detecting carbon monoxide gas. Based on the detection output based on (1), it is configured to include a control device 3 that determines whether or not a first alarm sound is required to be emitted and issues an alarm signal to the first alarm sound generation device 2.

The first alarm sound generating device 2 comprises a speaker 21 which repeatedly reproduces the stored alarm sound according to the type of the alarm sound generating signal. Also,
The alarm device A is provided in each of a plurality of living rooms such as a kitchen and a living room of a general house, and the alarm devices A and A are provided with a communication device 4 connected to each other through a telephone line C, Alarm device A1 (A2) is another alarm device A
The speaker 21 can be operated as the second alarm sound generation device 5 in response to the alarm generation signal from 2 (A1).

Further, for example, as shown in FIG. 2, in a section L of a building where a large number of rooms R1 to R6 are present, even when an alarm device is provided in each room, an alarm is similarly issued in the first room R1. When an alarm signal for emitting a second alarm sound from the device A1 is issued, the telephone line C transmits the alarm signal to the alarm device A2 in the adjacent second room R2 and the alarm device A4 in the adjacent second room R4. . Then, the first alarm sound generating device 2 mounted on the alarm devices A2 and A4 operates as a second alarm sound generating device for the alarm device A1. That is, when an alarm signal for sounding the second alarm sound from the alarm device A2 is issued in the second room R2, the telephone line C causes the alarm device A of the adjacent first room R1 or R3 to operate.
1, A3 and the first alarm sound generating device 2 transmitted to the alarm device A5 of the adjacent fifth room R5 and mounted on the alarm devices A1, A3, A5 is the second alarm sound generating device for the alarm device A2. Will work as.

When any of the alarm devices A1 to A6 issues an alarm signal for sounding the second alarm sound,
The alarm signal may be transmitted to all the remaining alarm devices A1 to A6 to generate a second alarm sound. In this case, with respect to any of the alarm devices A1 to A6, the first alarm sound generating device 2 mounted on all the remaining alarm devices A1 to A6 functions as a second alarm sound generating device. .

The control device 3 comprises a concentration determination mechanism 31 for obtaining the carbon monoxide concentration information based on the detection output, and an alarm sound switching mechanism 32 for selecting an alarm sound generation signal based on the concentration information. The alarm sound switching mechanism 32 emits an alarm sound (first alarm sound) notifying that the atmosphere of the alarm device A is dirty when the concentration information is 50 ppm or more in terms of carbon monoxide gas concentration, Further, when the carbon monoxide gas concentration conversion is 550 ppm or more, an alarm sound (this alarm sound is also a first alarm sound) for notifying that carbon monoxide gas is being generated is sounded as described above. An alarm generation signal is issued to the alarm sound generator 2. Further, when it is detected that the concentration of carbon monoxide gas is 1000 ppm or more, the first alarm sound generator 2 of the other alarm device is detected.
As a second alarm sound generator, an alarm sound generation signal is emitted, and an alarm sound (second alarm sound) indicating that evacuation is required because carbon monoxide gas has reached a high concentration (second alarm sound) is likely to damage the adjacent room. Sound from the area alarm. The alarm sound due to the detection of carbon monoxide of 1000 ppm or more causes the alarm sound to sound at a much louder volume than other alarm sounds. In this way, when a highly urgent alarm is received, it will be notified more accurately, and priority will be given to evacuation first with ventilation once.
It becomes possible to take measures for carbon monoxide gas more safely.

[Other Embodiments] As the alarm sound generation device, there are various types of devices such as a device that notifies the alarm urgency by sound from a speaker, and a device that selectively uses the alarm sound depending on the tone color such as a buzzer or a bell. Things can be applied. Further, in the above embodiment, the telephone line is used to transmit the alarm sound generation signal for ringing the second alarm sound to different alarm areas, but a normal signal line may be used, and a power cable is used. It is also possible to use the above communication technology or wireless communication technology.

Further, as shown in FIG. 3, the carbon monoxide gas alarm device may be provided with another speaker 22 in addition to the alarm sound generator. In such a case, the present invention can also be applied to a case where it is necessary to sound a second alarm sound in an adjacent room or the like where no carbon monoxide gas alarm device is planned to be installed. Further, in such a case, the other speaker 22 can be freely connected to the carbon monoxide gas alarm device, and the other speaker can be easily installed and easily installed. Furthermore, the alarm area can be changed by simply setting the volume of the second alarm sound to be higher than the volume of the first alarm sound. The concentration determination mechanism may monitor the carbon monoxide gas and determine the urgency of carbon monoxide based on the degree of increase in the concentration. Specifically, for example, when it is detected that the carbon monoxide gas concentration increases at 1000 ppm / min or more, the carbon monoxide gas is highly likely to be caused by a fire, and therefore the It is desirable to sound the two alarm sounds.

[Brief description of drawings]

FIG. 1 is a schematic view showing a carbon monoxide gas alarm device of the present invention.

FIG. 2 is an explanatory diagram showing the relationship between the first and second alarm sound generators of the present invention.

FIG. 3 is a schematic view showing a carbon monoxide gas alarm device according to another embodiment.

[Explanation of symbols]

1 gas detection element 2 Alarm sound generator 3 control device 31 Concentration determination mechanism 32 alarm sound switching mechanism

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Takashi Nomura             2-5-4 Mitsuyachu, Yodogawa-ku, Osaka-shi, Osaka             Issue New Cosmos Electric Co., Ltd. F-term (reference) 5C086 AA02 BA01 BA20 CB11 DA02                       DA08 DA20 EA43 EA45 FA04

Claims (7)

[Claims] 1. A carbon monoxide gas alarm device comprising a first alarm sound generator that detects carbon monoxide gas and emits an alarm sound based on the gas concentration, wherein the gas concentration is equal to or higher than the first concentration. When the first alarm sound is generated from the first alarm sound generating device and the gas concentration is equal to or higher than the second concentration higher than the first concentration, from the alarm area of the first alarm sound. A carbon monoxide gas alarm that emits a second alarm sound in a large alarm area. 2. The carbon monoxide gas alarm device according to claim 1, wherein the second alarm sound is emitted from the first alarm sound generator with a louder volume than the first alarm sound. 3. The carbon monoxide according to claim 1, wherein the second audible alarm is emitted from another second audible alarm generating device arranged at a different location from the first audible alarm generating device. Gas alarm. 4. A carbon monoxide gas alarm device comprising a first alarm sound generator that detects carbon monoxide gas and emits an alarm sound based on the concentration of the gas. A different second alarm sound generator is provided, and when the gas concentration is equal to or higher than the first concentration, the first alarm sound generator emits a first alarm sound, and the gas concentration is higher than the first concentration. A carbon monoxide gas alarm device, which emits a second alarm sound from the first alarm sound generating device and also emits an alarm sound from the second alarm sound generating device when the concentration is higher than a second high concentration. 5. The first alarm sound generating device provided in a carbon monoxide gas alarm device arranged in a different place is used as the second alarm sound generating device. Carbon monoxide gas alarm. 6. The carbon monoxide gas alarm device according to claim 1, wherein the second concentration is 1000 ppm. 7. A carbon monoxide gas alarm device comprising a first alarm sound generator that detects carbon monoxide gas and emits an alarm sound based on the gas concentration, wherein the gas concentration is equal to or higher than the first concentration. In the case of, the first alarm sound is emitted from the first alarm sound generator, and the rate of increase of the gas concentration is 1
A carbon monoxide gas alarm device which emits a second alarm sound in an alarm area larger than the alarm area of the first alarm sound when the concentration is 000 ppm / min or more.