JP2002230665A - Gas leak alarm with abnormal seismic vibration alarm function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gas leak alarm with abnormal seismic vibration alarm function further enhanced in safety by giving an alarm even to a relatively weak quake that does not require the interruption of a gas passage. SOLUTION: An alarm instructing means 101 instructs to output a seismic abnormality alarm on the basis of a second seismic reference lower than the first seismic reference of a microcomputer gas meter 200 that is the base for close-control a gas shut-off valve. An abnormal seismic vibration alarm means 102 gives a seismic abnormality alarm in response to the output instruction. Accordingly, the seismic abnormal seismic vibration alarm is given even in the occurrence of a quake not reaching the seismic reference for close- controlling the gas shut-off valve by the microcomputer gas meter 200. Consequently, a user is urged to confirm safety even in the occurrence of a relatively weak vibration that does not require the interruption of the gas shut-off valve.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas leak alarm, and more particularly, to a gas leak alarm with an abnormal seismic alarm function that detects an abnormal vibration such as an earthquake and issues an alarm.

[0002]

2. Description of the Related Art At present, a microcomputer gas meter 200 installed in many homes has a function of measuring a gas usage amount, detecting an abnormal gas flow rate, and controlling to close a gas shutoff valve. Further, some microcomputer gas meters 200 have a function of detecting a large earthquake or the like and shutting off a gas flow path, but do not particularly have a function for a relatively weak earthquake or the like. First, such a microcomputer gas meter 200 will be described with reference to FIG.

FIG. 5 shows a microcomputer gas meter 20 with a seismic sensor.
FIG. 3 is a block diagram showing an outline of the “0”. As shown in FIG. 5, this type of microcomputer gas meter with a seismic sensor 200 includes a microcomputer 201, a flow sensor 202, a measuring unit 203, a flow display unit 204, a gas shutoff valve 205, a seismic sensor 206, and a detection circuit 207. ing.

The microcomputer 201 performs a normal flow integration process based on the flow rate information detected and measured by the flow rate sensor 202 and the flow rate measuring section 203, and displays the integrated flow rate value thus obtained on the table flow rate display section 204. I do. At the same time, the microcomputer 201 determines the presence or absence of an abnormal flow rate based on the flow rate information, and when it is determined that an abnormality has occurred, controls the drive so that the gas cutoff valve 205 is closed, and controls the gas flow path (not shown). Automatically shut off.

[0005] Further, based on the vibration detection obtained from the seismic sensor 206 and the detection circuit 207, the microcomputer 201 controls the gas cutoff valve 205 to a predetermined seismic intensity equal to or higher than a predetermined seismic intensity.
For example, it is determined whether or not a seismic intensity of 5 or more has occurred.
When it is determined that the gas flow has occurred, similarly to the case where it is determined that the gas flow rate abnormality has occurred, the drive control is performed so that the gas shutoff valve 205 is closed, and the gas flow path is automatically shut off. After the gas flow path is shut off, a message such as "gas shut off" is transmitted from an alarm (not shown).

[0006] The automatic shut-off of the gas flow path based on the seismic signal will be described. When a predetermined vibration is detected and the seismic sensor 206 is turned on, it is turned on and off at a predetermined cycle supplied from the seismic sensor 206. The on / off pulse signal that repeats
For example, it is determined whether or not a vibration with a predetermined seismic intensity or higher has occurred, based on whether or not the vibration has occurred for 40 ms or more within three seconds. Based on this determination, the gas flow path is automatically shut off as described above. Such processing is described in, for example, Japanese Patent No.
No. 107137.

[0007]

However, the above-mentioned microcomputer gas meter 200 outputs the above-mentioned message after shutting off the gas flow path in response to a vibration such as a relatively large earthquake. That is, only the result of the shut-down is reported, but the safety confirmation is not urged in advance. As described above, since a warning is not issued for a vibration that is not large enough to block the gas flow path, there is a problem that it is not possible to prompt a user to confirm gas safety when a relatively weak earthquake occurs.

Accordingly, in view of the above-mentioned situation, the present invention provides an alarm function even for a relatively weak vibration which is not enough to shut off the gas flow path, and provides an extraordinary safety alarm function with enhanced safety. It is an object to provide a gas leak alarm.

[0009]

A gas leak alarm according to claim 1 has been made in order to solve the above problems.
As shown in the basic configuration diagrams (A) and (B), a gas leak alarm device with an abnormal seismic alarm function that detects a gas leak and issues a gas leak alarm, and also detects an abnormal vibration and issues an abnormal seismic alarm. And a second lower limit than the first seismic reference of the microcomputer gas meter 200 serving as a reference for controlling the closing of the gas shutoff valve.
Alarm command means 101 for outputting the abnormal seismic warning based on the seismic criterion, and abnormal seismic warning means 102 for issuing the abnormal seismic warning in response to the output command from the alarm command means 101. It is characterized by having.

[0010] According to the first aspect of the present invention, the alarm command means 101 is based on a second seismic standard lower than the first seismic standard of the microcomputer gas meter 200, which is a standard for controlling the closing of the gas cutoff valve. Outputs an abnormal seismic warning. Then, in response to this output command, the abnormal seismic alarm means 102 issues an abnormal seismic alarm. Therefore, an abnormal seismic alarm is issued even when a vibration that does not reach the seismic criterion for controlling the gas shutoff valve to be closed by the microcomputer gas meter 200 occurs. As a result, the user is encouraged to confirm safety even when a relatively weak vibration occurs, which is not enough to close the gas shut-off valve.

The gas leak alarm according to claim 2 has been made to solve the above-mentioned problem. As shown in the basic configuration diagrams of FIGS. 1 (A) and 1 (B), an abnormal seismic alarm according to claim 1 is provided. In the gas leak alarm with function, the first seismic criterion is:
This is the first seismic intensity that serves as a reference for closing control of the gas shutoff valve,
The second seismic sensitivity criterion is a second seismic intensity lower than the first seismic intensity.

According to the second aspect of the invention, the first and second seismic references are seismic intensity. The second seismic intensity, which is a reference for the occurrence of the abnormal seismic alarm, is lower than the first seismic intensity, which is the reference for the gas shutoff valve closing control. By using the seismic intensity as a standard for generating an abnormal seismic alert, it is possible to accurately set the second seismic standard with reference to many existing earthquake data and the like.

According to a third aspect of the present invention, there is provided a gas leak alarm having a function of detecting an abnormal seismic alert according to the second aspect, as shown in FIG. 1A. In the alarm device, the alarm command means 101 detects a predetermined vibration and outputs a vibration detection signal,
Judgment is made based on the integrated value of the vibration detection signal output within a predetermined monitoring time as to whether or not a vibration greater than or equal to the second seismic intensity has occurred. Command means 103.

According to the third aspect of the present invention, the warning command means 101 has the vibration sensing means 4 and the judgment command means 103,
The seismic sensing means 4 detects a predetermined vibration and outputs a vibration detection signal, and the judgment command means 103 generates a vibration equal to or greater than the second seismic intensity based on an integrated value of the vibration detection signals output within a predetermined monitoring time. It is determined whether or not it has been performed, and an output command for an abnormal seismic alarm is issued based on the result of this determination. As described above, it is determined whether or not a vibration equal to or greater than the second seismic intensity has occurred using the integrated value of the vibration detection signal output within the predetermined monitoring time. A different level of seismic intensity can be detected while using the same seismic device on the gas leak alarm device 100 side with the alarm function.

A gas leak alarm according to a fourth aspect of the present invention has been made to solve the above problem. As shown in FIG. 1B, a gas leak alarm with an abnormal seismic alarm function according to the second aspect is provided. In the alarm device, the alarm instructing means 101 includes seismic intensity information obtaining means 104 for obtaining seismic intensity information from the microcomputer gas meter 200, and the second
A determination command means 105 for determining whether or not a vibration greater than or equal to the seismic intensity has occurred, and issuing an output command for the abnormal seismic alert based on the determination result.

According to the fourth aspect of the present invention, the alarm command means 101 has a seismic intensity information acquiring means 104 and a judgment instructing means 105. The seismic intensity information acquiring means 104 acquires seismic intensity information from the microcomputer gas meter 200, Using the seismic intensity information, the determination instructing means 105 determines whether or not a vibration equal to or more than the second seismic intensity has occurred, and issues an abnormal seismic warning output instruction based on the determination result. As described above, since the seismic intensity information is obtained from the microcomputer gas meter 200 and is used to determine whether or not a vibration greater than the second seismic intensity has occurred, a gas leak alarm with an abnormal seismic alarm function is provided. The seismic sensor 4 is no longer required on the vessel 100 side. Also, since the seismic intensity information, which is the judgment data for the gas shutoff valve closing control and the abnormal seismic alarm, is acquired under the same conditions, the gas shutoff valve closing control and the abnormal seismic alarm can be accurately separated. Become.

A gas leak alarm according to a fifth aspect of the present invention has been made in order to solve the above-mentioned problem. As shown in the basic configuration diagrams of FIGS. In the gas leak alarm with an abnormal seismic alarm function, the abnormal seismic alarm means 102 is voice output means 5 to 8 for outputting the abnormal seismic alarm by voice.

According to the fifth aspect of the present invention, since a gas leak alarm, an abnormal seismic alarm, and the like are output by voice, the alarm voice can be output even when the user is somewhat away from the alarm. Being able to recognize and take appropriate action immediately.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is a block diagram showing an embodiment of the gas leak alarm with an abnormal seismic alarm function of the present invention.

The gas leak alarm 100 shown in FIG. 2 is installed, for example, at a predetermined position in a room where gas appliances in a house are located. And, it has a basic function of detecting a gas leak and issuing an alarm by voice or the like. The gas leak alarm has a function of issuing an alarm when a vibration such as a relatively weak earthquake occurs, in addition to such a basic function.

As shown in FIG. 2, the present gas leak alarm 100
Has basically a microcomputer (microcomputer) 1, a timer circuit 2, a gas sensor 3, a vibration sensor 4, a voice IC 5, a filter 6, an amplifier 7, and a speaker 8.

The microcomputer 1 is driven by a household power supply or a built-in battery, and includes a timer circuit 2, a gas sensor 3, a vibration sensor 4,
And a voice IC 5 are connected. In the second embodiment, the integrated value of the on / off pulse signal is received from the microcomputer gas meter 200 as seismic intensity information described later. As will be described later with reference to FIGS. 3 and 4, the microcomputer 1 has an alarm criterion lower than a shutoff reference seismic intensity (corresponding to the first seismic criterion of claim 1) of the microcomputer gas meter 200 serving as a reference for controlling the closing of the gas shutoff valve. Based on the seismic intensity (corresponding to the second seismic criterion of the first aspect), an abnormal seismic alarm is output to the voice IC 5. Further, the seismic intensity information is obtained from the microcomputer gas meter 200, and it is determined whether or not a vibration greater than the alarm reference seismic intensity has occurred using the seismic intensity information. Based on the determination result, an abnormal seismic alarm is issued to the voice IC 5. Output command. Note that the microcomputer 1 always receives the detection output from the gas sensor 3, thereby detecting a gas leak and controlling the voice IC 5 to warn of the gas leak.

The timer circuit 2 supplies to the microcomputer 1 timer information necessary for determining when the above-mentioned abnormal seismic alarm is to be generated.

The gas sensor 3 is a known gas sensor element 3
1 and a detection circuit 32. The gas sensor element 31 detects the gas concentration, and the detection circuit 32 supplies a voltage value corresponding to the gas concentration detected by the gas sensor element 31 to the microcomputer 1 as a detection output.

The vibration sensing means 4 includes a vibration sensor 41 and a detection circuit 4
2 is included. That is, as described in the conventional example, after a predetermined vibration is detected and a switch built in the seismic sensor 41 is turned on, an on / off pulse signal that repeats on / off at a predetermined cycle via a detection circuit 42 in response to the vibration. (Corresponding to the vibration detection signal of claim 3) is supplied to the microcomputer 1.

The voice IC 5 has a plurality of types of voice information, that is, "gas leak" as a gas leak warning and "earthquake has occurred. Please confirm gas safety" as an abnormal seismic warning. Are stored in advance.
Then, a command is controlled by the microcomputer 1 to output any audio information. This audio information is amplified by the amplifier 7 through the filter 6 and output from the speaker 8.

As described above, since a gas leak alarm, an abnormal seismic alarm, and the like are output by voice, even when the user is somewhat away from the gas leak alarm, the alarm voice can be recognized and instantaneous. Will be able to take appropriate measures. In addition,
The audio IC 5, the filter 6, the amplifier 7, and the speaker 8 correspond to an audio output unit according to the present invention. LCD and LED instead of or in combination with this audio output means
And the like may be used for the alarm and the notification.

Next, the processing procedure of the microcomputer according to the present invention will be described with reference to FIGS. FIG.
It is a flowchart which shows the processing procedure concerning 1st Embodiment of the gas leak alarm with an abnormal seismic alarm function shown in FIG.
FIG. 4 is a flowchart showing a processing procedure according to a second embodiment of the gas leak alarm with an abnormal seismic alarm function shown in FIG.

In step S101 of the first embodiment shown in FIG. 3, when it is detected that the seismic sensor 41 has been turned on due to a vibration such as an earthquake, the microcomputer 1 proceeds to step S102.
In, a start command is transmitted to the timer circuit 2 to start the timer circuit 2, and the process proceeds to step S103. The seismic sensor 41 used here is assumed to be equivalent to that used in the microcomputer gas meter 200 in FIG. 5 for simplicity of explanation. Further, it is assumed that the same criterion as described with reference to FIG. 5 is employed for automatically shutting off the gas flow path of the microcomputer gas meter 200.

In step S103, the microcomputer 1 integrates the generation time of the on / off pulse signal transmitted from the seismic sensor 4 until it is determined in step S104 that 3 seconds have elapsed (N in step S104).

In step S104, the microcomputer 1 obtains from the timer circuit 2 the elapsed time since the start of the timer circuit 2 in step S102.
Determine if seconds have elapsed. If it is determined that three seconds have elapsed, the process proceeds to step S105.

In step S105, the microcomputer 1 determines whether or not the integrated value of the on / off pulse signal integrated in step S103 is 20 ms or more. That is, the determination criterion of 20 ms is considered in the microcomputer gas meter 200 as described with reference to FIG. 5 in that the gas flow path is automatically shut off when the integrated value of the on / off pulse signal continues for 40 ms or more within 3 seconds. This is because an abnormal seismic alarm is issued when the vibration is weaker, that is, when the integrated value of the on-off pulse signal continues for 20 ms or more within 3 seconds. For example, assuming that an integrated value of 40 ms, which is a reference for automatically shutting off the gas flow path, corresponds to a seismic intensity of 5, an integrated value corresponding to a seismic intensity of about 3 is used as a reference for issuing an abnormal seismic alert in step S105. I do.

As described above, it is determined whether or not a vibration exceeding a predetermined seismic intensity has occurred using the integrated value of the on / off pulse signal. Therefore, the microcomputer gas meter 200 and the gas leak alarm with an abnormal seismic alarm function are determined. Different levels of seismic intensity can be detected while using the same seismic sensor on the 100 side.

When a different type of seismic means from the microcomputer gas meter 200 is used for a gas leak alarm with an abnormal seismic alarm function, a judgment criterion corresponding to the seismic means may be used. However, the standard is microcomputer gas meter 2
00 needs to be set to correspond to a seismic intensity lower than the standard for automatically shutting off the gas flow path.

If it is determined in step S105 that the integrated value of the on / off pulse signal has continued for 20 ms or more within 3 seconds, the process proceeds to step S106 to output an abnormal seismic alarm (Y in step S105). , 2
If it is determined that the time has fallen below 0 ms, the vibration sensor 4
The process returns to step S101 in order to detect the on of 1 (N in step S105).

In step S106, the microcomputer 1 controls the voice IC 5 to output the above-described abnormal seismic alarm "Earthquake has occurred. Please check the safety of gas" from the speaker 8, and the process proceeds to step S106. S107
Move to

The above steps S101 to S
106 corresponds to the warning command means of the first aspect, and particularly, step S105 corresponds to the determination command means of the third aspect.

In step S107, it is determined whether there is an alarm stop trigger such as a switch operation (not shown) or a timeout of an alarm time. Unless there is this alarm stop trigger, the abnormal seismic alarm in step S106 is continued (N in step S107), and if there is an alarm stop trigger, the process proceeds to step S108.

In step S108, the microcomputer 1 controls the audio IC 5 and the timer circuit 2 to stop the alarm and the timer, respectively, and then the process proceeds to step S10.
Return to 1.

In the second embodiment shown in FIG. 3, it is assumed that the main body of the present gas leak alarm 100 has no seismic sensing means and acquires seismic intensity information from the microcomputer gas meter 200.
In the second embodiment, the microcomputer gas meter 200 is configured as shown in FIG.
It is assumed that the same seismic sensor 206 described in FIG. 5 is provided, and the same gas flow path cutoff criterion as described in FIG. 5 is adopted. Then, it is assumed that the microcomputer 1 receives, from the microcomputer gas meter 200, the integrated value of the on / off pulse signal for three seconds after the seismic sensor 206 is turned on as the seismic intensity information.

In step S201 of FIG. 3, the microcomputer 1 waits for reception of the on / off pulse signal integrated value from the microcomputer gas meter 200 (step S20).
1 N). The microcomputer 1 is operated after the seismic sensor 206 of the microcomputer gas meter 200 is turned on due to the occurrence of a vibration such as an earthquake.
When the integrated value of the on / off pulse signal for the second is received, the process proceeds to step S202 to check the integrated value (Y in step S202). Note that the above step S201
Corresponds to the seismic intensity information acquisition means of claim 4.

As described above, the seismic intensity information is acquired from the microcomputer gas meter 200 and is used to determine whether or not a vibration exceeding a predetermined seismic intensity has occurred. It is not necessary to newly provide the seismic means 4, and it is possible to suppress an increase in cost. In addition, since the seismic intensity information, which is the judgment data for the gas shutoff valve closing control and the abnormal seismic alarm, has been acquired under the same conditions, the gas shutoff valve closing control and the abnormal seismic alarm can be accurately separated. Become.

In step S202, the microcomputer 1 determines whether the integrated value of the on / off pulse signal obtained in step S201 is equal to or longer than 20 ms. That is, the determination criterion of 20 ms is considered in the microcomputer gas meter 200 as described with reference to FIG. 5 in that the gas flow path is automatically shut off when the integrated value of the on / off pulse signal continues for 40 ms or more within 3 seconds. This is because an abnormal seismic alarm is issued when the vibration is weaker, that is, when the integrated value of the on / off pulse signal continues for 20 ms or more within 3 seconds. For example, assuming that an integrated value of 40 ms, which is a reference for automatically shutting off the gas flow path, corresponds to a seismic intensity of 5, an integrated value corresponding to a seismic intensity of about 3 is used as a reference for issuing an abnormal seismic alert in step S202. To

If it is determined in step S202 that the integrated value of the on / off pulse signal has continued for 20 ms or more within 3 seconds, the process proceeds to step S203 to output an abnormal seismic warning (Y in step S202). , 2
If it is determined that the value is less than 0 ms, the process returns to step S201 to receive the integrated value of the on / off pulse signal again.
(N in step S202).

In step S203, the microcomputer 1 controls the voice IC 5 to output the above-mentioned abnormal seismic warning "Earthquake has occurred. Please check the safety of gas" from the speaker 8 to execute the processing. S204
Move to Steps S202 and S203 correspond to the determination command means of the fourth aspect.

In step S204, it is determined whether there is an alarm stop trigger such as a switch operation (not shown) or an alarm time-out. Unless there is this alarm stop trigger, the abnormal seismic alarm in step S203 is continued (N in step S204), and if there is an alarm stop trigger, the process proceeds to step S205.

In step S205, the microcomputer 1 controls the audio IC 5 and the timer circuit 2 to stop the alarm and the timer, respectively.
Return to 1.

As described above, according to the present embodiment, an abnormal seismic alarm is issued even when a vibration that does not reach the seismic standard for closing the gas shut-off valve on the microcomputer gas meter 200 side occurs. As a result, the user is encouraged to confirm safety even in the event of a vibration such as a relatively weak earthquake that is not enough to close the gas shut-off valve, and a highly safe gas leak alarm with an abnormal seismic alarm function is obtained. Will be able to Further, as a secondary effect, by recognizing the abnormal seismic alarm, it is possible to use the sound generator of the gas leak alarm and the check for running out of battery as well.

In the above embodiment, the seismic intensity is basically used as a standard for generating an abnormal seismic alert. However, when the seismic intensity is used as a standard, accurate seismic data can be obtained at an appropriate timing with reference to many existing earthquake data. Will be able to issue an abnormal seismic warning. Alternatively, or in addition, the duration of the vibration can be adopted as the above criterion. For example, the microcomputer gas meter 200 determines whether or not the gas flow path needs to be shut off after a lapse of a monitoring period of three seconds after the occurrence of a predetermined vibration. An alarm may be output. The gist of the first and second seismic standards described in claim 1 is intended to include not only the seismic intensity but also the duration of the vibration.

[0050]

As described above, according to the first aspect of the present invention, an abnormal seismic alarm is issued even when a vibration that does not meet the seismic criterion for closing the gas shut-off valve with the microcomputer gas meter 200 is generated. As a result, the user is urged to confirm safety even when a relatively weak vibration occurs, which is not enough to close the gas shut-off valve, and a highly safe gas leak alarm device with an abnormal seismic alarm function can be obtained. Become like Further, as a secondary effect, by recognizing the abnormal seismic alarm, it is possible to use the sound generator of the gas leak alarm and the check for running out of battery as well.

According to the second aspect of the present invention, by using the seismic intensity as a standard for generating an abnormal seismic alarm, the second seismic standard is accurately set with reference to many existing earthquake data. It becomes possible. Therefore, according to the second aspect of the present invention, it is possible to obtain a gas leak alarm with an extraordinary seismic alarm function with higher safety.

According to the third aspect of the present invention, it is determined whether or not a vibration equal to or higher than the second seismic intensity has occurred using the integrated value of the vibration detection signals output within the predetermined monitoring time. Thus, different levels of seismic intensity can be detected on the microcomputer gas meter 200 side and on the gas leak alarm device 100 with an abnormal seismic alarm function while using the same seismic sensor. As described above, according to the third aspect of the present invention, the products can be shared between the microcomputer gas meter 200 side and the gas leak alarm device 100 side. A gas leak alarm with function can be obtained.

According to the fourth aspect of the present invention, the seismic intensity information is obtained from the microcomputer gas meter 200 and is used to determine whether or not a vibration greater than the second seismic intensity has occurred. A new vibration sensor 4 is not required on the side of the gas leak alarm device with an abnormal vibration sensor alarm function, so that cost increase can be suppressed. Also, since the seismic intensity information, which is the judgment data for the gas shutoff valve closing control and the abnormal seismic alarm, is acquired under the same conditions, the gas shutoff valve closing control and the abnormal seismic alarm can be accurately separated. Become. As a result,
According to the fourth aspect of the present invention, it is possible to obtain a highly safe gas leak alarm with an abnormal seismic alarm function while suppressing an increase in cost.

According to the fifth aspect of the present invention, since a gas leak alarm, an abnormal seismic alarm, and the like are output by voice, the alarm voice can be output even when the user is slightly away from the alarm. Being able to recognize and take appropriate action immediately. As a result, according to the invention described in claim 5, a gas leak alarm with an abnormal seismic alarm function with higher safety can be obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a basic configuration of a gas leak alarm with an abnormal seismic alarm function of the present invention.

FIG. 2 is a block diagram showing an embodiment of a gas leak alarm with an abnormal seismic alarm function of the present invention.

FIG. 3 is a flowchart showing a processing procedure according to the first embodiment of the gas leak alarm with an abnormal seismic alarm function shown in FIG. 2;

FIG. 4 is a flowchart showing a processing procedure according to a second embodiment of the gas leak alarm with an abnormal seismic alarm function shown in FIG. 2;

FIG. 5 is a block diagram showing an outline of a microcomputer gas meter with a seismic sensor.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Microcomputer 2 Timer circuit 3 Gas sensor 4 Vibration sensing means 5 Voice IC 6 Filter 7 Amplifier 8 Speaker 31 Gas sensor element 32 Detection circuit 41 Vibration detector 42 Detection circuit

Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat II (Reference) G08B 21/00 G08B 21/00 21/10 21/10 F term (Reference) 2F030 CC13 CE27 CF05 CF11 2G046 AA01 CA09 DC12 DC14 DC16 DC17 DC18 EB01 2G060 AA01 AE19 AF09 HC07 HC10 HC13 HC19 HC21 HD01 HD02 HD07 HE02 KA01 5C086 AA02 AA13 BA11 CA01 CA21 CB11 CB40 DA16 DA40 EA13 EA31 EA36 EA45 FA06

Claims (5)

[Claims] 1. A gas leak alarm device having an abnormal seismic alarm function for detecting a gas leak and issuing a gas leak alarm and detecting an abnormal vibration and issuing an abnormal seismic alarm, wherein a gas shutoff valve is controlled to be closed. On the basis of the second seismic standard lower than the first standard of the microcomputer gas meter as the standard,
An abnormal seismic sensor comprising: an alarm commanding unit that outputs the abnormal seismic warning; and an abnormal seismic warning unit that issues the abnormal seismic warning in response to the output command from the warning instruction unit. Gas leak alarm with alarm function. 2. The gas leak alarm with an abnormal seismic alarm function according to claim 1, wherein the first seismic criterion is a first seismic intensity serving as a criterion for controlling closing of a gas shutoff valve. 2. The gas leak alarm with an abnormal seismic alarm function, wherein the second seismic criterion is a second seismic intensity lower than the first seismic intensity. 3. The gas leak alarm with an abnormal seismic alarm function according to claim 2, wherein the alarm command means detects a predetermined vibration and outputs a vibration detection signal, and within a predetermined monitoring time. Judgment command means for judging whether or not a vibration equal to or greater than the second seismic intensity has occurred based on the integrated value of the vibration detection signal output to the above, and issuing an output command for the abnormal seismic warning based on the judgment result; A gas leak alarm with an abnormal seismic alarm function, characterized by having: 4. The gas leak alarm with an abnormal seismic alarm function according to claim 2, wherein the alarm commanding means uses seismic intensity information to obtain seismic intensity information from the microcomputer gas meter, and uses the seismic intensity information. Determination command means for determining whether or not a vibration equal to or greater than the second seismic intensity has occurred, and issuing an output command for the abnormal seismic warning based on the result of the determination. With gas leak alarm. 5. The gas leak alarm with an abnormal seismic alarm function according to claim 1, wherein the abnormal seismic alarm means is a sound output means for outputting the abnormal seismic alarm by voice. Gas leak alarm with abnormal seismic alarm function.