JP4966926B2 - Alarm system - Google Patents

Description

  The present invention relates to an apparatus for performing a measure for preventing an accident in cooperation with a gas meter that measures a flow rate of gas used and an abnormality alarm installed indoors.

Conventionally, in this type of alarm response system, for example it has been known which was disclosed in Patent Document 1. The configuration will be described below with reference to FIG.

  As shown in FIG. 6, the gas meter 1 includes an integration display unit 2, a metering unit 3, and a flow rate sensor 4. The integrated display unit 2 displays a count (integrated display) of the flow rate of gas supplied from a gas container (not shown) as a gas supply source to a gas appliance (not shown). The integration display unit 2 is connected to the flow sensor 4 via the measuring unit 3.

  The gas meter 1 is connected to a shutoff valve 5 that shuts off the gas supply from the gas container to the gas appliance, a terminal block 7 to which the gas leak alarm 6 is connected, and a transmission controller (NCU) 8 by closing the valve. Terminal block 9.

  The NCU 8 is connected to a telephone line network through a telephone line, and a modem (not shown) for communicating with a remote management center and a telephone line are connected between the subscriber telephone and the gas meter 1. An automatic switching device (not shown) for switching is provided.

  Further, the gas meter 1 includes a control circuit 10. The control circuit 10 includes a microcomputer (μCOM) 11 that is a main control unit, a battery 12 that functions as an operation power supply, an interface 13, and the like. Here, ROM is a read-only memory for storing programs, fixed data, etc., 15 is a central processing unit (CPU) 15 for performing various processing operations in accordance with the programs stored in ROM 14, and 16 is used for processing in CPU 15. The RAM is a readable / writable memory having a work area to be processed and a data storage area for storing processing calculation results. The interface 13 is connected to the pulse output end of the flow sensor 4, the control end of the shut-off valve 5, the terminal blocks 7 and 9, and the like.

In the above configuration, the CPU 15 in the gas meter 1 detects the gas flow rate flowing from the gas container to the gas appliance, integrates the detected gas flow rate to detect the gas usage, and the gas leak alarm 6 When a gas leak is detected, the NCU 8 is controlled to perform a gas leak notification process for reporting the gas leak to a remote management center.
JP 2004-19956 A

  However, in the above-described conventional configuration, gas shutoff is performed based on the gas leak detection information of the gas leak alarm device, but the information of other alarm devices is not informed to the gas meter, and abnormality detection of other alarm devices is performed. However, there was a problem that the gas was not shut off.

In order to solve the conventional problems, alarm corresponding system of the present invention, which made it possible to information communication between the gas meter and the CO alarm, the gas meter, measures the gas flow rate instantaneously An instantaneous flow rate measuring means, a shutoff valve for shutting off the gas supply when the flow rate is abnormal, a communication means for receiving detection information from the outside and transmitting processing information corresponding to the received information to the outside, and a communication means Treatment selection means for selecting the treatment content based on the received information and the flow rate information from the instantaneous flow rate measurement means, and the treatment selection means uses the instantaneous flow rate measurement means when identifying the detection information from the CO alarm device. with the flow rate signal and determines whether or not occur, if the flow signal is generated, and drives the cutoff valve is determined that the CO occurrence anomaly involving the use of gas appliances to shut off the supply of gas, The flow signal is If not without, is characterized in transmitting a signal to increase the alarm sound of the CO alarm via the communication unit determines that CO occurs abnormality without the use of gas appliances.

  This makes it possible to instantly determine whether the detection information from the CO alarm device is accompanied by the use of a gas appliance or not, and appropriate information corresponding to the cause of the CO generation abnormality is obtained. Treatment is possible, and safety can be improved.

Alarm corresponding system of the present invention, upon identifying the sensing information from the CO alarm, the flow rate signal by the instantaneous flow rate measurement means determines whether or not occur, if the flow rate signal has occurred If the gas supply is cut off by driving the shut-off valve and the flow rate signal is not generated, it is determined that the CO generation abnormality is not accompanied by the use of the gas appliance. By providing the treatment selection means for transmitting a signal for increasing the alarm sound of the CO alarm device via the communication means, whether the detection information from the CO alarm device is accompanied by the use of the gas appliance, It is possible to instantly determine whether the product is not used, and it is possible to take appropriate measures corresponding to the cause of the abnormal occurrence of CO, thereby improving safety.

The first invention is a alarm corresponding system which enables information communication between the gas meter and the CO alarm, the gas meter, the instantaneous flow rate measurement unit for measuring the gas flow rate instantaneously, flow rate abnormality a shut-off valve for interrupting the supply of gas in a time, etc., a communication unit for transmitting the processed information corresponding to the received information to the external which receives the detection information from the outside, the instantaneous flow rate measurement and the information received from said communication means and a treatment selection means for selecting the action content based on the flow rate information from the means, the action selection means, upon identifying the sensing information from the CO alarm, the flow rate signal by the instantaneous flow rate measurement means generating with judges whether or not being, when said flow signal is generated, it is determined that CO generation abnormality involving the use of gas appliances by driving the shut-off valve to shut off the supply of gas, the flow rate signal If not occur, characterized in transmitting a signal to increase the alarm sound of the CO alarm via the communication means to determine CO abnormalities and without the use of a gas appliance, CO It is possible to instantly determine whether the detection information from the alarm device is associated with the use of gas appliances or not associated with the use of gas appliances, making it possible to take appropriate measures in response to the cause of abnormal CO emissions. , Can improve safety. In addition, when the cause of CO generation abnormality does not involve the use of gas appliances, it is impossible to take direct measures to eliminate the cause, so many people can increase the alarm sound of the CO alarm. It is possible to notify the abnormal occurrence of CO, and it is suitable as a security process for ensuring safety although indirectly.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the present embodiment.

(Embodiment 1)
The block diagram of the alarm device corresponding system according to the first embodiment of the present invention in FIG. 1 showing the same block diagram in FIG.

Alarm corresponding systems 1 and 2, the ultrasonic flow measuring means 18 as a flow rate measuring means for measuring the flow rate of the gas flowing in the flow path 17, as a gas shutoff unit for shutting off the gas by detecting the abnormal A fire alarm having a gas meter 21 having a shutoff valve 19 and a communication means 20 for communicating information with an external information detection means, a notification means 22 for detecting and notifying a fire, and a communication means 23 as an external communication means Detector 24, gas alarm device 27 having an external communication means 26 for detecting and informing a combustible fluid and a toxic fluid, and a concentration of carbon monoxide (hereinafter referred to as CO) to detect and notify. And a CO alarm device 30 including an external communication device 29, and communicates information with at least one of the fire alarm device 24, the gas alarm device 27, and the CO alarm device 30. , Identify the distribution unit by the identification unit 31, the gas meter 21 is configured to include a treatment selection means 32 for selecting a treatment in accordance with the identification result. Here, 33 is a gas water heater, gas cooker, gas fan heater or other gas appliance connected to the flow path 17, 34 is a fire sensor, and 35 is an alarm control means.

About configured alarm corresponding system as above will be described the operation, the action.

  A fire alarm 24 is installed in the house. If a fire occurs, the fire alarm 24 detects the fire and generates a notification sound from the notification means 22 of the fire alarm 24. . At this time, the communication means 23 of the fire alarm 24 sends a signal notifying the gas meter 21 of the occurrence of a fire. And the gas meter 21 can know that the fire has occurred in the house by identifying that it is a signal of the fire alarm device 24. As a result, the gas selection is performed by the cutoff valve 19 by the treatment selection means 32 of the gas meter 21 outputting a signal for blocking the gas.

  On the other hand, when the gas meter 21 transmits a fire occurrence signal to another alarm device, for example, the gas alarm device 27 or the CO alarm device 30, the gas alarm device 27 or the CO alarm device 30 also receives the notification means 25, A notification sound can be generated from 28.

  With such a configuration, when the fire alarm 24 detects a fire, the gas meter 21 cuts off the gas and first prevents the spread of damage. And by reporting to other alarm devices, the gas alarm device 27 and the CO alarm device 30 can also generate notification sounds, so that many alarm devices can inform the danger, such as evacuation of people and initial fire extinguishing. Therefore, safety can be improved and damage can be minimized.

  In addition, although it demonstrated that the fire alarm 24 detected initially, it is the same also when the gas alarm 27 and the CO alarm 30 detect initially. An instruction designated for each alarm signal is communicated to the gas meter 21, and the treatment selection means 32 outputs a signal for shutting off the gas to the gas meter 21, thereby performing abnormal gas detection or CO detection. The gas can be shut off immediately, and a safety process with improved safety can be performed. In addition, although the fire alarm 24, the gas alarm 27, and the CO alarm 30 have been described, at least one of these alarms and the gas meter communicate information, Similar effects can be obtained.

  Furthermore, when the gas meter 21 receives an abnormal signal from the gas alarm device 27, it is possible to prevent an instantaneous stop of the gas and improve convenience by shutting off the gas after a lapse of a certain time after reception. . For example, in the case of malfunction of the gas alarm device 27 due to spray or the like, the abnormality detection of the gas alarm device is canceled in a short time, so that the malfunction of the alarm device can be determined by opening a certain time interval. By such an operation, it is possible to prevent erroneous gas blockage. In addition, although demonstrated with the gas alarm device, the same treatment is fully conceivable also in other alarm devices. In addition, it is desirable that the fixed time interval can be set arbitrarily, and is normally set between 1 minute and 10 minutes.

  When the signal from the CO alarm device 30 shown in FIG. 3 is received, the ultrasonic flow rate measuring means 18 of the gas meter 21 instantaneously determines whether or not the gas is used, and it is determined that the gas is being used. For example, by immediately shutting off the gas, the gas can be shut off immediately, and a security process with improved safety can be performed. By using the ultrasonic flow rate measuring means 18, it is possible to instantaneously discriminate even when a low flow rate gas is used, and to quickly shut off the gas. Here, 36 is a CO sensor.

  In addition, if gas is not used, the gas meter is instructed to increase the notification sound from the CO meter, and the volume adjusting means 37 that informs the resident is provided, so that an accident other than the occurrence of CO by the gas appliance is also warned. It is possible to perform security processing with improved safety. Again, since the ultrasonic flow rate measuring means 18 can be used to detect that no gas is flowing instantaneously, such a treatment can also be performed quickly, and an accident can be prevented from expanding.

  For example, when an automobile is left running in the garage on the first floor, the CO alarm device 30 installed on the second floor detects CO and communicates the information to the gas meter 21. And if it confirms that the gas meter 21 is not using gas, it will instruct | indicate to the CO alarm device from the gas meter 21 to make the alarm sound of the CO alarm device 30 loud. If you take such measures, people who live on the second floor will be more likely to notice the alarm, and even if a person on the second floor falls down, the person who lives in the next room will increase the alarm sound. Can be rescued at an early stage, and can prevent accidents caused by poisoning with CO exhaust gas from automobiles. Although the CO alarm device has been described, a similar configuration can be considered for other alarm devices.

  Although the above description has been made using the ultrasonic flow rate measuring means, it is obvious that the same effect can be obtained with a flow rate measuring means that can measure other instantaneous flow rates. Further, the information communication between the gas meter and the alarm device has been mainly described. However, the same effect can be obtained by selecting the processing by communicating the information of the gas meter and the alarm device to the management center. And although it demonstrated by sound volume as alerting | reporting, displaying visually on the display part of a gas meter is also included. Moreover, although the description has been made with the configuration in which the treatment selecting means is attached to all the alarm devices, it may be configured to be attached to some of the alarm devices, or only on the gas meter side. In addition, although the communication means is illustrated by wireless transmission / reception, it is obvious that the same effect can be obtained even if it is configured by wire. In particular, a LAN or a telephone line can be used.

As described above, alarm corresponding system according to the present invention has a gas meter data having a communication means for communicating CO alarm and information to select the action content based on the flow rate signal by the instantaneous flow rate measurement means treatment By providing the selection means, the gas can be shut off by the abnormality information of the gas meter and the CO alarm device, and the safety can be improved.

System diagram of the alarm device corresponding system according to the first embodiment of the present invention The alarm block diagram of a corresponding system Block diagram of the CO alarm device the alarm corresponding system Block diagram of a conventional flow measurement device

Explanation of symbols

Reference Signs List 17 Flow path 18 Ultrasonic flow rate measuring means 19 Shut-off valve 20, 23, 26, 29 Communication means 21 Gas meter 22, 25, 28 Notification means 24 Fire alarm 27 Gas alarm 30 CO alarm 31 Identification means 32 Treatment selection means 37 Volume adjustment means

Claims (1)

A alarm corresponding system which enables information communication between the gas meter and the CO alarm,
The gas meter has instantaneous flow rate measuring means for instantaneously measuring the gas flow rate, a shutoff valve for shutting off the gas supply when the flow rate is abnormal, etc., and processing information corresponding to the received information while receiving detection information from the outside. comprising communication means for transmitting to the outside, and a treatment selection means for selecting the action content based on the flow rate information from the received information and the instantaneous flow rate measuring means from said communication means,
The treatment selection means, upon identifying the sensing information from the CO alarm, with a flow rate signal by the instantaneous flow rate measuring means for determining whether occurring,
If the flow signal is generated, it is determined that CO generation abnormality involving the use of gas appliances by driving the shut-off valve to cut off the supply of gas,
When the flow signal is not generated, it is determined that CO generation abnormality is not accompanied by the use of a gas appliance, and a signal for increasing the notification sound of the CO alarm device is transmitted via the communication means .
Alarm corresponding system, characterized in that.

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