JP2007327775A - Alarm management system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To appropriately maintain and manage a communication state between an alarm and a gas meter device in an alarm management system. <P>SOLUTION: The gas meter device 100 is provided with a communication part 60. The alarm 200 is provided with a communication part 210 identifying the alarm, and transmitting apparatus information reporting the operation status of the alarm to the communication part 60. The gas meter device 100 and the alarm 200 are provided with communication management parts 30 and 220 managing the communication state between the communication part 60 and the communication part 210, respectively. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a technique for managing an alarm device that detects an abnormal event using a gas meter device that measures a gas flow rate, and more particularly, to provide a technology related to communication management between a gas meter device and an alarm device.

  Conventionally, as this type of alarm device compatible system meter, for example, the one described in Patent Document 1 has been known. The configuration will be described below with reference to FIG.

  As shown in FIG. 9, 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 conventional configuration, management of the communication state between various alarm devices represented by the gas meter 1 and the gas leak alarm device 6 is not performed. Therefore, it is difficult to select a communication state according to the situation, such as maintaining a communication state according to the usage state of both, and to maintain communication smoothly.

  An object of this invention is to provide the technique which maintains the communication state between an alarm device and a gas meter apparatus appropriately in an alarm device management system.

  The alarm device management system of the present invention is provided in a first communication unit provided in the gas meter device and an alarm device that detects an abnormal event and notifies the occurrence of the abnormal event, identifies the alarm device, and Provided in at least one of the second communication unit for transmitting device information for notifying the operation status of the alarm device to the first communication unit, the gas meter device and the alarm device, and the first communication unit A communication management unit that manages a communication state between the second communication units. With such a configuration, it is possible to smoothly exchange information between the gas meter device and the alarm device, and it is possible to suppress useless communication and save power.

  The communication management unit is provided in the alarm device, the second communication unit is controlled to transmit the device information periodically, and the first communication unit is transmitted from the second communication unit. It can be configured to periodically acquire device information. By regularly communicating alarm device information, it is possible to receive the device information of the suspended alarm device when the gas meter device wants it, so that unnecessary communication can be suppressed and power saving can be achieved.

  Further, when the alarm device detects an abnormal event, the second communication unit may be controlled so as to continuously transmit the device information including the abnormal information indicating the abnormal event. Information can be exchanged accurately when the alarm device detects an abnormal event, and when there is no abnormality, wasteful communication can be suppressed by measures such as widening the communication interval, and power saving can be achieved. Furthermore, the communication management unit may stop and control the sensor of the alarm device that detects an abnormal event when the second communication unit is transmitting the device information.

  The communication management unit may be provided in the gas meter device, and the first communication unit may be controlled to periodically receive the device information. Device information can be received when a gas meter device is desired, and wasteful communication can be suppressed to save power. Further, the communication management unit can control the first communication unit not to operate when the gas meter device measures a gas flow rate. At the time of measuring the gas flow rate, the processing load of the control unit (microprocessor) is large and the power consumption increases, but at this time, communication operation using a relatively large current can be avoided.

  Further, at least two communication management units are provided in the alarm device and the gas meter device, and the first and second communication units communicate regularly, thereby the device information of the alarm device and the gas meter device. You may make it control the said 1st and 2nd communication part so that information may be transmitted / received. By the communication management unit installed in both the gas meter device and the alarm device, information can be transmitted and received smoothly, information can be received when desired, and unnecessary communication can be suppressed to save power.

  Further, the device information may include information on the expiration date of the alarm device. In this case, the gas meter device can manage the expiration date of the alarm device. Further, the expiration date information includes state information of a battery that drives the alarm device. In the case of using a battery-driven alarm device, the gas meter device can detect the battery life, so that it is possible to report or limit the safety function.

  Examples of the alarm device include a gas leak alarm device, a fire alarm device, and a CO alarm device. In addition, the first communication unit and the second communication unit can perform wireless communication. When the gas meter device obtains the alarm information related to these combustion devices, the safety function can be strengthened (continuous use time limit, etc.). In addition, by adopting a wireless communication system, installation work is simplified, and installation is easy even in places where installation is difficult.

  Moreover, even when a neighboring house is adjacent, by providing an alarm management unit that identifies an alarm managed by the gas meter device by an identification signal communicated between the alarm device and the gas meter device. The alarm device of the gas meter device and the alarm device of another house can be identified by an identification signal communicated by radio signals.

  Furthermore, the alarm device management unit can take correspondence of a plurality of alarm devices with respect to one gas meter device by setting an identification signal preset in the gas meter device in the alarm device. It can be identified as a target alarm.

  In addition, the alarm device management unit sets the identification signal set in the alarm device by setting the identification signal preset in the alarm device in the gas meter device, thereby identifying the alarm device as the management target alarm device of the gas meter device. No device is required, and a small and low-cost alarm device can be provided.

  And the said alarm device management part gives the freedom degree to the setting of an identification signal by setting the same identification signal to each of the said gas meter apparatus and the said alarm device at the time of installation, respectively, even when a system is adjacent. Corresponding setting between the alarm device and the gas meter device can be facilitated.

  Furthermore, the present invention provides a gas meter device that measures a gas use flow rate by using a gas appliance connected to a gas flow channel, and the gas meter device periodically measures a flow rate value of a gas on the flow channel. And an external alarm device, a communication unit for identifying the alarm device and receiving device information for notifying an operation status of the alarm device, and a communication management unit for managing a communication state of the device information, The communication management unit controls the communication unit so that the communication unit does not operate when the device information is periodically received and the flow rate measuring unit measures the gas flow rate.

  Furthermore, the present invention provides an alarm device that detects an abnormal event and notifies the occurrence of the abnormal event. The alarm device identifies a sensor that detects the abnormal event and the alarm device, and the operation of the alarm device. A communication unit that transmits device information for notifying a situation to an external gas meter device, and a communication management unit that manages a communication state of the device information, and the communication unit periodically transmits the device information; and When the sensor detects an abnormal event, the device information including abnormal information indicating the abnormal event is continuously transmitted, and when the device information is transmitted, the communication is performed so that the sensor is stopped. The management unit controls the communication unit and the sensor.

  According to the present invention, it is possible to smoothly exchange information between the gas meter device and the alarm device, and it is possible to suppress useless communication and save power. In addition, the security function can be strengthened.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a conceptual diagram showing a usage situation of an alarm management system of the present invention in a house. The alarm device management system of this embodiment includes a gas meter device 100 installed outdoors and an alarm device 200 provided indoors and connected to the gas meter device 100 by wireless communication. In FIG. 1, the alarm device 200 includes a fire alarm device 200a, a CO alarm device 200b, and a gas alarm device 200c.

  The gas meter device 100 includes a communication unit (first communication unit) 60, and the alarm device 200 includes a communication unit (second communication unit) 210 (210a, 210b, 210c) that performs wireless communication with the communication unit 60. Further, in FIG. 1, a gas appliance 400 connected to the gas flow path G is shown. The gas appliance 400 includes a hot water heater 400a installed outdoors and a gas table 400b installed indoors.

  FIG. 2 is a block diagram showing details of the alarm management system of FIG. As described above, the alarm device management system of the present invention includes at least the gas meter device 100 and the alarm device 200. As shown in FIG. 1, the gas meter device 100 is installed at the entrance of a gas supply pipe in each household, and gas appliances 400 a (hot water heater in FIG. 1), 400 b (gas table in FIG. 1), 400 c ( It measures the flow rate and amount of gas used as the fluid to be measured used in any gas appliance). Here, the gas appliances 400a, 400b, and 400c are connected to a single gas flow path (one gas flow path from the outside).

  The gas meter device 100 includes a shutoff valve 17, a flow rate measurement unit 18, a control unit 20, a communication management unit 30, an operation unit 40, a storage memory 50, a communication unit 60, a display unit 70, and a battery 80. The gas flow path 90 is included. Further, the gas meter device 100 is provided in a gas supply pipe that supplies the gas G1 from the outside, and a pipe that supplies the gas G3 to the gas appliances 400a, 400b, and 400c installed in each household is connected to the downstream side thereof. Has been.

  The control unit 20 controls the operation of the gas meter device 100, and mainly includes a processor (not shown) that operates according to a predetermined program. The control unit 20 includes various memories (not shown) such as a memory for storing various programs executed by the processor, a memory serving as a work area at the time of program execution, and a memory for storing various setting data of the gas meter device. . The control unit 20 calculates a flow rate difference value corresponding to a change in the gas flow rate based on the gas flow rate detection signal from the flow rate measurement unit 18, and based on the flow rate difference value, the activated gas appliance, the stopped gas appliance, etc. A specific value is determined for each gas appliance 400, and operation status information for each gas appliance is generated.

  The shut-off valve 17 is provided upstream of the gas flow path of the flow rate measuring unit 18 and plays a role of shutting off gas supply upon receiving a gas shut-off signal from the control unit 20 in an emergency or the like. As the shut-off valve 17, various types such as an electromagnetic valve, an electric valve, and an air operation valve are used.

  The flow rate measuring unit 18 is provided in the gas flow path 90 in the gas meter device 100 and detects a gas flow rate (instantaneous flow rate). In this embodiment, an ultrasonic flow meter (ultrasonic flow meter) is used as described later. However, as a measurement method, other flow measurement methods can be performed in a constant cycle in a short time such as a fluidic method. Any continuous measurement can be used.

  The operation unit 40 is configured by an operation mechanism such as a switch, a button, or a touch panel provided outside the gas meter device 100, and is a part for inputting a user operation. A signal corresponding to the input operation is transmitted to the control unit 20. In response to this, the control unit 20 determines information desired by the user.

  The storage memory 50 includes identification information (alarm device ID) for identifying each alarm device used in advance, and device information indicating the operation status (normal operation, malfunction of operation, etc.) is stored for each alarm device. Is done. The alarm device (a), alarm device (b), and alarm device (c) in the figure correspond to the alarm devices 200a, 200b, and 200c in FIG. 1, respectively. The communication unit 60 receives the device information for each alarm device stored in the storage memory 50 from each alarm device 200 and transmits the device information to the alarm management center 600 via an external network (such as the Internet) 500. Send information. The display unit 70 includes a liquid crystal panel that displays the operation status.

  The communication management unit 30 manages the communication state between the communication unit 60 and the communication unit 210 of the alarm device 200. The battery 80 serves as a power source for the entire gas meter device.

  Next, the configuration of the alarm device 200 will be described. The alarm device 200 includes a communication unit 210, a communication management unit 220, a sensor 230, and a battery 240. The communication unit 210 exchanges the above-described device information with the communication unit 60 of the gas meter device 100. The communication management unit 220 manages the communication state between the communication unit 210 and the communication unit 60 of the gas meter device 100. The battery 240 is a power source for the entire alarm device. The sensor 230 detects various abnormal events such as gas leakage, fire occurrence, CO generation, etc., and various types of sensors are employed depending on the detection target. When the abnormal event is detected by the sensor 230, the notifying means (buzzer, light emitting element, etc.) (not shown) notifies the resident of the occurrence of the abnormal event, and notifies the gas meter device 100 via the communication unit 210. A signal (abnormal event occurrence notification information) for notifying the occurrence of occurrence is transmitted. In FIG. 2, unlike FIG. 1, only one alarm device 200 is shown (for example, only the fire alarm device 200a), and a plurality of illustrations are omitted.

  Next, the gas flow measurement operation in the gas meter device 100 will be described.

  FIG. 3 is an explanatory diagram of ultrasonic flow velocity measurement employed in the flow rate measurement unit 18 of the present embodiment. The gas channel 90 has a rectangular cross section, and a pair of ultrasonic transmitters / receivers 10a and 10b flows on the wall surface of the gas channel 90 that is perpendicular to the direction in which the gases G1 and G2 flow. They are mounted diagonally opposite each other at an angle φ on the upstream and downstream sides of the road. Ultrasonic waves are alternately transmitted and received between the ultrasonic transmitters / receivers 10a and 10b, and the difference between the propagation times of the ultrasonic waves in the forward direction and the reverse direction with respect to the flow of the fluid is measured at regular intervals to generate a propagation time difference signal. . Based on this propagation time difference signal, the instantaneous gas flow rate is detected.

In FIG. 3, L is a measurement distance defined between the ultrasonic transceivers, where t1 is the transmission time from the upstream, t2 is the transmission time from the downstream, and C is the speed of sound.
(Expression 1) V = L / 2 cos φ ((1 / t1) − (1 / t2)).

  The measurement time interval can be set within a range where ultrasonic waves can be transmitted and received. Since the time to change due to activation and control varies depending on the gas appliance, reducing the measurement time interval is advantageous in that the appliance discrimination is performed instantaneously. However, if the measurement interval is shortened, battery consumption increases. Further, when the measurement interval is a two-digit order interval equivalent to the membrane type used in the conventional gas meter, it is difficult to judge by looking at the difference in flow rate change. In the present embodiment, as will be described later, when a normal gas appliance is not used, periodic measurement is performed at intervals of 2 seconds, the difference value is taken to determine the activation of the gas appliance, and the measurement interval is started after the gas appliance is activated. Control to shorten the time. It is possible to further reduce the time interval.

  Next, a basic determination procedure of the operating state of the gas appliance will be described with reference to FIG. FIG. 4 is a flowchart showing basic processing relating to determination of use of a gas appliance.

  The flow rate measurement unit 18 of the gas meter device 100 measures the gas flow rate value, for example, every 2 seconds (step S101). This measurement timing is generated, for example, by the control unit 20 (see FIG. 6). The measured flow rate value is a so-called instantaneous flow rate (amount passing through the measurement point in a short time), but the flow rate measurement unit 18 sends the flow rate value measured every 2 seconds to the control unit 20. And the control part 20 calculates the difference value of the variation | change_quantity of the flow volume value for every 2 second (step S102). That is, the control unit 20 differentiates a plurality of measured flow rate values and calculates a flow rate difference value (difference data) every 2 seconds.

  Furthermore, the control unit 20 compares the calculated flow rate difference value with a comparison determination value (determination information) for each gas appliance registered in the appliance registration unit including a memory (not shown) (step S103). And when it determines with a flow volume difference value being larger than a comparison determination value (step S103; YES), the control part 20 determines that the gas appliance started (step S104). On the other hand, when it determines with a flow volume difference value being smaller than a comparison determination value (step S103; NO), the process after step S102 is performed again.

  The comparison determination value (determination information) here is a flow rate difference value specific to the gas appliance that has been obtained in advance, and is input to the appliance registration unit (not shown) by the input from the operation unit 40 when installing the gas appliance. be registered.

  On the other hand, when it is determined in step S104 that an arbitrary gas appliance has been activated, the control unit 20 further compares the flow rate difference value with the gas appliance registered in the appliance registration unit 80, and determines the activated gas appliance. Determination is made (step S105), and operation status information is generated. Thereafter, the determination is terminated in a special case such as when the appliance determination operation is stopped (step S106; NO), and in the normal case, the determination is continued (step S106; YES).

  During the gap time of the periodic measurement operation (2-second interval) in step S101, the control unit 20 can perform the processes in steps S102 to S106. Even if the determination process becomes complicated and the processing time is extended, the flow rate measurement unit 18 can be accurately measured without affecting the processing operation of the flow rate measurement unit 18. In addition, the number of clocks of the microcomputer during the processing of the flow rate measuring unit 18 and the processing of the control unit 20 can be changed, and in the case of simple discrimination processing, the current consumption is reduced by reducing the clock current, thereby extending the battery life. Can be achieved.

  Next, communication and management between the gas meter device 100 and the alarm device 200 will be described. In the transmission / reception of the device information described above, the communication management unit 30 of the gas meter device 100 and the communication management unit 220 of the alarm device 200 manage the communication state of the device information between the communication unit 60 and the communication unit 210. In the gas meter device 100, the communication management unit 30 controls and manages the transmission / reception state of the communication unit 60. On the other hand, in the alarm device 200, the communication management unit 220 controls and manages the transmission / reception state of the communication unit 210.

  FIG. 5 is a timing chart showing timing for transmitting device information from the alarm device 200 to the gas meter device 100. The device information includes identification information (alarm device ID) for identifying each alarm device and operation status information indicating the operation status (normal operation, malfunction of operation, etc.) of the alarm device, and the communication unit 210 includes the battery 240, Device information including operation status information regarding other components is wirelessly transmitted to the communication unit 60 of the gas meter device 100. The device information is transmitted from the alarm device to the gas meter device when it is turned on in the timing chart of FIG. This timing chart is created by the communication management unit 220, and the communication management unit 220 controls the communication unit 210 to periodically transmit the device information to the gas meter device. In response to the transmission of the device information, the communication unit 60 of the gas meter device 100 periodically acquires the device information.

  Device information is transmitted with a large duty (long on-time) as shown in the figure in order to reliably notify the state of the alarm to the gas meter device. Thereby, the gas meter apparatus 100 can receive apparatus information reliably. On the other hand, the sensor 230 in the alarm device 200 is turned on when the device information is not communicated (when the device information signal is turned off) (on / off control by a control unit not shown), and whether or not an abnormal event is detected. A sensor signal indicating this is transmitted from the alarm device to the gas meter device. Then, once an abnormal event is detected by the sensor 230, the communication management unit 220 controls the communication unit 210 so as to continuously transmit the device information (generation of a continuous ON signal). In other words, the communication management unit 220 controls to stop the sensor 230 when the communication unit 210 is transmitting device information.

  FIG. 6 shows an operation timing chart of the gas meter device 100. The control unit 20 generates a flow rate measurement signal for measuring the gas flow rate so that the ON signal and the OFF signal are repeatedly set at a constant period, and the flow rate measurement unit 18 measures the gas flow rate. With the timing chart as shown in FIG. 6, the gas flow rate is always measured at a constant frequency, and the time of the ON signal (ON time) is shortened to achieve low power consumption. When the gas flow rate is not measured (when the flow rate measurement signal is off), the communication management unit 30 turns on the communication signal and acquires device information from the alarm device 200 via the communication unit 60. In other words, the communication management unit 30 controls the communication unit 60 not to operate when the gas meter device measures the gas flow rate. These timing operations are possible because of an ultrasonic gas meter device that can measure the flow rate periodically at a predetermined time, and the number of conventional membrane types that passively generate flow rate pulses depending on the flow. In the meter device, the timing may overlap, which is difficult to realize.

  The communication unit 60 of the gas meter device 100 receives periodic device information from the alarm device 200 and periodically receives the device information. Regardless of the device information from the alarm device 200, You may make it receive apparatus information voluntarily regularly. In this case, the communication management unit 30 controls the communication unit 60 so that the communication unit 60 periodically receives device information from the alarm device. The communication unit 60 transmits a command signal for transmitting the device information to the alarm device 200 and periodically receives the device information from the alarm device 200 receiving the command signal.

  In the above-described embodiment, the communication management units 30 and 220 are provided in both the gas meter device 100 and the alarm device 200. However, the communication management unit is not necessarily provided in both the gas meter device and the alarm device, and may be provided in either one. Moreover, when there are a plurality of alarm devices, the device information can be obtained by communicating with the plurality of alarm devices at the same communication timing of the gas meter device.

  Further, as shown in FIG. 7, even when two houses 1 and 2 are adjacent to each other, an alarm device for identifying an alarm device managed by the gas meter device by an identification signal communicated between the alarm device and the gas meter device. By providing the storage memories 50 and 250 as the management unit, the alarm device of the gas meter device and the alarm device of another house can be identified by an identification signal that communicates with a radio signal.

  For example, the storage memory 250 as an alarm device management unit stores and sets an identification signal set in advance in the gas meter device 100, so that a plurality of alarm devices can be identified even when neighbors concentrate, and the gas meter A plurality of alarm devices can correspond to one device, and a plurality of management target alarm devices can be installed in one house. In addition, each alarm device requires a memory memory setting device, which makes the alarm device expensive, but on the other hand, the alarm device can be set on the alarm device side, so it is convenient to work indoors. Good.

  As another method, the storage memory 50 serving as an alarm management unit can identify an alarm as a management target alarm of the gas meter device by setting an identification signal preset in the alarm device in the gas meter device 100. Therefore, the alarm device does not require an identification signal setting device, and can be a small and low-cost alarm device.

  Furthermore, as another method, the storage memory as the alarm device management unit sets the same identification signal to each of the gas meter device 100 and the plurality of alarm devices at the time of installation, thereby providing a degree of freedom in setting the identification signal. Even if the systems are adjacent to each other, it is possible to easily set the correspondence between the alarm device and the gas meter device.

  FIG. 8 is a timing chart showing a state in which device information signals are transmitted and received between the gas meter device 100 and the alarm device 200. This is different from the communication timing shown in FIGS. 5 and 6 in that transmission timing and reception timing are synchronized and transmission / reception is performed by a shake hand. By transmitting and receiving at a fixed time in this way, if the communication timing is synchronized, transmission and reception can be completed in a short time, current consumption can be reduced as much as possible, and in the case of an alarm device operated by a battery The battery can have a long life.

  Moreover, the communication management part 30 can also control the transmission / reception timing of apparatus information appropriately according to the result of the instrument discrimination | determination operation | movement which the gas meter apparatus 100 performs. For example, if the result of the appliance discriminating operation is no operating appliance, the communication interval for obtaining the device information is lengthened, or the communication for obtaining the appliance information when the result of the appliance discriminating operation is determined to be the operating state of the gas table. The control method of the communication management unit can be changed according to the equipment being used so as to shorten the interval, and it is safe by strictly managing the alarm device according to the operating equipment and quickly finding anomaly detection. The battery life can be extended by improving performance and suppressing wasteful communication and reducing power consumption.

  As the device information, various information indicating the operation status of the device can be considered, and is not particularly limited. For example, as the device information, the expiration date information of the alarm device 200 set by a manufacturer or the like, or the alarm device spontaneously detects can be considered. As such expiration date information, there is state information of the battery 240 that drives the alarm device 200. That is, when it is detected that the capacity of the battery 240 is decreasing and the life is approaching, the communication unit 210 transmits to the communication unit 60 expiration date information indicating that the battery 240 is reaching the end of its life. In addition, the alarm device has an expiration date determined by laws and regulations, but the expiration date information may be used as device information.

  The abnormal event occurrence notification information and device information transmitted from the alarm device 200 to the gas meter device 100 are transmitted via the network 500 to a management center 600 such as a gas company, a manufacturer of the gas meter device or an alarm device, or a public institution. . Based on the received device information, the management center 600 can grasp the operation status of a specific alarm device in each house, and notifies the user as necessary. Here, public institutions include fire stations, police stations, city halls, and the like. By providing such device information, for example, a business model can be considered in which expenses are paid to a gas company as an information provider from a city hall as an information receiver. By adopting such a system, the general public is allowed to manage the alarms and gas appliances at public expense, realizing a safer life.

  Although various embodiments of the present invention have been described, the present invention is not limited to the matters shown in the above-described embodiments, and those skilled in the art may modify or apply the description based on the description of the specification and well-known techniques. The present invention is intended to be included in the scope for which protection is sought.

  ADVANTAGE OF THE INVENTION According to this invention, the communication state between the alarm device and gas meter apparatus in an alarm device management system can be managed, and it becomes possible to maintain the communication between an alarm device and gas meter apparatus appropriately.

The conceptual diagram which shows the usage condition of the alarm device management system of this invention. The block diagram of the alarm management system containing the gas meter apparatus in embodiment of this invention Configuration diagram of a flow rate measurement unit in an embodiment of the present invention The flowchart of the gas appliance discrimination | determination operation | movement in embodiment of this invention Timing chart showing timing to transmit device information and sensor signal from alarm to gas meter device Timing chart showing gas flow measurement and communication timing with alarm in gas meter device The conceptual diagram which shows the other usage condition of the alarm device management system of this invention. Timing chart of signal transmission and reception between alarm and gas meter device Block diagram of a conventional alarm-compatible system meter

Explanation of symbols

17 Shut-off valve 18 Flow rate measurement unit 20 Control unit 30 Communication management unit 40 Operation unit 50 Storage memory 60 Communication unit 70 Display unit 80 Battery 90 Gas flow channel 100 Gas meter device 200 Alarm 210 Communication unit 220 Communication management unit 230 Sensor 240 Battery 250 Storage memory 500 Network 600 Management center

Claims (19)

A first communication unit provided in the gas meter device;
A second alarm is provided in an alarm device that detects an abnormal event and notifies the occurrence of the abnormal event, identifies the alarm device, and transmits device information for notifying an operation status of the alarm device to the first communication unit. The communication department of
A communication management unit that is provided in at least one of the gas meter device and the alarm device, and manages a communication state between the first communication unit and the second communication unit;
Alarm management system with The alarm management system according to claim 1,
The communication management unit is provided in the alarm device and controls the second communication unit to periodically transmit the device information, and the first communication unit is transmitted from the second communication unit. An alarm management system for periodically acquiring the device information. The alarm management system according to claim 2,
When the alarm device detects an abnormal event, the alarm device management system controls the second communication unit to continuously transmit the device information including the abnormal information indicating the abnormal event. The alarm management system according to claim 2,
The said communication management part is an alarm management system which carries out stop control of the sensor of the said alarm that detects an abnormal event, when the said 2nd communication part is transmitting the said apparatus information. The alarm management system according to claim 1,
An alarm management system in which the communication management unit is provided in the gas meter device and controls the first communication unit so as to periodically receive the device information. The alarm management system according to claim 5,
The communication management unit is an alarm management system that controls the first communication unit not to operate when the gas meter device measures a gas flow rate. The alarm management system according to claim 1,
At least two communication management units are provided in the alarm device and the gas meter device, and the first and second communication units communicate regularly to obtain device information of the alarm device and information of the gas meter device. An alarm management system that controls the first and second communication units to transmit and receive. The alarm management system according to any one of claims 1 to 7,
The alarm device management system, wherein the device information includes expiration date information of the alarm device. The alarm management system according to claim 8,
The alarm management system, wherein the expiration date information is status information of a battery that drives the alarm. The alarm management system according to any one of claims 1 to 9,
An alarm management system in which the alarm is at least one of a gas leak alarm, a fire alarm, and a CO alarm. The alarm management system according to any one of claims 1 to 10,
The first communication unit and the second communication unit are alarm management systems in which communication is performed wirelessly. The alarm management system according to claim 11,
An alarm management system comprising an alarm management unit that identifies an alarm managed by the gas meter device based on an identification signal communicated between the alarm and the gas meter device. The alarm management system according to claim 12,
The said alarm device management part is an alarm device management system identified as the management object alarm device of the said gas meter apparatus by setting the identification signal preset to the said gas meter apparatus to the said alarm device. The alarm management system according to claim 12,
The said alarm device management part is an alarm device management system identified as the management object alarm device of the said gas meter apparatus by setting the identification signal preset to the said alarm device to the said gas meter apparatus. The alarm management system according to claim 12,
The said alarm device management part is an alarm device management system which sets the same identification signal to each of the said gas meter apparatus and the said alarm device, and identifies as a management object alarm device of the said gas meter apparatus. The alarm management system according to any one of claims 1 to 15,
The gas meter device includes a flow rate measurement unit that periodically measures a flow rate value of a gas on a gas flow path,
The communication management unit controls the communication unit so as not to operate when the first communication unit periodically receives the device information and the flow rate measurement unit measures a gas flow rate. Vessel management system. The alarm management system according to any one of claims 1 to 15,
The alarm device includes a sensor that detects an abnormal event,
When the second communication unit periodically transmits the device information and the sensor detects an abnormal event, the device information including abnormal information indicating the abnormal event is continuously transmitted, and the device The alarm management system in which the communication management unit controls the communication unit and the sensor to stop the sensor when transmitting information. A gas meter device for measuring a gas use flow rate by using a gas appliance connected to a gas flow path,
A flow rate measurement unit for periodically measuring the flow rate value of the gas on the flow path;
An external alarm device and a communication unit for identifying the alarm device and receiving device information for notifying the operation status of the alarm device,
A communication management unit for managing a communication state of the device information,
A gas meter device in which the communication management unit controls the communication unit so that the communication unit does not operate when the device information is periodically received and the flow rate measurement unit is measuring a gas flow rate. An alarm device that detects an abnormal event and notifies the occurrence of the abnormal event,
A sensor for detecting an abnormal event;
A communication unit for identifying the alarm device and transmitting device information for notifying the operation status of the alarm device to an external gas meter device;
A communication management unit for managing a communication state of the device information,
When the communication unit periodically transmits the device information and the sensor detects an abnormal event, the device information including the abnormal information indicating the abnormal event is continuously transmitted, and the device information is transmitted. The communication management unit is an alarm device that controls the communication unit and the sensor so as to stop the sensor when the sensor is in operation.

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