JP5691017B2 - Alarm compatible system meter - Google Patents

Description

  The present invention relates to an apparatus for performing a measure for preventing an accident in cooperation with a gas meter for measuring a gas flow rate and a CO alarm installed indoors.

  In recent years, accidents due to aging of gas appliances have increased, and inspection of specific appliances has been required due to revisions to the Consumer Product Safety Act. Business operators also place importance on security operations such as inspection of supply facilities and investigation of equipment.

  Conventionally, what was described in patent document 1 was known as this kind of instrument monitoring apparatus, for example. The configuration will be described below with reference to FIG.

  As shown in FIG. 8, when the alarm device 1 detects gas, information is sent to the microcomputer meter 2 via the signal line, and further from the microcomputer meter 2 through the NCU 3 to the monitoring center (not shown) via the telephone line 4. To report to. As described in various documents, when the alarm device 1 detects a gas leak and is sent to the microcomputer meter 2, the microcomputer meter 2 stops the gas supply and blocks the gas passage.

  Also, for example, an instrument monitoring device that appropriately controls the function of restricting the use of an instrument according to the concentration level of carbon monoxide (hereinafter referred to as CO) gas is known as described in Patent Document 2. . The configuration will be described below with reference to FIG.

  As shown in FIG. 9, for example, when it is determined that there is a leak signal from the CO alarm device 14, a CO leak device is estimated from the flow rate information of the flow rate information acquisition unit 12 and stored in the CO leak device processing unit 13. According to the comparison result with the flow rate information, the allowable value of continuous use time is changed in the shortening direction.

JP-A-11-306463 JP 2009-212465 A

  However, in the conventional configuration, even if the alarm device detects the CO gas at an early stage, the microcomputer meter detects the flow rate in the normal instrument use state, so the CO gas generating instrument cannot be specified. In addition, when the microcomputer meter shuts off the gas passage and stops the gas supply, when using a plurality of instruments, it is not known which instrument is a CO gas generating instrument, resulting in a delay in the repair and repair of the instrument. .

  Even if CO leakage devices are estimated and the allowable value of continuous use time is changed in the shortening direction, if the flow patterns and flow information of different devices are very similar at the time of estimation, specify the CO leakage devices. There was a problem that it was wrong and an appropriate response could not be taken.

The present invention solves the above-described conventional problems, and performs appliance discrimination, monitors the CO generation status for each appliance, and externally even if appliances that generate CO from the detection of low-concentration CO are duplicated. It is an object to provide a system meter for an alarm device that is capable of appropriate early response by communicating with, and has high reliability and high safety.

  In order to solve the above-described conventional problems, an alarm-compatible system meter according to the present invention is connected to a gas supply pipe and includes a shut-off means for supplying and shutting off a gas, a control means for controlling the shut-off means, and a flow path Measured by the flow rate measuring means for measuring the flow rate of the gas flowing at a predetermined time interval, the arithmetic processing means for processing the flow rate value measured by the flow rate measuring means to detect the flow rate change pattern, and the flow rate measuring means Household device capable of communicating with a device for distinguishing and registering a device to be used based on a flow rate value or information from the arithmetic processing means, an external communication means capable of communicating with the outside, and a home display device provided with the communication means A communication means, a CO alarm device communication means for communicating information with a CO alarm device provided with the communication means, and a C level at the time of use of the appliance by the CO level input from the appliance discriminating means and the CO alarm device communication means. A CO monitoring level excess counter that monitors the occurrence status for each of a plurality of monitoring levels and for each device, and the control means has a CO level from the CO alarm that exceeds any one of the monitoring levels after the start of use of the device. When the appliance discriminating means determines that the appliance to be used is a single appliance in the initial determination at the start of using the appliance, the corresponding CO monitoring level excess counter of the appliance determined to be used is increased and duplicated in the initial determination. When it is determined that the device is a non-single device, the corresponding CO monitoring level excess counter of each duplicated device is increased, and when the subsequent determination by the device determining means shifts from the overlap determination to the single determination, It is characterized in that the corresponding CO monitoring level excess counter is down, and any of the CO monitoring level excess counters is monitored. When the number of monitoring times corresponding to the bell has been reached, all the appliance information that has reached the number of monitoring times and the excess monitoring level information are communicated to the outside or in-house display device, and when high-concentration CO is generated, The gas is cut off regardless of the situation.

  As a result, even if a device that generates CO from the time of detection of low-concentration CO is determined to be duplicated, an appropriate early response is possible by communicating to the outside.

  The alarm-compatible system meter of the present invention can detect signs of equipment abnormalities at the stage of low non-hazardous CO generation, and can take early measures such as inspection and repair. Even if it is used repeatedly and cannot be judged individually, it is possible to narrow down the equipment that generates CO to the minimum, and it is possible to respond appropriately, and even when the response is delayed, CO can be reduced by reducing the number of monitoring according to the monitoring level. As the concentration increases, the re-notification interval is shortened, so that a reliable response can be implemented and safety can be improved. When high-concentration CO is generated, safety can be achieved by shutting off the gas regardless of the contents and situation of the instrument discrimination. Can be secured.

The block diagram of the alarm corresponding system meter in Embodiment 1-4 of this invention The block diagram which shows the concept of the CO monitoring level excess counter of the alarm meter corresponding system meter in Embodiment 1 of this invention The flowchart which shows the process at the time of the instrument determination of the alarm meter corresponding system meter in Embodiment 1 of this invention The flowchart which shows the CO monitoring level excess counter update process of the alarm corresponding system meter in Embodiment 1 of this invention The flowchart which shows the monitoring process of the CO monitoring level excess counter of the alarm meter corresponding system meter in Embodiment 2 of this invention. The flowchart which shows the monitoring process of the CO monitoring level excess counter of the alarm meter corresponding system meter in Embodiment 3 of this invention. The flowchart which shows the process at the time of the update of the non-gas equipment CO monitoring level excess counter of the alarm meter corresponding system meter in Embodiment 4 of this invention Block diagram of a conventional first instrument monitoring device Block diagram of a conventional second instrument monitoring device

  According to a first aspect of the present invention, there is provided a shut-off means connected to a gas supply pipe for supplying and shutting off a gas, a control means for controlling the shut-off means, and a flow rate measurement for measuring the flow rate of the gas flowing through the flow path at regular time intervals. Means, processing means for processing a flow rate value measured by the flow rate measuring means to detect a flow rate change pattern, and a flow rate value measured by the flow rate measuring means or information from the calculation processing means Appliance discriminating means for discriminating and registering, external communication means capable of communicating with the outside, home communication means capable of communicating with the home display device provided with the communication means, CO alarm device including the communication means and information The CO generation status during use of the appliance is monitored for each of a plurality of monitoring levels and for each appliance by the CO alarm device communicating means, the appliance discrimination means, and the CO level input from the CO alarm device communication means. O monitoring level excess counter, and when the CO level from the CO alarm device exceeds one of the monitoring levels after the start of use of the instrument, the control means sets the initial stage at the start of use of the instrument. When it is determined that the device used is a single device in the determination, the corresponding CO monitoring level excess counter of the device determined to be used is increased, and when it is determined that the device is a duplicate device in the initial determination, the corresponding CO monitoring of each overlapping device is performed. When the level excess counter is increased and then the continuous determination of the appliance discriminating means shifts from the duplicate determination to the single determination, the corresponding CO monitoring level excess counter of each appliance that is out of the individual is reduced. is there.

  Thereby, even if it is a case where duplication is determined by initial determination at the time of starting use of the instrument, if it is determined solely by continuous monitoring of the instrument, only the CO monitoring level excess counter of the CO generating instrument is increased, so that the CO generating instrument Can be reliably monitored, and by setting the CO monitoring level to a low concentration, it is possible to catch signs of instrument abnormalities and take early measures such as inspection and repair, thereby improving safety. it can.

  In particular, the second invention has a plurality of control means of the first invention for each monitoring level as the number of monitoring times compared with the CO monitoring level excess counter, and any one of the CO monitoring level excess counters corresponds to the monitoring level. When the number of monitoring times is reached, all the appliance information that has reached the number of monitoring times and the excess monitoring level information are output to the external communication means or the home communication means.

  As a result, even if equipment is used repeatedly for a short time and cannot be determined individually, it is possible to narrow down the equipment that generates CO to the minimum and take appropriate measures. By reducing the number of monitoring times, the interval for re-notification with a rise in CO concentration is shortened, so that it is possible to improve the implementation of safety and improve safety.

  In the third aspect of the invention, in particular, when the control means of the first or second aspect of the invention exceeds a monitoring level with the highest CO concentration among a plurality of monitoring levels for monitoring the CO level input by the CO alarm communication means, Regardless of the determination result of the appliance discrimination means and the number of times of each CO monitoring level excess counter, the gas is output to the shut-off means and the gas is shut off.

  This ensures that the gas can be shut off reliably even if inspection or repair of the CO generator is not taken, or if suddenly high concentrations of CO are generated, ensuring safety. Can do.

In the fourth invention, in particular, the control means according to any one of the first to third inventions is controlled by the CO alarm communication means even when the gas appliance is not in use due to the output from the flow rate measuring means. The input CO level is monitored, and a CO monitoring level excess counter as a non-gas device is provided.

  This enables equipment other than gas, such as petroleum equipment, to monitor CO generation, and as with gas equipment, it is possible to detect signs of equipment abnormalities and take measures such as inspection and repair at an early stage. Can be improved.

  A fifth invention is a program for causing a computer to function as all or part of the alarm meter compatible system meter according to any one of the first to fourth inventions. And since it is a program, at least one part of the program of this invention is easily realizable using a general purpose computer or a server. Also, program distribution and installation can be simplified by recording on a recording medium or distributing a program using a communication line.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments. Further, in the description of each embodiment, the same configuration and the same function and effect are given the same reference numerals, and redundant description will not be given.

(Embodiment 1)
FIG. 1 is a block diagram of an alarm-compatible system meter according to Embodiments 1 to 4 of the present invention.

  In FIG. 1, 20 is a system meter corresponding to an alarm device, which is provided in the middle of a gas supply pipe 21, and one or more gas appliances installed in each customer's house are connected to the downstream piping.

  The alarm-compatible system meter 20 includes a flow rate measuring unit 22, a blocking unit 16, a control unit 23, an in-home communication unit 24, an external communication unit 25, a CO alarm unit communication unit 26, an arithmetic processing unit 27, an appliance determination unit 28, and a CO monitor. An over-level counter 29 is provided.

  The flow rate measuring means 22 is connected in the path of the gas supply pipe 21 and measures the gas flow rate in the gas supply pipe 21.

  The shut-off means 16 is connected in the path of the gas supply pipe 21 and closes the gas supply pipe 21 based on an instruction from the control means 23 to shut off the gas supply.

  The control unit 23 performs security processing such as various warnings and shut-offs in addition to operation control of each unit in the alarm device corresponding system meter 20. The control means 23 composed of a microcomputer and its peripheral circuits implements each function by executing a predetermined operation program and performing corresponding processing.

  The arithmetic processing unit 27 processes the flow rate value measured by the flow rate measuring unit 22 to detect a flow rate change pattern.

  The appliance discriminating means 28 discriminates and registers the appliance to be used based on the flow rate value measured by the flow rate measuring means 22 and information from the arithmetic processing means 27.

  The in-home communication means 24 communicates various information with the in-home display device 30, performs various displays on the in-home display device 30, and inputs information operated on the in-home display device 30.

  The external communication unit 25 has a wired or wireless communication function, and is connected to a management center (not shown) via a public line, for example. The external communication means 25 exchanges various information, commands and signals with the management center.

  The management center is configured to include a computer and the like, and realizes the function of the management unit. The management center includes a processor and an operation program that configure the computer and the like, and performs a corresponding process by executing a predetermined operation program in the processor. Thus, each function is realized.

  The CO alarm device communication means 26 inputs the CO level detected by the CO alarm device 14 by communication, and outputs for confirming the soundness of the CO alarm device 14.

  The CO monitoring level excess counter 29 counts the number of times that the CO level has exceeded a predetermined monitoring level for each appliance from the CO level input from the CO alarm device communication means 26 and the appliance information determined by the appliance discrimination means 28. Is.

  The operation of the alarm-compatible system meter configured as described above will be described below with respect to the processing at the time of updating the CO monitoring level excess counter.

  FIG. 2 is a block diagram showing a concept of the CO monitoring level excess counter of the alarm meter compatible system meter according to the first embodiment of the present invention.

  The CO monitoring level excess counter 29 includes a CO monitoring level excess counter corresponding to a plurality of CO monitoring levels for each appliance determined by the appliance discrimination means 28. For example, when the appliance discriminating means 28 determines that the appliance a is used when the appliance is used and the CO level detected by the CO alarm device 14 exceeds the first monitoring level, the first CO monitoring level excess counter 29a1 of the appliance a is counted. When the appliance discriminating means 28 determines that the appliance is b and the CO level detected by the CO alarm device 14 exceeds the second monitoring level, the second CO monitoring level excess counter 29b2 of the appliance b is counted.

  FIG. 3 is a flowchart showing processing at the time of appliance determination of the alarm-compatible system meter according to Embodiment 1 of the present invention.

  In FIG. 3, the control means 23 determines whether or not there is a flow rate at step (hereinafter referred to as S) 1, and if there is no flow rate, the process exits, and if there is a flow rate, the process proceeds to S2. In S2, the current determination instrument information is saved in the buffer. In S3, the appliance discriminating means 28 determines whether or not the appliance initial determination for determining the appliance based on the flow pattern immediately after the start of use of the appliance has been completed. If the appliance initial determination has been completed, the process proceeds to S9. Proceed to In S4, it is determined whether or not a predetermined time has elapsed since the start of use of the appliance, and it is an initial determination timing. If it is the initial determination timing, an initial determination of the appliance is performed by the appliance discriminating means 28, and information on the determined appliance is stored (S5). ). In S6, it is determined whether or not the instrument determined by the instrument discriminating means 28 is a single instrument. If it is determined that the instrument is a single instrument (hereinafter referred to as a single determination), the single determination information is set in S7. If it is not a determination, that is, if it is applied to a plurality of devices such as the device a, the device b, or the device c and it is determined that the device cannot be specified (hereinafter referred to as duplicate determination), the process proceeds to S8.

  In S9, it is determined whether or not there is single determination information. If there is single determination information, the process proceeds to S8. If there is no single determination information, that is, at the time of overlap determination, continuous monitoring is performed from a change in the flow rate pattern during use of the instrument in S10. Then, appliance determination is performed, determination appliance information is stored, and the process proceeds to S6. In S8, the process of updating the CO monitoring level excess counter is performed, and the process exits.

  Here, the update process of the CO monitoring level excess counter in S8 will be described.

  FIG. 4 is a flowchart showing the CO monitoring level excess counter update processing of the alarm-compatible system meter according to Embodiment 1 of the present invention.

  In FIG. 4, the control means 23 determines in S11 whether there is first monitoring end information. If there is first monitoring end information, the process proceeds to S21. If there is no first monitoring end information, the first CO monitoring level is exceeded in S12. It is determined whether the counter has been increased. If the first CO monitoring level excess counter has been increased, the process proceeds to S16. If it has not been increased, it is determined whether the CO level detected by the CO alarm device 14 is equal to or higher than the first monitoring level ( S13), if it is equal to or greater than the first predetermined value, the first CO monitoring level excess counters of all the determination devices are increased (S14), and the first CO monitoring level excess counter has been set up (S15).

  In S16, it is determined whether or not the determined instrument information determined by the continuous monitoring in S10 and the buffer saved in S2 are the same. If they are different, the first CO monitoring level excess counter of the instrument out of the determination is counted down (S17). For example, when the contents of the buffer are the appliance a, the appliance b, and the appliance c, the first CO monitoring level excess counter of the appliance b that is out of the determination is counted down when the monitoring becomes the appliance a and appliance c by the continuous monitoring in S10.

  In S18, it is determined whether or not the single determination information is set. If there is single determination information, the first monitoring end information is set in S19 and the process proceeds to S21. If the single determination information is not set, the process proceeds to S21.

  In S21, it is determined whether there is second monitoring end information. If there is second monitoring end information, the process proceeds to S31. If there is no second monitoring end information, it is determined in S22 whether the second CO monitoring level excess counter has been increased. If the second CO monitoring level excess counter has been increased, the process proceeds to S26, and if not, it is determined whether or not the CO level detected by the CO alarm device 14 is equal to or higher than the second monitoring level (S23). If this is the case, the second CO monitoring level excess counters of all the determination instruments are increased (S24), and the second CO monitoring level excess counter has been increased (S25).

  In S26, it is determined whether or not the determined instrument information determined by the continuous monitoring in S10 and the buffer saved in S2 are the same. If they are different, the second CO monitoring level excess counter of the instrument out of the determination is counted down (S27). In S28, it is determined whether or not the single determination information is set. If there is single determination information, the second monitoring end information is set in S29, and the process proceeds to S31. If the single determination information is not set, the process proceeds to S31.

  In S23, it is determined whether there is third monitoring end information. If there is third monitoring end information, the process is terminated. If there is no third monitoring end information, it is determined in S32 whether the third CO monitoring level excess counter has been increased. If the third CO monitoring level excess counter has been increased, the process proceeds to S36, and if not, it is determined whether or not the CO level detected by the CO alarm device 14 is equal to or higher than the third monitoring level (S33). If so, the third CO monitoring level excess counters of all the determination devices are increased (S34), and the third CO monitoring level excess counter has been set up (S35).

In S36, it is determined whether or not the determined instrument information determined by the continuous monitoring in S10 and the buffer saved in S2 are the same. If they are different, the third CO monitoring level excess counter of the instrument out of the determination is counted down (S37). In S38, it is determined whether or not the single determination information is set. If there is single determination information, the third monitoring end information is set in S39 and the process is terminated.

  In addition, although the three levels have been described as the monitoring levels to be compared with the CO level, the number of stages is not limited to this.

  As described above, in the present embodiment, even if the overlap determination is made by the initial determination at the start of the use of the instrument, the CO monitoring level excess counter of the CO generating instrument is determined if it is determined solely by the continuous monitoring of the instrument. It is possible to reliably monitor CO generating equipment by setting up only, and by setting the CO monitoring level to a low concentration, it is possible to catch signs of equipment abnormality and take measures such as inspection and repair at an early stage Thus, safety can be improved.

(Embodiment 2)
FIG. 5 is a flowchart showing the monitoring process of the CO monitoring level excess counter of the alarm meter compatible system meter according to the second embodiment of the present invention. The control unit 23 shown in FIG. The block diagram of the alarm meter compatible system meter is the same as FIG. That is, the control means 23 stores a program for executing the control flow from S40 to S52 shown in FIG.

  Note that the processing related to the initial determination of the appliance, continuous monitoring, and CO monitoring level excess counter update is the same as S1 to S10 in FIG. 3 and S11 to S39 in FIG.

  In FIG. 5, the control means 23 clears the communication information in S40, determines in S41 whether or not the first CO monitoring level excess counter for each appliance is greater than or equal to the first monitoring count, and if not greater than the first monitoring count, proceeds to S43. If it is equal to or greater than the first number of monitoring times, the corresponding appliance and the first CO monitoring level excess information are added to the communication information in S42, and the process proceeds to S43. In S43, it is determined whether or not all the devices have been checked. If not completed, the process proceeds to S41, and if completed, the process proceeds to S44.

  In S44, it is determined whether or not the second CO monitoring level excess counter for each appliance is greater than or equal to the second number of monitoring times. If it is not greater than or equal to the second number of monitoring times, the process proceeds to S46. The second CO monitoring level excess information is added, and the process proceeds to S46. In S46, it is determined whether or not all the devices have been checked. If not completed, the process proceeds to S44, and if completed, the process proceeds to S47.

  In S47, it is determined whether or not the third CO monitoring level excess counter for each appliance is greater than or equal to the third monitoring count, and if it is not greater than or equal to the third monitoring count, the process proceeds to S49. The third CO monitoring level excess information is added, and the process proceeds to S49. In S49, it is determined whether or not all the devices have been checked. If not completed, the process proceeds to S47, and if completed, the process proceeds to S50.

  In S50, it is determined whether there is information in the communication information. If there is information, the communication information is output to the external communication means 25 in S51, and the communication information is output to the in-home communication means 24 in S52.

  Although the number of times of monitoring is compared with each CO monitoring level excess counter, the same number may be used regardless of the monitoring level.

  As described above, in this embodiment, it is possible to provide the number of times of monitoring corresponding to each monitoring level, and repeatedly notify the outside or the home display device, and the higher the monitoring level, the lower the number of times of monitoring. Thus, the re-notification interval is shortened as the CO concentration increases, and it is possible to implement a reliable response and improve safety, thereby improving safety.

(Embodiment 3)
FIG. 6 is a flowchart showing the monitoring process of the CO monitoring level excess counter of the alarm meter corresponding system meter according to the third embodiment of the present invention. The control unit 23 shown in FIG. The block diagram of the alarm-compatible system meter is the same as FIG. That is, the control means 23 stores a program for executing the control flow from S60 to S73 shown in FIG.

  Note that the processing related to the initial determination of the appliance, continuous monitoring, and CO monitoring level excess counter update is the same as S1 to S10 in FIG. 3 and S11 to S39 in FIG.

  In FIG. 6, the control means 23 clears the communication information in S60, determines in S61 whether or not the first CO monitoring level excess counter for each appliance is greater than or equal to the first number of monitoring times, and if not, proceeds to S63. If it is equal to or greater than the first number of monitoring times, the corresponding appliance and the first CO monitoring level excess information are added to the communication information in S62, and the process proceeds to S63. In S63, it is determined whether or not all the devices have been checked. If not completed, the process proceeds to S61, and if completed, the process proceeds to S64.

  In S64, it is determined whether or not the second CO monitoring level excess counter for each appliance is greater than or equal to the second number of monitoring times. If not greater than or equal to the second number of monitoring times, the process proceeds to S66. The second CO monitoring level excess information is added, and the process proceeds to S66. In S66, it is determined whether or not all the devices have been checked. If not completed, the process proceeds to S64, and if completed, the process proceeds to S67.

  In S67, it is determined whether or not the CO level detected by the CO alarm device 14 is equal to or higher than the third monitoring level. If it is equal to or higher than the third monitoring level, the process proceeds to S71. If there is information, the communication information is output to the external communication means 25 in S69, the communication information is output to the in-home communication means 24 in S70, and the process is terminated.

  In S71, the gas is shut off by outputting to the shut-off means 16, the shut-off information is outputted to the external communication means 25 in S72, and the shut-off information is outputted to the in-home communication means 24 in S73 and the process is terminated.

  Although the third monitoring level has been described as the monitoring level to be shut off, it may be newly provided, and the number of stages is not limited to this.

  As described above, in the present embodiment, the gas is surely shut off even if the inspection or repair of the CO generating device is not taken, or even when a sudden high concentration of CO is generated. And safety can be ensured.

(Embodiment 4)
FIG. 7 is a flowchart showing the processing at the time of updating the non-gas equipment CO monitoring level excess counter of the alarm meter compatible system meter according to the fourth embodiment of the present invention, and the control means 23 shown in FIG. The block diagram of the alarm-compatible system meter is the same as in FIG. That is, the control means 23 stores a program for executing the control flow from S80 to S94 shown in FIG.

  In FIG. 7, the control means 23 determines whether or not there is a flow rate (S80), and if there is no flow rate, it determines whether or not the CO level detected by the CO alarm device 14 in S81 is equal to or higher than a predetermined value. Then, it is determined whether or not the CO level is equal to or higher than the predetermined value from the time when the flow rate is present. If the CO level is higher than the predetermined value, the process is skipped. If not, the process proceeds to S83.

  In S83, it is determined whether there is first monitoring end information of the non-gas device. If there is first monitoring end information, the process proceeds to S87. If there is no first monitoring end information, whether the CO level is equal to or higher than the first monitoring level in S84. If it is not less than the first monitoring level, the process proceeds to S85. In S85, the first monitoring level excess counter of the non-gas device is increased, and in S86, the first monitoring end information of the non-gas device is set, and the process proceeds to S87.

  In S87, it is determined whether there is second monitoring end information of the non-gas device. If there is second monitoring end information, the process proceeds to S91. If there is no second monitoring end information, whether the CO level is equal to or higher than the second monitoring level in S88. If it is not less than the second monitoring level, the process proceeds to S89. If not, the process proceeds to S91. In S89, the second monitoring level excess counter of the non-gas device is increased, and in S90, the second monitoring end information of the non-gas device is set, and the process proceeds to S91.

  In S91, it is determined whether or not there is third monitoring end information of the non-gas device. If there is third monitoring end information, the process is terminated. If there is no third monitoring end information, whether the CO level is equal to or higher than the third monitoring level in S92. If it is not less than the third monitoring level, the third monitoring level excess counter of the non-gas device is increased (S93), and the third monitoring end information of the non-gas device is set in S94 and the process is terminated.

  In addition, although the three levels have been described as the monitoring levels to be compared with the CO level, the number of stages is not limited to this. Moreover, although each monitoring level was demonstrated at the same level as a gas apparatus, you may newly provide for non-gas apparatuses.

  As described above, in this embodiment, equipment other than gas, such as petroleum equipment, can also monitor the occurrence of CO, and as with gas equipment, it can detect signs of equipment abnormalities and respond quickly to inspections, repairs, etc. It is possible to improve the safety.

  In each of the above embodiments, the control flow is executed by causing the microcomputer to function with the program stored in the control means, but it is also possible to execute it with hardware instead of the program.

  As described above, since the alarm-compatible system meter according to the present invention can be used not only for the CO alarm device but also for the gas alarm device, it is also applicable to detection of minute gas leaks and minute pipe leaks due to instrument abnormalities. it can.

14 CO alarm 16 Shut off means 20 Alarm system meter 21 Gas supply pipe 22 Flow rate measurement means 23 Control means 24 Home communication means 25 External communication means 26 CO alarm device communication means 27 Arithmetic processing means 28 Instrument discrimination means 29 CO monitoring level Excess counter 30 In-home display device

Claims (5)

A shut-off means connected to the gas supply pipe to supply and shut off the gas;
Control means for controlling the blocking means;
A flow rate measuring means for measuring the flow rate of the gas flowing in the flow path at regular time intervals;
Arithmetic processing means for processing a flow value measured by the flow measuring means to detect a flow rate change pattern;
Appliance discriminating means for discriminating and registering the appliance to be used based on the flow rate value measured by the flow rate measuring means and information from the arithmetic processing means;
An external communication means capable of communicating with the outside;
In-home communication means capable of communicating with an in-home display device provided with communication means;
CO alarm communication means for communicating information with a CO alarm equipped with communication means;
A CO monitoring level excess counter that monitors the CO generation status during use of the appliance for each of a plurality of monitoring levels according to the CO level input from the appliance discriminating means and the CO alarm communication means;
When the CO level from the CO alarm device exceeds one of the monitoring levels after the start of use of the device, the control unit determines that the use device is a single device in the initial determination at the start of use of the device. When it is determined to be used, the corresponding CO monitoring level excess counter of the appliance determined to be used is increased, and when it is determined to be a duplicate instrument in the initial determination, the corresponding CO monitoring level excess counter of each duplicate instrument is increased, A system meter corresponding to an alarm device, wherein, when continuous determination of an appliance discrimination means shifts from duplication determination to independent determination, the corresponding CO monitoring level excess counter of each appliance that is out of isolation is reduced. The control means has a plurality of monitoring levels to be compared with the CO monitoring level excess counter for each monitoring level, and when any one of the CO monitoring level excess counters reaches the monitoring number according to the monitoring level, the number of monitoring times 2. The alarm-compatible system meter according to claim 1, wherein all the appliance information that has reached 1 and the excess monitoring level information are output to the external communication means or the home communication means. When the control means exceeds a monitoring level having the highest CO concentration among a plurality of monitoring levels for monitoring the CO level input by the CO alarm device communication means, the determination result of the appliance discriminating means and each of the CO levels 3. The alarm-compatible system meter according to claim 1, wherein gas is shut off by outputting to the shut-off means regardless of the number of monitoring level excess counters. The control means monitors the CO level input by the CO alarm communication means even when the gas appliance is unused due to the output from the flow rate measuring means, and the CO monitoring level as a non-gas device. The alarm-compatible system meter according to any one of claims 1 to 3, further comprising an excess counter. A program that causes a computer to function as all or part of the gas shutoff device according to claim 1.

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