WO2010084780A1 - ガス遮断装置 - Google Patents
ガス遮断装置 Download PDFInfo
- Publication number
- WO2010084780A1 WO2010084780A1 PCT/JP2010/000407 JP2010000407W WO2010084780A1 WO 2010084780 A1 WO2010084780 A1 WO 2010084780A1 JP 2010000407 W JP2010000407 W JP 2010000407W WO 2010084780 A1 WO2010084780 A1 WO 2010084780A1
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- WIPO (PCT)
- Prior art keywords
- gas
- pressure value
- shut
- predetermined
- output
- Prior art date
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/007—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus comprising means to prevent fraud
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7758—Pilot or servo controlled
- Y10T137/7761—Electrically actuated valve
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8158—With indicator, register, recorder, alarm or inspection means
- Y10T137/8326—Fluid pressure responsive indicator, recorder or alarm
Definitions
- the present invention relates to a gas shut-off device that prevents unauthorized use of the gas due to illegal acquisition of the gas or theft of the gas shut-off device.
- FIG. 12 is a configuration diagram showing a method of coupling the sealing device and the terminal cover.
- the sealing device 2 includes a sealing screw fitting portion 21 for inserting a sealing screw 6 for fixing the terminal cover 3 to the back surface of the meter body.
- the sealing screw fitting portion 21 When the sealing screw fitting portion 21 is removed from the sealing screw 6, it has a dividing groove 22 for easily breaking the sealing device 2.
- the non-contact IC tag 7 is attached to the side surface 23 on the side having the dividing grooves 22 with an adhesive or the like. Then, the sealing screw 6 is pushed into the sealing screw fitting portion 21 to fit the sealing screw fitting portion 21 and the sealing screw 6. As a result, the sealing device 2 seals the meter body.
- FIG. 13 is a configuration diagram illustrating a state in which the sealing device 2 with the non-contact IC tag 7 attached to the side surface 23 is removed from the terminal cover 3, and when the sealing device 2 is removed from the terminal cover 3.
- the sealing device 2 is pulled by pulling in the arrow direction (upward direction) in the figure. Then, by this pulling force, the sealing device 2 is cracked from the dividing groove 22 and the side surface 23 is broken. Accordingly, the non-contact IC tag 7 attached to the side surface 23 is also destroyed.
- the sealing screw 6, that is, the non-contact IC tag 7 cannot be turned without breaking the sealing screw 6.
- the contents cannot be opened. Therefore, when the sealing device 2 is destroyed or replaced by another sealing device 2 by opening the meter body, the identification information and meter transmitted from the non-contact IC tag 7 attached to the sealing device 2 Abnormality can be recognized by the fact that the identification information stored in the main body does not match.
- FIG. 14 is a block diagram of a conventional gas shut-off device.
- Pressure measuring means 32, seismic device 12, shut-off determining means 13, shut-off means 39, flow rate measuring means 35, flow rate storage part 16, integrating part 17 and display part 18 are shown.
- automatic return determination means 19 The shut-off determination unit 13, the flow rate storage unit 16, the integration unit 17, and the automatic return determination unit 19 are configured by, for example, a microcomputer.
- the pressure measuring means 32 detects the pressure of the gas supply pipe, and supplies a detection output signal to the shutoff determining means 13 and the automatic return determining means 19.
- the seismic sensor 12 detects a vibration or an impact caused by an earthquake or other causes, and supplies a detection output signal to the interruption determination means 13 and the automatic return determination means 19.
- the flow rate measuring unit 35 measures the flow rate of the gas flowing through the gas flow path and supplies it to the integrating unit 17.
- the integrating unit 17 calculates an instantaneous flow rate based on the detection output signal from the flow rate measuring unit 35, and calculates the integrated flow rate by integrating the calculated instantaneous flow rate.
- the calculated integrated flow rate is stored in the flow rate storage unit 16 and displayed on the display unit 18.
- the automatic return determining means 19 It is determined whether or not the pressure measured by the measuring unit 32 is equal to or higher than a preset pressure. If the set pressure or higher is ensured, the automatic return determination unit 19 automatically opens the shut-off unit 39. Return. If the set pressure is not ensured in the pressure measurement after the occurrence of the shut-off event, the shut-off means 39 is carried out by going to the place where the gas shut-off device is installed and operating the return switch manually. Is returned to the open state.
- the present invention solves the above-mentioned conventional problem, and after the gas pressure value becomes equal to or lower than the first predetermined pressure value and continues for the first predetermined time or longer, the gas pressure value becomes equal to or higher than the second predetermined pressure value for the second predetermined time.
- An object of the present invention is to provide a gas shut-off device that prevents fraud by shutting down the gas when the event that continues as described above appears a predetermined number of times and disabling the subsequent return operation.
- the gas shut-off device of the present invention is connected to a gas supply pipe and measures shut-off means for supplying and shutting off gas, control means for controlling the shut-off means, and measuring the gas flow rate.
- a flow rate measuring means a pressure measuring means for measuring the pressure of the gas, a return means for returning the gas shut-off state by the shut-off means to a return state through which the gas passes, and an external communication means capable of communication with the outside.
- the means is configured such that the gas pressure value becomes equal to or lower than the first predetermined pressure value after the predetermined operation performed by the operator at the time of installation and continues for the first predetermined time or more, and then the gas pressure value is set to the second predetermined value.
- shut-off means When an event that exceeds the pressure value and continues for the second predetermined time or more appears, outputs to the shut-off means, shuts off the gas, outputs to the external communication means and communicates to the outside, and cannot be returned by the return means Then Since blocking a predetermined operation or by businesses to communicate to the outside by a predetermined operation by the operator, it is obtained by a configuration in which the return allowed by inputting the communication response from the external.
- the operator can surely grasp the occurrence of shut-off due to pipe bypass work, etc. and cannot be prevented only by sealing the device, illegal use by illegal acquisition of gas or theft of gas shut-off device, etc. Can be prevented, and safety can be secured.
- Block diagram of a gas shut-off device in Embodiments 1 to 8 of the present invention The flowchart which shows the process at the time of installation of the gas cutoff device in Embodiment 1 of this invention.
- the flowchart which shows the process at the time of return operation of the gas cutoff device in Embodiment 1 of this invention The flowchart which shows the process after installation of the gas cutoff device in Embodiment 2 of this invention.
- the flowchart which shows the process after installation of the gas cutoff device in Embodiment 3 of this invention.
- requirement of the gas cutoff device in Embodiment 5 of this invention The flowchart which shows the monitoring function interruption
- a shutoff means connected to a gas supply pipe for supplying and shutting off a gas, a control means for controlling the shutoff means, a flow rate measuring means for measuring a gas flow rate, and a gas pressure.
- a pressure measuring means a return means for returning the gas shut-off state by the shut-off means to a return state through which the gas passes, and an external communication means capable of communicating with the outside.
- the gas pressure value becomes equal to or higher than the second predetermined pressure value after the gas pressure value becomes equal to or lower than the first predetermined pressure value by the output from the pressure measuring means and continues for the first predetermined time or longer.
- a continuous event appears a predetermined number of times, it is output to the shut-off means to shut off the gas, and the return by the return means is disabled.
- control means of the first invention is configured to output to the external communication means and communicate to the outside when a predetermined operation performed by an operator or the like is performed at the time of installation.
- the gas pressure value becomes equal to or lower than the first predetermined pressure value due to the output from the pressure measuring means after the predetermined operation performed by the operator at the time of installation of the control means of the first or second invention.
- the gas pressure value becomes equal to or higher than the second predetermined pressure value for a predetermined number of times after continuing for the first predetermined time or more, and the event continues for the predetermined number of times, the gas is shut off and the external communication means is output. Output to the outside and communicate with the outside.
- control means according to any one of the first to third aspects of the invention is continued for the first predetermined time or less because the gas pressure value becomes lower than the first predetermined pressure value by the output from the pressure measuring means. Later, when the gas pressure value becomes equal to or higher than the second predetermined pressure value and an event that continues for the second predetermined time or more appears, it is output to the shut-off means, and after the gas is shut off, it can be restored by a predetermined operation by the operator.
- the configuration is as follows.
- control means according to any one of the first to third aspects of the invention is continued for the first predetermined time or less because the gas pressure value becomes lower than the first predetermined pressure value by the output from the pressure measuring means. Later, when the gas pressure value becomes equal to or higher than the second predetermined pressure value and an event that continues for the second predetermined time or more appears, it is output to the shut-off means, and after shutting off the gas, the external communication means is operated by a predetermined operation by the operator. Output to the outside, communicate with the outside, and enter a response communication from the outside to make it possible to return.
- the sixth aspect of the invention includes a card processing unit including a card processing unit for reading and writing a prepaid card as the control unit according to any one of the first to third aspects, and a card by insertion of an operator-specific card performed by an operator at the time of installation.
- the gas pressure value becomes equal to or higher than the second predetermined pressure value after the gas pressure value becomes equal to or lower than the first predetermined pressure value and continues for the first predetermined time by the output from the pressure measuring means. 2
- an event that lasts for a predetermined time or more appears a predetermined number of times it is output to the blocking means, the gas is blocked, and the return by the returning means is disabled.
- the operator can confirm that the product is normal, including piping, during inspection at the time of installation, and the function can be enabled simply and securely by simply inserting the card for the operator. Therefore, it is possible to grasp the occurrence of interruption due to the like, and to prevent illegal use such as illegal acquisition of gas or theft of the gas cutoff device, and to secure safety.
- control means of the sixth aspect of the invention is configured such that the gas pressure value is reduced by the output from the pressure measuring means after the gas pressure value becomes equal to or lower than the first predetermined pressure value and continues for the first predetermined time.
- the shut-off means When an event that exceeds the second predetermined pressure value and continues for the second predetermined time or more appears, outputs to the shut-off means, and after shutting off the gas, output from the card processing means by inserting the operator-specific card by the business Thus, it is configured so as to be in a returnable state.
- control means of the sixth aspect of the invention is configured so that the gas pressure value is reduced after the gas pressure value becomes equal to or lower than the first predetermined pressure value and continues for the first predetermined time or more by the output from the pressure measuring means.
- the shut-off means When an event that exceeds the second predetermined pressure value and continues for the second predetermined time or more appears, outputs to the shut-off means, and after shutting off the gas, output from the card processing means by inserting the operator-specific card by the business
- the information is output to the external communication means to communicate with the outside, and a response communication is input from the outside to enable the return.
- the operator can easily and reliably manage the fact that the operator has completed the on-site inspection work and has optimized the illegal location by bypass work etc. It can be left and the soundness of external communication can be confirmed.
- the ninth invention is a program for causing a computer to function as all or part of the gas shut-off device according to any one of the first to eighth 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.
- the present invention can achieve the object of the present invention by making the main parts of the first to eighth inventions into embodiments, so the details of the embodiments corresponding to each claim will be described below with reference to the drawings. The description will be given with reference to the best mode for carrying out the present invention. Note that the present invention is not limited to the embodiment. 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.
- FIG. 1 is a block diagram of a gas cutoff device according to Embodiment 1 of the present invention.
- the gas shut-off device 30 is provided in the middle of the gas supply pipe 31, and one or more gas appliances installed in each customer's house are connected to the downstream pipe.
- the gas shut-off device 30 includes a flow rate measuring means 35, a shut-off means 39, a control means 33, a pressure measuring means 32, an external communication means 34, an in-home communication means 36, a card processing means 37, and a return means 38.
- the flow rate measuring means 35 is connected in the path of the gas supply pipe 31 and measures the gas flow rate in the gas supply pipe 31.
- the shut-off means 39 is connected in the path of the gas supply pipe 31, and shuts off the gas supply by closing the gas supply pipe 31 based on an instruction from the control means 33.
- the pressure measuring means 32 is connected in the path of the gas supply pipe 31 and measures the gas pressure in the gas supply pipe 31.
- the control means 33 performs a security process such as various warnings and shut-offs in addition to the operation control of each part in the gas shut-off device 30.
- the control means 33 comprising a microcomputer and its peripheral circuits implements each function by executing a predetermined operation program and performing corresponding processing.
- the external communication means 34 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 34 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 in-home communication means 36 communicates various information with the in-home display device 40, performs various displays on the in-home display device 40, and inputs information operated on the in-home display device 40.
- the card processing means 37 reads and writes fee information and the like to the prepaid card 41 based on an instruction from the control means 33.
- the return means 38 is for returning the gas blocked by the shut-off means 39, and is usually composed of a switch. When the switch is pressed, a signal is input to the control means 33, and the control means 33 is sent to the shut-off means 39. Output and return gas supply.
- FIG. 2 is a flowchart showing processing at the time of installation of the gas cutoff device according to Embodiment 1 of the present invention.
- the control means 33 determines whether or not there has been a predetermined operation at the time of installation by an operator or the like in step (hereinafter referred to as S) 1. If there is no predetermined operation, the process proceeds to S4. It is determined whether the monitoring function valid flag for monitoring unauthorized acquisition of gas by the gas pressure value is 0 (S2). If it is not 0, the process proceeds to S4, and if it is 0, the monitoring function valid flag is set to 1 in S3. In S4, it is determined whether or not the monitoring function valid flag is 1. If it is not 1, the process is terminated. If it is 1, the state in which the gas pressure value is equal to or lower than the first predetermined pressure value has been continued for the first predetermined time or longer in S5.
- S6 it is determined whether or not the pressure drop flag indicating 1 is 1, the process proceeds to S9 if 1, and the process proceeds to S6 if not 1.
- S6 it is determined whether or not the gas pressure value is equal to or lower than the first predetermined pressure value. If the gas pressure value is not lower than the first predetermined pressure value, the process is skipped.
- S7 If not continued for the first predetermined time or longer, the process proceeds to S6, and if continued for the first predetermined time or longer, the flag indicating that the pressure has decreased is set to 1 in S8.
- S9 it is determined whether or not the gas pressure value is equal to or higher than the second predetermined pressure value. If the gas pressure value is not equal to or higher than the second predetermined pressure value, the process is terminated.
- the predetermined operation may be an operation that can only be performed by the business operator.
- the predetermined operation may be performed by pressing the return means 38 a plurality of times with a predetermined interval time, or by a predetermined operation of the switch of the home display device 40.
- a predetermined operation may be performed by connecting to the communication means 34.
- the handy terminal may be wireless, and can be implemented by wireless communication (not shown) with the gas shut-off device 30.
- a function of clearing the check counter may be provided by a predetermined operation that is the same as or different from that at the time of meter reading after the installation.
- FIG. 15 is a diagram showing a change in gas pressure during a gas pipe bypass operation.
- a bypass pipe 42 is attached to the gas supply pipe 31 before and after the gas shut-off device 30 to bypass the gas to be used.
- the gas flow rate flowing to the flow rate measuring means 35 becomes smaller than the actual usage amount, and it becomes possible to illegally acquire gas.
- this pipe has a pipe inspection and the like, and a bypass operation is performed after the installation.
- the gas pressure value measured by the pressure measuring means 32 of the gas shut-off device 30 is substantially equal to the atmospheric pressure.
- the first predetermined pressure value to be compared with the gas pressure value in S6 is a value obtained by adding the predetermined pressure to the average atmospheric pressure, and can be set to a value sufficiently lower than the normal pressure fluctuation. Can be determined to have been removed from the gas supply pipe 31.
- the pressure measuring means 32 measures a normal gas pressure even if the gas is bypassed. Therefore, by setting the appropriate lower limit of the gas pressure as the second predetermined pressure value to be compared with the gas pressure value in S9, it is possible to determine that the gas cutoff device 30 once removed is installed again.
- the first predetermined time in which the gas pressure value to be compared in S7 is equal to or lower than the first predetermined pressure value is provided so as not to make an erroneous determination due to temporary gas pressure fluctuations, and the removal of the gas shut-off device 30 and the bypass operation It may be set shorter than the time required for re-installation.
- the second predetermined time in S10 is also provided to prevent erroneous determination, and is provided to reliably capture the return of gas pressure. Further, since this bypass operation needs to be restored to the original state when the meter reading is performed, the gas shut-off device 30 and the bypass pipe 42 are removed again and the gas shut-off device 30 is reinstalled before the meter reading.
- the predetermined number of times compared with the check counter in S13 may be at least twice, and the predetermined number may be increased for the purpose of preventing erroneous determination.
- FIG. 3 is a flowchart showing a process during a return operation of the gas cutoff device according to Embodiment 1 of the present invention.
- the control means 33 determines whether or not a return operation has been performed by an input from the return means 38 (S16), and if there is a return operation in S17, a monitoring function cutoff flag indicating that the shutdown has been performed by unauthorized acquisition monitoring of gas. If the monitoring function cutoff flag is 1, that is, if the gas pressure value is shut down at a predetermined pressure value or less, this process is skipped. If the monitoring function cutoff flag is 0, the cutoff means is determined in S18. Return to 39 and return from the shut-off state.
- FIG. 4 is a flowchart showing processing after the installation of the gas cutoff device according to Embodiment 2 of the present invention.
- the block diagram of the gas shut-off device is the same as that of FIG. 1, except that the control means 33 shown in FIG. That is, the control means 33 stores a program for executing the control flow from S19 to S34 shown in FIG.
- the control means 33 determines whether or not there has been a predetermined operation at the time of installation by the operator (S19). If there is no predetermined operation, the process proceeds to S23, and if there is a predetermined operation, illegal acquisition of gas is determined by the gas pressure value. It is determined whether or not the monitoring function valid flag to be monitored is 0 (S20). If it is not 0, the process proceeds to S23. If it is 0, the monitoring function valid flag is set to 1 in S21 and output to the external communication means 34 to communicate the installation completion information. (S22). In S23, it is determined whether or not the monitoring function valid flag is 1. If it is not 1, the process is terminated.
- the process proceeds to S28 if it is 1, and the process proceeds to S25 if it is not 1. In S25, it is determined whether or not the gas pressure value is equal to or lower than the first predetermined pressure value. If the gas pressure value is not lower than the first predetermined pressure value, the process is skipped. (S26) If it is not continued for the first predetermined time or longer, the process proceeds to S25, and if it is continued for the first predetermined time or longer, the pressure drop flag is set to 1 in S27.
- S28 it is determined whether or not the gas pressure value is equal to or higher than the second predetermined pressure value. If the gas pressure value is not equal to or higher than the second predetermined pressure value, the process is terminated. (S29) If not continued for the second predetermined time or longer, the process proceeds to S28, and if continued for the second predetermined time or longer, the pressure drop flag is set to 0 in S30, and the check counter is increased in S31.
- FIG. 5 is a flowchart showing processing after installation of the gas cutoff device according to Embodiment 3 of the present invention.
- the block diagram of the gas shut-off device is the same as that of FIG. 1, except that the control means 33 shown in FIG. That is, the control means 33 stores a program for executing the control flow from S35 to S51 shown in FIG.
- the control means 33 determines whether or not there has been a predetermined operation at the time of installation by the business operator (S35). If there is no predetermined operation, the process exits, and if there is a predetermined operation, the unauthorized acquisition of gas is detected by the gas pressure value. (S36), if it is not 0, the process proceeds to S39. If it is 0, the monitoring function valid flag is set to 1 in S37 and is output to the external communication means 34 to provide installation completion information. Communicate (S38). In S39, it is determined whether or not the monitoring function valid flag is 1. If it is not 1, the process is exited.
- S44 it is determined whether or not the gas pressure value is equal to or higher than the second predetermined pressure value. If the gas pressure value is not equal to or higher than the second predetermined pressure value, the process is terminated. (S45) If not continued for the second predetermined time or longer, the process proceeds to S44, and if continued for the second predetermined time or longer, the pressure drop flag is set to 0 in S46, and the check counter is increased in S47.
- FIG. 6 is a flowchart showing processing for returning from the shut-off state of the gas shut-off device according to Embodiment 4 of the present invention.
- the block diagram of the gas shut-off device is the same as that of FIG. 1, except that the control means 33 shown in FIG. That is, the control means 33 stores a program for executing the control flow from S52 to S57 shown in FIG.
- the control means 33 determines whether or not the monitoring function cutoff flag indicating that it has been shut off due to unauthorized gas acquisition monitoring is 1 (S52). If the monitoring function cutoff flag is 0, the process proceeds to S56 and the monitoring function cutoff is performed. If the flag is 1, it is determined in S53 whether or not a predetermined operation has been performed by the operator. If there is a predetermined operation, the monitoring function cutoff flag is set to 0 (S54), and the check counter is cleared in S55. In S56, it is determined whether or not a return operation has been performed based on an input from the return means 38. If there is a return operation, a return output is made to the shut-off means 39 to return the gas supply (S57).
- FIG. 7 is a flowchart showing processing of the monitoring function cutoff release request of the gas cutoff device in Embodiment 5 of the present invention.
- the block diagram of the gas shut-off device is the same as that of FIG. 1, except that the control means 33 shown in FIG. That is, the control means 33 stores a program for executing the control flow from S58 to S61 shown in FIG.
- the control means 33 determines whether or not the monitoring function cutoff flag indicating that the gas has been shut off by unauthorized acquisition monitoring of gas is 1 (S58). If the monitoring function cutoff flag is 1, the operator performs a predetermined operation in S59. If there is a predetermined operation, it is output to the external communication means 34 in S60 to communicate the monitoring function cutoff release request, and the external response waiting flag is set to 1 (S61).
- FIG. 8 is a flowchart showing processing for permitting release of the monitoring function cutoff of the gas cutoff device according to Embodiment 5 of the present invention.
- the block diagram of the gas shut-off device is the same as that of FIG. 1, except that the control means 33 shown in FIG. That is, the control means 33 stores a program for executing the control flow from S62 to S67 shown in FIG.
- the control means 33 determines whether or not the monitoring function cutoff flag indicating that the gas is shut off by unauthorized gas acquisition monitoring is 1 (S62). If the monitoring function cutoff flag is 1, the external response wait flag is set in S63. If the external response waiting flag is 1, it is determined in S64 whether or not there has been a release permission response by an input from the external communication means 34. If there is a release permission response in S64, the monitoring function cutoff flag is set to 0, the external response wait flag is set to 0 in S65 (S66), the check counter is cleared in S67, and the return operation can be returned from the cutoff state thereafter. It becomes. The return operation is the same as the flowchart shown in FIG.
- FIG. 9 is a flowchart showing processing after the installation of the gas cutoff device according to Embodiment 6 of the present invention.
- the block diagram of the gas shut-off device is the same as that of FIG. 1, except that the control means 33 shown in FIG. That is, the control means 33 stores a program for executing the control flow from S68 to S84 shown in FIG.
- the control means 33 determines whether or not an operator-specific card has been inserted at the time of installation by an operator based on input from the card processing means 37 (S68). If the operator card is inserted, it is determined whether the monitoring function valid flag for monitoring unauthorized acquisition of gas by the gas pressure value is 0 (S69). If not, the process proceeds to S72. In S70, the monitoring function valid flag is set to 1, and output to the external communication means 34 to communicate the installation completion information (S71). In S72, it is determined whether or not the monitoring function valid flag is 1. If it is not 1, the process is terminated. If it is 1, the state in which the gas pressure value is equal to or lower than the first predetermined pressure value has been continued for the first predetermined time or longer in S73.
- S74 it is determined whether the gas pressure value is equal to or lower than the first predetermined pressure value. If the gas pressure value is not lower than the first predetermined pressure value, the process is skipped. (S75) If not continued for the first predetermined time or longer, the process proceeds to S74, and if continued for the first predetermined time or longer, the flag indicating that the pressure has decreased is set to 1 in S76. In S77, it is determined whether or not the gas pressure value is equal to or higher than the second predetermined pressure value. If the gas pressure value is not equal to or higher than the second predetermined pressure value, the process is skipped.
- the provider-specific card at the time of installation determined in S68 will be described.
- As information stored in the operator-dedicated card inspection completion information at the time of installation of the gas shut-off device 30 is stored, and inserted into the card processing means 37 in the same manner as the prepaid card 41, whereby the card processing means 37 Information is output to the control means 33.
- the information stored in the card is inspected information at the site, so that after the gas pressure value described later is shut down below the specified pressure value, the operator It is good also as the card
- a function of clearing the check counter may be provided by being inserted into the processing means 37.
- the operator confirms that it is normal including piping during inspection at the time of installation, and simply and surely enables the function simply by inserting the operator-specific card.
- it is possible to grasp the occurrence of interruption due to pipe bypass work, etc., and to prevent unauthorized use of the gas due to illegal acquisition of the gas or theft of the gas cutoff device, and to ensure safety.
- FIG. 10 is a flowchart showing processing for returning from the shut-off state of the gas shut-off device according to Embodiment 7 of the present invention.
- the block diagram of the gas shut-off device is the same as that of FIG. 1, except that the control means 33 shown in FIG. That is, the control means 33 stores a program for executing the control flow from S85 to S90 shown in FIG.
- the control means 33 determines whether or not the monitoring function cutoff flag indicating that it has been shut off due to unauthorized gas acquisition monitoring is 1 (S85). If the monitoring function cutoff flag is 0, the process proceeds to S89 and the monitoring function cutoff is performed. If the flag is 1, it is determined in S86 whether or not an operator-specific card has been inserted by an input from the card processing means 37. If the operator-specific card has been inserted, the monitoring function cutoff flag is set to 0. (S87) The check counter is cleared in S88. In S89, it is determined whether or not a return operation has been performed based on an input from the return means 38. If there is a return operation, a return output is made to the shut-off means 39 to return the gas supply (S90).
- the carrier-specific card determined in S86 As information stored in the carrier-dedicated card, inspection completion information by the carrier after being shut off by unauthorized acquisition monitoring of gas is stored and inserted into the card processing means 37 in the same manner as the prepaid card 41. Information is output from the card processing means 37 to the control means 33. Moreover, although it is good also as an exclusive card for a return, it is good also as the card
- FIG. 11 is a flowchart showing processing of the monitoring function cutoff release request of the gas cutoff device according to Embodiment 8 of the present invention.
- the block diagram of the gas shut-off device is the same as that of FIG. 1, except that the control means 33 shown in FIG. That is, the control means 33 stores a program for executing the control flow from S91 to S94 shown in FIG.
- the control means 33 determines whether or not the monitoring function cutoff flag indicating that the gas has been shut off by unauthorized acquisition monitoring is 1 (S91). If the monitoring function cutoff flag is 1, the card processing means 37 determines in S92. , It is determined whether or not an operator-dedicated card has been inserted by the operator, and if an operator-dedicated card has been inserted, the monitoring function cutoff release request is communicated to the external communication means 34 in S93, and the external The response waiting flag is set to 1 (S94). Note that the monitoring function cutoff release permission processing of the gas cutoff device after setting the external response waiting flag to 1 is the same as FIG.
- the business operator can surely grasp the occurrence of interruption due to pipe bypass work, etc., and can prevent illegal use due to illegal acquisition of gas or theft of gas cutoff device, etc. .
- 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.
- the gas shut-off device can prevent illegal acquisition of gas by piping bypass work or illegal use by theft of the gas shut-off device, which cannot be prevented only by sealing the device. Since it is possible, it can be applied to a water meter.
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
- Feeding And Controlling Fuel (AREA)
- Alarm Systems (AREA)
- Regulation And Control Of Combustion (AREA)
- Burglar Alarm Systems (AREA)
- Storage Device Security (AREA)
Abstract
Description
図1は、本発明の実施の形態1におけるガス遮断装置のブロック図である。
図4は、本発明の実施の形態2におけるガス遮断装置の設置以降の処理を示すフローチャートである。実施の形態1における図1に示す制御手段33とプログラムのみが異なるだけで、ガス遮断装置のブロック図は図1と同一である。すなわち、制御手段33は図4に示すS19からS34の制御フローを実行するプログラムを格納したものである。
図5は、本発明の実施の形態3におけるガス遮断装置の設置以降の処理を示すフローチャートである。実施の形態1における図1に示す制御手段33とプログラムのみが異なるだけで、ガス遮断装置のブロック図は図1と同一である。すなわち、制御手段33は図5に示すS35からS51の制御フローを実行するプログラムを格納したものである。
図6は、本発明の実施の形態4におけるガス遮断装置の遮断状態からの復帰の処理を示すフローチャートである。実施の形態1における図1に示す制御手段33とプログラムのみが異なるだけで、ガス遮断装置のブロック図は図1と同一である。すなわち、制御手段33は図6に示すS52からS57の制御フローを実行するプログラムを格納したものである。
図7は、本発明の実施の形態5におけるガス遮断装置の監視機能遮断解除要求の処理を示すフローチャートである。実施の形態1における図1に示す制御手段33とプログラムのみが異なるだけで、ガス遮断装置のブロック図は図1と同一である。すなわち、制御手段33は図7に示すS58からS61の制御フローを実行するプログラムを格納したものである。
図9は、本発明の実施の形態6におけるガス遮断装置の設置以降の処理を示すフローチャートである。実施の形態1における図1に示す制御手段33とプログラムのみが異なるだけで、ガス遮断装置のブロック図は図1と同一である。すなわち、制御手段33は図9に示すS68からS84の制御フローを実行するプログラムを格納したものである。
なお、設置時の専用カードとしてもよいが、カードに格納する情報を現場での点検済情報とすることで、後述するガス圧力値が所定圧力値以下で遮断した以降に、事業者が現場での点検作業を完了し、カード処理手段37へ挿入する事業者専用カードと同一のカードとしてもよい。
図10は、本発明の実施の形態7におけるガス遮断装置の遮断状態からの復帰の処理を示すフローチャートである。実施の形態1における図1に示す制御手段33とプログラムのみが異なるだけで、ガス遮断装置のブロック図は図1と同一である。すなわち、制御手段33は図10に示すS85からS90の制御フローを実行するプログラムを格納したものである。
図11は、本発明の実施の形態8におけるガス遮断装置の監視機能遮断解除要求の処理を示すフローチャートである。実施の形態1における図1に示す制御手段33とプログラムのみが異なるだけで、ガス遮断装置のブロック図は図1と同一である。すなわち、制御手段33は図11に示すS91からS94の制御フローを実行するプログラムを格納したものである。
なお、外部応答待ちフラグを1にした以降のガス遮断装置の監視機能遮断解除許可の処理については図8と同一のため説明を省略する。
31 ガス供給管
32 圧力計測手段
33 制御手段
34 外部通信手段
35 流量計測手段
36 宅内通信手段
37 カード処理手段
38 復帰手段
39 遮断手段
40 宅内表示装置
41 プリペイド式カード
42 バイパス管
Claims (9)
- ガス供給管に接続され、ガスの供給や遮断を行う遮断手段と、前記遮断手段を制御する制御手段と、ガスの流量を計測する流量計測手段と、ガスの圧力を計測する圧力計測手段と、前記遮断手段によるガス遮断状態をガスが通る復帰状態にする復帰手段と、外部との通信が可能な外部通信手段とを備え、前記制御手段は、設置時に事業者等が行う所定操作以降に前記圧力計測手段からの出力により、ガス圧力値が第1所定圧力値以下になり第1所定時間以上継続した後に、ガス圧力値が第2所定圧力値以上になり第2所定時間以上継続する事象が所定回数出現すると前記遮断手段に出力し、ガスを遮断するとともに、前記復帰手段による復帰を不可とすることを特徴とするガス遮断装置。
- 制御手段は、設置時に事業者等が行う所定操作がなされたときに、前記外部通信手段に出力して外部に通信することを特徴とする請求項1記載のガス遮断装置。
- 制御手段は、設置時に事業者等が行う所定操作以降に前記圧力計測手段からの出力により、ガス圧力値が第1所定圧力値以下になり第1所定時間以上継続した後に、ガス圧力値が第2所定圧力値以上になり第2所定時間以上継続する事象が所定回数出現すると、前記遮断手段に出力し、ガスを遮断するとともに、前記外部通信手段に出力して外部に通信することを特徴とする請求項1または2記載のガス遮断装置。
- 制御手段は、前記圧力計測手段からの出力により、ガス圧力値が第1所定圧力値以下になり第1所定時間以上継続した後に、ガス圧力値が第2所定圧力値以上になり第2所定時間以上継続する事象が所定回数出現すると、前記遮断手段に出力し、ガスを遮断した以降に、事業者による所定操作により復帰可状態とすることを特徴とする請求項1から請求項3のいずれか1項に記載のガス遮断装置。
- 制御手段は、前記圧力計測手段からの出力により、ガス圧力値が第1所定圧力値以下になり第1所定時間以上継続した後に、ガス圧力値が第2所定圧力値以上になり第2所定時間以上継続する事象が所定回数出現すると、前記遮断手段に出力し、ガスを遮断した以降に、事業者による所定操作により前記外部通信手段に出力して外部に通信し、外部から応答の通信を入力することにより復帰可状態とすることを特徴とする請求項1から請求項3のいずれか1項に記載のガス遮断装置。
- プリペイド式カードの読み書きを行うカード処理手段を備え、制御手段は、設置時に事業者等が行う事業者専用カード挿入による前記カード処理手段からの出力以降に、前記圧力計測手段からの出力により、ガス圧力値が第1所定圧力値以下になり第1所定時間以上継続した後に、ガス圧力値が第2所定圧力値以上になり第2所定時間以上継続する事象が所定回数出現すると、前記遮断手段に出力し、ガスを遮断するとともに、前記復帰手段による復帰を不可とすることを特徴とする請求項1から請求項3のいずれか1項に記載のガス遮断装置。
- 制御手段は、前記圧力計測手段からの出力により、ガス圧力値が第1所定圧力値以下になり第1所定時間以上継続した後に、ガス圧力値が第2所定圧力値以上になり第2所定時間以上継続する事象が所定回数出現すると、前記遮断手段に出力し、ガスを遮断した以降に、事業者による事業者専用カード挿入による前記カード処理手段からの出力により復帰可状態とすることを特徴とする請求項6記載のガス遮断装置。
- 制御手段は、前記圧力計測手段からの出力により、ガス圧力値が第1所定圧力値以下になり第1所定時間以上継続した後に、ガス圧力値が第2所定圧力値以上になり第2所定時間以上継続する事象が所定回数出現すると、前記遮断手段に出力し、ガスを遮断した以降に、事業者による事業者専用カード挿入による前記カード処理手段からの出力により前記外部通信手段に出力して外部に通信し、外部から応答の通信を入力することにより復帰可状態とすることを特徴とする請求項6記載のガス遮断装置。
- 請求項1から請求項8のいずれか1項に記載のガス遮断装置の全てもしくは一部として、コンピュータを機能させるプログラム。
Priority Applications (4)
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EP10733387.4A EP2383552B1 (en) | 2009-01-26 | 2010-01-25 | Gas interrupting device |
CN2010800139033A CN102365531B (zh) | 2009-01-26 | 2010-01-25 | 燃气切断装置 |
JP2010547449A JP5590678B2 (ja) | 2009-01-26 | 2010-01-25 | ガス遮断装置 |
US13/146,300 US8973602B2 (en) | 2009-01-26 | 2010-01-25 | Gas shutoff device |
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JP2009014014 | 2009-01-26 | ||
JP2009-014014 | 2009-01-26 |
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PCT/JP2010/000407 WO2010084780A1 (ja) | 2009-01-26 | 2010-01-25 | ガス遮断装置 |
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US (1) | US8973602B2 (ja) |
EP (1) | EP2383552B1 (ja) |
JP (1) | JP5590678B2 (ja) |
CN (1) | CN102365531B (ja) |
WO (1) | WO2010084780A1 (ja) |
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JP2020045932A (ja) * | 2018-09-18 | 2020-03-26 | パナソニックIpマネジメント株式会社 | ガス遮断装置 |
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CN101960267B (zh) * | 2008-03-07 | 2012-07-04 | 松下电器产业株式会社 | 气量计及气量计系统 |
US11065628B2 (en) * | 2018-07-09 | 2021-07-20 | Kennametal Inc. | Centrifuge tile assembly |
JP7065265B2 (ja) * | 2018-09-14 | 2022-05-12 | パナソニックIpマネジメント株式会社 | ガスメータ |
JP7390544B2 (ja) * | 2019-05-17 | 2023-12-04 | パナソニックIpマネジメント株式会社 | ガス保安装置 |
IT202000009103A1 (it) * | 2020-04-27 | 2021-10-27 | Pietro Fiorentini Spa | Apparecchio per la consegna di gas ad un'utenza |
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Also Published As
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US20120000551A1 (en) | 2012-01-05 |
EP2383552A1 (en) | 2011-11-02 |
JPWO2010084780A1 (ja) | 2012-07-19 |
JP5590678B2 (ja) | 2014-09-17 |
EP2383552A4 (en) | 2014-05-21 |
CN102365531A (zh) | 2012-02-29 |
US8973602B2 (en) | 2015-03-10 |
CN102365531B (zh) | 2013-04-24 |
EP2383552B1 (en) | 2020-12-23 |
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