JP4175068B2 - Gas shut-off device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a gas shut-off device that measures and monitors the amount of gas used and the state of use of a gas appliance that uses city gas, LP gas, or the like, and ensures the accuracy of integrating the amount of gas used for each flow rate category.
[0002]
[Prior art]
A conventional gas shut-off device of this type has a configuration shown in FIG. 6 as disclosed in Patent Document 1, for example.
[0003]
In FIG. 6, reference numeral 1 denotes a gas meter, which is provided in the gas supply line. Reference numeral 2 denotes a flow rate detection unit that detects the flow rate of gas flowing through the gas supply pipe. Reference numeral 3 denotes a flow rate calculation unit that calculates a gas flow rate based on the detection output of the flow rate detection unit 2. Reference numeral 4 denotes a normal integrated value calculation unit that integrates the gas flow rate calculated by the flow rate calculation unit 3. 5 is a normal integrated value storage unit for storing the calculated gas flow integrated value. Reference numeral 6 denotes a gas flow rate calculation output unit of another gas meter, which is a plurality of second units that integrate the gas flow rate calculated by the flow rate calculation unit 3 of the gas meter 1 and the flow rate calculation output 6 of another gas meter for each predetermined section. And a plurality of second integrated value storage units for storing the calculated gas flow rate integrated value for each section. An integrated value calculation unit for each time zone that integrates the gas flow rate calculated by the flow rate calculation unit for each predetermined time zone, and an integrated value storage unit for each time zone that stores the calculated integrated value for each time zone; An integrated value calculation unit 9 for each flow rate that integrates for each predetermined flow rate and for each input port, and an integrated value storage unit 10 for each flow rate that stores an integrated value for each flow rate that stores the calculated integrated value for each flow rate; There are an excess amount integrated value calculation unit 11 that integrates an excess gas amount exceeding a predetermined set gas amount and an excess amount integration value storage unit 12 that stores the calculated excess amount integrated value. 13, 14, 15, and 16 are display units for displaying each integrated value. 17 is a charge calculation unit, 18 is a charge display unit, and the integrated amount and each charge stored in each storage unit 5, 8, 10, 12 The gas charge is calculated from the unit price and displayed on the charge display unit 18.
[0004]
Next, the operation of the configuration of the conventional example will be described. In the integrated value calculation unit 7 by time zone, for example, Saturday and Sunday, Saturday and Sunday midnight time zone including the time zone from 22:00 to 7:00 on weekdays, and other weekday time zones are divided into two time zone classifications. The integrated value of the amount of gas used is calculated and stored in the time-based integrated value storage means 8. Next, the flow rate integrated value calculation unit 9 integrates and stores the flow rate calculation output 6 of another gas meter 6A attached to the gas appliance to be used as a discounted usage fee, and calculates a discounted fee. When the gas appliances used at a consumer's home are a gas stove, a gas heat pump (GHP), and a water heater, the flow rate classification when used is determined by the combination of the gas appliances used at each consumer's home. The usage amount for each gas appliance according to the time zone can be grasped according to the usage time. On the other hand, the excess amount integrated value calculation unit 11 integrates only the excess gas amount exceeding the preset gas amount set value. For this excess gas amount, a cheaper charge can be applied compared to the normal charge.
[0005]
[Patent Document 1]
JP 2000-205923 A
[0006]
[Problems to be solved by the invention]
However, in the above conventional configuration, the flow rate calculation unit calculates from the signal of the flow rate detection unit, and the flow value flowing at the calculation output is determined and integrated. For example, the flow rate from the start of flow is unknown and integration is performed. There is a problem in accuracy, and it takes a lot of time to calculate the flow rate. As a result, the gas meter itself is driven by the battery power supply, so there is a problem that a large amount of current is consumed. It is not disclosed how to ensure the accuracy of meter reading in the calculation unit, and it can be integrated for each time zone by the time zone integration storage unit, but it can be added to that time zone other than the predetermined time zone Even if a large amount of gas was used in a corresponding time, there was a problem that the gas customer had no merit in terms of charge.
[0007]
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a gas shut-off device with high measurement accuracy of gas usage.
[0008]
[Means for Solving the Problems]
In order to solve this problem, according to the present invention, a pulse signal is output when the flow rate detection means detects a gas flow rate, the period measurement means performs periodic measurement up to the next flow rate signal, and then the integration starts from the calendar means. It is determined whether the day has been reached, the cycle determination unit determines whether the flow rate is equal to or greater than the predetermined flow rate based on the flow rate signal period measured by the cycle measurement unit, The usage amount is integrated in the flow rate integration means.
[0009]
As a result, the flow rate detection means outputs a flow rate signal in the form of a pulse signal or the like in proportion to the metering operation of the gas flow rate metering unit, and the pulse signal cycle is inversely proportional to the flow rate of the gas appliance. The flow rate can be detected accurately and accurately by periodic measurement, and if the period when the gas demand is highest, such as New Year, is set in advance by the date setting means, the amount of gas used in that period is independent of the number of gas appliances. If the flow rate exceeds the specified value, the meter reading is integrated for each pulse signal. Therefore, the meter reading can be performed reliably even if the gas is used for a predetermined time other than specified by the day of the week or the time zone, and the measurement accuracy is improved. .
[0010]
DETAILED DESCRIPTION OF THE INVENTION
In order to achieve the above-mentioned object, the present invention achieves the above-described object, and a flow rate detecting means for outputting a pulse signal when a gas flow rate is detected, and when the flow rate signal is outputted from the flow rate detecting means, measurement is started and a period measurement until the next flow rate signal is performed. A cycle measuring unit, a cycle setting unit that sets a plurality of cycles to be compared with the output value of the cycle measuring unit, a cycle determining unit that determines whether the flow rate signal cycle measured by the cycle measuring unit is equal to or less than a set cycle, and a month A calendar means for measuring the date; a setting month / day determination means for determining whether or not a calendar start date is reached from the calendar means; It comprises a flow rate integration means for integrating the predetermined date and the flow rate after determination.
[0011]
When the gas consumer starts using the gas appliance, the flow rate detection means starts to output a flow rate signal as a pulse signal, but its cycle is inversely proportional to the flow rate, and the flow rate signal detection starts to measure the flow rate signal cycle. Measures the period up to the detection of the flow rate pulse, determines whether the flow rate is greater than or equal to the predetermined flow rate. If the flow rate is greater than or equal to the predetermined flow rate, starts measuring the gas usage time with the timekeeping means. Accumulation can be started more reliably than the start of flow pulse output, and the cycle is accurately measured and meter reading is performed, so it is extremely accurate and uses a large amount of gas appliances and gas according to the actual usage of gas consumers. If the period is set by the month / day setting means, it will start counting when the gas reaches the specified date and the gas is used. Gold system can set gas operators, requires extremely convenience is good, and meter reading process less mounting number of small battery power supply power consumption and improve the measurement accuracy since it flow volume accumulation at high speed.
[0012]
Further, in order to achieve the above object, the present invention achieves the above-described object, and a flow rate detecting means for outputting a pulse signal when a gas flow rate is detected, and a measurement is started when the flow rate signal is output from the flow rate detecting means, and a period measurement until the next flow rate signal is performed. A cycle measuring unit for performing, a cycle setting unit for setting a plurality of cycles to be compared with an output value of the cycle measuring unit, a cycle determining unit for determining whether a flow rate signal cycle measured by the cycle measuring unit is a set cycle or less, Calendar means for measuring the date and time, setting month / day determination means for determining whether or not the calendar start date has been reached from the calendar means, and when the period determination means determines that the predetermined date or less and the setting month / day determination means The flow rate integrating means for integrating the flow after determination and the predetermined date and time, and the month / day setting canceling means for automatically resetting the date setting when a predetermined period has elapsed.
[0013]
When the gas consumer starts using the gas appliance, the flow rate detection means starts outputting a flow rate signal as a pulse signal. The period until the next flow rate pulse detection is measured, and whether the flow rate is greater than a predetermined flow rate is determined. If the determined flow rate is equal to or greater than the predetermined flow rate, the measured gas usage is integrated into the flow rate integration unit when the signal from the calendar unit matches the set date on the month / day setting unit. It is extremely accurate because the cycle is accurately measured and metered, and if the period for using a large amount of gas equipment and gas is set by the date setting means according to the actual usage of the gas consumer, When the gas is used and the gas starts to be used, the gas company can set a gas fee system that is beneficial to the gas customer as a large-scale gas usage fee for a specific period. When the consumption trend fluctuates, the calendar means automatically resets the setting value of the month and day setting means after a predetermined period, for example, one year, and forgets to cancel the past setting when another month and day are set, It is extremely convenient and easy to use without being mistakenly accumulated.
[0014]
Further, in order to achieve the above object, the present invention achieves the above-described object, and a flow rate detecting means for outputting a pulse signal when a gas flow rate is detected, and a measurement is started when the flow rate signal is output from the flow rate detecting means, and a period measurement until the next flow rate signal is performed. A cycle measuring unit for performing, a cycle setting unit for setting a plurality of cycles to be compared with an output value of the cycle measuring unit, a cycle determining unit for determining whether a flow rate signal cycle measured by the cycle measuring unit is a set cycle or less, Calendar means for measuring the date and time, setting month / day determination means for determining whether or not the calendar start date has been reached from the calendar means, and when the period determination means determines that the predetermined date or less and the setting month / day determination means The flow rate integration means for integrating the flow rate after the predetermined date and time, the month / day setting release means for automatically resetting the month / day setting when the predetermined period elapses, and the set value automatically reset when the predetermined period elapses. Consisting of one of the switching means or the automatic continuation setting to.
[0015]
When the gas consumer starts using the gas appliance, the flow rate detection means starts outputting a flow rate signal as a pulse signal. The period until the next flow rate pulse detection is measured, and whether the flow rate is greater than a predetermined flow rate is determined. If the determined flow rate is equal to or greater than the predetermined flow rate, the measured gas usage is integrated into the flow rate integration unit when the signal from the calendar unit matches the set date on the month / day setting unit. Since the cycle is accurately measured and metered, the accuracy is extremely high. On the other hand, the actual usage of gas consumers is very different and the consumption trend is stable throughout the year, and when it is used in large quantities. Since the date and time set in the month and day setting means by the switching means can be selected to automatically reset or continue automatically after a predetermined period of time by a signal from the calendar means. Gas operators extremely convenience and ease of use is good can be set in accordance with the gas customers every use trends grasped.
[0016]
Further, in order to achieve the above object, the present invention achieves the above-described object, and a flow rate detecting means for outputting a pulse signal when a gas flow rate is detected, and a measurement is started when the flow rate signal is output from the flow rate detecting means, and a period measurement until the next flow rate signal is performed. A cycle measuring unit for performing, a cycle setting unit for setting a plurality of cycles to be compared with an output value of the cycle measuring unit, a cycle determining unit for determining whether a flow rate signal cycle measured by the cycle measuring unit is a set cycle or less, A calendar means for measuring the date and time, a leap month / day correction means for performing a leap year determination based on a setting value of the month / day setting means and automatically correcting a setting start month / day, and a date on which the accumulation is started from the calendar means And a flow rate integration unit that integrates the predetermined month and day and the post-determination flow rate when it is determined that the cycle determination unit determines that the predetermined month or less.
[0017]
When the gas consumer starts using the gas appliance, the flow rate detection means starts outputting a flow rate signal as a pulse signal. The period until the next flow rate pulse detection is measured, and whether the flow rate is greater than a predetermined flow rate is determined. If the determined flow rate is greater than or equal to the predetermined flow rate, and if the set date of the integration start is reached by the date setting means, the gas usage is integrated into the flow integration means, but the integration can be started more reliably than the flow pulse output start, and In order to prevent the start of accumulating only once every four years if it is set to the last day of the leap month of the leap year due to the actual usage of the gas customer, as the meter accurately measures the period and performs meter reading. In non-leap years, the set month and day are corrected on the previous day or the next day. Certain gas rate system can set gas operators, requires only a very good usability and meter reading process less mounting number of flow volume accumulation less battery power consumption is improved measurement accuracy because it fast.
[0018]
Further, in order to achieve the above object, the present invention achieves the above-described object, and a flow rate detecting means for outputting a pulse signal when a gas flow rate is detected, and a measurement is started when the flow rate signal is output from the flow rate detecting means, and a period measurement until the next flow rate signal is performed. A cycle measuring unit for performing, a cycle setting unit for setting a plurality of cycles to be compared with an output value of the cycle measuring unit, a cycle determining unit for determining whether a flow rate signal cycle measured by the cycle measuring unit is a set cycle or less, A calendar means for measuring the date of the month, a date setting means for setting the month and date for starting the integration of the flow rate detected by the flow rate detection means, a day setting means for setting the day of the week for starting the integration, and the first calendar means; When the set month and day overlap, the integration determination means for determining the start of integration with priority on the set month and day, when the period determination means determines that it is less than or equal to the predetermined time, and when the integration determination means determines that it is the predetermined month and date Comprising a flow integrator for integrating the amount.
[0020]
And since it is a program, a part or all of the interruption | blocking apparatus of this invention can be easily implement | achieved using a microcomputer etc. Also, program distribution and installation can be simplified by recording on a recording medium or distributing a program using a communication line.
[0021]
【Example】
Hereinafter, first, second, third, fourth, fifth and sixth embodiments of the present invention will be described with reference to FIGS. 1, 2, 3, 4, and 5. FIG. 1, 2, 3, 4, and 5, the same reference numerals are given to components having the same functions as those in FIG. 6.
[0022]
(Example 1)
FIG. 1 shows a gas shut-off device according to a first embodiment of the present invention. Reference numeral 19 denotes a flow rate detecting means, and for example, a pulse signal or a voltage is turned on / off in proportion to the flow rate every time a measuring unit (not shown) measures a gas amount. Output a signal. Reference numeral 20 denotes a period measuring means for measuring a period from an ON signal such as a pulse signal or a voltage signal output from the flow rate detecting means 19 to an ON signal (or an off signal) of a flow rate pulse signal or a voltage signal output next. . Reference numeral 21 denotes a period setting means, which can set a period value to be compared with the period signal output value measured by the period measuring means 20 in a plurality of stages by a communication means (not shown). Since the cycle of the flow rate pulse signal decreases in inverse proportion to the measurement speed of the measuring unit, that is, the flow rate, the cycle set by the cycle setting unit 21 sets the flow rate value. Reference numeral 22 denotes a period determining unit that compares the flow rate signal period measured by the period measuring unit 20 with the period value converted to the flow rate value set by the period setting unit 21 to determine whether the flow rate is within a predetermined flow range. A calendar means 23 measures the date. 24 is a month / day setting means for setting the month / day and period during which the gas consumer consumes a large amount of gas, such as the New Year or the Bon Festival period. Reference numeral 25 denotes set month / day determination means, which compares the calendar means 23 with the month / day setting means 24 to determine whether a predetermined month / day has been reached. Reference numeral 26 denotes a flow rate conversion means, which converts the flow rate from the obtained flow rate signal period. 27 is a flow rate integrating means, and when the set date determining means 25 determines that the gas appliance has been used for a predetermined time or more, the detected flow rate is integrated. 28 is a display means for displaying each integrated value, total flow integrated value, etc. of the flow rate integrating means 27, for example, an LCD element or the like, and has a communication function (not shown) You can check the accumulated contents from the security center of the gas company. 29 is an abnormality determination means, which determines the usage status of the gas appliance of the gas consumer from the flow rate detection means 19, and there is no abnormality such as a large amount of gas leakage due to disconnection of the gas hose for connection with the gas appliance, or Monitor gas appliances for abnormal long-term use. 30 is a shut-off means, and when the abnormal determination means 29 detects abnormal use of the gas appliance, a shut-off signal is output.
[0023]
Next, the operation of the above configuration will be described. The gas shut-off device monitors the gas appliance usage state of the gas consumer and integrates the gas usage of the gas appliance. Gas appliances owned by gas consumers include not only gas tables and gas stoves, but also a plurality of gas water heaters, and a large amount of gas using GHP or the like for air conditioning. In order to promote gas demand, especially when gas usage increases compared to other periods, when gas appliances are used for a long time, or when a large amount of gas is used as a result, gas usage is divided from the period when only a small amount is used. Accumulate the flow rate and change the collection contents of the gas usage fee according to a separate fee system, grasp the actual gas usage for each gas customer, formulate an appropriate delivery plan for the LP gas cylinder container, grasp the actual usage situation of the gas customer, etc. It is necessary to make management easier.
[0024]
When a gas appliance is used, the metering unit of the gas shut-off device outputs the amount of gas used for each unit metering volume from the flow rate detection means 19 as a pulse signal or a voltage on / off signal. The period measuring means 20 starts time measurement from the first pulse signal that starts using the gas appliance, measures the period until the next pulse signal output by the flow rate detecting means 19, and outputs the measured period to the period determining means 22. The cycle starts again from the pulse signal that comes with it. The period setting unit 21 sets a period value to be compared with the period measured by the period measuring unit 20.
[0025]
The pulse period detected and output by the normal flow rate detection means 19 decreases as the flow rate increases in proportion to the gas usage flow rate of the gas appliance, and conversely, if a gas appliance with low gas consumption is used, the gas amount is small. The cycle becomes longer. If you want to integrate the gas flow integrated value when using a large amount of gas with a gas water heater or GHP and the gas flow integrated value when using a small amount of gas separately, assume the gas equipment to be used for the period setting means 22 Set the boundary flow period value. This set value can be set in a plurality of stages by communication means or the like. When the gas appliance is used, the cycle starts from the first flow rate pulse signal. When the next flow rate pulse signal that is measured by unit measurement is detected, the measurement cycle value is output immediately and the next flow rate is measured. At the same time, the period determining means 22 compares the period value set by the period setting means 21 and determines whether or not it is equal to or greater than a predetermined flow rate.
[0026]
The calendar means 23 measures the time on Monday and Sunday. The date setting unit 24 sets a time when the demand amount of gas use by the gas appliance increases, a start date, an end date, or a certain period value by means of communication or the like. When a flow rate measurement value equal to or higher than a predetermined flow rate is input from the cycle determination unit 22 to the set month / day determination unit 25, the calendar unit 23 and the month / day setting unit 24 are compared to determine whether the predetermined month / day has been reached, When the predetermined date is reached, the flow rate conversion means 26 converts the flow rate from the unit measurement volume, and integrates the flow rate integration means 27 as the gas usage amount for a specific period. No accumulation is performed when the flow rate is less than the predetermined flow rate or when a certain period of time has elapsed since the predetermined date. For each gas appliance held by the consumer, the actual usage of the gas appliance and the amount of gas used according to the lifestyle pattern are integrated.
[0027]
The unit volume of the measuring section of the gas shut-off device is determined in advance, and the flow rate value of the flow rate pulse output when measuring the gas per unit volume has the same weight as the unit measuring volume of the measuring section.
[0028]
The flow rate conversion means 26 integrates the flow rate integration means 24 instead of the unit measurement volume every time one flow rate pulse is measured. A unit volume per pulse is previously set in the flow rate conversion means 23 by a communication means (not shown) or the like. After that, it is only necessary to replace every pulse measurement, and since it is not necessary to calculate the flow rate per unit time, that is, the instantaneous flow rate, an extremely simple and simple configuration is sufficient. Further, the flow integrated value measured by the flow integrating means 27, the total flow integrated value, etc. are output to the notifying means 28 and displayed on the LCD element or the like. Furthermore, it is possible to confirm and investigate the flow rate accumulation contents from a remote location through a telephone line to the gas supply company.
[0029]
On the other hand, the use of the gas appliance is monitored by the abnormality determination unit 29 from the flow rate pulse signal detected by the flow rate detection unit 19. If a rubber hose connected to a gas stove is accidentally removed, a large amount of gas flows, that is, a large amount of flow rate pulses are output. When detected, the shut-off means 27 is activated to stop the gas supply to the gas appliance.
[0030]
When the gas appliance is started to be used in the gas shut-off device in this way, the start of use is detected by the flow rate pulse signal output from the flow rate detection means 19, and thereafter the gas use is measured and monitored for the flow rate pulse cycle. While determining whether or not the predetermined flow rate is abnormal, it is determined whether or not the predetermined flow rate is greater than the cycle set by the cycle setting unit 21, and the calendar unit 23 and the month and day setting unit 24 determine whether or not the set month and day. When it reaches the limit, it counts the amount of gas used by the appliance, and separates the amount of gas used by the customer during the specified period, such as the New Year and the Bon Festival, from the gas used outside the specified period. Since the gas flow rate is integrated, the gas company can give the consumer measures such as the merits of charges rather than the amount of gas used. In addition, the flow rate can be integrated with extremely high accuracy, and there is no cumulative error since the integration is performed from the start of use of the gas appliance compared to the case of measuring from the average flow rate obtained from the flow rate calculation at regular intervals. Since the flow rate is not calculated by such means, the time required for integration can be shortened in a very short time, so in the case of a battery power supply, etc., the current consumption can be reduced, the reliability of the battery power supply life, etc. Usability is improved.
[0031]
(Example 2)
FIG. 2 shows a gas shut-off device according to a second embodiment of the present invention. In FIG. 2, components having the same functions as those in FIGS. 1, 3, 4, 5, and 6 are assigned the same reference numerals and description thereof is omitted.
[0032]
FIG. 2 shows a gas shut-off device according to a second embodiment of the present invention. 31 is a month / day setting canceling means. When it is determined by a signal from the calendar means 23 that a predetermined period, for example, one year has passed, The specific period of the gas consumer set in the means 24 by means such as communication is canceled.
[0033]
Next, the operation of the above configuration will be described. Gas appliances owned by gas consumers include not only gas tables and gas stoves, but also a plurality of gas water heaters, and a large amount of gas using GHP or the like for air conditioning. In order to promote gas demand, especially when gas usage increases compared to other periods, when gas appliances are used for a long time, or when a large amount of gas is used as a result, gas usage is divided from the period when only a small amount is used. Accumulate the flow rate and change the collection contents of the gas usage fee according to a separate fee system, grasp the actual gas usage for each gas customer, formulate an appropriate delivery plan for the LP gas cylinder container, grasp the actual usage situation of the gas customer, etc. It is necessary to make management easier.
[0034]
When a gas appliance is used, the metering unit of the gas shut-off device outputs the amount of gas used for each unit metering volume from the flow rate detection means 19 as a pulse signal or the like. The period measuring means 20 starts time measurement from the first pulse signal that starts using the gas appliance, measures the period until the next pulse signal output by the flow rate detecting means 19, and outputs the measured period to the period determining means 22. The cycle starts again from the pulse signal that comes with it. The period setting unit 21 sets a period value to be compared with the period measured by the period measuring unit 20. The pulse period detected and output by the normal flow rate detection means 19 decreases as the flow rate increases in proportion to the gas usage flow rate of the gas appliance, and conversely, if a gas appliance with low gas consumption is used, the gas amount is small. The cycle becomes longer. If you want to integrate the gas flow integrated value when using a large amount of gas with a gas water heater or GHP and the gas flow integrated value when using a small amount of gas separately, assume the gas equipment to be used for the period setting means 22 Set the boundary flow period value. This set value can be set in a plurality of stages by communication means or the like. When the gas appliance is used, the cycle starts from the first flow rate pulse signal. When the next flow rate pulse signal that is measured by unit measurement is detected, the measurement cycle value is output immediately and the next flow rate is measured. At the same time, the period determining means 22 compares the period value set by the period setting means 21 and determines whether or not it is equal to or greater than a predetermined flow rate.
[0035]
The calendar means 23 measures the time on Monday and Sunday. The month / day setting cancellation unit 31 outputs a setting cancellation signal to the month / day setting unit 24 when a predetermined period, for example, one year has elapsed, from the calendar unit 23. Thereafter, the date, the start date, the end date, or a fixed period value is set in the date setting means 24 by communication or the like. When a flow rate measurement value equal to or higher than a predetermined flow rate is input from the cycle determination unit 22 to the set month / day determination unit 25, the calendar unit 23 and the month / day setting unit 24 are compared to determine whether the predetermined month / day has been reached, When the predetermined date is reached, the flow rate conversion means 26 converts the flow rate from the unit measurement volume, and integrates the flow rate integration means 27 as the gas usage amount for a specific period. No accumulation is performed when the flow rate is less than the predetermined flow rate or when a certain period of time has elapsed since the predetermined date. For each gas appliance held by the consumer, the actual usage of the gas appliance and the amount of gas used according to the lifestyle pattern are integrated.
[0036]
The unit volume of the measuring section of the gas shut-off device is determined in advance, and the flow rate value of the flow rate pulse output when measuring the gas per unit volume has the same weight as the unit measuring volume of the measuring section. The flow rate conversion means 26 integrates the flow rate integration means 24 instead of the unit measurement volume every time one flow rate pulse is measured. A unit volume per pulse is previously set in the flow rate conversion means 23 by a communication means (not shown) or the like. After that, it is only necessary to replace every pulse measurement, and since it is not necessary to calculate the flow rate per unit time, that is, the instantaneous flow rate, an extremely simple and simple configuration is sufficient. Further, the flow integrated value measured by the flow integrating means 27, the total flow integrated value, etc. are output to the notifying means 28 and displayed on the LCD element or the like. Furthermore, it is possible to confirm and investigate the flow rate accumulation contents from a remote location through a telephone line to the gas supply company.
[0037]
When the gas appliance is started to be used in the gas shut-off device in this way, the start of use is detected by the flow rate pulse signal output from the flow rate detection means 19, and thereafter the gas use is measured and monitored for the flow rate pulse cycle. While determining whether or not the predetermined flow rate is abnormal, it is determined whether or not the predetermined flow rate is greater than the cycle set by the cycle setting unit 21, and the calendar unit 23 and the month and day setting unit 24 determine whether or not the set month and day. When it reaches the limit, it counts the amount of gas used by the appliance, and separates the amount of gas used by the customer during the specified period, such as the New Year and the Bon Festival, from the gas used outside the specified period. Since the gas flow rate is integrated, the gas company can give the consumer measures such as the merits of charges rather than the amount of gas used. It is, or can flow volume accumulation in extremely high precision. However, the demand trend of gas consumers fluctuates, such as the occurrence of Keio. Even if a gas company sets a new date, if it forgets to cancel the past setting date, it is almost the same as the period when demand is low, and there is no merit for both the operator and the consumer, rather the system is not easy to use. However, since it is automatically reset when a predetermined period elapses, convenience and usability are improved and reliability is improved.
[0038]
(Example 3)
FIG. 3 shows a gas shut-off device according to a third embodiment of the present invention. 3, components having the same functions as those in FIGS. 1, 2, 4, 5, and 6 are assigned the same reference numerals, and descriptions thereof are omitted.
[0039]
FIG. 3 shows a gas shut-off device according to a third embodiment of the present invention. Reference numeral 32 denotes a switching means, which is used to automatically reset the set month or day by communication means (not shown) such as a setting device or to continue automatically. Can be selected. The business operator determines whether or not the gas gas trend of each gas consumer is likely to fluctuate throughout the year and selects it.
[0040]
Next, the operation of the above configuration will be described. Gas appliances owned by gas consumers include not only gas tables and gas stoves, but also a plurality of gas water heaters, and a large amount of gas using GHP or the like for air conditioning. In order to promote gas demand, especially when gas usage increases compared to other periods, when gas appliances are used for a long time, or when a large amount of gas is used as a result, gas usage is divided from the period when only a small amount is used. The flow rate is integrated, the contents of gas usage charges are collected according to a separate charge system, the actual gas usage for each gas consumer is grasped, and an appropriate delivery plan for LP gas cylinders is created, and the actual usage of gas consumers It is necessary to grasp the fluctuation and make management easier.
[0041]
When a gas appliance is used, the metering unit of the gas shut-off device outputs the amount of gas used for each unit metering volume from the flow rate detection means 19 as a pulse signal or the like. The period measuring means 20 starts time measurement from the first pulse signal that starts using the gas appliance, measures the period until the next pulse signal output by the flow rate detecting means 19, and outputs the measured period to the period determining means 22. The cycle starts again from the pulse signal that comes with it. The period setting unit 21 sets a period value to be compared with the period measured by the period measuring unit 20. The pulse period detected and output by the normal flow rate detection means 19 decreases as the flow rate increases in proportion to the gas usage flow rate of the gas appliance, and conversely, if a gas appliance with low gas consumption is used, the gas amount is small. The cycle becomes longer. If you want to integrate the gas flow integrated value when using a large amount of gas with a gas water heater or GHP and the gas flow integrated value when using a small amount of gas separately, assume the gas equipment to be used for the period setting means 22 Set the boundary flow period value. This set value can be set in a plurality of stages by communication means or the like.
[0042]
When the gas appliance is used, the cycle starts from the first flow rate pulse signal. When the next flow rate pulse signal that is measured by unit measurement is detected, the measurement cycle value is output immediately and the next flow rate is measured. At the same time, the period determining means 22 compares the period value set by the period setting means 21 and determines whether or not it is equal to or greater than a predetermined flow rate.
[0043]
The calendar means 23 measures the time on Monday and Sunday. The gas company selects whether to input the signal of the calendar unit 23 to the month / day setting canceling unit 31 or directly to the month / day setting unit 24 via the switching unit 32 according to the gas usage trend of the gas consumer. For customers with large fluctuations in demand throughout the year, the month / day setting canceling means 31 side is selected, and for customers with small fluctuations in demand, the month / day setting means 24 side is directly selected.
[0044]
This eliminates the trouble of the operator re-setting each customer who has almost no fluctuation in demand. Furthermore, for the customer who frequently changes the demand, the month / day setting canceling means 31 which can be automatically reset is selected and set.
[0045]
The month / day setting canceling means 31 outputs a setting canceling signal to the month / day setting means 24 when a predetermined period, for example, a period of one year or the like elapses, from the calendar means 23, and then the operator uses the gas to the month / day setting means 24. A new time, a new start date, a new end date, or a fixed period value is set when the demand amount increases. When a flow rate measurement value equal to or higher than a predetermined flow rate is input from the cycle determination unit 22 to the set month / day determination unit 25, the calendar unit 23 and the month / day setting unit 24 are compared to determine whether the predetermined month / day has been reached, When the predetermined date is reached, the flow rate conversion means 26 converts the flow rate from the unit measurement volume, and integrates the flow rate integration means 27 as the gas usage amount for a specific period. No accumulation is performed when the flow rate is less than the predetermined flow rate or when a certain period of time has elapsed since the predetermined date. For each gas appliance held by the consumer, the actual usage of the gas appliance and the amount of gas used according to the lifestyle pattern are integrated.
[0046]
The unit volume of the measuring section of the gas shut-off device is determined in advance, and the flow rate value of the flow rate pulse output when measuring the gas per unit volume has the same weight as the unit measuring volume of the measuring section. The flow rate conversion means 26 integrates the flow rate integration means 24 instead of the unit measurement volume every time one flow rate pulse is measured. A unit volume per pulse is previously set in the flow rate conversion means 23 by a communication means (not shown) or the like. After that, it is only necessary to replace every pulse measurement, and since it is not necessary to calculate the flow rate per unit time, that is, the instantaneous flow rate, an extremely simple and simple configuration is sufficient. Further, the flow integrated value measured by the flow integrating means 27, the total flow integrated value, etc. are output to the notifying means 28 and displayed on the LCD element or the like. Furthermore, it is possible to confirm and investigate the flow rate accumulation contents from a remote location through a telephone line to the gas supply company.
[0047]
When the gas appliance is started to be used in the gas shut-off device in this way, the start of use is detected by the flow rate pulse signal output from the flow rate detection means 19, and thereafter the gas use is measured and monitored for the flow rate pulse cycle. While determining whether or not the predetermined flow rate is abnormal, it is determined whether or not the predetermined flow rate is greater than the cycle set by the cycle setting unit 21, and the calendar unit 23 and the month and day setting unit 24 determine whether or not the set month and day. When it reaches the limit, it counts the amount of gas used by the appliance, and separates the amount of gas used by the customer during the specified period, such as the New Year and the Bon Festival, from the gas used outside the specified period. However, the gas company can grasp the gas usage trend of the consumer in advance and select the automatic setting or the automatic resetting of the date and time by the switching means 32. It eliminates the hassle of re-setting and clearing, prevents the operator from forgetting to cancel the setting, and has no trouble of re-setting for customers who have no fluctuations in demand. Measures such as charge merit based on the amount used, gas user's gas usage survey can be easily conducted, optimal delivery plans can be made, and flow can be accumulated with extremely high accuracy, providing convenience, ease of use, and reliability Rise.
[0048]
(Example 4)
FIG. 4 shows a gas cutoff device according to a fourth embodiment of the present invention. 4, components having the same functions as those in FIGS. 1, 2, 3, 5, and 6 are given the same reference numerals, and descriptions thereof are omitted.
[0049]
FIG. 4 shows a gas shut-off device according to a fourth embodiment of the present invention. Reference numeral 33 denotes a leap year correcting means. When a set date is set by a communication means (not shown) such as a setting device, February 29 of the leap year is shown. The day may be set as the start date, but in cases other than the leap year, the date setting is automatically corrected on the previous day or the next day to prevent the meter reading only once every four years.
[0050]
Next, the operation of the above configuration will be described. In order to promote gas demand, especially when gas usage increases compared to other periods, when gas appliances are used for a long time, or when a large amount of gas is used as a result, gas usage is divided from the period when only a small amount is used. The flow rate is integrated, the contents of gas usage charges are collected according to a separate charge system, the actual gas usage for each gas consumer is grasped, and an appropriate delivery plan for LP gas cylinders is created, and the actual usage of gas consumers It is necessary to grasp the fluctuation and make management easier.
[0051]
When a gas appliance is used, the metering unit of the gas shut-off device outputs the amount of gas used for each unit metering volume from the flow rate detection means 19 as a pulse signal or the like. The period measuring means 20 starts time measurement from the first pulse signal that starts using the gas appliance, measures the period until the next pulse signal output by the flow rate detecting means 19, and outputs the measured period to the period determining means 22. The cycle starts again from the pulse signal that comes with it. The period setting unit 21 sets a period value to be compared with the period measured by the period measuring unit 20. The pulse period detected and output by the normal flow rate detection means 19 decreases as the flow rate increases in proportion to the gas usage flow rate of the gas appliance, and conversely, if a gas appliance with low gas consumption is used, the gas amount is small. The cycle becomes longer. If you want to integrate the gas flow integrated value when using a large amount of gas with a gas water heater or GHP and the gas flow integrated value when using a small amount of gas separately, assume the gas equipment to be used for the period setting means 22 Set the boundary flow period value. This set value can be set in a plurality of stages by communication means or the like. When the gas appliance is used, the cycle starts from the first flow rate pulse signal. When the next flow rate pulse signal that is measured by unit measurement is detected, the measurement cycle value is output immediately and the next flow rate is measured. At the same time, the period determining means 22 compares the period value set by the period setting means 21 and determines whether or not it is equal to or greater than a predetermined flow rate.
[0052]
The calendar means 23 measures the time on Monday and Sunday. The gas company sets the start date, the period or the end date of the period when the gas demand is high in the date setting means 24 according to the gas usage trend of the gas consumer. At this time, when the start date is set to February 29 of leap year, the leap year correction means 33 receives a signal other than leap year from the calendar means 23 in order to prevent the meter reading integration once every four years. In this case, the start date is corrected on the previous day or the next day.
[0053]
When the flow rate measurement value greater than or equal to the predetermined flow rate is input to the set month / day determination unit 25 from the cycle determination unit 22 after being set and corrected in the month / day setting unit 24, the calendar unit 23 and the month / day setting unit 24 are compared. Then, it is determined whether or not the predetermined date has been reached. When the predetermined date is reached, the flow rate conversion unit 26 converts the flow rate from the unit measurement volume and integrates the flow rate integration unit 27 as the gas usage amount for a specific period. No accumulation is performed when the flow rate is less than the predetermined flow rate or when a certain period of time has elapsed since the predetermined date. For each gas appliance held by the consumer, the actual usage of the gas appliance and the amount of gas used according to the lifestyle pattern are integrated.
[0054]
The unit volume of the measuring section of the gas shut-off device is determined in advance, and the flow rate value of the flow rate pulse output when measuring the gas per unit volume has the same weight as the unit measuring volume of the measuring section. The flow rate conversion means 26 integrates the flow rate integration means 24 instead of the unit measurement volume every time one flow rate pulse is measured. A unit volume per pulse is previously set in the flow rate conversion means 23 by a communication means (not shown) or the like. After that, it is only necessary to replace every pulse measurement, and since it is not necessary to calculate the flow rate per unit time, that is, the instantaneous flow rate, an extremely simple and simple configuration is sufficient. Further, the flow integrated value measured by the flow integrating means 27, the total flow integrated value, etc. are output to the notifying means 28 and displayed on the LCD element or the like. Furthermore, it is possible to confirm and investigate the flow rate accumulation contents from a remote location through a telephone line to the gas supply company.
[0055]
When the gas appliance is started to be used in the gas shut-off device in this way, the start of use is detected by the flow rate pulse signal output from the flow rate detection means 19, and thereafter the gas use is measured and monitored for the flow rate pulse cycle. While determining whether or not the predetermined flow rate is abnormal, it is determined whether or not the predetermined flow rate is greater than the cycle set by the cycle setting unit 21, and the calendar unit 23 and the month and day setting unit 24 determine whether or not the set month and day. However, even if February 29, etc. of the leap year is set by mistake, it is corrected on the previous day or the next day. The amount of gas used during periods when there is a large amount of gas can be accumulated separately from the amount of gas used outside the specified period, and there is no problem such that meter reading is accumulated only once every four years even though there is a peak in demand. It is extremely easy to use, and measures such as gas merits based on the amount of gas used according to the month and day can be set, the gas usage survey of gas consumers can be easily conducted, an optimal delivery plan can be established, and the flow rate can be integrated with extremely high accuracy. This increases convenience, usability, and reliability.
[0056]
(Example 5)
FIG. 5 shows a gas shut-off device according to a fifth embodiment of the present invention. In FIG. 5, components having the same functions as those in FIGS. 1, 2, 3, 4 and 6 are given the same reference numerals, and descriptions thereof are omitted.
[0057]
FIG. 5 shows a gas shut-off device according to a fifth embodiment of the present invention. Reference numeral 34 denotes a day-of-the-week setting means, which sets a day of the week with a high gas demand on a weekly basis by a communication means (not shown) such as a setting device. 35 is an integration determination means. When the integration start setting month and day of the specific gas demand increase period is set, and when the day of the week when there is much gas demand is set, the period of the setting month and the setting day of the week overlap, the setting month and day Is prioritized and integrated in the flow rate integration means 27.
[0058]
Next, the operation of the above configuration will be described. In order to promote gas demand, especially when gas usage increases compared to other periods, when gas appliances are used for a long time, or when a large amount of gas is used as a result, gas usage is divided from the period when only a small amount is used. The flow rate is integrated, the contents of gas usage charges are collected according to a separate charge system, the actual gas usage for each gas consumer is grasped, and an appropriate delivery plan for LP gas cylinders is created, and the actual usage of gas consumers It is necessary to grasp the fluctuation and make management easier.
[0059]
When a gas appliance is used, the metering unit of the gas shut-off device outputs the amount of gas used for each unit metering volume from the flow rate detection means 19 as a pulse signal or the like. The period measuring means 20 starts time measurement from the first pulse signal that starts using the gas appliance, measures the period until the next pulse signal output by the flow rate detecting means 19, and outputs the measured period to the period determining means 22. The cycle starts again from the pulse signal that comes with it. The period setting unit 21 sets a period value to be compared with the period measured by the period measuring unit 20. The pulse period detected and output by the normal flow rate detection means 19 decreases as the flow rate increases in proportion to the gas usage flow rate of the gas appliance, and conversely, if a gas appliance with low gas consumption is used, the gas amount is small. The cycle becomes longer. If you want to integrate the gas flow integrated value when using a large amount of gas with a gas water heater or GHP and the gas flow integrated value when using a small amount of gas separately, assume the gas equipment to be used for the period setting means 22 Set the boundary flow period value. This set value can be set in a plurality of stages by communication means or the like. When the gas appliance is used, the cycle starts from the first flow rate pulse signal. When the next flow rate pulse signal that is measured by unit measurement is detected, the measurement cycle value is output immediately and the next flow rate is measured. At the same time, the period determining means 22 compares the period value set by the period setting means 21 and determines whether or not it is equal to or greater than a predetermined flow rate.
[0060]
The calendar means 23 measures the time on Monday and Sunday. The gas company sets the start date, the period or the end date of the period when the gas demand is high in the date setting means 24 according to the gas usage trend of the gas consumer. Furthermore, the gas company sets the day of the week when the gas demand is high in the weekly unit of the consumer in the day setting means 34. At this time, if the day of the week setting is Saturday and Sunday, and is set to 4 days from the start month and day, and the period overlaps with Saturday and Sunday, the integration determination unit 35 prioritizes the setting of the month and day setting unit 24 and integrates the same. Even though the gas usage is the same day of the week, the integration by the month and day of the flow rate integration means 27 and the integration by day of the week are doubled so as not to integrate.
[0061]
After the setting value of the month / day setting unit 24 is preferentially determined by the integration determination unit 35, when a flow rate measurement value equal to or higher than a predetermined flow rate is input from the cycle determination unit 22 to the setting month / day determination unit 25, the calendar unit 23 and the month / day Compared with the setting means 24, it is determined whether or not the predetermined date has been reached. When the predetermined date is reached, the flow rate conversion means 26 converts the flow rate from the unit measurement volume, and the flow rate integration means 27 stores the gas usage amount for a specific period. Accumulate. No accumulation is performed when the flow rate is less than the predetermined flow rate or when a certain period of time has elapsed since the predetermined date. For each gas appliance held by the consumer, the actual usage of the gas appliance and the amount of gas used according to the lifestyle pattern are integrated.
[0062]
The unit volume of the measuring section of the gas shut-off device is determined in advance, and the flow rate value of the flow rate pulse output when measuring the gas per unit volume has the same weight as the unit measuring volume of the measuring section. The flow rate conversion means 26 integrates the flow rate integration means 24 instead of the unit measurement volume every time one flow rate pulse is measured. A unit volume per pulse is previously set in the flow rate conversion means 23 by a communication means (not shown) or the like. After that, it is only necessary to replace every pulse measurement, and since it is not necessary to calculate the flow rate per unit time, that is, the instantaneous flow rate, an extremely simple and simple configuration is sufficient. Further, the flow integrated value measured by the flow integrating means 27, the total flow integrated value, etc. are output to the notifying means 28 and displayed on the LCD element or the like. Furthermore, it is possible to confirm and investigate the flow rate accumulation contents from a remote location through a telephone line to the gas supply company.
[0063]
When the gas appliance is started to be used in the gas shut-off device in this way, the start of use is detected by the flow rate pulse signal output from the flow rate detection means 19, and thereafter the gas use is measured and monitored for the flow rate pulse cycle. While determining whether or not the predetermined flow rate is abnormal, it is determined whether or not the predetermined flow rate is higher than the cycle set by the cycle setting unit 21, and whether the calendar unit 23 and the month and day setting unit 24 are set month or day is set. If the set month and day of the week overlap, the set month and day are given priority, and when the specified month and day are reached, the gas usage of the appliance is counted and the most gas usage of the consumer throughout the year for a specific period It is possible to integrate the flow rate of the usage amount at the time when there is a lot of gas separately from the gas usage amount outside the specified period, and the metering of the usage metering by month and date and the usage metering by day of the week will be doubled. It is extremely easy to use, and it is possible to provide measures such as price benefits based on the amount of gas used by setting the date, to easily conduct a gas usage survey of gas consumers, to create an optimal delivery plan, and to achieve extremely high accuracy. Therefore, convenience, usability and reliability are improved.
[0064]
【The invention's effect】
As described above, according to the present invention, when a gas flow rate is detected, a flow rate detection unit that outputs a pulse signal, and when a flow rate signal is output from the flow rate detection unit, measurement is started and period measurement until the next flow rate signal is performed. A cycle measuring unit for performing, a cycle setting unit for setting a plurality of cycles to be compared with an output value of the cycle measuring unit, a cycle determining unit for determining whether a flow rate signal cycle measured by the cycle measuring unit is a set cycle or less, Calendar means for measuring the date and time, setting month / day determination means for determining whether or not the calendar start date has been reached from the calendar means, and when the period determination means determines that the predetermined date or less and the setting month / day determination means And a flow rate integration means for integrating the flow rate after the determination and when the gas consumer starts using the gas appliance, the flow rate detection means starts outputting a flow rate signal as a pulse signal. The period is inversely proportional to the flow rate, and when the flow rate pulse detection is started, the flow rate signal period starts to be measured and the period until the next flow rate pulse detection is measured. The set date determination means determines whether the date signal from the calendar means matches the set date, and if it matches, the gas usage is integrated into the flow rate integration means. Gas metering that is highly accurate because the cycle is accurately measured and metered, and if a large amount of time is set in advance, gas charges that are beneficial to gas consumers as special mass usage period charges The system can be set by the gas company, and it is very convenient and the meter reading process can be integrated at high speed, so the measurement accuracy is improved and it is not necessary to consume much power, and convenience and reliability are improved.
[Brief description of the drawings]
FIG. 1 is a control block diagram of a gas shutoff device according to a first embodiment of the present invention.
FIG. 2 is a control block diagram of a gas cutoff device according to a second embodiment of the present invention.
FIG. 3 is a control block diagram of a gas cutoff device according to a third embodiment of the present invention.
FIG. 4 is a control block diagram of a gas shutoff device according to a fourth embodiment of the present invention.
FIG. 5 is a control block diagram of a gas shutoff device according to a fifth embodiment of the present invention.
FIG. 6 is a control block diagram of a conventional gas shut-off device.
[Explanation of symbols]
19 Flow rate detection means
20 Period measurement means
21 Period setting means
22 Period determination means
23 Calendar means
24 month setting means
25 Setting month / day determination means
27 Flow rate integration means
29 Abnormality determination means
30 Blocking means
31 month setting release means
32 Switching means
33 Leap year correction means
34 Day of week setting means
35 Integration judgment means

Claims (5)

Upon detection of the gas flow rate and the flow rate detecting means for outputting a pulse signal, the flow rate signal is output from the flow rate detecting unit starts measuring a period measuring means for measuring the period until the next flow rate signal is output A cycle setting unit that sets a plurality of cycles for comparison with an output value of the cycle measuring unit, a cycle determination unit that determines whether a flow rate signal cycle measured by the cycle measuring unit is equal to or less than a set cycle , and a month day and calendar means for counting and a determining setting date determining means has been reached timed based on the start should do date the integration of the flow rate of the calendar means, when said period decision means is equal to or less than a predetermined period and a is when it is judged, and a flow rate integrating means for integrating the flow rate after the setting date determination means determines that the predetermined date, the gas for applying cheaper rates for the accumulated flow Shut-off device.   The gas cutoff device according to claim 1, wherein the month / day setting means comprises month / day setting releasing means for automatically resetting the month / day setting when a predetermined period elapses.   The gas shut-off device according to claim 1, wherein the month / day setting means comprises switching means for automatically resetting the set value or automatically continuing the setting when a predetermined period elapses.   The gas shut-off device according to claim 1, wherein the date setting means comprises leap month correction means for performing leap year determination. Upon detection of the gas flow rate and the flow rate detecting means for outputting a pulse signal, the flow rate signal is output from the flow rate detecting unit starts measuring a period measuring means for measuring the period until the next flow rate signal is output A cycle setting unit that sets a plurality of cycles for comparison with an output value of the cycle measuring unit, a cycle determination unit that determines whether a flow rate signal cycle measured by the cycle measuring unit is equal to or less than a set cycle , and a month and calendar means for counting Sunday, and the date setting means for setting a start should do date the integration of the detection flow rate of the flow rate detection means, and the day of the week setting means for setting a start should do the day of the week the integration of the flow rate, before Symbol when the counting of the calendars means overlapped and setting day of the week as the set date to the group, the starting then determining accumulation determining means for integrating the flow giving priority to the setting date, the period determining means a predetermined period is less than or equal to A is when it is judged and the integrated determining unit and a flow rate integrating means for integrating the flow rate after determined to be a predetermined date, the gas shut-off for applying cheaper rates for the accumulated flow apparatus.

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