JP2006105855A - Gas shut-off device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent various data from becoming unable to be analyzed because of destruction of storage data, such as flow measuring value, utilization time of a device, and maintenance and safety regulation data of the past. <P>SOLUTION: A voltage drop detecting part 11 monitors the voltage of a battery power source part 9 in every predetermined fixed time, determines the battery voltage drop when coming to a battery consumption voltage or lower set, while taking a battery consumption in a prescribed time going back from an operation ensured voltage serving as the lower limit value, capable of operating a shut-off valve 13 into consideration, outputs an operation signal to the shut-off valve 13 after a prescribed time, and outputs a signal to store various data of that time into a storage part 10. The data is thereby able to be analyzed by supplying the power source again to the storage part 10 to take out the memory thereof, even the voltage of the battery power source part 9 gets low. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a gas shut-off device that stores various data at the end of the device life in a shut-off device that monitors the usage state of a gas appliance that uses, for example, city gas or LP gas.

  This type of conventional shut-off device, for example, is configured as shown in FIG. 2 in a gas shut-off device (see, for example, Patent Document 1). FIG. 2 shows a control block diagram of a conventional gas shut-off device.

  In the gas shut-off device 1 shown in FIG. 2, reference numeral 2 denotes a battery power source, which supplies power to the entire gas shut-off device. Reference numeral 3 denotes a shut-off valve, which stops or supplies gas in the flow path. Reference numeral 4 denotes a voltage drop detection unit, which detects a battery voltage taking into account a predetermined time that goes back from the operation guarantee voltage in which the capacity of the battery power supply unit 2 capable of operating the gas shut-off device 1 remains. Signal A is output. 5 is an opening acceptance unit that accepts opening of the shut-off valve from the time when the voltage drop signal A is input, and opens when there is an opening request (opening request switch or input of an opening signal by communication). A stopper request signal C is output.

  A timer unit 6 counts a predetermined operation guarantee time from when the voltage drop signal A is input, and outputs a plug opening completion signal D. Reference numeral 7 denotes an opening function stop unit which outputs a closing stop signal E for stopping the opening according to the opening request signal C when the opening end signal D is input. Reference numeral 8 denotes a gas shut-off control unit, which shuts off the shut-off valve 3 when the battery voltage drop signal A or the closure stop signal E is inputted, and when the opening request signal C is inputted before the input signal of the closure stop signal E. The shut-off valve 3 is opened.

  Next, the operation of the configuration of the conventional example will be described. When the voltage drop detection unit 4 checking the consumption level of the battery power supply unit 2 detects the battery consumption voltage, the battery voltage drop signal A is output to the unplug accepting unit 5, the timer unit 6 and the gas cutoff control unit 8. . The gas cutoff control unit 8 to which the voltage drop signal A is input outputs the first cutoff command signal B1 to operate the cutoff valve 3 and close the gas passage. When the voltage drop signal A is input, the timer unit 6 starts counting, and until the timer unit 6 finishes counting for a predetermined time, there is a plug opening request to the plug opening receiving unit 5, and the plug opening request signal C Is output, the gas cutoff control unit 8 opens the cutoff valve 3. When the timer unit 6 finishes counting, the plug opening end signal D is output, so the plug opening function stop unit 7 outputs the plug opening stop signal E and stops accepting the plug opening request. The gas cutoff device 1 to which the closing stop signal E is inputted outputs the second cutoff command signal B2 to close the cutoff valve 3.

In the gas shut-off device 1 attached to the flow path through which medium gas such as city gas and LP gas flows, the voltage drop detection unit 4 measures the voltage of the battery power supply unit 2 at a predetermined time interval and monitors the degree of battery consumption. ing. A lower limit voltage at which the gas shut-off device 1 can be operated is set in advance as an operation guarantee voltage, and a voltage value when the voltage is reversed for a required number of days from here is set as a battery consumption voltage. The voltage drop detection unit 4 monitors the battery voltage and detects the battery voltage at the time of consumption. That is, after the battery consumption voltage is detected for the required number of days, the shutoff valve 3 can be opened only during the period when the voltage of the battery power supply unit 2 drops to the operation guarantee voltage, and a grace period is provided until the gas shutoff device 1 is replaced. It is a thing.
Japanese Patent Laid-Open No. 10-103546

  However, the conventional configuration has the following problems. In the conventional gas shut-off device, the battery power supply section continues to drop because the battery is consumed due to the circuit operation even after the shut-off valve operation after the battery exhaust voltage is detected. Although not described here, the battery power supply unit 2 is not connected to the battery power supply unit 2 of the present apparatus, and the operation voltage of the microcomputer, which is a processing device that performs flow rate measurement and various security determinations, cannot be maintained after a certain time. As a result, important data such as flow rate measurement values, device usage time, past security history, etc. stored in the microcomputer will be destroyed, and it will not be possible to analyze these various data later. Had problems.

  The present invention solves the above-described conventional problems, and stores various data accumulated in the past at the end of use in a storage unit that does not disappear even when the power is turned off, thereby enabling later data analysis. It is an object of the present invention to provide a gas shut-off device that can improve the device.

  In order to solve the conventional problem, in the gas cutoff device of the present invention, the voltage drop detection unit monitors the voltage of the battery power supply unit at predetermined time intervals. Then, the battery voltage drop is determined to be less than the battery consumption voltage set in consideration of the battery consumption for a predetermined time that goes back from the operation guarantee voltage, which is the lower limit value at which the cutoff valve can be operated. The life of this device is completed by outputting the valve operation signal. The battery voltage drop detection unit outputs a signal so as to store the various data at that time in a storage unit that does not lose the data even when the power is turned off. A storage unit that receives the signal from the voltage drop detection unit and is connected to the microcomputer stores various data stored in the microcomputer at that time. After that, even if the battery power consumption causes the voltage drop of the battery power supply unit and the various data stored in the microcomputer are destroyed, the storage unit stores various data when the life of the apparatus is completed.

  As a result, even when the voltage of the battery power supply unit is lost, when data analysis is performed, it is possible to perform data analysis at the end of the life of the apparatus by supplying power again to the storage unit and taking out the stored contents to the outside.

  The gas shut-off device of the present invention outputs a signal so that the voltage drop detection unit stores various data at that time in the storage unit when the shut-off valve operation signal is output after the battery voltage drop determination, which is the completion of the life of the device. . A storage unit that receives the signal from the voltage drop detection unit and is connected to the microcomputer stores various data stored in the microcomputer at that time. After that, even if the battery power consumption causes the voltage drop of the battery power supply unit and the various data stored in the microcomputer are destroyed, the storage unit stores various data when the life of the apparatus is completed. When performing data analysis, data at the end of the life of the apparatus can be obtained by supplying power again to the storage unit and taking out the stored contents to the outside. Analyzing this data, based on the integrated flow rate value of this device, the actual operation time of the device, the factors that detected various safety abnormalities, etc. The frequency of occurrence is required. Further considerations can be made when designing the next product, and it is possible to improve the gas shutoff device with higher safety and cost.

  1st invention is a gas shut-off device provided with the shut-off valve which shuts off a gas passage at the time of abnormality, and the battery power supply part which supplies operating power to the device containing this shut-off valve, The voltage of the battery power supply part was predetermined The battery voltage drop is determined when the battery consumption voltage falls below the preset battery consumption voltage taking into account the battery consumption for a predetermined time that goes back from the operation guarantee voltage, which is the lower limit value that can be monitored and operated at the fixed time. A voltage drop detection unit that outputs a shut-off valve operation signal after a predetermined time and outputs a signal so as to store various data at that time in a storage unit that does not lose data even when the power is turned off. However, when the shut-off valve operation signal is output after the battery voltage drop determination is completed, the signal is output so as to be stored in the storage unit. A storage unit that receives the signal from the voltage drop detection unit and is connected to the microcomputer stores various data stored in the microcomputer at that time.

  After that, even if the battery power consumption causes the voltage drop of the battery power supply unit and the various data stored in the microcomputer are destroyed, the storage unit stores various data when the life of the apparatus is completed. When performing data analysis, data at the end of the life of the apparatus can be obtained by supplying power again to the storage unit and taking out the stored contents to the outside. Then, based on the integrated flow rate value of this device, the time when the device actually operated, the factors that detected abnormalities in various types of safety, etc., the battery capacity of the battery power supply unit, the availability of component life, the frequency of occurrence of safety problems, etc. Desired. Further consideration can be made when designing the next product based on this data, and it is possible to improve the gas shutoff device with higher safety and economy.

  The second invention determines a battery voltage drop, outputs a signal to store various data at the time of battery voltage drop determination in a storage unit that does not lose data even when the power is turned off, and operates a shut-off valve after a predetermined time By using a voltage drop detection unit that outputs a signal, some abnormality occurs in the battery power supply unit, battery consumption rapidly proceeds, and by a predetermined time after the voltage drop detection unit determines the battery voltage drop, Even if the voltage drop progresses and the various data stored in the microcomputer is destroyed, the various data at the time of battery voltage drop determination are stored in the storage unit. It is possible to analyze the cause of rapid battery consumption. Further considerations can be made when designing the next product, and it is possible to improve the gas shutoff device with higher safety.

  The third invention determines a battery voltage drop and outputs a signal to store various data at the time of battery voltage drop determination in a storage unit that does not lose data even when the power is turned off. By using a voltage drop detection unit that outputs a valve operation signal and a signal for updating various data, the battery power supply unit has some abnormality and battery consumption rapidly proceeds. If the battery power supply voltage drop continues and the various data stored in the microcomputer are destroyed by the predetermined time after the battery is stored, the battery voltage drop determination data is stored in the storage unit. By analyzing the above, it becomes possible to analyze the cause of the rapid battery consumption of this apparatus. In addition, when the voltage drop detection unit outputs the shut-off valve operation signal after the battery voltage drop is determined to be the end of the life of the apparatus, a signal is output so that various data at that time are stored again in the storage unit. The storage unit that receives the signal from the voltage drop detection unit and is connected to the microcomputer stores various data accumulated in the microcomputer at that time.

  After that, even if the battery power consumption causes the battery power supply voltage to drop and the various data stored in the microcomputer are destroyed, the data stored at the end of the life of the device remains in the storage unit. When performing, data at the end of life of the apparatus can be obtained by supplying power again to the storage unit and taking out the stored contents to the outside. In this way, various data can be analyzed regardless of whether the battery power supply is abnormal or normal. Further consideration can be made when designing the next product based on this data, and it is possible to improve the gas shutoff device with higher safety and economy.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments. Further, although the embodiment of the present invention will be described using a gas shut-off device, the present invention is not limited to gas, and may be a battery voltage determination device such as water supply, electric power, or combustion fuel.

(Embodiment 1)
FIG. 1 shows a control block diagram of the gas shut-off device in the first embodiment of the present invention.

  In FIG. 1, there are 9 power supply voltage units. Reference numeral 10 denotes a storage unit, which is composed of storage elements that do not erase data once stored even when the power is turned off. A voltage drop detection unit 11 monitors the battery voltage of the battery power supply unit 9 and the storage unit 10 at regular time intervals. Reference numeral 12 denotes a display unit that displays a battery voltage drop or the like in the power supply voltage unit 9 if there is any. A shut-off valve 13 shuts off the gas passage when an abnormality occurs. Although not shown in the figure, the battery power supply unit 9 is configured to be connected to a microcomputer, which is a processing device that performs flow rate measurement and various security determinations.

  The operation and action of the gas shut-off device configured as described above will be described below.

  First, the voltage drop detection part 11 monitors the voltage of the power supply voltage part 9 for every predetermined time. Then, the battery voltage drop is determined because the battery consumption voltage is lower than the battery consumption voltage set in consideration of the battery consumption for a predetermined time that goes back from the operation guarantee voltage that becomes the lower limit value at which the shut-off valve 13 can be operated. By outputting an operation signal to the shut-off valve 13, the life of the apparatus is completed. The voltage drop detection unit 11 outputs a signal so as to store various data at that time in the storage unit 10. The storage unit 10 is composed of an element such as an EEPROM that can be electrically rewritten and that does not lose data even when the power is turned off. The storage unit 10 that receives the signal from the voltage drop detection unit 11 and is connected to the microcomputer stores various data accumulated in the microcomputer at that time. Here, the battery consumption for the storage unit 10 to store various data is extremely small and ignored. Thereafter, even if the battery power consumption 9 causes the voltage drop of the battery power supply unit 9 and the various data stored in the microcomputer are destroyed, the storage unit 10 stores various data when the life of the apparatus is completed.

  As a result, even when the voltage of the battery power supply unit 9 is lost, when data analysis is performed, it is possible to obtain data at the end of the life of the apparatus by reapplying power to the storage unit 10 and taking out the stored contents to the outside. I can do it. Analyzing this data, based on the integrated flow rate of this device, the actual operation time of the device, the factors that have detected abnormalities in various types of safety, etc. The frequency of occurrence is required. Further consideration can be made when designing the next product based on this data, and it is possible to improve the gas shutoff device with higher safety and cost.

  In addition, the voltage drop detection unit 11 determines whether the battery voltage has dropped, and at the time of battery voltage drop determination, the storage unit 10 is configured with an element that can be electrically rewritten like an EEPROM and does not lose data even when the power is turned off. A signal may be output so as to store the various data, and an operation signal may be output to the shutoff valve 13 after a predetermined time.

  As a result, some abnormality occurs in the battery power supply unit 9 and battery consumption rapidly proceeds. By a predetermined time after the voltage drop detection unit 11 determines the battery voltage drop, the voltage drop of the battery power supply unit 9 advances and the microcomputer Even when the various data stored in the memory are destroyed, the various data at the time of battery voltage drop determination are stored in the storage unit 10. By analyzing this data, it is possible to analyze the cause of the rapid battery consumption of the apparatus. Based on this data, further considerations can be made when designing the next product, and it is possible to improve the gas shutoff device with higher safety.

  In addition, the voltage drop detection unit 11 determines whether the battery voltage has dropped, and at the time of battery voltage drop determination, the storage unit 10 is configured with an element that can be electrically rewritten like an EEPROM and does not lose data even when the power is turned off. A signal may be output so as to store the various data, and an operation signal may be output to the shutoff valve 13 and a signal for updating the various data may be output at a predetermined time.

  As a result, some abnormality occurs in the battery power supply unit 9 and battery consumption rapidly progresses. By a predetermined time after the voltage drop detection unit 11 determines the battery voltage drop, the voltage drop of the battery power supply unit proceeds and the microcomputer enters the microcomputer. When the stored various data is destroyed, the various data at the time of the battery voltage drop determination are stored in the storage unit 10, and the analysis of the cause of the rapid battery consumption of the apparatus can be performed by analyzing this data. It becomes possible. In addition, when the voltage drop detection unit 11 outputs an operation signal to the shutoff valve 13 after the battery voltage drop determination, which is the completion of the life of the apparatus, it outputs a signal so as to store various data at that time in the storage unit 10 again. The storage unit 10 that receives the signal from the voltage drop detection unit 11 and is connected to the microcomputer stores various data accumulated in the microcomputer at that time.

  After that, even if the battery power consumption 9 decreases due to battery consumption and the various data stored in the microcomputer are destroyed, the storage unit 10 still stores various data when the life of the apparatus is completed. When analysis is performed, data at the end of the life of the apparatus can be obtained by supplying power again to the storage unit 10 and taking out the stored contents to the outside. In this way, various data can be analyzed regardless of whether the battery power supply is abnormal or normal. Further considerations can be made when designing the next product, and it is possible to improve the gas shutoff device with higher safety and cost.

  As described above, the gas shut-off device according to the present invention can store various data at the end of the life of the device even if the battery power consumption causes the voltage drop of the battery power supply unit to progress and the various data stored in the microcomputer are destroyed. Since data storage remains and data analysis can be performed, the present invention can be applied not only to gas but also to battery voltage determination devices such as water supply, electric power, and combustion fuel.

FIG. 1 is a control block diagram of the gas cutoff device according to the first embodiment of the present invention. Control block diagram of a conventional gas shut-off device

Explanation of symbols

2, 9 Battery power supply unit 3, 13 Shut-off valve 10 Storage unit 11 Voltage drop determination unit 12 Display unit

Claims (3)

In a gas shut-off device comprising a shut-off valve that shuts off the gas passage in the event of an abnormality and a battery power supply unit that supplies operating power to a device including the shut-off valve, the voltage of the battery power supply unit is monitored at predetermined intervals. The battery voltage drop is determined when the battery consumption voltage is lower than the battery consumption voltage set in consideration of the battery consumption for a predetermined time that goes back from the operation guarantee voltage that is the lower limit value at which the shut-off valve can be operated. A gas shut-off device comprising a voltage drop detection unit that outputs a valve operation signal and outputs a signal so as to store various data at that time in a storage unit that does not lose data even when the power is turned off. Voltage drop that determines battery voltage drop and outputs a signal to store various data at the time of battery voltage drop decision in the memory part that does not disappear even if the power is turned off, and outputs a shut-off valve operation signal after a predetermined time The gas cutoff device according to claim 1, further comprising a detection unit. In addition to determining battery voltage drop, outputs a signal to store various data at the time of battery voltage drop determination in a storage unit that does not lose data even when the power is turned off, and outputs a shut-off valve operation signal at a predetermined time The gas cutoff device according to claim 1, further comprising a battery voltage drop detection unit that outputs a signal for updating various data.

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