JPH10110946A - Gas shielding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable an inspection about a residual amount of power supply of battery cell for driving a shield valve of a gas shielding device to be positively carried out. SOLUTION: A non-load voltage of a battery cell power supply 10 is measured with an instruction from an inspection signal output section 2. When this non-load voltage is less than a predetermined value, a residual amount measuring section 5 may measure such a voltage as one under a state in which a pseudo load 9 is connected to the battery cell power supply 10. In the case that the voltage under this loaded condition is less than a discriminated value, a residual amount abnormal signal is outputted and a battery cell consumption alarm section 7 may execute either an alarm display or an alarm informing operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas shut-off device as a safety measure for gas use, and more particularly to a gas shut-off device provided with means for checking a remaining capacity of a battery which is a power source of the gas shut-off device. .

[0002]

2. Description of the Related Art A battery is used as a power source for operating a gas shut-off valve in a gas shut-off device. A battery remaining capacity inspection means as shown in FIG. Have been.

[0005] In FIG. 5, a battery remaining capacity inspection means includes a regular timer section 21, a voltage detection section 22, and a remaining capacity determination section 2.
3, a dummy load 24, and a battery exhaustion warning unit 25.

The periodic timer section 21 outputs an inspection signal a to the voltage detection section 22 to perform a battery inspection about once a day. When the test signal a is input, the voltage detection unit 22 connects the pseudo load 24 to the battery power supply 20,
The voltage of the battery power supply 20 at that time is measured. The measured battery voltage b is input to the remaining capacity determination unit 23, and the measured battery voltage b is compared with a preset predetermined value c. It outputs a capacity abnormality signal d. When the battery remaining capacity abnormality signal d is output, the battery consumption warning unit 25 performs a warning display or a warning notification.

[0005]

In the above-mentioned conventional configuration, the remaining battery capacity inspection by the remaining battery capacity inspection means is performed by the following method.
Since the frequency is about once a day, if the battery is consumed during this inspection cycle, the driving power for operating the gas cutoff valve may be insufficient, and the safety as the gas cutoff device cannot be secured. There was a point.

SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the conventional configuration, and provides a gas shut-off device having a means for reliably checking the remaining battery capacity for operating a gas shut-off valve. With the goal.

[0007]

According to a first aspect of the present invention, there is provided a gas shut-off device including a shut-off valve for shutting off a gas passage, and a battery power source for supplying drive power for the shut-off valve. A test signal output unit for outputting a test command signal for checking the capacity at a predetermined time interval, a voltage measuring unit for measuring a no-load voltage of the battery power supply in response to the input of the test command signal; A voltage abnormality determination unit that outputs a voltage abnormality signal when the load voltage measurement value is equal to or less than a predetermined value set in advance, and a pseudo load is connected to the battery power supply when the voltage abnormality signal is input. A remaining capacity measuring unit that measures a battery voltage; and a remaining battery level determining unit that outputs a remaining battery level abnormality signal when a load state voltage value output from the remaining capacity measuring unit is equal to or less than a predetermined determination value. Become And wherein the door.

[0008] According to the above configuration, the battery power source serving as the power source for driving the shut-off valve of the gas shut-off device is frequently subjected to voltage measurement in a no-load state at short time intervals and the measured voltage is equal to or less than a predetermined value. Since the voltage abnormality signal is output when the voltage becomes, the voltage in the load state in which the pseudo load is connected to the battery power supply is measured, and the operation of confirming the voltage abnormality is performed. When the voltage in this load state is equal to or less than the determination value, a remaining amount abnormality signal is output.

According to a second aspect of the present invention, there is provided a gas shut-off device including a shut-off valve for shutting off a gas passage, and a battery power source for supplying driving power to the shut-off valve. A short cycle inspection signal output unit that outputs an inspection command signal for inspection at a predetermined time interval,
A no-load voltage measurement unit that performs no-load voltage measurement of the battery power supply by input of the inspection command signal, and a voltage abnormality signal when a no-load voltage measurement value by the no-load voltage measurement unit is equal to or less than a predetermined value. A voltage abnormality determination unit that outputs
A long cycle inspection signal output unit that outputs an inspection command signal for causing the remaining capacity of the battery power supply to be inspected in a long cycle at predetermined time intervals; and a battery inspection command signal or the voltage abnormality signal from the long cycle inspection signal output unit. A load voltage measuring unit for connecting a pseudo load to the battery power source when input and measuring a battery voltage in a load state, and a load state voltage output from the loaded voltage measuring unit is a predetermined determination voltage A battery remaining amount determining unit that outputs a remaining amount abnormality signal when the value is equal to or less than the value.

According to the above configuration, the battery power source serving as the power source for driving the shut-off valve of the gas shut-off device measures the voltage in a no-load state frequently at short time intervals, and performs a load state measurement at a long time interval. Is carried out. When the voltage abnormality signal is output when the voltage measured in the short cycle becomes equal to or less than the predetermined value, the voltage measurement in the load state in which the pseudo load is connected to the battery power supply is performed regardless of the measurement cycle of the voltage measurement in the long cycle. Then, a voltage abnormality check operation is performed. When the voltage in this load state is equal to or less than the determination voltage value, a remaining amount abnormality signal is output.

According to a third aspect of the present invention, there is provided a gas shut-off device including a shut-off valve for shutting off a gas passage, and a battery power source for supplying driving power to the shut-off valve. A short cycle inspection signal output unit that outputs an inspection command signal for inspection at a predetermined time interval,
A no-load voltage measurement unit that performs no-load voltage measurement of the battery power supply by input of the inspection command signal, and a voltage abnormality signal when a no-load voltage measurement value by the no-load voltage measurement unit is equal to or less than a predetermined value. A voltage abnormality determination unit that outputs
A long cycle inspection signal output unit that outputs an inspection command signal for causing the remaining capacity of the battery power supply to be inspected in a long cycle at predetermined time intervals, and a battery inspection command signal from the long term inspection signal output unit is input. A load voltage measuring unit that measures a battery voltage in a load state by connecting a pseudo load to a battery power supply, and when a load state voltage output from the load voltage measuring unit is equal to or less than a predetermined determination voltage value. And a battery remaining amount judging section for outputting a remaining amount abnormality signal.

According to the above configuration, the abnormal voltage is detected by measuring the no-load voltage in the short cycle, and the abnormal voltage is detected by measuring the voltage in the load state in the long cycle.
When the voltage detected in any one of them is equal to or less than a predetermined value, a remaining amount abnormality signal is output. In this configuration, while the battery remaining capacity is detected by measuring the voltage in the load state in the long cycle, the voltage drop due to the battery exhaustion is detected by the short cycle no-load voltage measurement. Can be detected.

In each of the above-described configurations, since the target battery is a lithium battery, it is sufficient to check the battery voltage in a load state. However, when another battery is used, the remaining battery level is determined by the remaining battery level determination unit. When the remaining capacity is determined using the internal resistance of the battery calculated from the no-load state voltage and the loaded voltage as the remaining capacity evaluation value that outputs the abnormal signal, more reliable remaining capacity evaluation can be performed.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings to provide an understanding of the present invention.
The embodiment described below is an example embodying the present invention, and does not limit the technical scope of the present invention.

FIG. 1 is a block diagram showing the configuration of a first embodiment of a gas cut-off device provided with a battery remaining capacity inspection means for checking the remaining capacity of a battery power supply 10 which is a power source of the gas cut-off device. is there.

In FIG. 1, a gas shut-off device 1 includes a test signal output section 2 for outputting a test command signal A for a battery voltage at predetermined time intervals, and a battery power supply 10 for each time the test command signal A is input. A voltage measuring unit 3 for measuring a load voltage B, and comparing the measured battery voltage B with a preset predetermined value C, and when the battery voltage B is lower than the predetermined value C, the voltage abnormality signal D
And a battery power supply 10 for measuring the remaining capacity of the battery based on the input of the voltage abnormality signal D.
And a remaining capacity measuring unit 5 for measuring the battery voltage E under load by connecting the pseudo load 9 to the battery voltage E when the pseudo load 5 is connected to the predetermined value F. A battery remaining amount determining unit for outputting a remaining amount abnormality signal when the remaining amount is equal to or less than a predetermined value; and a battery consumption warning unit for providing a warning display or an alarm notification when the remaining amount abnormality signal is input. It is configured.

The operation of the gas shut-off device 1 having the above configuration will be described below.
This will be described below with reference to the flowchart shown in FIG.
.. Shown in FIG. 2 are the step numbers indicating the processing procedure, and correspond to the numbers added to the text.

In FIG. 2, an inspection signal output unit 2 is configured as a timer for outputting an inspection instruction signal A at predetermined time intervals, and the inspection instruction output unit 2 outputs the inspection instruction signal A several times an hour (for example, every 10 minutes). The signal A is output (S1). The voltage measurement unit 3 to which the inspection command signal A has been input measures the voltage of the battery power supply 10 and outputs a no-load battery voltage B (S2).
Voltage abnormality determination unit 4 to which the no-load battery voltage B is input
Compares a predetermined value C set in advance with the no-load battery voltage B (S3), outputs a voltage abnormality signal D when B ≦ C, and when B> C, The processing of the inspection command at this time ends (S4).

Evaluating the degree of consumption of the battery, that is, the remaining capacity only with the battery voltage in a no-load state as described above does not result in an accurate determination of the remaining capacity. It is necessary to calculate the internal resistance of the battery from the voltage when a current flows through a specified load and the voltage when no load is applied, and evaluate the operating state of the battery from the internal resistance.

Therefore, in the present configuration, a state in which the battery voltage in a no-load state becomes equal to or lower than a predetermined value, that is, a state in which the voltage decreases when approaching the limit of battery consumption is detected in the above-described inspection step. Then, a specified pseudo load is connected to the battery, and the battery voltage is measured while a current is flowing through the pseudo load to accurately detect the remaining capacity of the battery.

When the voltage abnormality signal D is output by the voltage abnormality determination unit 4 in step 4 (S5), the remaining capacity measurement unit 5 connects the pseudo load 9 to the battery power source 10 (S5).
6) Then, the voltage of the battery power supply 10 at that time, that is, the load state voltage E is measured (S7), and is output to the battery remaining amount determination unit 6.
The remaining battery level judging unit 6 compares the load state voltage E with a predetermined judging voltage value F (S8). Output (S9). When the comparison is determined to be F> G, the processing of the inspection command at that time ends. When the remaining battery level abnormality signal H is input, the battery exhaustion alarm unit 7 displays a battery exhaustion warning or notifies the monitoring center that monitors the gas shutoff device 1 for an abnormality.

When a battery other than a lithium battery is used as the battery 10, the internal resistance of the battery 10 is calculated based on the load state voltage E and the no-load voltage B when the pseudo load 5 is connected. It is also possible to employ a configuration in which the calculated value is calculated as an evaluation value and compared with a preset internal resistance determination value. In the calculation of the remaining capacity evaluation value, the internal resistance of the battery power supply 10 can be calculated by a simple calculation of {(no load voltage−load voltage) / load voltage} × resistance value of the pseudo load.

Next, a second embodiment of the present invention will be described. Elements common to the configuration of the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

FIG. 3 is a block diagram showing a configuration of a gas cutoff device 11 according to a second embodiment of the present invention.

In FIG. 3, a gas shut-off device 11 includes a short cycle inspection signal output section 12 for outputting a battery voltage inspection command signal A at short predetermined time intervals, and a battery power supply every time the inspection command signal A is input. A no-load voltage measuring unit 13 for measuring the no-load voltage B, and comparing the measured no-load voltage B with a preset predetermined value C, and when the no-load voltage B is equal to or less than the predetermined value C, the voltage is abnormal. A voltage abnormality determination unit 14 that outputs a signal D; a long cycle inspection signal output unit 15 that outputs a battery inspection command signal H at long predetermined time intervals; A loaded voltage measuring unit 16 for connecting the load 9 to measure the load state voltage E; and comparing the load state voltage E with a predetermined judgment value F set in advance to determine that the load state voltage E is lower than the judgment value F. When there is an error Battery residual amount judging section 17 for outputting a G
And a battery exhaustion warning unit 18 that performs a warning display or an alarm notification when the remaining amount abnormality signal G is input.

The operation of the gas shut-off device 11 having the above configuration will be described with reference to the flowchart shown in FIG.
.. Shown in FIG. 4 are step numbers indicating the processing procedure, and correspond to the numbers added to the text.

In FIG. 4, the short cycle inspection signal output section 12 is configured as a timer for outputting the inspection command signal A at short predetermined time intervals, for example, several time intervals per hour. Output the signal A (S1
1). The no-load voltage measurement unit 13 to which the short-term inspection command signal A has been input measures the voltage of the battery power supply 10 and outputs a no-load battery voltage B (S12). The voltage abnormality determining unit 14 to which the no-load battery voltage B has been input compares the preset predetermined value C with the no-load battery voltage B (S13).
When this is B ≦ C, an abnormal voltage signal D is output,
If B> C, the processing of the inspection command at this time ends (S14).

When the abnormal voltage signal D is output from the abnormal voltage judging section 14 (S15), the abnormal voltage signal D is input to the loaded voltage measuring section 16. The loaded voltage measuring unit 5 connects the pseudo load 9 to the battery power source 10 (S16), measures the voltage of the battery power source 10 at that time, that is, the load state voltage E (S17), and outputs the voltage to the battery remaining amount determining unit 6. I do.

On the other hand, the long cycle inspection command output unit 15
The timer is configured to output the battery inspection command signal I at a long predetermined time interval, for example, about once a day (for example, every 25 hours). The signal is output to the loaded voltage measuring section 16 (S18). As described above, since it is inaccurate to evaluate the remaining capacity of the battery power supply 10 from the battery voltage in the no-load state, the pseudo load 9 having a predetermined load resistance is connected to the battery power supply 10 at a long inspection frequency. The loaded voltage measuring unit 16 that measures the loaded voltage and executes the measurement operation with the battery inspection command signal H is the voltage abnormal signal D output from the voltage abnormality determining unit 14 as described above.
The measurement operation is also executed by the input of.

The remaining battery level determination unit 6 compares the load state voltage E output from the loaded voltage measurement unit 16 with a predetermined determination voltage value J (S19). When the comparison is E ≦ F, the remaining amount abnormality signal H is output to the battery exhaustion alarm unit 7, and when the comparison is E> F, the processing of the inspection command at that time is ended ( S20). When the remaining battery level abnormality signal H is input, the battery exhaustion alarm unit 7 displays a battery exhaustion alarm or notifies a monitoring center that monitors an abnormality of the gas shutoff device 1 (S21).

Next, a third embodiment of the present invention will be described. Note that the same reference numerals are given to components common to the configuration of the second embodiment, and description thereof will be omitted.

FIG. 5 is a block diagram showing a configuration of a gas cutoff device 11 according to a third embodiment of the present invention.

In FIG. 5, the gas cutoff device 20 outputs a battery voltage inspection command signal A for a short predetermined time interval (for example, 1
A short-cycle inspection signal output unit 12 that outputs a signal every 0 minutes);
Each time the inspection command signal A is input, the no-load voltage measuring unit 13 that measures the no-load voltage B of the battery power source 10 and compares the measured no-load voltage B with a predetermined value C to determine the no-load voltage. When the load voltage B is lower than the predetermined value C, the voltage abnormality signal D
, A long cycle inspection signal output unit 15 that outputs a battery inspection command signal H at long predetermined time intervals (for example, every 25 hours), and when the battery inspection command signal H is input. Loaded voltage measuring section 16 for connecting load 4 to battery power supply 10 and measuring load state voltage E
A battery remaining amount determination unit 17 that outputs a remaining amount abnormality signal G when the load state voltage E is equal to or less than the determination value F by comparing the load state voltage E with a predetermined determination value F set in advance; And a battery exhaustion alarm unit 18 for displaying a warning or notifying when a voltage abnormality signal D from the voltage abnormality determination unit 14 or a remaining amount abnormality signal G from the battery remaining amount determination unit 17 is input. ing.

In the above configuration, the voltage in a state where the pseudo load 9 is connected to the power supply battery 10 is measured in a long cycle of, for example, 25 hours, and the state of battery consumption is determined. Since there is a possibility that the power supply battery 10 is consumed, the no-load voltage of the power supply battery 10 is measured in a short cycle at intervals of, for example, 10 minutes in parallel with the measurement of the load voltage in the long cycle. Since a warning display or an alarm notification is also made when a voltage abnormality is detected at the short cycle measurement interval, it is possible to prevent a state in which the gas shutoff operation by the gas shutoff device 20 due to the exhaustion of the battery power supply 10 cannot be performed.

In each of the above-described embodiments, when the remaining amount abnormality signal G or the voltage abnormality signal D is output, a warning display or a warning notification is performed by the battery consumption warning unit 18. Alternatively, the gas shutoff valve may be driven to cut off the gas passage.

[0036]

As described above, according to the first aspect of the present invention, the voltage of the battery power source for driving the shut-off valve of the gas shut-off device is frequently measured at short intervals at no load. Then, when the measured voltage becomes equal to or less than a predetermined value, a voltage abnormality signal is output. When this voltage abnormality signal is output, voltage measurement is performed in a load state where a pseudo load is connected to the battery power supply, and a voltage abnormality confirmation operation is performed. A remaining amount evaluation value of the battery power supply is calculated from the voltage in this load state and the no-load voltage, and when this value is equal to or less than the determination value, a remaining amount abnormality signal is output. In this configuration, when a voltage drop due to battery exhaustion is detected by frequent no-load voltage measurement, battery exhaustion is confirmed by loaded voltage measurement, so that power consumption is reduced and battery exhaustion detection is performed reliably. it can.

According to the second aspect of the present invention, the battery power source serving as the power source for driving the shut-off valve of the gas shut-off device performs voltage measurement in a no-load state frequently at short time intervals and has a long time. Voltage measurement under load is performed at time intervals. A voltage abnormality signal is output when the voltage measured in the short cycle becomes equal to or less than a predetermined value.In this case, voltage measurement in a load state in which a pseudo load is connected to the battery power supply regardless of the measurement cycle of the voltage measurement in the long cycle. Made
A voltage abnormality confirmation operation is performed. When the voltage in this load state is equal to or less than the determination voltage value, a remaining amount abnormality signal is output. In this configuration, the no-load voltage measurement in the short cycle and the loaded voltage measurement in the long cycle are performed, and the loaded voltage measurement is performed when an abnormality is detected during the short cycle measurement. Battery consumption can be reduced and a reliable battery remaining capacity inspection can be performed.

Further, according to the third aspect of the present invention, a voltage abnormality is detected by a no-load voltage measurement in a short cycle, and a voltage abnormality is detected by a voltage measurement in a load state in a long cycle. When the voltage detected in any one of them is equal to or less than a predetermined value, a remaining amount abnormality signal is output. In this configuration, voltage measurement in a short cycle and voltage measurement in a load state in a long cycle are performed in parallel.
Abnormality during long-term cycle measurement is detected by short-term cycle measurement, and more reliable battery consumption can be detected by long-term cycle measurement. be able to.

In each of the above-described configurations, the target battery is a lithium battery. Therefore, the battery voltage can be checked under a load state. When the remaining capacity is determined using the internal resistance of the battery calculated from the no-load state voltage and the loaded voltage as the remaining capacity evaluation value that outputs the abnormal signal, more reliable remaining capacity evaluation can be performed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a gas shutoff device according to a first embodiment of the present invention.

FIG. 2 is a flowchart illustrating a processing procedure of a battery exhaustion inspection according to the above configuration.

FIG. 3 is a block diagram illustrating a configuration of a gas shutoff device according to a second embodiment.

FIG. 4 is a flowchart illustrating a processing procedure of a battery consumption test according to the above configuration.

FIG. 5 is a block diagram showing a configuration of a gas shutoff device according to a third embodiment.

FIG. 6 is a block diagram showing a configuration of a gas shut-off device according to a conventional example.

[Explanation of symbols]

 1, 11, 20 Battery remaining amount inspection device 2 Inspection signal output unit 3 Voltage measurement unit 4, 14 Voltage abnormality determination unit 5 Remaining capacity measurement unit 6, 17 Battery remaining amount determination unit 7, 18 Battery exhaustion alarm unit 9 Pseudo load 10 Battery power supply 12 Short cycle test signal output section 13 No load voltage measurement section 15 Long cycle test signal output section 16 Loaded voltage measurement section

 ────────────────────────────────────────────────── ─── Continuing from the front page (71) Applicant 000116633 Aichi Watch Electric Co., Ltd. 1-270, Chitose 1-chome, Atsuta-ku, Nagoya-shi, Aichi (72) Inventor Hirozumi Nakamura 1006 Kazuma Kazuma, Kadoma-shi, Osaka Matsushita Electric Industrial Inside (72) Inventor Hirokuni Murakami 1006 Kadoma, Kazuma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (72) Inventor Toyosui Ikukawa 1006, Oji Kadoma, Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (72) Author Kazumitsu Atsui 9-10 Misonodai, Fujisawa-shi, Kanagawa Prefecture (72) Inventor Katsuto Sakai 4-4-11 Shirai-machi, Shirai-cho, Inba-gun, Chiba Prefecture (72) Inventor Isao Kaneko 4, Nakameguro, Meguro-ku, Tokyo −13−21 B−807 (72) Inventor Yoko Sato 2-11-2 Kajigaya, Takatsu-ku, Kawasaki City, Kanagawa Prefecture (72) Inventor Shinichi Sato 543-15 Kitanocho, Hachioji City, Tokyo (72) Akita Fukushima Okito Fuji Electric Co., Ltd. (1-1) Tanabe-Nitta, Kawasaki-ku, Kawasaki-shi, Kanagawa Prefecture (72) Inventor Takeshi Numagami 1-1, Tanabe-Nitta, Kawasaki-ku, Kawasaki-shi, Kanagawa Fuji Electric Co., Ltd. (72 ) Inventor Hideo Masuda 70 Yanagimachi, Yuki-ku, Kawasaki-shi, Kanagawa Prefecture Inside Toshiba Yanagimachi Plant Co., Ltd. (72) Inventor Mitsuru Saito 1-2-70, Millennial, Atsuta-ku, Nagoya-shi, Aichi Aichi Watch Electric Co., Ltd. (72) Invention Person Tomio Uenono 2-70 Sennen 1-chome, Atsuta-ku, Nagoya-shi, Aichi

Claims (4)

[Claims] 1. A gas shut-off device comprising a shut-off valve for shutting off a gas passage, and a battery power supply for supplying drive power for the shut-off valve, wherein a test command signal for checking a remaining capacity of the battery power is determined by a predetermined command signal. An inspection signal output unit that outputs at time intervals, a voltage measurement unit that measures the no-load voltage of the battery power supply based on the input of the inspection command signal, and a predetermined value in which the no-load voltage measurement value by the voltage measurement unit is set in advance. A voltage abnormality determination unit that outputs a voltage abnormality signal when the following, a remaining capacity measurement unit that measures a battery voltage in a load state by connecting a pseudo load to the battery power supply when the voltage abnormality signal is input, A gas remaining amount determining unit that outputs a remaining amount abnormality signal when a load state voltage value output from the remaining amount measuring unit is equal to or less than a predetermined determination value. . 2. A gas shut-off device comprising a shut-off valve for shutting off a gas passage and a battery power supply for supplying drive power for the shut-off valve, wherein a test command for checking the remaining capacity of the battery power in a short cycle. A short-cycle inspection signal output unit that outputs a signal at a predetermined time interval; a no-load voltage measurement unit that performs no-load voltage measurement of the battery power supply by inputting the inspection command signal; and a no-load voltage by the no-load voltage measurement unit. A voltage abnormality determination unit that outputs a voltage abnormality signal when the measured value is equal to or less than a predetermined value set in advance, and a voltage output unit that outputs an inspection command signal for inspecting the remaining capacity of the battery power supply in a long cycle at predetermined time intervals. A cycle inspection signal output unit, and a pseudo load connected to the battery power supply when a battery inspection command signal or the abnormal voltage signal is input from the long-term inspection signal output unit to load state. A loaded voltage measuring unit that measures the battery voltage of the battery, and a remaining battery level determining unit that outputs a remaining battery level abnormality signal when a load state voltage output from the loaded voltage measuring unit is equal to or less than a predetermined determination voltage value. A gas shut-off device comprising: 3. A gas shut-off device comprising a shut-off valve for shutting off a gas passage and a battery power supply for supplying drive power for the shut-off valve, wherein a test command for checking the remaining capacity of the battery power in a short cycle. A short-cycle inspection signal output unit that outputs a signal at a predetermined time interval; a no-load voltage measurement unit that performs no-load voltage measurement of the battery power supply by inputting the inspection command signal; and a no-load voltage by the no-load voltage measurement unit. A voltage abnormality determination unit that outputs a voltage abnormality signal when the measured value is equal to or less than a predetermined value set in advance, and a voltage output unit that outputs an inspection command signal for inspecting the remaining capacity of the battery power supply in a long cycle at predetermined time intervals. When a battery test command signal is input from the cycle test signal output unit and the long-term test signal output unit, a pseudo load is connected to the battery power source to measure a battery voltage in a load state. A load voltage measurement unit; and a battery remaining amount determination unit that outputs a remaining amount abnormality signal when a load state voltage output from the loaded voltage measurement unit is equal to or less than a predetermined determination voltage value. A gas shut-off device characterized by the above-mentioned. 4. An internal resistance of a battery calculated from a no-load state voltage and a loaded voltage as a remaining capacity evaluation value for outputting a remaining capacity abnormality signal from a battery remaining capacity determination unit. 4. The gas shut-off device according to 1, 2, or 3.