JP6426036B2 - Gas supply control device and control method - Google Patents

Description

The present invention relates to a gas supply control instrumentation 置及 beauty control method.

  Conventionally, in order to protect the gas, the gas supply is shut off when the vibration value applied to the gas meter installed at the user who supplies the gas reaches or exceeds a predetermined value. There is.

  In Patent Document 1, a gas meter that determines whether or not an earthquake has occurred by comparing the vibration value applied to its own gas meter with the vibration value received from another gas meter whose vibration value is equal to or greater than a predetermined value. Is disclosed. This gas meter shuts off the gas supply when it is determined that an earthquake has occurred.

  In the governor control device that collectively controls the supply of gas to a plurality of customers in an area of a predetermined range, the patent document 2 supplies the gas when an earthquake whose scale is equal to or more than a predetermined value is detected. A supply control system is disclosed that shuts off.

JP 2008-139269 A Patent No. 5335057

  However, even with the single security information such as the vibration value and the scale of the earthquake, even if the gas supply should be shut off for gas security, the shut off of the gas supply can not be performed accurately. there were.

The present invention has been made to solve the above problems, and it is possible to accurately supply gas as compared to the case where it is determined whether or not to shut off the supply of gas using only a single piece of security information. and to provide a gas supply control instrumentation 置及 beauty control method capable of blocking.

In order to achieve the above object, the gas supply control device of the first invention is installed in each of a plurality of customers in a predetermined range of area , and a plurality of gas meters each having a plurality of types of sensors And acquisition means for acquiring the output of each of the plurality of types of sensors included in the gas meter of the own device, and a plurality of types of security information obtained from the outputs of each of the plurality of types of sensors acquired by the acquisition means. It is determined that the security abnormality is indicated by the first determination means for determining whether or not at least one type indicates the security abnormality, and the other gas meters included in the plurality of gas meters, and the security information transmitted is receiving means for receiving, security information is determined to indicate a security anomalies own device by the first judging means and said other gas has been received by the receiving means If the number of the gas meter defined by security information determined to indicate a security abnormality is a gas meter the number of predetermined proportion or more in the area for Ta, when judged that you cut off the supply of gas A second determination unit that performs the determination after at least one of weighting of the number of gas meters and change of the predetermined ratio is performed based on outputs of the plurality of types of sensors, and the second determination and in case it is determined that you cut off the supply of gas, and control means for controlling to shut off the supply of gas to the consumer device itself is installed, the by means.

Further, in order to achieve the above object, the control method of a gas supply control device according to the second aspect of the present invention is installed in each of a plurality of customers in an area of a predetermined range, and each has a plurality of types of sensors. Among the plurality of gas meters provided, at least one of the plurality of types of security information obtained from the outputs of the plurality of types of sensors obtained by obtaining the outputs of the plurality of types of sensors included in the gas meter of the own device It is determined whether or not the type indicates a security abnormality, and it is determined from the other gas meters included in the plurality of gas meters that a security abnormality is determined to be received, and the transmitted security information is received, and The gas meter determined by the security information determined to indicate an abnormality and the security information determined to indicate a security abnormality for the other gas meter received Weighting of the number of gas meters based on the output of each of the plurality of types of sensors when it is determined that the supply of gas is shut off if the number of is greater than or equal to a predetermined percentage of the number of gas meters in the area And, after performing at least one of the change of the predetermined ratio, the determination is performed, and when it is determined that the supply of gas is shut off, the supply of gas to the customer installed with the own device is shut off Including controlling.

  According to the present invention, it is possible to accurately shut off the gas supply as compared to the case where it is determined whether to shut off the gas supply using only a single piece of security information.

It is a schematic diagram which shows the structure of the gas supply control system which concerns on 1st Embodiment. It is a block diagram which shows the principal part structure of the electric system of the gas meter which concerns on each embodiment. It is a flow chart which shows a flow of processing of a gas supply control processing program concerning a 1st embodiment. It is a schematic diagram which shows an example of the state which the gas meter controlled interruption of supply of gas separately. It is a schematic diagram which shows an example of the state which controlled the interruption | blocking of supply of gas using the security information which the gas meter received from other gas meters. It is a schematic diagram which shows an example of the state which the gas meter controlled interruption of supply of gas separately. It is a schematic diagram which shows an example of the state which controlled the interruption | blocking of supply of gas using the security information which the gas meter received from other gas meters. It is a schematic diagram which shows the structure of the gas supply control system which concerns on 2nd Embodiment. FIG. 10 is a block diagram showing a main configuration of an electrical system of a governor control device according to a second embodiment and a third embodiment. It is a flow chart which shows a flow of processing of a security information transmission processing program concerning a 2nd embodiment and a 3rd embodiment. It is a flowchart which shows the flow of a process of the gas supply control processing program which concerns on 2nd Embodiment. It is a schematic diagram which shows an example of a state which the governor control apparatus controlled interruption | blocking of supply of gas based on the security information of only an own apparatus. It is a schematic diagram which shows an example of the state which controlled the interruption | blocking of supply of gas also using the security information which the governor control apparatus received from each gas meter. It is a schematic diagram which shows the structure of the gas supply control system which concerns on 3rd Embodiment. It is a block diagram which shows the principal part structure of the electric system of the management apparatus which concerns on 3rd Embodiment. It is a flowchart which shows the flow of a process of the gas supply control processing program which concerns on 3rd Embodiment. It is a flowchart which shows the flow of a process of the gas supply management processing program which concerns on 3rd Embodiment. It is a schematic diagram which shows an example of the state which the governor control apparatus controlled interruption | blocking of supply of gas separately. It is a schematic diagram which shows an example of the state which control of interruption | blocking of supply of gas was performed using the type information which the management apparatus received from the governor control apparatus.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

First Embodiment
First, the configuration of a gas supply control system 10A according to the present embodiment will be described with reference to FIG. As shown in FIG. 1, a gas supply control system 10A according to the present embodiment includes gas meters 16A to 16J installed one by one for customers 14A to 14J in an area 12 of a predetermined range. In addition, below, when it is not necessary to distinguish the consumers 14A-14J, the alphabet of the code | symbol end is abbreviate | omitted. Moreover, below, when it is not necessary to distinguish gas meter 16A-16J, the alphabet of the code | symbol end is abbreviate | omitted.

  The gas meter 16 according to the present embodiment is provided with a shutoff valve 44 (see FIG. 2) so as to be able to open and close, and supplies the gas to the customer 14 by opening the shutoff valve 44. In addition, the gas meter 16 shuts off the shutoff valve 44 to shut off the supply of gas to the customer 14.

  Further, the gas meter 16 can mutually transmit and receive data by wireless communication with the gas meter 16 installed in the adjacent customer 14. Further, even when each gas meter 16 can not directly communicate, data can be transmitted and received mutually by passing through the gas meter 16 located in the middle of the communication path. For example, the gas meter 16A shown in FIG. 1 can mutually transmit and receive data directly with the gas meters 16B and 16C, and can transmit and receive data mutually with the gas meter 16D via the gas meter 16B. It has become. Communication between the gas meters 16 may be wired communication.

  Next, with reference to FIG. 2, the principal part structure of the electric system of the gas meter 16 which concerns on this Embodiment is demonstrated. As shown in FIG. 2, the gas meter 16 according to the present embodiment is a central processing unit (CPU) 30 that controls the overall operation of the gas meter 16 and a ROM (Read Only) in which various programs and various parameters are stored in advance. Memory) 32 is provided. The gas meter 16 also includes a RAM (Random Access Memory) 34 used as a work area or the like when the CPU 30 executes various programs, and a non-volatile storage unit 36 such as a flash memory.

  The gas meter 16 also includes a communication line I / F (Interface) unit 38 that transmits and receives communication data to and from an external device, and a display unit 40 that notifies the user of various information related to the operation status of the gas meter 16 and the like. . The gas meter 16 also includes an operation unit 42 that receives various instructions from the user, and the shutoff valve 44 described above.

  In addition, the gas meter 16 includes an acceleration sensor 46, an ultrasonic sensor 48, a temperature sensor 50, a fire sensor 52, a humidity sensor 54, and a pressure sensor 56 in order to obtain multiple types of security information related to gas security. . The acceleration sensor 46 according to the present embodiment detects accelerations of three axes. The three axes mentioned here are, for example, one direction in the horizontal direction as the X axis, a direction orthogonal to the X axis in the horizontal direction as the Y axis, and a vertical direction perpendicular to the X axis and the Y axis as the Z axis Three axes. The ultrasonic sensor 48 according to the present embodiment includes a sensor using ultrasonic waves as an example, and when the amount of dust in the gas meter 16 becomes equal to or more than a predetermined amount, and when water enters the gas meter 16. Each outputs a sensor abnormality signal indicating that the sensor has become abnormal. The ultrasonic sensor 48 is not limited to a sensor using ultrasonic waves, and can detect that the amount of dust in the gas meter 16 has reached a predetermined amount or more and that water has infiltrated into the gas meter 16. Other sensors than ultrasonic waves may be used.

  The temperature sensor 50 according to the present embodiment detects the temperature of the main body of the gas meter 16 (hereinafter simply referred to as “main body temperature”), and the temperature of the gas supplied to the customer 14 via the gas meter 16 (hereinafter , Simply referred to as "gas temperature". The fire sensor 52 according to the present embodiment is a sensor using an infrared ray as an example, and outputs a fire occurrence signal indicating that a fire has occurred when the amount of smoke reaches a predetermined amount or more. The humidity sensor 54 according to the present embodiment detects the humidity in the gas meter 16. The pressure sensor 56 according to the present embodiment detects the pressure of the gas supplied via the gas meter 16.

  The CPU 30, the ROM 32, the RAM 34, the storage unit 36, the communication line I / F unit 38, the display unit 40, and the operation unit 42 are connected to one another via a bus 58. In addition to these parts, the shut-off valve 44, the acceleration sensor 46, the ultrasonic sensor 48, the temperature sensor 50, the fire sensor 52, the humidity sensor 54, and the pressure sensor 56 are also connected to one another via the bus 58. .

  With the above configuration, the gas meter 16 according to the present embodiment causes the CPU 30 to access the ROM 32, the RAM 34, and the storage unit 36, and transmit and receive communication data via the communication line I / F unit 38. Further, the gas meter 16 causes the CPU 30 to display various information on the display unit 40, acquire various data via the operation unit 42, and control opening / closing of the shutoff valve 44.

  Further, the gas meter 16 obtains the acceleration of the three axes output from the acceleration sensor 46, the sensor abnormality signal output from the ultrasonic sensor 48, and the main body temperature and the gas temperature output from the temperature sensor 50 by the CPU 30, respectively. Do. Further, the gas meter 16 causes the CPU 30 to acquire the fire occurrence signal output from the fire sensor 52, the humidity output from the humidity sensor 54, and the pressure output from the pressure sensor 56, respectively.

  In addition, the gas meter 16 derives an SI (Spectrum Intensity) value as a value indicating the magnitude of the earthquake based on the acceleration of the three axes acquired from the acceleration sensor 46 by the CPU 30. Further, the gas meter 16 is an angle of inclination of the gas meter 16 with respect to the horizontal direction based on the acceleration of three axes obtained from the acceleration sensor 46 by the CPU 30 (that is, the angle of inclination of the ground at the position where the gas meter 16 is installed) Derive Further, the gas meter 16 derives a long cycle SI value as a value indicating long cycle vibration based on the acceleration of the three axes acquired from the acceleration sensor 46 by the CPU 30.

  Next, with reference to FIG. 3, the operation of the gas meter 16 according to the present embodiment will be described. FIG. 3 is a flow chart showing the flow of processing of the gas supply control processing program executed by the CPU 30 when, for example, the power of the gas meter 16 is turned on. Further, the gas supply control processing program is installed in advance in the ROM 32.

  In step 100 of FIG. 3, the CPU 30 obtains the outputs from the acceleration sensor 46, the ultrasonic sensor 48, the temperature sensor 50, the fire sensor 52, the humidity sensor 54, and the pressure sensor 56, respectively.

  In the next step 102, the CPU 30 determines whether or not at least one of the outputs of each sensor acquired by the processing of the step 100 indicates an abnormality relating to gas security (hereinafter referred to as "security abnormality"). . If the determination is positive, the CPU 30 proceeds to the process of step 104. Here, a method of determining whether the output from each sensor indicates a security abnormality will be described.

  The CPU 30 derives the SI value based on the acceleration of three axes output from the acceleration sensor 46, and when the derived SI value is equal to or more than the threshold value V1 (for example, a value equivalent to seismic intensity 5), It is determined that the output indicates a security abnormality. Further, the CPU 30 derives the angle of the inclination based on the acceleration of the three axes output from the acceleration sensor 46, and when the derived angle is equal to or larger than the threshold V2, the output from the acceleration sensor 46 indicates a security abnormality. It is determined that Further, the CPU 30 derives a long cycle SI value based on the acceleration of three axes output from the acceleration sensor 46, and when the derived long cycle SI value is equal to or more than the threshold value V3, the output from the acceleration sensor 46 is secure. It is determined that an abnormality is indicated.

  When the sensor abnormality signal is output from the ultrasonic sensor 48, the CPU 30 determines that the output from the ultrasonic sensor 48 indicates a security abnormality. Further, when the main body temperature output from the temperature sensor 50 is equal to or higher than the threshold V 4 (for example, 100 ° C.), the CPU 30 considers that the fire has occurred and the output from the temperature sensor 50 indicates a security abnormality. judge. Further, when the difference between the main body temperature output from the temperature sensor 50 and the gas temperature is equal to or more than the threshold value V5, the CPU 30 assumes that a fire has occurred and the output from the temperature sensor 50 indicates a security abnormality. It is determined that

  When the fire occurrence signal is output from the fire sensor 52, the CPU 30 determines that the output from the fire sensor 52 indicates a security abnormality. Further, when the humidity output from the humidity sensor 54 is equal to or higher than the threshold V6, the CPU 30 assumes that water is infiltrating the gas meter 16 or the gas pipe, and the output from the humidity sensor 54 indicates a security abnormality. It is determined that there is. In addition, when the pressure output from the pressure sensor 56 is out of the range predetermined as the normal value of the pressure of the gas, the CPU 30 determines that the output from the pressure sensor 56 indicates a security abnormality.

  In step 104, the CPU 30 transmits the security information determined to indicate the security abnormality in the process of step 102 to all the other gas meters 16 via the communication line I / F unit 38. Specifically, when determining that the output from the acceleration sensor 46 indicates a security abnormality, the CPU 30 transmits the SI value, the angle of the inclination, and the long cycle SI value to the other gas meter 16. Further, when it is determined that the output from the ultrasonic sensor 48 indicates a security abnormality, the CPU 30 transmits sensor abnormality information indicating that the sensor abnormality signal is output from the ultrasonic sensor 48 to the other gas meter 16. .

  When the CPU 30 determines that the output from the temperature sensor 50 indicates a security abnormality, the CPU 30 transmits the main body temperature and the gas temperature acquired from the temperature sensor 50 to the other gas meter 16. Further, when the CPU 30 determines that the output from the fire sensor 52 indicates a security abnormality, the CPU 30 transmits fire occurrence information indicating that the fire occurrence signal is output from the fire sensor 52 to the other gas meter 16. When the CPU 30 determines that the output from the humidity sensor 54 indicates a security abnormality, the CPU 30 transmits the humidity acquired from the humidity sensor 54 to the other gas meter 16. When the CPU 30 determines that the output from the pressure sensor 56 indicates a security abnormality, the CPU 30 transmits the pressure acquired from the pressure sensor 56 to the other gas meter 16.

  On the other hand, when the determination in step 102 is negative, the CPU 30 proceeds to the process of step 106 without executing the process of step 104. In step 106, the CPU 30 receives the information that is judged to be a security abnormality by another gas meter 16 and is transmitted via the communication line I / F unit 38.

  In the next step 108, the CPU 30 determines whether it is time to finish the reception of the information transmitted from the other gas meter 16 or not. If the determination is negative, the CPU 30 returns to the process of step 100. If the determination is positive, the CPU 30 proceeds to step 110. In the present embodiment, the timing at which the information transmitted from all the other gas meters 16 is received, and even when the information is not received from all the other gas meters 16, as the timing for ending the above reception, Since the information is received from the other gas meter 16 first, the timing when a certain period has elapsed is applied.

  In step 110, the CPU 30 determines that the security abnormality is indicated by the information determined to indicate the security abnormality in the process of the step 102 and the other gas meter 16 received in the process of the step 106 and is transmitted. Based on the information, it is determined whether the determination criteria for determining to shut off the gas supply are satisfied. If the determination is negative, the CPU 30 returns to the process of step 100, but if the determination is positive, the CPU 30 proceeds to step 112. Here, this determination criterion will be described.

  In the present embodiment, as an example, the CPU 30 detects that the SI value is equal to or greater than the threshold value V1 if the number of gas meters 16 is equal to or greater than a predetermined ratio (for example, 80%) of the number of all gas meters 16 in the area 12 To shut off the gas supply. Further, when the number of gas meters 16 detecting that the inclination angle is equal to or more than the threshold V2 is equal to or more than a predetermined ratio of the number of all gas meters 16 in the area 12, the CPU 30 determines to shut off the gas supply. . Further, when the number of gas meters 16 detecting that the long cycle SI value is equal to or more than the threshold value V3 is a predetermined ratio or more of the number of all gas meters 16 in the area 12, the CPU 30 determines to shut off the gas supply. .

  Further, when the number of gas meters 16 that have detected the sensor abnormality signal is equal to or more than a predetermined ratio of the number of all gas meters 16 in the area 12, the CPU 30 determines to shut off the gas supply. Further, when the number of gas meters 16 detecting that the main body temperature is equal to or higher than the threshold V4 is equal to or more than a predetermined ratio of the number of all gas meters 16 in the area 12, the CPU 30 determines to shut off the gas supply. In addition, the CPU 30 supplies the gas when the number of gas meters 16 detecting that the difference between the main body temperature and the gas temperature is equal to or more than the threshold value V5 is equal to or more than the predetermined ratio of the number of all gas meters 16 in the area 12. Determine to shut off.

  Further, when the number of gas meters 16 that have detected a fire occurrence signal is equal to or more than a predetermined ratio of the number of all gas meters 16 in the area 12, the CPU 30 determines to shut off the gas supply. Further, when the number of gas meters 16 detecting that the humidity is equal to or higher than the threshold value V6 is equal to or more than a predetermined ratio of the number of all gas meters 16 in the area 12, the CPU 30 determines to shut off the gas supply. Further, the CPU 30 detects that the pressure of the gas is out of a predetermined range as the range of the normal value of the pressure of the gas, and the number of gas meters 16 is a predetermined ratio or more of the number of all gas meters 16 in the area 12 In this case, it is determined to shut off the gas supply.

  In addition, the determination method regarding interruption | blocking of supply of gas is not restricted to the method demonstrated above. For example, weighting may be performed according to the detected value, or the predetermined ratio may be changed. For example, when weighting is performed, the CPU 30 sets a larger weight value as the SI value is larger, and makes a determination regarding blocking of gas supply. Specifically, for example, the CPU 30 counts one gas meter 16 that detects that the SI value is not less than the threshold value V1 and is less than the threshold value V7 (for example, a value corresponding to seismic intensity 6 weak) larger than the threshold value V1. . In addition, the CPU 30 counts 1.5 gas meters 16 that detect that the SI value is equal to or higher than the threshold V7 and lower than the threshold V8 (for example, a value corresponding to the seismic intensity 6 strength) larger than the threshold V7. Further, the CPU 30 counts two gas meters 16 that have detected that the SI value is equal to or more than the threshold value V8. Then, when the number of gas meters 16 weighted and summed up as described above is equal to or more than a predetermined ratio of the number of all gas meters 16 in the area 12, the CPU 30 determines to shut off the gas supply.

  For example, when changing the above-mentioned predetermined ratio, CPU30 makes a predetermined ratio low, and performs judgment about interception of supply of gas, so that SI value is large. Specifically, for example, the CPU 30 detects that the SI value is equal to or higher than the threshold value V7 at a rate (for example, 60%) or more lower than the predetermined ratio of the number of all gas meters 16 in the area 12 In some cases, it is determined to shut off the gas supply. Also, for example, when there is even one gas meter 16 that detects that the SI value is equal to or greater than the value corresponding to the seismic intensity 7, the CPU 30 determines to shut off the gas supply.

  The weighting by the detected value described above and the change of the predetermined ratio are not limited to the SI value, and the same applies to the angle of the inclination, the long cycle SI value, the main body temperature, and the difference between the main body temperature and the gas temperature. It is applicable.

  Also, for example, weighting may be performed or the predetermined ratio may be changed according to the number of times it is determined that the security abnormality is indicated within a predetermined period of the repeated processing of steps 100 to 108. For example, the CPU 30 sets a larger weight value as the number of times of detection of the fire occurrence signal is larger, and makes a determination regarding blocking of gas supply. Specifically, for example, the CPU 30 counts one gas meter 16 which detects the fire occurrence signal once in the predetermined period. Also, for example, the CPU 30 counts 1.5 of the gas meters 16 that detect the fire occurrence signal a plurality of times (for example, twice or more times C1 times (for example, less than 10 times)) within the fixed period. Also, for example, the CPU 30 counts two gas meters 16 that detect the fire occurrence signal more than the number of times C1 within the fixed period. Then, when the number of gas meters 16 weighted and summed up as described above is equal to or more than a predetermined ratio of the number of all gas meters 16 in the area 12, the CPU 30 determines to shut off the gas supply.

  For example, when changing the above-mentioned predetermined ratio, CPU30 makes a predetermined ratio low by making the number of times which detected the above-mentioned fire occurrence signal increase, and performs judgment about interception of supply of gas. Specifically, for example, the CPU 30 detects that the number of times of detection of the fire occurrence signal is two or more and less than C1 from the predetermined ratio of the number of all gas meters 16 in the area 12 to the number of gas meters 16 It is determined that the supply of gas is shut off when it is a low ratio (for example, 60%) or more. In addition, for example, the CPU 30 determines to shut off the supply of gas when there is even one gas meter 16 that detects the fire occurrence signal more than the number of times C1 within the predetermined period.

  The weighting by the determined number of times and the change of the predetermined ratio described above are not limited to the fire occurrence signal, and it is determined that the number of times the sensor abnormality signal is output and the output from the humidity sensor 54 indicates a security abnormality. The same applies to the number of times and the number of times of determining that the output from the pressure sensor 56 indicates a security abnormality.

  As described above, in comparison with the case where the determination criterion is uniformly determined by performing weighting by the detected value, changing the predetermined ratio, weighting by the determined number of times, and changing the predetermined ratio, If necessary, the supply of gas can be shut off more accurately.

  In step 112, the CPU 30 shuts off the shutoff valve 44 to shut off the gas supply from the gas meter 16 to the customer 14, and ends the present gas supply control processing program.

  In FIG. 4 and FIG. 5, as one example, the ultrasonic sensor 48 of the gas meters 16B, 16D, 16F, 16G, 16I, 16J shuts off the gas in each gas meter 16 when detecting that the sensor has become abnormal. Is shown. FIG. 4 shows a state in which each gas meter 16 individually controls the shutoff of the gas supply using the output from the ultrasonic sensor 48 of its own device. Further, in FIG. 5, in addition to the output from the ultrasonic sensor 48 of its own device, each gas meter 16 also outputs the ultrasonic sensors 48 of other gas meters 16 in the area 12 as in the present embodiment. It shows a state in which the control of the shutoff of the gas supply is performed using this.

  As shown in FIG. 4, when the respective gas meters 16 individually control the shutoff of the gas supply, the gas meters 16B, 16D, 16F, 16G, 16I, 16J which detect that the ultrasonic sensor 48 has become abnormal. The supply of gas through is shut off. On the other hand, the supply of gas via the gas meters 16A, 16C, 16E, 16H which has not detected that the ultrasonic sensor 48 has become abnormal is continuously performed.

  On the other hand, as shown in FIG. 5, when each gas meter 16 also uses the output from the ultrasonic sensor 48 of the other gas meter 16 in the area 12, the gas meter does not detect that the ultrasonic sensor 48 has become abnormal. The supply of gas via 16A, 16C, 16E, 16H is also shut off.

  Further, in FIGS. 6 and 7, as an example, the shutoff state of the gas in each gas meter 16 when the SI value derived from the acceleration of three axes output from the acceleration sensor 46 of the gas meter 16E is less than the threshold V1. It shows. Moreover, in FIG.6 and FIG.7, the SI value derived | led-out from the acceleration of 3 axis | shafts output from the acceleration sensor 46 of gas meters 16 other than the gas meter 16E is shown about the state which is more than threshold value V1 as an example. 6 and 7 show, as an example, that the above-mentioned SI value of the gas meter 16E is a value corresponding to seismic intensity 5 lower, and the above SI value of the gas meters 16A, 16B, 16I is a value corresponding to seismic intensity 5 higher Indicates a state of

  Moreover, in FIG.6 and FIG.7, the said SI value of gas meter 16C, 16D, 16F, 16G, 16J is a value equivalent to seismic intensity 6 as an example, and said SI value of gas meter 16H is seismic intensity 6 It shows a state of strong value. Further, FIG. 6 shows a state in which each gas meter 16 individually controls the shutoff of the gas supply using the output from the acceleration sensor 46 of its own device. Further, FIG. 7 shows that each gas meter 16 uses the output from the acceleration sensor 46 of another gas meter 16 in the area 12 in addition to the output from the acceleration sensor 46 of its own device as in the present embodiment. It shows the state in which the control of the shutoff of the gas supply is performed.

  As shown in FIG. 6, when each gas meter 16 individually controls the shutoff of the gas, it was detected through the gas meters 16A to 16D and 16F to 16J that detected that the SI value became the threshold value V1 or more. The gas supply is shut off. On the other hand, supply of gas via the gas meter 16E which has not detected that the said SI value became more than the threshold value V1 is performed continuously.

  On the other hand, as shown in FIG. 7, when each gas meter 16 also uses the output from the acceleration sensor 46 of another gas meter 16 in the area 12, the gas meter does not detect that the SI value has become the threshold V1 or more. The supply of gas via 16E is also shut off.

  As described above, according to the present embodiment, it is determined whether or not to shut off the gas supply using a plurality of types of safety information, so only a single safety information is used to supply the gas. As compared with the case of determining whether or not to shut off, the supply of gas can be shut off with high accuracy.

  Further, according to the present embodiment, since the safety information of the plurality of gas meters 16 is used, the gas information is added not only to the situation of only the individual gas meters 16 but also to the situation of the other gas meters 16 in the area 12 Supply can be shut off.

Second Embodiment
First, the configuration of a gas supply control system 10B according to the present embodiment will be described with reference to FIG. Components in FIG. 8 having the same functions as those in FIG. 1 are assigned the same reference numerals as in FIG. 1 and the description thereof is omitted. As shown in FIG. 8, the gas supply control system 10B according to the present embodiment includes a governor control device 60 that collectively controls the supply of gas to each gas meter 16.

  The governor control device 60 according to the present embodiment has a governor 76 (see FIG. 9) in which a shutoff valve 76A (see FIG. 9) is provided so as to be able to open and close. Then, the governor control device 60 supplies the gas to each gas meter 16 via the governor 76 by opening the shutoff valve 76A. Further, the governor control device 60 collectively shuts off the supply of gas to each gas meter 16 via the governor 76 upstream of each gas meter 16 by closing the shutoff valve 76A.

  Further, the governor control device 60 can mutually transmit and receive data by wireless communication with the gas meter 16 (the gas meter 16C installed at the closest position in the example shown in FIG. 8) installed at a communicable distance. ing. In addition, the governor control device 60 can mutually transmit and receive data through the gas meter 16 located in the middle of the communication path even with the gas meter 16 which can not communicate directly. For example, the governor control device 60 can mutually transmit and receive data via the gas meters 16A to 16C with the gas meter 16D shown in FIG. The communication between the governor control device 60 and the gas meter 16 may be wired communication.

  Next, as for the gas meter 16 according to the present embodiment, only portions different from the gas meter 16 according to the first embodiment will be described. The gas meter 16 according to the present embodiment causes the CPU 30 to transmit and receive communication data via the communication line I / F unit 38 only with the governor control device 60. Further, as described above, the gas meter 16 according to the present embodiment performs only transfer of communication data when transmitting and receiving communication data with the governor control device 60 as described above. Moreover, the gas meter 16 which concerns on this Embodiment determines whether supply of gas is interrupted | blocked based on the output from each sensor of a self-apparatus.

  Next, with reference to FIG. 9, the main configuration of the electrical system of the governor control device 60 according to the present embodiment will be described. As shown in FIG. 9, the governor control apparatus 60 according to the present embodiment includes a CPU 62 which controls the overall operation of the governor control apparatus 60, and a ROM 64 in which various programs, various parameters, and the like are stored in advance. The governor control device 60 further includes a RAM 66 used as a work area or the like when the CPU 62 executes various programs, and a non-volatile storage unit 68 such as a flash memory.

  The governor control device 60 further includes a communication line I / F unit 70 that transmits and receives communication data to and from an external device, and a display unit 72 that notifies the user of various information related to the operation status of the governor control device 60 and the like. There is. The governor control device 60 also includes an operation unit 74 for receiving various instructions from the user, and a governor 76 having the above-described shutoff valve 76A. In addition, the governor control device 60 includes an acceleration sensor 78 similar to the acceleration sensor 46 according to the first embodiment. The CPU 62, the ROM 64, the RAM 66, the storage unit 68, the communication line I / F unit 70, the display unit 72, the operation unit 74, the governor 76, and the acceleration sensor 78 are connected to one another via a bus 80.

  With the above configuration, the governor control device 60 according to the present embodiment causes the CPU 62 to access the ROM 64, the RAM 66, and the storage unit 68, and transmit and receive communication data via the communication line I / F unit 70. Further, the governor control device 60 causes the CPU 62 to display various information on the display unit 72, acquire various data via the operation unit 74, and control opening / closing of the shutoff valve 76A.

  Further, the governor control device 60 acquires the accelerations of the three axes output from the acceleration sensor 78 by the CPU 62. Further, the governor control device 60, like the gas meter 16 according to the first embodiment, determines the SI value and the inclination of the governor control device 60 with respect to the horizontal direction based on the acceleration of three axes obtained from the acceleration sensor 46. The angle and long period SI values are derived respectively.

  Next, with reference to FIGS. 10 and 11, the operation of the gas supply control system 10B according to the present embodiment will be described. FIG. 10 is a flow chart showing a flow of processing of a security information transmission processing program executed by the CPU 30 when, for example, the power of the gas meter 16 is turned on. Also, the security information transmission processing program is installed in advance in the ROM 32. Also, steps in FIG. 10 that execute the same processes as in FIG. 3 are assigned the same step numbers as in FIG. 3 and descriptions thereof will be omitted. On the other hand, FIG. 11 is a flowchart showing a flow of processing of a gas supply control processing program executed by the CPU 62 when, for example, the power of the governor control device 60 is turned on. Also, the gas supply control processing program is installed in advance in the ROM 64.

  In step 102A of FIG. 10, the CPU 30 determines that at least one of the outputs of each sensor acquired by the process of step 100 is the same as the process of step 102 of the gas supply control processing program according to the first embodiment. It is determined whether an abnormality is indicated. If the determination is negative, the CPU 30 returns to the process of step 100, but if the determination is affirmative, the CPU 30 proceeds to the process of step 104A.

  In step 104A, the CPU 30 transmits the security information determined to indicate the security abnormality by the process of step 102A to the governor control device 60 via the communication line I / F unit 38.

  In step 150 of FIG. 11, the CPU 62 obtains an output from the acceleration sensor 78. In the next step 152, the CPU 62 determines that there is a security abnormality by the gas meter 16 in the area 12 by the processing of step 104A of the security information transmission processing program, and transmits the transmitted information through the communication line I / F unit 70. To receive.

  In the next step 154, the CPU 62 determines whether the timing for ending the reception of the information transmitted from the gas meter 16 has come. If the determination is negative, the CPU 62 returns to the process of step 150, but if the determination is positive, the CPU 62 proceeds to the process of step 156. In the present embodiment, the timing at which the information transmitted from all the gas meters 16 in the area 12 is received as the timing to end the above reception, and even when the information is not received from all the gas meters 16, Since the information is first received from the gas meter 16, the timing at which a certain period has elapsed is applied.

  In step 156, the CPU 62 supplies the gas based on the acceleration obtained by the process of step 150 and the information that is judged to indicate a security abnormality by the gas meter 16 received by the process of step 152 and transmitted. It is determined whether the determination criteria for determining to block are satisfied. As to the determination in step 156, the determination made in the processing of step 110 of the gas supply control processing program is the SI value derived based on the acceleration acquired in the processing of step 150, the angle of the inclination, Because long-period SI values may be added, detailed description will be omitted here. If the determination is negative, the CPU 62 returns to the process of step 150, but if the determination is positive, the CPU 62 proceeds to the process of step 158.

  At step 158, the CPU 62 shuts off the gas supply from the governor control unit 60 to each gas meter 16 by closing the shutoff valve 76A. In the next step 160, the CPU 62 transmits shutoff instruction information indicating an instruction to shut off the gas supply to each gas meter 16 via the communication line I / F unit 70, and ends the present gas supply control processing program. . On the other hand, when each gas meter 16 receives the above shutoff instruction information and does not shut off the supply of gas to the customer 14, the gas meter 16 performs the same process as step 112 and returns the gas to the customer 14 Shut off the supply of

  In FIG. 12 and FIG. 13, as an example, it derives from the SI value derived from the acceleration of 3 axes output from the acceleration sensor 46 of the gas meter 16E and the acceleration from 3 axes output from the acceleration sensor 78 of the governor control device 60. 6 shows the gas blocking state when the obtained SI value is less than the threshold value V1. Moreover, in FIG.12 and FIG.13, the SI value derived | led-out from the acceleration of 3 axis | shafts output from the acceleration sensor 46 of gas meters 16 other than the gas meter 16E is shown about the state which is more than threshold value V1 as an example.

  12 and 13 show, as an example, that the above-mentioned SI value of the gas meter 16E is a value equivalent to seismic intensity 5 and the above SI values of the gas meters 16A, 16B, 16I are values equivalent to seismic intensity 5 strong Indicates a state of Moreover, in FIG.12 and FIG.13, the said SI value of gas meter 16C, 16D, 16F, 16G, 16J is a value equivalent to seismic intensity 6 as an example, and said SI value of gas meter 16H is seismic intensity 6 It shows a state of strong value. Moreover, in FIG.12 and FIG.13, the said SI value of the governor control apparatus 60 has shown the state which is a value equivalent to seismic intensity 5 as an example.

  Further, FIG. 12 shows a state where the governor control device 60 controls the shutoff of the gas supply using only the output from the acceleration sensor 78. Further, as shown in FIG. 13, in addition to the output from the acceleration sensor 78, the governor controller 60 also uses the output from the acceleration sensor 46 of each gas meter 16 in the area 12 as in the present embodiment. It shows a state in which the shutoff control has been performed. Further, FIG. 13 shows a state in which the governor control device 60 has transmitted the shutoff instruction information to each gas meter 16.

  As shown in FIG. 12, when the governor controller 60 controls the shutoff of the gas supply using only the output from the acceleration sensor 78, the governor controller 60 does not shut off the gas supply to each gas meter 16 .

  On the other hand, as shown in FIG. 13, when the governor control device 60 controls the shutoff of the gas supply also using the output from the acceleration sensor 46 of each gas meter 16 in the area 12, each gas meter from the governor control device 60 The supply of gas to 16 is shut off. Further, since the cutoff instruction information is transmitted from the governor control unit 60 to each gas meter 16, the supply of gas via the gas meter 16E which has not detected that the SI value has become the threshold value V1 or more is also blocked.

  As described above, according to the present embodiment, the same effects as those of the first embodiment can be obtained. Further, according to the present embodiment, not only the supply of gas from the governor control unit 60 to each gas meter 16 is shut off, but the governor control unit 60 transmits the above-mentioned shutoff instruction information to each gas meter 16. Thus, gas leakage is further suppressed as compared to the case where only the gas supply from the governor control device 60 to each gas meter 16 is shut off.

  In the present embodiment, in the security information transmission processing program, each gas meter 16 also performs processing for blocking the supply of gas, but the present invention is not limited to this. For example, each gas meter 16 does not perform the process of blocking the supply of gas in the security information transmission process, but supplies the gas only when the cutoff instruction information transmitted in the process of step 160 of the gas supply control process is received. You may block it. In this case, the processing of step 112 of the security information transmission processing program becomes unnecessary.

  Further, in the present embodiment, the governor control device 60 transmits the shutoff instruction information to each gas meter 16. However, the present invention is not limited to this. The governor control device 60 does not transmit the shutoff instruction information to each gas meter 16 May be In this case, the process of step 160 of the gas supply control process program becomes unnecessary.

  Further, in the present embodiment, the gas meter 16 determines whether to shut off the gas supply using only the output from each sensor of the own device, but the present invention is not limited to this. Also in the present embodiment, as in the first embodiment, the gas meter 16 also shuts off the supply of gas using the information that is determined by the other gas meter 16 to indicate a security abnormality and is transmitted. It may be determined whether or not.

  Further, although not particularly mentioned in the present embodiment, since the influence of the shutoff of the gas supply by the governor control device 60 is larger than that of the shutoff of the gas supply by each gas meter 16, the process of the step 156 is performed. The predetermined ratio used for the determination may be a stricter value (that is, a larger value) than that of the first embodiment.

  Also, for example, when the governor control device 60 determines that the disaster is a large-scale disaster, for example, when the SI value of the governor control device 60 is equal to or greater than the seismic intensity 7 value, the information transmitted from each gas meter 16 is used. Alternatively, the supply of gas to each gas meter 16 may be shut off.

Third Embodiment
First, the configuration of a gas supply control system 10C according to the present embodiment will be described with reference to FIG. Components in FIG. 14 having the same functions as those in FIG. 8 are assigned the same reference numerals as those in FIG. As shown in FIG. 14, a gas supply control system 10C according to the present embodiment is provided at a management center (not shown), and controls a plurality of governor control devices 60 installed one by one in a plurality of areas 12A to 12L. The management apparatus 200 is provided to manage. The configurations of the governor controller 60 in each of the areas 12A to 12L and the gas meter 16 installed in the customer 14 are the same as those of the second embodiment, and thus the description thereof is omitted here. Moreover, in FIG. 14, illustration of the customer 14 and the gas meter 16 in area | region 12 B-12 L is abbreviate | omitted in order to avoid complication. Moreover, below, when it is not necessary to distinguish area 12A-12L, the alphabet of the code | symbol end is abbreviate | omitted.

  The management apparatus 200 according to the present embodiment can mutually transmit and receive data by wired communication with each governor control apparatus 60. Communication between the management device 200 and the governor control device 60 may be wireless communication.

  Next, with respect to the governor control device 60 according to the present embodiment, only portions different from the governor control device 60 according to the second embodiment will be described. The governor control device 60 according to the present embodiment causes the CPU 62 to perform transmission and reception of communication data via the communication line I / F unit 70 in addition to the gas meter 16, and also performs the management device 200.

  Next, with reference to FIG. 15, the main configuration of the electrical system of the management apparatus 200 according to the present embodiment will be described. As shown in FIG. 15, the management apparatus 200 according to the present embodiment includes a CPU 202 that controls the overall operation of the management apparatus 200, and a ROM 204 in which various programs, various parameters, and the like are stored in advance. The management apparatus 200 further includes a RAM 206 used as a work area or the like when the CPU 202 executes various programs, and a non-volatile storage unit 208 such as a flash memory.

  Also, the management apparatus 200 includes a communication line I / F unit 210 that transmits and receives communication data to and from an external apparatus, a display unit 212 that notifies the user of various information related to the operation status of the management apparatus 200, An operation unit 214 that receives an instruction is provided. The CPU 202, the ROM 204, the RAM 206, the storage unit 208, the communication line I / F unit 210, the display unit 212, and the operation unit 214 are connected to one another via a bus 216.

  With the above configuration, the management apparatus 200 according to the present embodiment causes the CPU 202 to access the ROM 204, the RAM 206, and the storage unit 208, and transmit and receive communication data via the communication line I / F unit 210. Further, the management apparatus 200 causes the CPU 202 to display various information on the display unit 212 and acquire various data via the operation unit 214.

  Next, the operation of the gas supply control system 10C according to the present embodiment will be described with reference to FIG. 16 and FIG. FIG. 16 is a flow chart showing the flow of processing of the gas supply control processing program executed by the CPU 62 when, for example, the power of the governor control device 60 is turned on. Also, the gas supply control processing program is installed in advance in the ROM 64. Also, steps in FIG. 16 that execute the same processes as in FIG. 11 are assigned the same step numbers as in FIG. 11, and descriptions thereof will be omitted. On the other hand, FIG. 17 is a flowchart showing the flow of processing of a gas supply management processing program executed by the CPU 202 when, for example, the power of the management device 200 is turned on. Also, the gas supply management processing program is installed in advance in the ROM 204. Further, the operation of the gas meter 16 is the same as that of the second embodiment (see FIG. 10), so the description here is omitted.

  In step 162 of FIG. 16, the CPU 62 transmits type information indicating the type of security information determined to block the gas supply in the process of step 156 to the management apparatus 200 via the communication line I / F unit 70. Then, the present gas supply control processing program ends. In addition to the type information, the CPU 62 also transmits position information indicating the position of the area 12 where the governor control unit 60 is installed to the management unit 200 via the communication line I / F unit 70.

  Specifically, for example, the CPU 62 determines that the number of gas meters 16 that detect that the SI value is the threshold value V1 or more in the process of step 156 is a predetermined ratio or more of the number of all gas meters 16 in the area 12. When it is determined that the supply of gas is shut off, information indicating that the security abnormality is due to the SI value is transmitted to the management device 200 as the type information.

  Also, for example, when the CPU 62 determines that the supply of gas is interrupted because the number of gas meters 16 that have detected the sensor abnormality signal in the process of step 156 is equal to or more than a predetermined ratio of the number of all gas meters 16 in the area 12 The information indicating that the security abnormality is due to the sensor abnormality of the ultrasonic sensor 48 is transmitted to the management apparatus 200 as the type information. Similarly, the CPU 62 is also based on each information on the angle of inclination, long cycle SI value, body temperature, difference between body temperature and gas temperature, fire occurrence signal, humidity, and pressure of gas. When it is determined to block the supply of the type information, the type information is transmitted to the management device 200.

  In step 250 of FIG. 17, the CPU 202 receives the type information and the position information transmitted from the governor control device 60 by the process of step 162. In the next step 252, the CPU 202 determines whether it is time to finish the reception of the type information transmitted from the governor control device 60 or not. If the determination is negative, the CPU 202 returns to the process of step 250, but if the determination is positive, the CPU 202 proceeds to step 254. In the present embodiment, the timing at which the management apparatus 200 receives the information transmitted from all the governor control apparatuses 60 to be managed and the type information from all the governor control apparatuses 60 as the timing for ending the above reception Even when the type information is received from the governor control device 60 first, the timing at which a certain period has elapsed is applied.

  In step 254, the CPU 202 uses the type information and the position information received in the process of step 250, and among all the governor control devices 60 to be managed, there is a governor control device 60 that has not transmitted the type information. It is determined whether to do. If the determination is negative, the CPU 202 considers that all the governor control devices 60 to be managed have cut off the supply of gas, and returns to the process of step 250. On the other hand, when the determination is a positive determination, the CPU 202 proceeds to the process of step 256.

  In step 256, the CPU 202 sets any one of the governor control devices 60 that has determined that the type information has not been transmitted in the process of step 254 above as a processing target (hereinafter referred to as "processing target device"). It is determined whether the type information is transmitted from at least one of the governor control devices 60 installed in the area 12 adjacent to the area 12 installed. When the present step 256 is performed for the second time or later, the governor control device 60 which has not been subjected to the processing until then is set as the processing target device.

  Note that the CPU 202 is not limited to whether or not the type information is transmitted from at least one of the governor control devices 60 in the area adjacent to the area 12 where the processing target device is installed, and all governors adjacent to the area 12 It may be determined whether the type information is transmitted from the control device 60. Further, the number of governor control devices 60 adjacent to each other for determining whether or not the type information is transmitted may be appropriately determined in accordance with the required determination accuracy or the like. If the determination is positive, the CPU 202 proceeds to the process of step 258. If the determination is negative, the CPU 202 proceeds to the process of step 260 without executing the process of step 258.

  In step 258, the CPU 202 sends shutoff instruction information instructing the shutoff of the gas supply to the processing target device. When the processing target device receives the shutoff instruction information, it performs the same processing as the above steps 158 and 160.

  In step 260, the CPU 202 determines whether or not the processing of step 256 and step 258 has been performed for all governor control devices 60 that have determined that the type information has not been transmitted by the processing of step 254. If the determination is negative, the CPU 202 returns to the process of step 256, but if the determination is positive, the CPU 202 proceeds to step 262.

  In step 262, the CPU 202 determines whether or not a predetermined timing has arrived as the timing for ending the present gas supply management processing program. Note that as the end timing, a timing at which an input for instructing the end of execution of the program is performed by the user via the operation unit 214 may be applied. If the determination is negative, the CPU 202 returns to the process of step 250, but if the determination is positive, the gas supply management processing program ends.

  In FIG. 18 and FIG. 19, as an example, the governor control device 60 in the regions 12A, 12D to 12F, 12H, 12I determines that the fire is occurring based on the information transmitted from each gas meter 16 It shows. FIG. 18 shows a state where the governor control device 60 individually controls the shutoff of the gas supply. Further, FIG. 19 shows a state where the management apparatus 200 determines whether to shut off the gas supply based on the type information transmitted from the plurality of governor control apparatuses 60 as in the present embodiment.

  As shown in FIG. 18, when the governor control device 60 individually controls the shutoff of the gas supply, the governor control device 60 of the area 12G does not shut off the gas supply. On the other hand, as shown in FIG. 19, the governor control device 60 in the areas 12A, 12D to 12F, 12H, 12I adjacent to the area 12G determines that a fire has occurred. Then, when the management device 200 determines whether to shut off the gas supply based on the type information transmitted from each governor control device 60, the management device 200 controls the governor control device 60 of the area 12G based on the type information. Send the blocking instruction information to Therefore, the gas supply from the governor control device 60 in the area 12G where it is not determined that a fire has occurred is shut off.

  In addition, in FIG.18 and FIG.19, although the fire was demonstrated as an example, it does not restrict to this. For example, the same applies to other cases where a damaged area gradually spreads due to a large scale disaster etc., such as when it is judged by the humidity sensor 54 that water has infiltrated into the gas meter 16 or gas pipe (i.e. flood) .

  As described above, according to the present embodiment, the same effects as those of the first and second embodiments can be obtained. Further, according to the present embodiment, the management apparatus 200 determines whether to shut off the gas supply based on the information transmitted from the plurality of governor control apparatuses 60. This makes it possible to accurately shut off the gas supply as compared with the case where each governor control device 60 individually determines whether to shut off the gas supply.

  In the present embodiment, the management device 200 receives the type information from each governor control device 60, but the present invention is not limited to this. For example, similarly to the governor control device 60 according to the second embodiment, the information may be received from all the gas meters 16 installed in the area 12 to be managed by the management device 200. In this case, similar to the governor control device 60 according to the second embodiment, the management device 200 determines whether to shut off the gas supply based on the information received from the gas meter 16 for each area 12. Good.

  As mentioned above, although each embodiment was described, the technical scope of the present invention is not limited to the range given in each above-mentioned embodiment. Various changes or improvements can be added to the above-described embodiments without departing from the scope of the invention, and a mode in which the changes or improvements are added is also included in the technical scope of the present invention.

  Further, the above embodiments do not limit the invention according to the claims, and all combinations of the features described in the embodiments are essential to the solution means of the invention. Not necessarily. The embodiments described above include inventions of various stages, and various inventions are extracted by a combination of a plurality of disclosed constituent elements. Even if some configuration requirements are deleted from the total configuration requirements shown in each embodiment, a configuration from which some configuration requirements are removed can be extracted as the invention as long as the effects can be obtained.

  For example, in each of the above-described embodiments, the case where the supply of gas is shut off when at least one of the plurality of types of safety information meets the determination criteria has been described, but the present invention is not limited to this. . For example, the gas supply may be shut off when two or more of the plurality of types of safety information satisfy the determination criteria. In this case, for example, the SI value, the angle of the inclination, the long cycle SI value, the output from the temperature sensor 50, the output from the fire sensor 52, the output from the ultrasonic sensor 48, the output from the humidity sensor 54, etc. An embodiment is exemplified in which the supply of gas is shut off when a plurality of correlated pieces of security information satisfy the judgment criteria.

  Further, although not particularly mentioned in the above embodiments, the automatic return of the gas supply may be controlled after the gas supply is shut off. In this case, even if the gas meter 16 shuts off the gas supply and the output from each sensor does not indicate a security abnormality, it is determined that the other gas meter 16 indicates a security abnormality and it is transmitted. When it is determined that the supply of gas is shut off by the same processing as the processing of step 110 of the first embodiment based on the above information, a mode of performing control for prohibiting the automatic return is exemplified.

  Also, for example, even if the output of the acceleration sensor 78 does not indicate a security abnormality after the governor control device 60 cuts off the supply of gas, each gas meter 16 determines that the security abnormality is indicated. In the case where it is determined that the supply of gas is shut off by the same processing as step 156 of the second embodiment based on the information transmitted, it is exemplified that control to prohibit the automatic return is performed.

  In each of the above embodiments, the case where various programs are installed in advance in the ROM 32, the ROM 64, and the ROM 204 has been described, but the present invention is not limited to this. For example, the various programs may be provided by being stored and provided in a storage medium such as a compact disk read only memory (CD-ROM) or provided via a network.

  Furthermore, in each of the above embodiments, the case of realizing the respective processes of the gas supply control process, the security information transmission process, and the gas supply management process by software configuration using a computer by executing a program has been described. However, the present invention is not limited to this. For example, the respective processes may be realized by a hardware configuration or a combination of the hardware configuration and the software configuration.

  In addition, the configurations of the gas supply control system, the gas meter, the governor control device, and the management device described in the above embodiments (see FIGS. 1, 2, 8, 9, 14, 15) are merely examples. Needless to say, unnecessary portions may be deleted or new portions may be added without departing from the scope of the present invention.

  Further, the flow of processing of various programs described in each of the above embodiments (see FIGS. 3, 10, 11, 16, and 17) is also an example, and it is unnecessary within the scope of the present invention. It goes without saying that the steps may be deleted, new steps may be added, or the processing order may be changed.

10A, 10B, 10C: gas supply control system, 12: area, 14: customer, 16: gas meter, 30, 62, 202: CPU, 38, 70, 210: communication line I / F unit, 46, 78: acceleration Sensor, 48: Ultrasonic sensor, 50: Temperature sensor, 52: Fire sensor, 54: Humidity sensor, 56: Pressure sensor, 60: Governor control device, 200: Management device

Claims (8)

Among a plurality of gas meters installed in each of a plurality of customers in a predetermined range of areas and each provided with a plurality of types of sensors, the output of each of the plurality of types of sensors provided in the own gas meter Acquisition means to acquire,
A first determination unit that determines whether at least one of a plurality of types of security information obtained from the output of each of the plurality of types of sensors acquired by the acquisition unit indicates a security abnormality;
A receiving unit configured to receive security information that is determined to indicate a security abnormality and transmitted from another gas meter included in the plurality of gas meters;
Determined by the security information determined by the first determination means to indicate security abnormality of the own device, and the security information determined by the receiving means to indicate the security abnormality of the other gas meter received. The number of gas meters is determined based on the output of each of the plurality of types of sensors when it is determined that the supply of gas is shut off when the number of gas meters is equal to or greater than a predetermined ratio of the number of gas meters in the area. A second determination unit that performs the determination after at least one of the weighting of and the change of the predetermined ratio is performed;
A control unit that performs control to shut off the supply of gas to the customer installed in the apparatus when it is determined by the second determination unit to shut off the supply of gas;
Gas supply control device equipped with: The plurality of types of security information include a value indicating the magnitude of the earthquake at the installation position of the gas meter, an angle of inclination of the ground at the installation position, a value indicating vibration of a long period of the installation position, and An output from an acoustic sensor, a temperature of the gas meter, a temperature of a gas in the gas meter, an output of a fire sensor for detecting whether a fire occurs at the installation position, a humidity in the gas meter, and a temperature in the gas meter Containing two or more of the gas pressure,
The second determination means indicates the number of gas meters whose value indicating the magnitude of the earthquake is equal to or greater than a first threshold, the number of gas meters whose angle of inclination is equal to or greater than a second threshold, and a value indicating vibration of the long period. The number of the gas meters having a third threshold or more, the number of the gas meters for which a sensor abnormality signal indicating abnormality of the sensor is output from the ultrasonic sensor, the number of the gas meters having a temperature of the gas meter equal to or greater than a fourth threshold The number of gas meters where the difference between the temperature of the gas meter and the temperature of the gas is equal to or greater than a fifth threshold, the number of gas meters for which a fire occurrence signal indicating that a fire occurred from the fire sensor is output, the humidity The number of the gas meters which is equal to or greater than a sixth threshold, and the gas pressure whose pressure is outside the predetermined range of the normal value of the gas pressure. At least one of the number of coater, but wherein when the predetermined ratio or more, the gas supply control device and determines claim 1, wherein interrupting the supply of gas. The gas supply control device according to claim 2, wherein the second determination unit performs the determination by decreasing the predetermined ratio as the frequency of reception by the reception unit for each type of the security information becomes higher. The second determination means performs the determination by setting a larger weight value for the number of gas meters as the reception frequency by the reception means for each type of the security information becomes higher, and performing the determination. The gas supply control apparatus of Claim 2 or Claim 3. The second determination means has a value indicating the magnitude of the earthquake, an angle of the inclination, a value indicating vibration of the long period, a temperature of the gas meter, and a large difference between the temperature of the gas meter and the temperature of the gas The gas supply control device according to any one of claims 2 to 4, wherein the determination is performed by decreasing the predetermined ratio as it is a value. The second determination means has a value indicating the magnitude of the earthquake, an angle of the inclination, a value indicating vibration of the long period, a temperature of the gas meter, and a large difference between the temperature of the gas meter and the temperature of the gas The gas supply control device according to any one of claims 2 to 5, wherein the determination is performed by setting a larger weight value with respect to the number of gas meters as the value is set and performing weighting. 7. The information processing apparatus according to claim 1, further comprising transmission means for transmitting the security information determined by the first determination means to indicate the security abnormality of the own device to the other gas meters included in the plurality of gas meters. The gas supply control device according to any one of the above. Among a plurality of gas meters installed in each of a plurality of customers in a predetermined range of areas and each provided with a plurality of types of sensors, the output of each of the plurality of types of sensors provided in the own gas meter Acquired,
  It is determined whether or not at least one of a plurality of types of security information obtained from the outputs of each of the plurality of types of acquired sensors indicates a security abnormality,
  From the other gas meters included in the plurality of gas meters, it is determined that the security abnormality is indicated, and the transmitted security information is received,
  The number of gas meters determined by the security information determined to indicate a security abnormality for the own device and the security information determined to indicate a security abnormality for the other gas meter received is within the area. When it is determined that the supply of gas is shut off when the ratio is equal to or more than a predetermined ratio of the number of gas meters, weighting of the number of gas meters and change of the predetermined ratio are performed based on the output of each of the plurality of types of sensors. After performing at least one of the
  When it is determined that the supply of gas is shut off, control is performed to shut off the supply of gas to the customer where the device is installed.
  Control method of the gas supply control device including that.

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