JP2023167534A - District Governor Monitoring System - Google Patents

Abstract

To install water inversion sensors in all governors in which water immersion is expected in a hazard map and to determine the presence or absence of water immersion in the individual governors.SOLUTION: A water immersion sensor 38 and a pressure sensor 40 are installed at an automatic stop type district governor 24A (a first governor 24A), a stop determination water immersion sensor 52 is installed at a manual stop type district governor 24B (a second governor 24B) in addition to the water immersion sensor 38 and the pressure sensor 40 if necessary. The district governor 24 classifies marks into a stop necessary mark 92A, an operation continuation mark 92B and an in-stop governor mark 92C on the basis of an analysis result, and displays a governor flood situation image 78B. It is thereby possible to quickly detect a district governor 24 that needs to be stopped, to know the governor from a display mark (a stop necessary mark 92A) in the district governor flood situation image 78B, and to quickly notify a jurisdictional department site 60 of it.SELECTED DRAWING: Figure 7

Description

TECHNICAL FIELD This invention relates to district governor monitoring systems. In detail, it relates to a district governor monitoring system that allows district governors to "visualize" monitoring and quickly grasp the situation where above-ground flooding above a certain level may affect gas supply.

Although most of the gas pipeline network is not susceptible to water damage, some above-ground gas-related facilities are subject to constant flooding, making pressure control difficult and requiring emergency measures such as shutting down the district governor. It may be necessary.

If above-ground gas-related facilities are flooded to a certain level, it may affect the gas supply, so we need to monitor the supply status of the entire gas pipeline network, quickly identify and understand the cause, and take emergency measures when an abnormality occurs. is needed.

In the conventional gas supply control system, when the district governor's district supply judgment control unit detects an SI value of a predetermined level or higher with an SI sensor, it controls the wireless communication unit and issues the detected SI value or a seismic cutoff command. is transmitted wirelessly to gas meters within the area of the own device (for example, see Patent Document 1).

Further, Patent Document 2 describes providing a flow rate measuring device capable of measuring the flow rate of fluid with high precision in a governor.

The conventional technology described in Patent Document 1 is a governor monitoring system equipped with an information collection means capable of collecting governor information related to the operation of governors provided at various locations in a fluid supply network, and is compatible with a plurality of governor installation positions. Earthquake information collected by the earthquake information collection means from multiple governors when earthquake information that satisfies preset earthquake mode transition conditions is collected. It is equipped with an earthquake governor information collection means that automatically collects governor information according to the earthquake, and has the advantage of being able to respond quickly and accurately in the event of an earthquake.

Japanese Patent Application Publication No. 2002-188800 Japanese Patent Application Publication No. 2004-212109

However, if one governor A is flooded and the pressure rises, if it is connected to another governor B by a conduit, the pressure of the other governor B that is not flooded will also rise, so only the pressure that has been monitored up to now will increase. Therefore, it is impossible to make accurate judgments or grasp the situation. Specifically, it is not possible to determine whether one governor A or the other governor B has been flooded. Such problems cannot be solved even by using the system of Patent Document 1, and it will take time to take prompt emergency measures.

An object of the present invention is to obtain a district governor monitoring system that can determine whether or not each governor is flooded by installing flood sensors in all governors that are assumed to be flooded in a hazard map.

The district governor monitoring system according to the present invention includes underground equipment including gas pipes buried underground and above-ground equipment including a plurality of district governors installed at a plurality of gas supply bases above ground. Each of the plurality of district governors is equipped with a plurality of flood sensors that detect a state of flooding to the extent that the gas supply is hindered, and a two-dimensional map of the area where the plurality of gas supply bases are scattered is displayed on the display unit. and a real-time display control mode in which the positions of the plurality of flood sensors are superimposed on the two-dimensional map displayed on the display unit, and the detection status of each of the plurality of flood sensors is added in real time. and an executable control unit.

According to the present invention, for example, flooding above a certain level above ground may affect the gas supply, so it is possible to monitor the supply status of the entire gas pipeline and quickly identify and understand the cause when an abnormality occurs. From the perspective of fulfilling the role of emergency measures, it is important for district governors to establish a system to visualize the flood situation as early as possible.

In order to solve the above-mentioned problems, the present invention has constructed a district governor monitoring system that can determine whether or not each governor is flooded by installing flood sensors in all the governors predicted to be flooded according to the hazard map.

For example, by distributing flood sensors on a map on a two-dimensional plane, it can be visualized, and pressure information from district governors, detection information from flood sensors, hazard maps, river flooding risks, etc. can be superimposed on the map. , and can promptly execute emergency measures judgments and emergency measures actions.

The present invention is characterized in that the degree of detection status of each of the plurality of water immersion sensors is identified in a visual recognition form including at least one of a lighting state and a display color.

The present invention is characterized in that the two-dimensional map is a hazard map that predicts damage caused by natural disasters and displays the range of the damage.

The present invention is characterized in that when a disaster occurs, warning information including at least one of a river flooding risk, a weather warning, a flood risk, and a landslide risk is displayed superimposed on the two-dimensional map.

In the present invention, the plurality of district governors are classified into a first governor that is equipped with a safety mechanism that automatically stops gas supply, and a second governor that is not equipped with the safety mechanism, and the second governor The apparatus is characterized in that, in addition to the water immersion sensor, a water immersion sensor for stop determination is provided for determining whether or not it is necessary to stop gas supply due to water immersion.

In the present invention, in addition to the real-time display control mode, the control unit executes a river flooding prediction simulation based on weather forecast information, and information on the flooding level of each of the plurality of district governors under the condition of the flooding prediction simulation. and the height position information of each of the plurality of water immersion sensors, a predictive simulation display control mode is provided that predicts and notifies water intrusion before any of the plurality of water immersion sensors detects water intrusion. It is a feature.

As explained above, according to the present invention, it is possible to install flood sensors in all the governors that are assumed to be flooded in the hazard map, and it is possible to judge whether or not each governor is flooded.

It is a schematic diagram of a gas supply line for supplying city gas to consumers. 1 is a schematic diagram of a control network of a disaster monitoring system including a command center according to the present embodiment. This is a functional block specialized for monitoring the status of the district governor where a disaster has occurred, and is executed on the management server of the command center. It is a front view of the 2nd governor which is a manual stop type district governor. This is a disaster view main image displayed on a monitor that includes normal monitoring by the monitoring processing unit. 7 is a front view of an image showing an example of a selection bar group 80. FIG. It is a front view showing an example of a district governor flood situation image in which the position of the district governor is superimposed and the state of the district governor is displayed in a visually discernable manner. It is a control flowchart which shows the main routine of the state monitoring control of the district governor based on this Embodiment. 9 is a control flowchart showing a disaster display processing routine that is executed by interrupting the main routine of FIG. 8;

FIG. 1 is a schematic diagram of a gas supply line for supplying city gas to consumers.

High pressure gas is converted into city gas at an LNG base 12 and transported to the governor station (GS) 10 by a high pressure gas pipe 14 buried underground. Note that "high pressure" is a notation that indicates a relative difference from "medium pressure" and "low pressure" described later, and does not indicate a specific range of pressure values.

A valve station 16 is interposed in the high-pressure gas pipe 14 . The valve station 16 has the role of stopping gas supply to the governor station 10, for example, in an emergency.

The governor station 10 also has a pressure adjustment function, and after adjusting high pressure gas to medium pressure gas, the gas is supplied to the gas tank 20 through an upstream medium pressure gas pipe 18 buried underground. The gas tank 20 temporarily stores intermediate pressure gas.

The intermediate pressure gas stored in the gas tank 20 is supplied to a plurality of district governors 24 via a downstream intermediate pressure gas pipe 22.

Although FIG. 1 shows a single district governor 24, the downstream intermediate pressure gas pipe 22 that is piped from the gas tank 20 is branched in the middle, and each of the branch pipes is piped to the district governor 24. has been done. Further, each of the plurality of district governors 24 is placed in a facility 26 constructed on the ground.

A valve station 28 is interposed in the downstream intermediate pressure gas pipe 22 before being branched. The valve station 28 has the role of stopping the gas supply to the plurality of district governors 24, for example, in an emergency. Note that the valve station 28 may exist after branching.

The district governor 24 has a pressure adjustment function, and after adjusting medium pressure gas to low pressure gas, the gas is supplied to a gas meter 34 in a general household 32 via a low pressure gas pipe 30 buried underground.

Here, the district governor 24 has a function of automatically keeping the pressure of the low-pressure gas constant regardless of the increase or decrease in the amount of gas used in the general household 32. Thereby, the general household 32 can be supplied with low-pressure gas at a stable pressure.

Although the gas meter 34 is of a type that is visually read by a meter reader, it is equipped with a wireless cordless device, for example, and has a function of constantly transmitting information such as meter readings to a jurisdiction area (not shown). Good too.

Here, the governor station 10, the valve station 16, the district governor 24, and the valve station 28 are controlled by a command center 36, such as gas pressure adjustment and supply availability.

In particular, the district governors 24, which are the sources of low-pressure gas to general households 32, are scattered at multiple locations even within a single jurisdictional area, and pressure management is important.

In addition, multiple district governors 24 have a structure that automatically stops the valve or a structure that manually stops the valve in the event of flooding, but regardless of which structure the valve is closed and the supply of low-pressure gas is stopped. There is a need to. For this reason, the command center 36 collectively manages the status of the plurality of district governors 24 scattered around. Note that some district governors 24 have a structure that does not include a safety mechanism that automatically stops gas supply (for example, a second governor 24B described later).

As a management system for the district governors 24, the command center 36 visually identifies the operating status (in operation or stopped) of each district governor 24 on a two-dimensional map and the necessity of stopping, especially in the event of a disaster. We constructed a disaster monitoring system that displays the district governor flood situation image 78B (see FIG. 7, details will be described later) by superimposing a hazard map showing the disaster (particularly flooding) situation.

(Types of 24 district governors to be monitored)
First, the district governor 24 to be monitored will be explained.

The district governor 24 monitored by the command center 36 of this embodiment can be broadly classified into two types: an automatic stop type that closes the valve by automatic operation (including remote control), and an automatic stop type that closes the valve by automatic operation (including remote control) and one that has a worker go to the site and manually close the valve. Consists of manual stop type and close. In the following, when distinguishing between the two, as shown in FIG. 2, the automatic stop type will be referred to as the district governor 24A (first governor 24A), and the manual stop type will be referred to as the district governor 24B (second governor 24B). For reference, it is also possible to attach a safety device to the second governor 24B to make it an automatic stop type.

As an example, FIG. 4 shows the configuration of a manual stop type district governor 24B (hereinafter referred to as second governor 24B).

The second governor 24B includes a governor main body 42, an auxiliary governor 44, a medium pressure auxiliary governor 46, a low pressure auxiliary governor 48, and a safety device 50. In the second governor 24B, pressure is regulated by diaphragms (not shown) provided in each of the governor main body 42, the auxiliary governor 44, the medium pressure auxiliary governor 46, the low pressure auxiliary governor 48, and the safety device 50. It is monitored by a sensor 40.

More specifically, it is managed by the downstream gas pressure adjusted by the governor body 42. In other words, the pressure sensor 40 measures the adjusted pressure and is not directly controlled based on the measured value of the pressure sensor 40.

The structure of the second governor 24B (manual stop type district governor 24B) is basically the same as the automatic stop type district governor 24A (see Fig. 2) in that it detects atmospheric pressure and controls low pressure. Similarly, the flooded area often occurs at the mating surfaces of the casing that accommodates the diaphragm (see arrow A in FIG. 4). In addition,

The second governor 24B shown in FIG. 4 is positioned at a height H1 in order from the lower level, assuming that the height H0 of the floor surface 26G (GL surface) of the installed facility 26 is used as a reference (for example, ±0 cm). The diaphragm of the auxiliary governor 44 is located, the diaphragm of the safety device 50 is located at the height H2, the diaphragm of the governor body 42 is located at the height H3, and the medium pressure auxiliary governor 46 is located at the height H4. and the diaphragm of the low pressure auxiliary governor 48 are located (H0<H1<H2<H3<H4).

Note that the floor surface 26G (height H0 of the GL surface) is generally raised by a predetermined height above the ground surface (height of the land).

A flood sensor 38 is attached to the floor surface 26G (GL surface) of the facility 26. The flood sensor 38 is attached not only to the second governor 24B but also to the automatic stop type district governor 24A at a position on the floor surface 26G (GL surface) of the facility 26.

In addition, in the second governor 24B shown in FIG. 4, the flood sensor 38 is installed separately from the flood sensor 38 in order to stop the governor by manual operation and to determine whether or not a worker needs to go to the site. , a stoppage determination water immersion sensor 52 is provided to detect water immersion at the limit of whether or not manual operation is required.

The level position of the stoppage determination water immersion sensor 52 in the second governor 24B in FIG. Based on the position, the height is set at a predetermined height (for example, approximately between the height H1 and the height H2 shown in FIG. 4). The height position of the stoppage determination water immersion sensor 52 depends on the installation situation (the height of the diaphragm) in the facility 26, and is not limited to this, but is at least higher than the water immersion sensor 38 (GL level). It is also in a high position.

Detection information from the water immersion sensor 38, pressure sensor 40, and stoppage determination water immersion sensor 52 is sent to the command center 36 and managed collectively.

(Disaster monitoring system control network by command center 36)
FIG. 2 is a schematic diagram of a control network of the disaster monitoring system 54 including the command center 36 according to the present embodiment.

A management server 36S provided in the command center 36 is connected to a network 56 such as the Internet. Each server (not shown) of an external disaster prevention related site 58 is connected to the network 56 . External disaster prevention related sites 58 include, for example, the Geospatial Information Authority of Japan, the National Institute of Disaster Prevention, and the Japan Meteorological Agency.The management server 36S preliminarily downloads hazard maps, digital elevation topographic maps, river flooding risks, etc. from the external disaster prevention related sites 58. Information such as weather information, flood risk, and landslide risk is obtained and utilized by the management server 36S. Note that this does not negate the ability to obtain various information online in real time. For example, river flooding risk, weather information, flooding risk, and landslide risk are linked online, and information is obtained in advance for hazard maps and digital elevation topographic maps.

In addition, the network 56 is connected to the server of the responsible department site 60, and based on commands from the management server 36S of the command center 36, actual response at the disaster site (site situation monitoring, worker on-site dispatch, etc.). This embodiment includes a valve closing operation by manual operation of the district governor 24B at the time of flooding.

The network 56 is connected to district governors 24 (an automatic stop type district governor 24A (first governor 24A) and a manual stop type district governor 24B (second governor 24B)) that are scattered in various places. .

The command center 36 acquires detection information of the water immersion sensor 38 and the pressure sensor 40 from the first governor 24A via the network 56. Further, the command center 36 acquires detection information of the flood sensor 38, the pressure sensor 40, and the stop determination flood sensor 52 from the second governor 24B via the network 56.

FIG. 3 shows a functional block specialized for monitoring the status of the district governor 24 where a disaster has occurred, which is executed in the management server 36S of the command center 36. Note that each control block does not limit the hardware configuration of the management server 36S, and a part or all of it may be executed as a disaster monitoring program.

Detection information of the flood sensor 38 and pressure sensor 40 of the district governor 24A, and detection information of the flood sensor 38, pressure sensor 40, and stoppage determination flood sensor 52 of the district governor 24 are collected by the information collection unit 62, respectively. .

The information collection unit 62 is connected to the information analysis unit 64, and the information analysis unit collects the position (coordinates, etc.) of each district governor 24 and detection information of the flood sensor 38, pressure sensor 40, and stoppage determination flood sensor 52. 64.

The information analysis unit 64 analyzes the operating status, pressure, and flood status based on the detection information of the flood sensor 38, pressure sensor 40, and stop determination flood sensor 52, and uses the results together with the position information of the district governor 24. , is sent to the monitoring processing unit 66. The analysis information analyzed by the information analysis unit 64 is at least the operation/stop status of the district governor 24 and current guidelines, and may also include past change rates, future predictions, and the like.

The monitoring processing unit 66 determines whether there is a pressure abnormality or a water intrusion abnormality based on the analysis information received from the information analysis unit 64. Note that during normal times, the monitoring processing unit 66 monitors abnormalities of the district governor 24 alone, such as failures and malfunctions, rather than abnormalities caused by the occurrence of a so-called wide-area disaster.

In the monitoring processing unit 66, based on the detection information obtained from the information analysis unit 64, if an abnormality such as pressure or flooding occurs in the facility 26 where each district governor 24 is installed, the monitoring processing unit 66 detects the abnormality in the district governor 24. Identify and notify the responsible department of the abnormality. In addition, the monitoring processing unit 66 constantly monitors disaster information collected from the external disaster prevention related site 58 by the external disaster prevention information collection unit 68 in preparation for a disaster.

Here, the information analysis section 64 is connected to the disaster determination section 70. The disaster determination unit 70 determines whether a disaster has occurred. Disaster determination by the disaster determination unit 70 may be determined independently by the command center 36, or may be determined based on a notification from public information. The command center 36 can make its own determination using, for example, pressure measured by various sensors installed in the district governor 24 or the like, flood data, and the like.

When the disaster determination unit 70 determines that a disaster has occurred, the disaster determination unit 70 causes the information analysis unit 64 and the hazard map acquisition unit 72 to perform a disaster occurrence interrupt process (see the flowchart in FIG. 9, details will be described later). instruct the execution of

The hazard map acquisition section 72 acquires a hazard map from the external disaster prevention information collected by the external disaster prevention information collection section 68 and sends the acquired hazard map to the superimposition processing section 74 .

The superimposition processing unit 74 acquires position information (coordinates, etc.) and analysis information of the district governor 24 from the information analysis unit 64.

The superimposition processing unit 74 specifies the position of the district governor 24 on the hazard map (particularly flood damage) expanded into a two-dimensional map based on the position coordinates.

The superimposition processing unit 74 displays a district governor flood damage situation image 78B (see FIG. 7, details will be described later) on the monitor 78 via the display control unit 76, in which a two-dimensional map, a hazard map, and the position and situation of the district governor 24 are superimposed. Display. Various information is displayed on the monitor 78, and the district governor flood situation image 78B is one of the displayed images.

(Monitor display image)
FIG. 5 is a disaster view main image 78A that is displayed on the monitor 78 and includes normal monitoring by the monitoring processing unit 66.

The disaster view main image 78A is composed of a rectangular selection bar group 80 and a map display screen 82 related to the item selected from the selection bar group 80 from top to bottom on the left end. Items in the selection bar group 80 include, for example, river flooding risk, weather information, flooding risk, and landslide risk, and when each item is selected, a map related to the item is displayed. A screen 82 is displayed.

FIG. 6 is a front view of an image showing an example of the selection bar group 80, in which "earthquake" or "flood damage" can be selected as the disaster main theme selection bar 80M. FIG. 6 shows the selection bar group 80 when water damage is selected.

The "flood disaster" selection bar group 80 includes a weather information bar 80A, a district governor observation information bar 80B, a risk information bar 80C, a traffic information bar 80D, an SNS disaster information bar 80E, and an external website bar 80F. . The purpose of each bar is as follows.

"Weather information bar 80A"
It is used to understand weather information such as precipitation forecasts in the service area.

“District Governor Observation Information Bar 80B”
Understanding the pressure distribution of the governor, determining whether to stop the second governor 24B, understanding the shut-off status of the first governor 24A, understanding the detection status of the flood sensor, and understanding the list of governors that have detected an abnormality.

"Risk information bar 80C"
Understanding the underlined risk distribution, understanding the risk distribution of flooding, understanding the risk distribution of landslides, and understanding weather information in the supply area.

"Traffic information bar 80D"
Understanding road congestion status

"SNS disaster information bar 80E and external website bar 80F"
SNS disaster information, access to external sites

(District Governor Flood Situation Image 78B)
In FIG. 7, the disaster determining unit 70 of FIG. This is an example of a district governor flood situation image 78B in which the conditions of No. 24 are displayed in a visually discernible manner.

In the district governor flood situation image 78B, areas are classified and displayed as rivers 84, bay areas 86, and land areas 88 (divisions based on administrative divisions). A hazard map 90 showing areas where flooding has occurred is displayed on this two-dimensional map screen.

The hazard map 90 in FIG. 7 is classified into areas with a relatively low degree of danger (shaded area in FIG. 7) and areas with a relatively high degree of danger (hatched area in a grid pattern in FIG. 7). It is possible to visually recognize that the danger level near 84 is high.

In addition, the positions of the district governors 24 installed at each base in the land area 88 are superimposed on the district governor flood situation image 78B so that they can be visually recognized.

Furthermore, each district governor 24 is classified and displayed as a stop required mark 92A, an operation continuation mark 92B, and a stopped governor mark 92C (a part of each is an indicator), and the status of the district governor 24 can be visually identified. It is possible.

For this reason, the command center 36, for example, compares the location coordinates of the district governor 24B with areas that are heavily flooded to stop the district governor 24B (second governor 24B), which requires a manual stop operation. Compared to specifying the required district governor 24B, the notification can be sent to the competent department site 60 (see FIG. 2) more quickly.

The operation of this embodiment will be explained below according to the flowcharts of FIGS. 8 and 9.

FIG. 8 is a control flowchart showing the main routine of the district governor status monitoring control according to the present embodiment. Note that this main routine is executed regardless of whether it is a normal situation or a disaster.

In step 100, information is collected from the district governor 24, and then the process moves to step 102 to execute a pressure abnormality determination process.

In the next step 104, a flooding abnormality determination process is executed, and the process moves to step 106.

In step 106, abnormality determination is performed. If it is determined in step 106 that there is an abnormality, the process moves to step 108 to identify the district governor 24 subject to the abnormality, then moves to step 110 to execute abnormality processing, and returns to step 100. The abnormality processing is automatically stopped in the case of the automatic stop type district governor 24A (first governor 24A). In the case of a manual stop type district governor 24B (second governor 24B), for example, the department in charge is notified of the abnormality and instructed to manually close the valve. Note that the second governor 24B may also have a structure in which it stops automatically.

On the other hand, if it is determined in step 106 that there is no abnormality, the process moves to step 112 and it is determined whether a disaster has occurred.

If the determination in step 112 is negative, that is, if it is determined that no disaster has occurred, the process returns to step 100 and the above steps are repeated.

If an affirmative determination is made in step 112, that is, if it is determined that a disaster has occurred, the process moves to step 114, where an instruction to start the disaster display process is executed, and the process returns to step 100.

FIG. 9 is a control flowchart showing a disaster display processing routine that is executed by interrupting the main routine of FIG. 8 when there is an instruction to start the disaster display processing in step 114 of FIG. The disaster display processing routine in FIG. 9 is executed in parallel to the main routine processing in FIG.

As shown in FIG. 9, in step 150, various information is collected from the external disaster prevention related site 58, and then the process moves to step 152 to execute disaster display processing.

A specific example of display processing in the event of a disaster is to first acquire a hazard map (step 152A), then display the position of the district governor 24 in a superimposed manner (step 152B), and display the flood sensor 38 and the stoppage determination flood sensor 52. The detected information is obtained (step 152C) and the status of the district governor 24 is visually identified (step 152D). As a result, a district governor flood situation image 78B shown in FIG. 7 is displayed on the monitor 78.

In the next step 154, it is determined whether the manual stop type district governor 24B (second governor 24B) has been flooded. If an affirmative determination is made in this step 154, the process moves to step 156, where the department in charge of the manual stop type district governor 24B (second governor 24B) is notified of the stop, and the process moves to step 158. Further, if a negative determination is made in step 156, the process moves to step 158.

In step 158, it is determined whether the disaster has been resolved, and if the determination is negative, the process returns to step 150 and the above steps are repeated.

Further, if an affirmative determination is made in step 150, the process proceeds to step 160, where the disaster display process is ended, and this routine is ended.

According to the present embodiment, especially in the event of a disaster, the operating status (in operation or stopped) of each district governor 24 and whether it is necessary to stop are displayed on the two-dimensional map so that it can be visually identified. At the same time, a district governor flood situation image 78B (see FIG. 7, details will be described later) is displayed with a hazard map showing the disaster (particularly flooding) situation superimposed thereon.

In addition, the automatic stop type district governor 24A (first governor 24A) is equipped with a water intrusion sensor 38 and a pressure sensor 40, and the manual stop type district governor 24B (second governor 24B) is equipped with a water inundation sensor 38 and a pressure sensor 40. In addition to the sensor 40, a flood sensor 52 for stoppage determination is installed, and based on the analysis results, the district governor 24 classifies the stoppage required mark 92A, the continued operation mark 92B, and the stopped governor mark 92C, and indicates the district governor flood damage. It is now displayed on the status image 78B.

Therefore, the district governor 24 that needs to be stopped can be quickly detected and notified to the competent department site 60, which can be recognized by the display mark (stop required mark 92A) of the district governor flood situation image 78B. I can do it.

In particular, in the manual type district governor 24B (second governor 24B), the stoppage determination flood sensor 52 accurately determines the flood situation (specifically, when an abnormal operation of the district governor 24B (second governor 24B) occurs). If it is necessary to close a valve, etc., it is possible to quickly notify the responsible department.

In this embodiment, the occurrence of a disaster is determined in step 112 of FIG. 8, and the disaster display control shown in FIG. 9 is executed by instructing to start the disaster display process in step 114. , even in normal times, the display control shown in FIG. 9 may be always processed in parallel.

(Modified example)
In the present embodiment, the real-time status of the district governor 24 is displayed in the district governor flood situation image 78B by classifying it into a stoppage required mark 92A, an operation continuation mark 92B, and a stopped governor mark 92C (real-time control mode), the hazard map situation is learned using AI etc. based on weather information (including past big data), river water levels (including big data of past water level changes), topography, etc. , the disaster determining unit 70 or the like executes a river flooding prediction simulation to predict in advance which district governors 24 are likely to be flooded, and displays the prediction results on the monitor 78, so that the disaster can be detected at an early stage. An instruction such as closing a valve may be issued (predictive simulation display control mode).

That is, in the predictive simulation display control mode, flooding is predicted by comparing the inundation level information of each of the plurality of district governors 24 and the height position information of each of the plurality of inundation sensors 24 under the condition of the flood prediction simulation. It is possible to notify.

10 Governor Station (GS)
12 Factory 14 High pressure gas pipe 16 Valve station 18 Upstream medium pressure gas pipe 20 Gas tank 22 Downstream medium pressure gas pipe 24 District governor 24A 1st governor (automatic stop type)
24B 2nd governor (manual stop type)
26 Facility 28 Valve station 30 Low pressure gas pipe 32 General household 34 Gas microcomputer meter 36 Command center 42 Governor body 44 Auxiliary governor 46 Medium pressure auxiliary governor 48 Low pressure auxiliary governor 50 Safety device 26G Floor surface 38 Flood sensor 40 Pressure sensor 52 For stop judgment Flood sensor 54 Disaster monitoring system 36S Management server 56 Network 58 External disaster prevention related site 60 Jurisdictional department site 62 Information collection section 64 Information analysis section 66 Monitoring processing section 68 External disaster prevention information collection section 70 Disaster determination section 72 Hazard map acquisition section (control section )
74 Superimposition processing unit (control unit)
76 Display control section (control section)
78 Monitor 78A Disaster view main image 78B District governor flood situation image 80 Selection bar group 82 Map display screen 80A Weather information bar 80B District governor observation information bar 80C Risk information bar 80D Traffic information bar 80E SNS disaster information bar 80F External website bar 80M Disaster main theme selection bar 82 Map display screen 84 River 86 Bay area 88 Land area 90 Hazard map 92A Stoppage required mark 92B Operation continuation mark 92C Stopped governor mark

The district governor monitoring system according to the present invention includes underground equipment including gas pipes buried underground and above-ground equipment including a plurality of district governors installed at a plurality of gas supply bases above ground. Each of them is installed in each of the plurality of district governors, and includes a plurality of flood sensors that detect a situation of flooding to the extent that it interferes with gas supply, and a two-dimensional map of the area where the plurality of gas supply bases are scattered. real-time display for displaying on a display unit, superimposing the positions of the plurality of flood sensors on the two-dimensional map displayed on the display unit, and adding the detection status of each of the plurality of flood sensors in real time; a first governor equipped with a safety mechanism that automatically stops gas supply; and a second governor not equipped with the safety mechanism. The second governor is characterized in that, in addition to the water immersion sensor, the second governor is provided with a stop determination water immersion sensor for determining whether it is necessary to stop the gas supply due to water immersion. .

Claims (6)

In a gas supply line equipped with underground equipment including gas pipes buried underground and above-ground equipment including a plurality of district governors installed at a plurality of above-ground gas supply bases, gas is supplied to each of the plurality of district governors. Multiple inundation sensors that detect inundation to the extent that it disrupts supply;
displaying a two-dimensional map of an area where the plurality of gas supply bases are scattered on a display unit, and displaying the positions of the plurality of flood sensors in an overlapping manner on the two-dimensional map displayed on the display unit, and a control unit capable of executing a real-time display control mode that adds detection status of each of the plurality of flood sensors in real time;
District Governor Monitoring System with 2. The district governor monitoring system according to claim 1, wherein the degree of detection status of each of the plurality of flood sensors is identified by visual recognition including at least one of a lighting state and a display color. 3. The district governor monitoring system according to claim 1, wherein the two-dimensional map is a hazard map that predicts damage caused by natural disasters and displays the range of the damage. The area according to claim 1 or claim 2, wherein when a disaster occurs, warning information including at least one of a river flooding risk, a weather warning, a flooding risk, and a landslide risk is displayed superimposed on the two-dimensional map. Governor monitoring system. The plurality of district governors are classified into a first governor that is equipped with a safety mechanism that automatically stops gas supply, and a second governor that is not equipped with the safety mechanism, and the second governor includes the 2. The district governor monitoring system according to claim 1, further comprising a stoppage determination waterflow sensor for determining whether or not a gas supply stop due to flooding is necessary, in addition to the waterflow sensor. The control unit,
In addition to the real-time display control mode,
A river flood prediction simulation is executed based on weather forecast information, and by comparing the inundation level information of each of the plurality of district governors and the height position information of each of the plurality of inundation sensors under the conditions of the flood prediction simulation. 2. The district governor monitoring system according to claim 1, further comprising a predictive simulation display control mode that predicts and provides notification of inundation before any of the plurality of inundation sensors detects inundation.