Water distribution route analyzer

Abstract

Easily secure important routes along water distribution routes. [Solution] The water distribution route analysis device 100 includes a pipeline information storage unit 110 that stores pipeline information regarding the water distribution pipeline network and each section of the water distribution pipeline; a change information storage unit 120 that stores change information that virtually changes the pipeline information; a water distribution information generation unit 131 that generates water distribution information indicating the water distribution situation based on the pipeline information and the change information; a water distribution route search unit 132 that finds the water distribution route from the water source to a specified water supply base based on the water distribution information; a seismic resistance rate calculation unit 133 that calculates the seismic resistance rate of the water distribution route; an output unit 150; and an input unit 140.

Description

[Technical Field]

[0001] The present invention relates to a water distribution route analysis device used to secure water distribution routes to important water supply bases, for example. [Background technology]

[0002] In order to grasp the water distribution situation through a water distribution pipeline network, a pipeline network analysis device is known that uses a computer to perform fluid analysis of the water distribution pipeline network based on required equations and calculates and derives flow condition data such as flow velocity, flow direction, and pressure (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 4-16633 Summary of the Invention [Problem to be solved by the invention]

[0004] In the event of a large-scale earthquake, it is particularly important to secure important routes that will serve as water distribution routes to important facilities such as hospitals and evacuation sites. To do this, it is necessary to identify pipelines that could become important routes in advance and carry out earthquake-resistance construction work in a planned manner.

[0005] However, even if flow condition data is calculated and derived using the above-mentioned conventional pipeline network analysis device, it is not possible to identify such important routes.

[0006] The present invention has been made in consideration of the above points, and aims to make it possible to easily secure important routes in water distribution routes. [Means for solving the problem]

[0007] To achieve the above objectives, The present invention provides A water distribution route analysis device, a pipeline information storage unit that stores pipeline information regarding the water distribution pipeline network and each section of the water distribution pipeline; a change information storage unit that stores change information for virtually changing the pipeline information; a water distribution information generating unit that generates water distribution information indicating a water distribution status based on the pipeline information and the change information; a water distribution route search unit that determines a water distribution route from a water source to a predetermined water supply base based on the water distribution information; a seismic resistance rate calculation unit for calculating a seismic resistance rate of the water distribution route; an output unit that outputs information indicating the calculated earthquake resistance rate and the earthquake resistance level of the water distribution pipeline for each section of the water distribution route; an input unit that accepts input of the change information; The present invention is characterized by the following features.

[0008] This outputs information indicating the degree of earthquake resistance of the water distribution pipelines for each section along the water distribution route from the water source to a designated water supply base, and when change information that virtually changes the pipeline information is input accordingly, a water distribution route with a high earthquake resistance rate can be determined, making it easy to secure important lines along the water distribution route. [Effects of the Invention]

[0009] According to the present invention, important routes in water distribution routes can be easily secured. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a block diagram showing the configuration of a main part of a water distribution route analysis device 100. [Figure 2] FIG. 10 is an explanatory diagram schematically illustrating a display example of a mapping image of a water distribution pipeline network. [Figure 3] FIG. 10 is an explanatory diagram showing an example of water distribution route search and earthquake resistance rate calculation. [Figure 4] FIG. 10 is an explanatory diagram showing another example of a water distribution route search and an earthquake resistance rate calculation. [Figure 5] 3 is a flowchart showing an example of processing performed by the water distribution route analysis device 100. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

[0012] The water distribution route analysis device 100 includes a pipeline information storage unit 110, a change information storage unit 120, a processing unit 130, an input unit 140, and an output unit 150, as shown in FIG.

[0013] The pipeline information storage unit 110 stores pipeline information about the water distribution pipeline network and the water distribution pipelines of each section. Specifically, for example, for the water distribution pipeline network from the pumping station (water source) to important facilities 1 and 2 (water supply bases) as shown in Fig. 2, it stores pipeline information indicating the configuration of the network and the specifications of the water distribution pipelines of each section (diameter, pipe type for earthquake resistance, extension distance, etc.) as shown in Fig. 3(a).

[0014] The change information storage unit 120 stores change information for virtually or pseudo-changing the pipeline information. Specifically, for example, it stores information indicating the virtual closing of an existing valve installed in a water distribution pipeline, information indicating the virtual installation and closing of a new valve, and information indicating the virtual reduction of the diameter of a water distribution pipeline. Note that the change information storage unit 120 is not limited to being provided separately from the pipeline information storage unit 110, and may be stored in the same storage unit so that the original pipeline information and the change information can be distinguished.

[0015] The processing unit 130 functions as a water distribution information generating unit 131 that generates water distribution information indicating the water distribution status based on the pipeline information and change information stored in the pipeline information storage unit 110 and the change information storage unit 120, a water distribution route searching unit 132 that determines a water distribution route (important route) from a water source to an important facility (predetermined water supply base) based on the water distribution information, and an earthquake resistance rate calculating unit 133 that calculates an earthquake resistance rate of the water distribution route. The water distribution information generating unit 131 determines the flow rate of each water distribution pipeline as water distribution information, for example, by a water distribution simulation, as also shown in FIG. 3(a). The water distribution route searching unit 132 determines a water distribution route that passes through a distribution pipeline with a relatively high flow rate toward the important facility based on the flow rate of the distribution pipeline determined by the water distribution information generating unit 131. The earthquake resistance rate calculation unit 133 is also configured to calculate the ratio of the total length of earthquake-resistant pipes to the total length of the water distribution route as the earthquake resistance rate.

[0016] The input unit 140 receives input of the pipeline information and change information, etc. The input unit 140 is not limited to a unit that is directly operated by the user of the device, and may also receive input via communication or the like.

[0017] The output unit 150 outputs the calculated earthquake resistance rate, etc. The output unit 150 may also be configured to output display data of a mapping image of the water distribution pipeline network, for example, as shown in FIG. 2, according to the diameter and earthquake resistance level of the water distribution pipelines in each section. The water distribution route analysis device 100 itself may be equipped with a display device or the like to perform the display, or the display data may be output via communication or the like. Here, the method of displaying the mapping image is not particularly limited. For example, a mapping image according to the diameter and earthquake resistance level of the water distribution pipelines in each section may be displayed, such that the diameter is represented by the thickness of the line indicating the pipeline and the earthquake resistance level is represented by the color or type of the line (solid line, dashed line, one-dot chain line, etc.).

[0018] In the water distribution route analysis device 100 as described above, for example, by the process shown in FIG. 5, it is possible to secure an important line in the water distribution route for the important facility 1.

[0019] (S101) First, pipeline information relating to the water distribution pipeline network and the water distribution pipelines of each section is read from the pipeline information storage unit 110 and input to the processing unit 130 via the input unit 140.

[0020] (S102) The water distribution information generating unit 131 calculates the flow rate of each water distribution pipeline by so-called pipeline network calculation, as shown in FIG. 3(a).

[0021] (S103) The water distribution route search unit 132 determines important routes in the water distribution route based on water distribution information such as the flow rate of the water distribution pipeline, as shown in Figure 3(b), and the earthquake resistance rate calculation unit 133 calculates the earthquake resistance rate of the water distribution route.

[0022] (S104) If the earthquake resistance rate is greater than a predetermined reference value, the process proceeds to (S105), and if it is smaller, the process proceeds to (S106).

[0023] (S105) If it is determined in (S104) above that the seismic resistance rate is greater than the predetermined standard value, the water distribution route obtained as a result of the analysis and a list of the flow rate of the water distribution pipelines in each section are displayed or output.

[0024] (S106) On the other hand, if it is determined in (S104) that the earthquake resistance rate is not greater than the predetermined reference value, the earthquake resistance rate of the water distribution route, as well as the flow rate and earthquake resistance level of the water distribution pipelines in each section of the water distribution route, are displayed or output. When a user of the device inputs change information indicating the closing of existing valves or pseudo-added valves or the reduction of the diameter of pipelines with a low earthquake resistance in order to reduce water distribution through pipelines with a low earthquake resistance through the input unit 140, the change information is stored in the change information storage unit 120, and then the processing from (S102) onwards is repeated based on the change information stored in the change information storage unit 120 in addition to the pipeline information stored in the pipeline information storage unit 110.

[0025] Specifically, for example, if the earthquake resistance rate is 11% as shown in Figure 3(b), by virtually reducing the diameter of the pipes (3) to (5) as shown in Figure 3(c), the flow rate through these pipes will decrease, and the flow rate through the earthquake-resistant pipes will increase relatively, resulting in more earthquake-resistant pipes being used as the main water distribution route to the important facility 1. This will increase the likelihood that water will be distributed through pipes with a high degree of earthquake resistance, such as making it easier for users of the equipment to be guided to the water distribution route they expect, as also shown in Figure 3(c), and so it will be easy to increase the earthquake resistance rate of the water distribution route to, for example, 77%.

[0026] Here, for example, if the analysis diameters of all non-earthquake-resistant pipes are set to 0, no water will flow. Also, if the diameter of the earthquake-resistant pipe is too small, there will be a limit to the amount of water that can be distributed (if the diameter is too small and the flow rate is high, the pipe's capacity will be exceeded), and it may be necessary to select a nearby large-diameter non-earthquake-resistant pipe. For example, if the analysis diameter of a non-earthquake-resistant pipe (500mm or more) is set slightly larger than the analysis diameter of an earthquake-resistant pipe (less than 300mm), more water will flow to the non-earthquake-resistant pipe, and that pipe will be selected. Furthermore, while it is preferable to route all water used by important facilities through earthquake-resistant pipes as much as possible, it is also possible to select only based on the amount of water, taking into account the need for early distribution of water to general users. As mentioned above, flexible processing may be performed according to the actual situation.

[0027] Similarly, for important facilities 2, by securing important lines in the water distribution route, the earthquake resistance rate can be increased from 19% to 63%, for example, as shown in FIGS. 4(a) to 4(c).

[0028] As described above, when water distribution routes with a high rate of earthquake resistance are required, the likelihood of securing water supply to important facilities increases, and since there will be fewer pipelines with low earthquake resistance along those routes, earthquake resistance work can be carried out intensively and prioritized on such pipelines, making it easy to quickly improve the earthquake resistance rate of water distribution routes to important facilities even with a limited budget.In addition, in the event of an earthquake, it will be easier to extract routes that use as many existing earthquake-resistant pipes as possible and enable the early distribution of water to important facilities such as hospitals and evacuation sites that require emergency water, making it easier to quickly secure water supply.

[0029] As described above, in order to find a water distribution route that passes through a water distribution pipeline with a high flow rate, the process of changing the diameter according to the degree of earthquake resistance and performing pipe network calculations can be performed more specifically, for example, as follows.

[0030] For example, the degree of earthquake resistance of water distribution pipelines (1) Earthquake-resistant pipe type, (2) Earthquake-resistant pipe types depending on ground conditions, (3) Non-earthquake resistant pipe types If we divide the diameter of the water distribution pipeline into three types, (1) The earthquake-resistant pipe type was changed to a larger diameter than the actual diameter. (2) The type of pipe that is earthquake-resistant due to ground conditions will not be changed. (3) For non-earthquake-resistant pipes, if the change information is set to change the diameter to a smaller diameter than the actual diameter, the flow rate calculated by the water distribution information generating unit 131 tends to increase as the degree of earthquake resistance increases, and therefore, important routes calculated by the water distribution route searching unit 132 tend to include water distribution pipelines with a high degree of earthquake resistance. Therefore, water distribution routes with a high rate of earthquake resistance can be more easily calculated.

[0031] (Other matters) In addition, the following processing may be performed.

[0032] It is also possible to set analysis conditions for adding shut-off valves to limit the number of important facilities under a delivery point, and virtually shut off the water distribution route with valves to distribute the water as much as possible among multiple delivery points so as not to concentrate important facilities at a particular delivery point.

[0033] In addition, analysis conditions can be set to change the water supply volume in order to prioritize routes to important facilities, and in order to ensure water supply to important facilities during an earthquake, it may be necessary to restrict water supply to general customers other than those with important facilities if there is a shortage along the way. For this reason, the water supply volume to general customers may be intentionally reduced from the beginning of water distribution route determination, and the water supply volume to important facilities may be intentionally increased, making it easier to extract earthquake-resistant routes and ensure terminal pressure.

[0034] In addition, it is possible to set analysis conditions that change the operation / stop and delivery pressure of multiple pumps within a water purification and distribution plant, and to intentionally allocate important facilities to a specific delivery point by increasing the delivery pressure or decreasing others, thereby extracting a water distribution route.

[0035] As described above, by predetermining the range of influence of the sending point and registering pipelines separately to eliminate bias in the number of important facilities, and by preparing analysis conditions such as these, it becomes possible to easily review important routes that are earthquake-resistant and require little pipeline renewal based on the latest mapping data. [Explanation of symbols]

[0036] 100 Water distribution route analyzer 110 Pipe information storage section 120 Change information storage unit 130 Processing section 131 Water distribution information generation department 132 Water Distribution Route Search Unit 133 Earthquake resistance rate calculation department 140 Input section 150 Output section

Claims

1. a pipeline information storage unit that stores pipeline information regarding the water distribution pipeline network and each section of the water distribution pipeline; a change information storage unit that stores change information for changing the pipeline information so as to virtually reduce the water distribution; a water distribution information generating unit that generates water distribution information indicating a water distribution status based on the pipeline information and the change information; a water distribution route search unit that determines a water distribution route from a water source to a predetermined water supply base based on the water distribution information; a seismic resistance rate calculation unit for calculating a seismic resistance rate of the water distribution route; an output unit that outputs information indicating the calculated earthquake resistance rate and the earthquake resistance level of the water distribution pipeline for each section of the water distribution route; an input unit that accepts input of the change information; Equipped with A water distribution route analysis device configured to repeatedly generate the water distribution information, determine the water distribution route, and calculate the seismic resistance rate using the input change information.

2. The water distribution route analysis device according to claim 1, The water distribution route analysis device is characterized in that the water distribution route search unit determines the water distribution route based on the flow rate of the water distribution pipeline in each section.

3. The water distribution route analysis device according to claim 2, The water distribution route analysis device, wherein the change information includes information for changing the diameter of the water distribution pipeline to a smaller diameter as the earthquake resistance of the water distribution pipeline in each section of the water distribution route decreases.

4. The water distribution route analysis device according to claim 2, The water distribution route analysis device is characterized in that the change information includes information indicating that the lower the level of earthquake resistance of the water distribution pipeline in each section of the water distribution route, the more the valves should be closed.

5. The water distribution route analysis device according to claim 1, The water distribution route analysis device is characterized in that the output unit further outputs display data of a mapping image of the water distribution pipeline network according to the diameter and earthquake resistance level of the water distribution pipelines in each section.

Images