Weather forecasting system for construction site, weather forecasting method, and weather forecasting program

Abstract

To provide a person in charge of a construction site with weather forecasts that facilitate being utilized in the construction site.SOLUTION: Provided is a weather forecasting system for a construction site, including a work management information storage unit 25 for storing work items at the construction site, and a control unit 19. The control unit 19 is configured to: set weather-related warning conditions for each work item; set prioritized prediction characteristics of a weather forecast for each work item; obtain a weather forecast for an area and date and time where the construction site is located, the weather forecast corresponding to the prediction characteristics of the weather forecast set for the work item; and notify a user terminal of a work item when there is the work item for which the weather forecast satisfies the warning conditions.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a weather forecasting system, a weather forecasting method, and a weather forecasting program for a construction site. [Background technology]

[0002] At construction sites, work plans need to be changed depending on weather conditions. Conventionally, changes to plans were decided based on the intuition and experience of the person in charge. This resulted in inconsistencies in the judgment of plan changes depending on the person in charge.

[0003] In response to this, a system has been proposed that supports work at construction sites based on the results of weather forecasts (see, for example, Patent Document 1). This system estimates whether or not a weather disaster is likely to occur through numerical analysis or AI analysis based on meteorological information, etc. Furthermore, if the system determines that a weather disaster is likely to occur, it proposes information regarding disaster prevention measures. This makes it possible to reduce the variability in measures against weather disasters. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2022-138697 A Summary of the Invention [Problem to be solved by the invention]

[0005] The above system proposes measures to be taken at construction sites against weather disasters, but various types of work at construction sites require changes to plans according to more detailed weather conditions in consideration of productivity. For this reason, construction site staff check the weather forecast at all times and judge whether or not plans need to be changed. As a result, the staff are burdened. If there is a system that can respond to various weather conditions for work at construction sites and can be used to judge changes to plans, it is expected that the variation in judgment between staff members will be reduced and the burden on staff members will be reduced. [Means for solving the problem]

[0006] A weather forecasting system for construction sites that solves the above-mentioned problems is a weather forecasting system for construction sites that includes a work management information memory unit that stores work items at the construction site, and a control unit, in which the control unit sets weather-related warning conditions for each work item, sets prediction characteristics of a prioritized weather forecast for each work item, obtains a weather forecast for the area where the construction site is located and for the date and time when work will be performed that corresponds to the prediction characteristics of the weather forecast set for the work item, and if there is a work item for which the weather forecast satisfies the warning conditions, issues a warning for the work item. Effect of the Invention

[0007] According to the present invention, a weather forecast that is easy to use at a construction site can be provided to construction site personnel. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a schematic diagram of a weather forecasting system according to one embodiment. [Diagram 2] 1 is a schematic diagram illustrating a hardware configuration of an information processing apparatus according to an embodiment. [Diagram 3] FIG. 2 is a block diagram of a weather forecast server in the embodiment. [Figure 4] 11 is a table evaluating the accuracy of weather forecasts according to the embodiment. [Diagram 5]FIG. 2 is a block diagram of a management support server in the embodiment. [Figure 6] 11 is a schematic diagram showing an example of work management information according to the embodiment; FIG. [Figure 7] 11 is a schematic diagram showing an example of work management information according to the embodiment; FIG. [Figure 8] 13 is a flowchart of a process for determining whether or not a plan change is necessary in the embodiment. [Figure 9] FIG. 13 is a diagram illustrating an example of a screen displayed on a user terminal of the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of a weather forecasting system, a weather forecasting method, and a weather forecasting program for a construction site will be described with reference to Figs. As shown in FIG. 1, the weather forecast system 1 has a weather forecast server 2 and a management support server 3. The weather forecast server 2 predicts the weather at a construction site. The management support server 3 outputs weather forecast information for the construction site to a user terminal 5 used by a user. The users include a person in charge of managing the construction site and a person in charge of work. The weather forecast server 2 and the management support server 3 are connected via a network such as the Internet.

[0010] Furthermore, a plurality of user terminals 5 are connected to the management support server 3 via a network such as the Internet. The user terminal 5 may be any computer having a communication function, such as a multi-function telephone (smartphone) or a personal computer. Furthermore, the management support server 3 may cause an output device 6 (digital signage) installed at the construction site to output weather forecast information. The guidance screen 6A output by the output device 6 is checked by a plurality of workers working at the construction site.

[0011] <Hardware configuration description> 2 shows a schematic hardware configuration of an information processing device H10 constituting the weather forecast server 2, the management support server 3, and the user terminal 5. The information processing device H10 includes a processor H11, a communication device H12, and a storage device H13. These are connected via a system bus H17, etc. Note that this hardware configuration is an example, and it is also possible to realize it using other hardware.

[0012] The communication device H12 is an interface that establishes a communication path with other devices via a network (not shown) such as the Internet, and transmits and receives data. For example, the communication device H12 is a network interface or a wireless interface.

[0013] The storage device H13 (computer-readable medium) stores data and various programs for executing various functions. The storage device H13 is composed of, for example, a main storage device and an auxiliary storage device. Examples of the storage device H13 include ROM, RAM, and a hard disk. The storage device H13 includes any available recording medium that can be accessed by a general-purpose or dedicated computer.

[0014] A weather forecast program for a construction site is stored in the storage device H13 of the management support server 3. In addition, a weather forecast service application or an Internet browser that outputs a screen of the weather forecast service is stored in the storage device of the user terminal 5.

[0015] The processor H11 controls each process using programs and data stored in the storage device H13. Examples of the processor H11 include a CPU and an MPU. The processor H11 loads the programs into the RAM and executes various processes for each process.

[0016] The processor H11 is not limited to a processor that performs software processing for all the processes it executes. For example, the processor H11 may be equipped with a dedicated hardware circuit (e.g., an application specific integrated circuit (ASIC)) that performs hardware processing for at least a part of the processes it executes. That is, the processor H11 may be configured as any of the following:

[0017] [1] One or more processors that operate according to a computer program (software). [2] One or more dedicated hardware circuits that perform at least some of the various processes [3] Circuits that include combinations of these The information processing device H10 may also include an input device H14, a display device H15, and a speaker H16. These are connected via a system bus H17, etc. The weather forecast server 2 and the management support server 3 may be configured such that the input device H14, the display device H15, and the speaker H16 are omitted.

[0018] The input device H14 is a device that accepts input of various information based on the operation of the person in charge and a device that inputs voice. The input device H14 is, for example, a touch panel, a mouse, a keyboard, a microphone, etc. The display device H15 is a display that displays various information, etc. The display device H15 may be combined with the touch panel that is the input device H14 to form a touch panel display. The speaker H16 outputs various voice data.

[0019] <Weather forecast server> 3 shows functions of the weather forecast server 2. The processor H11 executes processes according to instructions of programs loaded into a memory, which is one of the storage devices H13, so that the weather forecast server 2 functions as a weather forecast unit 11, a machine learning unit 12, and a verification unit 13. The above programs include a weather forecast program for a construction site.

[0020] The weather forecasting unit 11 reads the numerical weather data 14 and the numerical map data 15 to simulate future weather at the construction site. The numerical weather data 14 and the numerical map data 15 are high-precision data of the prediction target area including the construction site. The numerical weather data 14 is data predicting future weather conditions such as temperature, wind, water vapor amount, and solar radiation. The numerical map data 15 is map data in which the prediction target area is the construction site and the prediction target area is divided into small meshes. The weather forecasting unit 11 performs weather forecasting using one or more prediction algorithms.

[0021] The machine learning unit 12 learns past weather observation data, etc. The machine learning unit 12 performs weather forecasting using the simulation results and past weather observation data. For example, the machine learning unit 12 may learn trends in the accuracy of weather forecasts required at construction sites. The machine learning unit 12 may also generate weather forecasts with different characteristics based on different algorithms. The verification unit 13 verifies the reliability of the prediction results generated by the machine learning unit 12 and transmits the verified weather forecast to the management support server 3.

[0022] The following describes the weather forecast generated by the weather forecast server 2. Since uncertainty cannot be completely avoided in a weather forecast, the machine learning unit 12 generates a weather forecast taking into account the fluctuation range of the weather forecast.

[0023] Figure 4 is a table for explaining the strikeout rate, missed ball rate, and threat score. This table shows four patterns divided according to whether a specific phenomenon such as rainfall was included in the weather forecast (forecast: "Yes" or "No"), and whether the specific phenomenon actually occurred (actual report: "Yes" or "No"). The table also shows the number of occurrences for each pattern.

[0024] The miss rate is the ratio of the number of cases B where a given phenomenon was not predicted but actually occurred, divided by the total number of occurrences (〔B〕 / 〔A+B+C+D〕). The miss rate is the ratio of the number of cases C where a phenomenon was predicted to occur but did not actually occur, divided by the total number of occurrences (〔C〕 / 〔A+B+C+D〕). The threat score is the ratio of the number of cases A where a phenomenon was predicted to occur but actually occurred, divided by the sum of the numbers A through C excluding number D (〔A〕 / 〔A+B+C〕). The hit rate is the ratio of the sum of the number of cases A where a phenomenon was predicted and actually occurred and the number of cases D where a phenomenon was not predicted and actually did not occur, divided by the total number of occurrences (〔A+D〕 / 〔A+B+C+D〕).

[0025] The machine learning unit 12 can perform weather forecasting by prioritizing each of the missed shot prevention, the missed shot prevention, and the balance based on a plurality of algorithms. The machine learning unit 12 may generate a weather forecast by prioritizing each of the missed shot prevention, the missed shot prevention, and the balance at a predetermined timing.

[0026] A weather forecast that prioritizes the suppression of false alarms is a forecast that prioritizes reducing the false alarm rate over the miss rate and the threat score. The machine learning unit 12 performs weather forecasting that prioritizes the suppression of false alarms by referring to the false alarm rates of past weather forecasts.

[0027] The weather forecast with suppression of oversight is a forecast that prioritizes reducing the oversight rate over the strikeout rate and the threat score. The machine learning unit 12 performs weather forecast with priority given to suppression of oversight by referring to the oversight rate of past weather forecasts.

[0028] A balanced weather forecast is a forecast that reduces both the strike-and-miss rate and the oversight rate. In other words, a balanced weather forecast is a forecast that increases the threat score. The machine learning unit 12 performs weather forecasting so as to reduce both the strike-and-miss rate and the oversight rate by referring to the threat scores of past weather forecasts. Note that a combination of strike-and-miss suppression, oversight suppression, and balanced priority may be used for one phenomenon as a basis for determining plan changes.

[0029] <Administration support server> 5 shows the functions of the management support server 3. The management support server 3 functions as a control unit 19 by the processor H11 executing processes according to the commands of a program loaded into a memory, which is one of the storage devices H13. The control unit 19 has the functions of a setting unit 20, a forecast acquisition unit 21, a determination unit 22, and a notification unit 23. The management support server 3 also includes a work management information storage unit 25 as part of the storage device H13. The work management information storage unit 25 may be recorded in a separate server.

[0030] The setting unit 20 receives the work items and the work date and time from the user terminal 5. The work items are work items scheduled at the construction site. The work items include individual work items such as "soil transportation" as well as items including multiple works such as "general". The setting unit 20 also acquires, for each work item, a weather warning condition, a timing for comparing the forecast value with the warning condition, and a prediction characteristic to prioritize the weather forecast. This "timing" indicates the timing for determining whether or not a warning is necessary for the work date and time, such as "the day before". The prediction characteristic is a characteristic related to the accuracy of the weather forecast. In this embodiment, the prediction characteristic is any one of the above-mentioned strike-and-miss suppression, overlooked suppression, and balance. The prediction characteristic is set in consideration of the quality, productivity, safety, etc. required for the work.

[0031] The setting unit 20 may acquire the warning conditions, timing, and predicted characteristics designated by the person in charge from the user terminal 5. Alternatively, the setting unit 20 may acquire the warning conditions, timing, and predicted characteristics recorded in association with the work items from master data pre-stored in the storage device H13 of the management support server 3. Furthermore, the setting unit 20 records the acquired warning conditions, timing, and predicted characteristics for each work item in the work management information associated with the construction site, and records the work date and time in the work schedule information.

[0032] The forecast acquisition unit 21 acquires a weather forecast 18 for a target prediction area and a target prediction date and time, the weather forecast 18 corresponding to the prediction characteristics set in the work management information. The forecast acquisition unit 21 may acquire only the weather forecast 18 corresponding to the prioritized prediction characteristics from the weather prediction server 2. Alternatively, the forecast acquisition unit 21 may acquire a plurality of weather forecasts 18 from the weather prediction server 2, and specify the weather forecast 18 corresponding to the prioritized prediction characteristics from among them.

[0033] The determination unit 22 acquires a warning condition associated with a work item from the work management information storage unit 25. The determination unit 22 also determines whether or not a forecast value, such as a numerical value, included in the weather forecast acquired by the forecast acquisition unit 21 satisfies the warning condition.

[0034] The notification unit 23 issues a warning to the user terminal 5 for a task item for which the forecast value included in the acquired weather forecast satisfies a warning condition. The notification unit 23 may have an automatic response function that automatically responds to a message in a natural language input to a weather forecast service application. The automatic response function may be a mechanism such as an artificial intelligence (AI) such as a chat bot. The notification unit 23 may also issue a notification regarding the weather forecast that does not include a warning.

[0035] <Work management information> The work management information 26 and the work schedule information 27 stored in the work management information storage unit 25 will be described with reference to FIGS.

[0036] Fig. 6 shows a part of the work management information 26. The work management information 26 has target forecast, work item, timing, warning condition, prediction characteristic, warning content, and delivery destination. Note that the "purpose" in the table of Fig. 6 is written for the convenience of explaining the work management information 26 and may be omitted.

[0037] The target forecast refers to a phenomenon that is used as a basis for deciding whether to change the work plan. Examples of the target forecast include rainfall, lightning, strong winds, temperature, and heat index (WBGT: Wet Bulb Globe Temperature). The work items are the items of work performed at the construction site. Examples of the work items include all work ("general"), pouring ready mixed concrete ("ready mixed concrete"), transporting soil generated at the construction site ("remnant soil transportation"), sealing work, mechanical joint work, etc.

[0038] The timing is the timing for determining whether or not to warn the person in charge, and is set based on at least one of the characteristics of the work, the accuracy of the weather forecast, and the schedule of the construction site. For example, if it is necessary to request a contractor the day before the work, it is preferable to determine whether or not to warn before the request. For example, a "lightning strike" is a localized phenomenon, and it is difficult to predict exactly when and where it will occur, but it is a phenomenon that requires prevention of overlooking because it is related to the safety of the construction site. For this reason, it is preferable to determine whether or not to warn about a "lightning strike" in a short time span, for example, several times a day, every hour. Furthermore, at a construction site, the start time of work, morning meetings, break times, etc. are fixed, so it is preferable to determine whether or not to warn depending on the phenomenon.

[0039] The warning condition indicates the condition for issuing a warning, and includes a threshold value that is the criterion for issuing the warning. The warning condition may be set based on safety regulations. For example, the crane safety regulations prescribe a wind speed condition under which crane work must be stopped. The warning condition for "working at height" may include a threshold value based on this wind speed condition.

[0040] The forecast characteristics are characteristics related to the accuracy of the weather forecast, and are specified for each work item according to the characteristics of the work. For example, for "heavy rain" with a certain precipitation intensity or more, oversight suppression is set for the forecast of heavy rain immediately before, and balance is set for the forecast of heavy rain on the previous day. Also, "rainfall" affects the finish of concrete in the pouring work of "ready-mixed concrete", but the change of the work plan is determined by the precipitation intensity. For this reason, two warning conditions are set for the pouring work of "ready-mixed concrete". For example, oversight priority is set for the forecast of rain with a wide range of precipitation intensity to suppress oversight, and balance priority is set for the forecast of rain with a significantly high precipitation intensity. In other words, depending on the threshold setting, a warning based on two warning conditions is sent. This makes it possible to consider changes to the work plan without overlooking the rain forecast, and to suppress unnecessary cancellation of work due to a false heavy rain forecast.

[0041] Additionally, for "lightning strikes," prediction characteristics are set to suppress missed strikes to ensure safety. Furthermore, because strong winds affect all work and crane work, priority is given to forecasts that suppress missed strikes for all work. Additionally, for crane work, warning conditions are set that multiply the safety standard value by a safety factor, and forecasts that suppress miss strikes are given priority. This allows for highly accurate alert information to be sent even under weather conditions with large changes in wind speed.

[0042] The warning content indicates the content of the warning included in the notification sent to the user terminal 5. The delivery destination indicates the destination to which the notification is sent. The notification is sent via an application installed on the user terminal 5 or via e-mail. The delivery destination is the device identification information or e-mail address of the user terminal 5. The user checks the notification displayed on the user terminal 5 and determines whether or not a change to the plan is necessary.

[0043] 7 shows the work schedule information 27. The work schedule information 27 includes, for each target forecast and work item, the work date and time, and the timing for determining whether or not a warning is required. This timing may be any specific timing at which a process related to a warning is performed, and may be, for example, the timing at which a weather forecast is obtained or the timing at which a warning is sent.

[0044] The work date and time indicates the scheduled date and time of work at the construction site. The work date and time is data transmitted from the user terminal 5 based on the operation of the person in charge, etc. The work schedule information 27 may be changed based on the data transmitted from the user terminal 5 according to the progress of the work. The timing is calculated based on the timing included in the work management information 26, with the work date as the reference. The management support server 3 determines whether or not to send a warning based on this timing.

[0045] <Weather forecast notification processing> Next, the procedure of the notification process to the user terminal 5 will be described with reference to Fig. 8. The process procedure shown in Fig. 8 is repeated from the start to the end of the weather forecast service for a specific construction site. Also, the order of steps S1 to S6 may be changed as long as no contradiction occurs.

[0046] As a premise of the notification process, the person in charge of managing the construction site or the person in charge of the work registers the work items to be performed at the construction site, the work date and time, and the notification destination in the management support server 3 using the user terminal 5. The destination includes at least the person in charge of managing the site or the person in charge of the work. The setting unit 20 records the work items and the work date and time in the work management information 26 and the work schedule information 27. The setting unit 20 sets the warning conditions, warning timing, predicted characteristics, and warning contents for the work items specified by the person in charge based on the master data registered in advance, and records them in the work management information 26. It should be noted that instead of using the master data, the person in charge may set any timing, warning conditions, predicted characteristics, and warning contents using the user terminal 5. It is also possible to add work items after the service is started.

[0047] The determination unit 22 determines whether or not there is a work item for which the timing for determining whether or not a warning is required has arrived, by referring to the work schedule information 27 (step S1). If the determination unit 22 determines that there is no work item for which the timing for determining whether or not a warning is required has arrived (step S1: NO), the determination unit 22 repeats step S1 at predetermined time intervals.

[0048] When the judgment unit 22 determines that there is a work item that has reached the timing for determining whether or not a warning is necessary (step S1: YES), it refers to the work management information 26 and obtains the prioritized predicted characteristic associated with the work item that has reached the timing (step S2).

[0049] The forecast acquisition unit 21 acquires a weather forecast in which the prediction characteristic is prioritized from the weather forecast server 2 based on the prediction characteristic acquired by the determination unit 22 (step S3). For example, the forecast acquisition unit 21 transmits identification information of the construction site (or identification information of the prediction target area), the prediction target date and time, and the prediction characteristic to the weather forecast server 2. At this time, the forecast acquisition unit 21 may transmit information specifying the phenomenon to be forecasted, such as "rainfall" or "strong wind", to the weather forecast server 2. The verification unit 13 of the weather forecast server 2 selects a weather forecast with a prioritized prediction characteristic from one or more weather forecasts corresponding to the prediction target date and time and the specified construction site. Then, the verification unit 13 transmits the selected weather forecast to the management support server 3. Alternatively, the forecast acquisition unit 21 may acquire multiple weather forecasts with different prediction characteristics corresponding to the prediction target date and time and the specified construction site from the weather forecast server 2, and specify a weather forecast with a prioritized prediction characteristic from among them.

[0050] Next, the determination unit 22 refers to the work management information 26 and acquires the warning condition set in association with the work item (step S4). The determination unit 22 compares the acquired warning condition with the forecast value of the phenomenon associated with the work item and judges whether the forecast value satisfies the warning condition (step S5). For example, if the threshold is a precipitation intensity range of "0 mm / h or more and □ mm / h or less", the determination unit 22 judges whether the forecast value of precipitation intensity included in the weather forecast is within this range. If the threshold is a wind speed of "more than 0 m / s", the determination unit 22 judges whether the forecast value of wind speed included in the weather forecast exceeds this wind speed.

[0051] When the determination unit 22 determines that the forecast value satisfies the warning condition (step S5: YES), the notification unit 23 issues a warning to the person in charge (step S6). At this time, the notification unit 23 sends a message including the warning content associated with the work item to the delivery destination associated with the work item. Alternatively, the notification unit 23 sends the warning content to the output device 6. When the user terminal 5 receives the warning, it outputs the warning as a notification within an application, a push notification, an email, or the like. The output device 6 outputs a guidance screen 6A based on the information received from the management support server 3.

[0052] If the determination unit 22 determines that the forecast value does not satisfy the warning condition (step S5: NO), the process returns to step S1 without issuing a warning by the notification unit 23. At this time, the notification unit 23 may transmit a message that does not include warning content to the user terminal 5, etc. An example of a message that does not include warning content is a message related to a weather forecast, such as "The probability of rain is predicted to be low."

[0053] <Application screen> Next, with reference to FIG. 9, a screen of the weather forecast service application will be described. Fig. 9 is an example of a message screen 30 displayed on a user terminal 5 used by a person in charge of managing a construction site. In the weather forecast service, in addition to a user account corresponding to the person in charge, an administration account that is the official account of the weather forecast service is generated. Messages 31 and 32 transmitted and received between the administration account and the user account are displayed on the message screen 30.

[0054] In the example shown in FIG. 9, a forecast notification message 31A is displayed on the message screen 30 for a weather forecast determined to satisfy the warning condition. Messages 31B and 31C indicating questions generated by the chat bot function of the notification unit 23 may be displayed on the message screen 30. The messages 31B and 31C indicating questions are sent from the management account to the user terminal 5. The messages 31B and 31C indicating questions may be, for example, questions about whether work is scheduled or not, and about the scheduled date of the work. In response to this, the user can input an answer. As a result, the user terminal 5 displays messages 32A and 32B indicating the answer. The messages 32A and 32B indicating the answer are, for example, scheduled work and the scheduled date of the work. Furthermore, the notification unit 23 may display a message 31D on the user terminal 5 indicating that the forecast for the next day will be notified on the day before the work. The notification unit 23 can register the work items scheduled at the construction site and the scheduled date of the work in the work management information 26 based on the received messages 32A and 32B.

[0055] As described above, according to the above embodiment, the following effects can be obtained. (1) The management support server 3 issues a warning for each work item using a weather forecast with prediction characteristics related to the accuracy of the weather forecast and set according to the quality, productivity, or safety required for the work. In this way, the weather forecast provided to the person in charge is processed according to the requirements for the construction site, so that a weather forecast that is easy to use at the construction site can be provided to the person in charge. In addition, when the forecast value included in the weather forecast satisfies the warning condition set for each work item, the management support server 3 transmits a warning regarding the weather forecast for the work to the user terminal 5. In this way, a certain standard for changing the work plan can be provided to the person in charge as a decision-making material, so that the variation in judgment of plan changes among the persons in charge can be suppressed.

[0056] (2) In the above embodiment, the management support server 3 can obtain a weather forecast having prediction characteristics associated with a work item from among multiple weather forecasts having different prediction characteristics generated by each algorithm. This makes it possible to provide notifications using weather forecasts that are tailored to the characteristics of work at a construction site.

[0057] The above-described embodiment can be modified as follows: Each embodiment and the following modified examples can be combined with each other to the extent that there is no technical contradiction. In the above embodiment, the forecast acquisition unit 21 acquires a weather forecast with a prioritized forecast characteristic. However, if a weather forecast with a prioritized forecast characteristic cannot be obtained, the forecast acquisition unit 21 may use a weather forecast with another forecast characteristic. In this case, the forecast value may be determined by statistically processing the weather forecasts with multiple forecast characteristics.

[0058] In the above embodiment, the prediction characteristics are three types: strike-and-miss suppression, oversight suppression, and balance. However, multiple types may be used that prioritize other indices calculated using at least a part of the occurrence counts A to D. For example, the hit rate may be prioritized instead of or in addition to these prediction characteristics.

[0059] In the above embodiment, the notification is performed using a weather forecast service application. Instead of or in addition to this, the notification may be performed using an instant messenger (also called a messaging application) that transmits and receives messages between accounts.

[0060] In the above embodiment, the person in charge or the like sets the work items scheduled at the construction site using the user terminal 5. Instead of or in addition to this, the management support server 3 may register the work items by acquiring a schedule at the construction site. The control unit 19 of the management support server 3 acquires a schedule including information on the work items and the work date and time. Then, the control unit 19 records the work items and the work date and time in the work management information 26. In this case, the chat bot function of the control unit 19 may send a question message such as "The schedule shows that 'ready mixed concrete' work is scheduled. Is it going according to plan?" to the user terminal 5. When the control unit 19 receives a response to the question about the work date and time, the control unit 19 may acquire a weather forecast according to the prediction characteristics of the work item. Then, when the weather forecast satisfies the warning condition, the control unit 19 may send a warning to the user terminal 5.

[0061] In the above embodiment, the control unit 19 of the management support server 3 performs a first process of setting a weather warning condition for each work item, a second process of setting a prediction characteristic of a weather forecast to be prioritized for each work item, a third process of acquiring a weather forecast for the region and date and time where the construction site is located and according to the prediction characteristic of the weather forecast set for the work item, and a fourth process of warning the person in charge of the work item if there is a work item for which the weather forecast satisfies the warning condition. Alternatively, the user terminal 5 may perform at least one of the first process to the fourth process. In this case, the processor H11 of the user terminal 5 functions as the control unit. Also, a weather forecast program for the construction site is stored in the storage device H13 of the user terminal 5. Alternatively, the weather forecast server 2 or another server constituting the weather forecast system 1 may perform at least one of the first process to the fourth process. In this case, for example, the processor H11 of the weather forecast server 2 functions as the control unit. Also, a weather forecast program for the construction site is stored in the storage device H13 of the weather forecast server 2. [Explanation of symbols]

[0062] 1...weather forecasting system, 2...weather forecasting server, 3...management support server, 5...user terminal, 6...output device, 11...weather forecasting unit, 12...machine learning unit, 13...verification unit, 14...numerical weather data, 15...numerical map data, 19...control unit, 20...setting unit, 21...forecast acquisition unit, 22...determination unit, 23...notification unit, 25...work management information memory unit, 26...work management information.

Claims

1. A weather forecasting system for a construction site, comprising a work management information storage unit that stores work items at the construction site, and a control unit, The control unit: Setting weather-related warning conditions for each of the work items; For each of the work items, set a priority forecast characteristic of the weather forecast; Obtaining a weather forecast for the region where the construction site is located and for the date and time when the work will be performed, the weather forecast corresponding to the prediction characteristics of the weather forecast set for the work item; A weather forecasting system for a construction site that issues a warning about a work item if the weather forecast satisfies the warning condition for the work item.

2. The weather forecast system for a construction site according to claim 1 , wherein the control unit obtains the weather forecast having the prediction characteristic associated with the work item from among a plurality of weather forecasts based on different prediction algorithms.

3. A weather forecasting method for a construction site using a work management information storage unit that stores work items at the construction site and a control unit, The control unit: Setting weather-related warning conditions for each of the work items; For each of the work items, set a priority forecast characteristic of the weather forecast; Obtaining a weather forecast for the region where the construction site is located and for the date and time when the work will be performed, the weather forecast corresponding to the prediction characteristics of the weather forecast set for the work item; The method of weather forecasting for a construction site, wherein if the weather forecast satisfies the warning condition for any of the work items, a warning is issued for the work items.

4. A weather forecasting program that provides information about weather using a weather forecasting system for a construction site, the weather forecasting system including a work management information storage unit that stores work items at a construction site and a control unit, The control unit, Setting weather-related warning conditions for each of the work items; For each of the work items, set a priority forecast characteristic of the weather forecast; Obtaining a weather forecast for the region where the construction site is located and for the date and time when the work will be performed, the weather forecast corresponding to the prediction characteristics of the weather forecast set for the work item; A weather forecast program for a construction site, which functions as a means for issuing a warning about a work item when the weather forecast satisfies the warning condition for the work item.

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