River information system, river information provision system, and river information alarm distribution method

Abstract

To provide a river information providing system by which notification of erroneous information due to an abnormal value is prevented.SOLUTION: A river information providing system is applicable to a river information system for acquiring observation data, and distributing an alarm mail when the observation data exceeds a predetermined threshold value. The river information providing system comprises an observation data control part, a mode setting part, and a mail distributing part. The observation data control part receives the observation data from a telemeter system. The mode setting part specifies selection of either a notification mode for giving notice of an alarm mail, or a non-notification mode for not giving notice of the alarm mail when the observation data exceeds a reference value, and selection of either an automatic determination mode for automatically performing switching between the notification mode and the non-notification mode based on existing determination reference, or a manual determination mode for manually performing switching. In a case where the notification mode is selected, the mail distributing part prepares and distributes the alarm mail when the observation data exceeds the reference value.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] An embodiment of the present invention relates to a river information system, a river information providing system, and an alarm distribution method for river information. [Background technology]

[0002] The River Information System is a system in which river offices, which are local agencies of the Ministry of Land, Infrastructure, Transport and Tourism, and local governments such as prefectures and other municipalities monitor and manage river water level information in real time, mainly for the purpose of flood control. The River Information System collects observation data such as rainfall and river water levels from observation stations at various locations using a telemetry system. In recent years, the data collected by the River Information System has been made available to the general public via browsers, increasing awareness among the general public.

[0003] The river information system is equipped with an alarm email notification function. With this function, if the rainfall or water level published on the river information system exceeds a standard value, an alarm email is automatically sent out to alert users. In addition to a warning message, the alarm email includes information such as meteorological alerts issued by the Japan Meteorological Agency (heavy rainfall alerts, advisories, etc.) and dam discharge notifications. Users to whom alarm emails are sent include administrators of the river information system, local government employees, firefighting personnel, and general residents. Alarm emails are used to make decisions about disaster prevention systems and preparations for evacuation, so not only the content of the alarm email but also the decision to notify or not notify itself is important. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6257987 [Patent Document 2] Patent No. 5871780 [Patent Document 3] JP 2002-350559 A Summary of the Invention [Problem to be solved by the invention]

[0005] Alarm emails are sent based on observation data such as rainfall and water levels. However, abnormal values ​​may occur in the observation data due to malfunctions of observation equipment or incorrect operation during inspection work. Abnormal values ​​refer to excessive precipitation or river water levels that exceed standard values. When an alarm email is sent due to an abnormal value, erroneous information is notified to an unspecified number of people, forcing administrators to do a great deal of work, such as sending emails to correct the information as soon as possible. Abnormal values ​​do not necessarily occur during working hours, so administrators are required to respond regardless of day or night.

[0006] If false information is frequently notified, the reliability of the information will be called into question in the first place. This could result in fewer users of the alarm email service, or emails that are received but not used, leading to delayed responses even when a real danger occurs. Even when abnormal values ​​occur, it is necessary to minimize false information notifications.

[0007] Therefore, an object of the present invention is to provide a river information system, a river information providing system, and a river information alarm distribution method that prevent notification of erroneous information due to abnormal values. [Means for solving the problem]

[0008] The river information providing system of the embodiment is applicable to a river information system that acquires observation data from a telemeter system and distributes an alarm email when the observation data exceeds a predetermined threshold. The river information providing system includes an observation data control unit, a mode setting unit, and an email distribution unit. The observation data control unit receives observation data from the telemeter system. The mode setting unit specifies the selection of either a notification mode in which an alarm email is sent when the observation data exceeds a reference value, or a non-notification mode in which no alarm email is sent, or the selection of either an automatic determination mode in which switching between the notification mode and the non-notification mode is automatically performed based on a predetermined determination criterion, or a manual determination mode in which switching is performed manually. When the notification mode is selected, the email distribution unit creates an alarm email when the observation data exceeds a reference value, and distributes the alarm email via a communication network. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a diagram showing an example of a river information system according to an embodiment. [Diagram 2] FIG. 2 is a functional block diagram showing an example of a communication processing server 20. [Diagram 3] FIG. 2 is a functional block diagram showing an example of an alarm mail server 10. [Figure 4] FIG. 4 shows an example of a Web page displayed on a display of the operation terminal 30. [Diagram 5] FIG. 5 is an enlarged view of the icons on the screen in FIG. 4. [Figure 6] FIG. 4 is a diagram showing an example of an operation screen on the operation terminal 30. [Figure 7] FIG. 13 is a diagram showing an example of an operation screen for individually specifying a manual determination mode and a notification mode. [Figure 8] FIG. 13 is a diagram showing an example of a verify window for reflecting an operation. [Figure 9] FIG. 13 is a diagram showing an example of a Web page displayed in notification mode. [Figure 10] 13 is a diagram showing another example of the operation screen of the operation terminal 30. FIG. [Figure 11]FIG. 13 is a diagram showing an example of an operation screen when in the automatic determination mode and the non-notification mode. [Figure 12] 6 is a flowchart showing an example of a processing procedure in the communication processing server 20. [Figure 13] 4 is a flowchart showing an example of a processing procedure in the alarm mail server 10. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] The present embodiment of the present invention will be described in detail below. The river information system is a system that collects observation data such as rainfall, water level, and dam quantities measured by telemeter systems and dam systems in real time, and provides the collected observation data to river managers (staff, etc.), flood prevention personnel, and local residents. The following explanation assumes application to disaster prevention systems for local governments, such as prefectures and cities, towns, and villages.

[0011] FIG. 1 is a diagram showing an example of a river information system according to an embodiment. 1, the river information system 1 comprises a river information providing system 2, a telemetry system 3 that collects observation data on river conditions, a radar rain gauge system 4, and a weather warning and advisory issuing system 5 as a public institution, all of which are connected to the river information providing system 2 via a dedicated line network 60. The river information system 1 is a system in which the river information providing system 2 collects and processes various data collected by the telemetry system 3, and the data is used for updating web pages, creating and distributing alarm emails, etc.

[0012] In FIG. 1, the telemetry system 3 includes a master station 50 and a plurality of observation stations 120 to 12n that acquire observation data relating to the state of rivers. The observation stations 120 to 12n are installed, for example, along a river, and include a water level sensor that observes the water level of the river and acquires water level data. The master station 50 periodically (eg, at 10 minute intervals) collects the observation data acquired individually by the observation stations 120 to 12n via the wireless communication network 40 and passes the collected data to the communication processing server 20 of the river information providing system 2.

[0013] The radar rain gauge system 4 is managed by, for example, the Ministry of Land, Infrastructure, Transport and Tourism, and acquires rainfall data over a wide area using a weather radar. The weather warning / advisory issuance system 5 is managed by, for example, the Japan Meteorological Agency, and issues weather warnings or weather advisories for predetermined regions (prefectures, cities, towns, and villages) according to the weather in each region.

[0014] The river information system 1 is a system including an alarm mail server 10 and a communication processing server 20. The alarm mail server 10 and the communication processing server 20 can communicate with each other, for example, via a LAN (Local Area Network). Furthermore, an operation terminal 30 is connected to the communication processing server 20, for example, via the LAN. The river information system 1 is installed, for example, in a prefectural office building.

[0015] The communication processing server 20 is connected to the radar rain gauge system 4 and the weather warning and advisory issuance system 5 as a public institution via a dedicated line network 60. The communication processing server 20 acquires rainfall data observed by the radar rain gauge system 4 and weather alerts issued by the weather warning and advisory issuance system 5 via the dedicated line network 60. The operation terminal 30 has a function of providing various settings and operations to the communication processing server 20.

[0016] The alarm mail server 10 is a server that creates alarm mail based on observation data on the state of rivers collected by the communication processing server 20 via the telemeter system 3. The alarm mail sent from the alarm mail server 10 is distributed to a user device 15, for example, via the Internet 70. The user device 15 is a terminal device (smartphone, laptop computer, etc.) owned by a local government official, a flood prevention official, a local resident, etc.

[0017] FIG. 2 is a functional block diagram showing an example of the communication processing server 20. As shown in FIG. The communication processing server 20 is a computer including a processor 22, a memory 23, an interface unit (I / F) 21, and a storage 24 such as an HDD or SSD.

[0018] The interface unit 21 is an interface unit connected to a LAN leading to the alarm mail server 10 , the master station 50 of the telemeter system 3 , and a leased line network 60 .

[0019] The memory 23 is a storage unit that stores an automatic / manual flag 23a, a river water level DB 23b, a rainfall DB 23c, a reference water level DB 23d, and a weather warning / advisory DB 23e.

[0020] The automatic / manual flag 23a of the memory 23 is a storage unit that stores a value indicating whether the mode is the manual determination mode or the automatic determination mode.

[0021] The river water level DB 23b is a storage unit that stores observation data (river water level). The rainfall DB 23c is a storage unit that stores observation data (rainfall) in association with the name of an observation station / observation time. The rainfall observation data can be acquired from the telemeter system 3 or a radar rain gauge system. The reference water level DB 23d is a database that stores the names of rivers to be observed, the names of water level observation stations installed in the rivers, and the reference water level values ​​for each observation station. The weather warning / alert DB 23e is a storage unit that stores whether or not an advisory or alert has been issued.

[0022] Next, the processor 22 is a processing unit that includes an observation data control unit 22a and a mode setting unit 22b as processing functions according to the embodiment.

[0023] The observation data control unit 22 a is a processing unit that acquires observation data relating to river water levels and rainfall, and weather warning and advisory issuance information, and stores them in the memory 23 .

[0024] First, for water level data, the observation data control unit 22a receives observation data on the river water level from the telemeter system 3 and controls the storage of the data in the river water level DB 23b in the memory 23. At this time, the acquired observation information on the water level is compared with the reference water level DB 23d, and any observation data that exceeds the reference value is stored in the river water level DB 23b with a flag indicating that the data exceeds the reference value.

[0025] As for the rainfall data, the observation data control unit 22a receives the rainfall data from the radar rain gauge system 4 and controls the storage of the data in the rainfall DB 23c in the memory 23. Furthermore, the observation data control unit 22a acquires information on issuance / termination of weather warnings and advisories from the weather warning / advisory issuance system 5, and performs control to update the weather warning / advisory DB 23e. The observation data on water levels and rainfall stored in the memory 23 is transferred to the alarm mail server 10.

[0026] The mode setting unit 22b is a setting unit for selectively designating either the manual determination mode or the automatic determination mode, and selectively designating either the notification mode or the non-notification mode. In other words, the mode setting unit 22b is a control unit that determines the notification / non-notification mode and notifies the alarm mail server 10 of the result.

[0027] Furthermore, the mode setting unit 22b displays the current mode on the display unit of the operation terminal 30. When a change input to the automatic determination mode / manual determination mode is received from the operation terminal 30, the mode setting unit 22b updates the automatic / manual flag 23a.

[0028] In the manual determination mode, the mode setting unit 22b determines the notification / non-notification mode based on the operation of the operation terminal 30, and transmits a mode setting signal to the alarm mail server . On the other hand, in the automatic determination mode, the mode setting unit 22b checks whether or not an alarm or advisory has been announced. If it is (announced), the mode setting unit 22b determines that an alarm mail notification is necessary, and transmits a mode setting signal to the alarm mail server 10 to set the notification mode. If it is (not announced), the mode setting unit 22b determines that an alarm mail notification is unnecessary, and transmits a mode setting signal to the alarm mail server 10 to set the non-notification mode.

[0029] Here, the mode is switched, for example, from a display screen displayed on the display of the operation terminal 30. Whether the mode is manual determination mode or automatic determination mode according to an input from the operation terminal 30 is stored by updating the value of the automatic / manual flag 23a in the memory.

[0030] Here, a mode for determining whether or not an alarm mail needs to be sent will be described. There are a notification mode and a non-notification mode.

[0031] First, the notification mode is a mode in which, when the observed river water level or rainfall exceeds a threshold, an alarm email is sent to a specified address to notify the event.

[0032] In contrast, the non-notification mode is a mode in which no alarm email is sent when an alarm occurs. In this mode, no alarm email is sent even if the observed river water level or rainfall exceeds the threshold.

[0033] Furthermore, there are a manual determination mode and an automatic determination mode for determining the method of switching between the notification mode and the non-notification mode.

[0034] The manual determination mode is a mode in which the administrator is responsible for switching between the notification mode and the non-notification mode. In the manual determination mode, the operation terminal 30 displays whether the mode at that time is the notification mode or the non-notification mode, and allows input of a change. For example, a large number of abnormal values ​​may occur during system maintenance and inspection. In such a case, the manual determination mode is set in advance and the mode is switched to the non-notification mode to prevent the generation of an alarm mail. In the manual determination mode, the determines the notification / non-notification mode according to the operation of the administrator from the operation terminal 30, and transmits a mode setting signal to the alarm mail server to the mail delivery unit 12b (FIG. 3). When the notification mode is selected, an alarm mail is delivered from the mail delivery unit 12b (FIG. 3).

[0035] The automatic determination mode is a mode in which the notification mode and the non-notification mode are automatically switched based on a preset determination criterion. One example of the preset determination criterion is "switch to the notification mode when a weather alert is issued by a public institution." Note that in the automatic determination mode, the operation terminal 30 cannot switch between the notification mode and the non-notification mode. If it is desired to switch, the mode must first be switched from the automatic mode to the manual mode, and then the notification mode and the non-notification mode can be switched.

[0036] In the automatic judgment mode, it checks whether an alert or warning has been issued, and if an alert or warning has been issued, it determines that an email notification is necessary and sends a mode setting signal to the alarm mail server to set it to notification mode.On the other hand, if no alert or warning has been issued, it determines that an email notification is not necessary and sends a mode setting signal to the alarm mail server to set it to non-notification mode.

[0037] It should be noted that the criteria in the automatic determination mode are not limited to this. For example, the criterion may be "when the first observation data exceeds a reference value and the second observation data observed in the local government that observed the first observation data exceeds the reference value, the notification mode is set." For example, when the reference value is exceeded at multiple water level observation stations in a prefecture, or when the reference value is exceeded at multiple rainfall observation stations in a prefecture, etc.

[0038] Another criterion is "When the number of accesses per hour to a Web page that publishes the status of rivers exceeds a predetermined number, the notification mode is set." For example, the criterion may be to set the notification mode when the frequency of page views of a portal site for a river information system of a local government exceeds a predetermined value.

[0039] 3 is a functional block diagram showing an example of the alarm mail server 10. The alarm mail server 10 is a computer including a processor 12, a memory 13, an interface unit (I / F) 11, and a storage 14 such as a hard disk drive (HDD) or a solid state drive (SSD).

[0040] The interface unit 11 is an interface unit connected to the Internet 70 and a LAN leading to the communication processing server 20 .

[0041] The memory 13 is a storage unit that stores a notification / non-notification flag 13a, a destination list 13b, and a reference rainfall DB 13d.

[0042] Here, the notification / non-notification flag 13a is a flag that stores a value indicating whether the mode is the notification mode or the non-notification mode. The destination list 13b is a list in which email addresses to which alarm emails are to be sent are registered. The reference rainfall DB 13d is a database that stores the names of rainfall observation stations and the reference rainfall values ​​for each observation station.

[0043] The processor 12 is a processing unit that includes a notification mode setting acceptance unit 12a and a mail delivery unit 12b as processing functions according to the embodiment. The notification mode setting reception unit 12a receives a setting of either a notification mode in which an alarm mail is delivered, or a non-notification mode in which an alarm mail is not delivered. Switching between the notification mode and the non-notification mode is performed automatically by a mode setting signal from the mode setting unit 22b of the communication processing server 20. In the following description, "notification" of mail means delivering mail, and "non-notification" of mail is explained as being synonymous with not delivering mail.

[0044] The mail delivery unit 12b is a control unit that delivers an alarm mail via the Internet 70 as a communication network when the observation data exceeds a reference value in the notification mode. That is, when the mail delivery unit 12b receives the observation data, it refers to the notification / non-notification flag 13a and Do not send alarm emails in silent mode.

[0045] On the other hand, in the notification mode, the mail delivery unit 12b judges whether the observation data exceeds each reference value (threshold value). Specifically, for observation data related to water level data, the presence or absence of a reference value exceedance flag added by the communication control server 20 side is used to judge whether the observation data exceeds the reference value. For rainfall data, the observation information related to rainfall received from the communication control server 20 is compared with the reference rainfall DB 13c to judge whether the rainfall data exceeds the reference value. Here, the comparison of the rainfall data with the reference value is described as being performed on the alarm server 10 side, but the comparison with the reference value may be performed by the communication control server 20. In this case, it is possible to realize the above by moving the reference rainfall DB 13c to the communication control server 20 and configuring it.

[0046] If the observation data does not exceed the reference value, the mail delivery unit 12b does not deliver the alarm mail. On the other hand, if the observation data exceeds the reference value, the mail delivery unit 12b sends the alarm mail to the destinations registered in advance in the destination list 13b.

[0047] [Regarding mode setting operation from the operation terminal 30] Fig. 4 is a diagram showing an example of a web page displayed on the display of the operation terminal 30. Fig. 4 shows an example of a screen exclusively for the administrator of the river information system, and includes a [Notification setting] button 80 and a notification mode icon 90 indicating the notification mode / non-notification mode of the alarm mail.

[0048] Fig. 5 is a diagram showing an example of the screen of the operation terminal 30 in the non-notification mode. In Fig. 5, the notification mode icon 90 is an email mark superimposed with a road closure mark, and it is clearly indicated that the terminal is currently in the non-notification mode. When the operator clicks the [Notification setting] button 80, the notification setting screen of Fig. 6 is opened.

[0049] Fig. 6 is a diagram showing an example of a notification setting screen. This operation screen has an operation area (1. Automatic / Manual Determination Switch) for switching between automatic determination mode and manual determination mode, and an operation area (2. Email Notification / Non-Notification Switch) for switching between alarm email notification mode and non-notification mode. Either mode can be selected using a radio button. Fig. 6 shows an example of the display when the current mode is automatic determination mode and non-notification mode. From the state shown in FIG. 6, when the radio button for specifying the manual determination mode and the radio button for specifying the notification mode are clicked, the state shown in FIG.

[0050] Fig. 7 is a diagram showing an example of an operation screen for individually specifying the manual determination mode and the notification mode. When the registration button is clicked in Fig. 7, the window in Fig. 8 is opened.

[0051] Fig. 8 is a diagram showing an example of a "verify window" for reflecting the administrator's operation. When [OK] is clicked in the window of Fig. 8, the setting contents are notified from the operation terminal 30 to the communication processing server 20, and are reflected in the internal processing.

[0052] Fig. 9 is a diagram showing an example of the operation terminal 30 in the notification mode. Compared with Fig. 5, the road-blocking mark has been removed from the email mark, making it clear that the notification mode has been entered. Furthermore, when the administrator clicks the [Notification Settings] button 80, an operation screen similar to that in Fig. 6 is opened, and the settings can be changed. When the notification mode is activated, the created alarm email is sent immediately.

[0053] As in Figure 6, the current setting status is shown in the (1. Automatic / Manual Determination Switch) and (2. Email Notification / Hide Notification Switch) columns, and you can switch the setting by clicking the respective radio buttons.

[0054] Fig. 10 is a diagram showing another example of the operation screen of the operation terminal 30. Fig. 10 shows a state in which the radio button for automatic determination mode is clicked from the manual determination mode / notification mode (corresponding to Fig. 9). When the [Register] button is then clicked, the verify window of Fig. 8 is opened again, and the [OK] button is pressed to switch to automatic determination mode.

[0055] On the other hand, when the [Notification Settings] button 80 in FIG. 5 is clicked in the automatic determination mode, the notification settings screen in FIG. 11 is opened.

[0056] Fig. 11 is a diagram showing an example of an operation screen when the device is in the automatic determination mode and non-notification mode. The automatic determination mode is a mode in which the decision to switch between the notification mode and the non-notification mode is made automatically based on a preset determination criterion. Therefore, the device will be in either the notification mode or the non-notification mode depending on the situation at the time. Fig. 11 shows that the device is in the non-notification mode.

[0057] Next, the operation of the above configuration will be described. FIG. 12 is a flowchart showing an example of a processing procedure related to mode setting in the communication processing server 20.

[0058] The communication processing server 20 refers to the automatic / manual flag 23a in the memory 23 (FIG. 2) and determines whether the current mode is the automatic determination mode or the manual determination mode (step S11).

[0059] If it is the automatic determination mode, it is determined whether or not a preset determination criterion is met. As a specific example, the communication processing server 20 determines whether or not a weather warning has been issued at the present time based on information acquired from the dedicated line network 60 (step S12). As described above, the preset determination criterion here is not limited to this. In the following explanation, the preset determination criterion will be taken as an example of whether or not a weather advisory has been issued.

[0060] If a meteorological warning has been announced, the communication processing server 20 transmits a mode setting signal to the alarm mail server 10 to set the server to a notification mode (step S14).

[0061] If no meteorological warning has been announced, the communication processing server 20 transmits a mode setting signal to the alarm mail server 10 to set the server to the non-notification mode (step S15). The set mode is also notified to the operation terminal 30 and is reflected in the display content of the Web page (FIGS. 5 and 9).

[0062] On the other hand, if the manual determination mode is selected in step S11, the communication processing server 20 determines whether the administrator's designation via a Web screen operation on the operation terminal 30 is the notification mode or the non-notification mode (step S13).

[0063] If the notification mode is specified in the operation terminal 30, the communication processing server 20 transmits a mode setting signal to the alarm mail server 10 to set it to the notification mode (step S16). On the other hand, if the non-notification mode is specified in the operation terminal 30, the communication processing server 20 transmits a mode setting signal to the alarm mail server 10 to set it to the non-notification mode (step S17).

[0064] The alarm mail server 10, upon receiving an instruction from the communication processing server 20, stores the notification mode / non-notification mode specified by the communication processing server 20 as the value of the notification / non-notification flag 13a in the memory 13 (Figure 3) within the alarm mail server 10.

[0065] In this manner, with the notification / non-notification flag set in the alarm mail server 10, the observation data control unit 22a of the communication processing server 20 acquires observation data via the telemeter at predetermined time intervals and stores the observation data in the river water level DB 23b and the rainfall DB 23c. In addition, rainfall data acquired from the radar rain gauge system is also stored in the rainfall DB 23c. Furthermore, whether or not an advisory warning has been issued is also acquired, and stored in the weather warning / advisory DB. Furthermore, the observation data control unit 22a transfers the observation data stored in the river water level DB 23b and the rainfall DB 23c to the alarm mail server 10.

[0066] FIG. 13 is a flowchart showing an example of a processing procedure in the alarm mail server 10. The alarm mail server 10 receives observation data (such as water level and rainfall data) collected by the communication processing server 20 (step S31).

[0067] At this time, the mail delivery unit 12b refers to the value of the notification / non-notification flag 13a to determine whether its own mode is the notification mode or the non-notification mode (step S32). If it is the non-notification mode, the routine ends and the processing procedure returns to the caller.

[0068] On the other hand, if the notification mode is selected, the mail delivery unit 12b of the alarm mail server 10 refers to the reference water level DB 23d or the reference rainfall DB 13c and compares the acquired observation data with a predetermined reference value (step S33). If the observation data does not exceed the reference value (NO in step S34), the routine ends and the process returns to the caller.

[0069] If the observation data exceeds the reference value (YES in step S34), the mail delivery unit 12b creates an alarm mail and delivers the alarm mail to the destinations set in the destination list 13b (step S35).

[0070] As described above, in this embodiment, the alarm mail server 10 can be set to either a notification mode in which an alarm mail is delivered, or a non-notification mode in which an alarm mail is not delivered. In the notification mode, an alarm mail is delivered when the observation data exceeds a reference value, but in the non-notification mode, an alarm mail is not delivered regardless of whether the reference value is exceeded. This makes it possible to prevent erroneous delivery of mail due to abnormal values.

[0071] In the embodiment, the system can be set to a manual determination mode in which the administrator can switch between notification mode and non-notification mode at their own will, and an automatic determination mode in which the system automatically switches between notification mode and non-notification mode. In the automatic determination mode, an alarm email is sent only if, for example, a weather alert has been announced at the current time. In other words, even if observation data that would cause an alarm email to be created is detected, the alarm email will not be sent unless a weather alert has been announced. This also increases the reliability of the alarm email.

[0072] That is, according to the embodiment, whether or not to send an alarm email is automatically determined based on predetermined conditions, so that email notification can be sent only when it is truly necessary. Therefore, it is possible to avoid erroneous information notifications due to abnormal values ​​during normal times, reducing the workload of administrators and improving the reliability of the system.

[0073] In actual operation, there are cases where observation data from telemeters or information released by the Japan Meteorological Agency cannot be imported due to system failures, etc. For this reason, it is possible to set the system so that alarm email notifications can be executed by the administrator. This also allows the administrator to proactively control whether or not to notify. Furthermore, the current status can be clearly displayed on a web page for administrators, allowing the administrator to know the status for email notification.

[0074] From these factors, it is possible to provide a river information system, a river information providing system, and a river information alarm distribution method that prevent the notification of erroneous information due to abnormal values.

[0075] <Modification> It should be noted that the present invention is not limited to the above-described embodiment. For example, in step S12 in Fig. 12, the criterion may be not only whether a meteorological warning has been issued (issued), but also whether a warning, alert, or special alert has been issued. Alternatively, the criterion may be the rainfall condition (how many mm or more within a predetermined time period).

[0076] Also, for example, the following guidance message may be displayed in the windows of FIG. For example, in the (1. Automatic / Manual Determination Switching) area, guidance such as "You can switch the determination method for notifying / non-notifying emails to general residents. Select either "Automatic Determination" or "Manual Determination" and click the "Register" button. If you select "Manual Determination", please also select the notification method for email notification / non-notification switching and then click the "Register" button." may be displayed.

[0077] Also, in the (2. Email notification / non-notification switch) area, a guidance such as "You can manually switch the notification method for general resident emails between notification and non-notification. With "Manual determination" selected in "Automatic / manual determination switch," select "Notification mode" or "Non-notification mode," and press the "Register" button. Please note that the email notification / non-notification switch cannot be operated while automatic determination is in progress." may be displayed. In this way, a more user-friendly operational feel can be achieved.

[0078] Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, and are included in the scope of the invention and its equivalents described in the claims. [Explanation of symbols]

[0079] 1...River information system, 2...River information provision system, 3...Telemetry system, 4...Radar rain gauge system, 5...Weather warning and advisory issuance system, 10...Alarm mail server, 11...Interface unit, 12...Processor, 12a...Notification mode setting reception unit, 12b...Mail delivery unit, 13...Memory, 13a...Notification / non-notification flag, 13b...Destination list, 13c...Reference rainfall database, 14...Storage, 15...User device, 20...Communication processing server, 21 ...Interface unit, 22...Processor, 22a...Observation data control unit, 22b...Mode setting unit, 23...Memory, 23a...Automatic / manual flag, 23b...River water level database, 23c...Rainfall database, 23d...Reference water level database, 23e...Weather warning and advisory database, 24...Storage, 30...Operation terminal, 40...Wireless communication network, 50...Master station, 60...Leased line network, 70...Internet, 80...Button, 90...Notification mode icon, 120~12n...Observation station.

Claims

1. A telemetry system that collects observation data on river conditions; and a river information providing system that delivers an alarm email when the observation data exceeds a predetermined threshold. The river information providing system includes: an observation data control unit that receives the observation data from the telemetry system; a mode setting unit for selecting either a notification mode in which the alarm email is sent when the observation data exceeds a reference value, or a non-notification mode in which the alarm email is not sent, and for selecting either an automatic determination mode in which the notification mode and the non-notification mode are switched automatically when the number of accesses per hour to a web page that publishes the river status exceeds a predetermined number, or a manual determination mode in which the switching between the notification mode and the non-notification mode is performed manually; a mail delivery unit that creates an alarm mail when the received observation data exceeds a reference value while the notification mode is selected, and delivers the alarm mail via a communication network; A river information system equipped with:

2. The email delivery unit delivers the alarm email in response to an operation by an administrator in the manual determination mode. The river information system according to claim 1.

3. The mode setting unit has a display unit that clearly indicates whether the mode is the notification mode or the non-notification mode.

3. The river information system according to claim 1 or 2.

4. the mode setting unit has a display unit that clearly indicates whether the mode is the automatic determination mode or the manual determination mode; The river information system according to any one of claims 1 to 3.

5. A river information providing system for a river information system that acquires observation data from a telemetry system and delivers an alarm email when the observation data exceeds a predetermined threshold, an observation data control unit that receives the observation data from the telemetry system; a mode setting unit for selecting either a notification mode in which the alarm email is sent when the observation data exceeds a reference value, or a non-notification mode in which the alarm email is not sent, and for selecting either an automatic determination mode in which the notification mode and the non-notification mode are switched automatically when the number of accesses per hour to a web page that publishes the state of the river exceeds a predetermined number, or a manual determination mode in which the notification mode and the non-notification mode are switched manually; a mail delivery unit that creates an alarm mail when the observation data exceeds a reference value while the notification mode is selected, and delivers the alarm mail via a communication network; A river information system equipped with:

6. the email delivery unit delivers the alarm email in response to an operation by an administrator in the manual determination mode. The river information providing system according to claim 5.

7. The mode setting unit has a display unit that clearly indicates whether the mode is the notification mode or the non-notification mode.

7. The river information providing system according to claim 5 or 6.

8. the mode setting unit has a display unit that clearly indicates whether the mode is the automatic determination mode or the manual determination mode; The river information providing system according to any one of claims 5 to 7.

9. a process of selectively setting a mode between a notification mode in which an alarm email is sent and a non-notification mode in which the alarm email is not sent when observation data on the state of the river exceeds a predetermined threshold, either an automatic determination mode in which the switching is automatically performed when the number of accesses per hour to a web page that publishes the state of the river exceeds a predetermined number, or a manual determination mode in which the switching is performed manually; a step of setting the mode to either a notification mode in which an alarm mail is delivered or a non-notification mode in which the alarm mail is not delivered based on the setting in the case of the manual determination mode, or based on whether the number of accesses has exceeded a predetermined number in the case of the automatic determination mode being selected; receiving the observation data from a telemetry system in an observation data control unit; a step of an alarm mail server creating an alarm mail when the observation data exceeds a reference value in the notification mode, and distributing the alarm mail via a communication network.

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