JP2006234654A - System for providing river information - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system capable of providing river information, such as rainfall, river water level, and river image via a network. <P>SOLUTION: Rainfall data from a rainfall observatory and water level data from a water-level observatory are sorted respectively to form a database, and a river information server for providing the information, a WEB server for providing information of a document, an image or the like on a WEB system, and an observation camera for observing the image of the river are provided. In this river information providing system, data are acquired at a fixed period from the river information server, and a screen on a browser provided to a client is optimized based on the data, and thereby the present state of the river can be grasped readily. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a river information providing system, and more particularly to a system for reporting a river increase.

  Conventionally, river levels have risen due to rainfall, snowfall, etc., causing damage such as floods, inundation, and sediment disasters. For this reason, the river information provision system for observing the water level at each important point of the river and the amount of rainfall in the upstream, and determining the necessity of guiding the water to the adjustment pond and evacuating people in nearby private houses as necessary is known. (For example, refer to Patent Document 1).

  For example, as shown in FIG. 2, (1) map information, (2) installed water level observatory, rainfall observatory, for each river or area (monitoring area) on the web server In addition, the position of the monitoring equipment such as a monitoring camera and observation information or video information are recorded, and a graphic (icon) representing each monitoring equipment is displayed on the map from the Web server to the display device on the client terminal side via the network. An icon on the map that is displayed in the form of a Web browser and on which the user of the client terminal is displayed is specified using an input device (for example, a desired icon is clicked as a pointing device such as a mouse as an input device). Depending on the situation, there is a technology to display the water level data, rainfall data, or current river image of the designated monitoring equipment.

FIG. 2 is a diagram illustrating an example of a screen in which conventional river information is displayed on a display unit of a display device on a client terminal via a network. In FIG. 2, a browser screen 200 is displayed on the display unit of the display device of the client terminal in the form of a network browser. In the map information display unit 201, the monitoring equipment installed at the corresponding position on the map is displayed with icons (water level observation station 203, monitoring camera 204) together with the map information, and for each of the water level observation stations 203, The current water level information 205 is displayed by connecting with the leader line. The names of the water level observation stations 203 in the water level information 205 are temporarily displayed as “I”, “B”, “C”,. The water level in the water level information 205, for example, the water level at the low water level station is displayed as “0.70 m”. The standard water level at the observation point is zero m, and the difference from the standard water level is “m”. ".
At this time, if it is higher than the standard water level, no sign is indicated (or a plus sign is added), and if it is lower, a minus sign is added and displayed. The standard water level is determined based on past data for each observation point.

  Furthermore, the map information display unit 201 displays an icon 206 indicating a rain station installed at a corresponding position on the map, and each of the rain station 206 is connected by a leader line and is currently connected. Rainfall information 207 is displayed. The names of the rainfall stations 206 in the rainfall information 207 are temporarily displayed as “a”, “b”,..., “D”,. The rainfall in the rainfall information 206 is, for example, “12 mm” for the rainfall at the a station, but the latest information observed up to now is displayed. The unit of rainfall observed per hour is expressed in “mm”.

  Further, in the information column 202 next to the map information display unit 201, various explanations for the display, tools for operation, and the like are displayed. For example, the column 208 displays the name of the currently displayed screen 201 (for example, the region name or the monitoring area name), and the column 209 displays the type of observation facility displayed on the screen 201 (in FIG. 2, the water level). (Observation station, rainfall observation station, surveillance camera).

  In FIG. 2, normal map information (for example, map information such as roads, railways, place names, bridges, tunnels, lock gates, main facilities, city areas, fields, forests, lakes, land heights, etc.) is complicated. The display is omitted as much as possible. However, as a user, in order to know the relationship between the position of the observatory and the place of interest, the place you know well (for example, road information such as main buildings and intersections, railway track information such as railroad crossings and stations, Etc.) It would be convenient if something like a mark was displayed.

When the browser screen as shown in FIG. 2 is called via the network, for example, the “river information providing system” general guidance browser is called, and the displayed region information (for example, map display or region name display) is displayed. This can be realized by selecting a desired area from
In FIG. 2, when the client terminal user designates an icon representing the monitoring facility on the displayed map using the input device, the screen is switched to the monitoring data display screen of the designated monitoring facility, and the designated monitoring is performed. Equipment information is displayed on the screen

FIG. 3 is a diagram illustrating an example of a screen displaying a current river video and a water level. On the browser screen 300, a screen 301 and an information column 302 are displayed as in FIG. The screen 301 displays a screen 303 (images are omitted) for displaying the image 305 acquired by the monitoring camera 204 related to the water level observation station 203 designated on the screen 201 in FIG. The screen 303 displays, for example, the name 306 of the water level observatory, the current water level, and time information 307 such as the date and time when the video was acquired.
Further, the screen 301 schematically displays a cross-sectional view 304 of the topography near the water level observatory. In the sectional view 304, the current water level is visually drawn. The water quantity indicator 310 is a column that is placed along the riverbank from the riverbed of the river and has a scale of the water level fixed to the riverbed, so that the water level can be visually judged by looking at the scale coming out of the water surface. Is provided.
Further, in the information column 302, a column 309 for displaying the name of the water level observatory is added in addition to the name 208 on the screen 201 in FIG.

JP 2002-269656 A

In the conventional river information providing system, only information such as the current water level, rainfall, and monitoring video is displayed. For example, whether the water level has reached the warning water level is clicked on the icon of the water level observatory on the map screen, There was a need to search manually.
The objective of this invention is providing the river information provision system which can solve the above problems and can grasp | ascertain the present condition of a river easily.

  In order to achieve the above object, the river information providing system of the present invention is a river information providing system that distributes information such as rainfall, river water level, and river video on the Web. The map display screen that displays the installation position of the river changes the display color of the river on the map when the water level of the river rises higher than normal, and visually informs the river level change.

  Moreover, the river information providing system of the present invention displays a mark (icon) at the position of the corresponding address on the map by inputting or selecting the address on the map display screen.

In addition, the river information providing system of the present invention is preferably a screen that displays a current video image in the vicinity of the water level observation station when information such as rainfall, river water level, and river video is distributed on the Web. And display the image during normal or alert.
In addition, images during normal times or warnings are switched and displayed by user operation.
In addition, preferably, when information such as rainfall, river water level, river video, etc. is distributed on the web, it is displayed with easy-to-understand icons so that it can be determined whether the water level or rainfall is increasing or decreasing. .

  Moreover, the river information providing system of the present invention preferably switches the video display screen of the browser screen to be distributed from the normal image displayed by detection to the image at the time of warning when the warning water level is detected.

  In the river information providing system of the present invention, preferably, when a warning water level is detected, the currently displayed video on the video display screen of the browser screen to be distributed is set in advance (preset setting) and the camera position and Switch to the angle of view image.

  Moreover, the river information providing system of the present invention preferably displays the change in the water level from the current time to the past water level data and images in a unified manner.

Moreover, the river information providing system of the present invention preferably displays the entire river in a bird view, and displays the current image and water level of each water level observation station on the river in a unified manner.
Preferably, a time until the influence of the upstream water level exerts on the downstream side is displayed to provide a system in which the user can easily grasp the water level prediction. At this time, from upstream to downstream is represented by a cross-sectional view, and the water level and the inclination are displayed at a glance.

  The river information providing system of the present invention is preferably a river information providing system that provides disaster information for rivers on the Web, and includes an observation station that observes at least one of water level and rainfall information. , An imaging device that captures the position observed by the observing station as a monitoring field of view, a river information server that receives observation information observed by the observing station, stores the information in association with the observing station and the observation time, and image data captured by the imaging device Web server that stores and associates the observation station associated with the imaging device, the imaging device and the imaging time, and distributes the image data captured by the imaging device and the information transmitted by the river information server to the Web server. And communication means for distributing observation information transmitted from the observation station to the river information server, and the Web server transmits the observation information and the image data to the browser image. Create Te be distributed to a network such as the Internet.

  In the river information providing system of the present invention, preferably, a browser image is created as information for each monitoring area that is defined as a set of observation stations installed upstream or downstream of a predetermined river. The browser screen is distributed to a network such as the Internet.

  In the river information providing system of the present invention, preferably, one of the water levels observed by a water level observation station that observes the water level at a predetermined position of the river among the observation stations for each monitoring area is a predetermined warning water level. In the case of reaching the above, the Web server controls the imaging device associated with the corresponding observation station so as to be in a predetermined preset position.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the river information provision system which can grasp | ascertain the present condition of a river easily.

In the river information system of the present invention, information such as rainfall, river water level, river video, etc. is provided on the web, and the video display screen near the water level observation station provided is normally displayed along with the screen displaying the current video. The image at the time of warning is switched and displayed.
Furthermore, for each water level observation station, it is detected whether or not the observed water level has exceeded the warning water level. If it is determined that the warning water level has been exceeded, the normal image displayed on the screen is displayed on the system side. Switch to the image at the time of warning.

  In addition, when it is determined that the warning water level is being reached, the currently displayed video is switched to the camera position and angle of view set in advance (preset settings) for the monitoring camera associated with the detected location. The image acquired at the switched angle of view is displayed on the client terminal.

  Furthermore, the change in the water level observed at the target water level observing station is displayed in a unified manner by associating the past water level data with the image from the current time.

  Furthermore, the target river region is displayed in a bird's-eye view (bird's eye view), and the current image and water level of each water level observation station of the river are displayed in a unified manner.

  An embodiment of the present invention will be described with reference to FIG. FIG. 1 is a block diagram showing the configuration of an embodiment of the river information providing system of the present invention. Reference numeral 100 denotes a river information providing system that monitors a predetermined river area (monitoring area) and provides monitoring information as river information. 101-1 to 101-n are surveillance cameras (n is a natural number) placed at each important point of the river, 102 is a LAN (Local Area Network), 103 is a river information server, 104 is a Web server, 105 is the Internet, etc. , 106-1 to 106-k are client terminals (k is a natural number), 121 is a telemeter relay station, and 122-1 to 122-j are sensors (j is a natural number). Provide river information to monitor one or more monitoring areas with surveillance cameras 101-1 to 101-n, LAN 102, river information server 103, web server 104, sensors 122-1 to 122-j, and relay station 121 Configure system 100.

The surveillance cameras 101-1 to 101-n include those having a pan and tilt function and a zoom function.
When the surveillance cameras 101-1 to 101-n have, for example, pan, tilt, and zoom functions, the monitoring field of view range is controlled by one of the client terminals 106-1 to 106-k or the control of the web server 104. Can be switched. The monitoring cameras 101-1 to 101-n are Web cameras that, for example, compress and encode the acquired image in a format such as MPEG-2 and transmit it via the LAN 103. In addition, the monitoring cameras 101-1 to 101-n include, for example, a Web encoder that compresses and encodes the acquired image in a format such as MPEG-2 and transmits the result via the LAN 103.

  For example, if the river information server 103 determines that the water level observed at any water level observatory has reached the warning water level, the river information server 103 notifies the web server 104 that the water level observatory has reached the warning water level. To do. As a result, the Web server 104 transmits a control signal via the LAN 102 to the monitoring camera belonging to the observation station that has reached the warning water level. The surveillance camera that has received the control signal operates the pan and tilt function and the zoom function, images a predetermined surveillance visual field range registered in advance, and transmits the obtained image to the Web server 104 via the LAN 102.

The LAN 102 connects the monitoring cameras 101-1 to 101-n, the river information server 103, and the Web server 104. The monitoring cameras 101-1 to 101-n capture images in their respective imaging fields, and transmit the acquired images to the Web server 104 via the LAN 102. The monitoring cameras 101-1 to 101-n transmit identification information for specifying the monitoring camera, information for specifying the shooting time (year / month / day / time), and setting information of the monitoring camera at the time of shooting. Attach to the image you want.
By associating and recording these pieces of information together with images, it is possible to determine when and under what circumstances the surveillance camera captures and records the images stored (recorded) on the Web server 104 side. It can be used for situation judgment.

Sensors 122-1 to 122-j are installed at predetermined points in the observatory, for example, water level gauges, rain gauges, thermometers, seismometers and other meteorological phenomenon measuring instruments, motion detectors, infrared sensors. An object detector such as a microphone.
The information detected by the sensors 122-1 to 122-j is sent to the river information server 103 via the telemeter repeater 121, and the river information server 103 detects the information detected in association with the sensor installation location, detection time, etc. Record. The communication means that couples the sensors 122-1 to 122-j with the telemeter repeater 121 and the river information server 103 is preferably a dedicated line network such as a network line network, but may be wired, wireless, or optical communication.

  Also, for example, sensors 122-1 to 122-j are coupled to LAN 102, and information detected by sensors 122-1 to 122-j is transmitted to telemeter repeater 121 via LAN 102, and telemeter repeater 121 and The river information server 103 may be further connected by a dedicated line. The sensors 122-1 to 122-j are connected to the telemeter repeater 121, the telemeter repeater 121 and the LAN 102 are connected, and the information detected by the sensors 122-1 to 122-j is detected from the telemeter repeater 121. It may be transmitted to the river information server 103.

The river information server 103 creates a database of information (data) transmitted from water level stations, rainfall stations, seismic stations, etc., and performs data communication with the Web server 104. Data communication is realized via the LAN 102 in FIG. 1, for example.
The river information server 103 is used to store historical information such as water level, rainfall, seismic intensity, etc. (at the time of warning, flood, volcanic activity, etc.) It is possible to record a database of various water level change information, water level change information of each water level observing station accompanying rainfall, and output it appropriately.

  The river information server 103 executes predetermined data processing based on a predetermined program. For example, when it is determined that the water level observed at one of the water level observation stations has reached the warning water level, This is notified to the Web server 104. The warning water level and the conditions (threshold, etc.) for judging whether or not the critical water level has been reached are determined in advance by the monitoring system administrator and recorded in the river information server 103. The data input one after another is determined by always executing data processing such as comparison. If there is no data accumulation, the conditions for judging whether or not the warning water level or the dangerous water level has been reached are determined empirically, and there are some data that are accumulated at each observation station. For example, it is determined based on the accumulated data.

Web server 104 provides a web screen (browser screen) for the river information providing system to provide river information and other information to unspecified general users who connect client terminals 106-1 to 106-k to the Internet. It is also a server for distribution.
As described above, the Web server 104 communicates with the combined river information server 103 and the monitoring cameras 101-1 to 101-n via the LAN 102 at predetermined time intervals, and based on the obtained information, Change (update) browser screen data (for example, html document).

  Real-time video (live video) data from the monitoring cameras 101-1 to 101-n is transmitted to the Web server 104. The Web server 104 stores (records) desired real-time river images (images) requested by the client terminals 106-1 to 106-k, and normal and alert images near each observation station. Accumulating data.

  The WEB server 104 also requests the river information server 103 to provide information via the LAN 102 at regular intervals, and collects river data information. Based on these data, barrel construction of the map display screen, the video display screen, and the entire river display screen is performed. In addition, the web server provides river information screens via the Internet in response to requests from clients.

  The Web server 104 may distribute the recorded compressed encoding format (MPEG-2 in the above-described embodiment) to the client terminals 106-1 to 106-k. However, it may be distributed after being converted into another compression encoding format (for example, MPEG-4, JPEG (Joint Photographic Experts Group), or Motion JPEG).

In the embodiment of FIG. 1 described above, an example in which the water level at the water level observation station is observed as river data has been described. However, a rain observation station provided with a rain gauge as a sensor may be provided, and both the water level of the river and the rainfall in the basin may be provided as river data.
Furthermore, in addition to river information, an observation station having necessary sensors for disaster prevention information in general is provided, for example, as a system for providing observation and observation information as shown in (1) to (7) below. good.
(1) Water level observed at the above-mentioned water level observatory, (2) Rainfall observation station rainfall, pollen information, meteorological observation data, (3) Seismic intensity, (4) Atmospheric observatory Gas concentration data in the atmosphere such as dioxins, exhaust gas, photochemical smog, acid rain, (5) Fire information such as forest fires, (6) Tsunami information, (7) Volcano information.

  Next, in the river information providing system of the present invention, one of the client terminals 106-1 to 106-k (hereinafter referred to as the client terminal 106 as a representative of the client terminals 106-1 to 106-k) is the river information. The procedure for acquiring or viewing the content will be described with reference to FIGS. 4 to 10 are diagrams showing examples of screens displayed on the display unit of the client terminal 106 in the river information providing system of the present invention.

First, the client terminal 106 uses, for example, a general personal computer (PC). As the client terminal 106, a personal digital assistant (PDA) or a mobile phone may be used.
The user operates an input device of the client terminal 106 (for example, a keyboard, a pointing device such as a mouse, voice input, etc.) and calls a browser of the river information providing system on the screen displayed on the display unit.
In general, for example, (1) a browser for information in Japan as a whole, (2) a browser for classification information such as Hokkaido region, Tohoku region, Kanto region, etc. (3) Each prefecture or Hokkaido branch office A browser for each monitor, (4) a browser for a map in which prefectures or branches are further divided, and (5) a browser for each monitoring basin (each monitoring area) are displayed.
If the address on the Internet such as the URL (Uniform Resource Locator) of the browser home page is known, the above browsers (1) to (5) or other browsers can be directly accessed.

First, the user (1) accesses a browser for information on all of Japan, and displays map information for all of Japan on the display unit of the client terminal 106 (not shown). Then, the user selects (2) a desired monitoring area using the input device. As a result of the selection, a browser screen 400 as shown in FIG. 4 is displayed, and a screen 401 and an information tool column 402 are displayed in the browser screen 400 displaying the map information and river information providing area of the corresponding region. .
The map displayed in the screen 401 is surrounded by frames 403-1, 403-2, 403-3, and 403-4 for each monitoring area managed by one Web server described in FIG. Is displayed.

The user of the client terminal 106 looks at the browser screen 400 and selects one of the frames 403-1, 403-2, 403-3, and 403-4 (including the frame) surrounding the river information monitoring area to be known. Select one (for example, double-click with the mouse). Thus, for example, when the frame 403-4 is selected, a browser screen 200 shown in FIG. 5 (described later) is displayed on the display unit of the client terminal 106.
This operation can be realized, for example, by selecting (clicking with a mouse or the like) the area name of river information to be known from the area name of river information displayed in the field 404 in the information tool field 402.
Further, in the information tool column 402, a column 408 displaying the name of local map information corresponding to the screen 401 and a screen 405 displaying a map representing the whole of Japan are displayed. When the user selects any area in screen 405 (clicks with a mouse or the like), the display is switched to the selected local browser screen.

  FIG. 5 is a diagram showing an embodiment of the display screen of the river information system of the present invention. In the browser screen 500, a screen 501 displaying the map information of the river of the monitoring block selected by the user at the client terminal 106 in FIG. 4 and an information tool column 502 are displayed. The display information in the screen 501 is the same as that in FIG.

  In addition, in the information tool column 502, the name of the currently displayed screen 501 (for example, the region name or the monitoring area name) is displayed in the column 208 as well as in FIG. The type of observation facility (in Fig. 5, water level observation station, rainfall observation station, surveillance camera) is displayed in column 509.

  A check box is displayed to the left of the station type in column 509. If the check box is unchecked, the location and data of the corresponding type of station will not be displayed on screen 501; if checked, screen 501 will be displayed. . This is because the items other than the target observation item are complicated on the map and difficult for the user to search.

Further, in the information tool column 502, an upper screen 510 (screen 401 in FIG. 4 in the case of FIG. 5) 510 is displayed in a small size, and the user can select the image 501 of the currently displayed area and When another area is selected, the display of the image 501 is switched to the image of the selected other area. For example, if you want to see the area upstream of the river △ in Fig. 4, select the area within the area upstream of the river △ in the screen 510 (within the frame 403-3 in Fig. 4). The display of the display unit of the client terminal 106 is switched to the browser screen in that area (a state where another address on the Internet is accessed).
This switching can also be realized by selecting one of the monitoring area frame lists displayed in the column 511 and displayed in FIG.
Further, the screen 510 may be within the screen 501.

  Further, the information tool column 502 is provided with a column 512 in which addresses can be specified in a hierarchical structure in order to search for a position on the map displayed on the screen 501 by an address (or place name). For example, in the column 512 of FIG. 5, “XX town”, “X city”, “Δ × town”, and “□ ○ Δ town” are displayed. In this list, the list display is changed vertically by operating the right slider with a mouse or the like. The order of display is, for example, in order.

FIG. 6 shows an example of display switching. FIG. 6 is a diagram showing a part of the browser screen of one embodiment of the display screen of the river information system of the present invention. For example, when the user selects the Δ × town in the column 602 in the column 512 of FIG. 5, the display is switched to the column 512 ′, and the district name in the Δ × town is displayed as shown in the column 602 ′. At the same time, in the column 512, the place name information 601 of the higher classification is displayed as △△ prefecture, but the lower place name (however, the place name immediately above the place name in the column 602 ′) is the upper place name. Information 603 is displayed as △ × town.
For example, when the user selects the information 603, the field is switched to the column 512, and when the user selects the information 602, the list is switched to a higher place name list.
When the user finally selects a desired place name in a field without a slider (for example, field 512 '), for example, as shown in FIG. 7, an icon 701 such as a flag is displayed at the position of the corresponding place name in the browser screen 700. Is displayed on the map of the screen 501, and the user knows the location of the place name.

  The place name list in column 602 or 603 may display only place names in the map information display screen 501 of the currently displayed browser screen 500. For example, other place names may be displayed and In order to show that there is no image on the screen, the display colors may be distinguished. In addition, since it may be outside the observation area on the accumulated database, in this case, the display may be further distinguished from the current screen and the place name that is not on the current screen but exists on the database. When a place name that does not exist in the database is selected, the fact that the place name does not exist in the database may be displayed with subtitles or the like while maintaining the current display screen.

  When a place name that is on the database but is not on the current display screen is selected, it is linked in advance to the browser screen of the monitoring area most suitable for the selected place name and moved to the browser screen of the monitoring area. You may do it. Further, when it is desired to return to the previous browser screen, it is possible to select the “return” icon on the browser screen.

  Next, another embodiment of the present invention will be described with reference to FIG. As in the embodiment of FIG. 5, in the embodiment of FIG. 8, the river information server 103 inputs information on the water level observation station. In the embodiment of FIG. 8, the information of the water level observatory is analyzed each time input, and if the water level of the observatory is determined to be a warning water level, the determination information is transmitted to the Web server 104 and the station is monitored. If it is determined that the water level is a dangerous water level, the determination information is transmitted to the Web server 104. The web server 104 updates corresponding browser screen data (for example, html document) based on the information. For example, in response to information that the water level at the water level observatory has reached the warning water level, the corresponding station icon 803 blinks (the display is turned off or displayed at predetermined intervals) and Update the browser screen so that the basin part 850 of the river to be displayed is displayed in yellow. If the water level is dangerous, the browser screen is updated to display red. In addition to changing the display color, the thickness and shape may be changed, blinking, or sound may be output.

  Another embodiment of the present invention will be described with reference to FIG. FIG. 9 is a diagram showing a part of the browser screen of one embodiment of the display screen of the river information system of the present invention. FIG. 9 is a graphic symbol showing the degree of whether the water level tends to increase or decrease further in the current water level information 205 connected by the leader line in the browser screen 500 in FIG. (Icon) is displayed. By this display, the client terminal 106 is being browsed to determine whether it is okay because it is currently a warning water level, but is declining, or it is safe now, but it is a safe water level, but needs attention because it tends to increase rapidly. User can know. The determination of whether the trend is increasing or decreasing is performed according to the determination algorithm incorporated in advance by the river information server 103, and the result is transmitted to the Web server 104. The Web server 104 is determined according to the transmitted information. Update the browser screen.

In FIG. 9, the water level information 803 'in (a) is an example in which a graphic symbol (icon) 901-1 indicating that the water level of the corresponding observation station is increasing is displayed. The water level information 903-1 in (b) is an example of displaying an icon 901-2 indicating that the water level of the corresponding observation station tends to be flat. The water level information 903-2 in (c) is an example in which the icon 901-3 indicating that the water level of the corresponding station is decreasing is displayed. In addition, (d) water level information 903-3 is an example in which two icons 901-4 indicate that the water level of the corresponding observation station is increasing rapidly, and that the increasing level is indicated. Also, (e) is the same as (d), but with a more emphasized display by arranging two large icons 901-1 side by side.
Of course, other emphasis methods include blinking (the blinking interval may be changed), display with a conspicuous color scheme, sound output, and animation display.

Next, the browser screen 500, 700, or 800 in FIG. 5, FIG. 7, or FIG. 8 is viewed, and the icon of the observation station that the user wants to browse is selected (clicked with a mouse or the like). As a result of the selection, for example, a browser screen 1000 as shown in FIG. 10 is displayed on the display unit of the client terminal by switching to the browser screen 500, 700, or 800. FIG. 10 is a diagram showing an embodiment of the present invention, and is an example of a screen displaying the current river video and water level. On the browser screen 1000, a screen 1001 and an information tool column 1002 are displayed. The screen 1001 displays a screen 303 (image is omitted) that displays the image 305 acquired by the monitoring camera 204 associated with the water level observation station 203 designated on the browser screen 500, 700, or 800.
At this time, the screen 1001 displays a video of the river near the current target station (a live video acquired by the surveillance camera associated in advance) as a screen 303, for example, the name 306 of the water level station, the current water level, In addition, time information 307 such as the date and time when the video is acquired is displayed.

  Further, the screen 1001 displays a screen 1003 (image is omitted) for displaying an image 1005 acquired when the water level is normal (for example, the water level display is 0.00 m). The screen 1003 displays, for example, the name 306 of the water level observatory, a tab 1011 indicating that the image is a normal image, and shooting time information (for example, date, time) 1007. Time information 307 such as the water level and the date and time when the video was acquired is displayed.

  Also, if the user wants to see the image at the time of warning instead of the image at the normal time, the user can switch the image 1005 by selecting the tab 1012 of the image at the time of warning and The acquired image is displayed, and the shooting time information is displayed.

  In addition, when the user wants to see an image viewed from the sky instead of a normal image or a warning image, the user can switch the image 1005 by selecting the tab 1013 of the image viewed from the sky. The image seen from the camera is displayed, and the shooting time information is displayed. The image viewed from the sky may be recorded in the Web server 104 or the river information server 103 together with the shooting information, for example, in advance by a helicopter or satellite, and may be associated with an observation station or a monitoring camera. Alternatively, it may be connected to a network such as the Internet and displayed by means of a link or distribution from a website that provides aerial photographs or satellite photographs.

In addition, the screen 1001 schematically displays a sectional view 304 of the topography near the water level observation station. In the sectional view 304, the current water level is visually drawn.
Further, in the information tool column 1002, for example, a column 309 for displaying the name of the water level observatory is displayed in addition to the name 208 on the screen 501 in FIG.
Furthermore, in the information tool column 1002, for example, a screen 1021 obtained by reducing the screen 501 in FIG. 5 is displayed as a water level observatory map, and the user wants to display another image on the screen 1001. The screen can be switched by selecting a desired station in 1021 (clicking with the mouse etc.).
The same screen change can be made by switching to the station one upstream from the current station when the column 1022 is selected, and switching to the station one downstream from the current station by selecting the column 1023. If it is an observation station near a river branch point, a corresponding column is further displayed and the station can move upstream and downstream of the river.

Further, in FIG. 10, when the user clicks on the image 305 with a mouse or the like, another window 1100 as shown in FIG. 11 is displayed, and the current live image 305 is displayed in the screen 1101 in the other window 1100. Further, a list 1102 of images taken at a time that is a predetermined time later is displayed. At this time, the icon corresponding to the time displayed on the screen 1101 is displayed differently from other icons (for example, color, shape, size, modification, etc.).
Further, by selecting an icon of a desired time in the list 1102 in another window 1100, an image at the selected time can be displayed on the screen 1101.
The above-described display of another window can also be realized by clicking the screen 1001 in FIG. 10 when a normal image or a warning image is displayed. In this case, a plurality of different windows may be displayed.

Next, another embodiment of the present invention will be described with reference to FIGS.
In FIG. 10, when a history icon 1031 associated with the sectional view 304 is selected (for example, clicked with a mouse or the like), another window 1200 as shown in FIG. 12 is displayed. In another window 1200, a screen 1201 is displayed. In the screen 1201, reduced images 1202-1, 1202-2,..., 1202-7 of surveillance camera images taken in the past are arranged in order of shooting time. A graph 1203 such as a bar graph of the water level observed at the corresponding time is displayed, and the photographing time 1204 and the water level value 1205 at that time are graphed and displayed corresponding to each time.
When displaying the water level graph as a line graph, the data can be reflected more finely than the displayed time, and it can also be displayed as if the water level changes with a curve, so both the bar graph and the line graph are displayed. You may display.

Next, another embodiment of the present invention will be described with reference to FIGS.
In FIG. 10, by selecting (for example, clicking with the mouse) the recent state icon 1032 associated with the sectional view 304, the sectional view 304 of FIG. 10 is cut into the screen shown in FIGS. 13 (a) to (d). It is displayed instead.
FIG. 13 (a) is a schematic cross-sectional view 1301-1 showing the water level 3 hours before the current time. In the cross-sectional view 1301-1, the water level in the retroactive time and the retroactive time is displayed at the same time. FIG. 13 (b) is a cross-sectional view two hours ago, and FIG. 13 (c) is a cross-sectional view one hour ago. FIG. 13 (d) is a sectional view at present.

In the embodiment described in FIG. 13, the retroactive time can be set arbitrarily, and the display unit is not an hour unit, but can be set arbitrarily, such as every 30 minutes, every 2 hours, every 12 hours, or every day. it can.
In addition, the screen is set to switch automatically at a preset time interval (for example, every second), but if the user clicks the mouse, the screen is switched to the next display. It may be.

  In the cross-sectional view 304 of FIG. 10 and the cross-sectional views of FIGS. 13 (a) to (d), a normal water level, a warning water level, and a dangerous water level line 1033 at the observation point are also displayed. As a result, the user can easily grasp the river situation.

Next, another embodiment of the present invention will be described with reference to FIGS. In FIG. 7, when the user selects a rain station to be viewed (for example, clicked with a mouse or the like), the screen is switched to a browser screen 1400 displaying data of the corresponding rain station as shown in FIG. The browser screen 1400 displays preliminary rainfall data for the selected rainfall station. The display is shown by a graph 1401 and a table 1402, and a predetermined time period (for example, 30 hours) is displayed on one screen. Moreover, the rainfall at the time of observation and the accumulated rainfall are displayed as the rainfall. In the embodiment of FIG. 14, the rainfall at the time of observation is represented by a bar graph, and the cumulative rainfall is represented by a line graph.
In Table 1402, the observation time 1403 and the observation date 1404 are displayed, and the display switching of the data of the previous cycle time and the subsequent cycle time is displayed, for example, when the previous switch icon 1405 is selected. The past page screen is displayed from the data, and when the next switching icon 1406 is selected, the page screen in which the time has elapsed from the displayed rainfall data is displayed.

  Next, another embodiment of the present invention will be described with reference to FIGS. In FIG. 5, when the user selects the view icon 520 in the information tool column 502, the browser screen is switched to a display screen that allows a bird's-eye view of the river in a substantially horizontal direction in the displayed river information monitoring area. FIG. 15 shows an example of this, and a bird's-eye view screen 1501 of the corresponding monitoring area (for example, Δ □ river) is displayed in the browser screen 1500. Then, the images 1502 acquired by the monitoring cameras related to the respective stations are reduced and displayed in the vertical direction of the position of the station corresponding to the horizontal direction. Furthermore, a screen 1503 displaying the cross-sectional view showing the difference in elevation and the water level of the river is displayed in association with the position of each observation station. In addition, the date and time 1504 is displayed, and the time when the current screen 1503 was acquired can be known. In addition, the water level value 1506 and the station name 1508 of each station are displayed corresponding to the screen 1503, and the river level is affected from the highest river bed height to each station. 1507 is expected to be effective), and it helps users analyze the current situation and make future predictions.

As a result, in the case of officials of public organizations, the situation can be grasped in time, and if necessary, it is necessary to open a lock and divert water to the adjustment pond, and to inform evacuation advisories to nearby private houses. It is possible to quickly determine whether or not.
In addition, for the general public, the situation can be grasped in time, and the situation and prediction of the neighborhood, evacuation site, evacuation route, etc. can be judged quickly, so that safe evacuation and preparation or waiting for evacuation are possible. Can be done with confidence.

  Also in FIG. 15, a recent status icon 1505 is provided. The recent state icon 1505 has the same function as the function described with reference to FIGS. In other words, by selecting the recent state icon 1505, the display of the image 1502, the screen 1503, the year / month / day time 1504, and the water level value 1506 of each observing station is traced back from the current time for a predetermined time as in FIG. Switch at intervals.

Next, in the river information providing system described in FIG. 1, at least one of the monitoring cameras 101-1 to 101-n
In the embodiment of FIG. 1, when the water level observed at any of the water level stations is higher than the warning water level, the web server 104 outputs a control signal to the monitoring camera belonging to the corresponding station, An image in a predetermined monitoring field of view (preset position) is acquired. For example, this predetermined monitoring visual field can be adjusted to the scale portion of the quantity water mark 310 provided in the river. For example, the central part of the surveillance camera is controlled so as to focus on the scale of the warning water level at the surveillance position, and the monitoring visual field is set within a range where the scale of the dangerous water level can be seen from the warning water level of the quantity water mark 310. Also, for example, in the case of a surveillance camera or web server with an image processing function, the surveillance camera or web server automatically recognizes the water surface of the river and controls pan and tilt, zoom means, and focusing means. And set the monitoring field of view automatically.

  In another embodiment of the present invention, when the Web server 104 recognizes that there is an observation station whose warning water level is higher than the warning water level, it has been accessed to obtain river information of the monitoring area to which it belongs (a request for transmission). The browser screen delivered to the client terminal 106 is the browser screen (eg, Fig. 10) of the observatory that has reached the warning water level or higher, the current live image is displayed on the screen 303, and the water level warning is displayed on the screen 1003. At the time, the image data at the time of warning stored and stored in advance is displayed as a default. At this time, the live video screen 303 displays a video at a preset position set in advance.

Next, an embodiment of a configuration for the Web server 104 to control the monitoring camera 101 will be described with reference to FIG. FIG. 16 is a block diagram showing a partial configuration of a river information providing system according to an embodiment of the present invention.
Reference numeral 1601 denotes an imaging apparatus including a pan and tilt mechanism and a zoom mechanism. 1602 is a control unit for controlling the imaging device 1601, 1603 is an image encoder, 1604 is a switching hub (SWHUB), 1605 is an operation unit, 1608 is a display unit combined with the operation unit 1605, 1606 is an image decoder, and 1607 is A monitor 1609 is a network such as a LAN.

  The imaging device 1601 is, for example, a TV camera (television camera) equipped with an imaging device such as a CCD (Charge Coupled Device). A network 1609 is used for communication between the image encoder 1603 and the SWHUB 1604.

  The imaging device 1601, the control unit 1602, and the image encoder 1603 constitute one set of the surveillance camera 101, and the SWHUB 1604, the operation unit 1605 (including the display unit 1608), the image decoder 1606, the monitor 1607 (display unit 1608). Web server 104 is configured. The Web server 104 is connected to a network 105 (not shown).

  In the system of FIG. 16, at least one set of surveillance cameras and one set of Web servers are connected by a network 1609. On the Web server 104 side, there is an administrator who monitors each monitoring place on the monitoring camera 101 side or manages the system.

  In FIG. 16, only one set is shown for each of the monitoring camera 101 side and the Web server 104 side, but there are often a plurality of sets, and in the configuration of the monitoring camera side, a plurality of imaging devices are installed. In this case, the control unit 1602 selects any one of the images acquired by the plurality of sets of imaging devices and transmits the selected image to the Web server 104 via the network 1609.

In FIG. 16, the imaging device 1601 captures the inside of the monitoring visual field under the setting conditions (visual field direction, zoom ratio, lens aperture, shutter speed, photographing time, etc.) instructed from the control unit 1602, and the captured image is a video signal. Is output to the image encoder 1603.
The image encoder 1603 converts the input video signal into image data of a predetermined compression method such as MPEG-2 and outputs it to the SWHUB 1604, and also receives a control signal given from the controller 1605 via the SWHUB 1604. Output to the controller 1602. The control unit 1602 controls the imaging device 1601 according to the control signal given from the operation device 1605.

  The SWHUB 1604 outputs the image data output from the image encoder 1603 to the controller 1605 and the image decoder 1606. The image decoder 1606 decodes the image data (compressed video) sent from the image encoder 1603 via the SWHUB 1604, converts it into a video signal in a format that can be displayed by the monitor 1607, and outputs the video signal to the monitor 1607. The monitor 1607 displays an image captured by the imaging device 1601 based on the input video signal.

The controller 1605 receives an instruction from the administrator via a man-machine interface (not shown, for example, a pointing device such as a keyboard and a mouse, a microphone, a dedicated operation panel, etc.), and maintains the system such as the imaging device 1601. Operate and manage.
The operation device 1605 displays an operation screen on the display unit 1608. For example, the operation device 1605 performs software processing (image processing) on the image data sent via the SWHUB 1604 and displays it in the operation screen.

The administrator uses the operation device 1605 to perform the following operations while viewing the display screen of the display unit 1608.
(1) The administrator selects the imaging device 1601 belonging to the desired observation station.
(2) The administrator selects a preset position. For example, the administrator operates the man-machine interface to control the corresponding monitoring camera, sets the monitoring field of view to be seen at the time of the water level at the time of warning, and sets the condition as a preset position, for example, Register in the storage unit in the controller 1605.
By repeating the above (1) and (2), the administrator registers the preset positions of all the monitoring cameras in advance.

  In the above embodiment, the preset position is registered in the Web server 104, and the Web server 104 controls the surveillance camera 101. However, the camera server is separately provided, for example, a camera server between the LAN 102 and the Web server 104. And the camera server may control the surveillance camera according to a command from the Web server 104. As another embodiment, a camera server may be provided between the LAN 102 and the monitoring camera, and the camera server may control the monitoring camera according to a command from the Web server 104. At this time, one camera server may be prepared for each of a plurality of monitoring cameras (for example, every 15 units, for example, every 30 units).

As described above, according to the present invention, the current video and the normal video can be displayed in a unified manner.
In addition, normal images can be switched and displayed using tabs or the like.
In addition, as in the embodiment described with reference to FIG. 15, the entire river (or one monitoring area) is displayed in bird view (displayed in a bird's eye view), and the current image and water level of each water level observation station of the river are displayed in a unified manner. be able to. This bird view screen makes it possible to grasp at a glance the water level of the entire current river (or monitoring area).

FIG. 17 is a diagram for explaining another embodiment of the river information providing system of the present invention. FIG. 17 combines a plurality of river information providing systems configured as shown in FIG. 1 to provide monitoring information in a wider area.
In FIG. 17, the river information providing systems 101-1, 101-2,..., 101-m (m is a natural number) equivalent to FIG. Is bound to. This server 1701 combines river information providing systems of different systems, and provides information to the client terminals 106-1,..., 106-k via the network 105.

The block diagram which shows the structure of one Example of the river information provision system of this invention. The figure which shows an example of the display screen of the conventional river information system. The figure which shows an example of the display screen of the conventional river information system. The figure which shows one Example of the display screen of the river information system of this invention. The figure which shows one Example of the display screen of the river information system of this invention. The figure which shows one Example of the display screen of the river information system of this invention. The figure which shows one Example of the display screen of the river information system of this invention. The figure which shows one Example of the display screen of the river information system of this invention. The figure which shows one Example of the display screen of the river information system of this invention. The figure which shows one Example of the display screen of the river information system of this invention. The figure which shows one Example of the display screen of the river information system of this invention. The figure which shows one Example of the display screen of the river information system of this invention. The figure which shows one Example of the display screen of the river information system of this invention. The figure which shows one Example of the display screen of the river information system of this invention. The figure which shows one Example of the display screen of the river information system of this invention. The figure which shows the structure of one Example of the river information system of this invention. The block diagram which shows the structure of one Example of the river information provision system of this invention.

Explanation of symbols

  100: River information provision system, 101-1 to 101-n: Surveillance camera, 102: LAN, 103: River information server, 104: Web server, 105: Network network, 106-1 to 106-k: Client terminal, 121 : Telemeter relay station, 122-1 to 122-j: Sensor, 200: Browser screen, 201: Map information display section, 202: Information column, 203: Icon indicating water level observatory, 204: Icon indicating surveillance camera, 205 : Water level information, 206: Rainfall station icon, 207: Rainfall information, 208, 209: Column, 300: Browser screen, 301: Screen, 302: Information column, 303: Screen, 304: Cross section, 305: Image 306: Name of the water level observatory, 307: Time information, 309: Column, 310: Water gauge, 400: Browser screen, 401: Screen, 402: Information tool column, 403-1, 403-2, 403-3 , 403-4: Frame, 404: Monitoring area name display column, 405: Screen, 500: Browser screen, 501: Image 502: Information tool column, 509: Column, 510: Screen, 511, 512, 512 ': Column, 520: View icon, 601: Information, 602, 602': Column, 603: Information, 700, 800: Browser screen , 701: Icon, 803: Icon indicating the water level observatory, 805: Water level information, 850: Partial river basin during warning or dangerous water level, 1000: Browser screen, 1001: Screen, 1002: Information tool column, 1003: Screen, 1005: Image, 1007: Time information, 1011, 1012, 1013: Tab, 1021: Screen, 1022, 1023: Column, 1032: Current status icon, 1033: Line, 1100: Separate window, 1101: Screen, 1102: List , 1200: Separate window, 1201: Screen, 1202-1 to 1202-7: Image, 1203: Bar graph, 1204: Shooting time, 1205: Rainfall, 1301-1 to 1301-4: Cross section, 1400: Browser screen, 1401 : Graph, 1402: Table, 1403: Observation time, 1404: Observation date, 1405, 1 406: Switch icon, 1500: Browser screen, 1501: Screen, 1502: Bird's eye view, 1503: Screen, 1504: Date, time, 1505: Current status icon, 1506: Water level, 1507: Estimated time, 1508: Observatory Name: 1601: Imaging device, 1602: Control unit, 1603: Image encoder, 1604: SWHUB, 1605: Controller, 1606: Image decoder, 1607: Monitor, 1608: Display unit, 1609: Network network.

Claims (3)

A river information provision system that provides disaster information for rivers on the web.
An observation station that observes at least one of water level and rainfall information;
An imaging device for imaging the position observed by the station as a monitoring field;
A river information server that receives observation information observed by the station and stores the information in association with the station and the observation time;
A web server that receives image data captured by the imaging device and stores the image data in association with the observation station associated with the imaging device, the imaging device, and the imaging time;
Communication means for distributing image data captured by the imaging device and information transmitted by the river information server to the Web server;
Communication means for distributing observation information transmitted from the observation station to the river information server,
A river information providing system, wherein the Web server creates the observation information and the image data as a browser image and distributes it to a network such as the Internet. In the river information providing system according to claim 1,
A browser image is created as information for each monitoring area defined as a set of stations located upstream or downstream of a preset river, and the browser screen is distributed to a network such as the Internet. River information provision system characterized by that. In the river information providing system according to claim 1,
If any of the water levels observed by the water level observation station that observes the water level at a given position in the river among the observation stations for each monitoring area has reached the predetermined warning water level, the web server A river information providing system for controlling an imaging device associated with an observation station so that a predetermined preset position is set in advance.

Images